CN113753091A

CN113753091A - Brake hanging seat and bogie

Info

Publication number: CN113753091A
Application number: CN202111131449.8A
Authority: CN
Inventors: 王晓明; 孙厚礼; 肖鹏; 王海波; 王松
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2021-12-07
Anticipated expiration: 2041-09-26
Also published as: CN113753091B

Abstract

The invention discloses a brake hanging seat and a bogie, wherein the bogie comprises the brake hanging seat, the brake hanging seat comprises a metal core body and a carbon fiber body, and the carbon fiber body comprises a main body part arranged on the periphery of the metal core body and an extension part extending from the main body part to the direction far away from the metal core body; the extension part is provided with a first connecting hole for connecting the brake clamp; and one axial end of the metal core body is provided with a second connecting hole for connecting a side beam of the bogie. The carbon fiber core body comprises an annular carbon fiber layer and sheet carbon fiber layers, wherein the annular carbon fiber layer is arranged on the peripheral surface of the metal core body in a surrounding mode, the sheet carbon fiber layers are arranged on the top side and the bottom side of the annular carbon fiber layer in a laying mode, and two ends of the sheet carbon fiber layer on the top side and two ends of the sheet carbon fiber layer on the bottom side are connected together in a laying mode. The sheet-shaped carbon fiber layer at the topmost side is provided with a convex rib protruding towards the top side. The brake hanging seat has the advantages of light weight, small volume, convenience in installation, higher structural strength and higher bearing capacity.

Description

Brake hanging seat and bogie

Technical Field

The invention relates to the technical field of railway vehicles, in particular to a braking hanging seat of a railway vehicle and a bogie comprising the same.

Background

The brake hanging seat is an important bearing part of the railway vehicle, is connected with the brake clamp and bears braking force. The design of the brake hanging seat is limited by the installation space and the bearing requirement of high load.

Therefore, how to ensure that the brake hanging seat meets the requirements of installation space and bearing is a technical problem to be solved by technical personnel in the field.

Disclosure of Invention

In order to solve the technical problem, the invention provides a brake hanging seat which comprises a metal core body and a carbon fiber body, wherein the carbon fiber body comprises a main body part wound on the periphery of the metal core body and an extension part extending from the main body part to the direction far away from the metal core body; the extension part is provided with a first connecting hole for connecting the brake clamp; and one axial end of the metal core body is provided with a second connecting hole for connecting a side beam of the bogie.

In one embodiment, the metal core includes a hollow bush and an end plate that blocks one end of the hollow bush in the axial direction, and the second connection hole is provided in the end plate.

In one embodiment, the carbon fiber body includes an annular carbon fiber layer laid around the outer peripheral surface of the metal core.

In one embodiment, the carbon fiber body further comprises a sheet-like carbon fiber layer; the middle part of the flaky carbon fiber layer is laid on the peripheral surface of the annular carbon fiber layer and forms the main body part together with the annular carbon fiber layer; two ends of the flaky carbon fiber layer extend towards the direction far away from the metal core body to form two extending parts respectively.

In one embodiment, the annular carbon fiber layer is provided with a sheet-shaped carbon fiber layer on both the top side and the bottom side, and both ends of the sheet-shaped carbon fiber layer on the top side and both ends of the sheet-shaped carbon fiber layer on the bottom side are connected together.

In one embodiment, the periphery of the metal core body is provided with a top plane, a side plane, a bottom plane and an inclined plane which are smoothly connected end to end, the top plane and the bottom plane are parallel, the side plane is perpendicular to the top plane, and the inclined plane forms an included angle with the top plane; the middle parts of the flaky carbon fiber layers on the top sides are laid on the top plane and the side planes, and the middle parts of the flaky carbon fiber layers on the bottom sides are laid on the bottom plane and the inclined planes.

In one embodiment, both ends of the sheet-like carbon fiber layer on the top side and both ends of the sheet-like carbon fiber layer on the bottom side extend in a direction parallel to the top plane.

In one embodiment, the top-most sheet-like carbon fiber layer is provided with a rib protruding toward the top side.

In one embodiment, the extension portion includes two extension arms spaced apart from each other in an axial direction of the metal core, and the rib is connected between the two extension arms.

In addition, the invention also provides a bogie which comprises a brake clamp, a side beam and a brake hanging seat, wherein the brake hanging seat adopts any one of the brake hanging seats.

The brake hanging seat provided by the invention has the advantages of light weight, small volume, convenience in installation, higher structural strength and higher bearing capacity. Accordingly, a bogie employing the brake spider also has the same advantages.

Drawings

FIG. 1 is a perspective view of a brake hanger provided by the present invention;

fig. 2 is a half sectional view of fig. 1.

