9results about How to "Improve hoisting stability" patented technology

The utility model relates to the technical field of lifting bolts, in particular to a double lifting bolt which comprises a stud, a connecting plate, two lifting rings and four limiting mechanisms, the stud is fixedly installed at the bottom of the connecting plate, the two lifting rings are installed on the connecting plate in a sliding mode through an adjusting mechanism, and the adjusting mechanism is used for adjusting the positions of the two lifting rings. And the four limiting mechanisms are hinged to the two lifting rings correspondingly, the limiting mechanisms are used for limiting external lifting equipment, the adjusting mechanism comprises two moving blocks, two sliding grooves are formed in the connecting plate, the two moving blocks are slidably installed in the two sliding grooves correspondingly, and the two lifting rings are rotationally installed on the two moving blocks through two cylindrical rods correspondingly. According to the double-lifting-ring screw, by arranging the adjusting mechanism and the steering mechanism, the axial direction of the lifting ring can be adjusted, the position of the lifting ring can be adjusted, and therefore the using effect and the lifting stability of the double-lifting-ring screw are improved.

The present application belongs to the technical field of hoisting of protective fences, and solves the problems of poor hoisting stability and low efficiency of the prior art. The present application provides a hoisting jig for protective fences, comprising: a suspension wheel connectable with a crane; a sling suspended on the suspension wheel; a high-position hanger connected with the higher end of the sling; a low-position hanger arranged on one side of the high-position hanger; a connecting assembly rotatably connecting the high-position hanger and the low-position hanger and connecting the lower end of the sling with the low-position hanger; the height of the high-position hanger is greater than the height of the low-position hanger; the connecting assembly enables the high-position hanger and the low-position hanger to have a hoisting state of being locked back-to-back and a docking state of being distributed front-to-back in the length direction of the protective fence. The device improves the hoisting stability and construction efficiency of the protective fence by simultaneously hoisting two protective fences and assisting in docking.

The invention relates to the technical field, in particular to a multifunctional straddle carrier based on hydraulic control, which comprises a vehicle body base, walking wheels are arranged at four corners of the vehicle body base, the multifunctional straddle carrier further comprises a support frame, a movable hanging beam and a hydraulic hoisting mechanism, the support frame is n-shaped, and the support frame is fixedly arranged on the top surface of the vehicle body base; the movable hanging beam is movably arranged on the inner side of the supporting frame. The hydraulic hoisting mechanism is arranged on the top of the supporting frame and used for controlling lifting of the movable hoisting beam. The second auxiliary beam bodies can retract into the main beam body and can also extend out of the main beam body towards the two sides, so that the length of the lifting beam can be flexibly adjusted according to the length of a lifted object, the use flexibility of the device is greatly improved, the lifting stability of the object is improved, and the multifunctional lifting effect is achieved.

This utility model discloses a lifting device for steel box girders, including a spreader beam, lifting lugs, a locking mechanism, and an adjusting mechanism. The spreader beam is horizontally positioned. Two lifting lugs are provided, respectively located on the left and right sides of the top surface of the spreader beam via the adjusting mechanism. The lifting lugs can move left and right on the spreader beam via the adjusting mechanism. The locking mechanism is located on the lifting lugs. This utility model, by incorporating the locking and adjusting mechanisms, can improve the stability of box girder lifting.

This utility model relates to the field of forklift auxiliary equipment technology, and in particular to a telescopic forklift boom, including a boom base, a main beam, and a telescopic beam. The boom base has insertion holes. One end of the main beam is rotatably connected to the boom base, and the angle between the main beam and the boom base is adjustable. A support plate is connected to the bottom of the other end of the main beam. The telescopic beam is inserted into the main beam and its position is adjustable along the axis of the main beam. A hanging ring is provided at the end of the telescopic beam away from the main beam. Multiple hanging holes are provided at the bottom of the main beam. Connectors are provided on both sides of the end of the telescopic beam away from the main beam, and an extension frame can be detachably connected to each connector. The extension frame extends in a direction perpendicular to the telescopic beam. This telescopic forklift boom of the utility model can be used with a forklift for stable lifting.

The utility model relates to the technical field of wind power generation equipment installation, in particular to a high mountain wind power single blade air accurate positioning auxiliary device which comprises a main supporting frame, one side of the main supporting frame is provided with a hoop assembly fixedly arranged outside a tower drum main rod in a sleeving mode, and a reinforcing frame is fixed to the bottom end of the main supporting frame. A rotary base is driven by the upper end of the reinforcing frame through a rotary motor, a vertically-distributed jacking air cylinder is fixed to the top of the rotary base, a lifting bearing plate is fixed to the output end of the jacking air cylinder, and a dynamic auxiliary supporting piece with a multi-direction adjusting function is arranged at the top end of the lifting bearing plate. According to the high mountain wind power single blade aerial precise positioning auxiliary device, precise positioning and angle adjustment of the blade in the air are achieved, the hoisting stability and the operation safety are improved, meanwhile, the rapid mounting and dismounting functions are achieved, the construction efficiency is remarkably improved, and the requirement for the complex environment of a high mountain area is met.

The utility model relates to a kind of fast-mounting type hoisting boom for fork truck, including fork carriage and the additional rack fixed on fork carriage, two oppositely arranged main arms are installed on the additional rack, the main arm is inverted L-shaped hollow structure, front support beam is fixedly connected between the horizontal section of two main arms, middle beam is fixedly connected on the front support beam, the hanger plate is installed in the lower end of the middle beam, the horizontal section upper end of the main arm is fixedly connected with lifting lug, frame steel pipe is fixedly connected between the vertical section of two main arms.The utility model can be hoisting boom accessory fast-mounting quick-change, improve the overall use efficiency of fork truck, meet the demand of market to fork truck diversification operation, and improve hoisting stability by double-hoisting-point design.

The utility model relates to the technical field of cabin hoisting of wind generating sets, in particular to a sling switching device for hoisting a cabin of a wind generating set, which comprises a lifting lug, the front end of the lifting lug is provided with a through hole penetrating front and back, the lower end of the lifting lug is fixedly connected with a fixing rod, and the lower part of the outer surface of the fixing rod is fixedly sleeved with a balance component. And the lower end of the fixing rod is fixedly connected with a switching assembly. According to the lifting appliance switching device for lifting the cabin of the wind generating set, an excellent buffering and damping effect is achieved through the buffering assembly, at the moment of lifting, impact force acts on the movable rod, the hydraulic damper consumes energy through flowing of hydraulic oil, the spring buffer absorbs energy through elastic deformation of the spring buffer, and the buffering effect is achieved. The hydraulic cylinder and the lifting cylinder stretch out and draw back along the interior of the fixing cylinder, impact force is converted into hydraulic energy and elastic potential energy, impact force transmitted to a cabin and lifting equipment is greatly reduced, components in the cabin and the lifting equipment are effectively protected, and the service life of the equipment is prolonged.

The utility model belongs to the technical field of metro power equipment hoisting, and particularly relates to a metro power supply construction hoisting device which comprises a door-shaped frame, rail wheels arranged on the two sides of the bottom end of the door-shaped frame and a crane arranged on the top of the door-shaped frame. A first lifting plate and a second lifting plate are fixedly arranged on the two lifting seats respectively, a plurality of steel wire ropes distributed at intervals are installed on the first lifting plate, and the other ends of the steel wire ropes can be connected with the second lifting plate. The utility model has the advantage of improving the hoisting and transferring stability of the subway power equipment.