CN212868255U - Brake shoe steel backing of railway engineering truck - Google Patents
Brake shoe steel backing of railway engineering truck Download PDFInfo
- Publication number
- CN212868255U CN212868255U CN202021223879.3U CN202021223879U CN212868255U CN 212868255 U CN212868255 U CN 212868255U CN 202021223879 U CN202021223879 U CN 202021223879U CN 212868255 U CN212868255 U CN 212868255U
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- steel
- back body
- steel back
- brake shoe
- steel backing
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Abstract
The utility model discloses a brake shoe steel backing of railway engineering vehicle, including the curved steel back body, locate the tile nose in the middle part of the steel back body, locate two location shelves and grab the material hole of tile nose both sides, every grabs the material hole and all is equipped with the hem that is located cambered surface one side in the steel back body, the tile nose is a section of U-shaped channel-section steel, and the both sides board of U-shaped channel-section steel passes the steel back body and welds the solid link in its cambered surface one side; the positioning gears are square stoppers, the upper parts of the square stoppers are provided with central grooves, the square stoppers penetrate through the steel back body, and the steel back body is fixedly connected with the square stoppers on one side of the inner arc surface in a welding mode. The utility model has the advantages of high connection strength, large bearing capacity and non-deformation, and can ensure the normal work of the brake shoe.
Description
Technical Field
The utility model relates to a brake shoe steel backing of railway machineshop car.
Background
The railway engineering vehicle is used for railway maintenance, a steel rail is usually hauled, heavy load needs to be borne, and a brake shoe of the railway engineering vehicle needs to have higher strength so as to meet the requirement of braking; the brake shoe steel back of the existing railway locomotive comprises an arc-shaped steel back body, a shoe nose arranged in the middle of the steel back body, two positioning gears and material grabbing holes arranged on two sides of the shoe nose, wherein each material grabbing hole is provided with a folded edge positioned on one side of the inner cambered surface of the steel back body; the tile nose and the two positioning gears are fixedly connected on the tile support through the through pins, and a synthetic friction material is laid on one side of the inner arc surface of the steel backing body and in the plurality of material grabbing holes, so that the friction coefficient and the braking effect are improved; however, during braking, the connection strength of the tile nose, the two positioning bars and the steel back body is low, the borne shearing force is small, the bearing capacity is low, deformation is easy to occur, and normal work is difficult to guarantee.
Disclosure of Invention
The utility model aims at the above-mentioned not enough that prior art exists, provide a brake shoe steel backing of railway machineshop car, it has joint strength height, the bearing capacity is big, non-deformable's advantage, can guarantee the normal work of brake shoe.
In order to achieve the purpose, the brake shoe steel back of the railway engineering truck comprises an arc-shaped steel back body, a shoe nose arranged in the middle of the steel back body, two positioning gears arranged on two sides of the shoe nose and material grabbing holes, wherein each material grabbing hole is provided with a folded edge positioned on one side of the inner cambered surface of the steel back body; the positioning gears are square stoppers, the upper parts of the square stoppers are provided with central grooves, the square stoppers penetrate through the steel back body, and the steel back body is fixedly connected with the square stoppers on one side of the inner arc surface in a welding mode.
The tile nose is a section of U-shaped channel steel and is fixedly connected with the steel back body, the penetrating pin connected with the tile support passes through the U-shaped channel, a penetrating pin hole is not needed to be arranged, and the square stop block is welded and fixedly connected with the steel back body, so that the tile nose has the advantages of high connection strength, large bearing capacity and difficult deformation, and can ensure the normal work of the brake shoe;
as a further improvement of the utility model, two steel bars are fixedly connected to the inner cambered surfaces of the steel backs at the two sides of the tile nose, and the two steel bars are positioned at the two sides of all the material grabbing holes at the respective sides; the friction material laid on one side of the inner arc surface of the steel backing body can be subjected to heat insulation and material grabbing effects, and is not easy to deform;
to sum up, the utility model has the advantages of joint strength is high, the bearing capacity is big, non-deformable, can guarantee the normal work of brake shoe.
Drawings
Fig. 1 is a front view of an embodiment of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a sectional view a-a of fig. 1.
Fig. 4 is a sectional view B-B of fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, the brake shoe steel back of the railway engineering truck of the embodiment includes an arc-shaped steel back body 1, a shoe nose 2 arranged in the middle of the steel back body, two positioning rails 3 arranged on two sides of the shoe nose 2, and two material grabbing holes 4, wherein each material grabbing hole 4 is provided with a folded edge 5 positioned on one side of an inner arc surface of the steel back body, the shoe nose 2 is a section of U-shaped channel steel, and two side plates 6 of the U-shaped channel steel penetrate through the steel back body 1 and are fixedly welded on one side of the inner arc surface; the positioning baffles 3 are square baffles with central grooves at the upper parts, the square baffles penetrate through the steel back body 1, and the steel back body 1 is fixedly connected with the square baffles at one side of the inner cambered surface in a welding manner; two steel bars 7 are welded and fixedly connected to the inner arc surfaces of the steel backs on the two sides of the tile nose 2, and the two steel bars 7 are positioned on the two sides of all the material grabbing holes 4 on the respective sides;
the tile nose 2 of the utility model is a section of U-shaped channel steel and is welded and fixedly connected with the steel back body 1, a through pin connected with the tile support passes through the U-shaped groove, the tile nose 2 does not need to be provided with a through pin hole, and a square stop block is added to be welded and fixedly connected with the steel back body 1, so that the advantages of high integral connection strength, large bearing capacity and difficult deformation are achieved, and the normal work of the brake shoe can be ensured; the two steel bars 7 can play a role in heat insulation and material grabbing to friction materials laid on one side of the inner cambered surface of the steel backing body, and are not easy to deform.
Claims (2)
1. A brake shoe steel backing of a railway engineering truck comprises an arc-shaped steel backing body, a shoe nose arranged in the middle of the steel backing body, two positioning blocks arranged on two sides of the shoe nose and material grabbing holes, wherein each material grabbing hole is provided with a folded edge positioned on one side of an inner cambered surface of the steel backing body; the positioning gears are square stoppers, the upper parts of the square stoppers are provided with central grooves, the square stoppers penetrate through the steel back body, and the steel back body is fixedly connected with the square stoppers on one side of the inner arc surface in a welding mode.
2. The brake shoe steel backing for railway construction vehicles as claimed in claim 1, wherein two steel bars are fixedly connected to the inner arc surface of the steel backing body at both sides of the shoe nose, and the two steel bars are located at both sides of all the material grabbing holes at each side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021223879.3U CN212868255U (en) | 2020-06-29 | 2020-06-29 | Brake shoe steel backing of railway engineering truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021223879.3U CN212868255U (en) | 2020-06-29 | 2020-06-29 | Brake shoe steel backing of railway engineering truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212868255U true CN212868255U (en) | 2021-04-02 |
Family
ID=75211770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021223879.3U Active CN212868255U (en) | 2020-06-29 | 2020-06-29 | Brake shoe steel backing of railway engineering truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212868255U (en) |
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2020
- 2020-06-29 CN CN202021223879.3U patent/CN212868255U/en active Active
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