Steel rail switch twisting device

Abstract

The invention discloses a steel rail switch twisting device. A first unit body and a second unit body are fixedly connected by a middle connecting plate into a whole; the first unit body and the second unit body respectively comprise two separated substrates, installing blocks are symmetrically mounted between the two substrates of the first unit body, a fixture sliding channel and a plug pin hole are formed in each installing block, a fixture is mounted in the fixture sliding channel, one ends of the left fixture and the right fixture are respectively fixedly connected with a piston rod of a clamping oil cylinder; a lock mechanism is mounted on the bottom of each installing block; the second unit body has the same structure with that of the first unit body, an inner flange and an outer flange are mounted on the substrate of the second unit body, the outer flange is fixedly connected with the outer wall of the substrate, the outer flange is supported against the outer circular face of the inner flange, the inner flange is fixedly connected with the outer walls of the installing blocks; the installing blocks are fixedly connected with one end of a twisting arm, the other end of the twisting arm is hinged with a twisting oil cylinder, a sensor is mounted on the twisting oil cylinder, and the other end of the twisting oil cylinder is hinged between the two substrates of the second unit body. The steel rail switch twisting device realizes controllability of the processing angle of a steel rail.

Description

technical field [0001] The invention relates to steel track fork processing equipment, in particular to a controllable radial torsion processing device for steel rails. Background technique [0002] A turnout is a line connection device that enables locomotives to transfer from one lane to another, and is usually laid at stations and marshalling yards. The processing quality of turnout rail is the basis of safe railway transportation. The production enterprises of turnout rails in my country, such as Baoji Bridge Factory, Zhuzhou Bridge Factory, Zibo Engineering Section, etc., all use the method of cold pressing and torsion processing of large-scale presses when processing steel rails. The principle is to use special molds to move the press up and down. , converted to torsion processing of rails. However, this processing method has the following disadvantages: [0003] (1) The design and manufacture of the mold can only be processed according to one type of rail, and multi...

AI Technical Summary

Problems solved by technology

[0003] (1) The design and manufacture of the mold can only be processed according to one type of rail, and multiple sets of molds are required for the processing of various types of rails. The manufacturing cost of the mold is expensive and the design is complicated

[0004] (2) When designing the mold, it is difficult to accurately obtain the springback characteristics of the rail to be processed. In this way, the required torsion angle of the rail cannot be obtained, which makes the design and manufacture of the mold difficult

In addition, for the same type of rail, due to different batches, parameters such as hardness and elasticity are different, it is difficult to change the actual torsion angle at will to adapt to the springback of the rail, so that the final angle and accuracy of the rail after torsion are not high

[0005] (3) During the working process, the torsion angle cannot be displayed

[0006] (4) The wear of the mold, hot pressing processing and dimensional accuracy will also affect the improvement of the torsion accuracy of the rail

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