Disclosed in the present invention is a hoisting wire rope tension measurement method based on visual vibration frequency identification, the method comprising: processing an operation vibration image of a hoisting wire rope collected by an orthographic binocular camera, and, according to a vibration inherent frequency of the hoisting wire rope, calculating the tension borne thereby, thus completing real-time measurement of the tension of the hoisting wire rope. The present invention improves the anti-interference performance of an algorithm by means of oblique rectangle fitting, and increases the measurement precision of the algorithm by means of an absolute mean value data defective point cleaning method based on difference theory, thereby achieving a good measurement effect.
A hoist for transferred materials in an underground auxiliary transportation system and a method thereof. The hoist includes a hoist body, guiding plates mounted at two ends of the hoist body through bolts, twist locks mounted at four ends of the hoist body, a driving unit configured to drive twist locks to rotate, transmission assemblies configured to connect the twist locks with the driving unit, ejector pins configured to prevent the twist locks from rotating mistakenly, and a sensor configured to control the hoist to operate and provide protection safety.
B66C 1/66 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
The present invention provides a lifting appliance and method for an underground auxiliary transportation system to transfer materials. The lifting appliance comprises a lifting appliance body, guide plates mounted on two ends of the lifting appliance body by means of bolts, rotating locks mounted on four ends of the lifting appliance body, driving units for driving the rotating locks to rotate, a transmission assembly for connecting the rotating locks to the driving units, lifting pins used for preventing the rotating locks from rotating mistakenly, and sensors for controlling the lifting appliance to operate and protecting safety. The lifting appliance of the present invention can meet the ground-to-air and ground-to-ground transfer requirements of underground materials, the safety protection sensor can prevent misoperation of the lifting appliance, and the lifting appliance can adapt to standard containers of different sizes and has certain adaptability to narrow terrains, and can improve the stability of the whole mechanism in cooperation with a pull rope mechanism. Descending, unlocking, locking and ascending can be automatically achieved, thereby improving the working efficiency.
B66C 1/66 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
The present invention discloses a self-detection device for a liner plate of a hoisting container and a detection method. The device mainly includes: a frame, a baffle-type hoist conveyor, a horizontal conveyor, a loading hopper assembly, an unloading hopper assembly, a liner plate assembly, and a hoisting container system. The loading hopper assembly is fixedly mounted to an upper right end of the frame, the unloading hopper assembly is fixedly mounted to a lower left end of the frame, the hoisting container system is arranged on an upper left portion of the frame and above the unloading hopper assembly, and the liner plate assembly is provided inside the hoisting container system. A feed port of the baffle-type hoist conveyor is connected to an unloading port of the unloading hopper, and a discharge port thereof is joined to a loading port of a loading hopper; and a feed port of the horizontal conveyor is connected to an unloading port of the loading hopper, and a discharge port thereof is arranged at a feed port on an upper end of the hoisting container system. The self-detection liner plate can simulate an impact, friction, and wear behavior on a liner plate of a hoisting container in an actual loading process; and can measure in real time an impact force and friction force bored by the liner plate when a material falls down to impact on the liner plate. In addition, the self-detection liner plate enables continuous loading of materials.
The present invention discloses a device and method for adjusting tension of a steel wire rope of an ultra-deep vertical shaft at a hoisting-container-end. The device includes two stages of steel wire rope tension adjusting devices provided on a hoisting container, where a primary steel wire rope tension adjusting device includes left and right steel wire rope tension adjusting devices that are symmetrically arranged, and a secondary steel wire rope tension adjusting device is provided below the primary steel wire rope tension adjusting device. By use of two stages of steel wire rope tension adjusting devices, tension on four steel wire ropes can be adjusted to equalize the tension, thus meeting the requirement for tension equalization in a hoisting process. The four steel wire ropes are equally divided into two groups. Tension of two steel wire ropes is adjusted by rotating a primary drum around which the two steel wire ropes are wound, and then tension of the four steel wire ropes is adjusted by rotating a secondary drum around which the multiple steel wire ropes are wound, thus achieving a final purpose. The device of the present invention has a simple structure, and is conveniently mounted and easily detached. The tension is automatically adjusted by rotating the drums. This solution is novel and has wide application.
