Differential shell convenient to install and fix

By opening mounting through holes and limiting through holes on the differential housing and combining the connecting shaft housing to protect the connecting shaft, the problem of cumbersome installation in the existing technology is solved, the convenient installation of the planetary gear and the stable fixation of the bearing are achieved, and the installation efficiency and service life are improved.

CN223331081UActive Publication Date: 2025-09-12YUNXI COUNTY JINGCHENG AUTOMOBILE FITTINGS CO LTD
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Patent Information

Application Number
CN202422892414.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-09-12
Estimated Expiration
2034-11-26

AI Technical Summary

Technical Problem

The existing four-wheel drive differential housing needs to be disassembled when installing the planetary gear, which makes the installation process complicated and time-consuming, and reduces the installation efficiency.

Method used

Installation through holes and bearing through holes are opened on the outer surface of the shell, and the bearings are fixed through the limiting through holes. The No. 1 and No. 2 connecting shaft shells are used to protect the connecting shaft to reduce friction. The mounting platform and docking screw holes are combined to achieve stable fixation.

Benefits of technology

It realizes direct installation of planetary gears, improves installation efficiency, enhances bearing stability and service life, and reduces friction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a differential shell convenient to install and fix, which comprises a shell body, two installation through holes are formed in the outer surface of the shell body in a penetrating mode, the two installation through holes are symmetrically arranged, two bearing through holes are formed in the outer surface of the shell body in a penetrating mode, and the two bearing through holes are symmetrically arranged. A limiting through hole is formed in the position, perpendicular to one bearing through hole, of the outer surface of the shell in a penetrating mode, and the limiting through hole communicates with the bearing through holes. The installation through hole is formed in the outer surface of the shell, a bevel gear can be conveniently and directly placed in the shell for installation, a bearing can be fixed and prevented from falling off due to the arrangement of the limiting through hole, a first connecting shaft shell and a second connecting shaft shell are used, a connecting shaft can be protected through the first connecting shaft shell and the second connecting shaft shell, and the service life of the bevel gear is prolonged. The friction force between the motor and the shell in the rotating process is reduced, and the service life is prolonged.
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Description

Technical Field

[0001] The utility model relates to the technical field of differential housings, in particular to a differential housing which is easy to install and fix. Background Art

[0002] The differential case, also known as the planetary gear carrier, serves as a support for the planetary gears, providing a stable operating environment for them and ensuring the operation of the entire differential system. It is usually assembled with other differential components such as the planetary gears and axle gears to form a complete differential device.

[0003] In the prior art, for example, Chinese patent CN219549530U discloses a differential housing that is easy to assemble, comprising a differential housing, wherein a first end cover and a second end cover are respectively provided at both ends of the differential housing, and a plurality of connecting mechanisms for fixing the first end cover and the second end cover are provided at the outer end of the differential housing. The connecting mechanisms include a long socket fixed to the outer end of the differential housing, and a short socket fixed to the outer end of the second end cover is provided at one end of the long socket.

[0004] At present, when installing the planetary gears in most four-wheel drive differential housings, the housing needs to be disassembled before installation, which makes the installation and fixation more complicated, takes more time, and reduces the installation efficiency. Utility Model Content

[0005] The purpose of the present utility model is to provide a differential housing that is easy to install and fix, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a differential housing that is easy to install and fix, comprising a housing, wherein the outer surface of the housing is provided with two mounting through holes, and the two mounting through holes are symmetrically arranged, the outer surface of the housing is provided with two bearing through holes, and the two bearing through holes are symmetrically arranged, and a limiting through hole is provided on the outer surface of the housing at a vertical position of one of the bearing through holes, and the limiting through hole is connected to the bearing through hole.

[0007] Preferably, a No. 1 connecting shaft housing and a No. 2 connecting shaft housing are respectively threadedly connected at both ends inside the shell, and one end of the No. 1 connecting shaft housing and the No. 2 connecting shaft housing are fixedly connected with a connecting boss.

[0008] Preferably, one end of each of the two connecting bosses is provided with a positioning groove, and the other end of the second connecting shaft housing is provided with a clamping groove.

[0009] Preferably, a mounting platform is fixedly connected to the outer surface of the shell, and a plurality of docking screw holes are opened through the outer surface of the mounting platform.

[0010] Preferably, a plurality of heat dissipation holes are formed through the inner surface of the shell. Beneficial effects

[0011] The utility model opens a mounting through hole on the outer surface of the shell, which makes it convenient to directly place the bevel gear inside for installation. The opening of the limit through hole can fix the bearing to prevent it from falling off. The use of the No. 1 connecting shaft shell and the No. 2 connecting shaft shell can protect the connecting shaft, reduce the friction between it and the shell during rotation, and improve its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a top view schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a bottom view schematic diagram of the overall structure of the utility model;

[0014] Figure 3 This is a first cross-sectional schematic diagram of the overall structure of the utility model;

[0015] Figure 4 This is a second cross-sectional schematic diagram of the overall structure of the utility model.

