Rubber vibration isolator for railway

Abstract

The utility model relates to the technical field of rubber vibration isolators, and discloses a rubber vibration isolator for a railway. The pressure-bearing damping top ring is installed at the top in the rubber vibration isolator body structure, and the pressure-bearing damping top ring and the internal thread connecting branch pipe are fixedly connected in an inserted mode, so that the efficiency of connecting the pressure-bearing damping top ring with the rubber vibration isolator body is higher, and the stability is better; the connecting support ring, the vibration isolation bottom support rib and the creep-resistant bottom support ring structure are embedded at the bottom in the rubber vibration isolator body, so that the whole structure has a light weight effect, the middle connection of the vibration isolation buffer support spring is more stable, the situation of uneven stress is not easy to occur, and the service life of the vibration isolation buffer support spring is prolonged. According to the rubber vibration isolator, the vibration isolation buffering supporting springs are arranged on the rubber vibration isolator body, so that the transverse and longitudinal stress of the whole rubber vibration isolator body is buffered by the vibration isolation buffering supporting springs, the structure of the rubber vibration isolator body is conveniently and quickly reset, the structure of the rubber vibration isolator body is reinforced, the aging and creep deformation of the rubber vibration isolator body are greatly slowed down, and the replacement and maintenance frequency is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber vibration isolators, in particular to a rubber vibration isolator used for railways. Background Art

[0002] Rubber isolators are mainly used to isolate high-frequency vibrations. They are made of rubber and can be used in both compression and shear states. The biggest advantage of rubber isolators is that they have sufficient internal damping and are suitable for situations where the static displacement is small and the dynamic displacement is short but large. They can also be made into various shapes to meet space requirements.

[0003] The rubber isolators currently made of rubber, even if different formulas are used to improve the rubber quality, still have the defect of easy aging during long-term pressure-bearing use. After aging, the rubber isolators will creep and it is difficult to maintain effective application quality, which is not conducive to efficient isolation of high-frequency vibrations and increases the maintenance frequency. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a rubber vibration isolator for railways, which solves the problem that the rubber vibration isolator is prone to excessively rapid aging and creep.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A rubber vibration isolator for railways comprises a rubber vibration isolator body, a pressure-bearing shock-absorbing top ring is fixedly installed on the top of the inner wall of the rubber vibration isolator body, an internal threaded connecting branch pipe is fixedly inserted in the inner longitudinal direction of the pressure-bearing shock-absorbing top ring, a vibration isolation buffer support spring is fixedly installed on the bottom surface of the pressure-bearing shock-absorbing top ring, a connecting support ring is fixedly installed on the bottom end of the vibration isolation buffer support spring, a vibration isolation bottom support rib is fixedly installed on the outer surface of the connecting support ring, and an anti-creep bottom support ring is fixedly installed on the end of the vibration isolation bottom support rib away from the connecting support ring.

[0007] Preferably, the rubber isolator body comprises a vibration isolator rubber part, an installation angle hole and a installation groove, the installation angle hole longitudinally penetrates through a corner of the vibration isolator rubber part, and the installation groove is opened at the top of the vibration isolator rubber part.

[0008] Preferably, one end of the vibration isolation bottom support rib close to the anti-creep bottom support ring and the anti-creep bottom support ring are both embedded and installed at the bottom of the rubber part of the vibration isolator.

[0009] Preferably, there are multiple vibration isolation bottom support ribs, and the multiple vibration isolation bottom support ribs are equidistantly fixed around the inner ring wall of the anti-creep bottom support ring, and the multiple vibration isolation bottom support ribs are equidistantly fixed on the outer ring surface of the connecting support ring.

[0010] Preferably, the pressure-bearing shock-absorbing top ring is a disc-shaped structure, and the top surface and side ends of the pressure-bearing shock-absorbing top ring are fixedly connected to the top of the inner wall of the rubber part of the vibration isolator.

