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Steel rail milling-grinding test device

A technology of a test device and a milling device, which is applied in the field of mechanical manufacturing technology and signal detection, can solve the problems of difficult acquisition of milling-grinding cutting temperature and cutting force, and achieve the effect of simple structure, low manufacturing cost and small space limitation

Pending Publication Date: 2018-02-09
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the rail milling and grinding car is in formal operation, it is necessary to make a reasonable milling-grinding process parameter selection and tool life judgment. Due to the limitation of space and other factors, it is difficult to obtain the cutting temperature and cutting force

Method used

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  • Steel rail milling-grinding test device

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Embodiment

[0075] The invention discloses a rail milling-grinding test device, which comprises a support frame;

[0076] A mobile platform mechanism for carrying the rail workpiece to be tested to move in the Y-axis and Z-axis directions is arranged below the main support frame;

[0077] A milling device for milling and grinding the surface of the rail workpiece is arranged above the main support frame;

[0078] A secondary support frame is arranged on one side of the main support frame, and the secondary support frame is used for installing the driving mechanism of the milling device;

[0079]The rail workpiece is fixedly installed on the mobile platform mechanism through a dynamometer, which is used to collect the cutting force of the rail workpiece during the milling-grinding repair operation; a notch is opened on the side of the rail workpiece body, and a thermocouple is embedded in the notch , which is used to collect the cutting temperature of the rail workpiece during the milling...

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Abstract

The invention discloses a steel rail milling-grinding test device. A mobile platform mechanism for carrying a to-be-tested steel rail workpiece to move in Y-axis and Z-axis directions is arranged below a main supporting frame; a milling and grinding device for performing milling-grinding repair operation on the surface of the steel rail workpiece is arranged above the main supporting frame; the steel rail workpiece is fixedly arranged on the mobile platform mechanism through a dynamometer, and the dynamometer is used for acquiring the cutting force of the steel rail workpiece in the milling-grinding repair operation process; a notch is formed in one side of a steel rail workpiece body, and a thermoelectric couple is embedded into the notch and is used for acquiring the cutting temperatureof the steel rail workpiece in the milling-grinding repair operation process. The steel rail milling-grinding test device can really simulate milling-grinding operation parameters of a steel rail milling and grinding vehicle and also can monitor the force and temperature data in the milling-grinding repair process on line. The current situation that the cutting machine tool cannot meet the steel rail on-line milling-grinding test conditions is changed. Theoretical basis is provided for domestic development of milling-grinding route shaping machinery.

Description

technical field [0001] The invention relates to the fields of mechanical manufacturing technology and signal detection technology, in particular to a rail milling-grinding test device. Background technique [0002] Steel rail is a key component of the rail transportation system, and it is in direct contact with the train wheels during service. Due to the effects of temperature load and braking force, rails will have cracks, fatigue damage, rail head crushing, corrugation, side grinding, fat edge, tread spalling, wear and other diseases during the service process. Noise can also induce track vibration and damage, which in turn affects the life of the track system as well as driving safety and stability. Therefore, it is very necessary to remove rail defects in time to avoid affecting the safety of train operation. [0003] Rail repair is divided into two processes: grinding and milling. Rail grinding uses multiple grinding wheels to envelop the top of the rail to complete m...

Claims

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Application Information

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IPC IPC(8): G01N3/58
CPCG01N3/58G01N2203/0202
Inventor 全燕鸣丁郭刘佩杰余浪
Owner SOUTH CHINA UNIV OF TECH
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