Non-circular gear-based variable transmission mechanism

A technology of variable speed transmission and non-circular gears, which is applied to gear transmissions, transmissions, components with teeth, etc., can solve the problems of low transmission efficiency, complex structure, high cost, etc., and achieve low cost, simple speed change process, and easy to use long life effect

Inactive Publication Date: 2010-06-16
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this planetary automatic transmission also has some obvious disadvantages, such as complex structure, high cost, low transmission efficiency, high fuel consumption, etc.

Method used

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  • Non-circular gear-based variable transmission mechanism
  • Non-circular gear-based variable transmission mechanism
  • Non-circular gear-based variable transmission mechanism

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] As we all know, the non-circular gear speed change transmission mechanism has two characteristics: one is that it can change speed without stopping, that is, when changing the meshing transmission ratio of the driving wheel and the driven wheel, there is no need for the gear to stop running, but it can maintain the original speed. Under the premise, gear shifting is realized, thereby improving the operating efficiency of the mechanism; second, the speed change transmission mechanism is not limited to the transformation of one or two gears, and the mechanism can be used to realize the transformation of multi-stage transmission ratios.

[0027] see Figure 1 to Figure 4 , to introduce the general structure of the non-circular gear speed change transmission me...

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Abstract

The invention relates to a non-circular gear-based variable transmission mechanism. The mechanism is provided with a driving wheel, a plurality of driven wheels, transition gear teeth and transmission gear teeth, wherein the driving wheel and the plurality of driven wheels are fixedly arranged on a driving shaft and a driven shaft at a set included angle respectively, and have the same modulus of the gear teeth; the transition gear teeth and transmission gear teeth are positioned on a non-circular pitch curve between the adjacent driven wheels; the transition gear teeth and transmission gear teeth on the non-circular pitch curve are used for completing gear shifting of the driving wheel between the two adjacent levels of driven wheels, namely axial feed movement is applied to the driving wheel on the premise of keeping the rotating speed of the driving wheel invariable, so that the driving wheel can be meshed with the transition gear teeth, the transmission gear teeth and the transition gear teeth on the non-circular pitch curve between each level of driven wheels in sequence to complete gear shifting and variable speed without the process of stalling and clutching. The device abandons a clutch, realizes variable transmission between the two shafts by using a non-circular gear on the non-circular pitch curve, and has the characteristics of compact structure, precise transmission, reliability, stability and easy dynamic balance of non-circular gear transmission mechanisms.

Description

technical field [0001] The invention relates to a speed change transmission mechanism with an innovative structure, to be precise, relates to a speed change transmission mechanism based on non-circular gears, and belongs to the technical field of mechanical transmissions. Background technique [0002] The transmission is a mechanical transmission device that can change the transmission speed between the output shaft and the input shaft, and it is also a mechanical device that changes the operating speed or traction of machines such as machine tools, automobiles, and tractors. The transmission is usually installed between the driving shaft and the driven shaft of the engine, and can change the transmission ratio of the output shaft and the input shaft in a fixed or stepped manner. As a key component in many mechanical structures, the performance and efficiency of the transmission directly affect the operation of the entire machine. [0003] The gear transmission is a mechani...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/02F16H35/02F16H55/17
Inventor 廖启征魏世民郭磊王超
Owner BEIJING UNIV OF POSTS & TELECOMM
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