CN210634359U - Bush structure and vehicle - Google Patents

Abstract

The utility model belongs to the technical field of the suspension of vehicle, especially, relate to a bush structure and vehicle. The bushing structure comprises an inner pipe, an outer pipe and rubber; the outer wall of the inner pipe is provided with at least one concave part; the rubber is provided with a thickening part matched with the concave part; the rubber is connected between the outer wall of the inner tube and the inner wall of the outer tube, and the thickened portion is located in the concave portion. The utility model discloses increased the deformation space of rubber and the bonding area between rubber and the inner tube, guaranteed the requirement of vehicle ride comfort, satisfied the joint strength between rubber and the inner tube, promoted durable life, practiced thrift the cost of bushing structure, satisfied the rigidity performance of bushing structure, guaranteed the connection reliability.

Description

Bush structure and vehicle

Technical Field

The utility model belongs to the technical field of the suspension of vehicle, especially, relate to a bush structure and vehicle.

Background

At present, a suspension swing arm of a vehicle is flexibly connected with a sub-frame, a steering knuckle or a vehicle body through a bushing, wherein the bushing can be used as a guide device of a vehicle suspension system to control the motion track of the suspension swing arm and can also be used as an elastic connecting piece of an automobile suspension system to bear all directions of force and moment transmitted by the suspension swing arm, in the process, the bushing absorbs impact transmitted from an uneven road surface through deformation of rubber, the smoothness of the vehicle is improved, and the fatigue endurance life of the bushing directly influences the texture of an automobile product. The lining structure is an important factor in the suspension system of the vehicle, because the performance of the suspension system of the vehicle directly affects the performance of the suspension system, and the performance of the suspension system of the vehicle directly affects the safety of the vehicle.

In the bushing structure in the prior art, the end face of the inner pipe of the bushing needs to bear the pressure load of the bolt, so that the inner pipe needs to have a certain thickness to ensure sufficient connection strength, and the size of the outer diameter of the outer pipe is generally limited by the requirement of the overall vehicle space arrangement of a vehicle, namely, the outer pipe needs to be incapable of interfering with peripheral parts to ensure sufficient movement clearance. Therefore, the rubber thickness between the inner pipe and the outer pipe is limited, the rubber thickness is too thin and has poor durability, the rubber thickness is too thick, the rigidity performance of the bushing structure cannot be guaranteed, and meanwhile, a sufficient thickness space is not provided between the inner pipe and the outer pipe to increase the rubber thickness.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the lining structure and the vehicle are provided aiming at the problems that in the prior art, under the condition that the connection strength of an inner pipe and the space arrangement requirement of an outer pipe of the lining structure are ensured, the rigidity performance of the lining structure, the service life of rubber in the lining structure and the thickness space requirement of the rubber are difficult to meet simultaneously.

In order to solve the above technical problem, an embodiment of the present invention provides a bushing structure, including an inner tube, an outer tube, and rubber; the outer wall of the inner pipe is provided with at least one concave part; the rubber is provided with a thickening part matched with the concave part; the rubber is connected between an outer wall of the inner tube and an inner wall of the outer tube, the thickened portion being located in the recess.

Optionally, the recess is an annular groove provided on an outer wall of the inner tube.

Optionally, a central axis of the annular groove coincides with a central axis of the inner tube and a central axis of the outer tube.

Optionally, the groove depth of the annular groove is 1.5 mm.

Optionally, the wall thickness of the outer tube is 1-2 mm.

Optionally, the wall thickness of the inner tube at a position other than the position corresponding to the recess is 5-6 mm.

Optionally, the thickness of the rubber is greater than 5 mm.

Optionally, the inner diameter of the inner tube is greater than 14mm and the outer diameter of the outer tube is less than 40 mm.

According to the bushing structure of the embodiment of the utility model, the outer wall of the inner pipe is provided with at least one concave part; the rubber is provided with a thickening part matched with the concave part; the rubber is connected between the outer wall of the inner tube and the inner wall of the outer tube, and the thickened portion is located in the concave portion. The utility model discloses a convex surface of thickening portion is connected with the concave surface laminating of concave part, has increased the deformation space of rubber and the bonding area between rubber and the inner tube, after having guaranteed that the thickness of rubber can satisfy the requirement that absorbs the impact that uneven road surface transmitted and improve the vehicle ride comfort, can also satisfy the joint strength between rubber and the inner tube, make rubber be difficult for deformation extrusion when moving, also promoted its durable life simultaneously; and, under the condition of guaranteeing that the bushing structure has the same thickness, the rubber thickness of other positions on the rubber except for the thickening part need not to be increased, and the thickness of the inner tube corresponding to the rubber can all be thickened, so, on one hand, the total rubber material used by the rubber is reduced, under the condition of guaranteeing that the volume and the weight of the bushing structure are not increased, the cost of the bushing structure is saved, on the other hand, the rigidity performance of the bushing structure can also be satisfied, and the connection reliability is guaranteed. The utility model discloses structure simple process.

