668results about "Hoisting equipments" patented technology

The invention relates to the technical field of intelligent control of heavy equipment, in particular to a hydraulic synchronous intelligent control system for segmented turnover of an overweight steel structure, and discloses the hydraulic synchronous intelligent control system for segmented turnover of the overweight steel structure. According to the system, full-field strain data of a structure surface is acquired by deploying a flexible grid sensor array, and a deformation gradient topological graph is constructed to identify an instability risk area. And a dynamic fluid network model of the hydraulic system is established, fluid-solid coupling simulation is carried out in combination with deformation characteristics, and pressure pulsation transmission paths under different control instructions are predicted. And the system dynamically optimizes a data sampling strategy and network model parameters according to a prediction path, generates a hydraulic cylinder coordination action instruction subjected to pressure balance verification, and finally drives an execution mechanism to complete turnover operation. According to the scheme, full-field real-time sensing of structural deformation and dynamic coupling prediction control of hydraulic fluid are achieved, and the safety and control precision of the overweight component in the turnover process are improved.

The utility model relates to the technical field of building hoisting, and provides a combined type double-body steel sliding beam hoisting seat which is installed on a hoisting platform, at least two guide beams are arranged at the top of the hoisting platform, the combined type double-body steel sliding beam hoisting seat comprises a steel sliding beam with a hoisting hole, and a first guide clamping groove matched with the outer sides of the guide beams is formed in the bottom of the steel sliding beam. A lifting rope penetrates through the lifting hole; the guide seats are fixedly connected with the steel sliding beams, and second guide clamping grooves matched with the outer sides of the guide beams are formed in the bottoms of the guide seats; and the driving element is connected to one side of the steel sliding beam so as to drive the steel sliding beam to slide. The anti-overturning performance of the combined type double-body steel sliding beam hanging seat is greatly improved, and the requirement for stable sliding of the hanging seat is met.

The invention discloses an extended-range hybrid power system and a control method therefor, and a crane, and belongs to the technical field of construction machinery. The extended-range hybrid power system comprises a power battery, an all-in-one controller, a first motor, a second motor and an engine, wherein the first motor is connected to a lower traveling mechanism; the engine is connected to the second motor, and the second motor is connected to an upper operating mechanism; the power battery, the first motor and the second motor are connected to the all-in-one motor, and the all-in-one motor is connected to an external power supply.

The utility model relates to the technical field of building hoisting, and provides an internally-buckled anti-overturning slidable hoisting seat, which is mounted on a hoisting platform and comprises a hoisting seat main body with a hoisting hole and slidably arranged at the top of the hoisting platform, and the hoisting hole is used for a hoisting rope to penetrate through; the limiting structure is arranged between the lifting platform and the lifting seat main body and used for limiting the lifting seat main body to be separated from the lifting platform; and the driving element is connected to one side of the lifting seat main body so as to drive the lifting seat main body to slide. The lifting seat body can be driven by the driving element to slide, translation of the steel gallery can be achieved conveniently, the lifting seat body can be prevented from being separated from the lifting platform through the arranged limiting structure, overturning of the lifting seat body during sliding is avoided, and the requirement for stable sliding of the lifting seat is met.

Certain aspects of the disclosure provide a system and method for lifting and installing building components. In examples, the system may include a plurality of cable winches adapted to be connected to a ceiling structure; a plurality of cables, each cable having a first end connected to one of the cable winches and a second end adapted to be connected to the ceiling structure, wherein each cable of the plurality of cables is coupled to a pre-assembled building component; and a control mechanism for operating the cable winches simultaneously to lift the pre-assembled building component into a final location for installation.

