CN101788533B - Self-adapted ultrasonic detector for online flaw detection for train wheel - Google Patents

Self-adapted ultrasonic detector for online flaw detection for train wheel Download PDF

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Publication number
CN101788533B
CN101788533B CN2010101370883A CN201010137088A CN101788533B CN 101788533 B CN101788533 B CN 101788533B CN 2010101370883 A CN2010101370883 A CN 2010101370883A CN 201010137088 A CN201010137088 A CN 201010137088A CN 101788533 B CN101788533 B CN 101788533B
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probe
probes
row
angle
socket
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CN101788533A (en
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赵全轲
彭朝勇
杨凯
赵波
王黎
高晓蓉
王泽勇
张渝
彭建平
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Chengdu Lead Science & Technology Co., Ltd.
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Chengdu Lead Science & Technology Co Ltd
Southwest Jiaotong University
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Abstract

The invention discloses a self-adapted ultrasonic detector for online train wheel flaw detection. In the invention, a probe array consists of more than two transversal rows of probes or two inner and outer longitudinal columns of probes, and the probes are arranged in a mode that: bi-crystal probes and small-angle mono-crystal probes are alternatively arranged in the inner column, bi-crystal probes and large-angle mono-crystal probes are alternatively arranged in the outer column and the bi-crystal probes of the inner and outer columns are not arranged in the same row; inductive sensors and ejector pins of the inductive sensors are arranged on the inner sides of probes of which the probe bases are in the inner column; the vertical heights of the ejector pins are greater than the heights of the probes in the inner column, the centers of the ejector pins and the centers of the inner-column and outer-column probes in the same row are all positioned on the same transverse line and the inductive sensors are connected with a control device. The detector can implement automatic online detection of full areas of a rim and a spoke of the train wheel accurately and reliably.

