Tool for changing railway wagon coupler knuckles

Abstract

A tool for replacing a coupler knuckle of a coupler of a railway wagons comprises a base trolley, a rotating hand wheel, transmission gears, lifting double-screw bolts and coupler knuckle fixtures, wherein the transmission gears are three gears, which are completely as same as each other, engaged with each other and mounted on a platform of the base trolley; the rotating hand wheel is mounted on one transmission gear; the two lifting double-screw bolts are arranged on the other two transmission gears and can rotate with the transmission gears; and the coupler knuckle fixtures are mounted on the lifting double-screw bolts and can be used for clamping a knuckle at the front end of the coupler knuckle of the coupler. The tool for replacing the coupler knuckle of the coupler of the railway wagons, provided by the invention, has the advantages of simple structure, low cost, safety, high efficiency and convenience in use. As the motion of the rotating hand wheel is converted into the motion for stably lifting the coupler knuckle of the coupler upwards, the force for lifting the coupler knuckle upwards is reduced and the part is very stably moved to a desired height. Meanwhile, as the platform of the tool is both an operation platform in the operation of personnel and a tool for transporting materials by using railway tracks, the wagons are convenient to overhaul.

Description

technical field [0001] The invention relates to a tool for replacing coupler knuckles of railway wagons. Background technique [0002] In order to ensure the safety of railway traffic, vehicle couplers must be overhauled or replaced when they affect the safe operation of trains due to poor three-state conditions and excessive wear. The overhaul of couplers often involves the removal and installation of couplers. Because the knuckle weighs about 35KG, in the past, when replacing the knuckle, two people were usually required to carry it or use a certain vehicle to transport it to the location of the faulty coupler. When replacing the knuckle, due to the height of the horizontal centerline of the knuckle from the rail surface in the empty state, the freight car is (880±10) mm, and the knuckle is heavy. Generally, a strong person is required to rely on a certain inertia to move the knuckle. When the hook tongue is lifted to the specified height, once the hand slips and other fa...

AI Technical Summary

Problems solved by technology

When replacing the knuckle, due to the height of the horizontal centerline of the knuckle from the rail surface in the empty state, the freight car is (880±10) mm, and the knuckle is heavy. Generally, a strong person is required to rely on a certain inertia to move the knuckle. The hook tongue is lifted to the specified height. Once the hand slips and other factors cause the hook tongue to fall, it is very easy to cause personal injury, and there is a big safety hazard in the operation.

At present, there is a lack of research in this area at home and abroad, and most of them still use the clumsy old-fashioned mode when overhauling the coupler, which has safety risks and is not efficient.

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