A large-tonnage coal dropping buffer skip for a mine is disclosed. A loading skip box (14) is installed at the top of a large-tonnage skip (12), a coal dropping buffer device (13) is arranged on the inner sidewall of the large-tonnage skip (12), and the coal dropping buffer device (13) includes: a frame (1) fixedly connected with the inner sidewall of the large-tonnage skip (12); a lining plate guide frame (6) connected with the frame (1) through shock absorbers (2), guide sliding grooves being formed in the lining plate guide frame (6); a lining plate support (4) slidably nested in the guide sliding grooves in the lining plate guide frame (6), hoisting lugs (9) for hoisting being arranged at the top end of the lining plate support (4); and a lining plate (5) detachably connected with the lining plate support (4) through fasteners (7).
B66B 17/26 - Applications of loading or unloading equipment for loading or unloading mining-hoist skips
F16F 3/02 - Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
F16F 15/06 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means with metal springs
7.
Cageway connecting device and connecting method thereof
A cageway connecting device and connecting method thereof is invented, the device includes a connecting cageway, an upper cannula, a lower cannula, two first steel angles, a fixed block, a pin boss and a fixed pin. The connecting cageway is set between the upper cageway and the lower cageway. The upper cannula is fixed in the connecting cageway. The lower cannula is fixed in the connecting cageway. The two first steel angles are fixed on the connecting cageway. The fixed block is fixed on the upper cannula. The pin boss is fixed on the lower cageway. The fixed pin is passed through the first pin bore and inserted into the second pin bore. The invention improve the accuracy of the initial installation of the cageway and facilitate the replacement of the cageway. The first cageway beam is determined and controllable.
A multiple-state health monitoring apparatus for critical components in a hoisting system includes a frame. The frame is a square structure formed by welding a plurality of rectangular steels. A steel wire rope is arranged around a periphery of the square structure. A power system, a friction-and-wear apparatus, a brake-and-wear apparatus, and a tensioning apparatus are sequentially mounted from left to right on a bottom layer of the square structure. A bearing signal collection system, a tension sensor, an excitation apparatus, and a steel-wire-rope image collection system are sequentially mounted from left to right on a top layer of the square structure. The steel wire rope sequentially passes through all the apparatuses or systems and is driven by the power system to perform circling. All the apparatuses or systems are used to monitor an operation status of the steel wire rope.
Disclosed is a large-tonnage coal falling buffering skip for a mine. A loading skip box (14) is installed at the top of a large-tonnage skip (12); a coal falling buffering device (13) is provided on a skip wall of the inner side of the large-tonnage skip (12); the coal falling buffering device (13) comprises a machine frame (1) fixedly connected to the skip wall of the inner side of the large-tonnage skip (12); a lining plate guide frame (6) that is connected to the machine frame (1) by means of a vibration absorber (2), and is provided with a guide sliding groove; a lining plate support (4) that is slidably nested in the guide sliding groove in the lining plate guide frame (6), and of which the top end is provided with a lifting lug (9) for lifting; and a lining plate (5) detachably connected to the lining plate support (4) by means of fasteners (7). According to the large-tonnage coal falling buffering skip, impact abrasion damage of the lining plate of the large-tonnage skip under the coal falling loading condition can be effectively relieved; quick dismounting and replacing of the damaged lining plate can be implemented; the service life of the large-tonnage skip is prolonged; and the production efficiency of the coal mine is improved.
