Rail transit rubber shock absorber with multi-layer composite structure

Abstract

The utility model discloses a rail transit rubber shock absorber with a multilayer composite structure, which relates to the technical field of rubber shock absorbers and comprises a mounting base and a shock absorption component, threaded grooves are formed in four sides in the mounting base, mounting bolts are connected in the threaded grooves, the shock absorption component is arranged in the middle of the upper end of the mounting base, and the shock absorption component is arranged in the middle of the lower end of the mounting base. The damping assembly comprises a rubber damper body, a threaded mounting groove, a carbon black layer, a metal steel plate, a white carbon black layer and a styrene butadiene rubber layer, the threaded mounting groove is formed in the middle of the upper end of the rubber damper body, the carbon black layer is arranged at the lower end in the rubber damper body, and the metal steel plate is arranged above the carbon black layer; and a white carbon black layer is arranged at the upper end of the metal steel plate. According to the rail transit rubber shock absorber with the multi-layer composite structure, the use wear resistance and the use strength of the rubber shock absorber can be improved through the multi-layer composite structure, so that the overall service life of the rubber shock absorber is prolonged, and the overall practicability of the rubber shock absorber is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber shock absorbers, specifically a multi-layer composite structure rubber shock absorber for rail transit. Background Technology

[0002] Rail transit rubber shock absorbers are devices that utilize the elasticity and damping properties of rubber to reduce mechanical vibration, impact, and noise. They play a crucial role in rail transit, primarily used between tracks and ballast, in vehicle suspension systems, and on structures such as bridges and tunnels to reduce the transmission of vibration and noise, improve passenger comfort, and protect track structures from long-term vibration damage. To improve vehicle ride comfort and operational stability, a rubber shock absorber is needed; however, existing rubber shock absorbers still have the following shortcomings:

[0003] When existing rubber shock absorbers are in use, since most rubber shock absorbers are made from only a single material, their wear resistance and overall strength are easily affected after long-term use, thus shortening their overall service life and causing a decrease in their practicality and efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a multi-layer composite structure rubber shock absorber for rail transit, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer composite structure rail transit rubber shock absorber, including a mounting base and a shock-absorbing component. The mounting base has threaded grooves on its four sides, and mounting bolts are connected inside the threaded grooves. The shock-absorbing component is provided in the middle of the upper end of the mounting base. The shock-absorbing component includes a rubber shock absorber body, a threaded mounting groove, a carbon black layer, a metal steel plate, a silica layer, and a styrene-butadiene rubber layer. The rubber shock absorber body has a threaded mounting groove in the middle of its upper end. A carbon black layer is provided at the lower end of the rubber shock absorber body, and a metal steel plate is provided above the carbon black layer. A silica layer is provided at the upper end of the metal steel plate, and a styrene-butadiene rubber layer is provided above the silica layer. A protective component is provided on the outside of the rubber shock absorber body.

[0006] Furthermore, the internal dimensions of the threaded groove are adapted to the external dimensions of the mounting bolt, and the mounting bolt is rotatably connected to the mounting base through the threaded groove.

[0007] Furthermore, a white carbon black layer and a carbon black layer are respectively provided on the upper and lower sides of the metal steel plate, and the metal steel plate is disposed and confined between the white carbon black layer and the carbon black layer.

[0008] Furthermore, the outer side of the silica layer and the outer side of the styrene-butadiene rubber layer are horizontally distributed, and the upper surface of the silica layer and the lower surface of the styrene-butadiene rubber layer are closely attached.

[0009] Furthermore, the protective component includes a mounting docking groove, a receiving groove, a spring damping rod, and a limiting ball. The mounting docking groove has receiving grooves on both sides of its exterior, and a spring damping rod is installed inside the receiving groove. A limiting ball is provided at the front end of the spring damping rod.

[0010] Furthermore, the protective component also includes a mounting docking block, a limiting through hole, and a rubber protective sleeve. The mounting docking groove is connected to the mounting docking block, and the mounting docking block has limiting through holes on both sides inside, and a rubber protective sleeve is provided on the upper end of the mounting docking block.

[0011] Furthermore, the spring damping rod and the limiting ball are distributed perpendicularly, and the limiting ball is elastically connected to the receiving groove through the spring damping rod.

