Advanced Materials Research Vols. 915-916

Abstract: The future development and the general situation of ballast cleaning machine are summarized. The structure, working principle of RM80 ballast cleaning machine are introduced. The problems of the railway maintenance are analyzed. The domestic research results of recent years are compared. To increase the efficiency of the RM80 ballast cleaning machine the rail and frame should be analyzed and the body structure should be optimized.

Abstract: In order to reduce the pressure of type test resource of construction machinery and make full use of type test organization, a type test prediction model was established on the basis of type tests analysis. The type test demand and test limit of old construction machinery was predicted according to test data history, the national standards and industry standards. Then the type test demand of new construction machinery was predicted according to development data history, and was corrected by the national policy factor, the national economic situation factor, the enterprise's current economic factor, the current economic factor of construction machinery and the market factor. After that, the type tests of construction machinery were prearranged according to all the type test demand and test limit. Finally practicability and effectiveness of the prediction technology were verified by enterprise application.