An apparatus and a method for measuring a rotational angle of a sinking platform. The apparatus includes a sinking platform being a subject to be measured, suspension ropes and guide ropes connected to the sinking platform, a carriage assembled on the guide ropes, a gyroscope and a gyroscope signal radio transmitter mounted at an upper end of the carriage, and a tilt angle sensor and a radio signal reception processor mounted on the sinking platform. During running of the carriage, the gyroscope keeps measuring a pose of the carriage, and a measured signal is transmitted to the radio transmitter in a wired manner. The radio transmitter transmits a pose signal of the carriage during running to the radio signal reception processor in a wireless manner. A turning angle of the sinking platform in the y direction is accurately obtained by subtracting a pose of the carriage being located at the top of the guide ropes from a pose of the carriage being located at the bottom of the guide ropes. Tilt angles of the sinking platform in the x direction and the z direction can be measured in real time by using the tilt angle sensor. Therefore, rotational angles of the sinking platform in three directions can be conveniently and accurately measured.
A multi-state health monitoring device and monitoring method for critical components of a hoisting system, comprising a rack. The rack forms a square structure by welding multiple rectangular steels; a steel wire rope is provided around the periphery of the square structure; a power system, a friction wear device, a wear controlling device, and a tensioning device are sequentially mounted on a bottom layer of the square structure from left to right; a bearing signal acquiring system, a tension sensor, an excitation device, and a steel wire rope image acquiring system are sequentially mounted on a top layer of the square structure from left to right; the steel wire rope sequentially passes through all the devices or systems and circumferentially operates under the drive of the power system, so that an operating state of the steel wire rope is monitored by means of all the devices or systems. The multi-state health monitoring to the steel wire rope and a bearing in a mine hoisting system is achieved by simulating a fault situation of the steel wire rope and the bearing of the mine hoisting system and collecting related information by the health monitoring device and applying a depth learning method for intelligent fault diagnosis.
A self-detection device for a hoisting container liner plate and a detection method. The self-detection device for a hoisting container liner plate mainly comprises a rack (5), a baffle hoisting conveyor (2), a horizontal conveyor (16), a loading hopper assembly and an unloading hopper assembly (7), a liner plate assembly and a hoisting container system; the loading hopper assembly is mounted and fixed to an upper right end of the rack (5), the unloading hopper assembly (7) is mounted and fixed to a lower left end of the rack (5), the hoisting container system is provided on the upper left portion of the rack (5) and is above the unloading hopper (7), and the liner plate assembly is provided in the hoisting container system; a feed port of the baffle hoisting conveyor (2) receives an unloading port of the unloading hopper (7), a discharge port is connected to an inlet port of a loading hopper (1), a feed port of the horizontal conveyor receives an unloading port of the loading hopper (1), and a discharge port is provided at an upper end feed port of the hoisting container system. The self-detection device can simulate the impact, friction and abrasion behaviors of a hoisting container liner plate during actual loading, and can measure, in real time, the impact force and friction force applied on the container liner plate with a material falling impact, being able to achieve continuous material loading.
G01N 3/56 - Investigating resistance to wear or abrasion
G01N 3/02 - Investigating strength properties of solid materials by application of mechanical stress Details
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
The present invention discloses a reliability assessment method for a main shaft of a kilometer-deep well elevator taking multiple failure modes into account. Firstly, a parameterized three-dimensional model of the main shaft is established according to the structure and size of the main shaft; secondly, a sampling matrix of a random variable of the main shaft is established according to a probability attribute of the random variable, and the finite element method is used to solve intensity and rigidity responses of the main shaft under the sampling matrix; further, an explicit function between the responses and the random variable matrix is established by using a neural network method, wherein explicit performance functions are respectively established under intensity failure and rigidity failure modes according to the intensity and rigidity design criteria; subsequently, two types of failure probabilities are calculated by using the saddle point approximation method; and finally, a joint failure probability model between the two failure modes is constructed by means of the Clayton copula function, and the interval reliability method is used to solve for system reliability in a joint failure state. The method takes probability correlation between intensity failures and rigidity failures into account and can be used to more accurately and reasonably assess system reliability of an elevator main shaft.
