A planetary gear transmission mechanism

A speed change mechanism and planetary gear technology, which is applied in vehicle gearboxes, gear transmissions, gear lubrication/cooling, etc., can solve problems such as high assembly complexity and complex design of clutch oil supply channels, and achieve good cooling and lubrication effects, The design of the hydraulic oil circuit is simple and the effect of economical improvement

Active Publication Date: 2021-07-20
BEIHANG UNIV
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Problems solved by technology

[0004] In addition, the design of the brake oil supply oil passage is simple, and the hydraulic oil can be directly supplied from the transmission housing to the brake piston chamber, while the design of the clutch oil supply oil passage is complex, and the hydraulic oil needs to pass through the rotating shaft and needs to be between the housing and the rotating shaft Increase the dynamic seal, high assembly complexity

Method used

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  • A planetary gear transmission mechanism

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[0026] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0027] The present invention will be further described below in conjunction with the accompanying drawings and examples. It should be understood that the following examples are intended to facilitate the understanding of the present invention, and have no limiting effect on it.

[0028] Such as figure 1 Shown, 1. A planetary gear transmission mechanism, comprising: seven transmission components, shift elements, planetary gear sets, housing, wherein,

[0029] The seven transmission members include the first transmission member 1, the second transmission member 2...

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Abstract

The invention discloses a planetary gear transmission mechanism, which adopts 4 planetary gear sets, including 1 positive sign planetary row, 3 negative sign planetary rows, 7 transmission components, 6 shifting elements, including 2 clutches, 4 There are 1 brake, 4 brakes nested planetary arrangement, 2 clutches are located at the front of the transmission, and the structure layout is more compact. In the present invention, each gear position closes two shifting elements, which can realize 9 forward gears and 1 reverse gear, and as the number of gears increases, a wider speed ratio range and a more uniform transmission step ratio can be obtained .

Description

technical field [0001] The invention belongs to the technical field of vehicle transmissions, in particular to a vertical planetary gear transmission mechanism used in a vehicle transmission system. Background technique [0002] It has become a consensus in the industry that hydromechanical automatic transmissions are rapidly developing toward multi-gear, lightweight, and high-efficiency. The more gears there are, the wider the range of transmission ratios they can achieve. Although the development of multi-gear can obtain a wider speed ratio range and a more uniform transmission step ratio, the structural layout design will gradually become more complicated. Therefore, under the premise of ensuring the theoretical design, the assembly of the actual components of the automatic transmission and the reasonable and compact layout of the automatic transmission's mechanical-electrical-hydraulic-control devices should be fully considered to design an automatic that is in line with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/62F16H3/70F16H57/023F16H57/08F16H57/04
CPCF16H3/62F16H3/70F16H57/023F16H57/043F16H57/0471F16H57/082F16H2200/0065F16H2200/0082F16H2200/2012F16H2200/2046
Inventor 徐向阳董鹏赵俊玮郭伟王书翰刘艳芳
Owner BEIHANG UNIV
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