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Subway turnout switch

A point switch and turnout technology, applied in the field of rail transit, can solve problems such as short service life, and achieve the effects of improving wear resistance, increasing strength, and protecting weak sections

Inactive Publication Date: 2020-06-09
CHINA ACADEMY OF RAILWAY SCI CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of short service life of the switch switch in the urban rail in the prior art, the present invention provides a switch switch for subway, which adopts straight and curved combination linear for the point rail, cuts the straight basic rail, and thickens the point rail. The method of curved point rail thickness solves the above problems

Method used

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Examples

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Embodiment 1

[0032] like figure 1 As shown, a subway switch switch includes a basic rail 1 and a switch rail 2, and the switch rail 2 is arranged inside the basic rail 1.

[0033] like figure 2 As shown, the basic rail 1 includes a straight basic rail 11 and a curved basic rail 12. The switch rail 2 includes a curved switch rail 21 and a straight switch rail 22. The straight basic rail 11 and the curved switch rail 21 are on the same side, and the curved basic rail 12 and the straight tip Rail 22 on the same side.

[0034] like image 3 As shown, the curved point rail 21 includes a curved point rail straight section 211 and a guide curve 212, the curved point rail straight section 211 and the guide curve 212 are longitudinally connected, the curved point rail straight section 211 and the guide curve 212 are integral, and the curved point rail straight line The segment 211 is a straight line, the guide curve 212 is a circular arc, the straight section 211 of the curved point rail is the...

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Abstract

The invention provides a subway turnout switch. The subway turnout switch comprises a stock rail and a switch rail, the switch rail is arranged on the inner side of the stock rail, the stock rail comprises a straight stock rail and a curved stock rail, the switch rail comprises a curved switch rail and a linear switch rail, the straight stock rail and the curved switch rail are on the same side, and the curved stock rail and the linear switch rail are on the same side; the curved switch rail comprises a curved switch rail straight line section and a guide curve, the curved switch rail straightline section is connected to the guide curve, the curved switch rail straight line section and the guide curve are integral, the curved switch rail straight line section is linear, and the guide curve is arc-shaped; the straight stock rail head is sliced by 4-6mm, the thickness of the curved switch rail straight line section is increased by 4-6mm, and a wheel rail contact position is 16mm below ahighest point of the straight stock rail head. The curved switch rail of the switch adopts a straight-curve combined line type, and the length of the switch rail straight line section is prolonged asmuch as possible within the size of a turnout line type frame, so that the impact force and transverse force of a switch rail tip are reduced, and weak sections are protected; and the width of a curved switch rail head is increased, so that the thickness of the curved switch rail is improved, the wear resistance is improved and the service life is prolonged.

Description

technical field [0001] The invention relates to the field of rail transit, in particular to a subway switch switch. Background technique [0002] Rail transit has the advantages of large capacity, high speed, comfort, novelty, and flexibility. It is complementary to traditional transportation such as high-speed rail, aviation, and public transportation. It is a transportation tool with good development prospects. [0003] The turnout is an important equipment of the rail system, which directly affects the safe operation of the rail system and even the entire rail transit system. Turnouts can be divided into different numbers according to their frog angles, including No. 9 turnouts, No. 7 turnouts, and No. 12 turnouts. The larger the turnout number, the greater the allowable passing speed in the straight and lateral directions, and vice versa. According to the different forms of the switch, it can be divided into elastic bendable turnout and hinged turnout with heel joint. ...

Claims

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Application Information

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IPC IPC(8): E01B7/18E01B7/20E01B7/02
CPCE01B7/02E01B7/18E01B7/20
Inventor 杨亮王树国葛晶王猛司道林乾坤王璞杨东升许良善
Owner CHINA ACADEMY OF RAILWAY SCI CORP LTD
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