Abstract

A movable belt breakage prevention and catching system for a belt conveyor includes a detection device, two tracks, a plurality of catching devices, and a control system. The detection device is mounted on the belt conveyor, and is configured to detect whether a belt of the belt conveyor has a crack. The two tracks are symmetrically arranged on both sides of the belt conveyor, and the plurality of catching devices are symmetrically arranged on the two tracks. The control system is configured to control the plurality of catching devices to simultaneously catch the belt firmly when the detection device detects that the belt has a crack; and after firmly catching the belt, each catching device is able to unidirectionally move along with the belt along the track where the catching device is positioned.

IPC Classes  ?

• B65G 43/06 - Control devices, e.g. for safety, warning or fault-correcting interrupting the drive in case of driving-element breakageBraking or stopping loose load-carriers
• B65G 43/02 - Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load- carriers, e.g. for interrupting the drive in the event of overheating
• F15B 11/16 - Servomotor systems without provision for follow-up action with two or more servomotors
• G05B 19/4155 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by programme execution, i.e. part programme or machine function execution, e.g. selection of a programme

Abstract

A hydro-viscous speed regulating device for heavy-load start of a belt conveyor is provided. An input shaft and an output shaft are connected through a spline tube, an inner friction plate set, and an outer friction plate set. The inner and outer friction plate sets are controlled by an inner oil cylinder and an outer oil cylinder respectively. Oil inlet and oil return of the inner oil cylinder and the outer oil cylinder are controlled by an oil inlet valve core and an oil return valve core automatically. During starting process, pressure oil enters into the outer oil cylinder, and pushes the outer friction plate set to be engaged to provide torque required by the output shaft. After the starting process is completed, the revolving speed of the output shaft rises; the oil inlet valve core and the oil return valve core move outward under the effect of a centrifugal force; the pressure oil enters into the inner oil cylinder and pushes the inner friction plate set to be engaged to provide torque required by the output shaft, and at the same time, oil returns to the outer oil cylinder. That is, during starting process, the outer friction plate set provides large torque required for start, and the inner friction plate set provides small torque during normal operation. The present invention achieves automatic switching between different torque required for start and normal operation. Moreover, the present invention has a compact structure, reliable performance, and low costs, and is applicable in a wide range.

IPC Classes  ?

• F16D 25/10 - Clutch systems with a plurality of fluid-actuated clutches
• F16D 25/12 - Details not specific to one of the before-mentioned types
• F16D 43/284 - Internally controlled automatic clutches actuated by fluid pressure controlled by angular speed
• F16D 43/30 - Systems of a plurality of automatic clutches

Abstract

The present invention discloses a single-drive bidirectional-crawling pipe-cleaning robot, including a front body assembly, a transmission assembly, and a rear body assembly. The transmission assembly is driven by a single power source, and a transmission effect of a connecting rod mechanism, a gear mechanism, and an equal-dwell cam mechanism is used to implement alternate retraction and support of the front body assembly and the rear body assembly in a radial direction and a telescopic motion in an axial direction between the front body assembly and the rear body assembly and at the same time implement synchronous rotation of a dredging cutter head, so as to implement bidirectional crawling and pipe cleaning work of the robot along a pipe. The present invention is stable, reliable, compact, and practical, and implements single-drive bidirectional crawling and pipe cleaning in a pipe having a greatly changing pipe diameter, so that the obstacle negotiation performance and adaptability to pipe diameter changes of an in-pipe robot are effectively improved, the endurance of the in-pipe robot is improved, and practical engineering significance in cleaning of a horizontal pipe having a greatly changing pipe diameter is provided.

IPC Classes  ?

• B08B 9/051 - Cleaning the internal surfacesRemoval of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes the cleaning devices having motors for powering cleaning tools
• B08B 13/00 - Accessories or details of general applicability for machines or apparatus for cleaning
• F16L 55/32 - Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
• F16L 101/12 - Cleaning
• E03F 9/00 - Arrangements or fixed installations for cleaning sewer pipes, e.g. by flushing
• E02F 3/20 - DredgersSoil-shifting machines mechanically-driven with digging wheels turning round an axis with tools that only loosen the material

Abstract

A device for cage jamming buffer of large-tonnage hoisting system of ultra-deep shaft is provided. End cage jamming buffer mechanisms are added at both ends of an automatic wire rope tension balancing mechanism, wherein the end cage jamming buffer mechanisms include an end buffer module and an end fixing module, and the end buffer module and the end fixing module are respectively mounted on shafts of the automatic wire rope tension balancing mechanisms at two ends. The end buffer module mainly consists of a buffer bearing pedestal, a limit block, a buffer block, and a stop block sequentially mounted on the shaft of the automatic wire rope tension balancing mechanism at one end. The end fixing module mainly consists of a fixing bearing pedestal and a fixing block mounted on the shaft, wherein the fixing bearing pedestal is connected to a transmission gear by an adjusting bolt.

