Differential shell with high structural strength

Abstract

The utility model discloses a differential mechanism shell with high structural strength, which relates to the technical field of differential mechanisms and comprises a first differential mechanism shell and a second differential mechanism shell, a first connecting plate is mounted at the bottom of the first differential mechanism shell, and a second connecting plate is mounted at the bottom of the second differential mechanism shell. A first connecting plate is installed on the top of the first differential shell, a second connecting plate is installed on the top of the second differential shell, the first connecting plate and the second connecting plate are connected through a connecting flange, and a differential cavity is formed in the middle of the first differential shell. The top of the first differential shell and the bottom of the second differential shell are provided with half shaft holes communicated with the differential cavity, and the problems that most of existing differential shells are of a single-layer structure, the structural strength is poor, load distribution is uneven, stress of the shells is concentrated, consequently, the shell rigidity is not enough, and the service life of the shells is prolonged are solved. And after the differential mechanism is used for a long time, the differential mechanism shell is easy to deform and even burst.

Description

Technical Field

[0001] The utility model relates to the technical field of differentials, in particular to a differential housing with high structural strength. Background Technique

[0002] A differential is an indispensable component in an automobile transmission mechanism, which can enable the left and right wheels of an automobile to have appropriate rotation speeds at different turning radii during steering, thereby ensuring the stability of the vehicle body during turning. The differential needs to be attached to the housing to work properly. A structurally stable differential housing is the guarantee for the efficient operation of the differential.

[0003] For example, the device with the publication number CN215110369U named Differential Housing and Differential includes a cylindrical planetary gear shaft. An axially extending oil passage is provided on the end face of the first end of the cylindrical planetary gear shaft. An oil inlet extending parallel to the central axis of the oil passage is provided on the differential housing, and the oil inlet is partially offset and communicated with the oil passage. The lubricating oil is collected through the oil inlet provided on the differential housing, avoiding the oil leakage problem caused by the installation gap between the oil baffle and the differential housing.

[0004] The above device has a single-layer structure, with insufficient structural strength, uneven load distribution, and relatively concentrated stress on the housing, resulting in insufficient stiffness of the housing. After long-term use, the differential housing is prone to deformation or even bursting. Therefore, we propose a differential housing with high structural strength to solve the problems raised above. Content of the Utility Model

[0005] The purpose of the utility model is to provide a differential housing with high structural strength to solve the problems in the above background technique, that is, most of the existing differential housings are of single-layer structure, with insufficient structural strength, uneven load distribution, relatively concentrated stress on the housing, resulting in insufficient stiffness of the housing, and the differential housing is prone to deformation or even bursting after long-term use.

[0006] To achieve the above object, the present utility model provides the following technical solution: A differential housing with high structural strength, comprising a first differential housing and a second differential housing. A first connecting plate is installed at the bottom of the first differential housing, and a second connecting plate is installed at the top of the second differential housing. The first connecting plate and the second connecting plate are connected by a connecting flange. A differential cavity is provided in the middle of the first differential housing. Half shaft holes communicating with the differential cavity are provided at the top of the first differential housing and the bottom of the second differential housing. Planetary gear shaft holes are provided at both ends of the first differential housing, and the planetary gear shaft holes horizontally penetrate the differential cavity. A plurality of mounting holes are provided inside the connecting flange, and the mounting holes penetrate the first connecting plate, the second connecting plate, and the connecting flange. A plurality of groups of insurance structures are installed between the first connecting plate and the connecting flange and between the second connecting plate and the connecting flange. The insurance structure includes an upper groove respectively penetrating the first connecting plate and the second connecting plate, and a lower groove located inside the connecting flange. An upper card slot is installed on one outer wall of the upper groove, and a lower card slot is installed on the lower part of the other outer wall of the upper groove. The upper groove, the lower groove, the upper card slot, and the lower card slot communicate with each other. A return spring is installed inside the lower groove, a limiting plate is installed at the other end of the return spring, and a limiting rod is provided inside the upper groove.

[0007] Preferably, a reinforcing plate is installed on the inner wall of the first differential housing.

[0008] Preferably, a plurality of reinforcing ribs are installed between the first differential housing and the first connecting plate, and a plurality of reinforcing ribs are installed between the second differential housing and the second connecting plate.

[0009] Preferably, the reinforcing ribs are evenly distributed along the circumferential direction of the connecting flange.

[0010] Preferably, the insurance structures located inside the first connecting plate and the second connecting plate are staggered from each other, and the insurance structures are evenly distributed inside the first connecting plate and the second connecting plate.

[0011] Preferably, the mounting holes are evenly distributed inside the connecting flange.

