21results about How to "Avoid job risk" patented technology

The invention discloses a clearance monitoring method and device for hoisting of a rotor of a hydro-generator, and relates to the field of hydro-generators, and the method comprises the following steps: moving the rotor to a position right above a stator machine pit, and preliminarily aligning the center of the rotor and the center of a stator; first distances between the stator and the rotor are collected, when any first distance is smaller than a preset value, hook falling is stopped, and the center of the rotor is adjusted until the rotor descends to the preset calibration position of the stator; and collecting a first distance and a second distance between the stator and the rotor, calculating a minimum real-time distance between the rotor and the stator, and when the minimum real-time distance is smaller than a preset value, adjusting the center of the rotor and then continuing to drop the hook until the rotor drops onto a rack brake in a stator machine pit. According to the method, the gap in the rotor hoisting process can be monitored, and the current minimum distance between the rotor and the stator is calculated according to the monitoring result, so that the judgment accuracy is enhanced, the manpower is greatly saved, and the operation risk of personnel is avoided.

The invention belongs to the field of distribution network defect elimination operation, and particularly relates to a distribution network defect elimination mechanical arm based on a motion capture technology and an operation method.The distribution network defect elimination mechanical arm comprises aerial operation equipment, a ground control terminal and motion capture equipment, and the aerial operation equipment comprises mobile auxiliary equipment, a fixed support and an intelligent mechanical arm body; the front end of the intelligent mechanical arm is provided with an aerial operation equipment main control chip, a 5G communication module, a radar obstacle avoidance module, a high-definition camera module and a front-end operation module, and the ground control terminal comprises a ground control terminal main control chip, a motion capture data acquisition module, a 5G communication module and a visual screen. Potential safety hazards during pole climbing operation can be effectively avoided, the problem that a hot-line work vehicle cannot perform full-coverage operation is solved, remote operation on aerial power grid equipment is truly achieved, and digital and intelligent upgrading of distribution network maintenance operation is promoted.

The utility model discloses a cutting plate grabbing device which comprises a main hanging beam, an opening and closing driving mechanism and a cutting plate holding claw which are sequentially arranged from top to bottom. The main lifting beam comprises a strip-shaped beam body which is horizontally arranged; the opening and closing driving mechanism comprises a worm lifting mechanism, a connecting beam and two connecting rod groups; the worm lifting mechanism is centrally fixed at the bottom of the main lifting beam, and a movable lead screw of the worm lifting mechanism is vertically downward and is connected with a horizontally arranged connecting beam; the two connecting rod sets are symmetrically arranged on the two end sides of the main beam body, and the top ends of two connecting rods of each connecting rod set are hinged to the end wall of the main beam body. The plate cutting holding claw is composed of two clamping claws symmetrically arranged below the two connecting rod sets, each clamping claw is composed of two crossed and hinged fold-line-shaped claw bodies, the top ends of the two fold-line-shaped claw bodies are hinged to the bottom ends of the two connecting rods on the same side, and the bottom ends of the two fold-line-shaped claw bodies are provided with oppositely-arranged hook bodies. The cut plate grabbing device is connected with hoisting equipment, so that the hoisting operation of bundled cut plates can be realized, manual operation assistance is not needed, the operation efficiency is high, and the risk is low.

The present invention discloses a gap monitoring method and device for the hoisting of a hydro-turbine generator rotor, and relates to the field of hydro-turbine generators. The method comprises: moving the rotor to the top of the stator pit, so that the center of the rotor and the center of the stator are initially aligned; collecting the first distance between the stator and the rotor, and when any of the first distances is less than a preset value, stopping the hook drop, and adjusting the center of the rotor until the rotor drops to the preset calibration position of the stator; collecting the first distance and the second distance between the stator and the rotor, and calculating the minimum real-time distance between the rotor and the stator, and when the minimum real-time distance is less than a preset value, adjusting the center of the rotor and then continuing to drop the hook until the rotor falls onto the frame brake in the stator pit. The method can monitor the gap during the rotor hoisting process, and calculate the current minimum distance between the rotor and the stator based on the monitoring results, which not only enhances the accuracy of the determination, but also greatly saves manpower and avoids the risk of personnel operation.