IPC Classes  ?

• B66B 5/28 - Buffer-stops for cars, cages, or skips
• B66B 15/06 - Drums
• B66B 5/02 - Applications of checking, fault-correcting or safety devices in elevators responsive to abnormal operating conditions
• B66B 7/10 - Arrangements of ropes or cables for equalising rope or cable tension

Abstract

An abrasive recovery circulation system of pre-mixed abrasive water-jet. The abrasive recovery circulation system comprises a water trough (2), an overflow device (3), a vibrating screen (4), a slurry pump (5), and a water tank (6). A first sand adding opening (8) is provided on the top of the water tank (6), a stirring device is provided inside the water tank, and the bottom of the water tank is connected to an abrasive storage tank (15) by means of a compression feeding system and a high-pressure one-way valve (14) in sequence; a second sand adding opening (16) is provided on the top of the abrasive storage tank (15), and the bottom of the abrasive storage tank (15) is connected to a nozzle (1) and a high-pressure water pump (17) by means of a high-pressure water pipe (1.1). The abrasive recovery circulation system can achieve recycling and continuous feeding of abrasives under the condition of a single abrasive storage tank, the working performance is stable and controllable, and higher working pressure can be used.

IPC Classes  ?

• B24C 3/00 - Abrasive blasting machines or devicesPlants
• B24C 7/00 - Equipment for feeding abrasive materialControlling the flowability, constitution, or other physical characteristics of abrasive blasts
• B24C 9/00 - Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material

Abstract

The present invention discloses a wireless sensor node with a hierarchical protection structure, including a node hardware circuit and a node hierarchical protection structure. The node hardware circuit includes a sensor module, a data processor module and a wireless communication module, and the node hierarchical protection structure includes a primary sealed protection structure and a secondary strengthened protection structure; the primary sealed protection structure includes an ABS spherical inner shell; the data processor module and the wireless communication module are disposed in the ABS spherical inner shell; gaps in the ABS spherical inner shell are filled with EPE cushioning foam; a flame-retardant and thermal-insulating layer made of a nanometer aerogel insulation blanket is covered on the outside of the ABS spherical inner shell; the secondary strengthened protection structure includes a spherical nylon outer shell with vent holes; the spherical nylon outer shell and the ABS spherical inner shell are connected with each other through support of rubber dampers; and the sensor module is disposed in the spherical nylon outer shell. The node according to the present invention can be deployed by ejection, is highly adaptive to catastrophes, can acquire environmental information effectively, and has relatively low costs.

IPC Classes  ?

• H04W 84/18 - Self-organising networks, e.g. ad hoc networks or sensor networks
• H04B 1/03 - Constructional details, e.g. casings, housings

Abstract

Disclosed is a steel wire rope tension automatic balancing device for long-distance rope adjustment. The steel wire rope tension automatic balancing device is mainly composed of several basic mounting modules mounted in a force transmitting frame (3) after being connected by means of a sleeve (2-4). The basic mounting module comprises two rotary drum rope storage means (1), two planet carriers (2-2) arranged inside the rotary drum rope storage means (1), and four bevel gear transmission mechanisms (2) mounted at two sides of the rotary drum rope storage means (1). The force transmitting frame (3) is mainly composed of a force transmitting shaft (3-1), a side longitudinal beam (3-2), an intermediate longitudinal beam (3-3), a cross beam, angle steel (3-4) and a stand column (3-5). The bevel gear transmission mechanism (2) comprises a set of engaged bevel gears where the angle included between axes thereof is 90 degrees. A bevel pinion (2-1) is mounted, by means of a bearing, on branches (2-2-1) circumferentially and uniformly distributed on the planet carrier (2-2), a tail end of each branch is fixedly connected to an end cover of the rotary drum rope storage means (1), an inner side of the planet carrier (2-2) is mounted on the force transmitting shaft (3-1) by means of a bearing, and an outer side of the planet carrier (2-2) is mounted in a groove (1-1-1) of the planet carrier.

IPC Classes  ?

