6086 results about "Winch" patented technology

The invention relates to a water-drop-shaped captive balloon high-altitude wind power generation system. The water-drop-shaped captive balloon and kite cloth carried by the water-drop-shaped captive balloon are used for generating lift force to drive a ground power generator to generate power. The lift force generation mechanism is that the windward side and the wind resistance are increased by adjusting the pitch angles of the aerostat and the bearing kite cloth, and the wind resistance is converted into cable tension to drive power generation. A V-shaped pulley expansion mode is adopted to uniformly distribute tension of main and auxiliary cables, so that bag damage caused by non-uniform stress in a posture adjusting process is avoided; the captive balloon is provided with an attitude controller, communicates with a ground control system through wireless data transmission, adjusts the take-up and pay-off speed of a main cable and an auxiliary cable to control the pitching angle to achieve lift force control, and greatly improves the power generation efficiency. The main cable power output winch drives a generator to generate electricity through a one-way bearing, and the input end is connected with a motor through a clutch to achieve cable recovery. The backpack kite cloth can be controlled to open and close through a small winch to increase and decrease wind resistance; lift force and wind resistance control is optimized, the power generation efficiency is improved, safety is enhanced, operation is simplified, and maintenance is convenient.

Disclosed is a multifunctional stable winch hook guide rail system. The system includes: a storage buckle; a guiding groove, where the guiding groove is formed on a front face of the storage buckle, a movable opening is formed on a back face of an inner wall of the guiding groove, and a winch hook is arranged inside the guiding groove; a hanging opening, where the hanging opening is located at a top of the winch hook at a position close to one end thereof, a side of an inner wall of the hanging opening is fixedly connected to a connector, an outer surface of the connector, through an insertion pin, is rotatably connected to a movable buckle. The winch hook can be easily tightened and securely locked in the guiding groove. The winch hook has a uniform and clean appearance and is used for rescue and heavy-duty towing tasks.

The invention provides a high and steep slope hanging net anchoring device and a construction method thereof, the high and steep slope hanging net anchoring device comprises a winch and a device main body, and the winch is connected with the device main body through a pull rope on the winch; the device body comprises a frame body, moving wheels are arranged at the four corners of the frame body, a net roll in linkage with the moving wheels is arranged between the two moving wheels located on the rear row, and an anchoring mechanism is arranged at the top of the frame body and anchors the net roll from the front of the frame body. Through cooperative work of the winch and the device body, meanwhile, the net roll is arranged between the rear row of moving wheels, laying work of the net piece can be completed through lowering of the device body, the flatness is ensured, meanwhile, net piece tensile deformation caused by traditional manual dragging can be effectively avoided, and the laying efficiency is improved by pausing lowering in the laying process. The anchoring mechanism is used for completing anchoring work of the meshes, cooperative work of automatic mesh hanging and anchoring is achieved, then construction risks are reduced, and meanwhile construction efficiency is improved.

The invention belongs to the technical field of automatic sailing of unmanned ships, and particularly relates to an automatic sailing temperature-salinity-depth profile observation system and method for mesoscale eddy prediction, the system is arranged on an unmanned ship and connected with an automatic retractable winch, and the system comprises a temperature-salinity-depth probe device arranged at the tail end of an A frame of the automatic retractable winch and used for retracting through the automatic retractable winch; lifting is realized, so that temperature, salinity and depth parameters of seawater with different profiles are measured, and key ocean data are provided for mesoscale eddy prediction; the data is transmitted to a mother ship / shore base end through a remote intelligent navigation control system; and the remote intelligent navigation control system is used for receiving various data and sending the data to the mother ship / shore base end, and controlling the driving process or task process of the automatic winding and unwinding winch, the temperature-salinity-depth probe device and the unmanned ship according to the instruction of the mother ship / shore base end. According to the invention, the laying and recovery of the temperature-salinity-depth profile measuring equipment can be controlled when the ship is sailing, and the laying and recovery of the sailing type temperature-salinity-depth profile measuring equipment can be carried out on the unmanned ship after upgrading and reconstruction.