The utility model relates to a kind of overall hoisting system of large wind power equipment based on truss structure, and the system includes four overall truss structures being set in vertical ring around tower base, the connecting adjusting device with rotating and moving adjustment function, the slewing bearing mechanism with high-precision mark line, the laser positioning system for real-time acquisition position deviation, the level adjustment instrument for real-time monitoring horizontal state and the lifting device independently controllable;Through the collaborative work of each component, realize the synchronous lifting and high-precision installation of large wind power equipment from cabin, hub, blade to tower drum;Through five steps of early preparation, truss and component connection, lifting and attitude adjustment, high-altitude docking and unloading separation, significantly improve hoisting docking precision and operation efficiency, effectively avoid high-altitude operation risk, and enhance the wind resistance and adaptability of system in complex environment.

The utility model discloses a kind of automatic encircling gripping devices of brake disc assembly, comprising: frame, telescopic cylinder, fixed frame, two floating clamping jaws, bidirectional telescopic cylinder, guide rail is provided on frame;Telescopic cylinder is slidably connected on guide rail by sliding block, and is driven by driving mechanism;Fixed frame is fixedly connected on the piston rod of telescopic cylinder, and fixed frame is provided with slide rail along its length direction;Two floating clamping jaws are slidably connected on slide rail;Bidirectional telescopic cylinder is connected with two floating clamping jaws respectively by its main telescopic arm and vice telescopic arm, for driving two floating clamping jaws to move towards or to back movement.The technical scheme of the utility model uses automatic mechanism to assemble brake disc and hub, improves the efficiency of work.

The invention relates to the technical field of cable air detection devices, in particular to a high-precision flight hovering unmanned aerial vehicle mounted current detection device. Comprising an unmanned aerial vehicle, and a suspension bracket is hung below the unmanned aerial vehicle; a transmission assembly is arranged on one side of the suspension frame, two folding arms are symmetrically arranged on the transmission assembly, and the transmission assembly drives the folding arms to transversely move, rotate or fold; the cable detection device is mounted on the unmanned aerial vehicle, the detection requirements of cables with different heights can be met, meanwhile, the transmission assembly is matched with the folding arm, the cable detection device can be in butt joint with the cables in a hovering state, the operation difficulty is reduced, synchronous detection of two cables can be completed at a time when multiple cables are detected, the detection efficiency is effectively improved, and the detection cost is reduced. And the balance assembly can assist in keeping overall balance, so that the difficulty of butt joint operation is further reduced, and the overall stability is improved.

The application discloses a kind of mine blasting operation scheduling communication method and system, it is related to mine blasting safety communication and intelligent scheduling field, the specific steps of this method are as follows: relying on mine wireless network real-time monitoring, collect global communication environment data and locate blind area and supplement point node;Iterate and extract parameters of the working channel that meet the conditions;Build global communication link through beamforming;Generate dynamic key encryption instruction and transmission;Receive terminal back data, update monitoring set and adjust parameters, form link closed loop operation mechanism.The application collects global communication data through cooperative operation, builds complete communication link, solves the problem of signal coverage loss, realizes operation area communication dead angle, improves anti-interference and transmission stability;Implement dynamic encryption and closed loop adjustment, ensure the safety of instruction transmission, form adaptive closed loop mechanism, avoid operation risk, optimize operation mode, improve scheduling efficiency and safety control ability.

