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Seven-gear planetary gear transmission

A technology of gear transmission and planetary gear, applied in the direction of vehicle gearbox, gear transmission, belt/chain/gear, etc. Effect

Inactive Publication Date: 2020-02-18
贵州凯星液力传动机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the seven-speed planetary automatic transmission for mainstream road vehicles has a relatively large speed ratio between the first gear and the second gear. Therefore, it is necessary to find a seven-speed planetary automatic transmission.

Method used

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  • Seven-gear planetary gear transmission
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Embodiment Construction

[0023] The technical solution of the present invention is further described below, but the scope of protection is not limited to the description.

[0024] Such as figure 1 As shown, it is a schematic diagram of the connection relationship of each component of the present invention. In the figure, P1-P4 are planetary rows, T1-T4 are sun gears, Q1-Q4 are ring gears, J1-J4 are planetary carriers, M1-M4 are brakes, C1 ~C2 is a clutch, 1 is an input member, 2 is an output member, and 3-7 are transmission members.

[0025] The planetary automatic transmission of this proposal is suitable for road vehicles. Among them, the planetary rows are arranged in order, and the transmission components are used to connect each planetary row. The input shaft is connected to the input member 1, which is generally the turbine shaft of the hydraulic torque converter, and is used to transmit the power of the engine through the hydraulic torque converter. to the transmission. The output shaft is c...

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Abstract

The invention relates to a seven-gear planetary gear transmission, and particularly relates to a seven-gear planetary automatic transmission which is mainly used for a vehicle driving system. The transmission comprises an input component, an output component, transmission components, brakes, clutches and planetary rows, wherein the four planetary rows are provided; the four brakes are provided; the two clutches are provided; and the five transmission components are provided. According to the seven-gear planetary automatic transmission, the scheme of the four planetary rows, the four brakes andthe two clutches is adopted, seven forward gears and two reverse gears are achieved, the structure is simple and compact, the space occupied by the transmission is reduced, the transmission ratio range is wide, the ratio is small, and the power of an engine can be fully utilized under different working conditions.

Description

technical field [0001] The invention belongs to the technical field of mechanical transmission devices, and in particular relates to a seven-speed planetary gear transmission. Background technique [0002] The transmission system is one of the basic components of the vehicle. It is used to transmit the engine power, and can change the speed and traction of the vehicle as required when driving in a straight line. The transmission system also realizes the reversing and parking of the vehicle. The transmission is a very important part of the transmission system. At present, mainstream road vehicles use a seven-speed planetary automatic transmission with a relatively large speed ratio between the first gear and the second gear. Therefore, it is necessary to find a kind of seven-speed planetary automatic transmission. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the present invention provides a seven-speed planetary automatic tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/66
CPCF16H3/66F16H2200/0056F16H2200/0086F16H2200/2012F16H2200/2046
Inventor 罗静杨娟
Owner 贵州凯星液力传动机械有限公司
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