The invention provides a quadrant switching smooth control method, device and equipment for an electro-hydrostatic system, and relates to the technical field of electro-hydraulic compound drive control. According to the method, sensor state information is acquired, a discretization state-space equation is established, a cost function is designed, improved sequential quadratic programming is called to solve the optimal control quantity, instructions are smoothly processed through a linear tracking differentiator, a reference value is calculated through a current distribution strategy and pressure feed-forward compensation, and cooperative impact resistance control is achieved through a PI controller and SVPWM. The response speed and stability of the electro-hydraulic compound system in the quadrant switching process can be remarkably improved, the problems of impact and torque overshoot are effectively restrained, the service life of equipment is prolonged, and the electro-hydraulic compound system is suitable for high-performance requirement scenes under complex working conditions such as electric loaders, excavators and winches.

The invention discloses a dual-mode dynamic cooperative control method and system based on pulling of a mooring line. The method comprises the steps that displacement electric signals are collected through double potentiometers; a Z-axis PWM signal is generated based on the displacement electric signal through a PWM signal generator; an XY-axis PWM signal is generated through the included angle difference between an XY rocker on the unmanned aerial vehicle and the mooring line; the Z-axis PWM signal is divided into two paths, one path is transmitted to a capstan electronic speed controller, and the other path is transmitted to the unmanned aerial vehicle and is combined with the X-axis PWM signal and the Y-axis PWM signal to form a three-dimensional control signal; setting a remote control signal and a winch potentiometer signal as well as a three-dimensional control signal and a winch manual signal as a first linkage group and a second linkage group respectively; when the first linkage group is switched on and the second linkage group is switched off, the unmanned aerial vehicle enters a first control mode; and when the second linkage group is switched on and the first linkage group is switched off, the unmanned aerial vehicle enters a second control mode. The method is used for solving the technical problems of single control mode, insufficient man-machine collaboration, poor environmental interference adaptability and limited control precision existing in traditional mooring unmanned aerial vehicle control.

The invention relates to a floating platform for mechanically cleaning marine organisms. The floating platform integrates a floating body platform, a crane, a net bag cleaning device, a flat net cleaning device, a garbage collecting net bag, a power device and the like. The net bag cleaning device and the flat net cleaning device are used for cleaning sundries of the intercepting net bag and the plane intercepting net respectively, the sundries are rapidly and effectively conveyed to the garbage collecting net bag in a suction mode, and follow-up unified treatment and transportation are facilitated. The platform is provided with a hydraulic winch and a cable, and movement flexibility and stability are enhanced. The hydraulic winch quickly adjusts the position of the platform by winding and unwinding the cable to adapt to different operation scenes, and the underwater anchor block provides a reliable anchoring point for the cable to prevent the platform from drifting. Besides, the platform is provided with a pipe reeling device, the releasing length of an operation pipeline can be accurately controlled, smooth extension and orderly retraction of the pipeline are ensured, adaptability and flexibility are enhanced, and the floating platform for mechanically cleaning the marine organisms has the advantages of being efficient, stable and flexible and can effectively meet various complex environments and cleaning requirements.

The utility model discloses a full-rotation hoisting pile driver for an offshore ship. The full-rotation hoisting pile driver comprises a full-rotation hoisting device and a pile driving device, the full-rotation lifting device comprises a base, a rotation bearing, a rotation chassis, a propeller strut and an arm support. The base is connected with the rotary chassis through the rotary bearing; the propeller strut is arranged on the rotary chassis; the lower end of the arm frame is movably connected with the propeller strut, and the propeller strut is wound with the arm frame through a steel wire rope; the piling device comprises a pile frame, a fork frame and a winding mechanism; the pile frame is connected with the upper end of the arm frame through a sliding shoe; one end of the fork frame is movably connected with the pile frame, and the other end of the fork frame is movably connected with the propeller strut; and the platform on the pile frame is connected with the corresponding winch in the machine room through the winding mechanism. According to the utility model, the full-circle slewing crane and the piling system are effectively combined, so that the piling requirements of straight piles and inclined piles can be met without frequent ship moving and positioning.

The invention relates to a loading adjustment method, device and equipment of a railway intelligent loading system, and relates to the technical field of loading, the method, device and equipment combine a time sequence prediction model and PID control for the first time, update historical parameter data in real time, update a PID controller in real time, adjust the rotating speed of a winch so as to adjust the traction speed of a carriage, and improve the traction speed of the carriage. When it is predicted that the coal in the chute is reduced, the winch is controlled to decrease the rotating speed, the traction speed of the carriage is decreased, and thus the coal in the chute waits to be supplemented; when it is predicted that the coal in the chute is increased, it shows that the coal in the coal chute is supplemented, the winch is controlled to increase the rotating speed, and the carriage traction speed is increased; through real-time control, when the coal material is reduced, the traction speed of the carriage is reduced in advance, the phenomenon of frequent material shortage is avoided, secondary material supplementing is not needed, the loading continuity is improved, and the loading efficiency is guaranteed.

