Rail gnawing preventing device for hanging beam crown block, hanging beam crown block and traveling method thereof

Abstract

The invention relates to rail gnawing preventing devices, crown blocks and traveling methods, belongs to the technical field of bridge girder erection machines, and particularly relates to a rail gnawing preventing device for a hanging beam crown block, the hanging beam crown block and a traveling method thereof. The rail gnawing preventing device comprises a connecting cross beam and a central hinge shaft, wherein the two ends of the connecting cross beam are connected with hinge supports of a trolley, one end of the central hinge shaft is fixedly connected with the middle of the cross beam, and the other end of the central hinge shaft extends into a connecting hole in the middle of a vehicle frame end beam. In order to guarantee that the longitudinal moving trolley is stressed in a balanced mode and adapts to sidewise bending deformation of a bridge girder erection machine arm, the middle of the crown block vehicle frame end beam is connected with the longitudinal moving trolley through the central hinge shaft, and the end of a vehicle frame main beam is directly supported on the longitudinal moving trolley. The rail gnawing preventing device can be automatically adjusted to adapt to rail gnawing, automatically release the sidewise action force between wheels and rails, and avoid long-time rail gnawing.

Description

technical field [0001] The invention relates to an anti-gnawing device, a crane and a running method, belonging to the technical field of bridge erecting machines, and in particular to an anti-gnawing device for a crane, a crane and a running method thereof. Background technique [0002] At present, large-tonnage bridge erecting machines are more and more widely used, and have the characteristics of large span, heavy lifting capacity, high lifting height, and high work level, which makes the design of the matching crane beam crane particularly important. In particular, due to manufacturing and installation errors, rail gnawing is prone to occur when the crane is running. Regular and long-term gnawing on rails will not only cause great damage to the rails, wheels, motors and other related equipment, but also affect the safe and stable operation of the equipment, seriously It may even lead to major safety accidents. [0003] At present, in addition to strictly controlling the...

AI Technical Summary

Problems solved by technology

[0008] Another purpose of the present invention is to solve the disadvantages of poor reliability, difficult maintenance, high cost and poor stability of the anti-gnawing rail means in the prior art, and proposes an anti-gnawing rail device for crane beam cranes, Crane crane and its running method, the crane and its running method, the left and right longitudinal movement trolley and the longitudinal movement frame adopt the flexible connection form, the installation and operation are convenient, the structure is simple and compact, and the lower cover plate in the middle of the end beam of the frame adopts the waist eye hole Cooperating with the central hinge shaft with the round hole can release the lateral displacement caused by the deformation of the main beam of the frame, which has good safety guarantee

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