The present invention discloses a reliability evaluation method for a hoist main shaft of a kilometer-deep mine considering multiple failure modes. First, a parametrical three-dimensional model of the main shaft is established according to physical dimensions of the main shaft. Then, a sampling matrix for random variables of the main shaft is established according to probability types of the random variables, and strength and stiffness responses of the main shaft are solved using the sampling matrix with a finite element method. Afterwards, an explicit function defining a relationship between the responses and the matrix for the random variables is established using a neural network approach, and explicit performance functions in a strength failure mode and in a stiffness failure mode are separately established according to strength and stiffness design criteria; and then, probabilities of these two failures are calculated by means of a saddlepoint approximation method. Finally, a joint failure probability model combining the two failure modes is established using a Clayton copula function, and system reliability in the case of a joint failure is solved using a bound reliability method. The present invention considers probability correlation between a strength failure and a stiffness failure, and can more accurately and reasonably evaluate system reliability of the hoist main shaft.
A tension adjusting device and method for steel wire ropes on a hoisting container of an ultra-deep vertical shaft, the device comprising two stages of steel wire rope tension adjusting devices arranged on a hoisting container (4). The first-stage steel wire rope tension adjusting device (1) comprises left and right steel wire rope tension adjusting devices which are symmetrically arranged, and the second-stage steel wire rope tension adjusting device (3) is arranged below the first-stage steel wire rope tension adjusting device (1). The tensile forces of the four steel wire ropes may be adjusted and balanced by means of the two stages of steel wire rope tension adjusting devices, and the requirement for tension balance in the hoisting process is thus met. The four steel wire ropes are divided in pairs, a first-stage winding drum on which two steel wire ropes are wound is rotated to adjust the tensile forces of the two steel wire ropes, and a second-stage winding drum on which the steel wire ropes are wound is further rotated to adjust the tensile forces of the four steel wire ropes, so as to achieve the final purpose. The tension adjusting device is simple in structure, convenient to mount and easy to disassemble; additionally, the tensile forces are adjusted automatically by rotating the winding drums, and thus the invention has a wide scope of application.
The present invention discloses a device and method for adjusting tension of a steel wire rope of an ultra-deep vertical shaft at a hoisting-container-end. The device includes two stages of steel wire rope tension adjusting devices provided on a hoisting container, where a primary steel wire rope tension adjusting device includes left and right steel wire rope tension adjusting devices that are symmetrically arranged, and a secondary steel wire rope tension adjusting device is provided below the primary steel wire rope tension adjusting device. By use of two stages of steel wire rope tension adjusting devices, tension on four steel wire ropes can be adjusted to equalize the tension, thus meeting the requirement for tension equalization in a hoisting process. The four steel wire ropes are equally divided into two groups. Tension of two steel wire ropes is adjusted by rotating a primary drum around which the two steel wire ropes are wound, and then tension of the four steel wire ropes is adjusted by rotating a secondary drum around which the multiple steel wire ropes are wound, thus achieving a final purpose. The device of the present invention has a simple structure, and is conveniently mounted and easily detached. The tension is automatically adjusted by rotating the drums. This solution is novel and has wide application.
