Device for detecting scratch and out-of-roundness of wheel thread on line

A detection device and wheel tread technology, which is applied in the direction of rim measurement/measurement, can solve the problems of affecting the safety and service life of train and track operation, affecting the quality and accuracy of detection, and large braking force, so as to expand the detection range and reuse High efficiency, improved structural strength and service life, and simple structure

Active Publication Date: 2012-11-21
NANJING TYCHO INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, due to many reasons, the braking force is too large during the operation of the vehicle, the brake is too tight, and the abrasion of the wheel sliding on the rail surface is not a circular surface but a plane or an approximate plane, forming a "flat wheel", causing the vehicle to run. Severe impact affects the safety and service life of trains and tracks, and is a

Method used

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  • Device for detecting scratch and out-of-roundness of wheel thread on line
  • Device for detecting scratch and out-of-roundness of wheel thread on line

Examples

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[0017] The present invention will be further described below with reference to the drawings and embodiments.

[0018] Such as Figure 1-2 Shown: An online detection device for wheel tread scratches and out-of-roundness, including a working rail 1 and a rail clamping block 2 that fixes the working rail 1. A detection device located outside the working rail 1 is provided on the upper side of the rail clamping block 2 Device 3, the detection device 3 includes a housing 4, the cavity of the housing 4 is provided with a rocker arm support 5 and a rocker swing rod 6, and the rocker arm swing rod 6 is embedded in the upper side of the rocker support 5 and the upper shell of the housing 1 Between the bodies, the front end of the rocker arm swing rod 6 extends out of the housing 4 and extends toward the working rail 1. The front end of the rocker arm swing rod 6 is provided with a measuring rod 7, and the rear end of the rocker arm swing rod 6 is fixedly connected to it. And the driving ...

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Abstract

The invention discloses a device for detecting scratch and out-of-roundness of a wheel thread on line. The device comprises a working track (1) and a track clamping block (2), wherein a detection device (3) is arranged on the upper side of the track clamping block (2) and comprises a housing (4); a rocking arm bracket (5) and a rocking arm swing rod (6) are arranged in a cavity in the housing (4); the rocking arm swing rod (6) is embedded between the upper side of the rocking arm bracket (5) and an upper housing of the housing (4); the front end of the rocking arm swing rod (6) extends from the housing (4) to the working track (1); a measuring rod (7) is arranged at the front end of the rocking arm swing rod (6); a drive gear (8) fixedly connected and coaxial with the rocking arm swing rod (6) is arranged at the rear end of the rocking arm swing rod (6); a driven gear (9) connected with the drive gear (8) in an engaged way is arranged on the outer side of the drive gear (8); and a rotary encoder coaxial with the driven gear (9) is arranged on the driven gear (9). The device is high in detection precision, good in stability and wide in application range.

Description

technical field [0001] The invention relates to the technical field of vehicle wheel state detection, in particular to an on-line detection device for wheel tread scratches and out-of-roundness with high detection accuracy and good stability. Background technique [0002] The wheel set is a key part of the running mechanism of the train vehicle, and the state of the wheel set directly affects the running safety of the vehicle. At present, due to many reasons, the braking force is too large during the operation of the vehicle, the brake is too tight, and the abrasion of the wheel sliding on the rail surface is not a circular surface but a plane or an approximate plane, forming a "flat wheel", causing the vehicle to run. Severe impact affects the safety and service life of trains and tracks, and is a very dangerous defect. At present, there are many kinds of methods for detecting scratches and out-of-roundness in China, including sound detection, acceleration detection, elec...

Claims

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Application Information

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IPC IPC(8): B61K9/12
Inventor 石峥映黄明全孙志林蒋银男
Owner NANJING TYCHO INFORMATION TECH
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