Description

The self-adaptation supersonic detection device of train wheel line flaw detection
Technical field
The present invention relates to the self-adaptation supersonic detection device of train wheel line flaw detection.
Background technology
At present, the general detection method that adopts manually of the flaw detection of train wheel, this method are used single probe manually on wheel tread, to move around and are accomplished the detection in most of zone.The defect type of its detection is limited, efficient is lower, because of manually-operated, it is big and make less stable, repeatability not good to cause detecting error.The on-line automatic failure detector of train wheel is also arranged, and its probe lacks the low-angle probe, can't detect profound defective; And its flip flop equipment and probe interlock; Cause measuring accuracy not high, false triggering easily, and the surface of contact of probe remains level; Following property when contacting with the wheel tread of motion is poor, causes the coupling effect of wheel and probe poor.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned prior art; A kind of self-adaptation supersonic detection device of train wheel line flaw detection is provided; This kind pick-up unit can realize that train wheel wheel rim, the region-wide automatic online of spoke detect, and measurement result is accurately reliable.
The present invention realizes that the technical scheme that its goal of the invention adopts is: a kind of self-adaptation supersonic detection device of train wheel line flaw detection; Comprise a plurality of ultrasonic probes of clamping form on hole for water spraying array on probe socket, the probe socket, the probe socket linear transducer array, with the control device that linear transducer array links to each other with the hole for water spraying array, its composition is:
Above or inside and outside longitudinally two row probes constitute described linear transducer array by two horizontal rows; Its concrete arrangement mode is: interior row are alternately arranged by bicrystal probe and low-angle monocrystal probe; Outer row are alternately arranged by bicrystal probe and wide-angle monocrystal probe, and the different rows of bicrystal probe of the bicrystal of interior row probe and outer row;
Probe socket is equipped with the thimble of induction pick-up and induction pick-up in the inboard of arbitrary probe of interior row; The vertical height of thimble is higher than the height of probe; The center of thimble with the center of row's interior row probe, outer row probe all on same straight line; And line is vertical with orbital direction, and induction pick-up links to each other with control device.
The course of work of the present invention and principle are:
Supersonic detection device of the present invention is placed on the detection line; The identical linear transducer array of symmetric arrangement on the track of the left and right sides; And the total length that makes linear transducer array equals girth (both a plurality of arrays of maximum wheel; Vertically arrangement meets the requirements its total length, and also a sufficiently long array is provided with separately).When train process detection line, the couplant when the hole for water spraying array is upwards sprayed water as the probe ultrasound detection; Wheel is near when probe; Wheel tread is depressed the thimble of probe socket inboard (near track centerline); Induction pick-up triggers; Control device is received two the probe work with row's inside and outside row (promptly near the row of track centerline with near the row of traveling rail) of control after the trigger pip, and the ultrasound wave that sends successively gets into the wheel rim and the spoke of wheel through wheel tread, and wheel is detected a flaw.Then, when wheel rolling was popped one's head in to next row, next row's thimble and above triggering and the flaw detection work of probe repetition were accomplished until the carrying out flaw detection in whole one week of wheel.
Compared with prior art, the invention has the beneficial effects as follows:
One, interior row are alternately arranged by bicrystal probe and low-angle monocrystal probe, and outer row are alternately arranged by bicrystal probe and wide-angle monocrystal probe, and the different rows of bicrystal probe of Nei Lie and outer row; The low-angle monocrystal probe of the interior row in such arrangement (near the row of track centerline) can detect position darker in the spoke, and the precision that the bicrystal probe detects superficial defects is high; Alternately arranging of bicrystal probe can be concerned about the bigger defective of circumferential width, and the wide-angle monocrystal of outer row (near the row of traveling rail) can cover whole wheel rim zone, and the defect type that makes device of the present invention detect is comprehensive, the overlay area is complete.
Two, thimble is independently arranged, the good stability of triggering, and physical strength is high; Than with the induction pieces of sensor interlock; It can disturb sensor and make the sensor shake, has guaranteed the measuring accuracy and the reliability of sensor, has prolonged the serviceable life of sensor simultaneously yet.
The concrete structure of clamping ultrasonic probe is on the above-mentioned probe socket: be fixed with gripper on the base of probe socket; The clamping chamber of gripper is embedded in the bottom of probe housing; And the both sides of the bottom of probe housing are provided with register pin; Register pin inserts the vertical spacing groove in the clamping chamber of gripper, is provided with back-moving spring between the bottom of probe housing and the bottom, clamping chamber.
This clamping mounting means make that probe can be twisting motion before and after axle takes place with the register pin, thereby when wheel tread just contacted with thimble, the probe surface of contact can be met to wheel tread and reversed; When wheel tread was directly over probe, the probe surface of contact was got back to horizontal level automatically; When wheel tread is about to leave probe, the probe surface of contact then reverses back to wheel tread; Thereby in each moment that the probe surface of contact contacts with wheel tread, the two all can keep good couple state; Simultaneously, because register pin is to be inserted in the vertical locating slot in both sides, clamping has back-moving spring in the chamber; Therefore, vertical deviation can take place in register pin, and the vertical deviation of both sides can be different, and therefore, it can adapt with various wheel tread profile.
In a word, method of clamping of the present invention makes probe good with the following property of wheel, can be adaptive week upwards with axially on all with the good couple state of tread maintenance, further make testing result of the present invention accurately reliable.
Below in conjunction with accompanying drawing and concrete embodiment the present invention is done further detailed description.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the right view of Fig. 1.
Fig. 4 is the probe of Fig. 3 embodiment of the invention and the structure for amplifying synoptic diagram of gripper and probe socket (the structure for amplifying synoptic diagram of clamping ultrasonic probe on the probe socket).
Embodiment
Embodiment
Fig. 1,2,3 illustrates; A kind of embodiment of the present invention is: the self-adaptation supersonic detection device of train wheel line flaw detection; Comprise a plurality of ultrasonic probes of clamping form on hole for water spraying array 3 on probe socket 1, the probe socket 1, the probe socket 1 linear transducer array, with linear transducer array and the control device that hole for water spraying array 3 links to each other, it is characterized in that:
Above or inside and outside longitudinally two row probes 2 constitute described linear transducer array by two horizontal rows; Its concrete arrangement mode is: interior row are alternately arranged by bicrystal probe 2a and low-angle monocrystal probe 2b; Outer row are alternately arranged by bicrystal probe 2c and wide-angle monocrystal probe 2d, and the different rows of bicrystal probe 2c of the bicrystal of interior row probe 2a and outer row;
Probe socket 1 is equipped with the thimble 6a of induction pick-up 6 and induction pick-up 6 in arbitrary inboard of popping one's head in 2a or 2b of interior row; The vertical height of thimble 6a is higher than the height of probe 2; The center of thimble 6a with the center of row's interior row probe 2, outer row probe 2 all on same horizontal line, induction pick-up 6 links to each other with control device.
Fig. 4 illustrates; The concrete structure of clamping ultrasonic probe is on this routine probe socket 1: be fixed with gripper 4 on the base 1a of probe socket 1; The clamping chamber 4a of gripper 4 is embedded in the bottom of probe housing 21; And the both sides of the bottom of probe housing 21 are provided with register pin 10, and register pin 10 inserts the vertical spacing groove 4b of the clamping chamber 4a of gripper 4, are provided with back-moving spring 9 between the bottom of probe housing 21 and the clamping chamber 4a bottom.
Fig. 4 is actual, and what provide is the gripper 4 of bicrystal probe 2a or 2c and the amplification assembly structure synoptic diagram of bicrystal probe 2a or 2c, perhaps the amplification assembly structure synoptic diagram of the gripper 4 of low-angle monocrystal probe 2b and low-angle probe 2b.Wide-angle monocrystal probe 2d and gripper 4 thereof are duplicate with the structure of Fig. 4, and just size is wideer.
Low-angle monocrystal probe 2b of the present invention and its angular range of wide-angle monocrystal probe 2d are respectively 0-7 degree, 60-70 degree.