A device and a method for measuring the rotation angles of a hanging scaffold. The device comprises: a measured object hanging scaffold (1); hanging ropes (2) and stabilizing ropes (3) connected to the hanging scaffold (1); a carriage (4) sleeved on the stabilizing ropes (3); a gyroscope (5) and a wireless signal transmitter (6) for the gyroscope (5) mounted at the upper end of the carriage (4); and an inclination angle sensor (7) and a wireless signal receiving processor (8) mounted on the hanging scaffold (1). In the operation process of the carriage (4), the gyroscope (5) measures, in real time, the pose of the carriage (4), and transmits the measurement signal, in a wired mode, to the wireless transmitter (6). The wireless transmitter (6) transmits, in a wireless mode, to the wireless signal receiving processor (8), the pose signal of the carriage (4) in the operation process. By subtracting the pose of the carriage (4), when the carriage is located at the bottoms of the stabilizing ropes (3), from the pose of the carriage when the carriage is located at the tops of the stabilizing ropes (3), the twist angle of the hanging scaffold (1) in the y-direction can be obtained accurately. The inclination angles of the hanging scaffold (1) in the x-direction and in the z-direction can be measured in real time by means of the inclination angle sensor (7), thus the rotation angles of the hanging scaffold (1) in the three directions can be measured easily, conveniently and accurately.
An adjustable intermediate disk body of large double-layer cage comprises cage columns, a main intermediate disk body, and a chain block and a connecting piece. An intermediate disk guide rail beam is arranged on the inner side of the cage columns, wedge bases are symmetrically arranged on the two sides of the lower part of the intermediate disk guide rail beam, a limited block with a bolt hole is arranged on the upper part of the intermediate disk guide rail beam, and an anti-disengaging plate is arranged on the intermediate disk guide rail beam. Intermediate disk wedge bodies, which match the wedge faces of the wedge bases and can only move vertically along the intermediate disk guide rail beams, are arranged on the two side faces of the main intermediate disk body, at positions corresponding to the intermediate disk guide rail beams; an intermediate disk guide wheel that is fitted with the intermediate disk guide rail beam and an intermediate disk guide wheel seat with a bolt hole are arranged on the upper part of the intermediate disk wedge body.
The present invention provides a large-tonnage slender externally powered rail-mounted unloading skip, comprising an upper bin body and a lower bin body that are respectively formed by an inner lining plate and an outer plate fixed together via a number of pin shafts, a self-locking gate, and a gate opening device. A loading opening and a coal baffle plate that is used to block coal when the coal is loaded are arranged on the upper part of the upper bin body, a self-locking gate composed of a sector gate plate and unloading rollers is arranged on the lower bin body, a coal chute is arranged on the lower part of the self-locking gate, the upper bin body and the lower bin body are connected together through flanged connection, and channel irons are welded around the walls of the upper bin body and lower bin body respectively; when the skip is at an unloading position, externally powered telescopic push rods push the unloading rollers to move in an unloading rail of the slide block, so that the self-locking gate is opened, and the coal is unloaded along a coal chute. With the reliable connection between the upper bin body and the lower bin body, effective and convenient fixing of the lining plate, and reliable opening of the gate, the skip can meet the production requirements of 10-million tonnage large-size shafts.
An apparatus and a method for opening and closing a skip exogenetic power curved rail-type gate. The apparatus comprises a hydraulic power unit (1) and a rack (5) arranged at a wellhead. A hydraulic cylinder (2) connected to oil inlet and outlet pipes of the hydraulic power unit (1) and a rolling trolley (3) are arranged on the rack (5). An end of a piston rod (2-2) of the hydraulic cylinder (2) is connected to the rolling trolley (3). Upper and lower guide rails (4) used for guiding the rolling trolley (3) are arranged on the rack (5). The hydraulic cylinder (2) pushes the rolling trolley (3) to make a translational motion along the fixed guide rails; thus a curved rail (3-1) on the rolling trolley (3) drives an unloading roller on a sector gate to slide, implementing opening and closing of the gate. A whole process imposes a small shock, is safe and reliable, and has high unloading efficiency. A structure thereof is compact. There are safety and reliability. An operation is convenient. Multiple types of tonnages are applicable.
