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A planetary gear stepless transmission

A continuously variable transmission, planetary gear technology, applied in the direction of gear transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of poor fuel economy, low transmission efficiency, small transmission torque, etc., and achieve higher fuel economy. The effect of high stability, large transmission torque and large load capacity

Inactive Publication Date: 2011-12-21
NANJING INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems of small transmission torque, low transmission efficiency, low reliability and poor fuel economy of the metal belt continuously variable transmission (CVT) commonly used now, the present invention proposes a planetary gear continuously variable transmission

Method used

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  • A planetary gear stepless transmission
  • A planetary gear stepless transmission
  • A planetary gear stepless transmission

Examples

Experimental program
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Effect test

Embodiment 1

[0043] The planetary gear continuously variable transmission of the present invention includes a planetary gear continuously variable transmission, and the planetary gear continuously variable transmission includes a first input shaft 2, a second input shaft 8, a one-way clutch 9, a gear 3, and a planetary ring gear 4 , planetary gear 1, first planetary carrier 7, sun gear 0, second planetary carrier 5 and output shaft 6, the power of the planetary gear stepless transmission through the first input shaft 2 and the second input shaft 8 two degrees of freedom input to realize the function of stepless speed change; the second input shaft 8 is in line with the output shaft 6, the second input shaft 8 is just connected with the sun gear 0, the sun gear 0 meshes with the planetary gear 1, and the second input shaft 8 is in mesh with the planetary gear 1. The turntable arms of the two planetary carriers 5 pass through the shaft centers of the same number of planetary gears 1 and can r...

Embodiment 2

[0046] The planetary gear continuously variable transmission of the present invention includes a planetary gear continuously variable transmission, and the planetary gear continuously variable transmission includes a first input shaft 2, a second input shaft 8, a one-way clutch 9, a gear 3, and a planetary ring gear 4 , planetary gear 1, first planetary carrier 7, sun gear 0, second planetary carrier 5 and output shaft 6, the power of the planetary gear stepless transmission through the first input shaft 2 and the second input shaft 8 two degrees of freedom input to realize the function of stepless speed change; the second input shaft 8 is in line with the output shaft 6, the second input shaft 8 is just connected with the sun gear 0, the sun gear 0 meshes with the planetary gear 1, and the second input shaft 8 is in mesh with the planetary gear 1. The turntable arms of the two planetary carriers 5 pass through the shaft centers of the same number of planetary gears 1 and can r...

Embodiment 3

[0049] The planetary gear continuously variable transmission of the present invention includes a planetary gear continuously variable transmission, and the planetary gear continuously variable transmission includes a first input shaft 2, a second input shaft 8, a one-way clutch 9, a gear 3, and a planetary ring gear 4 , planetary gear 1, first planetary carrier 7, sun gear 0, second planetary carrier 5 and output shaft 6, the power of the planetary gear stepless transmission through the first input shaft 2 and the second input shaft 8 two degrees of freedom input to realize the function of stepless speed change; the second input shaft 8 is in line with the output shaft 6, the second input shaft 8 is just connected with the sun gear 0, the sun gear 0 meshes with the planetary gear 1, and the second input shaft 8 is in mesh with the planetary gear 1. The turntable arms of the two planetary carriers 5 pass through the shaft centers of the same number of planetary gears 1 and can r...

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Abstract

The invention discloses a novel gear continuously variable transmission, aiming to provide a continuously variable transmission with large transmission torque, high transmission efficiency, good reliability and good fuel economy. The present invention includes a first input shaft, a second input shaft, a one-way clutch, a gear, a planetary ring gear, a planetary gear, a first planetary carrier, a sun gear, a second planetary carrier and an output shaft, and the planetary gear continuously variable transmission passes through The power input of two degrees of freedom of the first input shaft and the second input shaft realizes the function of stepless speed change. The invention has the advantages of simple structure and convenient manufacture, and can effectively realize the stepless speed change function.

Description

technical field [0001] The present invention relates to a kind of speed changer, more specifically, relate to a kind of planetary gear continuously variable speed changer. Background technique [0002] There are generally two types of transmission mechanisms in automobiles, one is a stepped transmission and the other is a continuously variable transmission. A stepped transmission is a traditional gear-shift transmission. This kind of transmission is difficult to operate, complicated to change gears, high in fuel consumption, and has a certain impact on engine life; while a continuously variable transmission starts smoothly, and the best one can be selected according to different driving conditions. The optimal transmission ratio can also be used to select the best driving speed and throttle size according to the best economy under any transmission power, which can make the engine of the car always maintain a constant speed during the whole running process no matter what spee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/76
Inventor 许耕
Owner NANJING INST OF TECH
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