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Differential device and method of assembling the same

A differential gear and assembly process technology, applied in the differential transmission, transmission, belt/chain/gear, etc., can solve the problem of not being able to ensure high bonding force, and achieve the effect of cost reduction and process simplification

Inactive Publication Date: 2018-05-01
MUSA PRECISION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] On the other hand, in the differential device of Patent Document 2, since the side gear and the sleeve are bonded with an adhesive, the above-mentioned problems of Patent Document 1 can be solved to some extent, but on the other hand, there is a problem that a high bond cannot be ensured. opposite problem

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  • Differential device and method of assembling the same
  • Differential device and method of assembling the same
  • Differential device and method of assembling the same

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Embodiment Construction

[0052] Embodiments of the present invention will be described below based on the drawings.

[0053] First, after showing the first embodiment figure 1 , figure 2 Among them, the differential device 1 is accommodated together with a transmission device not shown in the transmission case 8 of the automobile. This differential device 1 includes: a differential case 10 formed of one seamless member; and a differential gear mechanism 6 assembled in the differential case 10 . On one side wall of the differential case 10 ( figure 1 A cylindrical first boss portion 10b1 is integrally formed on the left side wall in the center, and on the other side wall ( figure 1 The center is the right side wall) and the cylindrical 2nd boss part 10b2 is integrally formed. The first and second boss portions 10b1 and 10b2 are arranged at intervals from each other on the first axis X1, which is the rotation axis of the differential case 10. On the first and second boss portions 10b1 and 10b2, the...

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Abstract

The invention provides a differential device and a method for assembling the same. In the differential device, a sleeve that penetrates a differential case is coupled to a side gear, and a gasket is interposed between the opposing surfaces of the back surface of the side gear and the inner surface of the differential case, so that the side gear and the sleeve can be easily coupled with high coupling force, and the gasket can be accurately supported. At least one side gear (32) has a shaft portion (32a) extending axially outward from a rear surface (32gb), and an inner peripheral surface of thesleeve (42) is press-fitted (P2) to the shaft portion (32a). On one side gear (32), a gasket support portion (62) is provided at the root portion of the shaft portion (32a), and the inner peripheralportion (52i) of the gasket (52) is fitted to the outer peripheral surface (62a) of the gasket support portion (62). Moreover, the end surface (42e) on the front side in the press-fitting direction ofthe sleeve (42) abuts against the axial end surface (62b) of the gasket support portion (62) or sandwiches the a gap less than the thickness of the gasket (52) in an opposite manner.

Description

technical field [0001] The present invention relates to a differential device and an assembly method thereof. The differential device includes a differential case, a pinion gear housed in the differential case and engaged with each other, and a pair of side gears. A gasket is interposed between opposing surfaces of both inner surfaces of the differential case. Background technique [0002] Regarding the above-mentioned differential device, for example, in Patent Documents 1 and 2, it is disclosed that the shaft portion on the back side of the side gear is extended to the outside of the differential case, and the oil-tight seal between the extended shaft portion and the transmission case is disclosed. This seals the transmission oil inside the transmission housing. In addition, in the differential devices of Patent Documents 1 and 2, in order to avoid elongation of the side gears, a cylindrical sleeve (cylindrical member) is manufactured separately from the side gears, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H48/12F16H48/38
CPCF16H48/40F16H48/08F16H2048/382F16H2048/387F16H48/12F16H48/38
Inventor 柳濑阳一
Owner MUSA PRECISION IND CO LTD
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