High-strength alloy steel point rail and wing rail assembling type combined frog
An alloy steel, high-strength technology, applied in the field of high-strength alloy steel core rail and wing rail assembled frogs, can solve the problem of unstable heat treatment effect of the core of forging parts, difficulty in controlling the overall performance of the frog, and unstable field test results and other issues, to achieve the effect of being conducive to manufacturing and quality control, good impact resistance performance, and simple manufacturing and processing technology
Inactive Publication Date: 2014-08-13
SICHUAN YIHENG MACHINERY MFG CO LTD
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Problems solved by technology
Its main defects are as follows: due to the processing after the overall forging, the processing is difficult, the heat treatment effect of the core of the forged part is unstable, resulting in a large dispersion between the performance of the processed heart rail tip and the performance of the wing rail, and it is difficult to control the overall performance of the frog. Field tests The effect is also unstable
Method used
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Embodiment 1
[0008] Example 1, such as figure 1 As shown, the present invention includes a frog core rail, a wing rail, an ordinary steel rail wing rail 4, and an ordinary steel rail fork heel rail 3, and is characterized in that: the frog core rail and both side wing rails are processed and assembled from high-strength alloy steel, The high-strength alloy steel wing rail 2 is flush with the top and bottom of the ordinary steel rail, and is embedded in the inner rail waist of the ordinary steel rail. The strength alloy steel core rail 1 is 6mm, and the rear side of the high-strength alloy steel core rail is fixedly connected with the fork and rail of ordinary steel rails through fastening bolts, and the high-strength alloy steel core rail and high-strength alloy steel wing rail pass through the concave and convex cuts between them. Embedded and fixedly connected with fastening bolts; said high-strength alloy steel core rail and high-strength alloy steel wing rail are composed of the follow...
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The invention discloses a high-strength alloy steel point rail and wing rail assembling type combined frog. The high-strength alloy steel point rail and wing rail assembling type combined frog comprises a frog point rail, wing rails, common steel rail wing rails (4) and a common steel rail fork and rail (3); the high-strength alloy steel point rail and wing rail assembling type combined frog is characterized in that the frog point rail and the wing rails at two sides are formed by processing and assembling homogeneous high-strength alloy steel, high-strength alloy steel wing rails (2) are flush with the top part and the bottom part of a common steel rail, are embedded in a rail web at the inner side of the common steel rail and are fixedly connected into a whole wing rail by using fastening bolts, the top part of each high-strength alloy steel wing rail is higher than a the high-strength alloy steel point rail (1) by 6 mm, the rear side part of the high-strength alloy steel point rail is fixedly connected with the common steel rail fork and rail through fastening bolts, and the high-strength alloy steel point rail and the high-strength alloy steel wing rails are embedded through concave and convex notches among the high-strength alloy steel point rail and the high-strength alloy steel wing rails and are fixedly connected through fastening bolts. According to the high-strength alloy steel point rail and wing rail assembling type combined frog disclosed by the invention, the abrasion resistance and the impact resistance of the point rail and the wing rails are increased, and the service life of the frog is prolonged.
Description
technical field [0001] The invention relates to the technical field of railway tracks, in particular to a high-strength alloy steel core rail and wing rail assembled frog. Background technique [0002] With the rapid development of our country's national economy, the railway transportation volume is increasing continuously, and the railway transportation is developing towards the goal of speed-up, high speed and large transportation volume. As the speed of the train continues to increase, the axle load of the train continues to increase, and the operating density continues to increase, out of safety considerations, higher requirements are put forward for the railway track structure. Small radius curves, rail joints and turnouts are the three weakest links on railway lines, and turnouts including curves and rail joints are the weakest links on the line. As the main component of the turnout, the frog is the decisive factor of the life span of the turnout. At present, the wit...
Claims
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IPC IPC(8): E01B7/10
Inventor 郑玉兴
Owner SICHUAN YIHENG MACHINERY MFG CO LTD