An integrated device combining a stiffness-adjustable spring and damping.

Abstract

This utility model provides an integrated device combining a stiffness-adjustable spring and damper, relating to the field of shock absorber technology. It includes: a damper; a spring mounted on the outside of the damper; a lower support plate fixed to the bottom of the damper; and a stiffness adjustment ring also mounted on the outside of the damper; an upper hanging ring fixed to the top of the damper; and a lower hanging ring fixed to the bottom of the lower support plate; a bearing mounted inside both the upper and lower hanging rings; a bearing sealing cover mounted at the front and rear of each bearing; and a maintenance baffle rotatably mounted on the bearing sealing cover at the front of each bearing. This device allows for adjustment of the overall stiffness of the shock absorber, ensuring effective damping in different application scenarios. Furthermore, lubricating oil can be added to the bearings, eliminating the need for bearing disassembly and replacement when the lubricating oil level decreases, thus simplifying future maintenance.

Description

Technical Field

[0001] This utility model relates to the field of shock absorber technology, and in particular to an integrated device that combines a spring and damping with adjustable stiffness. Background Technology

[0002] The integrated spring and damping device is a vibration reduction system that combines elastic elements and energy-dissipating elements into a single unit in a mechanical structure. It has the functions of support, reset and energy dissipation, and is widely used in vehicle suspension, building vibration isolation, precision equipment and other fields. For example, the shock absorber on the vehicle suspension uses a combination of damper and spring.

[0003] Currently used shock absorbers typically have their lower spring seats welded to the shock absorber body. The shock absorber's damping stiffness is not adjustable, and the damping effect can be affected by excessive or insufficient suspension spring preload. Furthermore, many shock absorbers have bearings in their suspension rings, but the lubricating oil in these bearings tends to decrease after prolonged use. It is difficult to add lubricating oil to the bearings on the shock absorber, so the bearings must be disassembled and replaced, making subsequent maintenance quite laborious. Summary of the Invention

[0004] This utility model provides an integrated device that combines a spring and damping with adjustable stiffness. It can adjust the overall stiffness of the shock absorber to ensure the shock absorption effect in different usage scenarios. Moreover, the bearing can be lubricated with oil, and there is no need to disassemble and replace the bearing when the lubricating oil is reduced, making subsequent maintenance easier.

[0005] In a first aspect, this utility model provides an integrated device combining a stiffness-adjustable spring and damper, specifically comprising: a damper; a spring mounted on the outside of the damper, a lower support plate fixed to the bottom of the damper, and a stiffness adjustment ring also mounted on the outside of the damper; an upper hanging ring fixed to the top of the damper, and a lower hanging ring fixed to the bottom of the lower support plate; a bearing mounted on the inner side of both the upper and lower hanging rings, a bearing sealing cover mounted at the front and rear of the bearing, and a maintenance baffle rotatably mounted on the bearing sealing cover at the front of the bearing.

[0006] Each bearing has a circular groove on the bearing seal cover in front of it, and the maintenance baffle is a circular plate that can rotate in the circular groove on the bearing seal cover.

[0007] The upper part of the damper has threaded protrusions on the outer wall of the sleeve, and the stiffness adjustment ring also has corresponding threads in the middle of the circular hole.

[0008] The bearing sealing cover in front of the bearing has a circular hole that runs through it from front to back, and the maintenance baffle is provided with a circular hole on the rear side of the circular groove. After the maintenance baffle is rotated and adjusted, the circular hole on the maintenance baffle will be aligned with the circular hole on the bearing sealing cover.

[0009] The outer part of the stiffness adjustment ring is provided with several protrusions arranged in a ring. The bottom end of the spring is in close contact with the top surface of the lower support plate, and the top end of the spring is in close contact with the bottom surface of the stiffness adjustment ring.

[0010] The maintenance baffle has an annular protrusion around its edge, and the bearing seal cover has a corresponding annular groove inside its circular groove. The front of the maintenance baffle also has a plate-shaped protrusion, and the outer side of the maintenance baffle is covered with a layer of rubber.