• B66B 7/10 - Arrangements of ropes or cables for equalising rope or cable tension

Abstract

An automatic tension balancing apparatus for side-by-side borne steel wire ropes, comprising a left adjusting device I (01), a plurality of middle adjusting devices I (02), and a right adjusting device I (03). The left adjusting device I (01) and the right adjusting device I (03) each mainly consists of a support shaft I (1), an end portion bearing base I (2), an inner bearing base I (4), a large bevel gear I (7), a small bevel gear I (5), a roller I (3), and a lifting steel wire rope I (6); each middle adjusting device I (02) mainly consists of a support shaft I (1), an inner bearing base I (4), a large bevel gear I (7), a small bevel gear I (5), a roller I (3), and a lifting steel wire rope I (6); the middle regulating devices I (02) are connected to each other by means of middle rotary rings I (4-1) of the inner bearing base I (4), and the middle adjusting devices I (02) are connected to the left adjusting device I (01) and to the right adjusting device I (03) by means of middle rotary rings I (4-1) of the inner bearing base I (4); one lifting steel wire rope I (6) is wound on each roller I (3); and the winding directions of the lifting steel wire ropes on adjacent rollers I (3) are opposite.

IPC Classes  ?

• B66B 7/10 - Arrangements of ropes or cables for equalising rope or cable tension

Abstract

A tension balancing apparatus for multiple steel wire ropes of an ultra-deep lifting system, comprising end bearing seats (1), a shaft (2), planetary gears (5), first rollers (7) each embedded with a pair of outer spur gears II (7-1), and second rollers (8) each embedded with a pair of inner spur gears II (8-1). The end bearing seats (1) are respectively mounted on the two ends of the shaft (2). An inner spur gear I (4) and an outer spur gear I (3) are respectively provided on the sides of the two end bearing seats (1) facing the shaft. A plurality of planetary gears (5) is further arranged on the shaft (2). The planetary gears (5) located on the two ends are respectively engaged with the inner spur gear I (4) or the outer spur gear I (3). The first rollers (7) and the second rollers (8) are alternatively arranged among the planetary gears (5). The middle portions of planetary carriers of the planetary gears (5) are fixedly connected to the shaft (2). The two sides of each planetary gear (5) are respectively engaged with the outer spur gear II (7-1) of the first roller (7) and the inner spur gear II (8-1) of the second roller (8). Steel wire ropes on adjacent rollers are wound in opposite directions.

IPC Classes  ?

• B66B 7/10 - Arrangements of ropes or cables for equalising rope or cable tension

Abstract

Disclosed is a cage jamming buffering device for an ultra-deep vertical shaft large-tonnage hoisting system. An end cage jamming buffering mechanism is additionally provided at two ends of automatic wire rope tension balancing mechanisms (01). The end cage jamming buffering mechanism comprises an end buffering module and an end fixing module, wherein the end buffering module and the end fixing module are respectively mounted on shafts of the automatic wire rope tension balancing mechanisms (01) located at two ends; the end buffering module is mainly composed of a buffering bearing pedestal (37), a stop block (34), a buffering block (35) and a stop block (36), which are sequentially mounted on the shaft of the automatic wire rope tension balancing mechanism (01) located at one end; the end fixing module is mainly composed of a fixed bearing pedestal (41) and a fixed block (43), which are mounted on the shaft, the fixed bearing pedestal (41) being connected to a transmission gear by means of an adjusting bolt (42), and the fixed block (43) being located between the transmission gear and the fixed bearing pedestal (41); and before the shaft rotates, a distance is reserved between the stop block (36) and the buffering block (35) on the transmission gear adjacent to the stop block. The device can ensure that a wire rope is not be broken when an ultra-deep vertical shaft large-tonnage hoisting system has a cage jamming fault.

IPC Classes  ?

• B66B 5/28 - Buffer-stops for cars, cages, or skips
• B66B 5/02 - Applications of checking, fault-correcting or safety devices in elevators responsive to abnormal operating conditions

Abstract

Disclosed is a movable belt break protection and capture system for a belt conveyor, belonging to the technical field of belt break protection for belt conveyors. The system comprises a detection device, two rails (1), a plurality of capture devices (2), and a control system, wherein the detection device is mounted on a belt conveyor (3) and is used to detect whether a belt (4) of the belt conveyor (3) is cracked; the two rails (1) are symmetrically arranged on two sides of the belt conveyor (3), and the plurality of capture devices (2) are symmetrically arranged on the two rails (1); and the control system is used to control the plurality of capture devices (2) to firmly grasp the belt (4) simultaneously when the detection device detects that the belt (4) is cracked, and after firmly grasping the belt (4), the capture devices (2) can all move in one direction along the rails (1) where same are located under the drive of the belt (4). The system can capture the belt in a timely manner when the belt is cracked, and the belt conveyor can continue to operate after the belt is captured.

IPC Classes  ?

