Rubber part of automatic adjusting device for empty and load valves of railway wagon

Abstract

The utility model relates to the technical field of automatic adjustment of empty and load valves of railway wagons, and discloses a rubber part of an automatic adjustment device of the empty and load valves of the railway wagons, which comprises a sealing rubber ring, a mounting cavity is arranged in the sealing rubber ring, and reinforcing ribs are mounted in the mounting cavity on the sealing rubber ring. A first mounting groove is formed in the outer side wall of the sealing rubber ring, a check ring is mounted in the first mounting groove in the sealing rubber ring, a second mounting groove is formed in the inner side wall of the sealing rubber ring, a wear-resistant ring is mounted in the second mounting groove in the sealing rubber ring, the check ring is made of a thin-wall silica gel sheath, and the wear-resistant ring is made of a wear-resistant material. And the wear-resistant ring is made of a nylon material. By arranging the first mounting groove and the check ring, the check ring automatically retracts into the groove after being assembled, the sealing rubber ring is prevented from being easily sheared by a sharp edge on an assembling path, and the check ring can be repeatedly used, so that the scratch rate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway freight car empty heavy car valve automatic regulation technical field, concretely is a kind of railway freight car empty heavy car valve automatic regulation device rubber part. BACKGROUND

[0002] Railway empty heavy car valve automatic regulation refers to the output pressure of brake system is automatically regulated according to the change of vehicle load to ensure the optimization of braking effect under different load conditions.This regulation mechanism is mainly realized by empty heavy car automatic adjustment device, and the pressure of brake cylinder is automatically regulated according to the change of vehicle load, so as to adapt to different braking requirements.Sealing ring rubber part is one of the components of empty heavy car valve automatic regulation device.

[0003] The existing railway freight car empty heavy car valve automatic regulation device rubber part is easy to shear the sealing rubber ring on the assembly path when in use, so that the scratch rate of the sealing rubber ring is high, and the reciprocating motion can easily cause one-sided severe wear of the sealing rubber ring, thereby shortening the service life.In addition, the sealing rubber ring has weak structural strength, so it is not suitable for some high support strength working environments, and therefore there is an urgent need for a railway freight car empty heavy car valve automatic regulation device rubber part to solve the above technical problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a railway freight car empty heavy car valve automatic regulation device rubber part to solve the problem of the existing railway freight car empty heavy car valve automatic regulation device rubber part in the above background technology, which is easy to shear the sealing rubber ring on the assembly path when in use, so that the scratch rate of the sealing rubber ring is high, and the reciprocating motion can easily cause one-sided severe wear of the sealing rubber ring, thereby shortening the service life.In addition, the sealing rubber ring has weak structural strength, so it is not suitable for some high support strength working environments.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A railway freight car empty heavy car valve automatic regulation device rubber part includes a sealing rubber ring, an installation chamber is arranged in the sealing rubber ring, a reinforcing rib is installed in the installation chamber of the sealing rubber ring, a first installation groove is formed on the outer wall of the sealing rubber ring, a check ring is installed in the first installation groove of the sealing rubber ring, a second installation groove is formed on the inner wall of the sealing rubber ring, and a wear-resistant ring is installed in the second installation groove of the sealing rubber ring.

[0007] As a preferred technical scheme of the utility model, the material of the check ring is thin-walled silica gel sheath.

[0008] As a preferred technical scheme of the utility model, the wear-resistant ring is made of nylon material.

[0009] As a preferred technical scheme of the utility model, the reinforcing rib is a metal ring.

[0010] As a preferred technical scheme of the utility model, the mounting mode between the retaining ring and the sealing rubber ring is detachable.

[0011] As a preferred technical scheme of the utility model, the connecting mode between the wear-resistant ring and the sealing rubber ring is fixed connection.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model discloses a first installation groove and a retaining ring are arranged, so that the retaining ring is automatically retracted into the groove after assembly, the sharp edge on the assembly path is prevented from easily shearing the sealing rubber ring, the retaining ring can be repeatedly used, and the scratch rate is reduced.

[0014] 2. The utility model discloses a wear-resistant ring and a second installation groove are arranged, the mutual cooperation between them is utilized, so that the one-side wear of the sealing rubber ring caused by reciprocating motion is prevented from being aggravated, the service life is prolonged, and in addition, a reinforcing rib is arranged in the sealing rubber ring, so that the structural strength is improved, and the utility model is suitable for some high-support-strength working environments. BRIEF DESCRIPTION OF DRAWINGS

[0015] Other characteristics, objects and advantages of the application will become more apparent from the following detailed description of non-restrictive embodiments, made with reference to the attached drawings:

[0016] Fig. 1 It is a sectional view of the whole structure of the utility model;

[0017] Fig. 2 It is a structure schematic view of the utility model after removing the wear-resistant ring and the retaining ring;

[0018] Fig. 3 It is a structure schematic view of the sealing rubber ring, the second installation groove and the first installation groove of the utility model.