The invention discloses a solid acid online mixing device and an implementation method. The device comprises a small-sized acidification pump, the small-sized acidification pump is connected with an on-line stirring liquid preparation tank through a low-pressure pipeline, and the on-line stirring liquid preparation tank is connected with a solid acid pneumatic charging machine. The device is used in cooperation with an instant solid acid material with acetic acid and hydrofluoric acid as main raw materials, the solid acid material is sucked into the stirring liquid preparation tank through the solid acid pneumatic charging machine, water is added into the stirring liquid preparation tank for online dissolution preparation, the acid liquid is pumped into an oil field production well through the acidification pump, the solid acid online mixing step is repeated, and the solid acid online mixing process is completed. And the solid acid acidification construction operation is completed. According to the invention, high-speed online mixing and equipment miniaturization can be realized, and the device is suitable for limited operation spaces such as an offshore platform and the like; instant solid acid with the concentration ratio as high as 1 / 20 is adopted as a construction material, and the method has the high-efficiency acidification characteristics of the same time and equivalent effect as the existing acidification operation.

The lamp with the adjusting assembly comprises a hollow lamp post, a connecting block is arranged on one side of the hollow lamp post, a fixing block is fixedly installed at the end, away from the hollow lamp post, of the connecting block, the fixing block and the connecting block are perpendicularly distributed, a rotating mechanism is arranged on the fixing block, and the adjusting assembly is arranged on the rotating mechanism. A support block is arranged on one side of the fixing block, a cavity is formed in the support block, a dismounting mechanism is arranged on the support block, and a lifting mechanism is arranged on the hollow lamp post. By arranging the lifting mechanism and the rotating mechanism, when the lamp is installed, a worker does not need to climb the lamp post through equipment, and the working risk caused by high-place operation of the worker is avoided. And by arranging the detachable device, the working efficiency in the maintenance process when the lamp breaks down is improved, the working efficiency is improved, and manpower and material resources are saved.

The invention provides a forest carbon sequestration amount determination method, and relates to the technical field of carbon sequestration amount determination.The method comprises the steps that the basic length of a determination grid is calculated according to crown data and regional area, grid division is conducted on a forest region according to the basic length, and terrain distribution data and forest remote sensing data of the forest region are obtained; the method comprises the following steps: constructing a terrain feature set of each grid, obtaining an image above a forest, constructing a forest recognition model, recognizing features of the forest in each grid, forming continuous grids into a detection region, and classifying the detection region according to the terrain feature set and the forest feature set of each grid in the detection region. And calculating the sampling distance from the detection region to the boundary of the forest region, calculating an overall sampling coefficient according to the number of the detection regions in each cluster and the sampling distance, determining the size of the detection regions, and selecting a calculation mode of the carbon sink amount according to the sampling distance of the divided detection regions.

This utility model relates to the field of slope support technology, and more particularly to a slope support device for deep foundation pit excavation adjacent to desert areas. It includes an installation plate; and also includes slids formed on the left and right sides of the top of the installation plate. A sliding plate is slidably connected inside the slids, and a rotating shaft is connected to the front end of the sliding plate. A connecting block is rotatably connected to the outer end of the rotating shaft, and a support frame is connected to the end of the connecting block away from the rotating shaft. A traction frame is connected to the top of the sliding plate, and a roller is rotatably connected to the upper front side of the installation plate. The roller is movably connected to the support frame. A positioning groove is formed on the top of the installation plate. The sliding plate slides on the slids, driving the rotating shaft to move. This utility model, through the cooperation of the slids and sliding plates, allows the support frame to move forward along the slids and naturally droop through the rotating shaft. This enables positioning and fixing within a safe area of ​​the slope before commencing support work, reducing personnel operation in dangerous areas and improving the safety and efficiency of the support process.

The invention provides a sprinkling irrigation type system suitable for an agriculture and light complementary power station, the sprinkling irrigation type system comprises a plurality of sprinkling irrigation units, each sprinkling irrigation unit comprises a photovoltaic support, a monitoring system is arranged beside the photovoltaic support, a plurality of L-shaped bent pipes are arranged on the side edge of the photovoltaic support, one end of each L-shaped bent pipe is connected with a liquid feeding channel arranged in an inner cavity of the photovoltaic support, and the other end of each L-shaped bent pipe is connected with a liquid discharging channel arranged in the inner cavity of the photovoltaic support. The other end of the L-shaped bent pipe is provided with a remote control variable spray head, and the other end of the liquid feeding channel extends out of the bottom of the photovoltaic support and is connected with a spray irrigation source after being converged to a main channel. According to the invention, photovoltaic power generation and precise irrigation technologies are combined, so that the irrigation efficiency is improved, the operation cost is reduced, and the safety and reliability of the system are ensured.

