Nut anti-loosening mechanism special for railway turnout

Abstract

The invention relates to a nut anti-loosening mechanism special for a railway turnout. A steel rail gasket is fixedly installed at a steel rail web through a bolt and a nut, and an anti-rotating gasket which is installed on the bolt and the nut in a sleeved mode is connected with the steel rail gasket through a split pin, so that the nut is prevented from rotating in the loosening direction to achieve a self-locking function. The nut anti-loosening mechanism has the advantages that the mechanical type bolt and nut anti-loosening mechanism is simple in structure and convenient to operate, the problem that bolts and nuts are prone to loosening, which troubles a turnout work maintenance department for a long time is effectively solved, in the maintenance or after disassembling adjusting, the bolts and nuts can be continuously used, and turnout cost is greatly reduced; contributions are made to durability, safety and few maintenance of the railway turnout; the mechanism is obvious in anti-loosening effect, the maintenance load of the turnout work maintenance department can be reduced substantially, and the mechanism is adaptive to needs of railway rapid development.

Description

technical field [0001] The invention relates to a special anti-loosening mechanism for railway turnout nuts, which has sufficient strength to overcome the loosening force of nuts, and has sufficient wrench space and degree of freedom in the nut installation direction, and belongs to the field of anti-loosening mechanism manufacturing for railway turnouts. Background technique [0002] 1. The anti-rotation sheet made of galvanized sheet is manufactured according to double-hole or multi-hole processing. The basic principle is to drill a hole slightly larger than the bolt on the gasket and install it in the bolt pair. After the nut is tightened, bend the extended part of the anti-rotation piece to the side of the nut to prevent the nut from loosening. Refer to the attached Figure 6 . The anti-rotation piece has simple manufacturing process and convenient installation. However, in the process of use, it is found that the extended part of the anti-rotation piece design is easy ...

AI Technical Summary

Problems solved by technology

Considering that the connection part of the anti-loosening mechanism is designed outside the wrench rotation plane, that is, the side of the rail washer, to solve the problem of the wrench rotation space; the most stable part of the anti-loosening mechanism (ie, the rail washer) bears the nut loosening force to ensure the anti-loosening mechanism. The loosening mechanism has sufficient strength to overcome the loosening force of the nut; the anti-rotation washer adopts an inner dodecagonal shape to adapt to different installation directions of the nut

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