The invention relates to the field of road repair, in particular to a hydraulic forcible entry device and a using method. According to the hydraulic forcible entry device, when the inspection well cover needs to be forcible entry, well cover cutting equipment and milling equipment are used for cutting and milling the periphery of the inspection well cover, so that only the bottom of the inspection well cover is connected with a shaft through a well ring; the whole hydraulic forcible entry device is lowered till the drill rod reaches the connecting face of the well ring and the shaft, and the oil cylinder keeps retracting in the lowering process; the oil cylinder extends out, the guide rod is driven to slide along the guide sleeve so as to drive the drill rod to extend outwards through the connecting rod, and an impact head slope at the outer end of the drill rod lifts the walling crib upwards so that the walling crib can be separated from the shaft; after separation, the inspection well cover and the well ring can be lifted away from the whole hydraulic forcible entry device. According to the hydraulic forcible entry device, manual forcible entry work after operation of a cutting machine is omitted, the labor intensity is reduced, the labor amount is reduced, the operation efficiency is improved, and the number of constructors needed for forcible entry is reduced.

The invention relates to a method for active dynamic braking of an elevator system (100). The method includes detecting (310) a dynamic braking condition, acquiring (320) speed data representative of a speed of the elevator car (102), and activating (340) an active dynamic braking operation for dynamically braking movement of the elevator car if the acquired speed data indicates (330) that the speed of the elevator car reaches a predetermined monitored speed level. The active dynamic braking operation includes operating a motor inverter of an elevator drive unit of an elevator system by switching a high-voltage side switch and a low-voltage side switch of the motor inverter in a controlled manner such that a rotating field is generated in a stator winding of a traction motor, therefore, the rotation of the traction motor is dynamically braked, and the movement of the elevator car is braked. The invention also relates to an elevator drive unit, an elevator system, a computer program and a computer readable storage medium.

The invention relates to the technical field of aircraft assembly, and discloses a six-degree-of-freedom attitude adjusting system and method based on a series-parallel connection structure, the attitude adjusting system comprises a moving seat, a mounting frame, a multi-shaft driving assembly and a mounting platform, each driving assembly is provided with a servo motor and a hand wheel dual power source, and is connected with a lead screw module through a bevel gear transmission mechanism; an elastic deflection mechanism is arranged between the power source and the bevel gear and used for achieving auxiliary torque supply, and the multi-shaft driving assembly can achieve adjustment of six postures of front-back, left-right, up-down, pitching, rolling and rotation in the horizontal plane when the large power part of the aircraft is assembled. According to the six-degree-of-freedom attitude adjusting system, through the innovative design of series-parallel mechanism fusion, double-power-source redundant drive, electric cooperative control and the like, high-precision assembly and installation of heavy-weight parts such as aero-engines can be achieved, and high-precision assembly and installation of the heavy-weight parts are high in precision, high in reliability, low in labor intensity and high in adaptability.

A device (1) for salvaging a motor vehicle involved in an accident, in particular a burning motor vehicle (12), from a danger zone has an extendable telescopic cylinder (2), at the tip of which at least one catch (5) is attached so that it can be folded in such a way that the motor vehicle (12) is carried along when the device (1) is pulled back.

A lift device includes a chassis, an implement assembly including an implement actuator, and a lift assembly coupling the implement assembly to the chassis and configured to raise the implement assembly relative to the chassis. The lift device further includes at least one of a gyroscope assembly, a hydraulic stabilization system, or a first boom portion and a second boom portion. Rotation of a flywheel causes the gyroscope assembly to apply a force to the implement assembly to oppose movement of the implement assembly. Responsive to movement of the implement assembly when a valve is in a closed position, fluid flowing between the implement actuator and a fluid source is directed through an orifice via a second supply line, thereby restricting the flow of fluid and dampening the movement of the implement assembly.

The invention relates to the technical field of municipal construction tools, in particular to an auxiliary device facilitating installation of a well lid. According to the auxiliary device facilitating well lid installation, the well lid can be conveniently and directly hoisted, accurate positioning can be conducted in the placing process, and the well lid installation efficiency is improved. An auxiliary device facilitating installation of a well lid comprises a frame, wheels, a push handle and the like, the front wheel and the rear wheel are rotationally connected to the lower sides of the left portion and the right portion of the frame respectively, and the push handle is connected to the left side of the middle of the frame. According to the well lid hoisting device, by starting an electric push rod, a clamping block can rapidly clamp and disengage a well lid, hoisting of the well lid is facilitated, a sliding rod in a positioning mechanism can be matched with a rotating frame, the well lid can be rapidly moved to the center position of a water drainage opening, and the purposes that the well lid can be conveniently and directly hoisted, and the hoisting efficiency is improved are achieved. And accurate positioning can be conducted in the placing process, and the well lid mounting efficiency is improved.

