Design and manufacture method of fixed frog and fixed frog
A frog and design basis technology, applied in the direction of point switches, roads, buildings, etc., can solve the problem of easily increasing the damage probability of fixed frogs, and achieve the effect of reducing the damage probability
Active Publication Date: 2020-09-08
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology
However, in the prior art, when designing and manufacturing the structure of the fixed frog, only standard wheel profiles are used for geometric checking or dynamic evaluation of the fixed frog. Fork damage probability
Method used
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[0034] In the prior art, when designing the fixed frog structure, only standard wheel profiles are used for geometric checking or dynamic behavior evaluation of the fixed frog. The fixed frog made in this way tends to increase the damage probability of the fixed frog.
[0035] After a long period of experience and experiments, the applicant found that when designing and manufacturing the fixed frog, if the geometrical state deterioration of the wheel and the fixed frog is not considered after the wear of the wheel profile, the dynamic interaction between the wheel and the fixed frog will increase ; If the dynamic impact damage to the fixed frog after the wear of the wheel phase surface is not considered, it is easy to increase the probability of damage to the fixed frog.
[0036] Based on this, the present invention provides a method for designing and manufacturing a fixed frog, which includes:
[0037] The design and manufacture of the fixed frog is guided by the characteris...
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The invention provides a fixed frog designing and manufacturing method and a fixed frog and relates to the technical field of railways. The fixed frog designing and manufacturing method comprises thesteps of guiding the designing and manufacturing of the fixed frog by using contact effect characteristics between wheels with different wear states and the fixed frog, wherein the wheels with the different wear states comprise the following wear states of a standard wheel profile, a fitting wheel profile and a wear limited wheel profile; using the fitting wheel profile as a design reference profile to design and manufacture the structure of the fixed frog so that the actual stress environment of the fixed frog is more really simulated; and using the wear limited wheel profile and the standardwheel profile as design characteristic profiles to adjust the structure of the fixed frog. The fixed frog designing and manufacturing method can guarantee that the wheels can still pass through the fixed frog by using low power under adverse conditions so that the damage probability of the fixed frog is reduced.
Description
technical field [0001] The invention relates to the technical field of railways, and in particular to a method for designing and manufacturing a fixed frog and the fixed frog. Background technique [0002] A fixed frog is a device in which a wheel passes one rail over another, and consists of a fork, a wing rail and connecting parts. [0003] Fixed frogs have strong integrity and good stability, and are widely used on heavy-duty lines in my country. However, in the prior art, when designing and manufacturing the structure of the fixed frog, only standard wheel profiles are used for geometric checking or dynamic evaluation of the fixed frog. Probability of fork damage. Contents of the invention [0004] The purpose of the present invention is to provide a method for designing and manufacturing a fixed frog. [0005] Another object of the present invention is to provide a fixed frog. [0006] The present invention solves its technical problems by adopting the following t...
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IPC IPC(8): E01B7/12
CPCE01B7/12
Inventor 徐井芒王平陈嘉胤高原陈嵘安博洋钱瑶胡辰阳
Owner SOUTHWEST JIAOTONG UNIV