• B65G 43/02 - Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load- carriers, e.g. for interrupting the drive in the event of overheating

Abstract

A vertical shaft steel wire rope cage guide sliding sleeve wear amount detection device includes flexible printed circuit (FPC) flat cable units, voltage detection circuit units, a control system, and data display equipment. Two end faces of a vertical shaft steel wire rope cage guide sliding sleeve are provided with the FPC flat cable units, the FPC flat cable units being sequentially attached to end portion surfaces of the sliding sleeve along an outer periphery of a rope hole of a steel wire rope to form an enclosure; each FPC flat cable unit is connected to one voltage detection circuit unit; a signal input end of the control system is connected with the voltage detection circuit units, and a signal output end of a control module is connected to a wireless transmission module; and the data display equipment receives data transmitted by the wireless transmission module.

IPC Classes  ?

• G01B 7/00 - Measuring arrangements characterised by the use of electric or magnetic techniques
• G01B 7/06 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness for measuring thickness
• B66B 19/06 - Applications of signalling devices

Abstract

A multi-stage multipurpose hydraulic pressurizer with a variable pressurization rate is provided. The pressurizer comprises a multi-stage pressurizing structure part, a hydraulic oil loop having a control part, and a pressurizing fluid loop having a control part. The multi-stage pressurizing structure comprises a hydraulic cavity, a first-stage pressurizing cavity, a second-stage pressurizing cavity and a third-stage pressurizing cavity. The hydraulic oil loop comprises an electromagnetic stroke limit switch, a three-position four-way electromagnetic reversing valve, a controller, a hydraulic oil inlet and a hydraulic oil return port. The pressurizing fluid loop comprises a one-way valve, a hydraulic control one-way valve, a two-position two-way electromagnetic reversing valve, a pressurizing fluid inlet, a non-pressurizing-fluid outlet and a pressurizing fluid outlet. The multi-stage multipurpose hydraulic pressurizer can output high-pressure fluids, either water or hydraulic oil, with different pressurizing rates under the action of the multi-stage structure part, dispensing the need to change pressurizers.

IPC Classes  ?

• F15B 3/00 - Intensifiers or fluid-pressure converters, e.g. pressure exchangersConveying pressure from one fluid system to another, without contact between the fluids

Abstract

Provided are a controllable pressure jetting apparatus based on a hydraulic energy accumulator and a jetting method. The jetting apparatus comprises a pressure storage system, a pressure holding system, a sealing system and an injection system. The pressure storage system comprises a front half (4-2) of a pressure cylinder, an annular piston (5) and a middle connection body (7). The pressure holding system comprises an energy accumulator (2), a rear half (4-1) of a pressure cylinder, and a rear end cover (1). The sealing system comprises a hydraulic propulsion cylinder (8), a propulsion piston (9), a front end cover (10), a sealing tube (12), a thickened end part (14) and an expanding rubber tube (13). The jetting system comprises a hydraulic valve body (6) and a jetting gun tube (11). The jetting apparatus can quickly apply pressure to the bottom of a drilling hole in a hydraulic manner, so that rock is broken under tension, thereby improving the excavating efficiency of hard rock.

IPC Classes  ?

• E21C 37/08 - Devices with pistons, plungers, or the like pressed locally against the wall of the borehole

Abstract

Provided is a multi-stage multipurpose hydraulic pressurizer with a variable pressurization rate, comprising a multi-stage pressurizing structure part, a hydraulic oil loop, a control part of the hydraulic oil loop, a pressurizing fluid loop and a control part of the pressurizing fluid loop. A multi-stage pressurizing structure comprises a hydraulic cavity (C1), a first-stage pressurizing cavity (C2), a second-stage pressurizing cavity (C3) and a third-stage pressurizing cavity (C4). The hydraulic oil loop and the control part thereof comprise an electromagnetic stroke limiting switch, a three-position four-way electromagnetic reversing valve (10), a controller (11), a hydraulic oil inlet (P3) and a hydraulic oil return port (P4). The pressurizing fluid loop and the control part thereof comprise a one-way valve, a hydraulic control one-way valve, a two-position two-way electromagnetic reversing valve, a pressurizing fluid inlet (P1), a non-pressurizing-fluid outlet (P2) and a pressurizing fluid outlet (P5). According to the multi-stage multipurpose hydraulic pressurizer with a variable pressurization rate, high-pressure fluids, not only limited to water or hydraulic oil, with different pressurizing rates can be output while the pressurizer is not replaced under the action of the multi-stage controller, the using range and pressurizing environment of the pressurizer are enlarged, and the one-pressurizer multi-pressure and one-pressurizer multipurpose effects can be achieved.

IPC Classes  ?

