3818 results about "Lifting equipment" patented technology

The invention discloses an automatic battery replacing system of an electric automobile, which comprises a vehicle positioning platform, a positioning base, lifting equipment, a battery box and a battery box locking device. The vehicle positioning platform is arranged above the positioning base and the lifting equipment and used for positioning and parking a vehicle; a through opening is arranged in the center of the positioning platform for dismounting and mounting the battery box; a controllable positioning mechanism is arranged between the lifting equipment and the positioning base; the positioning mechanism is used for realizing automatic positioning between the positioning base and the lifting equipment; a guiding device is arranged between the battery box and the vehicle for compensating position error when the battery box is mounted; and the battery box locking device is used for locking the battery box in the vehicle or unlocking the battery box. The invention further discloses a method for automatically replacing the battery of the electric automobile by using the system.

The invention is a hoisting device for a vessel a base structure provided with fixed cable blocks with pulleys; a trolley connected to a cable pulley block and a mechanism for gripping a load; a compensator a hoisting mechanism with a hoisting cable and a winch, wherein the hoisting cable is guided over the cable pulleys connected to the base structure and is adapted to move the trolley relative to the base structure with the aid of the winch; a secondary compensator with fixed cable blocks and pulleys connected to the base; a cable pulley set connected to the compensator end; a connection cable connected to a stationary section and a movable cable block with pulleys; a hoist connected to the vessel; a connecting cable guided over pulleys; and movable cable block and is adapted to move the compensator second end with the aid of the secondary hoisting mechanism.

The invention relates to a super hoisting device for hoisting equipment, which comprises at least one super hoisting bracket (2), a first tensioning mechanism (1) and a second tensioning mechanism (3). The fixed end of the super hoisting bracket (2) is articulated with a hoisting boom (6) of the hoisting equipment; one end of the first tensioning mechanism (1) is connected to the movable end of the super hoisting bracket (2) and the other end is fixed to the head end of the hoisting boom (6); one end of the second tensioning mechanism is connected to the movable end of the super hoisting bracket (2) and the other end is connected to a turntable (4) of the hoisting equipment. In addition, the invention also relates to telescopic-boom hoisting equipment provided with the super hoisting device.

The invention relates to production technology for a concrete precast element with energy-saving and environment-friendly functions. In the production of the prior concrete precast element, the fixing of a precast element mould, operators, lifting equipment and raw materials of production are in a motion state, and the production has low efficiency, serious noise pollution, large steam loss, and large energy consumption, and cannot isolate vibrating noise. The technology comprises the following steps: demoulding of a precast element; clearing the inner surface of the mould and spraying mould oil; installing an embedded part and lifting a reinforcement cage; casting concrete and vibrating the concrete; touching the surface of the concrete and clearing the outside surface of the mould; standing and curing; polishing the surface of the concrete; and steam curing. The mould does reciprocating running circularly by current production equipment, and workers, materials and equipment are fixed relatively so as to improve the productivity. The working procedures of vibrating and steam curing are carried out in a fixed station so as to isolate the noise effectively and carry out effective heat insulation on the steam loss and heat loss. The production technology has significant energy conservation and environment protection, and is favorable for popularizing.

First and second networks of switching devices, each of which are an insulated gate bipolar transistor with an intrinsic reverse-biased clamping diode, are controlled to selectively connect a sinusoidal input voltage and an output to different nodes within a series of capacitors during different portions of input and output voltage cycles to produce a stepped sinusoidal output voltage. The topology requires a low part count, produces relatively low harmonics without filtering when powering artificial lift equipment within a borehole, and scales up to medium voltages without a step-up transformer. During variable speed operation of the lift equipment, optimized switching angles for controlling the switching devices during the voltage cycles may be selected based on modulation producing the desired speed and phase measurements.

This invention describes a transfer stretcher, harness and method designed to lift, transfer or support a person, more specifically a heavy weight, large size (oversize) person. Stretchers are generally used by hospitals or by rescue/emergency units to lift or carry a person from one location to another. The transfer stretcher covered by the present invention is made of a supporting canvas equipped with lifting straps and rings, a removable washable comfort cloth, and maybe used with a removable safety harness that can be used with a stretcher basket and a sling frame. The transfer stretcher can be used to move a body manually with the help of several persons, or in combination with various lifting equipment.