The invention relates to a method for collision monitoring of a load attached to a cable of a working machine, in particular a crane, wherein the working machine comprises a rotating platform rotatable about a vertical axis of rotation, a boom connected to the rotating platform over which the cable is guided, and at least one sensor for detecting the current position and / or movement of at least one movable component of the working machine. According to the invention, based on the sensor data, a predictable braking trajectory of a defined point on the working machine is determined, and based on the determined braking trajectory of the defined point and a computational model, a predictable braking trajectory of the load is calculated.The invention further relates to a working machine, in particular a crane, comprising a rotating platform rotatable about a vertical axis of rotation, a boom connected to the rotating platform over which a cable is guided, and a control unit which receives data from at least one sensor of the working machine relating to a current position and / or movement of a load suspended from the cable, wherein the control unit is configured to carry out the method according to the invention. The invention further relates to a corresponding computer program product.

The invention provides a ground laser positioning mountainous area multi-machine lifting cooperative control method and system, and relates to the technical field of cooperative control, and the method comprises the steps: 1, calculating a first real-time pose of an aircraft through a laser positioning signal transmitted by a laser positioning base station; according to the image data of the three optical identification points, calculating spatial three-dimensional coordinates of the three optical identification points to define a spatial geometric curved surface patch, and decomposing the curved surface patch into a strong signal manifold and a weak signal homotopy group; 2, taking the optical identification point of the central point of the upper edge of the front end surface of the load structure as a spatial reference origin, and connecting the two optical identification points of the left vertex and the right vertex of the lower edge of the rear end surface to form a first spatial vector and a second spatial vector; through laser positioning signal partitioning, load pose multi-source fusion optimization and dynamic compensation control of the Lyapunov potential function, the method adapts to signal shielding and attenuation scenes of mountainous complex terrains, inhibits load swing, reduces the risk of obstacle scraping and collision, and improves the safety of multi-machine lifting.

The utility model discloses a cage loading and unloading device and an unmanned vehicle, and belongs to the technical field of logistics transportation. The cage loading and unloading device comprises a translation mechanism and a lifting mechanism. The translation mechanism comprises a first translation guide rail and a lifting trolley which is arranged on the first translation guide rail and can move along the first translation guide rail, and the lifting trolley comprises a lifting platform which can ascend and descend and is used for lifting the cage box. The lifting mechanism comprises a lifting table which is arranged at the rear end of the first translation guide rail in a lifting mode and used for bearing the cage, side supporting pieces are arranged on the two sides of the lifting table, a tail supporting piece is arranged at the tail, and the lifting table can be lifted to be flush with the first translation guide rail. And when the lifting table is lifted to be flush with the height of the first translation guide rail, the lifting trolley can move to the lifting table so as to lift the cage box borne on the lifting table. According to the cage loading and unloading device and the unmanned vehicle, through the lifting mechanism and the translation mechanism, a lifting and translation mechanism replacing overturning operation is introduced, and overturning operation of the cage is avoided.

The utility model relates to the technical field of building construction equipment, in particular to a steel structure hoisting steel wire rope protection device which comprises a steel wire rope body, a positioning frame is arranged on one side of the steel wire rope body, and a speed reduction protection assembly is arranged on one side of the positioning frame; through the arrangement of the roller, the bearing frame, the limiting rod, the first spring and other components, and through the movable installation relation of the roller and the steel wire rope body, the roller can roll on one side of the steel wire rope body, and the movement of the steel wire rope body is buffered and guided. And meanwhile, through cooperation of a bearing frame, a limiting rod and a first spring, self-adaptive adjustment can be conducted according to the movement state of the steel wire rope, and then the effect that the device can conduct buffering protection and stable guiding on the moving steel wire rope through the rolling wheels and related parts is achieved. When the speed of the steel wire rope body exceeds a threshold value, the centrifugal force effect is more obvious, and then the speed of the steel wire rope descending at a high speed can be monitored through the rotating wheel and related parts.

