Transmission chain servo automatic tensioning device

Abstract

The invention relates to a transmission chain servo automatic tensioning device and belongs to the technical field of mechanical transmission. The transmission chain servo automatic tensioning devicecomprises a base, a spring mechanism upper support plate, a spring, an arc-shaped tensioning block bracket, an arc-shaped tensioning block, a spring mechanism lower support plate and a triangular bracket. According to the transmission chain servo automatic tensioning device, the arc-shaped tensioning block swings along with the transmission chain; when the transmission chain is pushed open outwards, the tensioning device compresses the spring to keep the tensioning state and is forced to move outwards, and the arc-shaped tensioning block applies counter-acting force to tension the transmissionchain; when the transmission chain relies on the dead weight to return, the tensioning device enables the arc-shaped tensioning block to automatically compress the transmission chain through springback of the spring, so that the tensioning function of the transmission chain is realized; and during the entire working process of the transmission chain, the arc-shaped tensioning block is always in contact with the transmission chain, so that the purpose of tensioning the transmission chain from beginning to end is realized, and the problem that the transmission chain tensioning device cannot better meet the driving function of the transmission chain to cause that the transmission chain frequently has gear jumping or abruption is solved.

Description

technical field [0001] The invention belongs to the technical field of mechanical transmission, and in particular relates to a follow-up automatic tensioning device for a transmission chain. Background technique [0002] At present, the structure adopted by domestic and foreign transmission chain tensioning devices is that the chain tensioning wheel fine-tunes the fixed structure through the strip hole, which can meet the requirement that the relative position of the driving gear motor and the main transmission shaft remain unchanged, and the fixed chain tensioning wheel is used for tensioning. The transmission chain drives the transmission shaft to realize the functional requirements of the power drive. However, the transmission chain of the net plate cleaning device at the outlet of the tobacco re-drying machine is a follower mechanism, and the transmission chain tensioning device adopts the traditional strip-shaped hole fine-tuning fixed structure to realize the tensionin...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems existing in the background technology, the present invention proposes a transmission chain follow-up automatic tensioning device to solve the problem that the transmission chain tensioning device cannot better satisfy the driving function of the transmission chain, resulting in frequent tooth jumps or pulls in the transmission chain. The problem of interrupted salient phenomena

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