The invention discloses a marine winch brake device, which relates to the technical field of winches, and comprises an outer shell, a movable shell, a brake mechanism, a pinion, a bull gear, a multi-stage buffer mechanism, a locking mechanism, a clamping mechanism and a connecting shaft, the piston is pushed through the oil cylinder, power is transmitted through hydraulic oil, the brake block is driven to brake the brake disc, primary braking of the winch main shaft is achieved, and the braking mode is efficient and reliable; the wear-resistant anti-skid layers are arranged on the opposite faces of the brake blocks, friction force is effectively increased, the braking effect is improved, and the stability of the braking process is guaranteed; the tooth grooves in the outer circle face of the movable shell are matched with the movable clamping teeth, when the braking resistance is increased, the movable clamping teeth and the tooth grooves are indirectly separated for braking, and the braking performance is further optimized; the large gear is used for driving the multi-stage buffering mechanism to work, oil in the oil storage cavity is pumped into the buffering oil cavity through the hydraulic pump for buffering and energy absorption, winch damage caused by braking is avoided, and the service life of the winch is prolonged.

The invention discloses a liftable floating bottom structure device suitable for a deepwater experiment, and relates to the technical field of deepwater experiment pools. Comprising a floating bottom body, a lifting mechanism, a jacking device and a distributed detachable platform, each lifting mechanism comprises a winch, a steering pulley and a steel wire rope, one end of the steel wire rope is connected with the winch, and the other end of the steel wire rope bypasses the steering pulley located at the bottom of the deepwater experiment pool and is connected with the floating bottom body; the jacking device comprises an air cylinder, a connecting shaft, a guide wheel and a base, the air cylinder located on the base is connected with the guide wheel through the connecting shaft, and the guide wheel is connected with the guide sliding groove of the floating bottom body in a clamped mode. The distributed detachable platform is laid on the floating bottom body through the connecting support. The floating bottom device has the capability of performing experimental simulation on deepwater, shallow water and land structures at the same time, the working efficiency is improved, the labor cost is reduced, and the experimental requirements of a deepwater experimental pool model are better met.

The invention relates to the technical field of bridge engineering construction, in particular to a bridge girder hoisting system and a positioning method.The system collects position information in real time through Beidou positioning terminals of all hoisting points on a hoisting frame, cable force is monitored through pin shaft type force sensors, and after the position information is processed through a Beidou differential service system and a control center, the cable force is transmitted to a main girder hoisting system; and the winch is regulated and controlled to act and early warn abnormity. The positioning method comprises the steps of equipment installation, data acquisition, coordinate calculation, data processing and intelligent regulation and control, millimeter-level positioning achieved through Beidou difference, and lifting point height difference control through double-cable force monitoring and closed-loop control. The invention aims to solve the problems of unbalanced components and potential safety hazards caused by low measurement precision, asynchronous hoisting point displacement and large cable force monitoring error in traditional bridge girder hoisting.

The utility model discloses an unmanned tower-climbing maintenance device for an overhead transmission line, which comprises an unmanned aerial vehicle, a pulley is hoisted below the unmanned aerial vehicle, the pulley is connected with a maintenance robot through a lifting rope, and the other end of the lifting rope is also connected with a winch fixed on the ground; the maintenance robot comprises a rack, a mechanical arm is arranged on the side face of the rack, a bolt screwing device is arranged at the end of the mechanical arm, and a detection sensor set is further arranged on the mechanical arm. A lifting rope fixing wheel is arranged in the middle of the upper surface of the rack; walking wheel assemblies are further arranged at the two ends of the upper surface of the rack, and a lifting type anti-falling frame is arranged below the walking wheel assemblies. According to the utility model, the purpose of power transmission line maintenance can be realized when no person climbs the tower.