A large-tonnage narrow and long external force type rail unloading skip bucket comprises an upper box body (1), a lower box body (2), a self-locking gate (6), and a gate opening apparatus. The upper box body (1) and the lower box body (2) are separately formed by fixedly connecting inner layer liner plates (10-1) and outer layer liner plates (10-2) into a whole by means of a plurality of pins (11). The upper portion of the upper box body (1) is provided with a loading port and a spillplate (4) for blocking coal in a process of coal loading. The lower box body (2) is provided with the self-locking gate (6) consisting of sector gate plates (6-1) and unloading idler wheels (6-2). The lower portion of the self-locking gate (6) is provided with a coal sliding apparatus (7). The upper box body (1) and the lower box body (2) are connected by means of a flange (5), and a steel channel (9) is welded to each of the outer wall of the upper box body (1) and the outer wall of the lower box body (2) in a surrounding manner. When the skip bucket is located at an unloading position, an external force telescopic push rod (13) pushes the unloading idler wheels (6-2) to move inside an unloading rail (12-1) of a sliding block (12) to open the self-locking gate (6), and the coal is unloaded along the coal sliding apparatus (7). Because the upper box body (1) and the lower box body (2) are reliably connected, the inner layer liner plates (10-1) are effectively and conveniently fixed and the self-locking gate (6) is reliably opened, the skip bucket can meet requirements of a large mine with a ten-million-ton scale.
Disclosed are a method and an apparatus for monitoring a displacement adjustment state of steel rope tension balancing of a multi-rope hoist. The apparatus mainly comprises a displacement sensor (2) mounted on a steel rope tension balancing device, a signal collector/emitter (4) used for storing and sending a displacement sensor (2) signal, a pressure altimeter (8) used for detecting a shaft depth at which a hoisting vessel (3) is located, and a wireless receiving processing system (6) provided at a wellhead of a shaft. The method involves collecting a displacement adjustment amount of the tension balancing device (1) connected to each hoisting steel rope (5) and a corresponding depth location of the hoisting vessel (3) in the course of upward and downward movement of the hoisting vessel (3) via the signal collector/emitter (4), receiving data and processing and judging the maximum displacement adjustment amount for measurements in the whole hoisting process and the tension balancing device corresponding thereto and the corresponding depth via the wireless receiving processing system (6), and giving a warning when the maximum adjustment displacement exceeds a pre-set adjustment threshold. The detection method thereof is simple and convenient, the structure is simple, measurement is accurate, and reliability is high, effectively reducing the problems of wasted time and wasted energy when making manual measurements.
Disclosed are a large-scale double-deck cage adjustable intermediate plate body and a method for adjusting and moving the same, comprising a cage upright post (1), a middle plate main body (2) and a manual chain hoist and a connector (4). A middle plate guide rail beam (1-1) is provided on a side wall in the cage upright post (1); two sides of the lower part of the middle plate guide rail beam (1-1) are symmetrically provided with a wedge-shaped seat (1-2); the upper part of the middle plate guide rail beam (1-1) is provided with a limiting block (1-4) having a latch hole; a loosening prevention plate (1-3) is provided on the middle plate guide rail beam (1-1); at a position corresponding to the middle plate guide rail beam (1-1), two side faces of the middle plate main body (2) are provided with a middle plate wedge-shaped body (2-1) fitting with a wedge face of the wedge-shaped seats (1-2) and only able to move up and down along the middle plate guide rail beam (1-1); and the upper part of the wedge-shaped body (2-1) is provided with a middle plate guide wheel (2-2) matching the middle plate guide rail beam (1-1), and a middle plate guide wheel seat (2-3) having a latch hole. Prior to loading large-scale equipment in a lower deck of a cage, the manual chain hoist is pulled to raise the middle plate main body (2) from the wedge-shaped seat (1-2), and a latch (3) is inserted in the middle plate guide wheel seat (2-3) latch hole and the limiting block (1-4) latch hole of the cage upright post (1) after centring. After the equipment is unloaded from the cage, the latch (3) is withdrawn and the middle plate main body (2) is lowered onto the wedge-shaped seat (1-2). The structure thereof is compact, and adjustment and movement are simple and convenient.
patents