[0016] In the figure: 1. Housing; 2. Mounting through hole; 3. Bearing through hole; 4. Limiting through hole; 5. Heat dissipation through hole; 6. Mounting platform; 7. No. 1 connecting shaft housing; 8. No. 2 connecting shaft housing; 9. Slot; 10. Connecting boss; 11. Positioning slot; 12. Docking screw hole. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0018] The utility model provides a technical solution: Figure 1-4 As shown, in this embodiment, a differential housing that is easy to install and fix includes a housing 1, and two mounting through holes 2 are formed through the outer surface of the housing 1, and the two mounting through holes 2 are symmetrically arranged. Two bearing through holes 3 are formed through the outer surface of the housing 1, and the two bearing through holes 3 are symmetrically arranged. A limiting through hole 4 is formed through the outer surface of the housing 1 at a vertical position of one of the bearing through holes 3, and the limiting through hole 4 is connected to the bearing through hole 3. The mounting through hole 2 makes it convenient to place the mounting parts into the interior of the housing 1 for assembly, and the bearing through hole 3 is provided to facilitate positioning of the bearing, and the limiting through hole 4 can fix the bearing and improve stability.

[0019] like Figure 3 and Figure 4As shown, the interior of the shell 1 and the No. 1 connecting shaft housing 7 and the No. 2 connecting shaft housing 8 are respectively threadedly connected at both ends. One end of the No. 1 connecting shaft housing 7 and the No. 2 connecting shaft housing 8 are fixedly connected with a connecting boss 10. By providing the No. 1 connecting shaft housing 7 and the No. 2 connecting shaft housing 8, the connecting shaft and the inner wall of the shell 1 can be protected.

[0020] like Figure 3 and Figure 4 As shown, one end of the two connecting bosses 10 is provided with a positioning groove 11, and the other end of the second connecting shaft housing 8 is provided with a clamping groove 9, which facilitates positioning and improves stability.

[0021] like Figure 1 and Figure 2 As shown, the outer surface of the shell 1 is fixedly connected to a mounting platform 6, and a plurality of docking screw holes 12 are opened through the outer surface of the mounting platform 6 to facilitate installation and fixation.

[0022] like Figure 3 As shown, a plurality of heat dissipation holes 5 are formed through the inner surface of the housing 1 to facilitate heat dissipation and the entry and exit of lubricating oil.

[0023] The utility model provides a differential housing that is easy to install and fix. The specific working principle is as follows:

[0024] When installing the four-wheel drive differential housing, the bevel gear can be directly installed through the mounting hole 4 to the mounting position inside the housing 1, and then the bearing is inserted from the bearing through hole 3 and the transmission bevel gear is positioned, and then the fixing pin is inserted from the limiting through hole 4 and passes through the bearing to fix the bearing.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A differential housing that is easy to install and fix, comprising a housing (1), characterized in that: The outer surface of the shell (1) is provided with two mounting through holes (2), and the two mounting through holes (2) are symmetrically arranged. The outer surface of the shell (1) is provided with two bearing through holes (3), and the two bearing through holes (3) are symmetrically arranged. The outer surface of the shell (1) is provided with a limiting through hole (4) at a vertical position of one of the bearing through holes (3), and the limiting through hole (4) is communicated with the bearing through hole (3).

2. A differential case that is easy to install and fix according to claim 1, characterized in that: A first connecting shaft housing (7) and a second connecting shaft housing (8) are respectively threadedly connected at both ends of the housing (1), and one end of each of the first connecting shaft housing (7) and the second connecting shaft housing (8) is fixedly connected to a connecting boss (10).

3. A differential case that is easy to install and fix according to claim 2, characterized in that: One end of each of the two connecting bosses (10) is provided with a positioning groove (11), and the other end of the second connecting shaft housing (8) is provided with a clamping groove (9).

4. A differential case that is easy to install and fix according to claim 3, characterized in that: The outer surface of the shell (1) is fixedly connected to a mounting platform (6), and the outer surface of the mounting platform (6) is provided with a plurality of docking screw holes (12).

5. A differential case that is easy to install and fix according to claim 4, characterized in that: A plurality of heat dissipation through holes (5) are provided through the inner surface of the shell (1).

Citation Information

Patent Citations

  • Differential shell convenient to assemble

    CN219549530U