An integrated differential housing structure

Abstract

This utility model provides an integrated differential housing structure, relating to the field of differential housing technology. It includes a housing body with a flange fixedly connected to its outer surface. A buffer protection assembly is connected to the bottom of the flange. The buffer protection assembly includes a rubber sleeve, with a slip ring connected to the center of the bottom of the rubber sleeve. Three sets of fixing brackets are connected to the inner walls of both sides of the rubber sleeve, and support brackets are connected to the inner sides of each fixing bracket. A slider is connected to one side surface of each support bracket. In this utility model, when a vehicle travels on a bumpy road, causing vibration and stress, this stress first acts on the rubber sleeve wrapped around the outer surface of the housing body, causing the rubber sleeve to deform for initial buffering. Simultaneously, the deformed rubber sleeve can push a first and third spring in conjunction with a damper to achieve shock absorption and reduce the impact on the inside of the differential housing body, thus protecting the housing body.

Description

Technical Field

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

[0002] The differential housing is the "skeleton" of the differential, enclosing and protecting the internal gear set, planetary gears, half-shaft gears, etc. Engine power is input to the differential housing via the drive shaft, driving the planetary gear carrier to rotate. Then, through the meshing of the planetary gears and half-shaft gears, the power is distributed to the left and right half-shafts, ultimately driving the wheels.

[0003] As disclosed in announcement number CN221704352U, a differential housing relates to the field of differential technology. It includes a housing body with a rubber sleeve fitted onto it, and a cavity between the inner wall of the rubber sleeve and the outer surface of the housing body. This application utilizes the coordinated arrangement of the rubber sleeve, slide tube, slide rod, and buffer to ensure that when the housing is subjected to external stress, the stress first acts on the rubber sleeve, causing it to deform for initial cushioning. Simultaneously, the deformed rubber sleeve pushes the slide tube towards the slide rod, compressing the buffer installed inside the slide tube for secondary cushioning. This prevents stress from directly acting on the housing body, minimizing the lack of cushioning in existing differential housings. When the vehicle is traveling on bumpy roads, the stress generated by the bumps can act on the differential housing and directly transfer kinetic energy to the differential, causing impact and even damage to the differential's internal components, severely affecting its service life.

[0004] This patent can provide a buffering effect through the rubber sleeve and the sliding tube. However, in the existing technology, the buffer only relies on a single set of springs to absorb energy, and its linear elastic characteristics are difficult to adapt to multi-directional and high-frequency impact loads under complex road conditions. Utility Model Content

[0005] The purpose of this invention is to solve the problem that in existing technical solutions, the buffer relies on only a single set of springs to absorb energy, and its linear elastic characteristics are difficult to adapt to multi-directional, high-frequency impact loads under complex road conditions.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an integrated differential housing structure, comprising a housing body, a flange fixedly connected to the outer surface of the housing body, a buffer protection component connected to the bottom of the flange, the buffer protection component comprising a rubber sleeve, a slip ring connected to the bottom center of the rubber sleeve, three sets of fixing brackets connected to the inner walls of both sides of the rubber sleeve, support brackets connected to the inner sides of both fixing brackets, a slider connected to one side surface of the support bracket, a first spring sleeved on the surface of the support bracket near the slider, a first rotating shaft connected to the front end of the slider, a rotating rod connected to the surface of the first rotating shaft, and a second rotating shaft connected to the front end of the rotating rod.

[0007] Furthermore, a slot is provided at the center of the interior of the fixing frame, and the interior of the slot is connected to...

[0008] First spring.

[0009] Furthermore, a top block is connected to the front end of the first spring, and a damper is connected to the rubber sleeve near the inner wall of the fixing frame.

[0010] Furthermore, the top block forms an elastic structure with the first spring through a slot, and the support frame forms a sliding connection with the slider.

[0011] Furthermore, the top block has a T-shape, and the slider is rotatably connected to the rotating rod via a first rotating shaft.

