Impact-resistant differential case

Abstract

The utility model provides an anti -impact differential mechanism shell relates to differential mechanism shell technical field, including differential mechanism shell and flange, the top outer wall of differential mechanism shell is fixedly installed with the connecting plate, the both sides fixed mounting of connecting plate has fixed column. In the utility model, spring is always in pre -tight state, and its spring force continuously pushes the sliding plate and slides along the fixed column outer wall to the connecting plate direction, and further drives the rubber buffer strip of anti -impact shell and inner wall and tightly fits in the outer wall of differential mechanism shell, when is received the collision, the rubber buffer strip of close -fit can first time and differential mechanism shell synchronous stress, through the self elastic deformation rapid absorption initial impact energy, greatly weakens the direct action of collision to differential mechanism shell, reduces the risk of surface damage of differential mechanism shell, simultaneously, the continuous fit of rubber buffer strip not only can buffer impact, can also reduce the clearance friction between differential mechanism shell and anti -impact shell, reduces the vibration transmission.

Description

Technical Field

[0001] This utility model relates to the field of differential housing technology, and in particular to an impact-resistant differential housing. Background Technology

[0002] As a core component of a vehicle's transmission system, the differential's main function is to allow the left and right drive wheels to rotate at different speeds when the vehicle is turning, thereby ensuring smooth driving and handling stability. The differential housing, serving as a protective carrier for the internal gears, bearings, and other precision parts, directly bears the impact loads, vibrations, and torque transmission stresses generated during vehicle operation. Its structural strength and impact resistance directly determine the differential's service life and driving safety.

[0003] In existing technologies, traditional differential housings mostly adopt a single metal housing structure. Although they have a certain load-bearing capacity, their impact resistance design has obvious defects: First, when the vehicle is driving on a bumpy road, encountering an obstacle collision, or braking suddenly, the external impact load will directly act on the housing body, which can easily cause cracks, deformation, and other damage to the housing, leading to the failure of internal parts. Second, the housing itself lacks an effective buffer and energy absorption structure, and the vibration generated by the impact will be continuously transmitted to the internal precision components, accelerating gear meshing wear and bearing aging. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art and to propose an impact-resistant differential housing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an anti-impact differential housing, comprising a differential housing and a flange, wherein a connecting plate is symmetrically fixedly installed on the outer wall of the top of the differential housing, and a fixing post is fixedly installed on both sides of the connecting plate, a stop block is fixedly installed at the end of the fixing post away from the connecting plate, a sliding plate is slidably connected to the outer wall of the fixing post, an anti-impact shell is fixedly installed on the inner side of the sliding plate, rubber buffer strips are uniformly fixedly installed on the inner wall of the anti-impact shell, and a spring is sleeved on the outer wall of the fixing post.

[0006] Preferably, the number of impact-resistant shells is two sets.

[0007] Preferably, one end of the spring is fixedly connected to the stop block, and the other end of the spring is fixedly connected to the sliding plate.

[0008] Preferably, the differential housing is located on top of the flange, and the differential housing is fixedly connected to the flange.

[0009] Preferably, a reinforcing plate is uniformly fixedly installed inside the top of the flange, and a reinforcing plate is fixedly installed on both sides of the reinforcing plate.

[0010] Preferably, the reinforcing plate is fixedly connected to the flange.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the spring is always in a pre-tensioned state, and its elastic force continuously pushes the sliding plate to slide along the outer wall of the fixed column towards the connecting plate, thereby causing the rubber buffer strip of the impact-resistant shell and inner wall to fit tightly against the outer wall of the differential housing. When it is impacted, the tightly fitted rubber buffer strip can be simultaneously subjected to force with the differential housing at the first moment, and quickly absorb the initial impact energy through its own elastic deformation, greatly weakening the direct effect of the impact on the differential housing and reducing the risk of damage to the surface of the differential housing. At the same time, the continuous fit of the rubber buffer strip can not only buffer the impact, but also reduce the gap friction between the differential housing and the impact-resistant shell, and reduce vibration transmission.

[0012] 2. In this utility model, the overall rigidity of the flange is enhanced by the supporting effect of the internal reinforcing plate and the strengthening plate, which effectively resists bending, torsion and other deformations caused by load, and avoids cracks or plastic deformation of the flange. Attached Figure Description

[0013] Figure 1 This utility model provides an overall structural diagram of an impact-resistant differential housing; Figure 2 This utility model proposes an impact-resistant differential housing. Figure 1 Enlarged view of point A in the middle; Figure 3 This utility model provides a partial structural schematic diagram of an impact-resistant differential housing; Figure 4 This invention provides a partial exploded view of the structure of an impact-resistant differential housing.

