CN220518279U - Rail transit vehicle braking buffer device - Google Patents

Abstract

The utility model relates to the field of urban rail transit, and discloses a rail transit vehicle braking buffer device which comprises a rail train, wherein the lower end of the rail train is provided with a mounting groove, a fixed plate is fixed in the mounting groove, the lower end of the fixed plate is fixed with a side plate, the lower end of the fixed plate is fixed with a hydraulic rod, the periphery of the hydraulic rod is sleeved with a first spring, the lower end of the hydraulic rod is fixed with a bottom plate, the lower end of the bottom plate is fixed with a wear-resisting block.

Description

Rail transit vehicle braking buffer device

Technical Field

The utility model relates to the technical field of urban rail transit, in particular to a rail transit vehicle braking buffer device.

Background

The urban rail transit is a vehicle transportation system for carrying out bearing and guiding by adopting a rail structure, a totally-enclosed or partially-enclosed special rail line is arranged according to the overall planning requirement of the urban rail transit, the urban rail transit vehicle is usually braked by adopting a brake pad in the braking process, and the brake pad is usually required to be overhauled and replaced regularly in a more wasteful manner.

The bulletin number is: the utility model patent of CN115465321a discloses a brake buffer device for urban rail transit vehicles, which comprises a rail train, sliding grooves are formed in two sides of the lower surface of the rail train, a motor is arranged at one end of the inside of the sliding grooves, a threaded screw rod is connected with one end of the motor in a transmission manner, sliding blocks are connected with two ends of the surface of the threaded screw rod in a threaded manner, a brake block is arranged at the lower end of the sliding block, a connecting block is fixedly connected with the middle part of the upper surface of the brake block, a transmission rod is arranged between the connecting block and the sliding block, the upper end of the transmission rod is rotationally connected with the lower surface of the sliding block, the lower end of the transmission rod is rotationally connected with the surface of the connecting block, a wear-resisting block is connected with the inside of the brake block in a sliding manner, and a wear-resisting plate is fixedly connected with the lower surface of the wear-resisting block.

This patent has the following drawbacks: the device brake block 19's upper surface mid portion fixedly connected with connecting block 18, the upper end rotation of transfer line 17 is connected at the lower surface of sliding block 16, the lower extreme rotation of transfer line 17 is connected at the surface of connecting block 18, because transfer line 17 and brake block 19 belong to the rotation and are connected, thereby make wear-resisting piece 20 and ground friction, when braking the train, the brake block 19 can take place clockwise rotation round the bottom of transfer line 17, take place relative rotation between wear-resisting piece 20 and the rail, frictional force between wear-resisting piece 20 and the rail causes the influence, thereby influence the braking effect to the train.

Accordingly, the present application provides a rail transit vehicle brake cushioning device that ameliorates the above-described problems.

Disclosure of Invention

The utility model aims to provide a rail transit vehicle braking buffer device, which solves the problem that the friction force between a wear-resistant block and a rail is influenced by the relative rotation between the wear-resistant block and the rail.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a rail transit vehicle braking buffer, includes the rail train, the mounting groove has been seted up to the lower extreme of rail train, the inside of mounting groove is fixed with the fixed plate, the lower extreme of fixed plate is fixed with the curb plate, the lower extreme of fixed plate is fixed with the hydraulic rod, the peripheral cover of hydraulic rod has first spring, the lower extreme of hydraulic rod is fixed with the bottom plate, the lower extreme of bottom plate is fixed with the wear-resisting piece, be provided with the buffer who is used for buffering between bottom plate and the fixed plate.

The hydraulic rods are arranged in two, and are symmetrically distributed on two sides of the side plates.

Wherein, the lower extreme of wear-resisting piece is the arc.

The buffer device comprises a sliding block, a fixed rod, a connecting block, a telescopic rod, a second spring, a rotating rod and a mounting block, wherein the fixed rod is fixed inside the side plate, the sliding block is sleeved on the fixed rod in a sliding mode, the lower end of the sliding block is fixed on the connecting block, the rotating rod is connected onto the connecting block in a rotating mode, the lower end of the rotating rod is connected with the bottom plate in a rotating mode through the mounting block, the telescopic rod is fixed on the inner side of the connecting block, and the second spring is sleeved on the periphery of the telescopic rod.