[0012] Preferably, a convex block is installed at the lower part of the limiting rod.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] The utility model can effectively enhance the structural strength of the housing through the reinforcing plate, improve the ability to resist impact loads, and is not easily damaged. The first connecting plate, the second connecting plate, and the connecting flange are fixedly connected through bolts and nuts through the mounting holes, facilitating the installation and disassembly of the first connecting plate, the second connecting plate, and the connecting flange, and also enabling uniform load distribution. Through the combined action of the return spring, the limiting plate, the limiting rod, and the convex block, the fixation and disassembly of the first connecting plate and the second connecting plate with the connecting flange can be achieved, preventing the housing from directly opening and causing parts to fall when the bolts are just removed by the staff during equipment disassembly, solving the problems that most existing differential housings are single-layer structures, lacking in structural strength, having uneven load distribution, relatively concentrated stress in the housing, resulting in insufficient stiffness of the housing, and being prone to deformation or even bursting of the differential housing after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 is a schematic front-sectional structure diagram of the utility model Figure 1 ;

[0017] Figure 3 is a schematic front-sectional structure diagram of the utility model Figure 2 ;

[0018] Figure 4 is a schematic top view structure diagram of the utility model;

[0019] Figure 5 is a schematic top-sectional structure diagram of the utility model;

[0020] In the figure: 1. First differential housing; 2. Second differential housing; 3. First connecting plate; 4. Second connecting plate; 5. Connecting flange; 6. Differential cavity; 7. Half shaft hole; 8. Planet gear shaft hole; 9. Mounting hole; 10. Reinforcing plate; 11. Reinforcing rib; 12. Insurance structure; 13. Upper groove; 14. Lower groove; 15. Upper card slot; 16. Lower card slot; 17. Return spring; 18. Limiting plate; 19. Limiting rod; 20. Convex block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0022] Please refer to Figures 1-5, an embodiment provided by the present utility model: a differential housing with high structural strength, including a first differential housing 1 and a second differential housing 2. A first connecting plate 3 is installed at the bottom of the first differential housing 1, and a second connecting plate 4 is installed at the top of the second differential housing 2. The first connecting plate 3 and the second connecting plate 4 are connected by a connecting flange 5. A differential cavity 6 is provided in the middle of the first differential housing 1. Half-axle holes 7 communicating with the differential cavity 6 are provided at the top of the first differential housing 1 and the bottom of the second differential housing 2. Planet gear shaft holes 8 are provided at both ends of the first differential housing 1, and the planet gear shaft holes 8 penetrate the differential cavity 6 horizontally. A number of mounting holes 9 are provided inside the connecting flange 5, and the mounting holes 9 penetrate the first connecting plate 3, the second connecting plate 4, and the connecting flange 5. A number of groups of insurance structures 12 are installed between the first connecting plate 3 and the connecting flange 5 and between the second connecting plate 4 and the connecting flange 5. The insurance structure 12 includes an upper groove 13 respectively penetrating the first connecting plate 3 and the second connecting plate 4, and a lower groove 14 located inside the connecting flange 5. An upper card slot 15 is installed on one outer wall of the upper groove 13, and a lower card slot 16 is installed at the lower part of the other outer wall of the upper groove 13. The upper groove 13, the lower groove 14, the upper card slot 15, and the lower card slot 16 communicate with each other. A return spring 17 is installed inside the lower groove 14, and the other end of the return spring 17 is installed with a limiting plate 18. A limiting rod 19 is provided inside the upper groove 13.

[0023] Please refer to Figure 2 , a reinforcing plate 10 is installed on the inner wall of the first differential housing 1. The reinforcing plate 10 can effectively enhance the structural strength of the housing, improve the ability to resist impact loads, and is not easily damaged.

[0024] Please refer to Figure 2 , a number of reinforcing ribs 11 are installed between the first differential housing 1 and the first connecting plate 3, and a number of reinforcing ribs 11 are installed between the second differential housing 2 and the second connecting plate 4. Through the reinforcing ribs 11, the connection between the first differential housing 1 and the first connecting plate 3 and between the second differential housing 2 and the second connecting plate 4 can be made more stable, thereby strengthening the structural strength of the differential housing.

[0025] Please refer to Figure 1 , the reinforcing ribs 11 are evenly distributed along the circumferential direction of the connecting flange 5. The reinforcing ribs 11 can make the load distribution between the first differential housing 1 and the first connecting plate 3 and between the second differential housing 2 and the second connecting plate 4 uniform, thereby strengthening the strength of the differential housing, effectively improving the quality of the differential, and extending the service life.

[0026] Please refer to Figure 5, the safety structures 12 inside the first connecting plate 3 and the second connecting plate 4 are staggered from each other, avoiding the influence of excessive holes on the connection and fixation of the first connecting plate 3 and the second connecting plate 4 to the connecting flange 5. The safety structures 12 are evenly distributed inside the first connecting plate 3 and the second connecting plate 4, which can evenly distribute the load on the first connecting plate 3 and the second connecting plate 4, thereby strengthening the strength of the differential housing.

