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Track gauge adjustable ballastless turnout base plate fastening system

A backing plate and turnout technology, which is applied in the field of the backing plate fastening system of adjustable gauge ballastless turnout, can solve the problems of increasing the maintenance cost of the turnout, the composite positioning sleeve has no anti-rotation function, and the hidden danger of loose bolts of the turnout sleeper, etc. Daily maintenance workload, reducing the risk of shearing, and avoiding the effect of rotation

Pending Publication Date: 2021-12-31
CHINA RAILWAY BAOJI BRIDGE GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the composite positioning sleeve adopts an eccentric structure in the sliding bed plate and guard rail backing plate fastener system with only one gauge block, the gauge can be adjusted by changing the specification of the composite positioning sleeve or rotating the composite positioning sleeve by 180°, but the composite positioning sleeve They are all integral structures, and the upper part that acts as a cover plate and the lower part that acts as a buffer sleeve are designed as one. Once the gauge needs to be adjusted, they must be replaced as a whole, which increases the maintenance cost of the turnout, and the composite positioning sleeve has no anti-rotation function. Under the vibration of high-speed train crossing, there are hidden dangers of rotation and loosening of the bolts of the switch sleeper

Method used

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  • Track gauge adjustable ballastless turnout base plate fastening system
  • Track gauge adjustable ballastless turnout base plate fastening system
  • Track gauge adjustable ballastless turnout base plate fastening system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: A fastening system for ballastless turnout backing plate with adjustable gauge, including iron backing plate 1, elastic backing plate 2, height-adjusting backing plate 3 and turnout bolts 4, and elastic backing plate 2 is set on the iron backing Below the plate 1, the height-adjusting backing plate 3 is arranged below the elastic backing plate 2; the upper end surface of the iron backing plate 1 has two iron seats 1-3, and the gauge block is passed between the two iron seats 1-3. 8. The rail 9 is installed on the spring bar 10; the elastic backing plate 2 is consistent with or slightly larger than the iron backing plate 1 on the upper part, and the thickness is 5mm to 20mm. It is the main bearer of the elastic effect of the fastener system and provides the ballastless track. Elasticity, the material is EPDM foam rubber or polyurethane; the height adjustment backing plate 3 is made of high-density polyethylene or rubber and plastic, which is consistent with ...

Embodiment 2

[0039] Embodiment 2: On the basis of Embodiment 1, the structure of the eccentric sleeve 6 is further optimized, that is, the eccentric sleeve 6 is composed of a non-eccentric steel sleeve 6-3 and an eccentric buffer coated on the outer wall of the non-eccentric steel sleeve 6-3 The outer diameter of the eccentric buffer sleeve 6-4 is composed of two opposite semicircles with the same radius R connected by a straight section 6-1, and the center of the eccentric buffer sleeve 6-4 faces The eccentric value of left or right is e, so that the eccentric value of the center of the circular inner hole of the non-eccentric steel sleeve 6-3 and the center of the first oblong hole 1-1 is e.

[0040] The circular inner hole of the non-eccentric steel sleeve 6-1 has a stepped structure, and the upper inner diameter is larger than the lower inner diameter. The height of the lateral force action point of the turnout bolt 4 can be reduced, and the risk of the turnout bolt 4 being sheared can...

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Abstract

A track gauge adjustable ballastless turnout base plate fastening system comprises an iron base plate, an elastic base plate, a height adjusting base plate and a switch tie bolt, first long round holes are formed in the two ends of the iron base plate, second long round holes are formed in the two ends of the elastic base plate, and third long round holes are formed in the two ends of the height adjusting base plate; an eccentric sleeve is inserted into the first long round holes and the second long round holes, and the eccentric value between the center of a round inner hole of the eccentric sleeve and the center of the first long round hole is e; an anti-rotation boss is arranged at the upper end of the eccentric sleeve, a cover plate is arranged above the anti-rotation boss, a via hole is formed in the center of the cover plate, an anti-rotation groove is formed in the lower end face of the cover plate, and the anti-rotation boss is embedded into the anti-rotation groove; and a switch tie bolt sequentially penetrates through the via hole in the center of the cover plate, a round inner hole of the eccentric sleeve and the third long round hole and then is fixed to the switch tie, and the two ends of the iron base plate, the two ends of the elastic base plate and the two ends of the height adjusting base plate are fixedly connected to the switch tie. The eccentric sleeve is rotated by 180 degrees, so that the iron base plate is transversely moved by an eccentric value e, and the track gauge is adjusted.

Description

technical field [0001] The invention belongs to the technical field of railway turnouts, and in particular relates to a backing plate fastening system of an adjustable gauge ballastless turnout. Background technique [0002] The prior art closest to the present invention is the invention patent "a ballastless switch fastener system CN202010488902.X" previously applied by the applicant. The backing plate fastening system of this application is composed of switch sleeper bolts, spring washers, composite positioning sleeves, iron backing plates, elastic backing plates, and height-adjusting backing plates. It has the function of adjusting the gauge. Although the composite positioning sleeve adopts an eccentric structure in the sliding bed plate and guard rail backing plate fastener system with only one gauge block, the gauge can be adjusted by changing the specification of the composite positioning sleeve or rotating the composite positioning sleeve by 180°, but the composite p...

Claims

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Application Information

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IPC IPC(8): E01B1/00E01B7/22E01B9/68E01B9/44
CPCE01B1/002E01B7/22E01B9/681E01B9/685E01B9/44
Inventor 王阿利施庆峰袁宝军李悦冯毅刘强
Owner CHINA RAILWAY BAOJI BRIDGE GRP
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