• F15B 3/00 - Intensifiers or fluid-pressure converters, e.g. pressure exchangersConveying pressure from one fluid system to another, without contact between the fluids

Abstract

Disclosed is a coupling failure correlation modeling method for a key component of a deep well hoist under an incomplete information condition. The method includes the following steps: (1) collecting fault data samples, in different failure modes, of a key component of a hoist, and compiling statistics on statistical moment information randomly responded with by the failure modes under an incomplete information condition; (2) using a function approximation method to obtain edge probability distribution functions of the failure modes; (3) using a goodness-of-fit test criterion to analyze probability-related attributes between the failure modes, and determining optimal copula functions for describing different related attributes of part failures; and (4) combining the edge probability distribution functions and the optimal copula functions of the failure modes to establish a hybrid copula function model. According to the method, an accurate edge probability density function can be established under a small sample condition, and symmetry-related, upper tail-related and lower tail-related attributes, which may exist between failure modes, are considered, thereby improving the flexibility and applicability of coupling failure correlation modeling of a key component of an ultra-deep well hoist.

IPC Classes  ?

• G06F 17/50 - Computer-aided design

Abstract

An abrasion detection device for a slide bushing (1) of a wire rope guide in a vertical shaft comprises a plurality of FPC cable units (2), a plurality of voltage detection circuit units, a control system, and a data display device, wherein the plurality of FPC cable units (2) are respectively provided at two end surfaces of the slide bushing (1) of the wire rope guide in the vertical shaft. The plurality of FPC cable units (2) are wound around the periphery of a lacing hole of a wire rope (16) and are sequentially adhered to the surface of an end portion of the slide bushing (1) of the wire rope guide in the vertical shaft, so as to form a closed structure. Each of the FPC cable units (2) is respectively connected to one of the voltage detection circuit units. A signal input terminal of the control system forms a signal connection with the plurality of voltage detection circuit units. A signal output terminal of a control module is connected to a wireless transmission module via an output circuit. The data display device receives, via a data receiving module, data transmitted by the wireless transmission module. The FPC cable of the invention replaces conventional sensors used to perform abrasion detection, thereby achieving reliable and highly efficient operation.

IPC Classes  ?

• G01B 7/00 - Measuring arrangements characterised by the use of electric or magnetic techniques

Abstract

A scraper conveyor chain breakage real-time monitoring system comprises a plurality of scrapers (5), convergence nodes (3), data transmission nodes (8), and tension strain gauges (9). The tension strain gauge (9) is flat-fit to a flat chain ring (7) in an annular slot of a scraper chain. The scraper (5) has a cavity (12) at both ends. The data transmission nodes (8) are packaged in the cavities (12). The tension strain gauge (9) is connected to the data transmission node (8). The convergence nodes (3) are disposed on two sides of a machine head sprocket (2) or a machine tail sprocket (11). The monitoring method uses change of tension on two chains and the offset relationship between node positions at two ends of the same scraper as a chain breakage indicator, so as to accurately detect chain breakage on a scraper conveyor, enabling timely shutdown, adjustment, and replacement, and preventing serious accidents, damage to devices, and injuries on a production line.

IPC Classes  ?

• B65G 43/06 - Control devices, e.g. for safety, warning or fault-correcting interrupting the drive in case of driving-element breakageBraking or stopping loose load-carriers
• B65G 19/20 - Traction chains, ropes, or cables
• B65G 19/22 - Impellers, e.g. push-plates, scrapersGuiding means therefor

Abstract

An automatic height adjusting apparatus and method for a shearer based on advanced detection of a shearer seismic source. The apparatus comprises a shearer-side signal acquisition device, a workface-side signal acquisition device (2), and a height adjustment control module. The shearer-side signal acquisition device acquires a seismic source signal of a shearer (1), and resolves absolute orientation parameters of the shearer (1) in a mine coordinate system and geographic coordinates of upper and lower roller centers of the shearer (1). The workface-side signal acquisition device (2) acquires the seismic source signal of the shearer (1) after the same has been reflected by a wave impedance interface and resolves absolute orientation parameters of the body (2-1) in the absolute mine coordinate system. The height adjustment control module automatically adjusts, according to a received signal, the height of upper and lower rollers of the shearer (1).

IPC Classes  ?

• E21C 35/24 - Remote control specially adapted for machines for slitting or completely freeing the mineral
• E21C 31/08 - Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for adjusting parts of the machines
• E21C 25/06 - Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate

Abstract

A boring and positioning system for constructing a winding underpass comprises a boring module, an intelligent total station module, a reflective surface mechanism (2), a communication and control module, a strapdown inertial navigation module (1.2), a dual-axis inclinometer module, and a boring positioning prism module. The communication and control module, the strapdown inertial navigation module (1.2), the dual-axis inclinometer module, and the positioning prism module are provided at the boring module. The intelligent total station module is provided behind the boring module. The reflective surface mechanism (2) is positioned between the boring module and the intelligent total station module. The positioning system employs an integrated positioning method to perform, in real time, precise calculation to obtain a six-degree-of-freedom orientation parameter of a boring machine in an underpass.

