CN209925486U

CN209925486U - Spring pad structure, suspension and vehicle

Info

Publication number: CN209925486U
Application number: CN201920548295.4U
Authority: CN
Inventors: 鲍长勇
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2020-01-10
Anticipated expiration: 2029-04-22

Abstract

The utility model provides a spring pad structure, which comprises a spring pad made of an elastomer, wherein the spring pad is of an annular structure, and the inner side surface of the spring pad is used for being matched with a tray of a vehicle body; the upper end face of the spring pad is provided with a groove extending along the circumferential direction, and the groove is used for accommodating the last coil of the spiral spring; the starting end of the groove is provided with a bulge part used for blocking the tail end of the spiral spring in the circumferential direction; the spring pad is characterized in that a metal framework is arranged in the spring pad along the circumferential direction, a flanging extending upwards is arranged on the metal framework and located in the protruding portion, and the flanging is used for extruding the protruding portion at the tail end of the spiral spring to play a supporting role and prevent the area near the protruding portion from generating overlarge deformation. The utility model also provides a suspension and vehicle.

Description

Spring pad structure, suspension and vehicle

Technical Field

The utility model relates to an automotive suspension, concretely relates to spring pad structure, suspension and vehicle.

Background

The main body of the spring pad structure for the current automobile suspension is a spring pad 10a, and the spring pad 10a mainly adopts rubber and is internally provided with a metal framework 11a to prevent the circumferential deformation of the spring pad 10a in the stress process of the spring 2 a. However, the stopper structure 12a for stopping the end of the spring 2a and the vicinity thereof in the spring pad 10a are likely to be deformed excessively by the pressing action of the end of the spring 2 a. When the automobile runs under bad road conditions, the limit structure 12a has the risk of being extruded and deformed or even being damaged. As shown in FIG. 1, the spring 2a and the spring pad 10a are pressed tightly by force, and the end of the spring 2a is attached to the limit structure 12 a. Although the metal frame 11a disposed inside can support the spring pad 10a to a certain extent, since the metal frame 11a is disposed only in the circumferential direction, it is impossible to prevent the end of the spring 2a from pressing the limiting structure 12a and the adjacent area to generate excessive deformation.

Patent document CN 208107034U discloses a spring washer, a suspension, and a vehicle, the spring washer connecting a vehicle body tray and a coil spring. The spring washer is of an annular structure and is provided with an inner side face and an outer side face, the inner side face is a conical face, the conical face is matched with the automobile body tray, a groove is formed between the inner side face and the outer side face of the annular structure, the groove is of an arc-shaped structure matched with a coil spring coil, and the groove is provided with a lift range structure matched with the coil spring end ring. The inner side edge of the groove is provided with an arc-shaped limiting block for fixing the spiral spring during assembly, so that the spiral spring is not easy to fall off. The arc-shaped structure of the groove can limit the relative lateral movement of the spiral spring, so that the spiral spring is not easy to make abnormal sound. The lift structure can enable the spiral spring to be stressed uniformly and not to be cracked easily.

Patent document CN 206426794U discloses a spring pad, a suspension and a vehicle, the spring pad includes a spring pad body, the spring pad body includes an inner ring and an outer ring which extend along an axial direction and are arranged along a radial interval, and a bottom portion which connects the inner ring and the outer ring with the same side, an interval between the inner ring and the outer ring and the bottom portion enclose a mounting groove for accommodating a spring end ring together, and a flow guide hole for discharging accumulated water is formed in the mounting groove.

None of the above patent documents relates to preventing excessive pressing deformation at the contact portion between the coil spring and the spring pad.

Disclosure of Invention

The utility model aims at providing a spring pad structure to be used for preventing the spring pad from producing too big deformation when being extrudeed by coil spring end.

The utility model discloses a spring pad structure, which comprises a spring pad made of an elastomer, wherein the spring pad is of an annular structure, and the inner side surface of the spring pad is used for being matched with a tray of a vehicle body; the upper end face of the spring pad is provided with a groove extending along the circumferential direction, and the groove is used for accommodating the last coil of the spiral spring;

the starting end of the groove is provided with a bulge part used for blocking the tail end of the spiral spring in the circumferential direction;

the spring pad is characterized in that a metal framework is arranged in the spring pad along the circumferential direction, a flanging extending upwards is arranged on the metal framework and located in the protruding portion, and the flanging is used for supporting when the protruding portion is extruded at the tail end of the spiral spring.

Further, the metal framework is annular.

Furthermore, the protruding part is provided with a blocking surface used for contacting with the tail end of the spiral spring, and the flanging is arranged in parallel with the blocking surface.

Further, a reinforcing structure is arranged on the turned edge.

Further, the reinforcing structure is a reinforcing plate or a bent structure.

Furthermore, a limiting structure is arranged on the groove.

Further, the limiting structure is an arc-shaped stop block.

Further, the spring pad is made of rubber.

