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Online detection mthod and device for train wheel pair size

A detection method and technology for train wheels, which are applied to measurement devices, optical devices, wheel rim measurement/measurement, etc., can solve the problems of complex shape of the object to be measured, harsh field conditions, high labor intensity, etc., and achieve convenient installation and high precision. The effect of convenient inspection and maintenance

Inactive Publication Date: 2007-01-24
GUANGZHOU AUTO TRANSPORT MEASURE & CONTROL TECH
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Problems solved by technology

At present, the detection method of the vehicle maintenance department can only be manual inspection with special inspection measuring tools when the train is parked. Due to technical difficulties such as high requirements, complex shape of the object to be measured, and harsh on-site conditions, no dynamic measurement technology has been applied to online wheel set size detection.
In order to adapt to the development direction of high-speed and heavy-duty railway transportation, higher requirements are put forward for the maintenance level of trains. The original planned maintenance system can no longer meet the needs of modern transportation management systems. Detect the running status of the train during its operation, find faults accurately and timely, and provide maintenance departments to formulate timely and accurate maintenance plans

Method used

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  • Online detection mthod and device for train wheel pair size
  • Online detection mthod and device for train wheel pair size
  • Online detection mthod and device for train wheel pair size

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Embodiment Construction

[0018] Such as figure 1 As shown, two pairs of laser displacement detectors with the rim of the train wheel as the axis are arranged symmetrically on both sides of each rail, and every four laser detectors between the two guide rails are located on the same wheel axis; each laser detector is controlled by a laser Composed of light source, photoelectric potential sensitive sensor and imaging lens; the photoelectric potential sensitive sensor and imaging lens are located on the optical axis of the lens according to their imaging relationship. The photoelectric potential sensitive sensor reflected by the train wheel. The laser detector is installed in a box, and the laser emitted by the laser detector is projected obliquely upward from the bottom side of the rail to the train wheel, and the laser detector scans and detects the distance from the end face of the train wheel to the laser detector.

[0019] First, the sensor installation fixture is connected to the rail by fastening...

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Abstract

The present invention discloses on-line detection method and device for train wheel pair size. There are two pairs or four coaxial laser displacement detectors set on two sides of two tracks to send laser beams projected obliquely to the wheel pair for detecting the distances between each wheel end place to the laser detector, one high speed data acquisition and treat circuit, and one industrial control computer for recording, analysis and displaying. Based on PSD laser position measurement, the present invention can measure the flange thickness, flange height, wheel diameter and distance between backs of wheel flanges of high speed train in high precision.

Description

technical field [0001] The invention relates to a method for online detection of train wheel size, and also relates to a device for the method. Background technique [0002] The detection of various dimensions of the wheel set is an important task of the railway inspection department. The railway technical management regulations have strict regulations on the dimensions of each part of the wheel set. Causing derailment, subversion and other vicious accidents. [0003] The overall size of the wheel set is strictly designed according to the dynamic relationship between the wheel and the rail. It is an important technical parameter in the process of vehicle operation. Especially under high-speed operating conditions, the control of the wear of the outer size of the wheel set is more stringent. At present, the detection method of the vehicle maintenance department can only be manual inspection with special inspection measuring tools when the train is parked. Due to technical d...

Claims

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Application Information

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IPC IPC(8): B61K9/12G01B11/04
Inventor 朱茂之石磊
Owner GUANGZHOU AUTO TRANSPORT MEASURE & CONTROL TECH
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