Measuring ruler for groove-shaped steel rail of tramcar

A technology for trough rails and trams, which is applied to measuring instruments, tracks, and track maintenance. It can solve the problems of not being able to accurately reflect the real status of rail welded joints, not being able to accurately locate the 14mm gauge line, and not being able to measure horizontally. It is convenient for on-site measurement, easy to operate and use, and has strong applicability

Pending Publication Date: 2019-08-06
CHINA RAILWAY BAOJI BRIDGE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the traditional I-shaped rail, the grooved rail has its own guard rail (the guard rail is 6mm lower than the highest point on the top surface of the rail), and a flange groove is formed between the working side of the rail and the guard rail. The width of the flange groove of the 59R2 grooved rail is 42mm , 60R2 grooved rail flange groove width 36mm, but the traditional ruler currently used in the factory (such as Figure 7 and Figure 8 ) When measuring the straightness of the working edge of the grooved rail, the width is greater than the minimum flange groove of the grooved rail by 36mm, so it cannot be measured horizontally, and the 14mm gauge line cannot be accurately positioned. In addition to different human factors, the measurement error is large, and the rail cannot be accurately reflected The actual condition of the welded joint, see the measurement status Figure 9 , Figure 9 The shaded area indicates interference

Method used

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  • Measuring ruler for groove-shaped steel rail of tramcar
  • Measuring ruler for groove-shaped steel rail of tramcar
  • Measuring ruler for groove-shaped steel rail of tramcar

Examples

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Embodiment Construction

[0022] Such as figure 1 Shown, a kind of tramway rail measuring ruler of the present invention comprises main ruler 1 and auxiliary ruler 2.

[0023] Such as figure 2 , 3 As shown, the main ruler 1 adopts a rectangular ruler structure made of high-quality carbon steel or stainless steel, and a pair of main ruler mounting holes 11 are opened through the middle of the two ends in the length direction; at the same time, the main ruler 1 is in the width direction. The opposite sides of the opposite sides all have slope 12 down along the length direction; The width of this main chi 1 is less than the minimum rim groove of the grooved rail, and can be freely placed in the grooved rail rim groove to realize normal horizontal measurement. In this embodiment, the main ruler 1 is based on the top surface of the rail, and can accurately measure the 14mm of the gauge line of the rail to achieve accurate measurement.

[0024] Such as Figure 4 , 5 As shown, the auxiliary ruler 2 is ...

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Abstract

The invention relates to a tramcar groove type steel rail measuring ruler which comprises a main ruler and an auxiliary ruler. The pair of auxiliary rulers are respectively hinged to two ends of the main ruler in the length direction, and the auxiliary rulers and the main ruler can rotate relative to each other. The device is simple and reasonable in structural design, convenient to operate and use, easy to manufacture, high in applicability and capable of accurately measuring the straightness of the working edge and the rail top face of the steel rail welding joint.

Description

technical field [0001] The invention relates to a measuring tool, in particular to a measuring ruler for a grooved steel rail of a tram. Background technique [0002] At present, the main lines of domestic urban trams use 59R2 or 60R2 grooved steel rails. In order to improve the ride comfort and reduce the maintenance workload in the later period, the entire track is required to be seamless, and the seamlessness of the rails is now achieved by welding. The straightness of rail joints after welding has become a technical point and a key point of detection. Now the industry uses traditional rulers (such as Figure 7 with Figure 8 ) to inspect the welded joints of the rails. Compared with the traditional I-shaped rail, the grooved rail has its own guard rail (the guard rail is 6mm lower than the highest point on the top surface of the rail), and a flange groove is formed between the working side of the rail and the guard rail. The width of the flange groove of the 59R2 groov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B35/02
CPCE01B35/02
Inventor 张海华李悦冀娟茹
Owner CHINA RAILWAY BAOJI BRIDGE GRP
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