One end of the first spring is fixed on the fixed plate, and the other end of the first spring is fixed on the bottom plate.

Wherein, the both ends of second spring are fixed on the connecting block.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, when the wear-resistant block is in contact with the ground, the lower part of the wear-resistant block is firstly in contact with the ground, then in the process that the wear-resistant block continuously moves downwards, the contact area between the wear-resistant block and the ground is enlarged, so that the braking effect of the wear-resistant block is better, when the wear-resistant block brakes, the bottom plate moves upwards to extrude the mounting block, then the bottoms of the two rotating rods rotate outwards, so that the rotating rods drive the connecting blocks to extrude inwards, then the telescopic rods extrude, the second springs convert kinetic energy into elastic potential energy, so that a good buffering effect is achieved, the service life of the wear-resistant block is prolonged, the first springs can buffer the hydraulic rods, so that the double buffering effect of the wear-resistant block is achieved, and when the wear-resistant block rubs with the ground, the hydraulic rods and the buffering device act together, so that the wear-resistant block cannot rotate, and the braking effect of the wear-resistant block is prevented from being influenced.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present utility model;

FIG. 2 is a schematic diagram of an exploded view of the present utility model;

FIG. 3 is a schematic view of a buffer device according to the present utility model.

In the figure: 1. a rail train; 2. a mounting groove; 3. a fixing plate; 4. a side plate; 5. a hydraulic rod; 6. a first spring; 7. a bottom plate; 8. a wear block; 9. a slide block; 10. a fixed rod; 11. a connecting block; 12. a telescopic rod; 13. a second spring; 14. a rotating lever; 15. and (5) installing a block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a rail transit vehicle braking buffer, includes rail train 1, and mounting groove 2 has been seted up to rail train 1's lower extreme, and mounting groove 2's inside is fixed with fixed plate 3, and fixed plate 3's lower extreme is fixed with curb plate 4, and fixed plate 3's lower extreme is fixed with hydraulic stem 5, and hydraulic stem 5's peripheral cover has first spring 6, and hydraulic stem 5's lower extreme is fixed with bottom plate 7, and bottom plate 7's lower extreme is fixed with wear-resisting piece 8, is provided with the buffer who is used for buffering between bottom plate 7 and the fixed plate 3. When the device brakes the rail train 1, the hydraulic rod 5 is started to drive the bottom plate 7 to move downwards, so that the wear-resisting block 8 is in contact with the ground and rubs against the ground, the wear-resisting block 8 brakes the rail train 1, and then the buffer device can play a role in buffering when the wear-resisting block 8 contacts the ground, so that the wear-resisting block 8 is more durable.

Wherein, the hydraulic rod 5 is provided with two, and the symmetrical distribution is in the both sides of curb plate 4. The bottom plate 7 can be made more stable in the process of moving down.

Wherein, the lower extreme of wear-resisting piece 8 is the arc. When the wear-resisting block 8 is contacted with the ground, the lower part of the wear-resisting block 8 is contacted with the ground firstly, and then the contact area between the wear-resisting block 8 and the ground is enlarged in the process that the wear-resisting block 8 continuously moves downwards, so that the braking effect of the wear-resisting block 8 is better.