[0014] Legend: 1. Differential housing; 2. Flange; 3. Connecting plate; 4. Fixing post; 5. Stop; 6. Sliding plate; 7. Impact-resistant shell; 8. Rubber buffer strip; 9. Spring; 10. Reinforcing plate; 11. Strengthening plate. Detailed Implementation

[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0017] Example 1: As Figures 1-4 As shown, this utility model provides a technical solution: an anti-impact differential housing, including a differential housing 1 and a flange 2. A connecting plate 3 is symmetrically fixedly installed on the outer wall of the top of the differential housing 1. Fixing posts 4 are fixedly installed on both sides of the connecting plate 3. A stop block 5 is fixedly installed at the end of the fixing post 4 away from the connecting plate 3. A sliding plate 6 is slidably connected to the outer wall of the fixing post 4. An anti-impact shell 7 is fixedly installed on the inner side of the sliding plate 6. Rubber buffer strips 8 are uniformly fixedly installed on the inner wall of the anti-impact shell 7. A spring 9 is sleeved on the outer wall of the fixing post 4. There are two sets of anti-impact shells 7. One end of the spring 9 is fixedly connected to the stop block 5, and the other end of the spring 9 is fixedly connected to the sliding plate 6. The differential housing 1 is located on top of the flange 2, and the differential housing 1 and the flange 2 are fixedly connected.

[0018] In this embodiment, the spring 9 is always in a pre-tensioned state, and its elastic force continuously pushes the sliding plate 6 to slide along the outer wall of the fixed column 4 towards the connecting plate 3, thereby causing the impact-resistant shell 7 and the rubber buffer strip 8 on the inner wall to fit tightly against the outer wall of the differential housing 1. When it is impacted, the tightly fitted rubber buffer strip 8 can be simultaneously subjected to force with the differential housing 1 at the first moment, and quickly absorb the initial impact energy through its own elastic deformation, greatly weakening the direct effect of the impact on the differential housing 1 and reducing the risk of surface damage to the differential housing 1. At the same time, the continuous fit of the rubber buffer strip 8 can not only buffer the impact, but also reduce the gap friction between the differential housing 1 and the impact-resistant shell 7, and reduce vibration transmission.

[0019] Example 2: As Figure 1 and Figure 3 As shown, a reinforcing plate 10 is uniformly fixedly installed inside the top of the flange 2, and a reinforcing plate 11 is fixedly installed on both sides of the reinforcing plate 10. The reinforcing plate 11 is fixedly connected to the flange 2.

[0020] In this embodiment, the overall rigidity of the flange 2 is enhanced by the supporting effect of the internal reinforcing plate 10 and the reinforcing plate 11, which effectively resists bending, torsion and other deformations caused by load, and prevents cracks or plastic deformation of the flange 2.

[0021] The working principle of this embodiment is as follows: After the device is assembled, the spring 9, which is sleeved on the outer wall of the fixed column 4, is in a pre-tightened state. Its elastic force will continuously act on the sliding plate 6, pushing the sliding plate 6 to slide along the outer wall of the fixed column 4 towards the connecting plate 3. Since the sliding plate 6 is fixedly connected to the impact-resistant shell 7, the impact-resistant shell 7 moves synchronously with the sliding plate 6, ultimately causing the rubber buffer strip 8 on the inner wall to fit tightly against the outer wall of the differential housing 1, forming a normal buffer protection state. When the differential housing 1 encounters an external collision during vehicle operation, the collision force first acts on the impact-resistant shell 7. The impact-resistant shell 7 transmits the force to the tightly fitted rubber buffer strip 8. The rubber buffer strip 8 immediately undergoes elastic deformation, absorbing and buffering the impact energy generated by the collision, greatly reducing the direct impact of the collision on the differential housing 1, and reducing the risk of surface damage to the differential housing 1. At the same time, the continuous fit of the rubber buffer strip 8 not only buffers the impact, but also reduces the gap friction between the differential housing 1 and the impact-resistant shell 7, reducing vibration transmission. Furthermore, the overall rigidity of the flange 2 is enhanced by the supporting effect of the internal reinforcing plate 10 and the reinforcing plate 11, which effectively resists bending, torsion and other deformations caused by load, and prevents cracks or plastic deformation of the flange 2.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An impact-resistant differential housing, comprising a differential housing (1) and a flange (2), characterized in that: A connecting plate (3) is symmetrically fixedly installed on the top outer wall of the differential housing (1). A fixing column (4) is fixedly installed on both sides of the connecting plate (3). A stop block (5) is fixedly installed on the end of the fixing column (4) away from the connecting plate (3). A sliding plate (6) is slidably connected to the outer wall of the fixing column (4). An impact-resistant shell (7) is fixedly installed on the inner side of the sliding plate (6). Rubber buffer strips (8) are uniformly fixedly installed on the inner wall of the impact-resistant shell (7). A spring (9) is sleeved on the outer wall of the fixing column (4).

2. The shock-resistant differential housing according to claim 1, characterized in that: The number of impact-resistant shells (7) is two sets.

3. The shock-resistant differential housing according to claim 1, characterized in that: One end of the spring (9) is fixedly connected to the stop block (5), and the other end of the spring (9) is fixedly connected to the sliding plate (6).

4. The shock-resistant differential housing according to claim 1, characterized in that: The differential housing (1) is located on top of the flange (2), and the differential housing (1) is fixedly connected to the flange (2).

5. The shock-resistant differential housing according to claim 1, characterized in that: A reinforcing plate (10) is uniformly fixedly installed inside the top of the flange (2), and a reinforcing plate (11) is fixedly installed on both sides of the reinforcing plate (10).

6. The shock-resistant differential housing according to claim 5, characterized in that: The reinforcing plate (11) is fixedly connected to the flange (2).

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