[0012] Furthermore, the rotating rod is rotatably connected to the housing body via a second rotating shaft.

[0013] Furthermore, both sides of the rubber sleeve are connected to a disassembly and assembly assembly, which includes a side lug. A sleeve is connected to the bottom surface of the side lug, and a fixing bolt is inserted into the inside of the sleeve.

[0014] Furthermore, a limit block is fixedly connected to the surface of the fixing bolt, and a third spring is sleeved on the front end surface of the fixing bolt.

[0015] Furthermore, the limiting block and the third spring form an elastic structure, and the outer surface of the limiting block is in contact with the inner wall of the sleeve.

[0016] Furthermore, the flange has a threaded hole at the position where it matches the fixing bolt, and the fixing bolt passes through the sleeve to form a threaded connection with the threaded hole.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0018] 1. In this utility model, when a vehicle is traveling on a bumpy road, causing the vehicle to vibrate and generate stress, the stress first acts on the rubber sleeve wrapped around the outer surface of the housing body, causing the rubber sleeve to deform for initial buffering. At the same time, the deformed rubber sleeve can push the first spring and the third spring to cooperate with the damper to achieve the effect of shock absorption and buffering, reducing the impact on the inside of the differential housing body and realizing the protection of the housing body.

[0019] 2. In this utility model, when installing the rubber sleeve, it can be fixed by fixing bolts. After fixing, the third spring will also push the limiting block with its own elastic force, reducing the possibility of the fixing bolts loosening and strengthening the firmness of the rubber sleeve during installation. Attached Figure Description

[0020] Figure 1 This utility model provides a three-dimensional structural diagram of an integrated differential housing structure;

[0021] Figure 2 This utility model presents a three-dimensional structural diagram of an integrated differential housing structure from another angle.

[0022] Figure 3 An exploded structural diagram of an integrated differential housing structure is provided for this utility model.

[0023] Figure 4 This utility model provides a schematic diagram of the cross-sectional structure of the mounting bracket for an integrated differential housing.

[0024] Figure 5 This utility model presents a schematic diagram of the sleeve cross-sectional structure of an integrated differential housing.

[0025] Legend: 1. Main body of the housing; 2. Flange; 3. Buffer protection assembly; 301. Rubber sleeve; 302. Slip ring; 303. Fixing frame; 304. Support frame; 305. Slider; 306. First spring; 307. First rotating shaft; 308. Rotating rod; 309. Second rotating shaft; 310. Top block; 311. Damper; 312. Slot; 313. Second spring; 4. Assembly / disassembly assembly; 401. Side lug; 402. Sleeve; 403. Third spring; 404. Fixing bolt; 405. Limiting block. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] Example 1, as Figure 1 - Figure 4 As shown, this utility model provides an integrated differential housing structure, including a housing body 1. A flange 2 is fixedly connected to the outer surface of the housing body 1. A buffer protection component 3 is connected to the bottom of the flange 2. The buffer protection component 3 includes a rubber sleeve 301. A slip ring 302 is connected to the center of the bottom of the rubber sleeve 301. Three sets of fixing brackets 303 are connected to the inner walls of both sides of the rubber sleeve 301. Support brackets 304 are connected to the inner sides of both sides of the fixing brackets 303. A slider 305 is connected to one side surface of the support bracket 304. A first spring 306 is sleeved on the surface of the support bracket 304 near the slider 305. A first rotating shaft 307 is connected to the front end of the slider 305. A rotating rod is connected to the surface of the first rotating shaft 307. 308, the front end of the rotating rod 308 is connected to the second rotating shaft 309, the center of the fixed frame 303 is provided with a slot 312, the inside of the slot 312 is connected to the first spring 306, the front end of the first spring 306 is connected to the top block 310, the rubber sleeve 301 is connected to the damper 311 near the inner wall of the fixed frame 303, the top block 310 and the first spring 306 form an elastic structure through the slot 312, the support frame 304 and the slider 305 form a sliding connection, the top block 310 is T-shaped, the slider 305 is rotatably connected to the rotating rod 308 through the first rotating shaft 307, and the rotating rod 308 is rotatably connected to the housing body 1 through the second rotating shaft 309.

