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A multi-speed transmission transmission mechanism

A transmission mechanism and transmission technology, which is applied to transmissions, gear transmissions, mechanical equipment, etc., can solve problems such as unsatisfactory power and economy of automobiles, unfavorable structural layout design of automobiles, and large changes in engine speed. Achieve the effect of flexible structural layout design, economical ideal, and improved shifting smoothness

Inactive Publication Date: 2015-12-23
SHUNDE POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the parallel shaft dual clutch transmission must use a separate reverse shaft and reverse gear
When one output shaft is used, the axial size of the transmission is large; when two output shafts are used, the radial size of the transmission is large and takes up a lot of space, which is not conducive to the structural layout design of the car
At present, the forward gear of the dual-clutch transmission adopts 7 gears at most, and the most widely used is the 6th gear, and the speed ratio changes greatly. In this way, the engine speed changes greatly when changing gears, which makes the power and economy of the car not very ideal. poor ride quality

Method used

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  • A multi-speed transmission transmission mechanism
  • A multi-speed transmission transmission mechanism
  • A multi-speed transmission transmission mechanism

Examples

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Comparison scheme
Effect test

no. 1 example （ 7

[0018] see figure 1 , the dual clutch of the present invention comprises a dual clutch assembly 1 (comprising a first clutch 2 and a second clutch 3, respectively corresponding to the first input shaft 4 and the second input shaft 5 of the two clutches, the first double-row planetary gear train 181, the second Two double-row planetary gear trains 182, output shaft 8 and multiple synchronizers. The first double-row planetary gear train and the second double-row planetary gear train are arranged in a vertical structure, and the first double-row planetary gear train adopts new double planetary gears Transmission mechanism, the second double-row planetary gear train adopts CR-CR gear transmission mechanism, the first double-row planetary gear train includes the first planetary row X1 and the second planetary row X2, and the second double-row planetary gear train includes the third planetary gear row X3 and the fourth planet row X4.

[0019] The front sun gear 105 and the rear pla...

no. 2 example （ 6

[0046] see figure 2 , on the basis of the first embodiment, the positions of the first double-row planetary gear train and the second double-row planetary gear train are interchanged, the second constant mesh synchronizer 135 is canceled, and the dual-clutch assembly 1 is set in the first double-row planetary gear train On the right side of the planetary gear train 181 , the output shaft 8 is arranged on the first double-row planetary gear train 181 on the same axis as the dual clutch assembly 1 but on a different side. According to the transmission ratio setting of gears, the transmission ratios of the first gear 161 and the second gear 162 , the third gear 163 and the fourth gear 164 , and the value a of each planetary row need to be appropriately changed. The first double-row planetary gear train 181 realizes 1.3.5 and reverse gears like this, and the second double-row planetary gear train 182 realizes 2.4.6 gears.

[0047] It can be known from the above embodiments that ...

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Abstract

The invention discloses a transmission mechanism of a multi-speed transmission, which includes a first clutch and a corresponding first input shaft, a second clutch and a corresponding second input shaft, a plurality of synchronizers, and first and second double-row planetary wheels One of them is composed of two rows of planetary rows at the front and rear. In the front planetary row, the front sun gear and the rear planet carrier are integrated and fixed with the housing through the first constant mesh synchronizer or clutch; the rear planetary row adopts double planetary gears The structure, the front ring gear and the rear ring gear are integrated, the power can be transmitted to the rear sun gear or the rear ring gear through the second synchronizer or the third synchronizer or the clutch through the first rear outer shaft, and output by the front planetary carrier. The present invention adopts the combination of the CR-CR type gear transmission mechanism and the new double planetary gear transmission mechanism, and cooperates with two clutches and multiple synchronizers to realize the shifting performance of the dual-clutch transmission and reduce the size of the transmission. At the same time, the smoothness of shifting is improved.

Description

technical field [0001] The invention relates to the technical field of automobile transmissions, in particular to a multi-speed transmission transmission mechanism. Background technique [0002] According to the different types of wheel trains used, there are two types of axle-connected transmissions (parallel shaft transmissions) and axial rotary transmissions (planetary gear transmissions). According to the number of clutches, it can be divided into single-clutch transmission and dual-clutch transmission. The power transmission mechanism of the current dual-clutch transmission is a parallel shaft transmission. The power transmission is divided into two routes, one is the odd-numbered gear transmission route, and the other is the even-numbered gear transmission route. The two power transmission routes pass through the first and second clutches respectively. Connect the first and second input shafts, and then output the power through the transmission gears on the driven sha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/62
Inventor 赵良红范爱民吴峰罗子聪陈增强
Owner SHUNDE POLYTECHNIC
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