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Railway turnout external locking lock hook forge piece

A technology for locking hooks and turnouts, applied in roads, rails, buildings, etc., can solve problems such as unreasonable structure, poor stability, and large bending degree of the hook hook, and achieve simple forging process, stability and wear resistance Improved effect

Inactive Publication Date: 2016-02-10
TIANJIN DONGCHUAN WEIYE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the hook-type external locking device has replaced the dovetail-type external locking device and is widely used on railway turnouts. However, when the train runs to the switch, the operating environment is complicated, and the switch is subjected to complex alternating stress. External locking, especially external locking The quality requirements of the locking hook are getting higher and higher, while the existing external locking hook has a large degree of bending, unreasonable structure, poor stability, and safety problems such as fracture

Method used

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  • Railway turnout external locking lock hook forge piece
  • Railway turnout external locking lock hook forge piece
  • Railway turnout external locking lock hook forge piece

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as Figure 1-Figure 2 As shown, a forging of a railway switch external locking locking hook includes a straight arm portion 1, a curved arm portion 2 located at one end of the straight arm portion 1 and a raised portion 3 located at the other end of the straight arm portion 1, the raised portion 3 The curved arm portion 2 is located on the same side of the straight arm portion 1, and the other side of the straight arm portion 1 corresponding to the raised portion 3 is provided with a trapezoidal groove 11. The curved arm portion 2 A through hole 21 is provided; the angle between the curved arm portion 2 and the straight arm portion 1 is α, α=90°; the angle between the raised portion 3 and the straight arm portion 1 is β, β=115°; the curved arm part is in the shape of a rectangle.

Embodiment 2

[0020] Such as Figure 3-Figure 4 As shown, a kind of railway turnout external locking lock hook forgings comprises a straight arm part, a curved arm part located at one end of the straight arm part and a raised part located at the other end of the straight arm part, the raised part and the bent arm part Located on the same side of the straight arm part, a trapezoidal groove is provided on the other side of the straight arm part corresponding to the raised part, and the curved arm part is provided with a through hole; the curved arm part and the The included angle between the straight arm parts is α, α=90°; the included angle range between the raised portion and the straight arm portion is β, β=100°; the curved arm part is a knife flag shape.

[0021] The lock hooks in the above embodiments are all forged with profiled round steel, the structure of the forging is further improved, the remaining defects of the material are reduced, the quality and performance are improved, and...

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PUM

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Abstract

The invention provides a railway turnout external locking lock hook forge piece, comprising a straight arm part, a bent arm part located at one end of the straight arm part, and a raised part located at the other end of the straight arm part, wherein the raised part and bent arm part are located at the same side of the straight arm part, the other side, corresponding to the raised part, of the straight arm part is provided with a trapezoidal groove, and the bent arm part is provided with a through hole. The railway turnout external locking lock hook forge piece has the beneficial effects that the structure of the force piece is further improved, the remaining material defects are reduced, and the quality and the performance are enhanced.

Description

technical field [0001] The invention belongs to the field of railway turnout connectors, in particular to an external locking lock hook forging for railway turnouts. Background technique [0002] As an important equipment for railway line connection, turnout is one of the weakest links in the track. The external locking device can effectively overcome the conversion resistance of the switch when the switch is in close contact, and reliably lock the switch switch and the basic rail (movable center rail and wing rail). At present, the hook-type external locking device has replaced the dovetail-type external locking device and is widely used on railway turnouts. However, when the train runs to the switch, the operating environment is complicated, and the switch is subjected to complex alternating stress. External locking, especially external locking The quality requirements of the locking hook are getting higher and higher, but the hook portion of the existing outer locking lo...

Claims

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Application Information

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IPC IPC(8): E01B7/20
Inventor 李华伟
Owner TIANJIN DONGCHUAN WEIYE ELECTRONICS