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Longitudinal coaxial gear-shiftable electrically driven bridge reduction gearbox assembly

An electric drive, coaxial technology, applied in the transmission box, axle, transmission device, etc., can solve the problems of low efficiency and high cost of the power transmission system, and achieve the effect of reducing system cost, low cost and high technology maturity

Pending Publication Date: 2019-02-22
DONGFENG COMML VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a longitudinal coaxial shiftable electric drive axle gearbox assembly for the problems of low efficiency or high cost of the existing power transmission system

Method used

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  • Longitudinal coaxial gear-shiftable electrically driven bridge reduction gearbox assembly
  • Longitudinal coaxial gear-shiftable electrically driven bridge reduction gearbox assembly
  • Longitudinal coaxial gear-shiftable electrically driven bridge reduction gearbox assembly

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Embodiment Construction

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] see Figure 1 to Figure 3 , a vertical coaxial shiftable electric drive axle gearbox assembly, including a motor, a shaft assembly 1, an intermediate shaft assembly 2, a main cone shaft assembly 3 and a differential assembly 4. The countershaft assembly 2 includes a countershaft 15, a countershaft constant mesh gear 12 and a countershaft low speed gear 13; On the shaft 15, namely the inner hole of the countershaft constant meshing gear 12 and the inner hole of the countershaft low speed gear 13 are interference fit with the countershaft 15. The main bevel shaft assembly 3 includes a driving bevel gear 10, a main bevel shaft low gear 14 and a fixed tooth seat 9, and the main bevel low gear 14 is connected with the driving bevel gear 10 through a needle bearing, so The above-mentioned fixed gear seat 9 is fixed on the driving b...

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Abstract

A longitudinal coaxial gear-shiftable electrically driven bridge reduction gearbox assembly comprises a motor, a first shaft assembly (1), an intermediate shaft assembly (2), a main conical shaft assembly (3) and a differential mechanism assembly (4), wherein the intermediate shaft assembly (2) comprises an intermediate shaft (15), an intermediate shaft normally engaged gear (12) and an intermediate shaft low-speed gear (13); the main conical shaft assembly (3) comprises a driving bevel gear (10), a main conical shaft low-speed gear (14) and a fixing gear holder (9); the motor is connected with the first shaft assembly (1); the first shaft assembly (1) is engaged with the intermediate shaft normally engaged gear (12); the intermediate shaft low-speed gear (13) is engaged with the main conical shaft low-speed gear (14); the main conical shaft assembly (3) is connected with the first shaft assembly (1) through a sliding engaging sleeve (8); and the driving bevel gear (10) is engaged witha driven bevel gear (11) of the differential mechanism assembly (4). Small gears of AMT are realized, and the system cost is reduced while dynamic performance is considered.

Description

technical field [0001] The invention relates to an electric drive axle reduction box assembly, more specifically to a longitudinal coaxial shiftable electric drive axle reducer assembly, which belongs to the technical field of pure electric commercial vehicles. Background technique [0002] At present, the technical route of pure electrified powertrain for commercial vehicles mainly includes: 1) motor + AMT + transmission shaft + traditional rear axle; and coaxial type), representative companies include BYD, Dana, etc. [0003] However, the technical solution of "motor + AMT + transmission shaft + traditional rear axle" has the following disadvantages: 1) The transmission shaft is required to connect the AMT and the drive axle, and its weight is heavy; 2) The non-uniform velocity of the transmission shaft and the existence of the transmission angle , making the entire power transmission system less efficient and more vibrated. In the technical solution of "central integrat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/20F16H48/12F16H57/02F16H57/023F16H57/037B60B35/12
CPCF16H1/203F16H48/12F16H57/02F16H57/023F16H57/037B60B35/12
Inventor 郭建坤李瑾宁刘金杜春鹏闵运东刘华军
Owner DONGFENG COMML VEHICLE CO LTD
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