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Chain transmission movable tensioning mechanism

A tensioning mechanism and chain drive technology, applied in transmission devices, mechanical equipment, belts/chains/gears, etc., can solve the problems of off-chain, time-consuming and labor-intensive, and complicated empty-handed chain installation, and achieve the effect of fast winding

Inactive Publication Date: 2012-01-25
郑霞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, a shortcoming of the chain drive is that once there is a dislocation between the chain and the sprocket, it will cause a detachment phenomenon. However, the current chain drive mechanism only includes a fixed-position driving wheel and a driven wheel. When the detachment phenomenon occurs, In the case of empty hands, it is difficult to put the chain back in place, especially when the bicycle is unchained halfway, the operation of empty-handed chaining is very complicated, often time-consuming and laborious, and distressing

Method used

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  • Chain transmission movable tensioning mechanism
  • Chain transmission movable tensioning mechanism
  • Chain transmission movable tensioning mechanism

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Embodiment Construction

[0015] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0016] exist figure 1 , figure 2 In the shown embodiment, the chain transmission activity tensioning mechanism includes a base (not shown), a driving sprocket 2, a driven sprocket 1, and a chain 4, and the chain 4 is wound around the driving sprocket 2 and the driven sprocket. On the driven sprocket 1; wherein, the diameter of the driving sprocket 2 is larger than the driven sprocket 1, and a supporting sprocket 3 is also provided on the outside of the driven sprocket 1, and the supporting sprocket 3 and the driving sprocket 2 1. The driven sprocket 1 tensions the chain 4 together; the supporting sprocket 3 is pivotally connected to an elastic rod 13 fixed on the base.

[0017] The elastic rod 13 is an arc-shaped rubber rod that arches toward the inner side of the curve surrounded by the chain 4 .

[0018] One end of the elastic rod 13 is fixed on the correspo...

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PUM

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Abstract

The invention provides a chain transmission movable tensioning mechanism, which comprises a base, a driving chain wheel, a driven chain wheel and a chain, wherein the chain is wound on the driving chain wheel and the driven chain wheel, the outer side of the driving chain wheel or the outer side of the driven chain wheel is also provided with a support chain wheel, the support chain wheel, the driving chain wheel and the driven chain wheel simultaneously tension the chain, and the support chain wheel is pivoted with an elastic rod fixedly connected with the base. The mechanism has the advantages that the chain transmission can be effectively realized, and in addition, the chain can be conveniently reset when the chain falls off.

Description

Technical field [0001] The present invention relates to a mechanical transmission structure, especially a chain transmission structure, including a sprocket and a chain. Background technique [0002] In the field of mechanical transmission, chain transmission is a common transmission mechanism, which includes a sprocket and a chain. The driving wheel pulls the chain and drives the driven wheel to rotate. Because the chain transmission has the advantages of large transmission distance, large transmission torque, and stable transmission speed, it is widely used in various low-speed transmission systems, such as bicycles, tricycles and other vehicle devices. [0003] However, a shortcoming of the chain drive is that once there is a dislocation between the chain and the sprocket, it will cause a detachment phenomenon. However, the current chain drive mechanism only includes a fixed-position driving wheel and a driven wheel. When the detachment phenomenon occurs, Under the situa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H7/08
Inventor 郑霞
Owner 郑霞