IPC Classes  ?

• E21C 35/24 - Remote control specially adapted for machines for slitting or completely freeing the mineral

Abstract

The present invention discloses a wireless sensor node with a hierarchical protection structure, comprising two parts: a node hardware circuit and a node hierarchical protection structure. The node hardware circuit comprises a sensor module, a data processor module, and a wireless communication module, and the node hierarchical protection structure comprises a primary sealing protection structure and a secondary strength protection structure. The primary sealing protection structure comprises an ABS spherical inner shell, the data processor module and the wireless communication module are arranged in the ABS spherical inner shell, a gap in the ABS spherical inner shell is filled with EPE buffer foam, and the exterior of the ABS spherical inner shell is covered with a nano-aerogel insulation blanket flame-retardant heat-insulation layer. The secondary strength protection structure comprises a spherical nylon outer shell with a ventilating hole, a rubber shock absorber is connected between the spherical nylon outer shell and the ABS spherical inner shell for support, and the sensor module is arranged inside the spherical nylon outer shell. The node of the present invention can be deployed as a projectile, has good ability to adapt to disaster conditions, can effectively acquire environmental information and is low cost.

IPC Classes  ?

• H04W 88/02 - Terminal devices
• G01D 21/02 - Measuring two or more variables by means not covered by a single other subclass
• H04W 84/18 - Self-organising networks, e.g. ad hoc networks or sensor networks

Abstract

A method of sensing the absolute position and orientation of a coal mining machine (1). In a three-part mining-equipment set primarily composed of a coal mining machine (1), a scraper conveyor (2), and hydraulic supports (3), the absolute position and orientation of the coal mining machine (1) is sensed during work face stoping. In the method, a strapdown inertial navigation module is used for dead-reckoning sensing of the position and orientation of the machine; a laser transmission device (4), a laser reception device, and an intelligent total station (5) are used for laser sensing of the position and orientation of the machine; then, an optimal estimation algorithm is used for asynchronous fusion of the results from said two types of sensing in order to obtain the precise absolute position and orientation of the coal mining machine (1). In the present method, optimal estimation algorithms such as Kalman filtering are used for asynchronous fusion of two types of navigation information in order to obtain more precise absolute position and orientation parameters for a coal mining machine (1). The invention is highly precise, reliable, and provides the conditions for achieving the automated and intelligent operation of the coal mining machine (1).

IPC Classes  ?

• G01C 21/16 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigatedDead reckoning by integrating acceleration or speed, i.e. inertial navigation
• E21C 35/00 - Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups , or

Abstract

A wireless sensor node with a hierarchical protection structure is disclosed, comprising a node hardware circuit and a node hierarchical protection structure. The node hardware circuit comprises a sensor module, a data processor module and a wireless communication module. The node hierarchical protection structure comprises a primary sealed protection structure comprising an ABS spherical inner shell, and a secondary strengthened protection structure comprising a spherical nylon outer shell with vent holes. The data processor module and the wireless communication module are disposed in the ABS spherical inner shell; gaps in the ABS spherical inner shell are filled with EPE cushioning foam; a flame- retardant and thermal-insulating layer is covered on the outside of the ABS spherical inner shell. The spherical nylon outer shell and the ABS spherical inner shell are connected with each other through support of rubber dampers: and the sensor module is disposed in the spherical nylon outer shell.

IPC Classes  ?

• G01D 11/24 - Housings
• G01D 21/02 - Measuring two or more variables by means not covered by a single other subclass
• G01J 1/04 - Optical or mechanical part
• G01N 37/00 - Details not covered by any other group of this subclass
• G03B 17/02 - Bodies

Abstract

Disclosed are a scraper conveyer self-testing center trough device and a detection method. The device comprises a frame (18), a plate lifting conveyer (2), a horizontal conveyer (17), a loading hopper (1), an unloading hopper (5), and a sliding friction mechanism. A lining board (8) and an eccentric wheel motor are mounted in the sliding friction mechanism, wherein the eccentric wheel motor is slidably connected to a scraper (6) through a slide bar, the scraper (6) is disposed on the lining board (8), a flat capsule sensor (7) is disposed on the scraper (6), and a tension and pressing force sensor (12) is mounted on the slide bar. The self-testing center trough device of the present invention can simulate an impact friction wear action between a scraper of a scraper conveyer and a center trough, and measure in real time an impact force of materials falling on the scraper (6), and a friction force and a friction factor between the scraper (6) and the lining board (8); further, the materials can be continuously reused, so as to achieve a continuous impact loading of the materials, with a compact structure and a high degree of automation.

