The present invention belongs to the technical field of welding. Disclosed is a deep-learning-based intelligent welding method for a high-altitude steel structure welding robot. A depth camera is carried on the welding robot in the present invention, and the depth camera captures an image and sends the captured image to an industrial computer for recognition and distance measurement; when a weld seam is detected, the robot is controlled to move to the position of the weld seam; accurate measurement and positioning of a position are performed by means of laser scanning; and finally, a robot arm is controlled to drive a welding gun to move to a designated position starting point. Spatial coordinates corresponding to points on a welding trajectory are calculated by means of the industrial computer, and the robot arm is controlled to drive a welding machine to move to a corresponding position, such that full-automatic image collection, motion trajectory planning and automatic welding operation are realized, thereby avoiding the labor cost of manual welding, and also reducing risks during manual operations. Moreover, the automatic welding method can be applied to steel beam cracks of different shapes, and has a wide application range.
A welding head adjusting mechanism, comprising a first horizontal adjusting assembly (4), a second horizontal adjusting assembly (5), a first vertical adjusting assembly (6), a second vertical adjusting assembly (7), and a welding head fixing assembly (8). The first horizontal adjusting assembly (4) adjusts a welding head to move in the horizontal X direction. The second horizontal adjusting assembly (5) adjusts the welding head to move in the horizontal Y direction. The first vertical adjusting assembly (6) adjusts the welding head to move in the vertical Z direction. The second vertical adjusting assembly (7) adjusts the welding head to move in the vertical Z direction or the horizontal X direction. The welding head fixing assembly (8) is connected to the second vertical adjusting assembly (7), and the first horizontal adjusting assembly (4), the second horizontal adjusting assembly (5), the first vertical adjusting assembly (6), and the second vertical adjusting assembly (7) each use a structure that a motor drives a lead screw to achieve welding head movement. Further involved are a high-altitude steel beam welding robot comprising the welding head adjusting mechanism, and a welding method. The welding head adjusting mechanism is small in size, ingenious in structure, safe and reliable, the robot is conveyed to a high-altitude steel beam for welding, the labor cost is reduced, the upper and lower surfaces of the steel beam can be welded respectively, and the robot welding efficiency is guaranteed.
The present invention relates to the field of concrete building materials. Disclosed are a multi-source waste residue-based 3D concrete printing material and a preparation method therefor. The multi-source waste residue-based 3D concrete printing material comprises the following raw materials in parts by weight: 10-80 parts of silicate cement, 20-70 parts of aluminate cement, 300-500 parts of a solid waste gelling material, 200-500 parts of a functionalized fine aggregate, 0.2-0.5 part of a water reducer, 0.1-0.5 part of a water retaining agent, 0.1-0.4 part of an interface activator, 0.4-0.8 part of a complexing agent, 0.2-3.0 parts of a surface film-forming agent, 0.2-0.6 part of a fiber, 2-8 parts of latex powder and 200-880 parts of water. A metal ion complex reacts with calcium hydroxide in cement and an interface activator to form a gelling component, and a complexing agent is synchronously released, and can be continuously used. A complexing agent, a metal ion complexing agent (metal ion complexing) and a complexing agent (metal ions release, a gelling material is formed, and the complexing agent is repeatedly used) are used to cyclically and continuously repair the pore structure and the flow channel inside the concrete, so that the printing material has continuous excellent late strength and weather resistance. The preparation method for the printing material is simple in process and easy to operate and implement.
Disclosed is an aerial smart spraying construction robot, related to the technical field of unmanned aerial vehicle applications. The aerial smart spraying construction robot of the present invention comprises an unmanned aerial vehicle body and also comprises a spraying apparatus and a power apparatus. The spraying apparatus is mounted on the unmanned aerial vehicle body and is used for spraying a construction paint. The power apparatus comprises a battery, a copper clad laminate, and a brush. The copper clad laminate is mounted on the unmanned aerial vehicle body and is electrically connected to the battery via the brush. The battery is detachably connected to the copper clad laminate. The employment of the technical solution of the present invention implements the integration of an aerial robot and an automatic spraying system, and facilitates battery swapping for an unmanned aerial vehicle, thus increasing the endurance thereof, and providing convenience for automated operations of construction spraying.