[0012] Furthermore, the external dimensions of the limiting ball are adapted to the internal dimensions of the limiting through hole, and the limiting ball is connected to the mounting docking block through the limiting through hole.

[0013] This utility model provides a multi-layer composite structure rubber shock absorber for rail transit, which has the following features:

[0014] Beneficial effects:

[0015] 1. This utility model, through the design of the shock-absorbing components, enables the use of multi-layer composite structure rubber shock absorbers in rail transit. The carbon black layer inside the main body of the rubber shock absorber provides excellent tear resistance and wear resistance, while the metal steel plate outside the carbon black layer increases the overall strength and stability of the rubber shock absorber. The white carbon black layer outside the metal steel plate enhances the strength and hardness of the rubber material, further improving the wear resistance of the rubber shock absorber. The styrene-butadiene rubber layer on the outermost part of the main body of the rubber shock absorber has good damping performance and oil resistance, making it suitable for high and low temperature environments. This extends the overall service life of the rubber shock absorber and improves its overall practicality and efficiency.

[0016] 2. This utility model, through the setting of protective components, enables the use of multi-layer composite structure rail transit rubber shock absorbers. A spring damping rod allows the limiting ball to elastically connect with the receiving groove. The installation docking groove, in conjunction with the installation docking block, limits the installation of the rubber protective sleeve to the outside of the rubber shock absorber body. Furthermore, the limiting ball, in conjunction with the limiting through hole, limits the installation of the docking block to the inside of the rubber shock absorber body, thus completing the installation of the rubber protective sleeve. This provides additional protection to the outside of the rubber shock absorber. The easily disassembled structure allows for convenient replacement, further improving the overall practicality and efficiency of the rubber shock absorber. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a multi-layer composite structure rubber shock absorber for rail transit according to the present invention;

[0018] Figure 2 This is a three-dimensional sectional view of the shock-absorbing component of a multi-layer composite structure rail transit rubber shock absorber according to the present invention.

[0019] Figure 3 This is a three-dimensional sectional view of the protective component of a multi-layer composite structure rail transit rubber shock absorber according to this utility model.

[0020] In the diagram: 1. Mounting base; 2. Threaded groove; 3. Mounting bolt; 4. Shock absorber assembly; 401. Rubber shock absorber body; 402. Threaded mounting groove; 403. Carbon black layer; 404. Metal steel plate; 405. Silica layer; 406. Styrene-butadiene rubber layer; 5. Protective assembly; 501. Mounting docking groove; 502. Receiving groove; 503. Spring damping rod; 504. Limiting ball; 505. Mounting docking block; 506. Limiting through hole; 507. Rubber protective sleeve. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figures 1 to 3As shown, a multi-layer composite structure rail transit rubber shock absorber includes a mounting base 1 and a shock-absorbing component 4. The mounting base 1 has threaded grooves 2 on its four sides, and mounting bolts 3 are connected inside the threaded grooves 2. The shock-absorbing component 4 is located at the upper center of the mounting base 1. The shock-absorbing component 4 includes a rubber shock absorber body 401, threaded mounting grooves 402, a carbon black layer 403, a metal steel plate 404, a silica layer 405, and a styrene-butadiene rubber layer 406. The rubber shock absorber body 401 has a threaded mounting groove 402 at its upper center, and the rubber shock absorber... A carbon black layer 403 is provided at the lower end of the inner part of the main body 401, and a metal steel plate 404 is provided above the carbon black layer 403. A white carbon black layer 405 is provided at the upper end of the metal steel plate 404, and a styrene-butadiene rubber layer 406 is provided at the upper end of the white carbon black layer 405. The internal dimensions of the threaded groove 2 are adapted to the external dimensions of the mounting bolt 3, and the mounting bolt 3 is rotatably connected to the mounting base 1 through the threaded groove 2. The white carbon black layer 405 and the carbon black layer 403 are respectively provided on the upper and lower sides of the metal steel plate 404, and the metal steel plate 404 is set and confined by the white carbon black layer. Between the silica layer 405 and the carbon black layer 403, the outer side of the silica layer 405 and the outer side of the styrene-butadiene rubber layer 406 are horizontally distributed, and the upper surface of the silica layer 405 is tightly attached to the lower surface of the styrene-butadiene rubber layer 406. The threaded mounting groove 402 opened in the middle of the upper end of the rubber shock absorber body 401 makes the rubber shock absorber body 401 easy to install. The carbon black layer 403 set inside the rubber shock absorber body 401 gives the rubber shock absorber body 401 excellent tear resistance and wear resistance, thereby significantly improving the wear resistance of the rubber material. The performance of the rubber shock absorber is enhanced by the metal steel plate 404 on the outside of the carbon black layer 403, which increases the overall strength and stability of the rubber shock absorber. The white carbon black layer 405 on the outside of the metal steel plate 404 improves the strength and hardness of the rubber material, thereby further enhancing the wear resistance of the rubber shock absorber. The styrene-butadiene rubber layer 406 on the outermost part of the rubber shock absorber body 401 has good damping performance and oil resistance, and is suitable for high and low temperature environments, thereby extending the overall service life of the rubber shock absorber and improving its overall practicality and efficiency.

