Damping mechanism of rail transit vehicle suspension system

Abstract

The utility model relates to the technical field of damping of rail vehicles, and provides a damping mechanism of a suspension system of a rail transit vehicle, which is characterized in that an inner seat and a bearing seat which can be connected with an external component to be damped are arranged inside an outer shell, and when the inner seat and the bearing seat shake horizontally along with the running of the vehicle, the inner seat and the bearing seat can be damped. According to the design, the bearing seat can make contact with the anti-skid sleeve in the outer shell and horizontally extrude the rotating shaft, at the moment, the whole sliding seat is horizontally extruded by the bearing seat to slide in the direction of the damper at the position of the transverse rod and extrude the bearing spring part of the damper, and therefore the purpose of cushioning is achieved; therefore, compared with a comparison file, the supporting seat can be cushioned in the horizontal direction, and then an external to-be-cushioned part connected with the inner seat is kept stable in the running process of the vehicle.

Description

Technical Field

[0001] This utility model relates to the field of shock absorption technology for rail vehicles, specifically to a shock absorption mechanism for a rail transit vehicle suspension system. Background Technology

[0002] The main function of the shock absorption mechanism in the suspension system of rail transit vehicles is to mitigate and suppress the impacts on the vehicle during operation, thereby improving ride stability and passenger comfort.

[0003] A search revealed that CN215293383U discloses an adjustable shape memory alloy shock absorber for a rail transit vibration damping system. The shock absorber includes a body, a screw fixedly connected to the top of the body, and horizontal plates fixedly connected to both sides of the top of the body. The top of the screw extends through to the top of the horizontal plates, and an adjusting sleeve is threadedly connected to the bottom of the screw surface. A fixing ring is fixedly connected to the surface of the adjusting sleeve, and the top of the fixing ring is slidably connected to the bottom of the horizontal plates. Placement grooves are provided on both the front and back sides of the horizontal plates. This invention solves the problem that existing shock absorbers mostly adjust their damping force by rotating the screw sleeve, which is cumbersome and prone to rotation. This adjustable shape memory alloy shock absorber for a rail transit vibration damping system offers the advantage of easy adjustment, improving the practicality of the shock absorber.

[0004] The aforementioned adjustable shape memory alloy shock absorber for rail transit vibration reduction system has a spring coil inside the shock absorber body that is vertically elastically connected to the cross plate to dampen the cross plate. However, during vehicle operation, factors such as driving inertia cause the cross plate to sway horizontally at the shock absorber body. This design cannot dampen the cross plate in the horizontal direction, which leads to a collision between the side of the cross plate and the shock absorber body, resulting in severe horizontal swaying of the cross plate and even collision wear. Utility Model Content

[0005] This utility model proposes a shock-absorbing mechanism for the suspension system of rail transit vehicles, which solves the problem that the existing technology cannot dampen the horizontal vibration of the cross plate, which leads to the collision between the side of the cross plate and the shock absorber body, resulting in severe horizontal swaying of the cross plate or even collision wear.

[0006] The technical solution of this utility model is as follows: A shock-absorbing mechanism for a suspension system of a rail transit vehicle includes a support component. The support component includes an outer shell, an inner seat and a support base disposed inside the outer shell. Rail grooves are provided around the inner wall of the outer shell. A support component is provided in the middle of each rail groove. A sliding contact component that contacts the inner seat is symmetrically slidably connected to the outside of the support component. Shock-absorbing components that can play a horizontal shock-absorbing role when the inner seat slides in contact with the inner seat are symmetrically arranged on both sides of each rail groove.

[0007] Preferably, the support assembly further includes a base, which is fixedly connected to the bottom of the outer shell. The support assembly also includes two sets of spring coils disposed in the outer shell, with the top of each spring coil fixedly connected to the inner seat and the bottom of each spring coil fixedly connected to the base.

[0008] Preferably, the support assembly includes two sets of brackets, which are symmetrically and fixedly connected to the middle of the inner wall of the rail groove.

[0009] Preferably, the support assembly further includes a crossbar, which is fixedly connected to the middle of the two sets of brackets.

[0010] Preferably, the damping assembly includes dampers, each damper being symmetrically installed at both ends of the rail groove on the crossbar, and load-bearing springs are distributed on the outer side of the dampers.

[0011] Preferably, the sliding contact assembly includes a slide block with a through groove in the middle. The sliding contact assembly also includes a ball bearing, which is rotatably connected to the inner wall of the groove in a ring shape. The ball bearing contacts the crossbar, and the slide block is slidably connected to the outside of the crossbar through the groove and the ball bearing.

