Differential mounting structure

Abstract

This utility model discloses a differential mounting structure, belonging to the field of automotive technology. It solves the problem of poor vibration damping performance of existing differentials. It mainly includes a subframe and a differential. The subframe includes a front crossbeam and a rear crossbeam. Front mounts are installed on the left and right sides of the bottom of the front crossbeam. The front mount includes a front inner liner tube and a front bolt. The top of the front inner liner tube is connected to an upper cover plate, and a lower cover plate is provided on the lower side of the front inner liner tube. A rubber pad is installed on the upper side of the lower cover plate. The front inner liner tube is also fitted with a front rubber sleeve. The front bolt is threaded to the front crossbeam. Lugs are connected to the left and right sides of the front end of the differential. A fixing cylinder is provided at the front end of the lugs, and the rubber sleeves on both sides are respectively installed into the corresponding fixing cylinders on both sides. Rear mounting holes are opened on the left and right sides of the front end face of the rear crossbeam. A rear mount is installed in the rear mounting holes. The rear mount includes a rear inner liner tube, and a rear rubber sleeve is fitted into the rear inner liner tube. The rear inner liner tube is fixedly installed at the rear end of the differential.

Description

Technical Field

[0001] This utility model belongs to the field of automotive technology, and more specifically, it relates to a differential mounting structure. Background Technology

[0002] Currently, many car models have differentials that are rigidly connected to the rear axle. This installation method means that the vibration of the differential cannot be effectively damped, which in turn affects the driver's driving comfort. Summary of the Invention

[0003] The purpose of this invention is to provide a differential mounting structure to overcome the problem of poor vibration damping performance of differentials in the prior art.

[0004] This utility model is achieved using the following technical solution: a differential mounting structure, including a subframe and a differential. The subframe includes a front crossbeam and a rear crossbeam. The left and right sides of the bottom of the front crossbeam are respectively equipped with downwardly extending front mounts. Each front mount includes a front inner liner tube and a front bolt. The top of the front inner liner tube is connected to an upper cover plate, and a lower cover plate is provided on the lower side of the front inner liner tube. A rubber pad is installed on the upper side of the lower cover plate. The front inner liner tube is also fitted with a front rubber sleeve, the top of which has a raised edge. The front bolt passes sequentially through the lower cover plate and the front... The inner liner tube and the upper cover plate are threadedly connected to the front crossbeam. The left and right sides of the front end of the differential are respectively connected to the ear plates. The front end of the ear plates is provided with a fixing cylinder. The rubber cylinders on both sides are respectively installed into the corresponding fixing cylinders on both sides. The fixing cylinders are between the upper cover plate and the lower cover plate. The left and right sides of the front end face of the rear crossbeam are respectively provided with rear mounting holes that pass through the rear crossbeam. The rear mounting holes are installed with a rear suspension. The rear suspension includes a rear inner liner tube. The rear inner liner tube is fitted with a rear rubber cylinder. The rear inner liner tube is fixedly installed at the rear end of the differential by a rear bolt.

[0005] Furthermore, front mounting holes are respectively opened on the left and right sides of the bottom of the front crossbeam, and fixed bushings are respectively installed in the front mounting holes on both sides. The fixed bushings are provided with internal threaded holes, and the front bolts are threadedly connected to the fixed bushings.

[0006] Furthermore, the front rubber sleeve is installed in the front outer cylinder, and the front rubber sleeve and the front outer cylinder are vulcanized together.

[0007] Furthermore, the front inner liner tube is vulcanized and connected to the front rubber cylinder.

[0008] Furthermore, connecting holes are respectively provided on the rear inner liner tubes on both sides, and threaded holes corresponding to the connecting holes are respectively provided on the left and right sides of the rear end of the differential, and the rear bolts are inserted into the connecting holes and the threaded holes.

[0009] Furthermore, the rear inner liner tube is vulcanized and connected to the rear rubber cylinder.

