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Multi-mode switching power transmission system with variable planetary gear characteristic parameters

A power transmission system and planetary gear technology, applied in the field of transmission system, can solve the problems of transmission system power interruption, torque limited by oil pressure and displacement, low flexibility, etc., to achieve automatic adaptation to changes in driving resistance, expansion speed Higher effect than range, operation efficiency

Active Publication Date: 2019-05-17
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Hydraulic transmission has the characteristics of wide speed ratio and high power density. It has been paid more and more attention in the research of vehicle stepless transmission, but it also has the disadvantages of low average efficiency, torque limited by oil pressure and displacement, and high-power hydraulic components. The cost and technical requirements are high, so it is difficult to use directly on the vehicle
Mechanical transmission has high transmission efficiency, but low flexibility, which will cause power interruption of the transmission system under complex working conditions such as starting, shifting and braking

Method used

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  • Multi-mode switching power transmission system with variable planetary gear characteristic parameters
  • Multi-mode switching power transmission system with variable planetary gear characteristic parameters
  • Multi-mode switching power transmission system with variable planetary gear characteristic parameters

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Example 1, such as figure 1 As shown, the multi-mode switching power transmission system with variable planetary gear characteristic parameters in the present invention includes a main clutch 1, an input shaft 2, a forward and reverse gear assembly 3, an intermediate shaft 7, a hydraulic transmission assembly 4, and a planetary gear Assembly 5, output shaft 6 and power output assembly 8; the main clutch 1 is used to connect the power source and the input shaft 2.

[0030] The forward and reverse gear assembly 3 includes a reverse gear speed-up driving gear 3-1, a reverse gear speed-up driven gear 3-2, a shift gear 3-3 with a spline sleeve, a reverse gear idler gear 3-4 and The reverse speed reduction driving gear 3-5; the reverse speed speed up driving gear 3-1 meshes with the reverse speed speed up driven gear 3-2, and the reverse speed speed up driving gear 3-1 is connected with the input shaft 2; The reverse gear idler gear 3-4 meshes with the reverse gear decelerat...

Embodiment 2

[0048] Example 2, such as image 3 As shown, the planetary gear sleeve 5-1 can be replaced by the fourth clutch 5-12 and the fifth clutch 5-13, and the fifth clutch 5-13 is used to selectively connect the rear planetary gear train The sun gear is connected with the input member; the fourth clutch 5-12 is used to selectively connect the sun gear of the front planetary gear train with the input member for common rotation. Only need to simultaneously switch the fourth clutch 5-12 and the fifth clutch 5-13 can achieve the purpose of switching the planetary gear sleeve 5-1 in Embodiment 1, and it is more precise.

Embodiment 3

[0049] Example 3, such as Figure 4 As shown, the planetary gear assembly 5 is a single planetary gear train, and the clutch assembly includes a sixth clutch 5-14, a seventh clutch 5-15, an eighth clutch 5-16 and a ninth clutch 5-17; The sixth clutch 5-14 is used to selectively connect the front planet carrier of the single planetary gear train with the intermediate shaft 7; the seventh clutch 5-15 is used to selectively connect the front planet carrier of the single planetary gear train The sun gear of the single planetary gear system is connected to the intermediate shaft 7; the eighth clutch 5-16 is used to selectively connect the sun gear of the single planetary gear system to the output shaft 6; the ninth clutch 5-17 is used to selectively Connect the rear planet carrier of the single planetary gear train with the output shaft 6; engage the first clutch 5-3, the sixth clutch 5-14 and the eighth clutch 5-16 to provide the input shaft 2 and the output shaft 6 Between hydra...

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Abstract

The invention provides a multi-mode switching power transmission system with variable planetary gear characteristic parameters. The multi-mode switching power transmission system comprises an input component, an output component, a clutch assembly, a hydraulic transmission assembly and a planetary gear assembly, the input component is connected with the hydraulic transmission assembly, the outputcomponent is connected with the input component, the planetary gear assembly and the hydraulic transmission assembly, the input component and the hydraulic transmission assembly are connected to the planetary gear assembly by the clutch assembly, and the clutch assembly provides the transmission ratio for continuous advancing or retreating between the input component and the output component. By adjusting the displacement ratio of the hydraulic transmission assembly and selectively controlling jointing of the clutch assembly, the transmission mode for advancing or retreating between the inputcomponent and the output component is provided. The multi-mode switching power transmission system combines hydraulic transmission and mechanical transmission, hydraulic mechanical stepless transmission is generated, stepless speed-regulating is achieved through hydraulic transmission, and efficient transmission is achieved through mechanical transmission.

Description

technical field [0001] The invention relates to the field of transmission system, the field of automobile transmission or the field of engine transmission, in particular to a multi-mode switching power transmission system with variable characteristic parameters of planetary gears. Background technique [0002] The compound transmission method with continuously variable transmission function has always been a research hotspot in the field of transmission. The stepless transmission can adjust the transmission ratio according to the working state of the engine and the road surface conditions, so that the engine always works on the best power and fuel economy curve, realizes the matching of the engine, the transmission system and the load, and finally realizes the human-machine-environment integration. [0003] Hydraulic transmission has the characteristics of wide speed ratio and high power density. It has been paid more and more attention in the research of vehicle stepless t...

Claims

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Application Information

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IPC IPC(8): F16H57/023F16H47/04
Inventor 朱镇陈龙夏长高蔡英凤施德华韩江义王峰盘朝奉袁朝春徐兴
Owner JIANGSU UNIV
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