Clutches for multi-speed automatic transmissions

A technology for automatic transmissions and clutches, applied in fluid-driven clutches, non-mechanical-driven clutches, clutches, etc., can solve the problems of long axial length of the clutch part, longer axial dimension of the transmission, and unfavorable layout of the whole vehicle, etc., to achieve shaft The effect of shortening the size, reducing the axial length, and compressing the length

Active Publication Date: 2019-07-12
SHAANXI FAST GEAR CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the current multi-speed automatic transmission with Simpson structure, the clutch part usually includes two clutches, and the scheme of arranging each clutch hub, pressure oil chamber, piston, balance oil chamber and balance piston in sequence in the axial direction is generally adopted. Due to the arrangement of a large number of related components of a clutch, the axial length of the clutch part is longer, which affects the length of the entire transmission.
When the gear is further increased, on the basis of the longer clutch part, the increased planetary row further increases the length of the transmission, which is very unfavorable to the layout of the vehicle, which reduces the number of models that can be matched, resulting in increased gears. Transmissions are not competitive due to longer axial dimensions

Method used

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  • Clutches for multi-speed automatic transmissions
  • Clutches for multi-speed automatic transmissions

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Embodiment Construction

[0036] The specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings, but the present invention is not limited to this embodiment. In order to provide the public with a thorough understanding of the present invention, specific details are specified in the following preferred embodiments of the present invention.

[0037] like figure 1 As shown, a clutch for a multi-gear automatic transmission includes two groups of clutches (first clutch C1 and second clutch C2), input shaft 1, support shaft 2, piston housing 4 and sun gear input hub 17; the first clutch Including the first piston 5, the first balance piston 8, the first friction plate 14, the first dual plate 13, the first back plate 12, the first return spring 10, the first input hub 6 and the first output hub 15; The second clutch includes a second piston 7, a second balance piston 9, a second friction plate 20, a second counter plate 21, a second back plat...

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Abstract

The invention discloses a clutch for a multi-gear automatic speed transmission. The clutch comprises an input shaft, a first clutch and a second clutch, wherein a support shaft is arranged on the input shaft; the first clutch and the second clutch are arranged on the support shaft in an embedding manner in the radial direction of the input shaft; all pressure chambers and balance chambers are well arranged; and all pressure oil passages, balance oil passages and lubricating oil passages are reasonably arranged. The clutch can meet basic functions and is short in axial size.

Description

[0001] 【Technical field】 [0002] The invention relates to a clutch for a multi-gear automatic transmission, belonging to the technical field of automatic transmissions. [0003] 【Background technique】 [0004] In a multi-gear automatic transmission, the clutch is an indispensable part; the clutch is usually composed of a clutch hub, a piston, a balance piston, a friction plate, a dual plate, a return spring and a sealing element; at the same time, an independent power supply is designed on the clutch Oil channels and lubrication channels. [0005] The working principle of the clutch is to push the piston forward under the action of pressure oil, so that the friction plate and the counter plate are completely compressed, and torque transmission is realized between the parts connected to the friction plate and the parts connected to the counter plate; when not needed When the torque is transmitted, the pressure oil is released, the piston returns under the action of the return ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D25/0635F16D25/12
CPCF16D25/0635F16D25/123
Inventor 周能文严鉴铂刘义王亚锋张海涛葛敬广
Owner SHAANXI FAST GEAR CO
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