The utility model also provides a suspension, including lower swing arm and coil spring lower swing arm with be equipped with above-mentioned spring pad structure between the coil spring.

The utility model also provides a vehicle, including above-mentioned suspension.

The utility model has the advantages that:

because the metal framework is arranged in the spring pad along the circumferential direction, the metal framework is provided with the flanging which extends upwards, the flanging is positioned in the bulge, and the flanging can play a supporting role when the bulge is extruded by the tail end of the spiral spring, so that the bulge and the nearby area are prevented from generating overlarge deformation.

Drawings

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic sectional view A-A of FIG. 2;

FIG. 4 is a schematic cross-sectional view B-B of FIG. 3;

fig. 5 is an assembly diagram of the present invention.

In the figure:

10-spring cushion, 11-metal framework, 12-lug boss and 13-flanging;

2-helical spring.

Detailed Description

The technical solution is further explained below with reference to the detailed description and the accompanying drawings.

Referring to fig. 2 to 5, a trampoline structure includes a trampoline 10 made of an elastic body. Preferably, the spring pad 10 is made of rubber.

The spring pad 10 is of an annular structure, and the inner side surface of the spring pad 10 is a conical surface and is used for being matched with a vehicle body tray to limit the vehicle body tray, so that the vehicle body tray is not easy to move.

The upper end face of the spring pad 10 is provided with a groove extending in the circumferential direction, the groove being used for accommodating the last turn of the coil spring 2.

Preferably, the cross-section of the groove is arc-shaped, which is easily adapted to the coil spring 2.

The starting end of the groove is provided with a projection 12 for blocking the end of the last turn of the coil spring 2 in the circumferential direction.

The spring pad 10 is internally provided with a metal framework 11 along the circumferential direction, the metal framework 11 is provided with a flanging 13 extending upwards, and the flanging 13 is positioned in the boss 12 and used for extruding the tail end of the spiral spring 2 to play a supporting role in the process of extruding the boss 12 so as to prevent the boss 12 and nearby areas from generating overlarge deformation.

Specifically, the metal skeleton 11 is annular.

Specifically, the protruding portion 12 is provided with a blocking surface for contacting with the tail end of the coil spring 2, and the flanging 13 is arranged in parallel with the blocking surface, so that the flanging 13 is prevented from contacting and interfering with the protruding portion 12. The distance of the parallel arrangement may be dependent on the use case, for example the distance is set to 1-2 mm.

And a reinforcing structure is arranged on the flanging 13, and the reinforcing structure is a reinforcing plate or a bending structure.

And the groove is provided with a limiting structure for preventing the spiral spring 2 from falling off from the spring pad 10.

Specifically, the limiting structure is an arc-shaped stop block, and the radian of the arc-shaped stop block is smoothly connected with the radian of the inner side of the groove;

specifically, the arc-shaped stop blocks are at least two and are spaced at a certain distance from each other, so that the coil spring 2 can be well fixed, and the coil spring 2 is not prone to lateral movement.

The utility model also provides a suspension, including lower swing arm and coil spring 2 lower swing arm with be equipped with above-mentioned spring pad structure between the coil spring 2.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and substitutions can be made without departing from the principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A spring pad structure is characterized in that:

the automobile spring pad comprises a spring pad (10) made of an elastic body, wherein the spring pad (10) is of an annular structure, and the inner side surface of the spring pad (10) is used for being matched with an automobile body tray; the upper end face of the spring pad (10) is provided with a groove extending along the circumferential direction, and the groove is used for accommodating the last coil of the spiral spring (2);

the starting end of the groove is provided with a bulge (12) used for blocking the tail end of the spiral spring (2) in the circumferential direction;

be equipped with metal framework (11) along circumference in spring pad (10), be equipped with turn-ups (13) that upwards extend on metal framework (11), turn-ups (13) are located in bellying (12), turn-ups (13) are used for terminal extrusion at coil spring (2) play the supporting role during bellying (12).

2. Trampoline structure according to claim 1, characterized in that said metal skeleton (11) is circular.

3. Trampoline structure according to claim 1, characterized in that said protrusions (12) have stop surfaces for contact with the ends of the coil springs (2), said turned edges (13) being arranged parallel to said stop surfaces.

4. Trampoline structure according to claim 1, characterized in that a reinforcement structure is provided on said flanges (13).

5. The trampoline structure of claim 4, wherein the reinforcement structure is a reinforcement plate or a bent structure.

6. The trampoline structure of claim 1, wherein the groove has a limit structure thereon.

7. The trampoline structure of claim 6, wherein the limit structure is an arc-shaped stop.

8. Trampoline structure according to claim 1, characterized in that said trampoline (10) is made of rubber.

9. Suspension comprising a lower swing arm and a helical spring (2), characterized in that a spring pad structure according to any of claims 1 to 8 is provided between the lower swing arm and the helical spring (2).

10. A vehicle comprising a suspension according to claim 9.