On the other hand, the embodiment of the utility model provides a still provides a vehicle, and it includes suspension swing arm and foretell bush structure, be equipped with the mounting hole on the suspension swing arm, the bush structure is in through interference fit pressure equipment in the mounting hole.

Optionally, the bushing structure is fixed to the body of the vehicle by bolts passing through the inner tube.

Drawings

Fig. 1 is a schematic view of a bushing structure according to an embodiment of the present invention.

The reference numerals in the specification are as follows:

1. an inner tube; 11. a recess; 2. rubber; 21. thickening the portion; 3. an outer tube.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, an embodiment of the present invention provides a bushing structure, which includes an inner tube 1, an outer tube 3, and rubber 2; the outer wall of the inner pipe 1 is provided with at least one concave part 11; a thickened part 21 matched with the concave part 11 is arranged on the rubber 2; the rubber 2 is connected between the outer wall of the inner tube 1 and the inner wall of the outer tube 3, the thickening 21 being located in the recess 11. Understandably, the inner tube 1 and the outer tube 3 are made of metal (including but not limited to steel or aluminum), the outer wall of the inner tube 1 may be provided with one concave portion 11, or may be provided with a plurality of concave portions 11, as long as the rigidity performance of the bushing structure, the service life of the rubber 2 in the bushing structure, the thickness space requirement of the rubber 2, and the like can be simultaneously satisfied under the condition that the connection strength of the inner tube 1 of the bushing structure and the space arrangement requirement of the outer tube 3 are ensured. Further, the inner tube 1, the outer tube 3 and the rubber 2 of the bushing structure are bonded through a vulcanization process. Understandably, the shape of the concave portion 11 may be determined according to the setting, for example, the concave portion 11 may be an annular groove, may also be one arc-shaped groove or a plurality of arc-shaped grooves which are annularly arranged around the inner tube 1 but are not continuous, may also be grooves (such as semicircular grooves) of other shapes which are arranged on the inner tube 1 according to a certain rule, and the like; understandably, the shape of the thickened portion 21 is correspondingly arranged according to the shape of the concave portion 11.

According to the bushing structure of the embodiment of the utility model, the outer wall of the inner pipe 1 is provided with at least one concave part 11; a thickened part 21 matched with the concave part 11 is arranged on the rubber 2; after the rubber 2 is connected between the outer wall of the inner tube 1 and the inner wall of the outer tube 3, the thickened portion 21 is located in the recess 11. The utility model discloses a convex surface of thickening portion 21 is connected with the concave surface laminating of concave part 11, has increased the deformation space of rubber 2 and the bonding area between rubber 2 and inner tube 1, after having guaranteed that the thickness of rubber 2 can satisfy the requirement that absorbs the impact that the uneven road surface transmitted and improve the vehicle ride comfort, can also satisfy the joint strength between rubber 2 and inner tube 1, make rubber 2 difficult deformation extrusion when the motion, also promoted its durable life simultaneously; moreover, under the condition that the lining structure has the same thickness, the thickness of the rubber 2 at the positions except the thickened part 21 on the rubber 2 does not need to be increased, and the thickness of the corresponding inner tube 1 (the positions of the inner tubes 1 corresponding to the rubbers at the positions except the thickened part 21) can be thickened, so that on one hand, the total rubber material used by the rubber 2 is reduced, the cost of the lining structure is saved under the condition that the volume and the weight of the lining structure are not increased, on the other hand, the rigidity performance of the lining structure can also be met, and the connection reliability of the lining structure is ensured. The utility model discloses structure simple process.