IPC Classes  ?

• B65G 19/30 - Troughs, channels, or conduits with supporting surface modified to facilitate movement of loads, e.g. friction-reducing devices
• B65G 43/00 - Control devices, e.g. for safety, warning or fault-correcting

Abstract

A boring machine absolute spatial position detection apparatus and method, formed by combining a strapdown inertial navigation position detection method and a visual position detection method. The strapdown inertial navigation position detection method is used to obtain position information of a cantilever-type boring machine main body (1) in real time, the visual position detection method is used to obtain position information of the cantilever-type boring machine main body (1) once at each time interval t, and an optimal estimation method is used to perform asynchronous fusion on the position information obtained by the two position detection methods, to obtain accurate position information, and also update initial values of the strapdown inertial navigation position detection method. When the laser image clarity obtained by the visual position detection method is lower than a set threshold value, the location of a laser image generating source is adjusted. The boring machine absolute spatial position detection apparatus and method are suitable for roadheader absolute spatial position detection, and are capable of detecting six degrees of freedom position state information of the boring machine main body (1) in real time. The apparatus and method are highly accurate and very reliable, and provide conditions for implementing automated, smart boring machine operations.

IPC Classes  ?

• G01C 21/16 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigatedDead reckoning by integrating acceleration or speed, i.e. inertial navigation
• G01C 21/20 - Instruments for performing navigational calculations

Abstract

A self-detection device for a middle trough of a scraper conveyor and a detection method is disclosed. The device comprises a frame, a baffle hoist conveyor. a horizontal conveyor, a loading hopper, an unloading hopper, and a sliding friction mechanism. A liner and an eccentric motor are mounted in the sliding friction mechanism. The eccentric motor is slidably connected to a scraper through a slide bar. The scraper is disposed on the liner, and an impact force sensor is disposed on the scraper. A pull-pressure sensor is mounted on the slide bar. The self- detection device for a middle trough can simulate the wear behavior from impact and friction between a scraper and a middle trough of a scraper conveyor, and can measure in real time an impact force applied to the scraper as materials fall and a frictional force between the scraper and the liner and a friction factor.

IPC Classes  ?

• B65G 43/02 - Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load- carriers, e.g. for interrupting the drive in the event of overheating
• B65G 19/28 - Troughs, channels, or conduits
• G01N 3/56 - Investigating resistance to wear or abrasion
• G01N 5/04 - Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder

Abstract

Provided is a single-drive bidirectional crawling pipeline cleaning robot, comprising a front machine body assembly (1), a transmission assembly (2) and a rear machine body assembly (3), wherein the transmission body (2) is driven by power, and by means of the transmission effect of a connecting rod mechanism, a gear mechanism and an equal-dwell cam mechanism, alternate contraction and support of the front machine body assembly (1) and the rear machine body assembly (3) in a radial direction are achieved, and the extension and retraction between the front machine body assembly (1) and the rear machine body assembly (3) in an axial direction are achieved, and synchronous rotation of a dredging knife flywheel is also achieved at the same time, such that a crawling movement of the robot in the forward and reverse directions of the pipeline and pipeline cleaning operation are achieved. The robot is stable, reliable, compact and feasible, achieves single-drive bidirectional crawling movement and pipeline cleaning in a pipeline with relatively great changes in the pipe diameter, and effectively improves the obstacle crossing ability and the adaptability to pipe diameter changes of the pipeline robot.

IPC Classes  ?

• B08B 9/051 - Cleaning the internal surfacesRemoval of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes the cleaning devices having motors for powering cleaning tools

Abstract

A complete strong supporting single drive two-way crawling type pipeline cleaning robot, comprising a front machine body component (1), a drive component (2) and a rear machine body component (3), wherein the drive component (2) is driven by one motive power; through the drive function of a connecting rod mechanism, a gear mechanism and a non-equal dwell cam mechanism, the front machine body component (1) and the rear machine body component (3) can realize a continuous strong supporting function during an overall radial alternate contracting and supporting process; and meanwhile the axial contraction between the front machine body component (1) and the rear machine body component (3) and the synchronous rotation of dredging cutters (1-2) are also realized. Therefore, full-process strong supporting and two-way crawling of the robot along a non-horizontal pipeline are realized; full-process continuous traction can be maintained; the stability and reliability of the walking process in the pipeline are effectively improved; and the cruising ability of the pipeline robot is enhanced.