The well opening device capable of improving the well lid opening efficiency comprises a force arm rod assembly, and the force arm rod assembly comprises a force arm rod base, a force arm ejector rod movably arranged at the top end of the force arm rod base and a force arm grip fixed to the top end of the force arm ejector rod. The fixing plate is fixed to the bottom end of the force arm rod seat, the connecting rod seat is fixedly installed on the right side of the fixing plate, the movable rod is movably installed at the right end of the connecting rod seat, and the supporting arm is fixedly connected to the bottom of the movable rod. Through the design of a mechanical structure, the risk that the well lid is directly operated by manpower is reduced, damage caused by sudden looseness of the well lid or breakage of a tool is reduced, the diversity of well lid specifications is considered in the design of the device, the universality and adaptability of the tool are improved through adjustable components, the mechanical principle is utilized, and the production efficiency is improved. According to the manhole cover opening device, the strength and time required for opening the manhole cover are reduced, particularly in emergency, the manhole cover can be quickly opened and placed, and the overall operation efficiency is improved.

The utility model relates to the technical field of municipal engineering equipment, and discloses a multifunctional well lid opening auxiliary device which comprises a mounting base, force application rods rotationally arranged on the mounting base and force application bases arranged at the ends, away from the mounting base, of the force application rods. Rotating shafts of the two force application rods are parallel to each other, the two ends of the force application seat extend out of the side walls of the force application rods, the force application seat can be inserted into a manhole cover preformed hole, and the length of the force application seat is larger than the width of a common manhole cover preformed hole; the manhole cover can be conveniently opened, and potential safety hazards in the operation process are reduced.

An elevator drive configured to control power to an elevator motor includes a plurality of first (upper) inverter switches and a plurality of second (lower) inverter switches. A processor is configured to provide control signals to control operation of the inverter switches. A first signal buffer between the processor and the inverter switches is configured to selectively prevent any control signals from turning on any of the inverter switches when the motor should not receive power. A second signal buffer between the processor and the inverter switches is configured to selectively bypass the first signal buffer, prevent any control signals from turning on the first inverter switches, and allow a control signal from the processor to turn on the second inverter switches to provide motor braking.

The invention relates to electromechanical safety actuation of an elevator regulator. The elevator system regulator includes a traction pulley having an engagement surface and a cable wound around the traction pulley, the traction pulley configured to travel along the cable. The electromechanical locking mechanism is configured to selectively engage the traction pulley to cause operation of a safety brake of the elevator system. The locking mechanism includes a hub assembly having an inner engaging hub and an outer engaging hub. The inner hub has an actuator connector connectable to a safety link, and the outer hub has an engagement surface for selective engagement with an engagement surface of a traction pulley. The actuator is configured to selectively apply a force to the outer engaging hub to engage the outer engaging hub such that the engaging surface of the outer engaging hub and the engaging surface of the traction pulley engage and cause rotation of the inner engaging hub.

The invention belongs to the technical field of hoisting equipment, particularly adapts to high-altitude and low-altitude multi-scene hoisting operation and high-altitude safety protection, and particularly discloses an ultra-high molecular weight polyethylene fiber rope self-locking device which comprises a shell, a fixing handle is arranged on the shell, and a main ratchet wheel rotating disc is rotationally installed in the shell; a first pawl is arranged in the shell and matched with the main ratchet wheel rotating disc, and an auxiliary ratchet wheel rotating disc is further arranged in the shell. Through cooperation of the main ratchet wheel rotating disc and the auxiliary ratchet wheel rotating disc, the fiber rope forms a curved track, the number of locking stress points of the fiber rope is increased to two, and the local stress load of the fiber rope is dispersed; the problems that the ultra-high molecular weight polyethylene fiber rope is locally prone to friction damage and the structure is weakened during high-low-altitude operation are solved, meanwhile, the locking failure risk caused by extreme dynamic impact is reduced, and the complex and harsh safety protection requirement of the high-low-altitude operation can be stably met.