[0011] Preferably, the pressure-bearing shock-absorbing top ring, the vibration-isolating buffer support spring, the connecting support ring, the vibration-isolating bottom support ribs and the anti-creep bottom support ring are all made of steel.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the rubber vibration isolator for railways is provided with a pressure-bearing shock-absorbing top ring installed on the top of the rubber vibration isolator body structure, and the pressure-bearing shock-absorbing top ring and the internal threaded connecting branch pipe are fixedly plugged, so that the pressure-bearing shock-absorbing top ring is connected to the rubber vibration isolator body with higher efficiency and better stability, and the connecting support ring, the vibration isolation bottom support rib and the anti-creep bottom support ring structure are embedded and installed on the bottom of the rubber vibration isolator body, so that the overall structure has a lightweight effect, so that the central connection of the vibration isolation buffer support spring is more stable and less prone to uneven force, so that the vibration isolation buffer support spring can buffer the lateral and longitudinal forces of the entire rubber vibration isolator body, and the structure of the rubber vibration isolator body is also convenient for rapid reset, and the rubber vibration isolator body structure is reinforced, which greatly slows down the aging and creep of the rubber vibration isolator body and reduces the frequency of replacement and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional view of the structure of the utility model;

[0014] Figure 2 It is a three-dimensional view of the structure of the utility model;

[0015] Figure 3 It is a three-dimensional view of the local structure of the utility model;

[0016] Figure 4 This is a three-dimensional view of the bottom of the structure of the utility model.

[0017] In the figure: 1 rubber isolator body, 101 isolator rubber part, 102 mounting angle hole, 103 mounting groove, 5 pressure-bearing shock-absorbing top ring, 6 internal thread connecting branch pipe, 7 vibration isolation buffer support spring, 8 connecting support ring, 9 vibration isolation bottom support rib, 10 anti-creep bottom support ring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Reference Figure 1-4 A rubber vibration isolator for railways comprises a rubber vibration isolator body 1, a pressure-bearing shock-absorbing top ring 5 is fixedly installed on the top of the inner wall of the rubber vibration isolator body 1, an internal threaded connecting branch pipe 6 is fixedly inserted in the inner longitudinal direction of the pressure-bearing shock-absorbing top ring 5, a vibration isolation buffer support spring 7 is fixedly installed on the bottom surface of the pressure-bearing shock-absorbing top ring 5, a connecting support ring 8 is fixedly installed on the bottom end of the vibration isolation buffer support spring 7, a vibration isolation bottom support rib 9 is fixedly installed on the outer surface of the connecting support ring 8, and an anti-creep bottom support ring 10 is fixedly installed on the end of the vibration isolation bottom support rib 9 away from the connecting support ring 8.

[0020] In the present invention, the rubber isolator body 1 includes a vibration isolator rubber part 101, an installation angle hole 102 and an installation groove 103, wherein the installation angle hole 102 is longitudinally penetrated and opened at the corner of the vibration isolator rubber part 101, and the installation groove 103 is opened at the top of the vibration isolator rubber part 101;

[0021] More specifically, a mounting groove 103 is provided on the top of the vibration isolator rubber part 101 to facilitate the structural assembly operation.

[0022] In the present invention, one end of the vibration isolation bottom support rib 9 close to the anti-creep bottom support ring 10 and the anti-creep bottom support ring 10 are both embedded and installed at the bottom of the rubber part 101 of the vibration isolator;

[0023] More specifically, by arranging part of the vibration isolation bottom support rib 9 and the anti-creep bottom support ring 10 embedded in the vibration isolator rubber part 101, the support provided by the structure to the rubber structure is more effective, which greatly slows down the creep of the rubber.

[0024] In the present invention, the number of the vibration isolation bottom support ribs 9 is multiple, and the multiple vibration isolation bottom support ribs 9 are equidistantly fixedly installed around the inner wall of the anti-creep bottom support ring 10, and the multiple vibration isolation bottom support ribs 9 are equidistantly fixedly installed on the outer surface of the connecting support ring 8;

[0025] More specifically, by arranging a plurality of vibration-isolating bottom support bars 9 which are equidistantly and fixedly installed between the connecting support ring 8 and the anti-creep bottom support ring 10, the structural strength is ensured and the bottom structure provides better support and bearing stability.

[0026] In the present invention, the pressure-bearing shock-absorbing top ring 5 is a disc-shaped structure, and the top surface and side ends of the pressure-bearing shock-absorbing top ring 5 are fixedly connected to the top of the inner wall of the rubber part 101 of the vibration isolator;

[0027] More specifically, by setting the top surface and side ends of the pressure-bearing shock-absorbing top ring 5 to be fixedly connected to the top of the inner wall of the rubber part 101 of the vibration isolator, the structural connection is more fitted, and the shock-absorbing effect of the rubber structure and the spring structure is better integrated.

