Supporting seat for air spring of bogie of motor train unit

Abstract

The utility model relates to the technical field of supporting seats for air springs, in particular to a supporting seat for an air spring of a bogie of a motor train unit, which comprises an air spring body, a plurality of first supporting columns are annularly arranged on the upper surface of the supporting seat, the upper ends of the first supporting columns extend into first column grooves, and a plurality of second supporting columns are annularly arranged on the lower surface of an inner retaining ring. The lower end of the second supporting column extends into the second column groove, and a plurality of radial first reinforcing ribs and a plurality of annular second reinforcing ribs are arranged on the lower surface of the supporting base. According to the air spring, the first supporting column is matched with the first column groove, and the second supporting column is matched with the second column groove, so that the effect of preventing the supporting seat and the inner retaining ring from rotating relatively is achieved, and the fastener is prevented from being stressed greatly; and through the arrangement of the first reinforcing rib and the second reinforcing rib, the supporting seat is reinforced, and the service life of the air spring is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to air spring support seat technical field, especially air spring support seat for motor train unit bogie. BACKGROUND

[0002] Air spring is filled with compressed air in a sealed container, and the elasticity is realized by using the compressibility of gas. Air spring has ideal nonlinear elastic characteristics. After installing height adjusting device, the height of the vehicle body does not change with the increase and decrease of load, the spring stiffness can be designed to be lower, and the ride comfort is good.

[0003] For example, the authorized announcement number "CN107131243B" is named air spring, and the structure of the elastic inner bag is added on the basis of the elastic outer bag, which solves the double aspects of installation space and damping performance of the space-limited vehicle body.

[0004] The above and prior art have the following defects: the support seat and the inner buckle ring of the air spring are not provided with a reinforcing device for preventing relative rotation, so that the fastening piece for fixing the support seat and the inner buckle ring bears a large force; because the support seat of the air spring bears a large force, no reinforcement treatment is carried out, which affects the service life of the air spring. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the defects in the prior art and provides air spring support seat for motor train unit bogie.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The air spring support seat for motor train unit bogie is designed, which comprises an air spring body, the air spring body comprises a support seat and a matched inner buckle ring, a plurality of first struts are arranged in a ring shape on the upper surface of the support seat, a plurality of first column grooves corresponding to the first struts are arranged in a ring shape on the lower surface of the inner buckle ring, the upper ends of the first struts extend into the first column grooves, a plurality of second struts are arranged in a ring shape on the lower surface of the inner buckle ring, a plurality of second column grooves corresponding to the second struts are arranged in a ring shape on the upper surface of the support seat, the lower ends of the second struts extend into the second column grooves, a plurality of mounting grooves are arranged in a ring shape on the upper surface of the support seat, a plurality of radial first reinforcing ribs and a plurality of annular second reinforcing ribs are arranged on the lower surface of the support seat, a plurality of fastening pieces are arranged above the inner buckle ring, and the lower ends of the plurality of fastening pieces all penetrate the inner buckle ring and are screw-connected with the mounting grooves.

[0008] Preferably, a plurality of wear-resistant blocks are arranged in a ring shape on the upper surface of the inner buckle ring.

[0009] Preferably, the inner buckle ring upper surface is provided with a plurality of counter sunk grooves corresponding to the fasteners, the fastener upper portion is arranged in the counter sunk groove, the fastener upper surface is provided with an internal hexagonal groove, and the internal hexagonal groove is a regular hexagon in cross section.

[0010] Preferably, the support seat inner wall is a first side portion, and the first side portion is chamfered.

[0011] Preferably, the support seat outer surface is a second side portion, the second side portion is chamfered, and a corner portion is arranged at a corner of the support seat outer surface, and the corner portion is chamfered.

[0012] Preferably, the support seat inner wall of one side near the inner buckle ring is annularly provided with a plurality of convex ribs, the inner buckle ring surface of one side near the support seat is annularly provided with a plurality of positioning grooves, the plurality of convex ribs correspond to the plurality of positioning grooves in one-to-one correspondence, and the convex ribs extend into the positioning grooves.

[0013] The air spring support seat for the bogie of the motor train unit has the advantages that: the first support column and the first column groove are matched, and the second support column and the second column groove are matched, the relative rotation of the support seat and the inner buckle ring is prevented, and the stress of the fastener is avoided; the first reinforcing rib and the second reinforcing rib are arranged to reinforce the support seat, and the service life of the air spring is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the utility model;

[0015] Figure 2 It is an A position enlarged view of the utility model;

[0016] Figure 3 It is a structure schematic view in plan of the support seat and the inner buckle ring of the utility model;

[0017] Figure 4 It is a B position enlarged view of the utility model;

[0018] Figure 5 It is a structure schematic view in elevation of the support seat and the inner buckle ring of the utility model;

[0019] Figure 6 It is a C position enlarged view of the utility model.

