Disc curved wheel-based stepless variable-speed transmission mechanism

Abstract

The invention discloses a disc curved wheel-based stepless variable-speed transmission mechanism which comprises at least one curved wheel set and at least one conical wheel set, wherein the curved wheel set comprises a curved wheel axle and at least two curved wheels, the conical wheel set comprises a conical wheel axle and at least one conical wheel, the conical wheel shaft axle is in parallel to the curved wheel axle, the two curved wheels are connected with the curved wheel axle respectively, the conical wheel is connected with the conical wheel axle, the two curved wheels are arranged adjacently to the conical wheel respectively, and the conical surfaces of the conical wheel are in contact transmission with the adjacent curved surfaces of the two curved wheels. The working radius of the conical wheel is changed by adjusting the distance between the conical wheel axle and the curved wheel axle, so as to achieve the stepless variable-speed transmission effect. The disc curved wheel-based stepless variable-speed transmission mechanism can be applied to the transmission field of different types of vehicles and machines.

Description

technical field [0001] The invention relates to the technical field of stepless speed change of bevel wheels in mechanical friction transmission, in particular to a stepless speed change transmission mechanism of disc curve wheels. Background technique [0002] The cone wheel continuously variable transmission mechanism has the advantages of stable transmission, low noise, simple structure, overload protection effect, and various forms, and has a wide range of applications; however, in the cone wheel continuously variable transmission mechanism When working with load and friction, due to the geometric shape of the cone wheel and the contacted transmission element, the speed distribution of the contact area of ​​the two rolling elements is different, and geometric sliding will occur between the two rolling elements, which will cause heat and wear of the transmission mechanism , Low transmission efficiency and other shortcomings. [0003] In the prior art, in order to reduce ...

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Problems solved by technology

[0002] The cone wheel continuously variable transmission mechanism has the advantages of stable transmission, low noise, simple structure, overload protection effect, various forms, etc., and has a wide range of applications; however, in the cone wheel continuously variable transmission mechanism When working with load and friction, due to the geometric shape of the cone wheel and the contacted transmission element, the speed distribution of the contact area of ​​the two rolling elements is different, and geometric sliding will occur between the two rolling elements, which will cause heat and wear of the transmission mechanism , low transmission efficiency and other disadvantages

[0003] In the prior art, in order to reduce the geometric slip rate in the cone wheel continuously variable transmission mechanism, many cone wheel continuously variable transmission mechanisms will minimize the contact area between the cone wheel and the contacted transmission elements according to the size of the transmission power , to reduce the geometric slip rate; if the geometric slip rate in the continuously variable transmission mechanism of the bevel wheel is to be minimized, only when the contact area between the bevel wheel and the contacted transmission element is a point contact, in theory There will be no geometric sliding, and the transmission efficiency at this time is also the highest. However, the smaller the contact area between the bevel wheel and the contacted transmission element, the worse the load-carrying capacity and the lower the transmission power; how to solve the above-mentioned technology Problem, at present, there is no better solution in this technical field

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