Lifting appliance for trapezoidal sleeper

Abstract

The invention discloses a lifting appliance for a trapezoidal sleeper. The lifting appliance comprises a bearing device, a suspension device and a movable lifting device. The bearing device takes a bearing frame body as a formwork, and four balanced supporting devices are arranged on the frame body. Two fork grooves are formed in the lower portion of the frame body in a bilateral symmetry mode, and a positioning device is disposed at one corner of the frame body. The movable lifting device takes a force transmission frame body as a framework, and the frame body is provided with four angle adjustment tracks matched with the balanced supporting devices. Two positioning blocks and two movable lifting hooks are arranged below a left short-edge support and a right short-edge support respectively, and the side edges of the two short-edge supports are provided with lifting hook locking devices. The bearing frame body of the bearing device acts on the force transmission frame body of the movable lifting device through the suspension device. The lifting appliance is matched with a forklift for use, the transportation and loading and unloading operations of the trapezoidal sleeper can be completed conveniently, swiftly, safely and effectively, and the lifting appliance not only greatly reduces the production cost and improves working efficiency, but also effectively improves the finishedproduct intact rate of the trapezoidal sleeper and the safety factor of the lifting process.

Description

technical field [0001] The invention relates to a hoisting device for a new type of prefabricated component used in the rail transit field, in particular to a hoisting tool for hoisting and transporting trapezoidal sleepers. Background technique [0002] In recent years, with the rapid development of domestic urban rail transit construction, there are higher requirements for high reliability, low cost, low vibration, low noise, and high earthquake resistance of rail structures. Trapezoidal sleepers are widely used because of their unique "prestressed concrete longitudinal beams + transverse connecting rods" frame structure, which realizes low vibration and low noise in rail transportation. Trapezoidal sleepers are high-precision, high-strength prestressed concrete prefabricated components. In addition to fine production during production, there are also high requirements for the height and levelness of finished product stacking. Therefore, the production of trapezoidal sleep...

AI Technical Summary

Problems solved by technology

This process is not only a large investment in manpower and capital, but also difficult to operate and low in efficiency. If the gantry crane is used in the outer yard, the site requirements will be raised and the production investment will be greatly increased. If the truck crane is used, the trapezoidal sleeper cannot be hoisted flexibly, and the trapezoidal sleeper may easily be caused by shaking. Collisions between sleepers or workers pose certain potential safety hazards

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