Drive axle double-speed reducer with planetary structure

A technology of planetary structure and drive axle, which is applied in the direction of transmission box, transmission device, transmission device parts, etc., can solve the problems of low driving speed, insufficient driving torque, low efficiency, etc., and achieve the effect of improving efficiency and reducing fuel consumption

Pending Publication Date: 2019-04-12
FAW JIEFANG AUTOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of insufficient driving torque when the commercial vehicle is fully loaded due to the single speed ratio in the existing drive axle; low driving speed, high fuel consumption, and low efficiency when the commercial vehicle is unloaded.

Method used

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  • Drive axle double-speed reducer with planetary structure
  • Drive axle double-speed reducer with planetary structure
  • Drive axle double-speed reducer with planetary structure

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Embodiment 1

[0031] A drive axle two-speed reducer with a planetary structure, including a reducer housing 8, a fixed meshing sleeve 9, a driven bevel gear 12, a sliding meshing sleeve 13, a planetary gear assembly 15, a bevel gear housing 17 and a driving bevel gear assembly 29;

[0032] Wherein, the planetary gear assembly 15 includes the driving cylindrical gear 1, the planetary gear front case 2, the planetary gear rear case 3, the bolt 4, the planetary gear 5, the planetary gear gasket 6 and the cross shaft 7; the planetary gear gasket Plate 6 is put into the shaft diameter of planetary gear 5, and the hole of planetary gear 5 is assembled into the shaft diameter of cross shaft 7. Four semicircular holes are respectively arranged on the planetary gear front case 2 and the planetary gear rear case 3, forming four circles. The hole is used to load the cross shaft 7; the inner stop of the driving cylindrical gear 1 is installed on the outer stop of the planetary gear rear case 3;

[003...

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Abstract

The invention discloses a drive axle double-speed reducer with a planetary structure, and belongs to the technical field of automobile drive axles. The reducer comprises a reducer shell, a fixed meshing sleeve, a driven bevel gear, a sliding meshing sleeve, a planetary gear assembly, a bevel gear shell, a driving bevel gear assembly, a driven cylindrical gear and a driving bevel gear. The reduceradopts a double-speed reducer structure, when a commercial automobile is fully loaded, a large speed ratio is adopted to increase driving torque; when the commercial automobile is in zero-load, a small speed ratio is adopted to increase driving speed; and through the reasonable arrangement of the speed and the torque, the oil consumption is reduced, and the efficiency is improved. A planetary gearset structure is adopted, based on the double-speed reduction principle of a planetary bevel gear structure, the switching between one time reduction ratio and two times reduction ratio can be achieved; the shaft diameter of the driving bevel gear is used for radially positioning a cross shaft and the driven bevel gear; the sliding meshing sleeve adopts double-face end face teeth and is used forswitching between the two speed ratios; and through a driving cylindrical gear and an end face tooth structure, the two functions of transmission and speed change are realized.

Description

technical field [0001] The invention belongs to the technical field of automobile driving axles, and in particular relates to a double-speed reducer for driving axles with a planetary structure. Background technique [0002] Domestic commercial vehicle drive axles mostly have a single speed ratio structure, which often has the following disadvantages: when the full-load torque meets the requirements, the no-load speed is insufficient; or when the no-load speed meets the requirements, the full-load torque is insufficient. In order to meet the torque requirements at full load and the speed requirements at no-load at the same time, thereby achieving the purpose of improving efficiency and reducing energy consumption, it is urgent to develop a drive axle with two speed ratios, that is, use a large speed ratio at full load and use a high speed ratio at no-load. Switch to use a small ratio. Contents of the invention [0003] The purpose of the present invention is to solve the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/28F16H57/02F16H57/023F16H57/021
CPCF16H1/2854F16H57/02F16H57/021F16H57/023
Inventor 冯涛吴乃云刘亮胡晓姚临喆刘春伟
Owner FAW JIEFANG AUTOMOTIVE CO
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