Method for replacing disabled bolt weight anchor at speed improving runway switch crossing sleeper of railway

A replacement method and technology for bolts, which can be applied in roads, tracks, buildings, etc., can solve the problems that bolt sleeves cannot be taken out and are not suitable for maintenance of skylights, etc., and achieve the effects of long thermal energy cooling time, short operation time, and small operating tools
CN100564673CActive Publication Date: 2009-12-02广州红祥机械科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
广州红祥机械科技有限公司
Publication Date
2009-12-02

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Abstract

A way for replacing the failed bolts and weighing anchors for switch ties of railroad switches for increasing speed of railways is provided. The invention employs the operation principle of melting plastic by thermal energy, and completes the replacing by such procedures as burning red the four spline shafts, fusing and pressing bolt sleeves, rotating out the bolt sleeves, etc. The invention has the advantages of the saved labor source, the easy operation, the short operation time, the compact operation tools, etc., and is applicable for the weighing anchors of other switch ties of the same type.
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Description

technical field

[0001] The invention belongs to a construction method for replacing railway turnouts, in particular to a method for replacing failed bolt casings of turnout sleepers. Background technique

[0002] At present, railway transportation has achieved the sixth major speed increase, and the speed of most trunk lines has reached more than 200 kilometers per hour. As an important part of railway transportation equipment, turnouts play an important role in the heavy-duty and high-speed railway lines.

[0003] Most of the switch sleepers in the prior art adopt concrete structure, and the plastic sleeves are pre-buried in the switch sleepers, and screwed into the plastic sleeves with the switch sleeper bolts, and the switch backing plate and the rubber pad under the board are firmly connected with the switch sleeper. With such a solid structure, it is very difficult to repair the plastic sleeve after it fails. Since the outer surface of the plastic pipe is provided wit...

Claims

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