[0028] In the utility model, the pressure-bearing shock-absorbing top ring 5, the vibration-isolating buffer support spring 7, the connecting support ring 8, the vibration-isolating bottom support rib 9 and the anti-creep bottom support ring 10 are all made of steel;

[0029] More specifically, by using steel to make the pressure-bearing shock-absorbing top ring 5, the vibration isolation buffer support spring 7, the connecting support ring 8, the vibration isolation bottom support rib 9 and the anti-creep bottom support ring 10, the structure provides longitudinal and lateral support, which not only ensures the shock-absorbing effect of the structure, but also greatly prevents the aging and creep of the rubber isolator itself.

[0030] Working principle: a pressure-bearing shock-absorbing top ring 5 is installed at the top of the isolator rubber part 101 structure to provide multi-area contact, so that the pressure-bearing shock-absorbing top ring 5 provides a larger bearing stress; the pressure-bearing shock-absorbing top ring 5 and the internal threaded connecting branch pipe 6 are connected and fixed, and the internal threaded connecting branch pipe 6 is fixed in the isolator rubber part 101 structure, so that the pressure-bearing shock-absorbing top ring 5 and the internal threaded connecting branch pipe 6 are connected to the isolator rubber part 101 structure.

[0031] Ensures the stability of the connection;

[0032] The connection support ring 8, the vibration isolation bottom support rib 9 and the anti-creep bottom support ring 10 are fixed to the vibration isolator rubber part 101 structure, and the end portion of the vibration isolation bottom support rib 9 and the entire anti-creep bottom support ring 10 are embedded and installed at the bottom of the rubber vibration isolator body, thereby ensuring the connection efficiency of the bottom support part structure and ensuring the stress support of the bottom of the vibration isolator rubber part 101;

[0033] The vibration isolation bottom support rib 9 is provided as a connecting structure, so that the overall structure can be designed lightweight. The vibration isolation buffer support spring 7 is provided as a longitudinally centered connecting shock-absorbing structure, which not only reinforces the rubber part 101 of the vibration isolator, but also makes the overall structure more efficient in vibration buffering, that is, it can reduce the aging and creep of the rubber vibration isolator body 1.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] 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 rubber vibration isolator for railways, comprising a rubber vibration isolator body (1), characterized in that: A pressure-bearing shock-absorbing top ring (5) is fixedly mounted on the top of the inner wall of the rubber vibration isolator body (1); an internal threaded connecting branch pipe (6) is fixedly inserted in the longitudinal direction inside the pressure-bearing shock-absorbing top ring (5); a vibration-isolating buffer support spring (7) is fixedly mounted on the bottom surface of the pressure-bearing shock-absorbing top ring (5); a connecting support ring (8) is fixedly mounted on the bottom end of the vibration-isolating buffer support spring (7); a vibration-isolating bottom support rib (9) is fixedly mounted on the outer surface of the connecting support ring (8); and an anti-creep bottom support ring (10) is fixedly mounted on the end of the vibration-isolating bottom support rib (9) away from the connecting support ring (8).

2. The rubber vibration isolator for railway according to claim 1, characterized in that: The rubber vibration isolator body (1) comprises a vibration isolator rubber part (101), an installation angle hole (102) and an installation groove (103), wherein the installation angle hole (102) longitudinally penetrates a corner of the vibration isolator rubber part (101), and the installation groove (103) is provided at the top of the vibration isolator rubber part (101).

3. The rubber vibration isolator for railway according to claim 2, characterized in that: One end of the vibration isolation bottom support rib (9) close to the anti-creep bottom support ring (10) and the anti-creep bottom support ring (10) are both embedded and installed at the bottom of the vibration isolator rubber part (101).

4. The rubber vibration isolator for railway according to claim 1, characterized in that: The number of the vibration isolation bottom support ribs (9) is multiple, and the multiple vibration isolation bottom support ribs (9) are equidistantly fixedly installed around the inner ring wall of the anti-creep bottom support ring (10), and the multiple vibration isolation bottom support ribs (9) are equidistantly fixedly installed on the outer ring surface of the connecting support ring (8).

5. The rubber vibration isolator for railway according to claim 2, characterized in that: The pressure-bearing shock-absorbing top ring (5) is a disc-shaped structure, and the top surface and side ends of the pressure-bearing shock-absorbing top ring (5) are fixedly connected to the top of the inner wall of the rubber part (101) of the vibration isolator.

6. The rubber vibration isolator for railway according to claim 1, characterized in that: The pressure-bearing shock-absorbing top ring (5), the vibration-isolating buffer support spring (7), the connecting support ring (8), the vibration-isolating bottom support rib (9) and the anti-creep bottom support ring (10) are all made of steel.

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