CN218935102U

CN218935102U - Tread brake

Info

Publication number: CN218935102U
Application number: CN202320152385.8U
Authority: CN
Inventors: 李东跃; 王鑫; 杨磊; 高丽
Original assignee: Henan Province Wan'an Brake Co ltd
Current assignee: Henan Province Wan'an Brake Co ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-04-28
Anticipated expiration: 2033-01-13

Abstract

The utility model belongs to the technical field of brakes, and particularly relates to a tread brake, which comprises a shell, wherein a mounting channel is arranged in the shell, and a rectangular groove is arranged between the mounting channel and the inner wall of the shell; the push rod is arranged in the mounting channel and is in sliding connection with the shell, and the peripheral wall of the push rod is provided with a spiral guide groove along the length direction; the brake shoe is arranged outside the shell and connected with the end part of the push rod; the lubricating oil is stored in the oiling mechanism, the oiling mechanism is arranged in the shell, and the bottom of the oiling mechanism is communicated with the groove; the ejector block is arranged in the groove and connected with the peripheral wall of the push rod; after the push rod is acted by external force, the tread brake of the utility model realizes the filling of lubricating oil into the gap at the joint of the push rod and the shell by arranging the oiling mechanism, thereby reducing the sliding friction force between the push rod and the power seat, reducing the abrasion and ensuring the service life of the push rod and the shell.

Description

Tread brake

Technical Field

The utility model belongs to the technical field of brakes, and particularly relates to a tread brake.

Background

Tread braking is brake shoe braking adopted by railway rolling stock, and when in braking, the brake shoe holds the tread of a wheel tightly, and the wheel stops rotating through friction.

When the train is braked, the brake shoe is pressed against the tread by the brake cylinder, and the kinetic energy of the train is converted into heat energy by utilizing the friction force between the brake shoe and the tread so as to be dissipated into the atmosphere. In tread braking, the braking device converts the vast kinetic energy into heat energy which is dissipated into the atmosphere. The braking effect is mainly determined by the dissipation capacity of friction heat energy. When using this braking mode, the brake shoe friction area is small and most of the heat load is borne by the wheel.

The chinese patent with application number CN202121240529.2 discloses a tread brake, which comprises a housin, be equipped with mounting hole one on the casing, the mount pad, the slide hole, connecting hole one, be equipped with mounting hole two on the mount pad, connecting hole two, run through in mounting hole one and the mounting hole two and be equipped with the installation pole, the installation pole is connected with the brake block, be equipped with thrust step on the installation pole, be equipped with the slide bar in the slide hole, the slide bar passes through the connecting seat to be connected, be equipped with thrust bearing on the connecting seat, wear to be equipped with the guide bar in connecting hole one and the connecting hole two, be equipped with the ejector pad that can follow the casing and go up and down between slide bar and the guide bar, be equipped with on the ejector pad and be used for promoting the slide bar forward the inclined plane of leading on acting on the guide bar.

However, with further research of the applicant, it is found that in the technical scheme, because the brake shoe is pushed by the mounting rod to perform the braking operation, the mounting rod generates larger friction at the joint with the shell, the wear between the mounting rod and the shell is serious due to long-time use, the service life is reduced, the braking effect cannot be ensured, and the traditional lubricating oil filling mode is manual filling, so that the operation is also complicated.

Disclosure of Invention

In order to solve the technical problems, the utility model adopts the following technical scheme:

the tread brake comprises a shell, wherein a mounting channel is arranged in the shell, and a rectangular groove is arranged between the mounting channel and the inner wall of the shell;

the push rod is arranged in the mounting channel and is in sliding connection with the shell, and the peripheral wall of the push rod is provided with a spiral guide groove along the length direction;

the brake shoe is arranged outside the shell and connected with the end part of the push rod;

the lubricating oil is stored in the oiling mechanism, the oiling mechanism is arranged in the shell, and the bottom of the oiling mechanism is communicated with the groove;

the ejector block is arranged in the groove and connected with the peripheral wall of the push rod;

after the push rod is acted by external force, the push rod drives the ejector block to move in the shell, and the oiling mechanism is triggered, so that lubricating oil is injected into the spiral guide groove through the groove.

Further, the oiling mechanism comprises an oil accumulation cavity, an oil guide channel and a trigger component, wherein the oil accumulation cavity is formed in the shell, the trigger component is positioned in the oil guide channel and controls the oil guide channel to be communicated with and closed with the groove.

Further, the trigger part comprises a lantern ring connected to the lower port of the oil guide channel and an upper buckle plate connected to the oil accumulation cavity, and an oil sealing ball matched with the lantern ring is arranged in the lantern ring.

Further, a spring is arranged between the oil sealing ball and the upper pinch plate.

Further, the side of the top block along the moving direction is provided with an arc-shaped surface.

Further, an oil filling port is formed in the shell.

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

this tread stopper through setting up oiling mechanism, realizes adding annotating lubricating oil in the gap to push rod and casing junction, and then reduces the sliding friction force between push rod and the power seat, has reduced wearing and tearing, guarantees the life-span of push rod and casing, guarantees the braking effect, and this device need not many times manual filling, has alleviateed work load, has saved the manpower.

Drawings

FIG. 1 is a schematic front view of an embodiment of a tread brake according to the present utility model;

FIG. 2 is a schematic view of the internal structure of an embodiment of a tread brake according to the present utility model;

reference numerals in the drawings of the specification include:

the device comprises a shell 1, a mounting channel 10, a rectangular groove 11, an oil filling port 12, a push rod 2, a spiral guide groove 20, a top block 21, an arc-shaped surface 210, an oil accumulation cavity 30, an oil guide channel 31, a collar 320, an upper pinch plate 321, an oil sealing ball 322, a spring 323 and a brake shoe 4.

