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Straightness and twist angle detection method for turnout of high-speed railway and detection device thereof

A twist angle and detection device technology, which is applied to high-speed rail turnout straightness and twist angle detection devices, high-speed rail turnout straightness and twist angle detection fields, can solve problems such as low measurement accuracy, unintuitive detection results, and slow detection speed. High measurement accuracy, fast detection speed, and the effect of reducing errors

Active Publication Date: 2019-08-20
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the existing technical problems, the present invention provides a method for detecting the straightness and twist angle of a high-speed rail turnout and a detection device thereof, which solves the problem that the existing detection method for the contour of a high-speed rail turnout has slow detection speed, low measurement accuracy, and inaccurate detection results. intuitive question

Method used

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  • Straightness and twist angle detection method for turnout of high-speed railway and detection device thereof
  • Straightness and twist angle detection method for turnout of high-speed railway and detection device thereof
  • Straightness and twist angle detection method for turnout of high-speed railway and detection device thereof

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Embodiment 1

[0057] see figure 1 , figure 2 as well as image 3 , the present embodiment provides a method for detecting the straightness and twist angle of a high-speed rail switch, the method is used to detect the straightness and twist angle of a high-speed rail switch 1 on a turnout production line, and includes the following steps.

[0058] Step (a): First emit the line structured light covering the detection position to the rail top and rail waist of the high-speed rail turnout 1, and then drive the turnout production line to drive the high-speed rail switch 1 to move to scan the rail top and rail waist of the high-speed rail turnout 1 contour. In the actual detection process, corresponding detection structures can be installed on both sides of the turnout production line to scan and detect the high-speed railway turnout 1 located on the turnout production line. Since the line-structured light irradiates on the high-speed railway switch 1, a light band will be formed, and the cor...

Embodiment 2

[0069] see Figure 5 , Figure 6 as well as Figure 7 , this embodiment provides a high-speed rail switch straightness and twist angle detection device, which can apply the high-speed rail switch straightness and twist angle detection method in Embodiment 1. Wherein, the detection device includes a detection mechanism 1, an analysis calculation module and a control module, and may also include a data transmission module.

[0070] There are at least two detection mechanisms one, and the two detection mechanisms one are arranged on opposite sides of the high-speed railway switch 1 respectively. Each detection mechanism one includes a base 2 , a detection arm 3 and a detection head 4 . The base 2 is arranged on the opposite side of the high-speed railway switch 1 . In this embodiment, two bases 2 are directly fixed on opposite sides of the high-speed railway switch 1 respectively, and are symmetrical with respect to the high-speed railway switch 1 . The detection arm 3 inclu...

Embodiment 3

[0080] see Figure 10 , this embodiment provides a high-speed rail turnout straightness and twist angle detection device, the detection device is similar to the detection device in Embodiment 2, the difference is that the detection arm 3 of this embodiment is different, that is, the embodiment is removed in this embodiment Lock screw one 33 and lock screw two 34 in 2, and set up drive assembly. The drive assembly belongs to the detection mechanism one, and is used to drive the positioning rod one 31 to rotate relative to the base 2, and is used to drive the positioning rod two 32 to rotate relative to the positioning rod one 31, so that the other end of the positioning rod two 32 moves around the high-speed rail switch 1.

[0081] In this embodiment, the driving assembly includes a servo motor one 35 and a servo motor two 36 . The servo motor one 35 is fixed on the base 2, and is used to drive the positioning rod one 31 to rotate. The second servo motor 36 is fixed on the po...

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Abstract

The invention discloses a straightness and twist angle detection method for a turnout of a high-speed railway and a detection device thereof. The detection method comprises the following steps: first,emitting line structured light covering detection parts to a rail top and a rail waist of the high-speed railway, separately, and scanning the contours of the rail top and the rail waist of the turnout of the high-speed railway; generating planar contour data of the turnout of the high-speed railway; defining a detection coordinate system of the rail top and the rail waist of the turnout of the high-speed railway, and recording coordinates of the scanned contour points in real time in the detection coordinate system; calculating the planar jump values of the rail top coordinates and the railwaist coordinates of the scanned contour points in real time to acquire the straightness and the twist angle of the turnout of the high-speed railway; judging whether the planar jump values exceed a preset precision or not; and conveying the turnout of the high-speed railway to a to-be-processed area to be repaired when the planar jump values exceed the preset precision. The detection device disclosed by the invention is high in adaptability and efficiency. The detection device is not manually operated once being mounted, so that the workload of a worker can be reduced, and meanwhile, the detection device can detect automatically, is high in detection speed and high in measuring precision.

Description

technical field [0001] The invention relates to a detection method in the technical field of industrial product detection, in particular to a detection method for the straightness and twist angle of a high-speed rail switch, and also to a detection device for the straightness and twist angle of a high-speed rail switch in the detection method. Background technique [0002] Railway has always played a vital role in transportation. In recent years, with the rapid development of economy, railway transportation, high-speed rail and subway have also been vigorously developed. The high-speed railway turnout is an important part of the railway infrastructure, and its status directly affects the safe operation of the railway. Therefore, the quality inspection of high-speed rail turnouts is a very important part of the high-speed rail turnout manufacturing production line. The surface accuracy (straightness, curvature) of high-speed rail turnouts is a crucial item in the quality para...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61K9/08
CPCB61K9/08
Inventor 翟华方华李贵闪崖华青王磊时春生
Owner HEFEI UNIV OF TECH
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