A building construction transmission iron chain auxiliary drive device

Abstract

The invention discloses an auxiliary driving device for a transmission iron chain for building construction. According to the auxiliary driving device, through mutual matching of two cams, a pressingblock is driven to intermittently pull an iron chain ring in a clamping mode and conduct equal-distance traction on an iron chain. The auxiliary driving device is characterized in that two guiding plates are placed on a fixed bottom plate and are parallel mutually; a sliding groove is formed between the two guiding plates; grooves are formed in the opposite sides of the two guiding plates correspondingly and distributed horizontally; a guiding groove is formed in the fixed bottom plate and corresponds to the sliding groove; an opening part of the guiding groove is provided with a rubber strip;one end of a vertical plate is perpendicularly placed on the fixed bottom plate and located on one side of the sliding groove; a dovetail groove is formed in the fixed bottom plate and located in theother side of the sliding groove; a sliding frame is slidably placed in the dovetail groove; and one end of an elastic pressing plate is connected with the sliding frame through a plurality of fixingscrews, and the other end of the elastic pressing plate is placed over the sliding groove.

Description

technical field [0001] The invention relates to an auxiliary drive device for transmission iron chains in building construction, which relates to a device for auxiliary driving of iron chains that need equidistant movement and traction during building construction, and belongs to the field of building construction. In particular, the utility model relates to an auxiliary driving device which drives a pressing block to clamp and pull an iron chain ring intermittently and equidistantly pulls an iron chain through two cams cooperating with each other. Background technique [0002] At present, during construction, it is necessary to use iron chains for transmission to drive or transmit heavy objects. The iron chain is matched with the sprocket, and the chain ring is used as the force point of the transmission. With long-term contact, the sprocket and chain ring will Abrasion occurs, so that there is indirect force transmission and slipping during chain transmission. Under long-t...

AI Technical Summary

Problems solved by technology

[0002] At present, during construction, it is necessary to use iron chains for transmission to drive or transmit heavy objects. The iron chain is matched with the sprocket, and the chain ring is used as the force point of the transmission. With long-term contact, the sprocket and chain ring will Abrasion occurs, so that there is indirect force transmission and slipping during chain transmission. Under long-term action, the iron chain will elongate, resulting in changes in the transmission distance, affecting the distance of each transmission of the iron chain. Weld limit rods on both sides of the chain, by observing the stroke of the limit rods, and cooperate with the travel switch to control the effective driving length of the chain, but after the chain link is extended by tension, the distance between the limit rods will also be extended accordingly. The transmission distance will change, and the wear of the sprocket will cause the iron chain to fall back, which will affect the limit fixing effect. Driven by the motor, when the load is large, the force on the power shaft will increase, which cannot be relieved.

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