Differential mechanism shell and gear assembly

A technology for differentials and housings, which is applied to differential transmissions, belts/chains/gears, transmission parts, etc., which can solve the problem of limited torque transmission capacity of bolts, increased housing quality, and low precision of gear meshing, etc. question

Pending Publication Date: 2020-03-24
双环传动(重庆)精密科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The differential case and gears need to be drilled and tapped, and there are many processes, and a flange needs to be installed on the differential case, which increases the mass of the case;
[0004] 2. The torque transmission capacity of bolts is limited;
[0005] 3. If the control of the assembly process is not in place, the bolts are easy to loosen under the complex operating conditions of the vehicle;
[0006] 4. The differential case and gears are separately processed into finished products and then assembled. Due to part errors and assembly errors, the actual meshing accuracy of the gears is not high

Method used

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  • Differential mechanism shell and gear assembly
  • Differential mechanism shell and gear assembly
  • Differential mechanism shell and gear assembly

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Embodiment Construction

[0028] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

[0029] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

[0030] see Figure 1-5 , a differential case and gear assembly provided in the present application, comprising a case 1 , the outer periphery of the case 1 is sheathed with transmission teeth 2 , and the transmission teeth 2 are arranged coaxially with the case 1 . The outer periphery of the housing 1 is provided with an external spline 12, and the central hole wall of the transmiss...

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Abstract

The invention provides a differential mechanism shell and gear assembly, which comprises a shell, wherein the periphery of the shell is provided with a transmission gear in a sleeving mode, the periphery of the shell is provided with an external spline, the wall of a center hole of the transmission gear is provided with an internal spline, and the external spline and the internal spline form a spline connection structure for limiting circumferential rotation of the transmission gear relative to the shell; the periphery of the shell is further provided with a flange, the flange is arranged on one side of the external spline and connected with the side surface of the transmission gear in an abutting mode; the side, which is close to the flange, of the external spline is lower than the side,which is away from the flange, of the external spline, the distance L1 between the side surface of the side, which is away from the flange, of the external spline and the flange is greater than the hub width L2 of the transmission gear, and the external spline and the flange jointly act to limit axial movement of the transmission gear relative to the shell. According to the invention, through thearrangement of spline connection and cooperative use of the external spline and the flange, the existing bolt connection mode is replaced, the processing procedures are reduced, the cost and the assembly weight are reduced, and the actual meshing precision of the gear is improved through gear grinding after spline connection.

Description

technical field [0001] The invention relates to the technical field of motor vehicle differentials, in particular to a differential case and a gear assembly. Background technique [0002] The differential can make the left and right (or front and rear) driving wheels of the car rotate at different speeds, and is an essential part of the motor vehicle. The power of the engine enters the differential through the transmission shaft, specifically through the driving gear arranged on the transmission shaft and the driven gear on the differential case, and the torque is transmitted through the meshing of the gears. At present, the assembly method of the differential housing and the driven gear is mainly connected by bolts and / or riveted by rivets, and there are the following problems: [0003] 1. The differential case and gears need to be drilled and tapped, and there are many processes, and a flange needs to be installed on the differential case, which increases the mass of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H48/40F16H57/023
CPCF16H48/40F16H57/023
Inventor 罗箭范钰琢孟永财彭文忠
Owner 双环传动(重庆)精密科技有限责任公司
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