Detailed Description

In order that those skilled in the art will better understand the present utility model, the following technical scheme of the present utility model will be further described with reference to the accompanying drawings and examples.

Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted, and that like or similar reference numerals in the drawings correspond to like or similar components in the embodiments of the present utility model; in the description of the present utility model, it should be understood that, if the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, rather than indicating or implying that the apparatus or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and should not be construed as limiting the present patent, and that the specific meaning of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances.

Examples:

1-2, the tread brake of the utility model comprises a shell 1, wherein an oil filling port 12 is arranged on the shell 1, a mounting channel 10 is arranged in the shell 1, and a rectangular groove 11 is arranged between the mounting channel 10 and the inner wall of the shell 1;

the push rod 2 is arranged in the mounting channel 10 and is in sliding connection with the shell 1, and a spiral guide groove 20 is formed in the peripheral wall of the push rod 2 along the length direction; wherein, the brake shoe 4 is arranged outside the shell 1 and is connected with the end part of the push rod 2;

the oiling mechanism is arranged in the shell 1, lubricating oil is stored in the oiling mechanism, and the bottom of the oiling mechanism is communicated with the groove;

the ejector block 21 is arranged in the groove and is connected with the peripheral wall of the push rod 2, specifically, when the push rod 2 pushes the brake shoe 4 to brake after moving, the push rod 2 drives the ejector block 21 to slide in the rectangular groove 11, and the side part of the ejector block 21 along the moving direction is provided with an arc-shaped surface 210;

according to the tread brake, by arranging the oiling mechanism, lubricating oil is added into a gap at the joint of the push rod 2 and the shell 1, so that sliding friction force between the push rod 2 and the power seat is reduced, abrasion is reduced, the service lives of the push rod 2 and the shell 1 are ensured, a braking effect is ensured, the device does not need to be manually filled for a plurality of times, and labor is saved;

after the push rod 2 is acted by external force, the push rod 2 drives the top block 21 to move in the shell 1, and the oiling mechanism is triggered, so that lubricating oil is injected into the spiral guide groove 20 through the groove.

The oiling mechanism comprises an oil accumulation cavity 30, an oil guide channel 31 and a trigger component, wherein the oil accumulation cavity 30, the oil guide channel 31 and the trigger component are arranged in the oil guide channel 31, and the trigger component controls the oil guide channel 31 to be communicated with and closed with the groove.

Specifically, the triggering component includes a collar 320 connected to the lower port of the oil guide channel 31, an upper pinch plate 321 connected to the oil accumulation cavity 30, a matched oil sealing ball 322 is disposed in the collar 320, a spring 323 is further disposed between the oil sealing ball 322 and the upper pinch plate 321, the upper end of the spring 323 is connected to the upper pinch plate 321, when the arc surface 210 of the top block 21 abuts against the oil sealing ball 322, the oil sealing ball 322 is pushed to move upwards and compress the spring 323, when the oil sealing ball 322 moves upwards, the collar 320 is separated from the arc surface 210 and a gap is generated between the collar 320, lubricating oil in the oil accumulation cavity 30 can enter the groove through oil guide and the gap generated between the oil sealing ball 322 and the top block 21, oiling lubrication is performed on the gap between the push rod 2 and the shell 1, after the top block 21 is separated from the oil sealing ball 322, the spring 323 is pushed in the original length process, when the oil sealing ball 322 moves downwards, and after the collar 322 is tightly combined with the collar 320, the oiling lubrication is stopped.

In addition, the spiral guide groove 20 is formed in the periphery of the push rod 2, so that the guided lubricating oil can be uniformly distributed on the outer wall of the push rod 2, and particularly, the situation that the lubricating oil only stays on one side close to the groove and the outer wall of the push rod 2 on the side away from the groove cannot be acted on by the lubricating oil in the transverse movement of the push rod 2 is avoided.

The foregoing is merely exemplary of the present utility model, and the specific structures and features well known in the art are not described in any way herein, so that those skilled in the art will be able to ascertain all prior art in the field, and will not be able to ascertain any prior art to which this utility model pertains, without the general knowledge of the skilled person in the field, before the application date or the priority date, to practice the present utility model, with the ability of these skilled persons to perfect and practice this utility model, with the help of the teachings of this application, with some typical known structures or methods not being the obstacle to the practice of this application by those skilled in the art. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent.

Claims

1. A tread brake, comprising:

the shell is internally provided with a mounting channel, and a rectangular groove is arranged between the mounting channel and the inner wall of the shell;

2. The tread brake as claimed in claim 1, wherein: the oiling mechanism comprises an oil accumulation cavity, an oil guide channel and a trigger component, wherein the oil accumulation cavity is formed in the shell, the trigger component is positioned in the oil guide channel, and the trigger component controls the oil guide channel to be communicated with and closed with the groove.

3. The tread brake as claimed in claim 2 wherein: the trigger part comprises a lantern ring connected to the lower port of the oil guide channel and an upper buckle plate connected to the oil accumulation cavity, and an oil sealing ball matched with the lantern ring is arranged in the lantern ring.

4. A tread brake according to claim 3, wherein: and a spring is further arranged between the oil sealing ball and the upper pinch plate.

5. The tread brake as claimed in claim 1, wherein: the side part of the top block along the moving direction is provided with an arc-shaped surface.

6. The tread brake as claimed in claim 1, wherein: an oil filling port is arranged on the shell.