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Double-clutch transmission

A dual-clutch transmission and clutch technology, which is applied to vehicle gearboxes, gear transmissions, transmission components, etc., can solve the problems of unfavorable transmission space layout compactness, complex reverse gear transmission path, and large number of gear meshes, etc., to achieve transmission The effects of reasonable ratio distribution, shortened axial length and variable transmission ratio range

Pending Publication Date: 2018-08-14
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: aiming at the defects that the existing dual-clutch transmission needs to be provided with an additional reverse gear shaft, the transmission path of the reverse gear is complicated, and the number of gears meshes is large, which is not conducive to the compactness of the space layout of the transmission. The reverse gear power flow structure of the dual-clutch transmission can be applied to the drive device of the external input shaft, which can only realize one direction of rotation, and the cost is lower and the design is more compact

Method used

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no. 2 example

[0068] image 3 It is a structural schematic diagram of the dual-clutch transmission of the second embodiment of the present invention, please refer to image 3 The difference between the speed changer of this embodiment and the speed changer of the first embodiment is that the third gear and the fifth gear are interchanged. Therefore, the first gear driving gear 13 and the fifth gear driving gear are fixed on the inner input shaft 1 from one end close to the power source. 33 and the third and seventh gears driving gear 34, four and six gears driving gear 28 and the second gear driving gear 14 are fixed on the outer input shaft 2 from one end near the power source, and there are empty sleeves on the first output shaft 27 from one end near the power source The fourth gear driven gear 20, the second gear driven gear 18, the first gear driven gear 17 and the third gear driven gear 8, the second output shaft 3 has a sixth gear driven gear 5, which is empty from one end close to th...

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Abstract

The invention discloses a double-clutch transmission. The double-clutch transmission comprises an inner input shaft, an outer input shaft and two output shafts, wherein the inner input shaft and the outer input shaft are coaxially embedded. The transmission is provided with seven forward gears and one reverse gear, odd gear driving gears are arranged on the inner input shaft, even gear driving gears are arranged on the outer input shaft, the second gear and the reverse gear share a driven gear, the fourth and sixth gears and the fifth and seventh gears (or the third and seventh gears) share the driving gears. A plurality of driven gears are arranged on a first output shaft, a reverse gear assembly and the driven gears are arranged on a second output shaft, and the reverse gear assembly andthe adjacent driven gears are designed to a double-gear structure which can be switched. Because different clutches are used in the first gear and the reverse gear separately, the first gear and thereverse gear can be pre-hung at the same time when a neutral gear starts; the double-gear structure is formed by joining of the reverse gear assembly with the adjacent driven gears, thus the transmission of reverse power is realized, and a reverse shaft is cancelled; and the axial length of the transmission can be reduced by sharing the driving gears or the driven gears.

Description

technical field [0001] The invention belongs to the technical field of vehicle transmissions, in particular to a dual-clutch transmission. Background technique [0002] Among the automatic transmissions currently in use, AT (Automatic Transmission, hydraulic automatic transmission) is difficult to be more comprehensively applied because of its complex structure, high manufacturing cost, difficulty in manufacturing, high fuel consumption, and low efficiency; AMT (Automated Mechanical Transmission, Electromechanical automatic transmission) has low manufacturing cost, but it is difficult to be popularized due to the disadvantages of shift power interruption, shift noise and shift shock that affect comfort; CVT (Continuously Variable Transmission, mechanical continuously variable automatic transmission) can Realize continuously variable speed, but it is also difficult to be widely used due to low efficiency and high cost. [0003] The dual-clutch transmission integrates two gea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/20F16H57/023
CPCF16H3/20F16H57/023F16H2200/0056
Inventor 凌晓明刘学武张倍坚余子林吴坚邵发科王开国段燕军黄新志
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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