Disclosed in the present invention are a turnbuckle screw displacement tension automatic adjusting mechanism and a method for using same. The turnbuckle screw displacement tension automatic adjusting mechanism comprises an active driving mechanism, an adjusting mechanism, steel wire ropes, a tension sensor, and turnbuckle screws. The active driving mechanism is composed of a driving motor and a driving gear. The adjusting mechanism is composed of a wear-resistant sleeve, a tension adjusting sleeve, a driven gear, and a bearing. The present invention transmits power to the adjusting mechanism by means of the active driving mechanism, calculates the tension of the steel wire ropes according to the motor current and efficiency of the whole system, and rotates turnbuckles in the middles of the turnbuckle screws by means of the adjusting mechanism to conduct adjustment. When the step that the device adjusts the tension of the steel wire ropes is completed, the whole device can be removed from the turnbuckle screws without be retained on the steel wire ropes. The turnbuckle screw displacement tension automatic adjusting mechanism is easy and convenient to disassemble and assemble and improves the tension adjustment accuracy of the steel wire ropes.
The present invention relates to the technical field of safety production electronic information. Disclosed are an intelligent safety alarm system for construction operation in a steelmaking workshop and an alarm method thereof. The present invention comprises an alarm main control unit and two distance measurement sensing units. The alarm main control unit is installed in a construction operation area. The two distance measurement sensing units are installed near a feeding area and a discharging area, respectively. The alarm main control unit and the distance measurement sensing units are all designed in a portable manner and provided with high-temperature-resistant outer covers, thereby avoiding damage to equipment due to molten steel splashing, and can be flexibly installed according to construction requirements without modification to existing equipment or influence on the production process. Alarm information is transmitted by means of wireless communication, and an alarm is issued in various alarm modes by means of the alarm main control unit, thus effective alarming is performed and manpower consumption is reduced. Moreover, the construction operation area is provided with an image acquisition device bound to the alarm main control unit, so that if people are not evacuated in time in the construction operation area, a second alarm is issued when necessary, thereby ensuring that all the people can be evacuated.
MA ANSHAN MCC17 ENGINEERING TECHNOLOGY CO., LTD. (China)
Inventor
Qian, Yuandi
Yin, Wanyun
Jin, Rencai
Lei, Tuanjie
Hu, Yi
Wang, Xiaoping
Wang, Hui
Abstract
A waterproof and thermal insulation mortar for 3D-printed buildings, a preparation method therefor and an application thereof, the raw materials thereof comprising the following components by mass percentage: 50-80% composite cement, 10-20% of a filler, 5-21% hollow vitrified microbeads, 0.2-0.4% expanded vermiculite powder, 0.1-0.3% straw fiber, 0.05-0.4% imitation steel fiber, 1.8-5.3% of a composite penetrant, 0.2-2% of a curing agent, 0.1-0.5% of a defoamer, 0.3-0.7% redispersible latex powder, and 0.5-0.8% of a water reducing agent.
A pipe jacking and freezing system, comprising a circulating pipe channel, a freezing pipe (3), a standard pipe jack (4), a refrigerant delivery device (5), a temperature-sensing cable (6), a connection pipe channel (7), and a circulating system delivery device (8). Further provided is a construction method using the pipe jacking and freezing system. The method comprises: first excavating a start shaft, requiring N standard pipe jacks (4) provided in a dense and equidistant arrangement around the perimeter of the start shaft, and numbering the pipe jacks; then using a pushing force generated by a pushing device to overcome a friction between the pipe channel and the surrounding soil, pushing the standard pipe jack (4) into a soil layer according to a determined gradient, providing a freezing pipe (3) in odd-numbered pipe channels (3) and a circulating pipe channel in even-numbered pipe channels, and providing corresponding cables inside every pipe channel; using a connection device to connect the standard pipe jacks (4); and pushing the remaining pipe channels according to a sequence, removing the soil, connecting the pipe channels within the standard pipe jack (4) and connecting a corresponding pipeline to form a stable space, with a connection pipe channel (7) in the periphery providing an anchoring and supporting function.