The invention discloses a system for lowering and recovering a hydraulic pipe of an underwater blowout preventer, which comprises a winch drum, a driving assembly and a bearing seat are respectively arranged on shafts at two ends of the winch drum, the driving assembly is used for driving the winch drum to rotate, and the bearing seat is used for supporting the winch drum; a replaceable chain wheel and a hydraulic slip ring are sequentially mounted on the projecting shaft on the other side of the bearing seat, and the replaceable chain wheel is connected with a cable arrangement device through a chain; a hydraulic pipe of the underwater blowout preventer is led into the winch roller through the hydraulic sliding ring, then led to the cable arrangement device through the winch roller and finally led to the underwater blowout preventer through the cable arrangement device, and the cable arrangement device is used for enabling the hydraulic pipe to be arranged in order along the winch roller. The driving assembly is connected with a pneumatic control system which is used for controlling the driving assembly to drive the winch drum. According to the system, hydraulic pipes with different diameters can be automatically collected and released, the heat dissipation effect is good in the collecting and releasing process, and serious heating of the hydraulic pipes cannot be caused.

The invention provides an intelligent emergency unmanned aerial vehicle logistics lifting device and method. The lifting device comprises a cable descending winch system and a damping balance frame. The damping balance frame comprises an upper mounting frame and a lower mounting frame which are oppositely arranged up and down, the upper mounting frame and the lower mounting frame are connected through a telescopic damping mechanism, the telescopic damping mechanism comprises at least three telescopic damping units, the three telescopic damping units are uniformly distributed, and the two ends of each telescopic damping unit are movably connected with the upper mounting frame and the lower mounting frame respectively; and the cable descending winch system is fixedly mounted on the lower mounting frame. The three telescopic damping units not only can bear the load of the suspended object, but also can enable the suspended object to be finally transmitted to the three telescopic damping units no matter which horizontal direction deflection force is applied to the suspended object, so that the suspended object is located on the course axis of the intelligent emergency unmanned aerial vehicle as far as possible and can better adapt to external disturbance; therefore, the self-balance of the hoisted object is realized, and the unmanned aerial vehicle is kept stable in the transportation operation process.

The utility model provides a control hydraulic system of a winch, which comprises a first cartridge valve and a second cartridge valve, an A port of the first cartridge valve is connected with a first oil return port of an oil tank, a B port of the first cartridge valve is connected with a second port of a motor, an A port of the second cartridge valve is connected with a second oil return port of the oil tank, and a B end of the second cartridge valve is connected with a second port of the motor; a first port of the motor is connected with a first oil outlet and a second oil outlet of the oil tank, the first oil outlet is further connected with the control end of the second cartridge valve, and the second oil outlet is further connected with the control end of the first cartridge valve. A first oil outlet of the oil tank is connected with the control end of the second cartridge valve, and a second oil outlet is connected with the control end of the first cartridge valve; the first oil return opening is further connected with the control end of the second cartridge valve, and the second oil return opening is further connected with the control end of the first cartridge valve. The oil way is simple in structure, and the speed of the motor can be adjusted only through a simple control valve.

A winch hydraulic control system includes a hydraulic oil tank, a hydraulic pump, and an electric motor. The hydraulic pump's oil inlet is connected to the hydraulic oil tank, the electric motor is connected to the hydraulic pump, and the hydraulic pump's oil outlet is connected to both port P of the main reversing valve assembly and port P of the control valve assembly. Ports A and B of the main reversing valve assembly are connected to port A of the first shuttle valve, port A of the balancing valve assembly, and port B of the control valve assembly, respectively. Port X is connected to port B of the second solenoid reversing valve. Ports B and C of the first shuttle valve are connected to port B of the balancing valve assembly and port B of the second shuttle valve, respectively. A third pressure reducing valve is connected in parallel with the second solenoid valve. Port P of the second solenoid reversing valve is connected to port X of the control valve assembly, port A of the second shuttle valve, and port SP of the balancing valve assembly. Port C of the second shuttle valve is connected to the rod chamber of the brake. The brake is connected to the hydraulic motor, and the oil outlet of the control valve assembly is connected to the oil inlet of the balancing valve assembly. This design can maintain constant wire rope tension and stable operation.