[0029] The effect achieved in Embodiment 1 is that when a vehicle travels on a bumpy road, the vibration caused by the uneven road surface generates multi-directional stress. This stress first acts on the rubber sleeve 301 wrapped around the outer surface of the housing body 1. The rubber sleeve 301 absorbs and disperses the impact energy through its own elastic deformation. At the same time, the deformed rubber sleeve 301 pushes the fixing frame 303 towards the housing body 1. At this time, the housing body 1 forms a lever-type rotation structure with the rotating rod 308 through the second rotating shaft 309. The other side of the rotating rod 308 converts the horizontal thrust into the linear motion of the slider 305 on the surface of the support frame 304 through the first rotating shaft 307. The sliding action gradually compresses the first spring 306, utilizing the nonlinear deformation characteristics of the spring to achieve secondary buffering. During this process, the top block 310, after being compressed, forms a vertical elastic cancellation with the second spring 313 through the slot 312. At the same time, the dampers 311 on both sides convert mechanical energy into heat energy through hydraulic damping effect. Finally, through the multi-stage synergistic action of the deformation of the rubber sleeve 301, lever transmission, compression of the first spring 306 and the second spring 313, and damping energy consumption, a three-dimensional buffer system is formed, which significantly reduces the impact intensity of stress waves on the gear set inside the differential and effectively extends the service life of the housing body 1 and transmission components.

[0030] Example 2, as Figure 1 and Figure 5 As shown, both sides of the rubber sleeve 301 are connected to the disassembly and assembly components 4. The disassembly and assembly components 4 include side ears 401. The bottom surface of the side ears 401 is connected to the sleeve 402. The sleeve 402 is inserted into the inside of the sleeve 402. The surface of the fixing bolt 404 is fixedly connected to the limit block 405. The front end surface of the fixing bolt 404 is sleeved with the third spring 403. The limit block 405 and the third spring 403 form an elastic structure. The outer surface of the limit block 405 is in contact with the inner wall of the sleeve 402. The flange 2 is provided with a threaded hole at the position that matches the fixing bolt 404. The fixing bolt 404 passes through the sleeve 402 and forms a threaded connection with the threaded hole.

[0031] The effect achieved in Embodiment 2 is that, when installing the rubber sleeve 301, the top of the fixing bolt 404 is aligned with the threaded hole on the bottom surface of the flange 2 and tightened, so that the front end of the fixing bolt 404 passes through the sleeve 402 to form a threaded connection. At this time, the third spring 403 continuously pushes the limiting block 405 tightly against the inner wall of the sleeve 402 through its elastic force. This effectively offsets the impact of vibration and impact generated during vehicle operation on the bolt connection by utilizing the spring preload, preventing the fixing bolt 404 from being stripped due to stress relaxation or high-frequency vibration. Furthermore, the axial limiting cooperation between the limiting block 405 and the sleeve 402 prevents the bolt from radially shifting or misaligning under complex stress conditions. Thus, the connection reliability between the rubber sleeve 301 and the flange 2 is significantly improved under the dual effects of mechanical locking and elastic compensation. At the same time, this structure supports quick disassembly and maintenance. The rubber sleeve 301 can be replaced without damage simply by loosening the fixing bolt 404, greatly reducing maintenance time and costs.

