Chain transmission tensioning device

Abstract

The invention discloses a chain transmission tension device for tensioning and regulating the chain in the chain transmission, comprising a tension sprocket, a support shaft, a regulating board, a regulating bolt, an adjusting block and a spring; the regulating board is provided with a longitudinal long groove and a regulating hole communicated with the longitudinal long groove; the adjusting block is installed in the longitudinal long groove and is connected with the regulating board in sliding manner; the top end of the support shaft passes through the tension sprocket and is pivoted with the tension sprocket; the tail end of the support shaft is installed in the longitudinal long groove and is connected with the regulating board in sliding manner; one end of the spring is abutted against the adjusting block and the other end thereof is abutted against one side of the support shaft; and the regulating bolt passes through the regulating hole and is abutted against the other end of the support shaft. The chain transmission tension device not only has simple structure and easy process, but also has automatic application function, smoothness and reliability, convenient operation, easy regulation and wide application.

Description

technical field [0001] The invention relates to a tensioning device, in particular to a tensioning device for chain tensioning and adjusting chain transmission in chain transmission. Background technique [0002] Traditional transmission methods include gear transmission, sprocket transmission, chain transmission, etc., among which gear transmission and sprocket transmission are not suitable for places where the distance between the two sprockets in power transmission is long, and chain transmission is not only suitable for Long-distance transmission, and because of its reliable operation, inelastic sliding and slipping phenomenon, it has been widely used in various machines and penetrated into various fields of machinery manufacturing, such as agriculture, mining, lifting transportation, metallurgy, construction, petroleum, chemical and other mechanical equipment . However, the chain drive can only be used for the same direction of rotation between two parallel shafts. It ...

AI Technical Summary

Problems solved by technology

[0003] The chain tensioning device usually consists of a tensioning sprocket and a tensioning force adjustment device. The existing chain tensioning device not only has a complex structure, but also has many parts and high cost, and it also adjusts the tension of the tensioning sprocket. The operation of the force adjustment device is complicated and the reliability is poor; moreover, the tension adjustment device in the prior art cannot automatically adjust the tension force of the chain after the chain becomes longer due to wear and tear, so that the transmission accuracy is reduced, and the maintenance-free state cannot be realized. If the operator cannot find and adjust the tension of the chain in time, there will be problems such as poor meshing and tension sprocket falling off

In addition, due to the rough tension applied to the chain by the existing chain tensioning device and no vibration damping and buffering structure, when the entire transmission system jumps, there is a high probability of tooth jumping and chain vibration problems, which affect the stability of the chain transmission process. sex

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