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Transmission with parallel planetary gear train

A technology for planetary gear trains and transmissions, applied to gear transmissions, belts/chains/gears, mechanical equipment, etc., can solve the problems of difficult parts processing, small transmission torque, low transmission efficiency, etc., and achieve a simple overall structure and Compactness, avoiding power interruption, and reducing the number of effects

Inactive Publication Date: 2015-11-04
HEFEI UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The manual transmission is manually shifted through a clutch and multiple pairs of gear pairs installed on a fixed shaft system, and cannot realize the automatic transmission function; the mechanical automatic transmission is based on the manual transmission, and an automatic control device is added to control the clutch and select The gear pair on the fixed shaft system performs automatic shifting, and there is power interruption during the shifting process, and the shifting smoothness is not good; the electro-hydraulic control automatic transmission has a set of planetary gear trains in series and multiple clutches and adapters, which can Automatic shifting is carried out through electronically controlled hydraulic drive, but the structure and control system are complex, the transmission efficiency is low, the processing of parts is difficult, and the manufacturing and maintenance costs are high; the dual-clutch transmission is based on the mechanical automatic transmission. The original parallel clutch and the output shaft connected to it can allow two gear pairs with different gears to mesh at the same time to realize the gear preset. The transmission route of the transmission is determined by selecting the working status of different clutches, and the automatic shift control is installed. The device can realize automatic shifting, but the clutch must be combined and separated under the overall rotation state, the oil circuit is complicated, the failure rate is high, and the maintenance is difficult; the continuously variable transmission changes the V-shaped transmission belt between the driving conical disc and the driven conical disc. The transmission radius on the disc realizes continuous stepless speed regulation, but the transmission torque is small, the processing and manufacturing of parts is difficult, the parts wear more during use, and the service life is shorter

Method used

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  • Transmission with parallel planetary gear train
  • Transmission with parallel planetary gear train
  • Transmission with parallel planetary gear train

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] see figure 1 A transmission with a parallel planetary gear train includes an input shaft ZR1, a first output shaft Z1, a second output shaft Z2, a reverse gear shaft ZD1, a first planetary gear train X1, a second planetary gear train X2, a first clutch J1, The second coupling J2, the first coupling L1 and the second coupling L2, the differential driven gear CZ;

[0049] The end of one side of the first output shaft Z1 is fixed with the I-III gear driven gear C1, and the other side is fixed with the first planetary gear system sun gear XT1; the end of the second output shaft Z2 is fixed The driven gear C2 for Ⅱ-Ⅳ gears is fixed, the sun gear XT2 of the second planetary gear system is fixed on the other side, the first reverse shaft gear CD2 and the second reverse shaft gear are fixed on the reverse shaft ZD1 CD3;

[0050] The input shaft ZR1 is provided with a first forward gear CR1 and a reverse gear CD1 at the same time, and the input shaft ZR1 between the first forw...

Embodiment 2

[0068] see Figure 7 A transmission with a parallel planetary gear train includes an input shaft ZR1, a first output shaft Z1, a second output shaft Z2, a reverse gear shaft ZD1, a first planetary gear train X1, a second planetary gear train X2, a first clutch J1, The second coupling J2, the first coupling L1 and the second coupling L2, the differential driven gear CZ;

[0069] One side of the first output shaft Z1 is provided with I-III gear driven gear C1 and V-VII gear driven gear C3, and I-III gear driven gear C1 and V-VII gear driven gear C3 A first output shaft synchronizer T2 is provided on the first output shaft Z1 between them, and a first planetary gear system sun gear XT1 is fixed on the other side of the first output shaft Z1;

[0070] One side of the second output shaft Z2 is provided with II-IV gear driven gear C2 and VI-VIII gear driven gear C4, and II-IV gear driven gear C2 and VI-VIII gear driven gear C4 A second output shaft synchronizer T3 is provided on t...

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Abstract

The invention relates to a transmission with a parallel planetary gear train. Including input shaft, first output shaft, second output shaft, reverse gear shaft, first planetary gear train, second planetary gear train, first clutch, second clutch, first coupling, second coupling and Differential driven gear; the present invention adopts common tooth transmission, the first forward gear which is idle on the input shaft is simultaneously connected with the idle I-III gear driven gear on the first output shaft and the II gear which is idle on the second output shaft. -The Ⅳ gear driven gear is in constant mesh, the second forward gear fixed on the input shaft is simultaneously connected with the Ⅴ-Ⅶ gear driven gear on the first output shaft and the Ⅵ-Ⅷ gear driven gear on the second output shaft. The gears are constantly meshed, which can effectively reduce the number of shifting gear pairs and simplify the structure of the transmission system; in the same planetary gear train, two different transmission ratios, planetary differential transmission and direct transmission, can be formed by using an adapter or coupling. The overall structure of the transmission is more concise and compact.

Description

technical field [0001] The invention belongs to a transmission for a vehicle, in particular to a parallel planetary gear train transmission using the two-speed transmission characteristic of a planetary mechanism. Background technique [0002] At present, vehicle transmissions are divided into manual transmission (MT), automatic mechanical transmission (AMT), electrohydraulic automatic transmission (AT), dual clutch transmission (DSG) and continuously variable transmission (CVT). The manual transmission is manually shifted through a clutch and multiple pairs of gear pairs installed on a fixed shaft system, and cannot realize the automatic transmission function; the mechanical automatic transmission is based on the manual transmission, and an automatic control device is added to control the clutch and select The gear pair on the fixed shaft system performs automatic shifting, and there is power interruption during the shifting process, and the shifting smoothness is not good;...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/58F16H3/76
CPCF16H3/66
Inventor 汪韶杰孙保群李余格夏鹏飞胡健朱文峰王阳洋盛楠
Owner HEFEI UNIV OF TECH