[0010] Furthermore, the rear rubber sleeve is installed in the rear outer cylinder, the rear rubber sleeve and the rear outer cylinder are vulcanized together, and the rear outer cylinder is inserted into the rear mounting hole and is interference-fitted with the rear mounting hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention improves the differential's vibration damping capability by mounting the differential on the subframe and connecting the front crossbeam of the subframe to the differential via two front mounts, and the rear crossbeam of the subframe to the differential via two rear mounts. This improves the driver's driving comfort. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present invention from the front view direction; Figure 2 This is a perspective view of the utility model from the rear view direction; Figure 3 This is a perspective view of the present invention from a downward angle; Figure 4 This is a schematic diagram of the front suspension structure described in this utility model; Figure 5 This is a schematic diagram of the rear suspension structure described in this utility model.

[0013] In the diagram: 1. Subframe; 2. Differential; 3. Front crossbeam; 4. Rear crossbeam; 5. Front mount; 6. Front inner liner tube; 7. Front bolt; 8. Upper cover plate; 9. Lower cover plate; 10. Rubber pad; 11. Front rubber sleeve; 12. Lug; 13. Fixing sleeve; 14. Rear mounting hole; 15. Rear mount; 16. Rear inner liner tube; 17. Fixing liner tube; 18. Rear bolt; 19. Rear rubber sleeve; 20. Rear outer sleeve; 21. Front outer sleeve. Detailed Implementation

[0014] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this utility model. A differential mounting structure includes a subframe 1 and a differential 2, wherein the subframe 1 includes a front crossbeam 3 and a rear crossbeam 4. The front crossbeam 3 has front mounting holes on its left and right sides at the bottom, and a fixing liner 17 is installed in each of the front mounting holes. The fixing liner 17 has an internal threaded hole. The front suspension 5 extends downwards on the left and right sides at the bottom of the front crossbeam 3. The front suspension 5 includes a front inner liner 6 and a front bolt 7. The top of the front inner liner 6 is connected to an upper cover plate 8, and a lower cover plate 9 is provided on the lower side of the front inner liner 6. A rubber pad 10 is installed on the upper side of the lower cover plate 9. The front inner liner 6 is also fitted with a front rubber cylinder 11, and the top of the front rubber cylinder 11 has a raised edge 12. The front inner liner 6 and the front rubber cylinder 11 are vulcanized together. The front rubber cylinder 11 is installed in the front outer cylinder 21, and the front rubber cylinder 11 and the front outer cylinder 21 are vulcanized together. In this invention, the front outer cylinder 21 is pressed into the fixed cylinder 13. When the front rubber cylinder 11 is installed into the fixed cylinder 13 through the front outer cylinder 21...

[0015] The front bolt 7 passes sequentially through the lower cover plate 9, the front inner liner tube 6, and the upper cover plate 8, and is threadedly connected to the fixed liner tube 17 on the front crossbeam 3. In this invention, the front bolt 7 fixes the lower cover plate 9, the front inner liner tube 6, and the upper cover plate 8 onto the front crossbeam 3.

[0016] The front end of the differential 2 is connected to ear plates on the left and right sides respectively. The front end of the ear plates is provided with a fixing cylinder 13. The rubber cylinders on both sides are respectively installed into the corresponding fixing cylinders 13 on both sides. The fixing cylinders 13 are located between the upper cover plate 8 and the lower cover plate 9. The outer diameter of the upper cover plate 8, the outer diameter of the lower cover plate 9, the outer diameter of the rubber pad 10, and the outer diameter of the flange 12 are all larger than the inner diameter of the fixing cylinder 13.

[0017] This invention achieves the connection between the differential 2 and the front crossbeam 3 via two front suspension mounts 5 by installing the rubber sleeves on both sides into the two fixed cylinders 13, and installing the fixed cylinders 13 between the upper cover plate 8 and the lower cover plate 9. When the differential 2 vibrates, the front rubber sleeves 11 and rubber pads 10 in the two front suspension mounts 5 can effectively dampen the differential 2.

[0018] The rear crossbeam 4 has rear mounting holes 14 on its left and right sides at the front end, and a rear suspension 15 is installed in the rear mounting holes 14.

[0019] The rear suspension 15 includes a rear inner liner tube 16. The left and right sides of the rear end of the differential 2 are respectively provided with rear threaded holes corresponding to the rear inner liner tube 16. The rear bolt 18 is inserted into the rear inner liner tube 16 and the rear threaded hole, so that the rear inner liner tube 16 is fixedly installed at the rear end of the differential 2 by the rear bolt 18.

