A Mechanism for Measuring the Internal Distance of Rail Wheelsets Based on Rail Trains

Abstract

The invention relates to the technical field of rail transit detection equipment, and discloses a rail wheel set internal distance measurement mechanism based on rail trains, including a rail wheel set, movable splints are provided at both ends of the rail wheel set, and the movable splint The bottom of one side is fixedly installed with a limit ball seat in contact with one end of the rail wheel pair, and the middle part of one side of the movable splint is fixedly installed with a limit clamp block, and the bottom of the limit clamp block is in contact with the outer surface of one end of the rail wheel set. touch. The rail wheel set internal distance measurement mechanism based on rail trains, the setting of the balance springs fixedly set on the two ends of the outer surface of the support truss and its state, so that the measuring pressure rod in the measurement mechanism can have a comparison reference to measure both sides respectively. The position of the steel wheels avoids the problem that the two sets of steel wheels on the rail wheel set deviate to one side at the same time and cannot be detected, thereby effectively improving the detection effect and accuracy of the measuring mechanism.

Description

technical field [0001] The invention relates to the technical field of rail transit testing equipment, in particular to a rail wheel set internal distance measuring mechanism based on rail trains. Background technique [0002] In rail transit, the wheel set is the part of the rail train that is in direct contact with the rail. It consists of two steel wheels firmly pressed on the same axle. The main function of the rail wheel set is to ensure that the rail vehicle is on the rail. It needs to bear all the static load and dynamic load from the rail vehicle and transfer it to the rail, which is an important part to ensure the normal and safe operation of the rail train. [0003] Therefore, there are strict requirements for the press-fitting of the wheel sets during production, and the inner spacing of the wheel sets must be controlled within the range of 1353±3mm. The internal spacing is tested to strictly control the production quality of rail wheel sets and ensure the safe o...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a rail wheel set internal distance measurement mechanism based on rail trains, which has a simple structure, is easy to carry and operate, has high detection efficiency, and sets up a comparison reference to prevent two groups of steel wheels from shifting to one side and detection errors The advantages of small size and high precision solve the problem that the existing wheel set detection devices are mainly divided into two types, one is a simple rod-shaped structure, which is convenient and quick to use, and the operator can take it anytime and anywhere to check the rail wheel set Carry out measurement work, but the detection device needs to control its horizontal state, and it is very easy to cause a large detection error for the wheel set due to the unbalanced placement, and the detection device can only detect the distance between two sets of steel wheels , and there is no reference, which leads to the fact that when the two sets of steel wheels deviate to one side at the same time, it cannot be detected, and the overall detection effect is poor and the accuracy is low; the second is a multi-sensor vertical structure, which This detection device is bulky and cannot be moved. During detection, the rail wheels to be detected can only be moved to the device, which greatly limits the scope of use of the detection device, and it needs to be tested one by one in mass production For the detection of large and heavy rail wheel pairs, it is time-consuming, laborious and inefficient.

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