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High-speed turnout switch tie for speed of 350km per hour and manufacturing method thereof

A switch sleeper and high-speed technology, which is applied in the field of prestressed concrete switch sleepers and their manufacturing, can solve the problems of insufficient bearing capacity, low stability, and inability of ordinary prestressed concrete switch sleepers to adapt to high-speed rails with a speed of 350km per hour.

Active Publication Date: 2012-09-05
中铁十四局集团房桥有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a 350km / h high-speed turnout sleeper and its manufacturing method, to solve the technical problems of insufficient bearing capacity, low stability, and short service life of traditional turnout sleepers, and to solve the inability of ordinary prestressed concrete turnout sleepers To adapt to the problem of 350km / h high-speed track, it is also necessary to solve the technical problems that the prestressed concrete turnout sleepers are prone to uneven stress, large precision errors, and urgently need to be improved in quality

Method used

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  • High-speed turnout switch tie for speed of 350km per hour and manufacturing method thereof
  • High-speed turnout switch tie for speed of 350km per hour and manufacturing method thereof
  • High-speed turnout switch tie for speed of 350km per hour and manufacturing method thereof

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Embodiment Construction

[0068] Examples see Figure 1-Figure 4 As shown, a high-speed turnout sleeper with a speed of 350km per hour includes a concrete slab body 1.1, a prestressed steel hinge line 1.2 embedded in the concrete slab body 1.1, a casing 1.3 and an adjusting bolt 1.4, and the lower part of the concrete slab body 1.1 is connected with Two rows of trusses, characterized in that: the concrete turnout sleeper 1.1 is a full-length integral type, and the cross-sectional shape is a trapezoid with a small top and a big bottom; the prestressed steel hinge line 1.2 is pre-embedded with 6 roots, and are distributed symmetrically in a triangle on the left and right sides of the central axis of the concrete turnout sleeper 1.1;

[0069] The concrete turnout sleeper 1.1 is pre-embedded with an upper chord 1.7 on the left and right sides respectively, and two lower chords 1.8 are arranged corresponding to the upper chord 1.7 in a triangle under the concrete turnout 1.1, the upper chord 1.7 and the two...

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Abstract

The invention discloses a high-speed turnout switch tie for speed of 350km per hour and a manufacturing method thereof. The method comprises the following steps of: 1, installing a template; 2, laying steel wires; 3, laying end plates; 4, installing sleeves and laying separators; 5, laying fittings; 6, starting a computer to automatically control the tensioned steel wires; 7, performing final tension; 8, fastening the separators, and binding the fittings; 9, putting an ash bucket and concrete into a die; 10, vibrating; 11, detaching the separators and partition plates; 12, clearing the production line; 13, curing; 14, performing concrete stripping; 15, tensioning; 16, breaking the wires, and stripping; 17, spraying, treating the sleeves, and cutting the exposed ribs; 18, clearing the die and the parting agent; and 19, warehousing. Accurate control of distribution quantity, uniform distribution and high speed are realized, stirring uniformity and concrete compactness are realized in automatic distribution, and the strength of the switch die is ensured.

Description

technical field [0001] The present invention relates to the field of prestressed concrete turnout sleepers and methods of manufacture thereof. Background technique [0002] The 350km / h high-speed turnout sleeper has complicated technology, high standards and strict requirements. In order to reduce the impact force and friction force during the operation of the passenger dedicated line train, improve the stability of the train operation, and meet the needs of the high-speed operation of the train, the high-speed turnout sleeper requires high precision in the shape and size, strong bearing capacity and anti-fatigue ability. The scope of application of high-speed turnout sleepers with different sizes and specifications is very different. However, the structural design of the existing switch sleepers is relatively simple, and the later strength, bearing capacity and fatigue strength of the concrete are insufficient. The overall dimensions of the turnout sleeper, the design of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B7/22B28B23/06
Inventor 姜忠仁曹凤洁孟国珍郇刚苏华峰
Owner 中铁十四局集团房桥有限公司
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