Floating-type disassembling and assembling machine for inspection and maintenance of single-rotating-arm wheel-set axle box of rail vehicle

Abstract

The invention relates to a disassembling and assembling auxiliary tool, in particular to a floating-type disassembling and assembling machine for inspection and maintenance of a single-rotating-arm wheel-set axle box of a rail vehicle. The floating-type disassembling and assembling machine comprises a chassis, a load-carrying frame and a pressing head, guiding stand columns are fixedly arranged on the left side and the right side of the chassis respectively, the load-carrying frame comprises a base and sliding stand columns arranged on the left side and the right side of the base, each sliding stand column is connected with the corresponding guiding stand column in an internally and externally sliding and matched mode, the base is fixedly installed between the sliding stand columns on the two sides, and the pressing head is located over the base; a hydraulic or pneumatic cylinder and a hydraulic or pneumatic cylinder seat are vertically arranged on the pressing head, the hydraulic or pneumatic cylinder seat is fixedly installed between the sliding stand columns on the two sides, and vertical guiding mechanisms are arranged on the front side and the rear side of the hydraulic or pneumatic cylinder in parallel to be connected with the pressing head. The floating-type disassembling and assembling machine further comprises a hydraulic or pneumatic station and an electrical control unit which are arranged on the chassis, the hydraulic or pneumatic cylinder is connected with the hydraulic or pneumatic station through a hydraulic pipeline, and the electrical control unit comprises a starting unit and a control unit. According to the floating-type disassembling and assembling machine for inspection and maintenance of the single-rotating-arm wheel-set axle box of the rail vehicle, mechanical, electrical and hydraulic integrated control of the inspection and maintenance process is achieved, the work efficiency is greatly improved, the labor intensity of workers is reduced, and the inspection and maintenance technology is obviously improved.

Description

technical field [0001] The invention relates to an auxiliary tool for disassembly and assembly, in particular to a floating disassembly and assembly machine for rail vehicle single-arm wheel-to-axle box maintenance, which is suitable for all urban rail transit vehicles and railway vehicles (25T type vehicles) with single rotation Disassembly and assembly of arm wheel to axle box device. Background technique [0002] Rail vehicles are commonly used means of rail transportation. The running device used on the vehicle is an important part of the vehicle. The running device directly bears the weight of the vehicle body and ensures that the vehicle passes through the curve smoothly. At present, most of the wheel-to-axle boxes of all new rail transit vehicle running devices adopt single-arm type axle boxes, such as figure 1 As shown, the running device includes a frame 21, a single swing arm 22 and a shock absorbing spring 23, the shock absorbing spring is located between the fra...

AI Technical Summary

Problems solved by technology

In the actual assembly of the wheel-to-axle box, it is necessary to overcome the elastic force of the shock absorbing spring to assemble the hinged shaft into the mounting hole at the joint between the frame and the single pivot arm. Take out the articulated shaft, and complete the disassembly and maintenance of the wheel-to-axle box device; and with the rapid development of my country's rail transit industry and the continuous increase of new models, especially for the running device of the railway vehicle with a relatively large load capacity, the shock-absorbing spring used The specifications are also relatively large. In the process of vehicle inspection and maintenance, the spring force of the shock absorbing spring to be overcome for the disassembly and assembly of the wheel set is also relatively large. It is impossible or difficult to complete the disassembly and assembly of the axle box only by manual labor, resulting in low maintenance efficiency.

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