[0011] The upper and lower lifting rings each have a circular opening on their front outer walls, and the maintenance baffles on the bearing sealing cover in front of the bearing are located directly behind the circular openings on the front outer walls of the upper and lower lifting rings.

[0012] This utility model provides an integrated device combining a spring and damping with adjustable stiffness, which has the following advantages: The stiffness adjustment ring in this invention can adjust the distance between itself and the lower support plate by rotation, thereby compressing or extending the spring and adjusting the overall stiffness of the shock absorber to ensure the shock absorption effect in different usage scenarios. The bearing seal cover is equipped with a rotatable maintenance baffle. When it is necessary to add lubricating oil to the bearing, the maintenance baffle can be rotated in the circular groove on the bearing seal cover until the circular hole on the maintenance baffle is aligned with the circular hole on the bearing seal cover. Then, lubricating oil can be added to the bearing through these two circular holes. The bearing can be lubricated by adding lubricating oil to the shock absorber. When the lubricating oil is reduced, there is no need to disassemble and replace the bearing, making subsequent maintenance easier. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0014] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0015] In the attached diagram: Figure 1 A schematic diagram of the overall structure of this application from the main axis side is shown; Figure 2 A schematic diagram of the main shaft side of the damper in this application is shown; Figure 3 A schematic diagram of the stiffness adjustment ring in this application is shown; Figure 4 This invention provides a schematic diagram of the structure of the upper lifting ring after partial cross-section. Figure 5 This invention provides a schematic diagram of the bearing seal cover after partial cross-section. Figure 6This paper shows a schematic diagram of the structure of the maintenance baffle after partial cross-section in this application; List of reference numerals 1. Damper; 2. Spring; 3. Lower support plate; 4. Stiffness adjustment ring; 5. Upper lifting ring; 6. Lower lifting ring; 7. Bearing; 8. Bearing seal cover; 9. Maintenance baffle. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Example 1: Please refer to Figures 1 to 6 : This invention proposes an integrated device combining a stiffness-adjustable spring and damper, comprising: a damper 1; a spring 2 mounted on the outer side of the damper 1; a lower support plate 3 fixed to the bottom end of the damper 1; and a stiffness adjustment ring 4 mounted on the outer side of the damper 1. During use, the damper 1 and spring 2 can elastically expand and contract, thereby achieving shock absorption. Furthermore, after installation, the stiffness adjustment ring 4 can be rotated on the outer side of the sleeve in the upper part of the damper 1. When the stiffness adjustment ring 4 rotates, it moves up and down on the outer side of the sleeve in the upper part of the damper 1 due to the threaded engagement, thereby changing the distance between the stiffness adjustment ring 4 and the lower support plate 3, causing the spring 2 to compress or extend. This allows for adjustment of the overall stiffness of the shock absorber. An upper hanging ring 5 is fixed to the top of the damper 1, and a lower hanging ring 6 is fixed to the bottom of the lower support plate 3. During installation, the device can be fixed through the round hole between the upper hanging ring 5 and the lower hanging ring 6. A bearing 7 is installed inside both the upper hanging ring 5 and the lower hanging ring 6. A bearing sealing cover 8 is installed at the front and rear of each bearing 7, and a maintenance baffle 9 is rotatably installed on the bearing sealing cover 8 in front of the bearing 7. The bearing 7 is used to reduce the friction at the installation positions of the upper hanging ring 5 and the lower hanging ring 6. The bearing sealing cover 8 is used to seal the front and rear sides of the bearing 7, and the maintenance baffle 9 is used to seal the lubricating oil filling hole on the bearing sealing cover 8.

[0018] In this embodiment, as Figure 5 and Figure 6As shown, each bearing 7 has a circular groove on the bearing seal cover 8 in front of it. The maintenance baffle 9 is a circular plate that can rotate in the circular groove on the bearing seal cover 8. When adding lubricating oil to the bearing 7, pinch the plate-shaped protrusion on the front side of the maintenance baffle 9 and rotate it forcefully. This will cause the maintenance baffle 9 to rotate in the circular groove on the bearing seal cover 8 until the circular hole on the maintenance baffle 9 is aligned with the circular hole on the bearing seal cover 8. Then, lubricating oil can be added to the bearing 7 through these two circular holes. After the lubricating oil is added, rotate the maintenance baffle 9 180° to disengage the circular hole on the maintenance baffle 9 from the circular hole on the bearing seal cover 8, thus sealing the circular hole on the bearing seal cover 8.