The invention discloses a self-climbing module of a specialized robot. The self-climbing module comprises an irradiation-resistant shell, an adsorption device and a rope climbing device, a propeller device is mounted on the outer side wall of the radiation-resistant shell; the adsorption device comprises a gas control system and a suction cup assembly, the suction cup assembly is installed on the outer side wall, away from the propeller device, of the irradiation-resistant shell, the gas control system is installed in the irradiation-resistant shell, and the gas control system communicates with the suction cup assembly; the rope climbing device comprises a driving assembly, a positioning guide wheel set and a rope coiling winch. The driving assembly is installed in the irradiation-resistant shell, the rope coiling winch is installed at the output end of the driving assembly, and the positioning guide wheel set is rotationally connected into the irradiation-resistant shell. Wherein a traction rope is wound on the rope coiling winch and the positioning guide wheel group. The robot can realize high-precision climbing, positioning and hovering capabilities, can be stably adsorbed on the surface of a wall body in a high-radiation and high-risk environment, and provides efficient and reliable technical support for wall body repairing operation in a nuclear environment.

The invention discloses a pneumatic horizontal dock gate untwisting maintenance method which comprises the following steps: S1, a preparation stage: a tidal bulkhead and a seaport seal hole form a closed left cabin and a closed right cabin, an air pipeline and a plurality of groups of bollards are connected to a B surface of a dock gate, two groups of floating cranes are prepared, and temporary winches are mounted at the head parts of the floating cranes; s2, degumming: utilizing two groups of floating cranes to hook the dock gate and take cables, enabling the floating cranes to abut against the dock gate in a T-shaped mode, injecting water into the dry dock to enable the dock gate to lie flat, and lifting the dock gate through the cooperation of the two groups of floating cranes to realize untwisting and floating; and S3, dock gate docking maintenance: two tugs are adopted to pull the front and back cables of the dock gate end to end, and the dock gate is dragged to be docked for maintenance. A sling and an air pipeline are installed at one end of the dock gate, the other end of the dock gate is connected with a tug, dock gate reinstallation is basically a twist-off reverse operation process, and the dock gate reinstallation comprises the steps of tidal bulkhead / seaport hole sealing, air pipeline connection and bollard installation on the B face of the dock gate. The safety of the dock gate in the dismantling and reinstalling process can be guaranteed.

The utility model provides a manual overload protection system which comprises an oil tank, a pilot overflow valve, a first switch valve, a motor and a first control valve group, a hydraulic pump is arranged on the oil tank and connected with a first port of the motor through an oil inlet pipeline, and a second port of the motor is connected with the oil tank through an oil return pipeline. A pilot-operated overflow valve is arranged between the oil inlet pipeline and the oil return pipeline, the oil inlet end of the pilot-operated overflow valve is connected with the oil inlet pipeline, and the oil outlet end of the pilot-operated overflow valve is connected with the oil return pipeline; the first control valve group comprises a first control switch valve, a first control reversing valve and a first control overflow valve; by means of the structure, under the emergency condition, the adjusting pressure of the overflow valve can be adjusted and relieved, and therefore the winch is controlled to quickly loosen the steel wire rope to achieve emergency rope abandoning.

The utility model relates to a light large-span wave compensation type seaborne lightering device which comprises a mechanical body, a hydraulic system and an electric control system, and the mechanical body comprises a container type base, an anti-swing base assembly, a rotary tower body assembly, an arm frame assembly, a working basket assembly, a winding and unwinding winch assembly and a variable-amplitude oil cylinder. The container type base is connected with a ship body base, and the anti-swing base assembly is connected with the container type base through a fastener and a thrust block. The slewing tower body assembly is connected with the anti-swing base assembly through a slewing support; the arm support assembly is connected with the slewing tower body assembly through a variable-amplitude oil cylinder and a pin shaft assembly; the working basket assembly is connected with the arm support assembly through a variable-amplitude oil cylinder and a pin shaft assembly; the winding and unwinding winch assembly is installed at the lower end of the boom assembly. The hydraulic system is connected with the anti-swing base assembly, the rotary tower body assembly, the arm frame assembly, the working basket assembly, the winding and unwinding winch assembly and the variable-amplitude oil cylinder. The electric control system is connected with the hydraulic system. The maritime lightering device has high environment self-adaptive capacity and high reliability.