The reference numerals are explained below:

1, a metal core body, 11 hollow bushings, 12 end plates, 1a top plane, 1b side planes, 1c bottom planes and 1d inclined planes;

2 carbon fiber body, 21 annular carbon fiber layer, 22 sheet carbon fiber layer and 221 convex rib;

the main body part A, the extension part B and the extension arm B1.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution of the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.

As shown, the brake spider comprises a metal core 1 and a carbon fibre body 2.

The carbon fiber body 2 includes a main body portion a and an extension portion B, the main body portion a is provided at the periphery of the metal core body 1, and the extension portion B extends from the main body portion a to a direction away from the metal core body 1.

The extension part B is provided with a first connecting hole. The first connecting hole may be a threaded hole matched with the bolt, or may be a through hole for the bolt to pass through. In the applied state, the brake caliper is attached to the first connection bore by a threaded fastener.

One axial end of the metal core body 1 is provided with a second connecting hole. The second connecting hole can be a threaded hole matched with the bolt, and can also be a through hole for the bolt to pass through. In the application state, the metal core 1 is connected to the side beam of the bogie through the second connecting hole and the threaded fastener.

The brake hanging seat with the structure has the advantages of light weight, small volume, convenient installation, higher structural strength and bearing capacity, and capability of fully meeting the bearing requirement.

In the illustrated embodiment, the metal core 1 includes a hollow liner 11 and an end plate 12. The hollow bush 11 serves as a laying foundation for the carbon fiber body 2, that is, the carbon fiber body 2 is laid on the hollow bush 11, and the hollow structure is more favorable for reducing weight.

The end plate 12 is sealed at one end of the hollow lining 11 to close one end of the hollow lining 11, and the end plate 12 and the hollow lining 11 may be an integral structure. The second connecting holes are formed in the end plate 12, so that the brake hanging seat and the side beam are connected conveniently, and the connection reliability of the brake hanging seat and the side beam can be guaranteed.

The carbon fiber body 2 is formed by laying a plurality of carbon fiber layers. In the illustrated embodiment, the carbon fiber body 2 includes an annular carbon fiber layer 21 and a sheet carbon fiber layer 22, and the combination of the annular carbon fiber layer 21 and the sheet carbon fiber layer 22 can better ensure the structural strength and the load-bearing capacity of the brake hanger.

In the illustrated embodiment, a layer of annular carbon fiber layer 21 and three layers of sheet carbon fiber layers 22 are provided, and it should be noted that, in actual implementation, the number of the annular carbon fiber layer 21 and the number of the sheet carbon fiber layers 22 may be flexibly adjusted according to actual needs.

As shown in the figure, the annular carbon fiber layer 21 is laid around the outer peripheral surface of the metal core 1, and is closed along the outer peripheral surface of the metal core 1. The ring-like shape is a circumferentially closed hollow shape, and is not particularly limited to a circular ring.

As shown in the drawing, the middle portion of the sheet-like carbon fiber layer 22 is laid on the outer peripheral surface of the annular carbon fiber layer 21, and forms the main body portion a together with the annular carbon fiber layer 21. Both end portions of the sheet-like carbon fiber layer 22 extend in a direction away from the metal core 1 to form the two extending portions B. It should be noted that, the middle part is referred to as the opposite end part, and any position between the two end parts may be the middle part, not particularly referring to the central position.

The top side and the bottom side of the annular carbon fiber layer 21 are both provided with sheet-shaped carbon fiber layers 22, in the figure, the top side is provided with two sheet-shaped carbon fiber layers 22, and the bottom side is provided with one sheet-shaped carbon fiber layer 22.

Both ends of the top sheet-like carbon fiber layer 22 are laid together with both ends of the bottom sheet-like carbon fiber layer 22. That is, in the view of fig. 2, the left end of the top sheet-like carbon fiber layer 22 is bonded to the left end of the bottom sheet-like carbon fiber layer 22, and the right end of the top sheet-like carbon fiber layer 22 is bonded to the right end of the bottom sheet-like carbon fiber layer 22.

The flaky carbon fiber layers 22 are laid on the top side and the bottom side of the annular elastic fiber layer, and the two ends of the flaky carbon fiber layer 22 on the top side and the two ends of the flaky carbon fiber layer 22 on the bottom side are connected together in a laying mode.

In the illustrated embodiment, the periphery of the metal core 1 is provided with a top plane 1a, a side plane 1b, a bottom plane 1c and an inclined plane 1d which are smoothly connected end to end, the top plane 1a is parallel to the bottom plane 1c, the side plane 1b is perpendicular to the top plane 1a, and the inclined plane 1d forms an included angle with the top plane 1 a. The width of the bottom plane 1c is relatively small and smaller than the width of the top plane 1a, so that the cross-section of the hollow bush 11 is substantially triangular. By such a design, not only can the metal core 1 itself be ensured to have a high structural strength, but also the main body portion a formed by laying can be made to be substantially triangular, so that the carbon fiber body 2 itself can also have a high structural strength.