Wherein, buffer includes slider 9, dead lever 10, connecting block 11, telescopic link 12, second spring 13, dwang 14 and installation piece 15, dead lever 10 is fixed in the inside of curb plate 4, the slider 9 has been cup jointed in the slip on the dead lever 10, the lower extreme of slider 9 is fixed on connecting block 11, the last swivelling joint of connecting block 11 has dwang 14, the lower extreme of dwang 14 is connected with bottom plate 7 rotation through installation piece 15, the inboard of connecting block 11 is fixed with telescopic link 12, the peripheral cover of telescopic link 12 has second spring 13, the both ends of second spring 13 are fixed on connecting block 11. When the wear-resisting block 8 brakes, the bottom plate 7 can be made to move up and down, the installation block 15 is extruded upwards, then the bottoms of the two rotating rods 14 are rotated outwards, so that the rotating rods 14 drive the connecting blocks 11 to extrude inwards, then the telescopic rods 12 are extruded, the second springs 13 are extruded, kinetic energy is converted into elastic potential energy by the second springs 13, and therefore good buffering effect is achieved, and the service life of the wear-resisting block 8 is prolonged.

Wherein, one end of the first spring 6 is fixed on the fixed plate 3, and the other end is fixed on the bottom plate 7. The first spring 6 can cushion the hydraulic lever 5, thereby realizing a double cushioning effect on the bottom plate 7.

Working principle: when the device is used for braking the rail train 1, the hydraulic rod 5 is started to drive the bottom plate 7 to move downwards, so that the wear-resistant block 8 is in contact with the ground, when the wear-resistant block 8 is in contact with the ground, the lower part of the wear-resistant block 8 is in contact with the ground firstly, then in the process that the wear-resistant block 8 continuously moves downwards, the contact area between the wear-resistant block 8 and the ground is enlarged, so that the braking effect of the wear-resistant block 8 is better, the bottom plate 7 can be made to move up and down when the wear-resistant block 8 brakes, the installation block 15 is extruded upwards, then the bottoms of the two rotating rods 14 are rotated outwards, so that the rotating rods 14 drive the connecting blocks 11 to extrude inwards, then the telescopic rods 12 are extruded, the second springs 13 are extruded, kinetic energy is converted into elastic potential energy, thereby playing a good buffering effect, the service life of the wear-resistant block 8 is prolonged, the first springs 6 can buffer the hydraulic rod 5, and thus the dual buffering effect of the wear-resistant block 8 is realized.

Claims (6)

1. The utility model provides a rail transit vehicle braking buffer, includes rail train (1), mounting groove (2) have been seted up to rail train (1) lower extreme, the inside of mounting groove (2) is fixed with fixed plate (3), the lower extreme of fixed plate (3) is fixed with curb plate (4), its characterized in that: the lower extreme of fixed plate (3) is fixed with hydraulic rod (5), the periphery cover of hydraulic rod (5) has first spring (6), the lower extreme of hydraulic rod (5) is fixed with bottom plate (7), the lower extreme of bottom plate (7) is fixed with wear-resisting piece (8), be provided with the buffer who is used for buffering between bottom plate (7) and fixed plate (3).

2. A rail transit vehicle brake cushioning device as claimed in claim 1, wherein: the hydraulic rods (5) are arranged at two sides of the side plates (4) symmetrically.

3. A rail transit vehicle brake cushioning device as claimed in claim 1, wherein: the lower end of the wear-resistant block (8) is arc-shaped.

4. A rail transit vehicle brake cushioning device as claimed in claim 1, wherein: the buffer device comprises a sliding block (9), a fixing rod (10), a connecting block (11), a telescopic rod (12), a second spring (13), a rotating rod (14) and a mounting block (15), wherein the fixing rod (10) is fixed inside a side plate (4), the sliding block (9) is sleeved on the fixing rod (10) in a sliding mode, the lower end of the sliding block (9) is fixed on the connecting block (11), the rotating rod (14) is connected onto the connecting block (11) in a rotating mode, the lower end of the rotating rod (14) is connected with a bottom plate (7) in a rotating mode through the mounting block (15), the telescopic rod (12) is fixed on the inner side of the connecting block (11), and the second spring (13) is sleeved on the periphery of the telescopic rod (12).

5. A rail transit vehicle brake cushioning device as claimed in claim 1, wherein: one end of the first spring (6) is fixed on the fixed plate (3), and the other end is fixed on the bottom plate (7).

6. The rail transit vehicle brake cushioning device of claim 4, wherein: both ends of the second spring (13) are fixed on the connecting block (11).