[0019] In this embodiment, as Figures 1-3 As shown, the outer wall of the sleeve in the upper part of the damper 1 is provided with threaded protrusions, and the round hole in the middle of the stiffness adjustment ring 4 is also provided with corresponding threads. After installation, the stiffness adjustment ring 4 can be rotated on the outside of the sleeve in the upper part of the damper 1. When the stiffness adjustment ring 4 rotates, it will move up and down on the outside of the sleeve in the upper part of the damper 1 by means of the threaded engagement, thereby changing the distance between the stiffness adjustment ring 4 and the lower support plate 3 to compress or extend the spring 2, thereby adjusting the overall stiffness of the shock absorber.

[0020] In this embodiment, as Figures 4-6 As shown, a circular hole is provided on the rear side of the circular groove on the bearing seal cover 8 in front of the bearing 7 and on the maintenance baffle 9. After the maintenance baffle 9 is rotated and adjusted, the circular hole on the maintenance baffle 9 will be aligned with the circular hole on the bearing seal cover 8. When adding lubricating oil to the bearing 7, the plate-shaped protrusion on the front side of the maintenance baffle 9 can be pinched and rotated forcefully. This will cause the maintenance baffle 9 to rotate in the circular groove on the bearing seal cover 8 until the circular hole on the maintenance baffle 9 is aligned with the circular hole on the bearing seal cover 8. Then, lubricating oil can be added to the bearing 7 through these two circular holes.

[0021] In this embodiment, as Figure 1 and Figure 3 As shown, the outer part of the stiffness adjustment ring 4 is provided with several protrusions arranged in a ring. The bottom end of the spring 2 is in close contact with the top surface of the lower support plate 3, and the top end of the spring 2 is in close contact with the bottom surface of the stiffness adjustment ring 4. After installation, the stiffness adjustment ring 4 can be rotated on the outside of the sleeve in the upper part of the damper 1. When the stiffness adjustment ring 4 rotates, it will move up and down on the outside of the sleeve in the upper part of the damper 1 by means of the threaded engagement, thereby changing the distance between the stiffness adjustment ring 4 and the lower support plate 3 to compress or extend the spring 2, thereby adjusting the overall stiffness of the shock absorber. The protrusions on the outer side of the stiffness adjustment ring 4 make it easy to grip and rotate.

[0022] In this embodiment, as Figure 1 , Figure 2 and Figure 4As shown, a circular opening is provided on the front outer wall of both the upper lifting ring 5 and the lower lifting ring 6. The maintenance baffle 9 on the bearing seal cover 8 in front of the bearing 7 is located directly behind the circular openings on the front outer walls of the upper lifting ring 5 and the lower lifting ring 6. Therefore, lubricating oil can be added through the circular openings on the front outer walls of the upper lifting ring 5 and the lower lifting ring 6.

[0023] Example 2, based on Example 1, such as Figures 1-6 As shown, the edge of the maintenance baffle 9 is provided with a ring of protrusions, and the inner side of the circular groove on the bearing seal cover 8 is also provided with a corresponding ring groove. In addition, the front side of the maintenance baffle 9 is also provided with a plate-shaped protrusion. The outer side of the maintenance baffle 9 is also wrapped with a layer of rubber. When adding lubricating oil to the bearing 7, the plate-shaped protrusion on the front side of the maintenance baffle 9 can be pinched and rotated forcefully. The rubber wrapped on the outer side of the maintenance baffle 9 can enhance the sealing performance and prevent the lubricating oil in the bearing 7 from leaking out. At the same time, the rubber can also increase the friction and prevent the maintenance baffle 9 from loosening.

