Anti-detachment chainwheel having forced recessed face at chain tooth root portion

Abstract

The present invention provides a novel anti-detachment chainwheel having forced recessed face at chain tooth root portion, which comprises an application structure of single-transmission rotation and bi-transmission rotation, in which a chain roller (110) sleeved on a chain connecting pivot shaft (109) can be tightened engaged at a forced recessed face at chain tooth root portion (104) while the chainwheel being driven by a chain, thereby improving the shortage of the chain being easily detached from the chainwheel.

Description

technical field [0001] The invention is the first anti-off sprocket with a stressed concave surface at the root of the sprocket surface. When the chain drives the sprocket, the chain roller set by the chain connecting pivot can be pressed against the stressed concave surface at the root of the sprocket surface. Into the surface, thereby improving the shortcoming that the chain is easy to detach from the sprocket. Background technique [0002] Traditional sprockets are usually for two-way force transmission, such as figure 1 , figure 2 and image 3 As shown in , its sprockets usually have a symmetrical structure, and in order to smoothly guide the chain 106 into the sprocket during transmission, the tooth shape and the chain connecting pivot 109 set between the lateral connecting pieces of the chain are sheathed through. Between the chain rollers 110, there must be tooth tips 105 on the outside and tooth surfaces 103 with a wide symmetrical mountain-shaped slope at the ba...

AI Technical Summary

Problems solved by technology

[0002] Traditional sprockets are usually for two-way force transmission, such as figure 1 , figure 2 and image 3 As shown in , its sprockets usually have a symmetrical structure, and in order to smoothly guide the chain 106 into the sprocket during transmission, the tooth shape and the chain connecting pivot 109 set between the lateral connecting pieces of the chain are sheathed through. Between the chain rollers 110, there must be tooth tips 105 on the outside and tooth surfaces 103 with a wide symmetrical mountain-shaped slope at the base of the inside chain teeth. The disadvantage of this is: when the chain pulls on the sprocket, the slope of the chain teeth is always there. The tendency of the sprocket to disengage outwards, especially when the number of sprockets covered by the chain is small, or when the chain swings in a centrifugal direction due to high-speed transmission and load changes, the chain often falls off, and its disadvantages are more obvious

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