The present invention discloses a tail device and a tail dragging method. The tail device comprises: a tail end row which at least comprises a boom system, a travelling mechanism and a lifting mechanism, wherein the boom system is provided with a lifting mechanism and is supported on the travelling mechanism; and a tailstock which is used for being removably fixed to the lower part of a lifted device, and is provided with lifting holes. In the process of lifting the lifted device from the ground, the lifting mechanism is in hanging connection with the lifting holes, and the lifting holes are located at the end deviating from the ground. When the tail device is use for lifting a device, the center of gravity of the lifted device can be guaranteed to be always located below a connection line between the lifting point of main lifting equipment and the lifting point or the support point of the tail end row. The tail device has the advantages of good security, small weight borne by the tail end row, low lifting cost, etc.

The invention provides a construction method for assembling steel box girders, which is used for the hoisting construction of the steel box girders during the road and bridge construction. The method comprises the steps as follows: a first steel box girder section is hoisted; a second steel box girder section is hoisted and suspended on the soleplate of the first steel box girder section; a connecting clamp plate is arranged at the top plate of the first steel box girder section and the second steel box girder section and is respectively suspended on top of the first steel box girder section and welded on the top of the second steel box girder section; hoisting equipment is removed; the mutual position of the steel box girder sections is adjusted and the steel box girder sections are welded to each other; the connecting clamp plate is removed; the temporary pier is removed; and the assembly is completed. As the residual assembly is adopted, the steel box girder construction under complex construction environment has large elasticity, thus ensuring the assembly precision and quality; the loading form is adopted to carry out the assembly of the steel box girder, thus solving the problem that the temporary pier is difficult to be arranged when the site is restricted; the construction time of hoisting equipment and the use of the temporary piers are reduced; and the whole assembly process is simple, feasible, safe, reliable, economical and reasonable.

The invention provides a stability monitoring system of lifting equipment, comprising a first acquisition unit which is arranged at the position of a landing leg oil cylinder of the lifting equipment and acquires the force applied to each landing leg, a second acquisition unit which acquires the lifting weight of the lifting equipment, a judging unit which reads a working condition table which ispre-stored in a storage unit and a processing unit, wherein the working condition table contains working condition information, a lifting weight parameter and a rated landing leg counter-force, the working condition information corresponds to the lifting weight parameter and the rated landing leg counter-force one by one, the judging unit finds the rated landing leg counter-force which corresponds to the obtained lifting weight from the working condition table and compares the rated landing leg counter-force with the acquired force applied to each landing leg, and the processing unit limits the action of a corresponding executing mechanism according to the judging result. In the technical scheme of the invention, the stability monitoring system can detect the counter-force applied to eachlanding leg in real time and the rotating position of each landing leg, compares with the preset working condition table, controls the action of a crane and avoids the roll-over of the crane. The invention also provides a stability monitoring method of lifting equipment.

The method provides a dry vertical shaft storage system for spent fuel of a nuclear power station and a storage method thereof. The system comprises a loading subsystem, a storage subsystem, a reloading subsystem, a transferring subsystem, a residual heat discharge subsystem, a negative pressure ventilation subsystem, a fuel suction subsystem and an air blowing subsystem. The system saves a water-cooling system and a water purification system on the basis of the water storage method; the storage vertical shaft is arranged underground, so that the influence of an external event can be effectively prevented, such as airplane crash; when the spent fuel needs to be transferred, a spent fuel storage tank can be taken out of a storage depot, and then directly loaded in a spent fuel shielding transport cask through lifting equipment so as to be conveniently transported; a plant and structural equipment are not polluted by radioactive materials, so the spent fuel storage depot can be normally disassembled and retired after the spent fuel storage tank is transferred; radioactive decontamination is not needed and the spent fuel storage depot can be conveniently retired; and the storage tank can be processed in different phases to reduce initial cost according to the operation of the power station.

The invention provides a push pipe construction method and a push pipe device, and belongs to the technical field of architectural engineering equipment. The technical problems such as low construction efficiency of the conventional push pipe construction method are solved. The construction method comprises the following steps: a, digging a well; b, mounting equipment; c, jacking a drill head of the push pipe; d, jacking a pipeline; e, pumping mud; f, taking out a machine head, and the like. The push pipe device comprises jacks, a jack bracket, a sliding rail and a push pipe drill head, wherein the jacks are arranged on the jack bracket; the push pipe drill head is arranged on the sliding rail; telescopic rods of the jacks are towards the push pipe drill head; a circular back is arranged between the jacks and the push pipe drill head, and the circular back is attached to the end part of the push pipe drill head; the front end of the push pipe drill head is connected with a water inlet pipe and a mud outlet pipe, and hoisting equipment is also arranged above the sliding rail. According to the invention, in the process of jacking, water can be injected into the front end of the push pipe drill head through the water inlet pipe, excavated soil is changed into slurry by water currents, the slurry is discharged out of the mud outlet pipe, and the soil discharging efficiency is improved.

