Spiral spring adjusting device of automobile shock absorber

Abstract

The utility model discloses a spiral spring adjusting device of an automobile shock absorber, which comprises a spring supporting cylinder, step teeth are arranged at the top end of the spring supporting cylinder, a positioning hole is arranged on the bottom surface of the spring supporting cylinder, a side hole is arranged at the top of the outer side surface of a supporting seat, and a locking bolt is arranged in the side hole. The locking bolt penetrates through the horizontal hole, the horizontal hole is formed in the middle of the side face of the spring supporting barrel, the tail end of the locking bolt is connected with the locking hole, the locking hole is formed in the top of the inner side face of the mounting groove, the backing ring is fixed to the bottom end of the supporting seat, and oil cylinder mounting holes are formed in the center of the supporting seat and the center of the backing ring. According to the spiral spring adjusting device of the automobile shock absorber, the novel structural design is adopted, abrasion of the stepped teeth is relieved through the abrasion-resistant coatings, meanwhile, the split type structure is adopted, the top structure provided with the stepped teeth can be conveniently replaced and stably positioned and installed, resources are saved, and meanwhile stable use of the whole device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a spiral spring adjusting device for an automobile shock absorber. Background Technique

[0002] The shock absorber adopted by the MacPherson suspension mainly consists of a spring and a hydraulic cylinder. A spring is sleeved outside the hydraulic cylinder. In order to facilitate the adjustment of the spring force, the bottom end of the spring is engaged with the stepped teeth on the top of the adjusting seat. The stepped teeth are inclined. When the spring is engaged with different stepped tooth grooves, the compression degree is different, and the elastic force provided during shock absorption is different.

[0003] The structure of the existing adjusting seat for the spiral spring of the shock absorber is simple, only a hollow cylindrical structure. During the continuous driving of the automobile, the spring works continuously, and the wear between the bottom end and the stepped teeth is relatively large. After the stepped teeth are worn to a certain extent, the whole needs to be replaced, which is easy to cause waste of resources. Aiming at the above problems, it is urgent to innovate and design on the basis of the original spiral spring adjusting device of the automobile shock absorber. Content of the Utility Model

[0004] The purpose of the utility model is to provide a spiral spring adjusting device for an automobile shock absorber, so as to solve the problems in the above background technique that the structure of the existing adjusting seat for the spiral spring of the shock absorber is simple, only a hollow cylindrical structure. During the continuous driving of the automobile, the spring works continuously, and the wear between the bottom end and the stepped teeth is relatively large. After the stepped teeth are worn to a certain extent, the whole needs to be replaced, which is easy to cause waste of resources.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a spiral spring adjusting device for an automobile shock absorber, including a spring support cylinder, a stepped tooth is arranged at the top end of the spring support cylinder, a wear-resistant coating is arranged on the top surface of the stepped tooth, the bottom of the spring support cylinder is attached to the inner wall of the installation groove, the installation groove is opened at the top of the support seat, a positioning plate is fixedly installed on one side of the inner wall of the installation groove, the positioning plate is attached to the inner wall of the positioning window, the positioning window is vertically opened at the bottom of the spring support cylinder, a positioning column is fixedly installed on the inner bottom surface of the installation groove, the positioning column is attached to the inner wall of the positioning hole, the positioning hole is opened on the bottom surface of the spring support cylinder, a side hole is opened at the top of the outer side surface of the support seat, a locking bolt is installed in the side hole, the locking bolt penetrates through the horizontal hole, the horizontal hole is opened in the middle of the side surface of the spring support cylinder, the end of the locking bolt is connected to the locking hole, the locking hole is opened at the top of the inner side surface of the installation groove, a cushion ring is fixed at the bottom end of the support seat, and oil cylinder installation holes are opened at the centers of the support seat and the cushion ring.

[0006] Preferably, the front view shape of the support seat is "丄" shaped, and the thickness of the top of the support seat is more than twice the thickness of the spring support cylinder.

[0007] Preferably, the positioning plate and the positioning window are snap-fitted and connected, and the positioning plate and the positioning window are symmetrically distributed about the center of the spring support tube.

[0008] Preferably, the positioning column and the positioning hole are distributed at equal angles with respect to the center of the spring support tube and the center of the support seat, respectively, and the positioning hole and the positioning window are distributed at intervals.

[0009] Preferably, the locking bolt is threadedly connected to the horizontal hole and the locking hole, and the horizontal hole and the locking hole are distributed at equal angles with respect to the center of the support seat.

