Tail device and tail dragging method

Abstract

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.

Description

technical field [0001] The present invention mainly relates to the field of hoisting, in particular to a tail-running device and a tail-running hoisting method using the tail-running device and main lifting equipment. Background technique [0002] For large-scale equipment that needs to be flipped and hoisted, such as reactors in petrochemical engineering, the hoisting process needs to flip the reactor from a horizontal state to a vertical state. In the traditional hoisting, the tail row or lifting method is generally used. Usually, the main lifting equipment is used at one end of the hoisted equipment, and the tail row or tail crane is used at the other end. [0003] For the traditional tail row lifting method, it is necessary to use a hoist for towing, traction and back sliding, and use roller bars or laying tracks to realize the movement. Auxiliary equipment and manpower input are large, the operation is complicated and the preparation period is long, and the tail The su...

AI Technical Summary

Problems solved by technology

[0003] For the traditional tail row lifting method, it is necessary to use a hoist for towing, traction and back sliding, and use roller bars or laying tracks to realize the movement. Auxiliary equipment and manpower input are large, the operation is complicated and the preparation period is long, and the tail The support point of the tail row is set at the lower end of the equipment. When the equipment is turned upright during the hoisting process, it usually needs to cross the critical point of the center of gravity, which will bring a large shaking impact. The tail row needs to bear almost all the weight of the equipment, so It is rarely used in mechanized hoisting

[0004] For the lifting and lifting method, although the above-mentioned shortcomings of the tail-sliding and tail-sliding lifting method can be avoided, it is necessary to configure large-scale lifting equipment for sliding the tail, especially crawler cranes, which not only occupy equipment resources, but also have high project construction costs.

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