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Two-stage type planet gear automatic transmission

A technology for automatic transmissions and planetary gears, applied in gear transmissions, vehicle gearboxes, belts/chains/gears, etc., can solve the problems of insufficient compact structure of automatic transmissions, many actuators changing, and many actuators, etc., so that it is not easy to move Effects of less interference, fewer actuator changes, and fewer actuators

Active Publication Date: 2016-09-07
桐乡市中元建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing dual-clutch automatic transmission generally adopts a parallel-shaft gear structure. The structure of the automatic transmission with this structure is not compact enough, and there are many actuators, and the actuators change during gear shifting, which is easy to cause motion interference.

Method used

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  • Two-stage type planet gear automatic transmission

Examples

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Effect test

Embodiment Construction

[0011] figure 1 As shown, it involves a two-stage planetary gear automatic transmission, including: a front row ring gear 8, a front row sun gear, a front row planet carrier, a front row first planetary gear 11 and a front row second planetary gear 9 Front row double-stage planetary gear mechanism; rear row double-stage planetary gear mechanism composed of rear row ring gear 15, rear row sun gear, rear row planet carrier, rear row first planetary gear 13 and rear row second planetary gear 14; Wherein, the front sun gear and the rear sun gear are made into a common front and rear sun gear 12, and the front planet carrier and the rear planet carrier are made into a common front and rear planet carrier 10;

[0012] The first output end of the power input shaft 1 is respectively connected with the input ends of the first clutch 2, the second clutch 3 and the third clutch 4; the output end of the first clutch 2 is connected with the front ring gear 8, so The output end of the seco...

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Abstract

The invention discloses a two-stage type planet gear automatic transmission. The two-stage type planet gear automatic transmission comprises a front-row two-stage planet gear mechanism composed of a front-row gear ring (8), a front-row sun gear, a front-row planet carrier, a front-row first planet gear (11) and a front-row second planet gear (12), and a rear-row two-stage planet gear mechanism composed of a rear-row gear ring (15), a rear-row sun gear, a rear-row planet carrier, a rear-row first planet gear (13) and a rear-row second planet gear (14), wherein the front-row sun gear and the rear-row sun gear are made into a shared front-rear row sun gear (12); and the front-row planet carrier and the rear-row planet carrier are made into a shared front-rear row planet carrier (10). The two-stage type planet gear automatic transmission is simple and compact in structure, few in machining part type, low in cost, few in executing component, little in executing component transformation during gear shifting and not prone to movement interference.

Description

technical field [0001] The invention relates to a double-stage planetary gear automatic transmission. Background technique [0002] An automatic transmission mainly includes a planetary gear unit, clutches and brakes. The automatic transmission uses automatic transmission oil for energy conversion and power transmission, and uses oil pumps, oil circuits, clutches, planetary gear sets, multiple solenoid valves and other components to realize automatic transmission, bringing easy and simple driving experience to people's car driving . [0003] And existing double-clutch automatic transmission has two power input clutches, and wherein a clutch is responsible for the power input of odd-numbered gears, and another clutch is responsible for the power input of even-numbered gears, and it has the advantages of smooth shifting, good comfort, and fuel economy. At present, the existing dual-clutch automatic transmission generally adopts a parallel-shaft gear structure. The structure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/44
CPCF16H3/44F16H2003/445F16H2003/447F16H2200/0043F16H2200/2007F16H2200/2048
Inventor 龚文资胡文娟徐东
Owner 桐乡市中元建材科技有限公司
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