[0010] Preferably, the thickness of the gasket ring is not less than 1 / 3 of the thickness of the bottom of the support seat, and the bottom surface of the gasket ring is set to be a matte surface.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the spiral spring adjustment device of the automobile shock absorber adopts a new structural design, reduces the wear of the step teeth through the wear-resistant coating, and adopts a split structure, so that the top structure provided with the step teeth can be easily replaced and stably positioned and installed, saving resources while ensuring the stable use of the device as a whole;

[0012] 1. The wear-resistant coating on the top surface of the step teeth reduces the wear rate of the step teeth at the top of the spring support tube. At the same time, through the split design of the spring support tube and the support seat, when the step teeth are excessively worn, only the spring support tube needs to be replaced. The gasket made of wear-resistant material at the bottom ensures that the device as a whole can work stably for a long time.

[0013] 2. Position the spring support tube through the installation groove, cooperate with the positioning plate and positioning window as well as the positioning column and positioning hole to ensure that the spring support tube will not rotate in the installation groove. At the same time, the side holes, locking bolts, horizontal holes and locking holes distributed at equal angles are coordinated to ensure the stable connection and fixation of the spring support tube and the support seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the front view structure of the spring support tube of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the spring support tube of the utility model when viewed from above;

[0018] Figure 5 It is a schematic diagram of the top view structure of the support seat of the utility model.

[0019] In the figure: 1. Spring support cylinder; 2. Step tooth; 3. Installation groove; 4. Support seat; 5. Positioning plate; 6. Positioning window; 7. Positioning column; 8. Positioning hole; 9. Side hole; 10. Locking bolt; 11. Horizontal hole; 12. Locking hole; 13. Pad ring; 14. Oil cylinder installation hole; 15. Wear-resistant coating. Detailed implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figure 1-5 , the present invention provides a technical solution: a spiral spring adjusting device for an automobile shock absorber, including a spring support cylinder 1, a step tooth 2, an installation groove 3, a support seat 4, a positioning plate 5, a positioning window 6, a positioning column 7, a positioning hole 8, a side hole 9, a locking bolt 10, a horizontal hole 11, a locking hole 12, a pad ring 13, an oil cylinder installation hole 14 and a wear-resistant coating 15. A step tooth 2 is provided at the top end of the spring support cylinder 1, and a wear-resistant coating 15 is provided on the top surface of the step tooth 2. The bottom of the spring support cylinder 1 is attached to the inner wall of the installation groove 3. The installation groove 3 is opened at the top of the support seat 4. A positioning plate 5 is fixedly installed on one side of the inner wall of the installation groove 3. The positioning plate 5 is attached to the inner wall of the positioning window 6. The positioning window 6 is vertically opened at the bottom of the spring support cylinder 1. A positioning column 7 is fixedly installed on the inner bottom surface of the installation groove 3. The positioning column 7 is attached to the inner wall of the positioning hole 8. The positioning hole 8 is opened on the bottom surface of the spring support cylinder 1. A side hole 9 is opened at the top of the outer side surface of the support seat 4. A locking bolt 10 is installed in the side hole 9. The locking bolt 10 penetrates through the horizontal hole 11. The horizontal hole 11 is opened in the middle of the side surface of the spring support cylinder 1. The end of the locking bolt 10 is connected to the locking hole 12. The locking hole 12 is opened at the top of the inner side surface of the installation groove 3. A pad ring 13 is fixed at the bottom end of the support seat 4. Oil cylinder installation holes 14 are opened at the centers of the support seat 4 and the pad ring 13.

[0022] In this example, the front view shape of the support seat 4 is a "丄" shape, and the thickness of the top of the support seat 4 is more than twice the thickness of the spring support cylinder 1. The above structural design enables the support seat 4 to stably support the spring support cylinder 1 and provides a stable installation foundation for the spring support cylinder 1.

[0023] The positioning plate 5 and the positioning window 6 are in snap-fit connection, and both the positioning plate 5 and the positioning window 6 are symmetrically distributed about the center of the spring support cylinder 1. The above structural design enables the positioning plate 5 and the positioning window 6 to be aligned and snap-fitted, and can prevent the spring support cylinder 1 from rotating in the installation groove 3.

[0024] The positioning column 7 and the positioning hole 8 are distributed at equal angles with respect to the center of the spring support tube 1 and the center of the support seat 4 respectively. The positioning hole 8 and the positioning window 6 are distributed at intervals. After the positioning column 7 and the positioning hole 8 are connected, they cooperate with the positioning plate 5 and the positioning window 6 to further ensure the stability of the spring support tube 1 during use.

