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Three-speed transmission

A speed change device, the same technology, applied in the transmission device, vehicle gearbox, gear transmission device, etc., can solve the problems of low processing efficiency and complex structure

Active Publication Date: 2017-04-26
SHANXI GUOLI INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of complex structure and low processing efficiency of existing gear transmission devices, the present invention provides a three-speed transmission device

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0115] Such as Figure 3a As shown, the B clutch is a friction plate type helical surface external compression overrunning clutch, including a clutch limiter T27, a fixed component T22, a rotating component T21, a self-locking / overrunning control device and an additional clutch control device arranged on the same rotation axis.

[0116] The fixed assembly T22 includes a first force transmission drum T221 and a plurality of first friction plates T222 arranged on the first force transmission drum T221, the first friction plates T222 can slide relative to the first force transmission drum T221 in the axial direction, The first friction plate T222 and the first force transmission drum T221 rotate synchronously along the circumferential direction.

[0117] The rotating assembly T21 includes a second force transmission hub T211 and a plurality of second friction plates T212 arranged outside the second force transmission hub T211, the second friction plates T212 can slide relative to...

Embodiment 2

[0130] Such as Figure 3b As shown, the B clutch is a friction disc type helical surface compression overrunning clutch, including a clutch limit device T27 arranged on the same rotation axis, a fixed component T22, a rotating component T21, a self-locking / overrunning control device and an additional clutch control device .

[0131] The fixed assembly T22 includes a first force transmission drum T221 and a plurality of first friction plates T222 arranged on the first force transmission drum T221, the first friction plates T222 can slide relative to the first force transmission drum T221 in the axial direction, The first friction plate T222 and the first force transmission drum T221 rotate synchronously along the circumferential direction.

[0132] The rotating assembly T21 includes a second force transmission hub T211 and a plurality of second friction plates T212 arranged outside the second force transmission hub T211, the second friction plates T212 can slide relative to th...

Embodiment 3

[0148] The B clutch is a friction plate type helical surface external compression overrunning clutch, which is similar to the structure of the B clutch in Embodiment 1, the difference is:

[0149] The first force transmission drum T221 is set inside the second force transmission hub T211;

[0150] The second helicoid coupling part T24 is fixedly connected with the second force transmission hub T211; the second helicoid coupling part T24 is located in the space formed by the second force transmission hub T211, the supporting body and the first helicoid coupling part T23.

[0151] The supporting body and the first force transmission drum T221 serve as two force transmission ends of the clutch respectively.

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Abstract

A three-speed transmission comprises a gear mechanism, a clutch C, a clutch B and a clutch D which are arranged along the same axis. The gear mechanism comprises an input gear, multiple intermediate shaft gear assemblies, an output gear and a gear holding frame assembly which is composed of a front holding frame, a middle holding frame and a rear holding frame and is provided with two cavities. The input gear, the gear holding frame assembly and the output gear are coaxially arranged and can rotate relatively in pairs. A center output shaft as a first power output end is arranged in the middle of the middle holding frame. The center output shaft is coaxially sleeved with a center output shaft pipe as a second power output end. A driving component of the clutch C is fixedly connected with an input shaft. A driven component is fixedly connected with the gear holding frame assembly. A rotary assembly of the clutch B is fixedly connected with the gear holding frame assembly. A fixing assembly is fixedly connected with a transmission shell. The clutch D is used for switching two kinds of output of the gear mechanism. Only one of the clutch B, the clutch C and the clutch D can be selected and locked. The three-speed transmission is simple in structure, low in machining precision requirement and convenient to design and manufacture.

Description

technical field [0001] The invention relates to a gear transmission device applied to a vehicle transmission. Background technique [0002] There are two types of existing gear transmissions: a fixed shaft type and a planetary gear type. [0003] Such as Figure 1a , 1b As shown, it is a schematic diagram of an existing planetary gear transmission, which is composed of three planetary rows, and each planetary row includes a gear P 1 , planetary gear P 2 , ring gear P 3 and planet carrier P 4 , the three planetary rows are combined together, through three clutches C 1 、C 2 、C 3 and three brake bands B 1 , B 2 , B 3 , coupled with the cooperation of the one-way clutch F, the gear P of each planetary row can be 1 , ring gear P 3 and planet carrier P 4 They are respectively used as active parts, passive parts or fixed parts, so that they can be combined into multiple gears. This type of transmission is often used in conjunction with a hydraulic torque converter bef...

Claims

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Application Information

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IPC IPC(8): F16H3/70F16D41/00
CPCF16D41/00F16H3/70F16H2200/2038
Inventor 韩文明潘亚敏
Owner SHANXI GUOLI INFORMATION TECH
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