[0020] In the drawing: air spring body 1, support seat 2, first support column 201, second column groove 202, mounting groove 203, first reinforcing rib 204, second reinforcing rib 205, inner buckle ring 3, first column groove 301, second support column 302, fastener 4, wear-resistant block 5, counter sunk groove 6, internal hexagonal groove 7, first side portion 8, corner portion 9, second side portion 10, convex rib 11, positioning groove 12. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0022] Referring to Figures 1-6 The supporting seat 2 upper surface annularly is equipped with a plurality of first support posts 201, the inner buckle ring 3 lower surface annularly is equipped with a plurality of first column grooves 301 corresponding to the first support posts 201 one by one, and the first support posts 201 upper end extends into the first column grooves 301, the inner buckle ring 3 lower surface annularly is equipped with a plurality of second support posts 302, the supporting seat 2 upper surface annularly is equipped with a plurality of second column grooves 202 corresponding to the second support posts 302 one by one, and the second support posts 302 lower end extends into the second column grooves 202, the first support posts 201 and the first column grooves 301 of the present air spring are matched, and the second support posts 302 and the second column grooves 202 are matched, which plays a role of preventing the relative rotation of the supporting seat 2 and the inner buckle ring 3, and avoids the large stress on the fastener 4. The supporting seat 2 upper surface annularly is equipped with a plurality of mounting grooves 203, and the supporting seat 2 lower surface is equipped with a plurality of radial first reinforcing ribs 204 and a plurality of annular second reinforcing ribs 205, the first reinforcing ribs 204 and the second reinforcing ribs 205 are arranged to reinforce the supporting seat 2, thereby prolonging the service life of the present air spring. The inner buckle ring 3 upper surface is equipped with a plurality of fasteners 4, and the lower end of the plurality of fasteners 4 penetrates the inner buckle ring 3 and is threadedly connected with the mounting grooves 203.

[0023] The inner buckle ring 3 upper surface annularly is equipped with a plurality of wear-resistant blocks 5, and the upper end section of the plurality of wear-resistant blocks 5 is arc-shaped. When the air spring leaks, the upper end of the present air spring does not directly contact the inner buckle ring 3, but contacts the wear-resistant block 5 with the arc-shaped upper end section, and the friction between the two is small, so the lateral force generated on the vehicle is small, thereby avoiding the problem of vehicle derailment caused by excessive lateral force.

[0024] The inner buckle ring 3 upper surface is equipped with a plurality of countersunk grooves 6 corresponding to the fasteners 4 one by one, the fastener 4 upper portion is arranged in the countersunk groove 6, the fastener 4 upper surface is equipped with an internal hexagonal groove 7, and the section of the internal hexagonal groove 7 is a regular hexagon. The internal hexagonal groove 7 can be operated by a professional tool, i.e., an internal hexagonal wrench.

[0025] The supporting seat 2 inner wall is a first side portion 8, and the first side portion 8 is chamfered. This avoids scratching the air bag of the present air spring by the supporting seat 2.

[0026] The outer surface of the support base 2 is a second side 10, which is rounded, and the corner of the outer surface of the support base 2 is a corner 9, which is rounded. Thus, the air bag of the air spring is prevented from being scratched by the support base 2.

[0027] The inner wall of the side of the support base 2 close to the inner buckle ring 3 is annularly provided with a plurality of convex ribs 11, and the surface of the side of the inner buckle ring 3 close to the support base 2 is annularly provided with a plurality of positioning grooves 12. The plurality of convex ribs 11 correspond to the plurality of positioning grooves 12 one by one, and the convex ribs 11 extend into the positioning grooves 12. The convex ribs 11 and the positioning grooves 12 are arranged to prevent the support base 2 and the inner buckle ring 3 from rotating relative to each other, so that the fastener 4 is prevented from being subjected to a large force.

[0028] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, and all of them should be covered within the protection scope of the present application.

Claims

1. A support seat for air spring of a bogie of a motor train unit, comprising an air spring body (1), characterized in that, The air spring body (1) comprises a supporting seat (2) and a matched inner buckle ring (3), the upper surface of the supporting seat (2) is annularly provided with a plurality of first supporting columns (201), the lower surface of the inner buckle ring (3) is annularly provided with a plurality of first column grooves (301) corresponding to the first supporting columns (201) one by one, the upper end of the first supporting column (201) extends into the first column groove (301), the lower surface of the inner buckle ring (3) is annularly provided with a plurality of second supporting columns (302), the upper surface of the supporting seat (2) is annularly provided with a plurality of second column grooves (202) corresponding to the second supporting columns (302) one by one, the lower end of the second supporting column (302) extends into the second column groove (202), the upper surface of the supporting seat (2) is annularly provided with a plurality of mounting grooves (203), the lower surface of the supporting seat (2) is provided with a plurality of radial first reinforcing ribs (204) and a plurality of annular second reinforcing ribs (205), the upper side of the inner buckle ring (3) is provided with a plurality of fasteners (4), the lower end of each of the plurality of fasteners (4) penetrates the inner buckle ring (3) and is threadedly connected with the mounting groove (203).

2. The support seat for air springs of a motor train unit bogie according to claim 1, characterized in that, The upper surface of the inner buckle ring (3) is annularly provided with a plurality of wear-resistant blocks (5).

3. The support seat for air springs of a motor train unit bogie according to claim 2, characterized in that, The upper surface of the inner buckle ring (3) is provided with a plurality of countersunk grooves (6) corresponding to the fasteners (4) one by one, the upper part of the fastener (4) is arranged inside the countersunk groove (6), the upper surface of the fastener (4) is provided with an inner hexagonal groove (7), and the cross section of the inner hexagonal groove (7) is a regular hexagon.

4. The support seat for air springs of a motor train unit bogie according to claim 1, characterized in that, The inner wall of the supporting seat (2) is a first side portion (8), and the first side portion (8) is chamfered.

5. The support seat for air springs of a motor train unit bogie according to claim 1, characterized in that, The outer surface of the supporting seat (2) is a second side portion (10), the second side portion (10) is chamfered, and the corner of the outer surface of the supporting seat (2) is a corner portion (9), and the corner portion (9) is chamfered.

6. The support seat for an air spring of a motor train unit bogie according to claim 1, characterized by The inner wall of the side of the supporting seat (2) close to the inner buckle ring (3) is annularly provided with a plurality of convex ribs (11), the surface of the side of the inner buckle ring (3) close to the supporting seat (2) is annularly provided with a plurality of positioning grooves (12), the plurality of convex ribs (11) correspond to the plurality of positioning grooves (12) one by one, and the convex rib (11) extends into the positioning groove (12).

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