The invention relates to a coiled tubing working machine self-elevating derrick device and a using method thereof, and the device comprises a derrick body which comprises a door-shaped main frame; the turnover lifting hydraulic cylinder is used for adjusting the dumping transportation posture and the vertical lifting posture of the derrick body; the lifting device comprises a lifting main frame, and a lifting driving part is used for driving the lifting main frame to ascend and descend along the door-shaped main frame through a gear and rack structure; the wellhead mounting frame comprises a bearing hanging seat, and the bearing hanging seat is provided with a multi-degree-of-freedom translation adjusting structure used for being connected with the injection head and enabling the injection head to translate and align to a wellhead; a dip angle adjusting hydraulic cylinder is hinged between the bearing hanging seat and the lifting device to adjust the dip angle of the injection head; the hydraulic control system comprises an electric proportional multi-way valve, and the electric proportional multi-way valve can be remotely operated through a wireless transmitter. Switching of two postures of dumping transportation and vertical operation of the coiled tubing injection head and lifting self-adaption to the height of a wellhead and translation adjustment centering during operation are achieved through wireless remote control, and the wellhead disassembly and assembly efficiency of coiled tubing operation is improved.

The utility model discloses a gearbox auxiliary box neutral gear state detection structure and a gearbox with a power takeoff, a pressure switch assembly penetrates through an auxiliary box body, so that the pressure switch assembly and a shifting fork shaft are vertically distributed, the shifting fork shaft can move under the driving of a piston according to different gears, and the shifting fork shaft is driven by the piston to move in the moving process. When the shifting fork shaft moves to a specific position, the shifting fork shaft extrudes the pressure switch assembly, so that the pressure switch assembly is in an extruded or non-extruded state along with continuous movement of the shifting fork shaft, when the pressure switch assembly is extruded, the pressure switch assembly is in a disconnected state, when the pressure switch assembly is not extruded, the pressure switch assembly is in a power-on state, and the outside can pass through the pressure switch assembly. The current gear state is judged according to the preset position of the shifting fork shaft, the gear state of the auxiliary box is accurately detected, the position of the piston of the auxiliary box is accurately reflected, whether the auxiliary box is in the neutral gear state or not is judged, and operation risks are avoided.

This invention provides a replaceable anti-tilt gantry crane fixing device, including a first clamp fixed to a longitudinal support rod and a second clamp fixed to a transverse support rod. The first clamp is connected to the second clamp via a corresponding connecting piece. A telescopic adjustment rod is detachably connected to the first clamp, used to adjust the position of the first clamp. A support mechanism is slidably connected to the free end of the telescopic adjustment rod, which is fixed to the longitudinal support rod. The telescopic adjustment rod includes a insert plate, an elastic rod, and a telescopic rod. Both ends of the elastic rod are connected to the insert plate and the telescopic rod, respectively. The insert plate is inserted into the first clamp, and the free end of the telescopic rod is slidably connected to the support mechanism. This invention uses a mechanical connection method to replace the traditional welding method, saving operation time, effectively avoiding the operational difficulties and risks caused by high welding difficulty, eliminating the need for manpower and resources for fixing and repair, and reducing the risk of high-altitude operations and gantry crane tilting and falling.

The utility model discloses a kind of quick hydraulic support pushing oil cylinder fixing pin devices under narrow space condition, it is related to hydraulic support pushing oil cylinder dismounting technical field, including hand pole, connecting rod and galvanized combined sleeve, hand pole one end below is equipped with connecting rod, connecting rod lower end detachably installed with galvanized combined sleeve, galvanized combined sleeve is composed of multiple hollow galvanized pipes of decreasing diameter;The utility model device can be realized by using the working principle of pushing oil cylinder, through the hollow galvanized pipe of pin taking device, the pin that needs to be taken out is placed in pin hole, pushing oil cylinder does retract action, pin is processed pin taking device, then the pin that needs to be taken out can be taken out through pin taking device, operating personnel also do not need to be taken fixed pin on pushing oil cylinder, solve the hidden danger of small space hammering operation, avoid the risk of personnel operation in the environment of narrow space of support pushing oil cylinder, to improve work efficiency, reduce risk.