[0032] Working principle: When the vehicle travels on a bumpy road, the vibration stress caused by the uneven road surface first acts on the rubber sleeve 301 wrapped around the outer surface of the main body 1. The rubber sleeve 301 absorbs and disperses the impact energy through its own elastic deformation. Its deformation area simultaneously pushes the dual elastic system composed of the first spring 306 and the third spring 403. The first spring 306 achieves progressive compression in the horizontal direction through the sliding cooperation between the slider 305 and the support frame 304. The third spring 403 forms elastic compensation in the vertical direction through the axial displacement of the limiting block 405 inside the sleeve 402. Together with the dampers 311 on both sides, the mechanical vibration is converted into heat energy and dissipated. A three-dimensional buffer system is formed to effectively attenuate the impact intensity of stress waves on the gear set inside the differential. During the installation of the rubber sleeve 301, after the fixing bolt 404 passes through the side ear 401 and the threaded hole of the flange 2 and is locked, the third spring 403 continuously applies preload force to push the limit block 405 to press against the inner wall of the sleeve 402. This not only offsets the vibration relaxation effect during vehicle operation through elastic compensation, but also prevents the bolt from radially shifting by utilizing the frictional self-locking function between the limit block 405 and the sleeve 402. Under the dual action of mechanical locking and elastic preload, the connection reliability between the rubber sleeve 301 and the housing body 1 is significantly improved, ensuring that the differential can still maintain structural stability and transmission accuracy under complex working conditions.

[0033] The above are merely preferred embodiments of this utility model and are not intended to limit the 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 this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. An integrated differential housing structure comprising a housing main body (1), characterized in that: A flange (2) is fixedly connected to the outer surface of the housing body (1); The bottom of the flange (2) is connected to a buffer protection assembly (3), which includes a rubber sleeve (301). A slip ring (302) is connected to the bottom center of the rubber sleeve (301). Three sets of fixing brackets (303) are connected to the inner walls on both sides of the rubber sleeve (301). Support brackets (304) are connected to the inner sides of the fixing brackets (303). A slider (305) is connected to one side surface of the support bracket (304). A first spring (306) is sleeved on the surface of the support bracket (304) near the slider (305). A first rotating shaft (307) is connected to the front end of the slider (305). A rotating rod (308) is connected to the surface of the first rotating shaft (307). A second rotating shaft (309) is connected to the front end of the rotating rod (308).

2. An integrated differential case structure as described in claim 1, wherein: The fixing frame (303) has a slot (312) at its center, and a second spring (313) is connected inside the slot (312).

3. An integrated differential case structure as in claim 2, wherein: The front end of the second spring (313) is connected to a top block (310), and the rubber sleeve (301) is connected to a damper (311) near the inner wall of the fixing frame (303).

4. The integrated differential housing structure according to claim 3, characterized in that: The top block (310) forms an elastic structure with the second spring (313) through the slot (312), and the support frame (304) and the slider (305) form a sliding connection.

5. The integrated differential housing structure according to claim 4, characterized in that: The top block (310) is T-shaped, and the slider (305) is rotatably connected to the rotating rod (308) through the first rotating shaft (307).

6. The integrated differential housing structure according to claim 5, characterized in that: The rotating rod (308) is rotatably connected to the housing body (1) via the second rotating shaft (309).

7. The integrated differential housing structure according to claim 1, characterized in that: The rubber sleeve (301) is connected to a disassembly assembly (4) on both sides. The disassembly assembly (4) includes a side ear (401). A sleeve (402) is connected to the bottom surface of the side ear (401). A fixing bolt (404) is inserted into the inside of the sleeve (402).

8. An integrated differential housing structure according to claim 7, characterized in that: The surface of the fixing bolt (404) is fixedly connected to a limiting block (405), and a third spring (403) is sleeved on the front end surface of the fixing bolt (404).

9. An integrated differential housing structure according to claim 8, characterized in that: The limiting block (405) and the third spring (403) form an elastic structure, and the outer surface of the limiting block (405) is in contact with the inner wall of the sleeve (402).

10. An integrated differential housing structure according to claim 9, characterized in that: The flange (2) has a threaded hole at the position that matches the fixing bolt (404), and the fixing bolt (404) forms a threaded connection with the threaded hole after passing through the sleeve (402).

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