[0024] The working principle of this embodiment is as follows: During installation, the device can be fixed through the round hole between the upper lifting ring 5 and the lower lifting ring 6. During use, the damper 1 and the spring 2 can elastically expand and contract, thereby achieving a shock absorption effect. After installation, the stiffness adjustment ring 4 can be rotated on the outside of the sleeve in the upper part of the damper 1. When the stiffness adjustment ring 4 rotates, it will move up and down on the outside of the sleeve in the upper part of the damper 1 due to the threaded engagement, thereby changing the distance between the stiffness adjustment ring 4 and the lower support plate 3, causing the spring 2 to compress or extend, and thus adjusting the overall stiffness of the shock absorber. When it is necessary to add lubricating oil to the bearing 7, the front side of the maintenance baffle 9 can be pinched. The plate-shaped protrusion is rotated forcefully, which will cause the maintenance baffle 9 to rotate in the circular groove on the bearing seal cover 8 until the circular hole on the maintenance baffle 9 is aligned with the circular hole on the bearing seal cover 8. Then, lubricating oil can be added to the bearing 7 through these two circular holes. After the lubricating oil is added, the maintenance baffle 9 is rotated 180° to disengage the circular hole on the maintenance baffle 9 from the circular hole on the bearing seal cover 8. This seals the circular hole on the bearing seal cover 8. Moreover, the rubber wrapped around the outside of the maintenance baffle 9 can enhance the sealing performance and prevent the lubricating oil in the bearing 7 from leaking out. At the same time, the rubber can also increase the friction and prevent the maintenance baffle 9 from loosening.

[0025] The following points should be noted in this article: 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0026] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

Claims

1. A stiffness-adjustable spring and damping integrated device comprising: A damper (1); characterized in that: a spring (2) is installed on the outside of the damper (1), a lower support plate (3) is fixed at the bottom of the damper (1), and a stiffness adjustment ring (4) is also installed on the outside of the damper (1); an upper hanging ring (5) is fixed at the top of the damper (1), and a lower hanging ring (6) is fixed at the bottom of the lower support plate (3); a bearing (7) is installed on the inside of the upper hanging ring (5) and the lower hanging ring (6), a bearing sealing cover (8) is installed at the front and rear of the bearing (7), and a maintenance baffle (9) is rotatably installed on the bearing sealing cover (8) in front of the bearing (7).

2. A stiffness-adjustable spring and damping integrated device according to claim 1, wherein The upper part of the damper (1) has a threaded protrusion on the outer wall of the sleeve, and the stiffness adjustment ring (4) also has a corresponding thread in the middle of the round hole.

3. The stiffness-adjustable spring and damping integrated device according to claim 1, wherein The outer part of the stiffness adjustment ring (4) is provided with several protrusions arranged in a ring. The bottom end of the spring (2) is in close contact with the top surface of the lower support plate (3), and the top end of the spring (2) is in close contact with the bottom surface of the stiffness adjustment ring (4).

4. The integrated device for adjusting stiffness of spring and damping according to claim 1, characterized in that, Both the upper and lower rings (5) have a circular opening on their front outer walls, and the maintenance baffle (9) on the bearing seal cover (8) in front of the bearing (7) is located directly behind the circular opening on the front outer walls of the upper and lower rings (5) and the lower ring (6).

5. The integrated device for adjusting stiffness of spring and damping according to claim 1, characterized in that, Each bearing (7) has a circular groove on the bearing seal cover (8) in front of it. The maintenance baffle (9) is a circular plate and can rotate in the circular groove on the bearing seal cover (8).

6. The integrated device for adjusting stiffness of spring and damping according to claim 1, characterized in that, The bearing seal cover (8) in front of the bearing (7) has a circular hole that runs through the front and back. After the maintenance baffle (9) is rotated and adjusted, the circular hole on the maintenance baffle (9) will be aligned with the circular hole on the bearing seal cover (8).

7. The integrated device for adjusting stiffness of spring and damping according to claim 1, characterized in that, The edge of the maintenance baffle (9) is provided with a ring-shaped protrusion, the inner side of the circular groove on the bearing sealing cover (8) is also provided with a corresponding ring-shaped groove, and the front side of the maintenance baffle (9) is also provided with a plate-shaped protrusion, and the outer side of the maintenance baffle (9) is also wrapped with a layer of rubber.

Images