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Planetary gear transmission

A technology of planetary gears and transmissions, applied in gear transmissions, belts/chains/gears, brake types, etc., can solve problems such as easy slipping, inability to effectively transmit power, and increased costs

Active Publication Date: 2021-09-14
福建中青传动科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the application of the two units increases the cost and increases the volume of the transmission; the pressure required to press the friction plate is relatively high, generally around 5000N, if the pressure is small, it is easy to slip and cannot effectively transmit power, and the friction plate Easy to burn, in order to ensure the pressing force, it is bound to increase the volume, cost and energy loss of the gear shifting power source device

Method used

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Embodiment Construction

[0024] In order to make the above-mentioned features and advantages of the present invention easier to understand, the following specific embodiments are described in detail with reference to the accompanying drawings, but the present invention is not limited thereto.

[0025] refer to Figure 1-Figure 4 .

[0026] In a preferred embodiment of the present invention, a planetary gear transmission includes a housing 1, a planetary gear set 2, a brake assembly and a clutch assembly 3, and the brake assembly includes a wedge-shaped Block pair 4, the rear side of the wedge block pair is provided with a wedge block assembly, the front side is provided with a driver push plate 5, and the rear side of the wedge block assembly is provided with a support sheet 6.

[0027] In this embodiment, the wedge block assembly includes a wedge block friction plate 7, a connecting rod 8, an elastic body 9, and a blocking plate 10 arranged in sequence from front to back, and the wedge block frictio...

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Abstract

The invention discloses a planetary gear transmission. The transmission comprises a shell, a planetary gear set, a brake assembly and a clutch assembly, the brake assembly comprises a dual disc arranged between the shell and the planetary gear set, a wedge block assembly is arranged at the rear side of the dual disc, a driver push disc is arranged at the front side of the dual disc, and a supporting piece is arranged at the rear side of the wedge block assembly. The gear shifting process of the transmission is smooth, and power interruption is avoided; during braking, a traditional multi-piece friction plate is not needed, a one-way clutch is not needed, and a gear shifting mechanism is small in size; and in the braking process, force for pressing a multi-piece type friction pair is not needed, the requirement for power of a driver is low, and the size, cost and energy consumption of a braking unit power device can be greatly reduced.

Description

technical field [0001] The invention relates to a planetary gear transmission, in particular to a planetary gear transmission using a wedge block shifting mechanism. Background technique [0002] In the field of traditional automotive planetary gear transmissions, the braking unit of the shift actuator of planetary gear transmissions, multi-disc wet brakes and one-way overrunning clutches or band brakes and one-way overrunning clutches are commonly used at the same time. The wet brake makes the power transmission smooth and soft, and has a long service life. The application of the one-way overrunning clutch effectively eliminates the shock of downshifting, shortens the shifting time, and reduces energy loss. [0003] However, the application of the two units increases the cost and increases the volume of the transmission; the pressure required to press the friction plate is relatively high, generally around 5000N, if the pressure is small, it is easy to slip and cannot effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/44F16H57/08F16H57/10F16H61/04F16D55/00F16D67/02
CPCF16H3/44F16H57/08F16H57/10F16H61/04F16D55/00F16D67/02F16H2057/087F16D2055/0004
Inventor 刘建平
Owner 福建中青传动科技有限公司
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