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Automatic check method and device for wheel diameter of wheel set of train

An automatic calibration and train wheel technology, which is applied in the field of rail transit vehicles, can solve the problems of difficult estimation of wheel set speed, complex implementation process, and difficult wheel diameter calibration, so as to reduce calibration costs and prevent excessive wheel diameter differences. Large, precise calibration effects

Active Publication Date: 2017-08-18
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The implementation process of this type of calibration method is complicated, and equipment such as transponders needs to be arranged, and the cost of calibration is high. In addition, it is difficult to estimate the wheel set speed accurately during the process of train slipping and idling. Wheel Calibration

Method used

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  • Automatic check method and device for wheel diameter of wheel set of train
  • Automatic check method and device for wheel diameter of wheel set of train
  • Automatic check method and device for wheel diameter of wheel set of train

Examples

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Effect test

Embodiment 1

[0049] Such as figure 1 As shown, the present embodiment train wheel pair wheel diameter automatic calibration method, the steps include:

[0050] S11. Real-time detection of the operating condition of the train, when it is detected that it is in a idling condition, start to perform wheel-to-wheel diameter verification;

[0051] S12. When performing wheel-to-wheel diameter verification, respectively obtain the speed and wheel diameter of adjacent trailers of each power axle in the current train, and calculate the wheel-to-wheel diameter of each power axle according to the acquired speed and wheel diameter of adjacent trailers Verify.

[0052] According to the relationship characteristics between the wheel-to-wheel peripheral speed and the vehicle body speed under different working conditions, the actual speed of the vehicle body is the same as the speed of the trailer when the train is in the idling condition. This embodiment specifically utilizes the relationship characteri...

Embodiment 2

[0077] Such as Figure 5 As shown, in another embodiment of the present invention, a method for automatically verifying the wheel diameter of a train wheel, the steps include:

[0078] S21. Real-time detection of the running condition of the train, when it is detected that it is in a idling condition, start to perform wheel-to-wheel diameter verification;

[0079] S22. When performing wheel-set wheel diameter calibration, the designated power shaft is used as the calibration reference power shaft, and the speed of the calibration reference power shaft and the wheel-set wheel diameter in the current train are obtained, and according to the obtained calibration reference power The speed of the shaft and the diameter of the wheel set are verified against the wheel set diameters of other power axles in the train.

[0080] When the train is in the idling condition, the actual speed of the vehicle body is also the same as the speed of the train. This embodiment is basically the sa...

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Abstract

The invention discloses an automatic check method and device for the wheel diameter of a wheel set of a train. The method comprises the following steps: detecting the operation condition of the train in real time, and when the train is in an idle condition, executing the check for the wheel diameter of the wheel set; and in the process of executing the check for the wheel diameter of the wheel set, respectively acquiring the speeds and wheel diameters of adjacent trailers of each power shaft in the current train, and respectively checking the wheel diameter of the wheel set of each power shaft according to the acquired speeds and wheel diameters of the adjacent trailers. The device comprises a detection unit and a unit for checking the wheel diameter of the wheel set. The method and device disclosed by the invention can realize automatic check for the wheel diameter of the wheel set of the train and have the advantages that the implementation method is simple, the required cost is low, the check precision is high and the application range is wide.

Description

technical field [0001] The invention relates to the technical field of rail transit vehicles, in particular to a method and device for automatically checking wheel diameters of train wheels. Background technique [0002] The wheel set is the part of the train that is in contact with the rail, used to ensure the running and turning of the train on the track, bear all the static and dynamic loads from the train, and transmit them to the track, and finally enable the train to Creates a traction / braking effect. During the operation of a train, such as an EMU, if the wheel diameters of the wheels of each power axle of the train are too different, when the traction converter controls the motor to apply traction / braking force, it will cause each wheel pair to actually exert traction / brake force. If the power deviation is too large, it will seriously affect the life of the wheel set, endanger the safety of the line, and affect the normal operation of the train. Therefore, if the w...

Claims

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Application Information

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IPC IPC(8): B61K9/02B61K9/12
CPCB61K9/02B61K9/12
Inventor 黄浩彭鸿基刘海涛刘良杰姚中红徐绍龙邹档兵阳志雄郑钢周杨龙凯亮邹东海吴斐
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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