The invention relates to the technical field of material cleaning, and particularly discloses a material cleaning trolley which comprises a chassis, a walking mechanism is arranged on the chassis, a roller brush is arranged in the middle of the bottom face of the chassis, a collecting box is arranged on the rear side of the chassis, a navigation mechanism is arranged on the chassis, the navigation mechanism, the walking mechanism and the roller brush are all electrically connected with a controller, and the controller is provided with a signal receiving and transmitting module. A conveying mechanism is arranged between the roller brush and the collecting box; the collecting box is arranged on the lifting mechanism; the lifting mechanism is arranged on the rear side of the chassis. Compared with the prior art, the roller brush sweeps accumulated materials, the accumulated materials are swept to the conveying mechanism, and the conveying mechanism conveys the accumulated materials to the collecting box; the collecting box can be driven by the lifting mechanism to be lifted, accumulated materials can be conveniently poured, the labor amount is reduced, and the operation risk is avoided.

The utility model relates to the technical field of blade polishing equipment, in particular to a pulping blade polishing device. Comprising a support, a grinding piece is arranged on the left side of the support, a longitudinal adjusting assembly is arranged on the support on one side of the grinding piece, and a transverse adjusting assembly is arranged on the right side of the support; the cutter table is connected with the longitudinal adjusting assembly in a sliding mode, and an extension plate connected with the transverse adjusting assembly in a sliding mode is arranged below the cutter table; the blade is driven to move back and forth through the longitudinal adjusting piece to achieve grinding operation, meanwhile, the blade can be quantitatively driven to move towards the grinding piece through the transverse adjusting piece, contact force is adjusted, grinding quality and grinding precision are guaranteed, and manual operation is replaced.

This utility model relates to a hydraulic system for automatic alarm and shutdown when encountering obstruction in coiled tubing, belonging to the field of coiled tubing operation technology. The technical solution is as follows: When the weight sensor on the injection head detects a sudden load change, and this load change reaches the initial set value, the weight sensor sends a pulse electrical signal to the solenoid directional valve. The main valve core of the solenoid directional valve reverses, and at this time, port 1 and port 2 of the solenoid directional valve are connected. Because port 2 of the solenoid directional valve is directly connected to the oil tank for unloading, the pressure difference acting on both sides of the three-position four-way servo valve is instantly relieved, and the three-position four-way servo valve returns to the neutral position. At this time, the output flow of the closed axial piston variable pump returns to 0, the speed of the injection head motor drops to 0, and the injection head motor automatically stops. This utility model does not require human intervention, avoiding operational losses caused by improper operation monitoring or failure to detect abnormal load fluctuations in a timely manner due to human negligence.

The application discloses a curved decorative aluminum plate installation error adjusting device and a construction method, and the device comprises a concrete connecting unit, a steel keel connecting unit and a control unit; the concrete connecting unit, the steel keel and the steel keel connecting unit are sequentially assembled into a curved decorative aluminum plate framework, and the sensor and the telescopic rod arranged in the concrete connecting unit and the steel keel connecting unit are used for intelligently adjusting the installation error of the curved decorative aluminum plate framework and the curved decorative aluminum plate, so that the operation personnel can solve the high-altitude installation construction problem of the curved decorative aluminum plate framework and solve the installation error adjusting construction problem of the curved decorative aluminum plate framework and the decorative aluminum plate, manual adjustment of the curved decorative aluminum plate in the high altitude is avoided, the safety of the operation personnel in the high-altitude construction operation is ensured, and the installation precision of the curved decorative aluminum plate framework and the curved decorative aluminum plate is effectively improved.