Transverse moving driving mechanism for main girder of bridge erecting machine

Abstract

The invention discloses a transverse moving driving mechanism for a main girder of a bridge erecting machine. The transverse moving driving mechanism comprises a bridge erecting main girder, a supporting leg, a bracket, a transverse moving mechanism, limiting blocks, limiting springs, pushing plates, a blocking block and convex blocks; wherein one side of the supporting leg is provided with the bracket and the bridge erecting main girder, and the bracket is fixedly connected with the supporting leg; one end of the bridge erecting main girder penetrates through the bracket; a fixing seat is fixed inside the bracket; the top of the fixing seat is in contact with the bridge erecting main girder; the transverse moving mechanism is installed inside the fixing seat; the transverse moving mechanism is composed of a driving motor, a threaded rod, the fixing seat, a fixing plate and a groove. According to the transverse moving driving mechanism, the transverse moving mechanism is arranged belowthe bridge erecting main girder, and the driving force generated by the transverse moving mechanism and the transverse moving resistance transmitted to the bridge erecting main girder by the bracketare basically in the same straight line, and the directions of the driving force and the transverse moving resistance are opposite, and the two force directions of the driving force and the transversemoving resistance have no obvious included angle, so that the transverse moving of the bridge erecting main girder on the bracket is smooth, the convenience of operation is increased, the time is saved, and the working efficiency is improved.

Description

technical field [0001] The invention relates to a driving mechanism, in particular to a driving mechanism for the transverse movement of the main girder of a bridge erecting machine, and belongs to the technical field of the transverse movement of the main beam of a bridge erecting machine. Background technique [0002] In the bridge erecting machine industry, in order to meet the needs of bridge erection, the main girder of bridge erection needs to move laterally, so that the position of bridge erection drop beams is accurate or avoid the interference of drop beams. The existing plan for the lateral movement of the main girder of the bridge erection is as follows: the overall lateral movement of the outrigger gantry drives the lateral movement of the main girder of the bridge erection, or a lateral movement mechanism is installed above the main girder of the bridge erection machine to push the main girder of the bridge erection laterally to move . [0003] The existing pat...

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Problems solved by technology

[0004] The purpose of the present invention is to press the adjustment plate downwards, so that the adjustment plate drives the slider and the push plate to move downward, compresses the telescopic spring and the limit spring, and releases the limit of the clamping block and the limit plate, so as to solve the problem in some Under the influence of external factors, it is inconvenient to install the main girder of the bridge. After the traversing mechanism is started, the drive motor drives the threaded rod to rotate, so that the limit block sleeved on the outside of the threaded rod moves with the direction of rotation of the threaded rod, thereby pushing the bridge. The main girder moves left and right on the bracket to solve the problem that it is difficult to realize the unsmooth movement of the bridging main girder in the prior art

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