IPC Classes  ?

• B08B 9/049 - Cleaning the internal surfacesRemoval of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes
• B08B 9/051 - Cleaning the internal surfacesRemoval of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes the cleaning devices having motors for powering cleaning tools

Abstract

Provided is a liquid viscous speed regulation device for starting a belt conveyor with a heavy load. An input shaft (1) is connected to an output shaft (25) through a spline cylinder (8), an inner friction disk group (7) and an outer friction disk group (12), the inner and outer friction disk groups (7, 12) are controlled respectively by an inner oil cylinder and an outer oil cylinder, and oil intake and oil return of the inner oil cylinder and the outer oil cylinder are automatically controlled by an oil intake valve core (20) and an oil return valve core (27). When the belt conveyor starts up, pressure oil enters the outer oil cylinder, pushing the outer friction disk group (12) to engage, so as to provide the torque required by the output shaft (25); and when the start-up is completed, the rotational speed of the output shaft (25) increases, under the action of a centrifugal force, the oil intake valve core (20) and the oil return valve core (27) move outwards, the pressure oil enters the inner oil cylinder, pushing the inner friction disk group (7) to engage, so as to provide the torque required by the output shaft (25), and at the same time, the oil returns to the outer oil cylinder, i.e. when the belt conveyor starts up, the outer friction disk group (12) provides a large torque required for start-up, and during normal operation, the inner friction disk group (7) provides less torque. The invention realises automatic switching between the different torques required for start-up and normal operation, and has a compact structure, reliable performance, low manufacturing price, and wide practicability.

IPC Classes  ?

• F16D 25/10 - Clutch systems with a plurality of fluid-actuated clutches

Abstract

Provided is a rock drilling, swelling and chiselling combined machine based on a high-pressure foam medium, which comprises: a mechanical device of the rock drilling, swelling and chiselling combined machine, a high-pressure foam generating and conveying system, and a hole-sealing device. The rock drilling, swelling and chiselling combined machine comprises a power device (1), an impact piston (21), an electric motor (17), a transmission gear group, an impact rotation drill bit (8), a drill rod (3), a drill hole sealing device (7), a high-pressure foam conveying chamber (4), the high-pressure foam generating and conveying system etc. The high-pressure foam generating and conveying system comprises a liquid pump (10), a gas pump (9), a liquid-gas mixer (11) and a supercharger (12), and can adjust a liquid-gas mixing ratio and convey pressure according to operating conditions of different rock hardnesses. The rock drilling, swelling and chiselling combined machine effectively solves the problems that the existing drilling-in rock drill has a low efficiency in the operations of drilling, sealing and swelling, and the process is complicated. The sealing and swelling errors caused by the drilling and sealing operations of the drilling-in rock drill on a working face are prevented, a continuous operation of the rock drilling, swelling and chiselling combined machine is achieved, and the operation efficiency of the drilling-in rock drill is effectively improved.

IPC Classes  ?

• E21C 37/06 - Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
• E21B 6/04 - Separate drives for percussion and rotation

Abstract

Provided are a system and method, based on machine vision and multi-sensor fusion, for automatic operation of a coal mining machine. The system comprises a main machine body of a coal mining machine, an automatic drill rod conveying system, and an automatic drill rod abutting system, wherein the automatic drill rod conveying system pushes a drill feed platform (5) to move along a tunnel by means of a drill feed hydraulic cylinder (9), adjusts, by means of a lifting hydraulic cylinder (11), the height, on the drill feed platform (5), of a drill rod (13) to be swapped , and realises the coaxial positioning of the drill rod (13) to be swapped and a working drill rod (6) by means of a displacement sensor (12) and a limiting switch (10); and the automatic drill rod abutting system adjusts the position and angle of a CCD binocular camera (15) via a telescopic mechanical arm (14), adjusts, by means of a rotating electric motor, the circumferential position, relative to the working drill rod (6), of the drill rod (13) to be swapped, and realises the abutting of the drill rod (13) to be swapped and the working drill rod (6) by means of visual positioning. The invention has relatively high degrees of integration and automation, can realise the automatic swapping and unattended operation of the drill rod in a working process, effectively improves the operation efficiency of coal mining, operates reliably and reduces costs.

IPC Classes  ?

• E21C 35/24 - Remote control specially adapted for machines for slitting or completely freeing the mineral
• E21C 27/22 - Mineral freed by means not involving slitting by rotary drills with breaking-down means, e.g. wedge-shaped drills
• E21B 19/18 - Connecting or disconnecting drill bit and drilling pipe