[0020] The rear inner liner tube 16 is fitted with a rear rubber sleeve 19, and the rear inner liner tube 16 and the rear rubber sleeve 19 are vulcanized together. The rear suspension 15 achieves a vibration reduction effect through the rear rubber sleeve 19.

[0021] The rear rubber sleeve 19 is installed inside the rear outer sleeve 20, and the rear rubber sleeve 19 and the rear outer sleeve 20 are vulcanized together. The rear outer sleeve 20 is inserted into the rear mounting hole 14 and is interference-fitted with the rear mounting hole 14. When installing the rear suspension 15, the rear outer sleeve 20 can be pressed into the rear mounting hole 14. The rear inner liner tube 16 is made of aluminum alloy, and the rear outer sleeve 20 is made of plastic.

[0022] The rear end of the differential 2 described in this invention is connected to the rear crossbeam 4 of the subframe 1 via left and right rear suspension mounts 15. When the differential 2 vibrates, the rear rubber sleeves 19 in the left and right rear suspension mounts 15 can effectively dampen the differential 2. The differential 2 described in this invention is mounted on the subframe 1 via left and right front suspension mounts 5 and left and right rear suspension mounts 15, which can effectively improve the vibration damping capability of the differential 2, thereby improving the driver's driving comfort.

Claims

1. A differential mounting structure, characterized in that, The vehicle includes a subframe (1) and a differential (2). The subframe (1) includes a front crossbeam (3) and a rear crossbeam (4). The front crossbeam (3) has downwardly extending front mounts (5) installed on the left and right sides of its bottom. The front mounts (5) include a front inner liner tube (6) and a front bolt (7). The top of the front inner liner tube (6) is connected to an upper cover plate (8). A lower cover plate (9) is provided on the lower side of the front inner liner tube (6). A rubber pad (10) is installed on the upper side of the lower cover plate (9). The front inner liner tube (6) is also fitted with a front rubber cylinder (11). The top of the front rubber cylinder (11) is provided with a flange (12). The front bolt (7) passes through the lower cover plate (9), the front inner liner tube (6), and the upper cover plate (8) in sequence and is connected to the front crossbeam. The beam (3) is threaded. The left and right sides of the front end of the differential (2) are connected to the ear plates respectively. The front end of the ear plate is provided with a fixing cylinder (13). The rubber cylinders on both sides are respectively installed in the corresponding fixing cylinders (13) on both sides. The fixing cylinder (13) is between the upper cover plate (8) and the lower cover plate (9). The left and right sides of the front end face of the rear crossbeam (4) are respectively provided with rear mounting holes (14) that pass through the rear crossbeam (4). The rear mounting hole (14) is installed with a rear suspension (15). The rear suspension (15) includes a rear inner liner tube (16). The rear inner liner tube (16) is fitted with a rear rubber cylinder (19). The rear inner liner tube (16) is fixedly installed at the rear end of the differential (2) by a rear bolt (18).

2. The differential mounting structure according to claim 1, characterized in that, The front crossbeam (3) has front mounting holes on the left and right sides of its bottom, and a fixing liner (17) is installed in each of the front mounting holes. The fixing liner (17) has an internal thread hole, and the front bolt (7) is threadedly connected to the fixing liner (17).

3. The differential mounting structure according to claim 1, characterized in that, The front rubber sleeve (11) is installed in the front outer sleeve (21), and the front rubber sleeve (11) and the front outer sleeve (21) are vulcanized together.

4. The differential mounting structure according to claim 1, characterized in that, The front inner liner tube (6) is vulcanized and connected to the front rubber tube (11).

5. A differential mounting structure according to claim 1, characterized in that, The differential (2) has threaded holes on the left and right sides of its rear end, which correspond one-to-one with the rear inner liner tube (16). The rear bolt (18) is inserted into the rear inner liner tube (16) and the threaded hole to connect the rear inner liner tube (16) with the differential (2).

6. A differential mounting structure according to claim 1, characterized in that, The rear inner liner tube (16) is vulcanized to the rear rubber tube (19).

7. A differential mounting structure according to claim 6, characterized in that, The rear rubber sleeve (19) is installed in the rear outer sleeve (20), the rear rubber sleeve (19) and the rear outer sleeve (20) are vulcanized together, and the rear outer sleeve (20) is inserted into the rear mounting hole (14) and is interference-fitted with the rear mounting hole (14).

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