[0025] The locking bolt 10 is threadedly connected to the horizontal hole 11 and the locking hole 12. The horizontal hole 11 and the locking hole 12 are distributed at equal angles about the center of the support seat 4. The above-mentioned structural design can connect and fix the spring support tube 1 and the support seat 4 to ensure the stability of the spring support tube 1 and the support seat 4 during use.

[0026] The thickness of the gasket ring 13 is not less than 1 / 3 of the thickness of the bottom of the support seat 4, and the bottom surface of the gasket ring 13 is set to be matte. The above structural design enables the gasket ring 13 made of wear-resistant material to be in stable contact with the bottom mounting structure, ensuring the stable use of the spring support tube 1 and the support seat 4.

[0027] Working principle: During installation, align the positioning window 6 and positioning hole 8 at the bottom of the spring support tube 1 with the positioning plate 5 and positioning column 7 in the installation groove 3 respectively, insert the spring support tube 1 vertically into the installation groove 3, and then insert the locking bolt 10 through the side hole 9 and threadedly connect and fix it with the horizontal hole 11 and the locking hole 12. The device is sleeved on the outside of the hydraulic cylinder of the automobile shock absorber, and the wear-resistant coating 15 on the stepped teeth 2 is stably fitted with the bottom of the spring, and the gasket 13 is stably fitted with the mounting mechanism at the bottom of the shock absorber;

[0028] When the wear-resistant coating 15 is worn and the stepped teeth 2 are damaged, it is only necessary to remove the locking bolt 10, move up and pull out the old spring support tube 1, take out the new spring support tube 1, and install and fix the new spring support tube 1 according to the installation steps described above. This is the working principle of the coil spring adjustment device of the automobile shock absorber.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coil spring adjustment device for an automobile shock absorber, comprising a spring support cylinder (1), characterized in that: A stepped tooth (2) is provided at the top of the spring support cylinder (1), a wear-resistant coating (15) is provided on the top surface of the stepped tooth (2), the bottom of the spring support cylinder (1) is in contact with the inner wall of the installation groove (3), the installation groove (3) is opened at the top of the support seat (4), a positioning plate (5) is fixedly installed on one side of the inner wall of the installation groove (3), the positioning plate (5) is in contact with the inner wall of the positioning window (6), the positioning window (6) is vertically opened at the bottom of the spring support cylinder (1), a positioning column (7) is fixedly installed on the inner bottom surface of the installation groove (3), the positioning column (7) is in contact with the inner wall of the positioning hole (8), the positioning hole (8) is opened on the bottom surface of the spring support cylinder (1), a side hole (9) is opened at the top of the outer side surface of the support seat (4), a locking bolt (10) is installed in the side hole (9), the locking bolt (10) penetrates through the horizontal hole (11), the horizontal hole (11) is opened in the middle of the side surface of the spring support cylinder (1), the end of the locking bolt (10) is connected to the locking hole (12), the locking hole (12) is opened at the top of the inner side surface of the installation groove (3), a cushion ring (13) is fixed at the bottom end of the support seat (4), and oil cylinder installation holes (14) are opened at the centers of the support seat (4) and the cushion ring (13).

2. The coil spring adjusting device for an automobile shock absorber according to claim 1, characterized in that: The front view shape of the support seat (4) is "丄"-shaped, and the thickness of the top of the support seat (4) is more than twice the thickness of the spring support cylinder (1).

3. The coil spring adjusting device for an automobile shock absorber according to claim 1, characterized in that: The positioning plate (5) and the positioning window (6) are in snap-fit connection, and the positioning plate (5) and the positioning window (6) are both symmetrically distributed about the center of the spring support cylinder (1).

4. The coil spring adjusting device for an automobile shock absorber according to claim 1, characterized in that: The positioning column (7) and the positioning hole (8) are respectively equally angularly distributed about the center of the spring support cylinder (1) and the center of the support seat (4), and the positioning holes (8) are spaced apart from the positioning window (6).

5. The coil spring adjusting device for an automobile shock absorber according to claim 1, characterized in that: The locking bolt (10) is in threaded connection with both the horizontal hole (11) and the locking hole (12), and the horizontal hole (11) and the locking hole (12) are both equally angularly distributed about the center of the support seat (4).

6. The coil spring adjusting device for an automobile shock absorber according to claim 1, characterized in that: The thickness of the cushion ring (13) is not less than 1 / 3 of the bottom thickness of the support seat (4), and the bottom surface of the cushion ring (13) is set to be matte.

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