[0027] Please refer to Figure 1 , the mounting holes 9 are evenly distributed inside the connecting flange 5. Bolts pass through the mounting holes 9 to fix the first connecting plate 3, the second connecting plate 4 and the connecting flange 5 through bolts and nuts, which conveniently realizes the installation and disassembly of the first connecting plate 3, the second connecting plate 4 and the connecting flange 5, and can also evenly distribute the load.

[0028] Please refer to Figure 3 , a convex block 20 is installed at the lower part of the limiting rod 19, which is convenient to clamp the convex block 20 inside the lower clamping groove 16, so as to fix the first connecting plate 3 and the second connecting plate 4 to the connecting flange 5 respectively.

[0029] Working principle: When in use, bolts pass through the mounting holes 9 to fix the first connecting plate 3, the second connecting plate 4 and the connecting flange 5 through bolts and nuts, which conveniently realizes the installation and disassembly of the first connecting plate 3, the second connecting plate 4 and the connecting flange 5. The limiting rod 19 enters the lower groove 14 through the upper groove 13 to contact the limiting plate 18. Under the action of the limiting rod 19, the convex block 20 contacts the limiting plate 18 through the upper clamping groove 15. Rotate the limiting rod 19, and under the action of the return spring 17, the convex block 20 can be clamped inside the lower clamping groove 16, so as to realize the fixation of the first connecting plate 3 and the second connecting plate 4 to the connecting flange 5. When the equipment needs to be disassembled and maintained, first remove the bolts inside the mounting holes 9, and then by pressing and rotating the limiting rod 19, under the elastic force of the return spring 17, the convex block 20 can be moved into the upper clamping groove 15 to take out the limiting rod 19, and the first connecting plate 3, the second connecting plate 4 and the connecting flange 5 are separated, and the inside of the equipment can be cleaned and maintained.

[0030] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A differential housing with high structural strength, comprising a first differential housing (1) and a second differential housing (2), characterized in that: A first connecting plate (3) is installed at the bottom of the first differential housing (1), a second connecting plate (4) is installed at the top of the second differential housing (2), the first connecting plate (3) and the second connecting plate (4) are connected by a connecting flange (5), a differential cavity (6) is arranged in the middle of the first differential housing (1), half-axle holes (7) communicating with the differential cavity (6) are arranged at the top of the first differential housing (1) and the bottom of the second differential housing (2), planetary gear shaft holes (8) are arranged at both ends of the first differential housing (1), the planetary gear shaft holes (8) penetrate through the differential cavity (6) horizontally, a plurality of mounting holes (9) are arranged inside the connecting flange (5), the mounting holes (9) penetrate through the first connecting plate (3), the second connecting plate (4) and the connecting flange (5), and a plurality of groups of safety structures (12) are installed between the first connecting plate (3) and the connecting flange (5) and between the second connecting plate (4) and the connecting flange (5). The safety structure (12) includes an upper groove (13) respectively penetrating through the first connecting plate (3) and the second connecting plate (4), and a lower groove (14) located inside the connecting flange (5). An upper clamping groove (15) is installed on one outer wall of the upper groove (13), a lower clamping groove (16) is installed on the lower part of the other outer wall of the upper groove (13), the upper groove (13), the lower groove (14), the upper clamping groove (15) and the lower clamping groove (16) communicate with each other, a return spring (17) is installed inside the lower groove (14), a limiting plate (18) is installed at the other end of the return spring (17), and a limiting rod (19) is arranged inside the upper groove (13).

2. The differential housing with high structural strength according to claim 1, wherein: Reinforcing plates (10) are installed on the inner wall of the first differential housing (1).

3. A differential housing with high structural strength according to claim 1, characterized in that: A plurality of reinforcing ribs (11) are installed between the first differential housing (1) and the first connecting plate (3), and a plurality of reinforcing ribs (11) are installed between the second differential housing (2) and the second connecting plate (4).

4. The differential case with high structural strength according to claim 3, characterized in that: The reinforcing ribs (11) are evenly distributed along the circumferential direction of the connecting flange (5).

5. A differential housing with high structural strength according to claim 1, characterized in that: The safety structures (12) located inside the first connecting plate (3) and the second connecting plate (4) are staggered from each other, and the safety structures (12) are evenly distributed inside the first connecting plate (3) and the second connecting plate (4).

6. The differential housing with high structural strength according to claim 1, characterized in that: The mounting holes (9) are evenly distributed inside the connecting flange (5).

7. The differential housing with high structural strength according to claim 1, wherein: A convex block (20) is installed at the lower part of the limiting rod (19).

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