[0012] Preferably, the sliding contact assembly further includes two sets of rotating shafts, which are symmetrically rotatably connected to the side of the slide.

[0013] Preferably, the sliding contact assembly further includes an anti-slip sleeve, which wraps around the outside of the rotating shaft and contacts the outside of the inner seat.

[0014] The beneficial effects of this utility model are as follows:

[0015] This design features an inner seat and a support seat inside the outer casing that can connect to external components to be damped. When the inner seat and support seat sway horizontally with the vehicle's movement, the support seat contacts the anti-slip sleeve inside the outer casing and horizontally presses against the pivot. At this time, the slide block, under the horizontal pressure of the support seat, slides towards the damper at the crossbar and presses against the damper's bearing spring, thereby achieving the purpose of damping. Furthermore, this design has damping components and sliding contact components in the four rail grooves around the outer casing. Therefore, compared to the prior art, this design can dampen the support seat in the horizontal direction, thus ensuring that the external components to be damped connected to the inner seat remain stable during vehicle movement. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a side sectional view of the support component of this utility model;

[0018] Figure 2 This is a schematic diagram of the interior of the outer casing of this utility model;

[0019] Figure 3 This is a schematic diagram of the support component of this utility model;

[0020] Figure 4 This is a schematic diagram of the shock-absorbing component of this utility model;

[0021] Figure 5 This is a schematic diagram of the sliding contact component of this utility model;

[0022] In the diagram: 1. Support assembly; 11. Outer shell; 111. Rail groove; 12. Base; 121. Spring ring; 13. Inner seat; 131. Support seat; 2. Support assembly; 21. Crossbar; 22. Bracket; 3. Shock absorption assembly; 31. Damper; 32. Load-bearing spring; 4. Sliding contact assembly; 41. Slide seat; 42. Rotating shaft; 421. Anti-slip sleeve; 43. Slide groove; 431. Ball bearing. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0024] Please see Figure 1 and Figure 3 and Figure 4This utility model provides a technical solution: a shock-absorbing mechanism for a suspension system of a rail transit vehicle, including a support component 1, the support component 1 including an outer shell 11, the support component 1 also including an inner seat 13 and a support seat 131 disposed inside the outer shell 11, the inner wall of the outer shell 11 is provided with rail grooves 111 around the perimeter, a support component 2 is provided in the middle of each rail groove 111, a sliding contact component 4 that contacts the inner seat 13 is symmetrically slidably connected to the outside of the support component 2, and a damping component 3 that can play a horizontal shock-absorbing role when the inner seat 13 slides in contact with the support component 2 is symmetrically arranged on both sides of each rail groove 111;

[0025] This design solves the problem that existing technologies cannot mitigate horizontal vibrations of the horizontal plate, which leads to collisions between the side of the horizontal plate and the shock absorber body, resulting in severe horizontal swaying of the horizontal plate or even collision wear.

[0026] Please see Figure 1 The support assembly 1 also includes a base 12, which is fixedly connected to the bottom of the outer shell 11. The support assembly 1 also includes two sets of spring rings 121 disposed in the outer shell 11. The top of each spring ring 121 is fixedly connected to the inner seat 13, and the bottom of each spring ring 121 is fixedly connected to the base 12.

[0027] The base 12, in conjunction with the spring ring 121, can provide vertical elastic shock absorption for the inner seat 13 and the support seat 131.

[0028] Please see Figure 3 The support component 2 includes two sets of brackets 22, which are symmetrically and fixedly connected to the middle of the inner wall of the rail groove 111.

[0029] The support assembly 2 also includes a crossbar 21, which is fixedly connected to the middle of the two sets of brackets 22;

[0030] The crossbar 21 can be fixed in the rail groove 111 by the bracket 22, and the sliding contact assembly 4 can be slidable by the crossbar 21.

[0031] Please see Figure 4 The damping component 3 includes a damper 31, each damper 31 is symmetrically installed at both ends of the crossbar 21 in the rail groove 111, and a bearing spring 32 is distributed on the outside of the damper 31.

[0032] The damper 31, in conjunction with the load-bearing spring 32, can provide shock absorption for the sliding block 41 that is pressed against the crossbar 21.