Specifically, as shown in the figure, the middle part of the top sheet-like carbon fiber layer 22 may be laid on the top plane 1a and the side plane 1b, and the middle part of the bottom sheet-like carbon fiber layer 22 may be laid on the bottom plane 1c and the inclined plane 1d, so that the whole circumference of the annular carbon fiber layer 21 is basically laid by the sheet-like carbon fiber layer 22, and the strength of the whole circumference can be ensured.

As shown in the figure, the extending directions of the two ends of the top sheet-like carbon fiber layer 22 and the two ends of the bottom sheet-like carbon fiber layer 22 are both parallel to the top plane 1a, so that the two extending parts B are designed to be substantially parallel, which is convenient for connecting the brake clamp and can ensure the linear transmission of the braking force, thereby ensuring that the stress state of the brake hanging seat is better.

As shown in the figure, the top-most sheet-like carbon fiber layer 22 is provided with a rib 221 protruding toward the top side, and the structural strength and the load-bearing capacity of the brake hanger can be further enhanced by providing the rib 221. The rib 221 may be formed by inserting an air bag at a predetermined position during the laying process.

The extension part B may be provided with two extension arms B1, the two extension arms B1 are spaced from each other along the axial direction of the metal core 1, the rib 221 is connected between the two extension arms B1, the cross-sectional area of the rib 221 may be substantially U-shaped, and two vertical parts of the U-shape are respectively connected to the two extension arms B1. Design like this, can further reduce the weight of braking hanging seat, and can ensure structural strength.

In addition, the invention also provides a bogie which comprises a brake clamp, a side beam and a brake hanging seat, wherein the brake hanging seat adopts the brake hanging seat.

The brake hanger and the bogie provided by the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The brake hanging seat is characterized by comprising a metal core body (1) and a carbon fiber body (2), wherein the carbon fiber body (2) comprises a main body part (A) arranged on the periphery of the metal core body (1) and an extension part (B) extending from the main body part (A) to the direction far away from the metal core body (1); the extension part (B) is provided with a first connecting hole for connecting a brake clamp; and one axial end of the metal core body (1) is provided with a second connecting hole for connecting a side beam of the bogie.

2. A brake spider according to claim 1, wherein the metal core comprises a hollow bush (11) and an end plate (12), the end plate (12) being plugged at one axial end of the hollow bush (11), the second connection hole being provided in the end plate (12).

3. A brake spider according to claim 1 or 2, wherein the carbon fibre body (2) comprises an annular carbon fibre layer (21), the annular carbon fibre layer (21) being laid around the outer circumference of the metal core (1).

4. A brake spider according to claim 3, wherein the carbon fibre body (2) further comprises a sheet-like layer of carbon fibre (22); the middle part of the sheet-shaped carbon fiber layer (22) is laid on the outer peripheral surface of the annular carbon fiber layer (21) and forms the main body part (A) together with the annular carbon fiber layer (21); two ends of the flaky carbon fiber layer (22) extend in the direction away from the metal core body (1) to form two extending parts (B).

5. The brake hanger according to claim 4, characterized in that the top and bottom sides of the annular carbon fiber layer (21) are each laid with a sheet-like carbon fiber layer (22), and both ends of the sheet-like carbon fiber layer (22) on the top side and both ends of the sheet-like carbon fiber layer (22) on the bottom side are laid together.

6. The brake hanging seat according to claim 5, characterized in that the periphery of the metal core (1) is provided with a top plane (1a), a side plane (1b), a bottom plane (1c) and an inclined plane (1d) which are smoothly connected end to end, the top plane (1a) and the bottom plane (1c) are parallel, the side plane (1b) is perpendicular to the top plane (1a), and the inclined plane (1d) forms an included angle with the top plane (1 a); the middle parts of the flaky carbon fiber layers (22) on the top side are laid on the top plane (1a) and the side plane (1b), and the middle parts of the flaky carbon fiber layers (22) on the bottom side are laid on the bottom plane (1c) and the inclined plane (1 d).

7. A brake spider according to claim 6, wherein both ends of the top sheet carbon fibre layer (22) and both ends of the bottom sheet carbon fibre layer (22) extend in a direction parallel to the top plane (1 a).

8. The brake hanger of claim 7 wherein the topmost sheet of carbon fiber (22) is provided with a bead (221) that bulges to the top side.

9. The brake pod of claim 8, wherein the extension (B) comprises two extension arms (B1), the two extension arms (B1) being spaced apart from each other in the axial direction of the metal core (1), the rib (221) being connected between the two extension arms (B1).

10. Bogie, comprising brake callipers, side beams and brake lifting mounts, characterized in that the brake lifting mounts use the brake lifting mounts according to any of claims 1-9.