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Grinding machine for weld joint in rail flange of steel rail

A grinding machine and rail bottom technology, which is applied in the direction of track, track laying, track maintenance, etc., can solve the problems of rail bottom grinding construction difficulties, shorten the fatigue life of rails, etc., and achieve the effect of convenient grinding and smooth weld seam

Active Publication Date: 2016-06-08
CHINA RAILWAY SHANGHAI ENGINEERING BUREAU GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As for the surface quality of the rail bottom, since the rail bottom is the part subjected to the maximum tensile stress when the train passes in use, the local stress concentration caused by the uneven surface will greatly shorten the fatigue life of the rail
However, in the on-site rail weld grinding operation, especially in the case of integral cement ballast, due to the relatively small space between the rail bottom and the ballast bed, it is difficult to grind the weld seam of the rail bottom

Method used

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  • Grinding machine for weld joint in rail flange of steel rail
  • Grinding machine for weld joint in rail flange of steel rail

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] As shown in the figure, a rail bottom weld seam grinder includes a support frame 1 composed of a top plate 101, a bottom plate 102, and front and rear side plates 103. A gap 104 is provided at the upper left corner of the front and rear side plates 103 of the support frame 1 to support The inside of the frame 1 is provided with a lifting frame 2, and the inside of the lifting frame is provided with a slide plate 3 that can slide left and right. The left side of the top of the slide plate 3 is provided with a grinding wheel 4, and the right side is provided with a motor 5 and a handrail 6 from the inside to the outside. A belt transmission mechanism 7 is provided between 4 and the motor 5 . The support frame top plate 101 is provided with a threaded hole 105, and the corresponding support frame 1 threaded hole 105 place is provided with a through hole 201 on the lifting frame 2 top plate. In the threaded hole 105 on the top plate of the support frame and through the thro...

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PUM

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Abstract

The invention relates to a grinding machine for a weld joint in the rail flange of a steel rail. The grinding machine aims to grind the surface of the weld joint of the steel rail smooth and prolong the service life of the rail. The grinding machine comprises a support frame formed by a top plate, a baseplate and front and rear side plates. Notches are formed in the top left corners of the front and rear side plates of the support frame, a lifting frame is arranged in the support frame, a sliding plate capable of sliding left and right is arranged in the lifting frame, the sliding plate is provided with a grinding wheel on the left side of the top and a motor and an armrest on the right side of the top from inside to outside, and a belt transmission mechanism is arranged between the grinding wheel and the motor.

Description

technical field [0001] The invention relates to a rail grinding machine, in particular to a rail bottom welding seam grinding machine. Background technique [0002] At present, the development of urban railways in China is moving towards high-speed and seamless tracks, and track welding is a crucial technology. The quality of rail joints is also the key to affecting the service life of lines and train operation. [0003] The quality of rail joint welding not only refers to the internal welding quality of the weld, such as whether there are welding defects inside, but also includes the surface quality of the rail joint weld, such as the grinding quality of the rail joint weld. The unevenness of the surface will directly affect the quality of the train. The running speed and stability of the machine, as well as the resulting additional impact load, etc. As for the surface quality of the rail bottom, since the rail bottom is the part subjected to the maximum tensile stress whe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B31/17
Inventor 梁金桥侯志广李昊林宏亮张磊
Owner CHINA RAILWAY SHANGHAI ENGINEERING BUREAU GROUP CO LTD
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