[0033] Please see Figure 5The sliding contact assembly 4 includes a slide block 41, with a slide groove 43 extending through the middle of the slide block 41. The sliding contact assembly 4 also includes a ball 431, which is rotatably connected to the inner wall of the slide groove 43 in a ring shape. The ball 431 contacts the crossbar 21. The slide block 41 is slidably connected to the outside of the crossbar 21 through the slide groove 43 and the ball 431.

[0034] The ball bearing 431 can reduce the sliding friction of the slide block 41 on the outside of the crossbar 21.

[0035] The sliding contact assembly 4 also includes two sets of rotating shafts 42, which are symmetrically rotatably connected to the side of the slide block 41.

[0036] The sliding contact assembly 4 also includes an anti-slip sleeve 421, which wraps around the outside of the rotating shaft 42 and contacts the outside of the inner seat 13.

[0037] The rotatable shaft 42, in conjunction with the anti-slip sleeve 421, can reduce the contact, squeezing, and friction with the inner seat 13.

[0038] The working principle and usage process of this utility model are as follows:

[0039] When the external shock-absorbing component fixedly installed with the support 131 sways horizontally as the vehicle moves, the inner seat 13 will contact the anti-slip sleeve 421 and the rotating shaft 42 inside the outer shell 11. At this time, the slide 41 will slide towards the damper 31 at the crossbar 21 under the horizontal pressure of the support 131 and press the bearing spring 32 of the damper 31 to achieve the purpose of shock absorption. In addition, the design has shock absorption components 3 and sliding contact components 4 in the four rail grooves 111 inside the outer shell 11. Therefore, compared with the prior art, the design can absorb the shock of the support 131 in the horizontal direction, so that the external shock-absorbing component connected with the inner seat 13 can remain stable during the vehicle's movement.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A shock-absorbing mechanism for a suspension system of a rail transit vehicle, comprising a support assembly (1), characterized in that, The supporting component (1) includes an outer shell (11), and the supporting component (1) also includes an inner seat (13) and a support seat (131) disposed inside the outer shell (11). The inner wall of the outer shell (11) is provided with rail grooves (111) around its perimeter. A support component (2) is provided in the middle of each rail groove (111). A sliding contact component (4) that contacts the inner seat (13) is symmetrically slidably connected to the outside of the support component (2). A damping component (3) that can play a horizontal shock absorption role when the inner seat (13) slides in contact with the inner seat (13) is symmetrically disposed on both sides of each rail groove (111).

2. The shock absorption mechanism for a rail transit vehicle suspension system according to claim 1, characterized in that, The support assembly (1) also includes a base (12), which is fixedly connected to the bottom of the outer shell (11). The support assembly (1) also includes two sets of spring rings (121) disposed in the outer shell (11). The top of each spring ring (121) is fixedly connected to the inner seat (13), and the bottom of each spring ring (121) is fixedly connected to the base (12).

3. The shock absorption mechanism for a rail transit vehicle suspension system according to claim 1, characterized in that, The support assembly (2) includes two sets of brackets (22), which are symmetrically fixedly connected to the middle of the inner wall of the rail groove (111).

4. The shock absorption mechanism for a rail transit vehicle suspension system according to claim 1, characterized in that, The support assembly (2) also includes a crossbar (21), which is fixedly connected to the middle of the two sets of brackets (22).

5. The shock absorption mechanism for a rail transit vehicle suspension system according to claim 1, characterized in that, The damping component (3) includes a damper (31), and each damper (31) is symmetrically installed on the rail groove (111) at both ends of the crossbar (21). A load-bearing spring (32) is distributed on the outside of the damper (31).

6. The shock absorption mechanism for a rail transit vehicle suspension system according to claim 1, characterized in that, The sliding contact assembly (4) includes a slide block (41), a slide groove (43) is provided through the middle of the slide block (41), and the sliding contact assembly (4) also includes a ball (431), the ball (431) is rotatably connected in a ring to the inner wall of the slide groove (43), the ball (431) is in contact with the crossbar (21), and the slide block (41) is slidably connected to the outside of the crossbar (21) through the slide groove (43) and the ball (431).

7. The shock absorption mechanism for a rail transit vehicle suspension system according to claim 1, characterized in that, The sliding contact assembly (4) also includes two sets of rotating shafts (42), which are symmetrically rotatably connected to the side of the slide (41).

8. The shock absorption mechanism for a rail transit vehicle suspension system according to claim 1, characterized in that, The sliding contact assembly (4) also includes an anti-slip sleeve (421), which is wrapped around the outside of the rotating shaft (42) and contacts the outside of the inner seat (13).

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