[0019] In the drawing: 1, sealing rubber ring; 2, reinforcing rib; 3, second installation groove; 4, wear-resistant ring; 5, retaining ring; 6, installation chamber; 7, first installation groove. DETAILED DESCRIPTION

[0020] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the application, and not to limit the application. In addition, it should be noted that only parts related to the application are shown in the drawings for ease of description, and the different types of cross-sectional lines in the drawings are not marked according to the national standard, nor do they require the material of the element, but they are distinguished from the cross-sectional view of the element in the drawings.

[0021] Please refer to Figs. 1-3 The rubber part of the automatic adjusting device for the empty and loaded car valve of a railway freight car comprises a sealing rubber ring 1, an installation chamber 6 is arranged in the sealing rubber ring 1, a reinforcing rib 2 is arranged in the installation chamber 6 of the sealing rubber ring 1, a first installation groove 7 is formed in the outer side wall of the sealing rubber ring 1, a check ring 5 is arranged in the first installation groove 7 of the sealing rubber ring 1, a second installation groove 3 is formed in the inner side wall of the sealing rubber ring 1, and a wear-resistant ring 4 is arranged in the second installation groove 3 of the sealing rubber ring 1, so that unilateral wear of the sealing rubber ring 1 caused by reciprocating motion can be avoided, and the service life is prolonged.

[0022] The check ring 5 is made of a thin-wall silica gel sheath, so that the check ring 5 is automatically retracted into the groove after assembly, the sharp edges on the assembly path are prevented from easily shearing the sealing rubber ring 1, and the check ring 5 can be repeatedly used, thereby reducing the scratching rate.

[0023] The wear-resistant ring 4 is made of nylon material.

[0024] The reinforcing rib 2 is a metal ring, the reinforcing rib 2 is arranged in the sealing rubber ring 1, the structural strength is improved, and the reinforcing rib 2 is suitable for some high-support-strength working environments.

[0025] The installation mode between the check ring 5 and the sealing rubber ring 1 is detachable.

[0026] The connection mode between the wear-resistant ring 4 and the sealing rubber ring 1 is fixed connection.

[0027] The working principle and use process of the application are as follows: during installation, the check ring 5 is automatically retracted into the first installation groove 7 after assembly, the sharp edges on the assembly path are prevented from easily shearing the sealing rubber ring 1, the check ring 5 can be repeatedly used, thereby reducing the scratching rate, the wear-resistant ring 4 and the second installation groove 3 are arranged, the wear-resistant ring 4 made of nylon material can prevent unilateral wear of the sealing rubber ring 1 caused by reciprocating motion, thereby prolonging the service life, the reinforcing rib 2 is arranged in the sealing rubber ring 1, the reinforcing rib 2 is a metal ring, the structural strength is improved, and the reinforcing rib 2 is suitable for some high-support-strength working environments, and the contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0028] The above description is merely that of the preferred embodiments of the application and of the principles thereof. It is to be understood that the present application is not limited to the specific technical features described above and that many modifications, changes, and substitutions can be made by those skilled in the art without departing from the spirit of the application. For example, the technical features described above can be replaced with other technical features having similar functions disclosed in the present application (but not limited to) to form other technical solutions.

Claims

1. A rubber component for an automatic adjustment device of empty and loaded car valves for railway freight cars, comprising a sealing rubber ring (1), characterized in that: The sealing rubber ring (1) has an installation chamber (6) inside. A reinforcing rib (2) is installed in the installation chamber (6) of the sealing rubber ring (1). A first installation groove (7) is opened on the outer side wall of the sealing rubber ring (1). A retaining ring (5) is installed in the first installation groove (7) of the sealing rubber ring (1). A second installation groove (3) is opened on the inner side wall of the sealing rubber ring (1). A wear-resistant ring (4) is installed in the second installation groove (3) of the sealing rubber ring (1).

2. The rubber component of the automatic adjustment device for empty and loaded car valves of railway freight cars according to claim 1, characterized in that: The retaining ring (5) is made of thin-walled silicone sheath.

3. The rubber component of the automatic adjustment device for empty and loaded car valves of railway freight cars according to claim 1, characterized in that: The wear-resistant ring (4) is made of nylon material.

4. The rubber component of the automatic adjustment device for empty and loaded car valves of railway freight cars according to claim 1, characterized in that: The reinforcing rib (2) is a metal ring.

5. The rubber component of the automatic adjustment device for empty and loaded car valves of railway freight cars according to claim 1, characterized in that: The installation method between the retaining ring (5) and the sealing rubber ring (1) is detachable.

6. The rubber component of the automatic adjustment device for empty and loaded car valves of railway freight cars according to claim 1, characterized in that: The connection between the wear-resistant ring (4) and the sealing rubber ring (1) is a fixed connection.

Images