A method for observing settlement and convergence of a tunnel, which relates to the field of methods for observing settlement and convergence of tunnels. The method for observing settlement and convergence of a tunnel comprises: 1) select a plurality of observation points on the vault and two sides of the vault of the tunnel, carry punching at the selected observation points, finally, fix hooks at the observation points by means of through holes and expansion screws; 2) fix, by means of screws, a plurality of signal transmitters (1) capable of automatically transmitting microwave signals on the hooks; 3) respectively select two reception points on walls on two sides of the tunnel close to the bottom, and fix receivers (2) for receiving signals at the reception points; and 4) a survey worker copies internal memory data of the receivers every day by means of a USB flash disk, brings the USB flash disk to a room and imports the data to a computer, and settlement and convergence results can be obtained after software processing. All-day and all-weather work can be realized, operation of workers in the observation process is not required, the signal transmitters and the receivers are hung on the walls of the tunnel and are not influenced by construction, position errors caused by each time of erection when a total station is used for observation are avoided, and the observation precision is improved.
G01B 15/06 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring the deformation in a solid
G01B 7/06 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness for measuring thickness
G01C 5/00 - Measuring heightMeasuring distances transverse to line of sightLevelling between separated pointsSurveyors' levels
10.
METHOD OF CONSTRUCTING STEEL CHIMNEY CYLINDER BY UPSIDE-DOWN MOUNTING
Disclosed is a method of constructing a steel chimney cylinder by upside-down mounting, comprising the following steps: firstly providing an annular joist (2) on the outside of a jacked-up steel chimney cylinder (1); then providing a hinged reinforcing apparatus (4) on an inner wall of the steel chimney cylinder (1); providing jacking columns (5) on the outside of the annular joist (2), providing a pulling apparatus (3) connected to the annular joist (2), lifting the annular joist (2) together with the steel chimney cylinder (1) six times, and completing the lifting of one steel chimney cylinder (1); and then making all the apparatuses return to the original position to perform the next lifting operation, and cyclically lifting in this way until the steel chimney cylinder (1) has been lifted to the required height.
A method for constructing a large raft foundation in a high-temperature environment. The method comprises: dividing a raft foundation into small blocks; adopting a groove-type construction joint in the middle of the thickness of a construction joint of the raft foundation; overlaying a layer of geotechnical cloth (3) on a plain concrete cushion layer (2); overlaying a layer of PVC waterproof roll material (4) on the geotechnical cloth (3); smearing a mortar levelling layer (5) on the PVC waterproof roll material (4); arranging a rubber water stop belt (10) at the construction joint; laying a horizontal grouting tube (8) and a vertical grouting tube (9) on the rubber water stop belt (10); and after the construction of the groove and waterproof design of the construction joint is finished, pouring small blocks of concrete, maintaining for 7 days, and then constructing on one side or the periphery of the poured small block of raft foundation in a comprehensively forwarding mode. According to the method, the use efficiency of machinery is improved, and the construction period is shortened.
E02D 31/02 - Protective arrangements for foundations or foundation structuresGround foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
E02D 15/02 - Handling of bulk concrete specially for foundation purposes
12.
METHOD OF LOADING AND UNLOADING SLENDER-TYPE PRESSURE CONNECTION STRIP AND APPARATUS THEREFOR
Disclosed is a method of loading and unloading a slender-type pressure connection strip. The method comprises the following steps: step one: selecting the model number and stationary position of cranes; step two: providing a hoisting sling; step three: getting equipment into a hoisting position; step four: selecting the model number of a hydraulic axle truck and setting the stationary position of each truck; and step five: unloading equipment and withdrawing the vehicle from the site. Further disclosed is an apparatus for loading and unloading a slender-type pressure connection strip. The apparatus comprises two cranes (1, 2), a hydraulic axle truck (10), hoisting ropes (3), hoisting slings (5), and round pins (9), wherein the cranes are connected to the hoisting slings via the hoisting ropes, and the hoisting slings are connected to the pressure connection strip via the hoisting ropes and the round pins. When in a hoisting state, the two cranes are symmetrically arranged along the pressure connecting strip; and when in an unloading state, one crane is arranged to form a "-" shape with the hydraulic axle truck and the other crane is arranged to form an inverted "V" shape with the hydraulic axle truck. The method and apparatus for loading and unloading can reduce the risk of deformation of or damage to equipment, reducing construction costs.
B66C 1/12 - Slings comprising chains, wires, ropes, or bandsNets
B66C 23/00 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes
B66C 23/18 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes specially adapted for use in particular locations or for particular purposes
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