In one embodiment, as shown in fig. 1, the recess 11 is an annular groove provided on the outer wall of the inner tube 1. That is, in the present embodiment, the recess 11 is an annular groove provided around the inner pipe, correspondingly, the thickened portion is also an annular projection fitted to the annular groove, and after the rubber 2 is attached between the outer wall of the inner pipe 1 and the inner wall of the outer pipe 3, the thickened portion 21 (annular projection) is fitted into the recess 11 (annular groove) and attached to each other. Further, a plurality of annular grooves may be disposed on the outer wall of the inner tube 1 at parallel intervals (including being disposed at equal intervals), and the groove depths of the plurality of annular grooves may be uniform or non-uniform. The recessed shape of the annular groove may be set according to the requirement, and is not limited to the groove with the arc-shaped cross section shown in fig. 1, for example, the recessed shape may also be set to a groove with a square or other irregular cross section, and at this time, the shape of the thickened portion 21 also needs to be correspondingly set according to the shape of the annular groove.

In one embodiment, as shown in fig. 1, the central axis of the annular groove coincides with the central axis of the inner tube 1 and the central axis of the outer tube 3. In addition, the groove depth of the annular groove at any position around the inner pipe 1 is equal. Understandably, the groove depth of the annular groove can be set according to requirements, preferably, the groove depth of the annular groove is 1.5mm, and at the moment, the thickest thickness of the thickened part is also set to be 1.5mm correspondingly.

Understandably, the wall thickness of the outer pipe 3 and the wall thickness of the inner pipe 1 can be set according to requirements; preferably, the wall thickness of the outer tube 3 is 1-2 mm. Further, the wall thickness of the inner tube 1 at the position other than the position corresponding to the recess 11 is 5 to 6mm, and the wall thickness of the position corresponding to the recess 11 on the inner tube 1 needs to be reduced by the groove depth.

In one embodiment, the thickness of the rubber 2 is greater than 5mm, so that the thickness of the rubber 2 can be ensured to meet the requirements of connection strength and durable service life after the requirements of absorbing impact transmitted from uneven road surfaces and improving vehicle smoothness are met. It is understood that the thickness of the rubber 2 can be set to values other than greater than 5 mm.

Preferably, the inner diameter of the inner tube 1 is larger than 14mm, and the outer diameter of the outer tube 3 is smaller than 40 mm. So, can guarantee that the size of the external diameter size of outer tube 3 satisfies the whole car space arrangement requirement of vehicle for the bush structure does not produce with peripheral part and interferes, has guaranteed sufficient movement gap. And the inner diameter 1 of the inner pipe 1 can meet the assembly requirement (the bushing structure is fixed on the body of the vehicle by a bolt penetrating through the inner pipe 1, and the bolt is preferably an M12 or M14 bolt).

On the other hand, the embodiment of the utility model provides a vehicle is still provided, it includes suspension swing arm (not shown) and foretell bush structure, be equipped with mounting hole (not shown) on the suspension swing arm, bush structure is in through interference fit pressure equipment in the mounting hole. Understandably, the bush structure is pressed into the suspension swing arm through interference fit, the bush structure can be arranged towards any direction, the bearing capacity and the moment of the bush structure along the design position of the suspension swing arm can be realized, and the interference fit can ensure that the bush structure is stably connected with the suspension swing arm.

In one embodiment, the bushing structure is fixed to the body of the vehicle by bolts (not shown) passing through the inner tube 1, so that the suspension arm is fixedly mounted to the body of the vehicle by the bushing structure.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A bushing structure is characterized by comprising an inner pipe, an outer pipe and rubber; the outer wall of the inner pipe is provided with at least one concave part; the rubber is provided with a thickening part matched with the concave part; the rubber is connected between an outer wall of the inner tube and an inner wall of the outer tube, the thickened portion being located in the recess.

2. A liner structure in accordance with claim 1 wherein the recess is an annular groove provided on an outer wall of the inner tube.

3. A liner structure in accordance with claim 2 wherein a central axis of said annular groove coincides with a central axis of said inner tube and a central axis of said outer tube.

4. A lining structure according to claim 3, wherein the groove depth of the annular groove is 1.5 mm.

5. A lining construction according to claim 1, wherein the outer tube has a wall thickness of 1-2 mm.

6. A lining structure according to claim 1, wherein the wall thickness of the inner tube at locations other than the location corresponding to the recess is 5-6 mm.

7. A bushing arrangement according to claim 1, characterized in that the thickness of the rubber is more than 5 mm.

8. A liner structure in accordance with claim 1 wherein the inner diameter of the inner tube is greater than 14mm and the outer diameter of the outer tube is less than 40 mm.

9. A vehicle comprising a swing arm and a bushing arrangement according to any of claims 1 to 8, said swing arm having mounting holes therein, said bushing arrangement being press-fitted into said mounting holes by interference fit.

10. The vehicle of claim 9, characterized in that the bushing structure is secured to the body of the vehicle by bolts passing through the inner tube.

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