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Differential mechanism of transmission system of automobile

A transmission system and differential technology, applied in the direction of transmission, vehicle parts, differential transmission, etc., can solve the problems of input gear wear, large input gear size, etc., to prolong service life, reduce size, improve height Effect of variable load and shock load capacity

Inactive Publication Date: 2006-11-01
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the input end of this differential is the same as the traditional differential, and all the torque output in the gearbox is transmitted through an input gear, which makes the input gear larger in size
In addition, in some hybrid power transmission systems with multiple power sources, since the input gear needs to mesh with multiple gears at the output end of the hybrid power source at the same time, the wear of the input gear is serious

Method used

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  • Differential mechanism of transmission system of automobile
  • Differential mechanism of transmission system of automobile
  • Differential mechanism of transmission system of automobile

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Embodiment Construction

[0010] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0011] Such as figure 2 As shown, the differential in the vehicle drive train provided by the present invention includes a planetary assembly 7, the outer shell of the planetary assembly 7 has input gears, and there are multiple input gears, preferably 2-4.

[0012] Wherein, planetary assembly 7 can adopt traditional planetary assembly, also can adopt the planetary assembly disclosed in CN 2644210Y, for example, this planetary assembly can include planetary carrier, planetary wheel and output gear (not shown in the figure) .

[0013] Preferably, the outer shell of the planetary assembly 7 has two input gears 6 , 8 respectively arranged on opposite sides of the outer shell of the planetary assembly 7 . By connecting one input gear 6 to the vehicle engine and the other input gear 8 to the electric motor, a hybrid combined drive can b...

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Abstract

A differential mechanism in the vehicle transmission system comprises a planetary assembly, on the casing of which there are several input gears. The invention can reduce not only the size of the input gears, but also the wear of the input gears when transferring the torque of the several power producers.

Description

technical field [0001] The invention belongs to the technical field of vehicle drive train manufacturing, and in particular relates to a differential in a vehicle drive train. Background technique [0002] The function of the differential in the vehicle transmission system is to allow the left and right wheels to rotate at different speeds when the car is turning or driving on an uneven road surface, so that the wheels do pure rolling on the ground. figure 1 It is a simplified structural diagram of an automobile differential in the prior art. figure 1 Among them, the automotive differential is mainly composed of an input gear 1, a planetary carrier 2, two planetary gears 3 and two output gears 4. Wherein, the planetary gear carrier 2, the planetary gear 3, the output gear 4, etc. constitute a planetary assembly. The input gear 1 is connected to the outer casing of the planetary assembly, and its work content is: to transmit the entire torque output by the gearbox, and driv...

Claims

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Application Information

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IPC IPC(8): F16H48/06B60K17/16
Inventor 文明夏承钢谢晓东
Owner BYD CO LTD
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