The utility model provides an unloading hydraulic system which comprises a hydraulic pump station and a winch control system, the hydraulic pump station supplies oil to the winch control system, the winch control system drives a motor to rotate, and the winch control system comprises a first middle-position unloading valve and a first operating valve. An oil outlet of the hydraulic pump station is connected with the P end of the first operating valve through a first oil outlet pipeline, the T end of the first operating valve is connected with an oil return opening of the hydraulic pump station through a first oil return pipeline, the A end of the first operating valve is connected with a first port of the motor, and the B end of the first operating valve is connected with a second port of the motor. A first middle-position unloading valve is arranged between the first oil inlet pipeline and the first oil return pipeline; by means of the structure, when the winch is standby, oil supplied by the hydraulic pump station can be unloaded and flow back to the oil tank, and therefore it is guaranteed that an oil way of the hydraulic system can circulate at low pressure, and energy consumption of the hydraulic system is small.

The invention discloses a low-power-consumption winch sensor based on a tunneling magnetoresistance effect. The low-power-consumption winch sensor comprises a measurement module, a signal conversion unit, a shell, a mandrel, a magnetic rotary disc and a detection assembly. The magnetic turntable and the mandrel are connected and rotate synchronously, the detection assembly comprises a TMR sensing element and N magnets, and the magnetic turntable is provided with mounting blind holes for embedding the magnets; the TMR sensing element is arranged on the shell and comprises a mounting plate and two sensing units, the magnetic domain directions of the two sensing units are perpendicular to the rotation axis, magnetic resistance signals of the two sensing units are converted through the signal conversion unit and input into the measuring module, the horizontal distance between the centers of the two sensing units and the magnet and the rotation axis is R, and the center distance L of the two sensing units is smaller than R * sin (180 degrees / N); the sensor is based on the TMR tunneling magnetoresistance effect, is high in detection sensitivity and low in energy consumption, outputs square wave signals with phase differences, can be used for a measurement module to accurately analyze and calculate the rotating speed and the rotating direction of a winch roller, is simple in overall structure, small in radial size and easy to install, and the installation precision is controlled.

The invention discloses an elbow upper limiter mounting structure for a trailing suction dredger, and belongs to the technical field of dredgers. An elbow upper limiter mounting structure for a trailing suction dredger comprises a supporting plate fixedly arranged on a ship support, the supporting plate comprises a lower supporting plate and an upper supporting plate, a guide rod is arranged between the lower supporting plate and the upper supporting plate, a mounting seat is slidably connected to the outer side of the guide rod, and a hoop is connected to the mounting seat through a bolt. A sensor body is arranged between the hoop and the mounting base, a positioning assembly is arranged on the mounting base, a positioning groove matched with the positioning assembly is formed in the ship support, and the positioning groove is formed in the lower side of a ship winch; according to the invention, the phenomena that the sensor cannot sense and is stuck are conveniently reduced and eliminated, the time for personnel to go to the site for inspection treatment and repair is reduced, the time utilization rate is increased, the dredging time is increased, meanwhile, the arrangement of personnel specially going to the site for treatment is also cancelled, the manpower use efficiency is improved, and the manpower cost is reduced.

The utility model discloses a water depth adjusting device of a test pool, and relates to the technical field of deepwater test pools. Comprising a floating bottom body, a lifting mechanism, a jacking device and a distributed detachable platform, each lifting mechanism comprises a winch, a steering pulley and a steel wire rope, one end of the steel wire rope is connected with the winch, and the other end of the steel wire rope bypasses the steering pulley at the bottom of the deepwater experiment pool and is connected with the floating bottom body; the jacking device comprises an air cylinder, a connecting shaft, a guide wheel and a base, the air cylinder located on the base is connected with the guide wheel through the connecting shaft, and the guide wheel is connected with the guide sliding groove of the floating bottom body in a clamped mode; the jacking devices are symmetrically arranged on the two sides of the floating bottom body. The distributed detachable platform is laid on the floating bottom body through the connecting support. The device can meet the water depth requirement in an ocean engineering experiment, meet the ground elevation requirement in a civil engineering experiment and a wind tunnel experiment, and meet the requirement that the floating bottom does not move, rotate or get stuck in the operation process of experimental equipment.