The invention provides a vibration-free cutting method for an equipment concrete foundation, which belongs to the technical field of equipment foundation dismantling or reconstruction. The cutting method specifically comprises the following steps that: cutting equipment is selected according to the structural mode of the equipment concrete foundation to be cut; cutting volumes are divided according to the configuration of lifting equipment; a support scaffold is arranged according to the erection of partition cutting lines; the equipment concrete foundation is cut; and cutting blocks are cleared up. The cutting method provided in the invention realizes the purposes of completing block cutting and different block lifting through adopting different cutting equipment to different concrete structural modes in a reconstruction area, the internal losses of the structure is reduced during the dismantling process, less dust is produced, the cut concrete blocks are quick and convenient to clear up and transport, so the engineering cost is reduced, and the efficiency of the concrete reconstruction work is improved.

The invention relates to an automatic cleaning machine for decorative glass curtain walls of building walls, which includes a base plate, two stable support plates, four moving devices and a cleaning device. The front end of the base plate is provided with a rectangular groove, and the middle part of the base plate is provided with a strip groove. The rear end of the bottom plate is provided with a square groove, and two stable support plates are installed symmetrically on the upper ends of the left and right sides of the bottom plate. The support plate is stable, and the cleaning device is installed on the bottom plate. The present invention can solve the problem that the glass curtain wall needs to be manually cleaned on the hoisting equipment according to the working position in the process of manual cleaning of the glass curtain wall. There is a safety hazard in the high-altitude operation by using the existing hoisting equipment manually, and the residual cleaning agent after scrubbing is not recovered in time. However, if it falls to the bottom, it takes a long time to manually clean the glass curtain wall, which is labor-intensive and inefficient.

The invention provides a building garbage treatment system. The building garbage treatment system comprises crushing equipment, sieving equipment and material lifting equipment, wherein the sieving equipment is arranged above the crushing equipment and is provided with a downwardly arranged material slideway; the material lifting equipment is used for lifting the discharged material of the crushing equipment to the sieving equipment. According to the building garbage treatment system provided by the invention, the sieving equipment is arranged above the crushing equipment, so that the occupied area of the whole treatment system is effectively reduced. In addition, height fall exists between the sieving equipment and other equipment, so that the return material of the sieving equipment automatically slides downwards through the material slideway under the action of gravity, conveying equipment is reduced and efficiency is improved.

A trailer landing gear lifting apparatus (100) for raising and lowering landing gear (10) of a trailer (30) has a wrench (102) connected by an air hose (102, 222) to an air supply line ((212) and, optionally, to an air tank (210). An attachment bracket (104), a keeper arm (106) and a wrench bracket (110) optionally secure the wrench (102) to a pair of I beams (112) of the trailer (30) such that the wrench (102) is affixed to the trailer (30).

A closure method for a large-span continuous steel truss arch, which takes the adjustment of cable force of a cable of a tower with a suspended cable or a horizontal cable as the main means, combines the longitudinal moving of a steel truss to realize the closure of the steel truss. The present invention does not require truss lifting equipments, and is a safe, convenient and efficient closure method, which is applicable for the closure of general continuous steel truss beams.

The invention relates to an asymmetrical structure air posture adjusting method, which specifically comprises the step of (1) designing a set of applicable pulley set hoist cable system auxiliary posture adjusting mechanisms; (2) allocating lifting equipment; and (3) performing overturn work. By adopting a set of pulley set auxiliary adjusting mechanism. The method achieves the target requirement for accurately adjusting and positioning the asymmetrical structure, and can strictly guarantee the conversion stability between force system and force point when adjusting the posture of the asymmetrical structure, furthermore, the force to the system does not abruptly changed, and the adjustment action is safe and reliable.

A patient lifting apparatus is provided that attaches to a bed frame having a plurality of legs and a headboard. The apparatus includes an upright member, a boom mechanically associated with the upright member, an upper support bar that extends across the bed frame and secures the upright member to each side of the headboard, and a lower support bar that extends across the bed frame and secures the upright member to the legs. The upright member is supported for rotation about a vertical axis by upper and lower bearings on the upper and lower support bars, respectively. A telescoping foot member extends from the lower support bar and is movable between a stored position and an extended position for stabilizing the lifting apparatus. A support arm extends from a lower end of the upright member and rotates along with the upright member to transfer vertical forces into the floor.