Planetary gear continuously variable transmission

A technology of continuously variable transmission and planetary gear, which is applied in the direction of gear transmission, belt/chain/gear, mechanical equipment, etc., can solve the problem of insensitive speed regulation, and achieve the effect of simple structure, simple principle and wide speed range

Inactive Publication Date: 2010-09-08
DALIAN JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The proposal of the present invention aims to provide a planetary gear continuously variable transmission with an external meshing double planetary gear train with an independent speed regulating device, which overcomes the problem that the single planetary gear train needs to use an eccentric output mechanism and the speed regulation is not sensitive

Method used

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  • Planetary gear continuously variable transmission
  • Planetary gear continuously variable transmission

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Embodiment Construction

[0019] Such as figure 1 A planetary gear continuously variable transmission is shown, in which the planetary gear train belongs to the WW type external meshing double planetary gear train, the input speed is the speed of the center wheel I 7, and the number of revolutions of the input shaft 1 is n 入 =1500r / min, the stepless speed regulating device 16 adopts the frequency conversion motor, the rotating speed is 0~3000r / min, through the fixed ratio transmission, the gear ratio of the speed regulating gear and the tie rod is 60:47, the rotating speed of the tie rod can be reduced to 0~2350r / min; the output speed is center wheel II 27 speed. The tooth shape of the planetary gear and the center wheel adopts the involute tooth shape, and adopts iab出 =3n 入 -2n 调 . no 入 =1500r / min, when n 出 = 0, n 调 =1.5n 入 , when n 调 = 0, n 出 =3n 入 , when n 出 =n 入 when n 调 =n 入 , when n 出 =-n 入 / 10, n 调 =1.55n 入 . Realize the stepless speed change of the output speed from -150 to ...

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Abstract

The invention relates to a planetary gear continuously variable transmission, which comprises a box body in which a dual planetary gear train and an ordinary gear train are installed, and is characterized in that the ordinary gear train comprises a speed control gear I, a speed control gear II, a speed control gear shaft and a continuously variable transmission device, and the dual planetary gear train comprises an input shaft, a central gear I, a planetary gear I, a tie bar I, planetary axles, an output shaft, a central gear II, a planetary gear II and a tie bar II; the tie bar I is supported on an input flange, is provided with external cylindrical teeth and is externally meshed with the speed control gear I of the ordinary gear train, and the tie bar II is supported on an output flange, is provided with external cylindrical teeth and is externally meshed with the speed control gear II of the ordinary gear train; the planetary axles are respectively supported in the tie bar I and the tie bar II, and the planetary gear I and the planetary gear II are respectively and externally meshed with the central gear I and the central gear II; and the size parameters of the speed control gears I and II are same, and the size parameters of the external teeth of the tie bar I and the tie bar II are same. The invention solves the problems that the existing single planetary gear chain uses an eccentric output mechanism and has insensitive speed control.

Description

technical field [0001] The invention relates to a gear transmission device for transmitting rotary motion or reversing rotary motion with a variable speed ratio. It adopts a combined structure of two planetary gear trains, the planetary frame is shared, and the two planetary gears are fixed on the same shaft. The planetary gear Mesh with the two sun gears respectively, without the sun gear of the inner ring gear, the two sun gears are used as input and output respectively, and the planet carrier is connected with the speed change device through the gear, as the speed regulating wheel, which belongs to a planetary gear stepless transmission . Background technique [0002] The continuously variable transmission can freely change the transmission ratio, so as to realize the whole process of continuously variable speed. The speed of the car is constantly changing, which requires the car's transmission system to have as many transmission ratios as possible. It is necessary to us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/76
Inventor 邵万珍田一吴岳
Owner DALIAN JIAOTONG UNIVERSITY
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