The invention belongs to the technical field of coal mine shaft maintenance emergency communication, and particularly discloses a shaft maintenance communication device and method based on an electromagnetic coupling principle. The device comprises an elevator controller, a car room main controller, a signal transmission medium and two pairs of electromagnetic coupling coils. The elevator controller is arranged in an elevator cage, and the car room main controller is arranged in a ground winch control room; a pair of electromagnetic coupling coils is respectively arranged at the top of a skip bucket of the elevator and below a guide wheel through a lasso structure and is respectively used for sending and receiving signals. A closed-loop lifting link where a steel wire rope of the elevator is located is used as a signal transmission medium, and bidirectional long-distance transmission of signals is achieved between an elevator controller and a car room main controller based on the electromagnetic coupling communication principle. A maintainer can actively lock the hoister through the hoister controller, accidental starting of the hoister caused by misoperation of a winch control room is avoided, and after locking is released, a winch driver can be informed of starting and stopping the hoister through voice and dotting control signals.

A roof moving winch hoisting assembly comprises a winch body, a composite pipe, a winch mounting frame, a moving support, a suspension arm mechanism and a counterweight assembly. The winch body is mounted on the winch mounting frame; one end of the composite pipe is wound on a winding drum of the winch body, and the other end of the composite pipe is forwards unwound from the winding drum; the winch mounting frame is rotationally mounted on the movable bracket; a plurality of universal wheels are arranged at the bottom of the movable support, and a plurality of supporting leg mechanisms are further arranged on the movable support. The suspension arm mechanism is mounted on the front side of the winch mounting frame; the counterweight assembly is installed on the rear side of the winch installation frame. The lifting device can get rid of the influence of a roof structure on lifting work, prevents the whole device from overturning or rollover during lifting, adapts to the conditions of uneven floor protrusions and the like, prevents a cable, a water pipe and a lifting rope from being intertwined when the wall cleaning robot is lifted, and is convenient and rapid in lifting direction adjustment.

The invention discloses an integrated electro-hydraulic driving unit of a marine anchor and mooring machine. The integrated electro-hydraulic driving unit comprises an oil supplementing system, a main driving system, a control system, a safety system and a hydraulic motor, an oil supplementing pump in the oil supplementing system is connected with an oil drainage tank and communicated with a pressure oil tank in the main driving system, the pressure oil tank is communicated with a main pump in the main driving system through two third one-way valves, a port A and a port B of the main pump are communicated with a port A and a port B of a hydraulic motor respectively, and one ends of two safety valves in the safety system are connected with the port A and the port B of the main pump respectively. The other ends of the two safety valves are connected in parallel to a pipeline between the oil outlet of the pressure oil tank and the inlets of the two third one-way valves; a controller of the control system is in electric signal connection with the main motor; and an output shaft of the hydraulic motor is connected with an input shaft of the anchor windlass. Therefore, according to the design, the hydraulic pump station, the control valve and the hydraulic motor can be integrated, and the integration degree is high.

The invention discloses multi-layer goaf drilling detection equipment and method.The equipment comprises a vertical guide pile, a first winch and a clamping type power mechanism, one ends of two steel wire ropes are connected with the clamping type power mechanism, and the other ends of the two steel wire ropes pass through the vertical guide pile and then are wound on the first winch; the detection drill rod is provided with an external expansion type detection arm, the clamping type power mechanism is provided with a second winch, one end of the traction rope is connected with the external expansion type detection arm, the other end of the traction rope is wound on the second winch, and the turnover type clamping mechanism is connected with the vertical guide pile; according to the method, downward drilling is conducted on the mine through the equipment, and data of the longitudinal multi-layer goaf is detected. According to the method, the specific appearance of the multi-layer goaf formed in the longitudinal direction at intervals can be effectively detected, data support is provided for follow-up mining, the mining safety is improved, the goaf is effectively avoided, and collapse accidents are avoided. The method is suitable for the technical field of goaf detection.

The present disclosure is directed to a multifunctional tailgate door and cargo load system that includes a multidirectional bumper apparatus with adaptable tow hitch receiver. The multifunctional tailgate door is adjacent to a cargo bed area having a rail system attached to the multifunctional tailgate door. The rail system having a linear actuator includes a rotary actuator hinge that enables the multifunctional tailgate door to function in a first direction and in a second direction. The multidirectional bumper apparatus is operable in a first direction and in a second direction, and may work in conjunction with the multifunctional tailgate door. The multifunctional tailgate door has at least one anchor that works in conjunction with the cargo load system. The cargo load system includes a plurality of ports in a rear cargo floor surface having a plurality of winches and at least one motor for securing a cargo load.