[0023] like Figure 1 and Figure 3As shown, a protective component 5 is provided on the outside of the rubber shock absorber body 401. The protective component 5 includes a mounting groove 501, a receiving groove 502, a spring damping rod 503, and a limiting ball 504. The mounting groove 501 has receiving grooves 502 on both sides, and the spring damping rod 503 is installed inside the receiving groove 502. The front end of the spring damping rod 503 is provided with a limiting ball 504. The protective component 5 also includes a mounting block 505, a limiting through hole 506, and a rubber protective sleeve 507. The mounting block 505 is connected inside the mounting groove 501. The mounting block 505 has limit holes 506 on both sides inside, and a rubber protective sleeve 507 is provided on the upper end of the mounting block 505. The spring damping rod 503 and the limiting ball 504 are distributed vertically, and the limiting ball 504 is elastically connected to the receiving groove 502 through the spring damping rod 503. The external dimensions of the limiting ball 504 are adapted to the internal dimensions of the limit hole 506, and the limiting ball 504 is connected to the mounting block 505 through the limit hole 506. The spring damping rod 503 is fixedly installed on the rubber shock absorber body 401 by fastening bolts. The upper inner receiving groove 502 is used to fix the limiting ball 504 to the front end of the spring damping rod 503 with fastening bolts. The spring damping rod 503 makes the limiting ball 504 elastically connected to the receiving groove 502. The mounting docking block 505 is fixedly installed on both sides of the lower end inside the rubber protective sleeve 507. The external dimensions of the mounting docking block 505 are adapted to the internal dimensions of the mounting docking groove 501 opened at the upper end of the rubber shock absorber body 401. Thus, the rubber protective sleeve 507 is limited by the mounting docking groove 501 and the mounting docking block 505. The mounting block 505 is installed on the outside of the rubber shock absorber body 401. The internal dimensions of the limiting through hole 506 inside the mounting docking block 505 are adapted to the external dimensions of the limiting ball 504. Thus, the mounting docking block 505 is limited and installed inside the rubber shock absorber body 401 by the limiting ball 504 and the limiting through hole 506, thereby completing the installation of the rubber protective sleeve 507. The rubber protective sleeve 507 provides additional protection for the outside of the rubber shock absorber. At the same time, the easy-to-disassemble structure makes it easy to replace, further improving the overall practicality and efficiency of the rubber shock absorber.

