Multifunctional longitudinal movement driving device for bridge girder erection machine

Abstract

A multifunctional longitudinal movement driving device for a bridge girder erection machine comprises a driving module arranged on a crown block of the bridge girder erection machine, driving chains on main beams of the bridge girder erection machine and a support rod mechanism between the crown block of the bridge girder erection machine and a main landing leg. Longitudinal movement of the crown block of the bridge girder erection machine and via holes of the main beams can be achieved by one drive mechanism; the problems of insufficient driving power, operation skid, difficult mechanism layout and the like of the bridge girder erection machine during long-span, large-tonnage and heavy-grade bridge construction can be solved; and the device has the characteristics of safety, stability, low cost, compact mechanism layout and the like.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a multifunctional longitudinal movement driving device for a bridge erecting machine. Background technique [0002] At present, the driving method of the crane crane of the bridge erecting machine is mainly the motor + reducer to drive the wheels, which require the wheels to overcome the friction between the track and the bridge. This method is mainly used for the construction of bridges with small slopes. Good results. However, for bridges with a longitudinal slope of more than 3%, it is difficult to provide a suitable driving force by the adhesion between the wheels and the track. At the same time, due to the large slope, slippery phenomena often occur, especially in rainy and snowy weather. , the friction coefficient between the wheel and the track is smaller, which increases the safety risk. [0003] For the through-hole driving method of the bridge ...

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Problems solved by technology

However, for bridges with a longitudinal slope exceeding 3%, it is difficult to provide a suitable driving force by relying on the adhesion between the wheels and the track. At the same time, the large slope often leads to slippery phenomena, especially in rainy and snowy weather. , the friction coefficient between the wheel and the track is smaller, which increases the safety risk

[0003] For the through-hole driving method of the bridge erecting machine, the motor + reducer is generally arranged on the outriggers to drive the wheels. However, due to the limitation of the working space of the outriggers, it is difficult to arrange the wheel drive mechanism, especially for large-tonnage bridge erecting machines. , it is very difficult to arrange the via-hole driving mechanism in the limited working space of the outrigger

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