The utility model discloses an oil well wellhead elevating gear, including mounting seat, the bottom fixed of mounting seat is equipped with four rectangular arrangement's support leg, the top fixed of mounting seat is equipped with double -end motor, the top fixed of mounting seat is equipped with two locating plate, both ends of double -end motor all movably are equipped with the pivot, the utility model discloses setting the vertical board, the ratchet wheel, the mounting panel, the transverse board, the pawl, the pole, the limiting board, the spring and the pull rod, the pivot drives the reel and the ratchet wheel when the placement board rises, the reel drives the placement board through the steel rope, the ratchet wheel anticlockwise rotation extrusion one side's pawl, and the pawl rotates and extrudes the spring, when the top of pawl from the ratchet wheel current's slot inside breaks out, the spring pushes pawl reset, and the pawl will be clamped in another slot, if the double -end motor fails when in the rising period, the pawl will lock the ratchet wheel, thereby can prevent the placement board to plummet suddenly the situation appears.

The invention provides a braking device for a freight electric crane of a transporter, which belongs to the technical field of freight hoisting equipment and comprises a crane braking assembly, a front-end handle assembly arranged on the crane braking assembly and used for controlling a front-end crane and a rear-end handle assembly arranged on the crane braking assembly and used for controlling a rear-end crane. The braking device is safe and reliable in braking of the electric crane, movement of the electric crane on the crane guide rail is not affected through manual operation, the braking device of the transport electric crane of the transporter can be arranged in a bilateral symmetry mode in a cargo hold according to the arrangement position of the electric crane in the cargo hold, and the corresponding configuration is selected according to the structural layout.

The utility model provides a folding well lid opening device which comprises a handheld part, a folding joint and an operating part, and the folding joint is rotationally connected with the handheld part and the operating part; the folding joint comprises a plurality of folding pipes which are sequentially and rotatably connected end to end, and the next-stage folding pipe can be folded into the previous-stage folding pipe; in a storage state, the plurality of folding pipes in the folding section are folded in sequence to realize storage; and in the opening state, the plurality of folding pipes in the folding section are sequentially unfolded so as to realize opening. The portable well lid opening tool is small and exquisite in structure, has a folding function, achieves the effect of being convenient to carry, and improves the working efficiency.

The utility model relates to a triangular temporary backrest structure in a basement under construction, which is positioned on a bottom plate constructed underground and comprises a bracket, a vertical support, a transverse support and an inclined support, the vertical support and the transverse support are located on the same plane and are perpendicular to a line of a jacking pipe in the jacking pipe starting equipment. A gap is formed between the transverse support and the bottom plate; the inclined strut is provided with a first end and a second end, and the first end of the inclined strut is arranged at the intersection of the vertical support and the transverse support; the second end of the inclined strut is arranged on the bottom plate through the bracket; and the vertical support stands on the bottom plate. The pipe jacking device can meet the pipe jacking construction process requirement, the requirement for a construction site is small, and resource cost is saved.

The utility model discloses an elevator brake, which relates to the technical field of elevators, and comprises a support plate, a support frame and a support motor, by arranging a clamping mechanism and a rotating component, the clamping motor is started to drive a clamping shaft detachably and fixedly connected with the output end of the clamping motor to rotate, so that a rotating block rotationally connected with the clamping shaft rotates, and the rotating component rotates; according to the clamping device, the rotating blocks get close to each other, so that the rotating blocks are driven to slide on the rotating rods, the arc-shaped blocks fixedly connected with the rotating blocks get close to the surface of the supporting disc, after the surfaces of the arc-shaped blocks make contact with the surface of the supporting disc, friction is generated between the arc-shaped blocks and the supporting disc, and the supporting disc is clamped and fixed; the supporting disc can be quickly braked when the elevator breaks down, falling of the elevator is avoided, and the supporting disc is cleaned by arranging the cleaning mechanism, the sliding component, the connecting component and the fixing component. And the situation that the braking effect on the supporting disc is affected in emergency due to the fact that oil stains on the supporting disc are too much is avoided.