[0024] In summary, this multi-layered composite structure of the rail transit rubber shock absorber is used by first inserting the mounting bolts 3 into the mounting base 1 through the threaded grooves 2 inside the mounting base 1. The mounting base 1 is then fixed between the rail and the track bed using the threaded grooves 2 and the mounting bolts 3. The carbon black layer 403 inside the rubber shock absorber body 401 provides excellent tear resistance and wear resistance. The metal steel plate 404 outside the carbon black layer 403 increases the overall strength and stability of the rubber shock absorber. The white carbon black layer 405 outside the metal steel plate 404 enhances the strength and hardness of the rubber material, further improving the wear resistance of the rubber shock absorber. The outermost layer of the rubber shock absorber body 401 is... The styrene rubber layer 406 has good shock absorption performance and oil resistance, making it suitable for high and low temperature environments, thereby extending the overall service life of the rubber shock absorber. Next, the limiting ball 504 is elastically connected to the receiving groove 502 by the spring damping rod 503. The rubber protective sleeve 507 is limited and installed on the outside of the rubber shock absorber body 401 by the installation docking groove 501 and the installation docking block 505 is limited and installed on the inside of the rubber shock absorber body 401 by the limiting ball 504 and the limiting through hole 506, thus completing the installation of the rubber protective sleeve 507. The rubber protective sleeve 507 provides additional protection for the outside of the rubber shock absorber, and the easy-to-disassemble structure makes it easy to replace, further improving the overall practicality and efficiency of the rubber shock absorber.

[0025] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A multi-layer composite structure rail transit rubber shock absorber, comprising a mounting base (1) and a shock-absorbing assembly (4), characterized in that, The mounting base (1) has threaded grooves (2) on its four sides, and mounting bolts (3) are connected inside the threaded grooves (2). A shock-absorbing component (4) is provided at the upper center of the mounting base (1), and the shock-absorbing component (4) includes a rubber shock absorber body (401), a threaded mounting groove (402), a carbon black layer (403), a metal steel plate (404), a white carbon black layer (405), and a styrene-butadiene rubber layer (406). The rubber shock absorber body (401) 1) A threaded mounting groove (402) is provided in the middle of the upper end, and a carbon black layer (403) is provided at the lower end of the rubber shock absorber body (401), and a metal steel plate (404) is provided above the carbon black layer (403). At the same time, a white carbon black layer (405) is provided at the upper end of the metal steel plate (404), and a styrene-butadiene rubber layer (406) is provided at the upper end of the white carbon black layer (405). A protective component (5) is provided on the outside of the rubber shock absorber body (401).

2. The multi-layer composite structure rail transit rubber shock absorber according to claim 1, characterized in that, The internal dimensions of the threaded groove (2) are adapted to the external dimensions of the mounting bolt (3), and the mounting bolt (3) is rotatably connected to the mounting base (1) through the threaded groove (2).

3. The multi-layer composite structure rail transit rubber shock absorber according to claim 1, characterized in that, The metal steel plate (404) has a white carbon black layer (405) and a carbon black layer (403) respectively on its upper and lower sides, and the metal steel plate (404) is disposed and confined between the white carbon black layer (405) and the carbon black layer (403).

4. A multi-layer composite structure rubber shock absorber for rail transit according to claim 1, characterized in that, The outer side of the silica layer (405) and the outer side of the styrene-butadiene rubber layer (406) are horizontally distributed, and the upper surface of the silica layer (405) and the lower surface of the styrene-butadiene rubber layer (406) are closely attached.

5. A multi-layer composite structure rubber shock absorber for rail transit according to claim 1, characterized in that, The protective component (5) includes a mounting docking groove (501), a receiving groove (502), a spring damping rod (503), and a limiting ball (504). The mounting docking groove (501) has receiving grooves (502) on both sides of its exterior, and a spring damping rod (503) is installed inside the receiving groove (502). A limiting ball (504) is provided at the front end of the spring damping rod (503).

6. A multi-layer composite structure rubber shock absorber for rail transit according to claim 5, characterized in that, The protective component (5) further includes a mounting docking block (505), a limiting through hole (506), and a rubber protective sleeve (507). The mounting docking groove (501) is internally connected to the mounting docking block (505), and the mounting docking block (505) has limiting through holes (506) on both sides inside, and a rubber protective sleeve (507) is provided on the upper end of the mounting docking block (505).

7. A multi-layer composite structure rubber shock absorber for rail transit according to claim 6, characterized in that, The spring damping rod (503) and the limiting ball (504) are distributed perpendicularly, and the limiting ball (504) is elastically connected to the receiving groove (502) through the spring damping rod (503).

8. A multi-layer composite structure rubber shock absorber for rail transit according to claim 6, characterized in that, The external dimensions of the limiting ball (504) are adapted to the internal dimensions of the limiting through hole (506), and the limiting ball (504) is connected to the mounting docking block (505) through the limiting through hole (506).

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