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Speed variation device

A technology of speed change device and transmission ball, applied in the direction of transmission device, friction transmission device, transmission device control, etc., can solve the problems of poor shifting smoothness and small scalar, so as to improve the smoothness of shifting, facilitate adjustment of shifting, and increase linkage The effect of stability

Active Publication Date: 2019-12-24
吴丹凤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the vector direction of the control trajectory is the same as that of the speed regulation stroke, and the scalar quantity is small, the adjustment of the speed regulation stroke is relatively fast, and the smoothness of shifting and shifting is poor.

Method used

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Embodiment

[0047] A speed change device, referring to figure 2 , which includes a main shaft 14, on which the first fixed ring 2 and the second fixed ring 3 and the adjusting ring 4 embedded in the inner circumference of the first fixed ring 2 are sleeved; the first fixed ring 2 and the second fixed ring 3 It is fixedly connected, and the second fixed ring 3 is fixedly connected with the main shaft 14, while the adjusting ring 4 is connected with the main shaft 14 in rotation.

[0048] refer to figure 2 , a number of transmission balls 1 are embedded between the first fixed ring 2 and the second fixed ring 3, the number of transmission balls 1 is at least 3, and the number of transmission balls 1 in this embodiment is 6, so that the transmission can be ensured Stability; a positioning shaft 11 is pierced in the middle of the transmission ball 1, and a centering bearing 12 is set on the positioning shaft 11, and a centering hole 13 cooperating with the centering bearing 12 is provided ...

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Abstract

The invention discloses a speed variation device which relates to the field of transmission devices and aims to solve the problem that smoothness of gear shifting and speed variation of a traditionalnon-step speed variation star-wheel transmission device is poor. The technical solution mainly comprises multiple transmission balls, an input ring and an output ring linked up with the transmission balls, a positioning shaft which enables rotation of the transmission balls around the positioning shaft, as well as an adjustment ring which controls swaying of the positioning shaft. Tow ends of thepositioning shaft are connected to a first fixed ring and a second fixed ring which cover a transmission ball cover inside, and a slide hole and a slide groove used for swaying of the positioning shaft are formed in the first fixed ring and the second fixed ring respectively; the adjustment ring is embedded on inner circumference of the first fixed ring and a curved adjustment groove is formed inthe outer wall; and one end of the positioning shaft is embedded into the slide groove, the other end passes through the slide hole and is embedded in the adjustment groove, and swaying of the positioning shaft can be controlled through rotation of the adjustment ring. The speed variation device disclosed by the invention enhances speed variation smoothness.

Description

technical field [0001] The present invention relates to the field of transmission devices, more specifically, it relates to a speed change device. Background technique [0002] The speed change device is suitable for various fields such as mechanical equipment, bicycles, electric vehicles, automobiles, etc., wherein the bicycle speed change transmission device changes the speed of the vehicle by changing the cooperation of the chain and the gear plates of different front and rear sizes. [0003] The continuously variable star gear transmission abandons the traditional shifting method of shifting the chain from one gear to another, and uses two rotating discs and a set of balls between them to perform the shifting. [0004] figure 1 It is a schematic diagram of the shifting principle of the infinitely variable speed star wheel transmission device, including a pillar 101, and a pole 102 is symmetrically arranged on the pillar 101, and a rotating shaft 103 is connected between...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H15/40F16H63/30
CPCF16H15/40F16H63/30F16H15/28
Inventor 吴丹凤
Owner 吴丹凤