The utility model provides large casting part lifting and overturning equipment which comprises base box bodies which are symmetrically arranged, stand columns are fixed to the tops of the base box bodies, a top cross beam is fixed between the tops of the stand columns, vertical sliding rails are fixed to the outer walls of the stand columns, lifting plates are installed on the vertical sliding rails in a sliding mode, and lifting chains are connected to the tops of the lifting plates. The lifting chain bypasses a driving chain wheel and a supporting chain wheel at the top of the top beam; the driving chain wheel is installed on a main shaft, the main shaft is rotatably installed on the top of the top cross beam through a bearing seat, the main shaft is connected with a lifting driving device, the other end of the lifting chain is connected with the top end of the balancing weight, an overturning plate is installed on the lifting plate through an overturning mechanism, and a clamping arm is installed on the outer wall of the overturning plate. The equipment can be used for lifting and overturning in the local repairing process of the large casting part, so that the traditional operation process of hoisting by a crane is well replaced, the repairing efficiency of the casting part is effectively improved, and the labor intensity of operators is reduced.

The utility model discloses a lifting device with an anti-falling structure, which relates to the technical field of lifters, and comprises a support base and a lifting bucket, the top of the support base is fixedly connected with a fixing frame and a discharging frame, the two side surfaces of the lifting bucket are rotatably connected with second pulleys, the second pulleys slide in the discharging frame, and the second pulleys are fixedly connected with the fixing frame. A connecting rod is fixedly connected to the bottom of the lifting bucket, first pulleys are rotationally connected to the two ends of the connecting rod correspondingly, the first pulleys slide in the fixing frame, an anti-falling mechanism is arranged on the discharging frame, and a second pulley extrudes the inclined face of a sliding stop lever to extrude the sliding stop lever to slide towards the interior of a fixing base; and then the sliding stop lever is driven to quickly slide and reset under the action of the elastic force of the elastic mechanism, and when an accident occurs, the second pulley is limited to slide downwards in the unloading frame through the plane of the sliding stop lever, so that the phenomenon that the elevator bucket falls off suddenly is prevented, and the use is safe.

This invention discloses a method for deploying and retracting a cable manhole cover opening device, comprising an unfolding step, a lifting step, and a storage step. The storage step includes: switching the cable manhole cover opening device from its operational state to its unfolded state; and storing the unfolded device. This method allows the cable manhole cover opening device to be directly pushed onto a transport vehicle and cleverly folded and stored on the transport platform. Conversely, it can also be pulled to unfold the folded device from the transport platform. This method cleverly achieves convenient loading and unloading of the device from the transport vehicle while simultaneously folding and unfolding it, saving effort, being convenient, and easy to operate, thus exhibiting high usability.

The application discloses a six-freedom heavy-load assembly industrial robot, which comprises a vehicle body capable of being servo-driven, a mechanical arm assembly arranged on the vehicle body, a clamping jaw assembly connected in the mechanical arm assembly, a stand fixed on the vehicle body and higher than the highest point of the mechanical arm assembly, a horizontal cross rod fixed on the top of the stand, pull ropes distributed on the cross rod, hooks connected to the ends of the pull ropes, and a holding assembly arranged on the front end of the vehicle body; compared with the prior art, the application has achieved remarkable beneficial effects in the safety of heavy-load carrying, the adaptability to different workpieces, the stability of load transfer, the precision of final assembly and the like.

Disclosed is a wear monitoring system for a brake device of a motor, the brake device comprising a brake disc and a brake magnet, the brake magnet being movable relative to the brake disc to switch between an engaged state and a disengaged state; wherein the wear monitoring system comprises: a fixedly arranged support; a first arm portion comprising a first free end and arranged to be coupled to the brake magnet such that the first free end is always in contact with a bottom of the brake magnet; a second arm portion arranged to be coupled to the first arm portion and comprising a second free end; and a triggering device comprising a triggering button arranged to be triggered by the second free end of the second arm portion when the brake magnet and the brake disc are in the engaged state and the amount of wear of the brake magnet reaches a first threshold value or a multiple of the first threshold value and is less than a second threshold value. Also disclosed is a motor comprising such a wear monitoring system. Also disclosed is an elevator comprising such a wear monitoring system or motor.