Claims (2)

1. the self-adaptation supersonic detection device of a train wheel line flaw detection; Comprise linear transducer array that hole for water spraying array (3) on probe socket (1), the probe socket (1), probe socket (1) go up a plurality of ultrasonic probes of clamping and form, with linear transducer array and the control device that hole for water spraying array (3) links to each other, it is characterized in that:
Described linear transducer array is above by two horizontal rows, inside and outside two row probes (2) constitute longitudinally; Its concrete arrangement mode is: interior row are alternately arranged by bicrystal probe (2a) and low-angle monocrystal probe (2b), and the angular range of described low-angle monocrystal probe (2b) is the 0-7 degree; Outer row are alternately arranged by bicrystal probe (2c) and wide-angle monocrystal probe (2d), and the angular range of described wide-angle monocrystal probe (2d) is the 60-70 degree; And bicrystal probe (2c) different rows of the bicrystal of interior row probe (2a) and outer row;
Probe socket (1) is equipped with the thimble (6a) of induction pick-up (6) and induction pick-up (6) in the inboard of arbitrary probe (2a, 2b) of interior row; The vertical height of thimble (6a) is higher than the height of probe (2); The center that pop one's head in (2) with the interior row of arranging together in the center of thimble (6a), outer row are popped one's head in (2) is all on same straight line; And line is vertical with orbital direction, and induction pick-up (6) links to each other with control device.
2. the self-adaptation supersonic detection device of train wheel line flaw detection as claimed in claim 1; It is characterized in that: the concrete structure that described probe socket (1) is gone up the clamping ultrasonic probe is: be fixed with gripper (4) on the base (1a) of probe socket (1); The bottom of probe housing (21) embeds in the clamping chamber (4a) of gripper (4); And the both sides of the bottom of probe housing (21) are provided with register pin (10); Register pin (10) inserts the vertical spacing groove (4b) in the clamping chamber (4a) of gripper (4), is provided with back-moving spring (9) between the bottom of probe housing (21) and clamping chamber (4a) bottom.
CN2010101370883A 2010-04-01 2010-04-01 Self-adapted ultrasonic detector for online flaw detection for train wheel Active CN101788533B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102175774B (en) * 2011-01-26 2013-05-01 北京主导时代科技有限公司 Device and method for positioning probe of rim spoke flaw detection system based on mechanical hand
CN102788869A (en) * 2012-08-27 2012-11-21 南京拓控信息科技有限公司 Probe array for automatic online wheel flaw detection device
CN102854249A (en) * 2012-09-28 2013-01-02 北京交通大学 Controlled-type multichannel ultrasonic flaw detection device and controlled-type multichannel ultrasonic flaw detection method
CN103389340A (en) * 2013-08-01 2013-11-13 唐山志威科技有限公司 Automatic flaw detection equipment and method for square and flat material and rod material
CN104713948B (en) 2013-12-13 2018-12-28 通用电气公司 Wheel fault detecting device and method of detection
CN104149816B (en) * 2014-08-07 2017-05-03 成都铁安科技有限责任公司 Wheel flaw detection carrier positioning method and processor
CN104198590B (en) * 2014-09-05 2017-05-03 成都铁安科技有限责任公司 Probe array for train wheel sets
CN106394605A (en) * 2016-08-31 2017-02-15 北京主导时代科技有限公司 Wheel flaw detection system for rail train
CN106382473B (en) * 2016-09-28 2018-09-14 江苏省特种设备安全监督检验研究院 Rigid fixture and application method suitable for a variety of caliber ultrasonic guided wave detectings
CN107328864B (en) * 2017-07-17 2024-05-14 中国铁道科学研究院金属及化学研究所 Detection method of combined ultrasonic probe capable of adjusting coupling force
CN109143900A (en) * 2018-07-19 2019-01-04 中国神华能源股份有限公司 For controlling the methods, devices and systems of water injection system and eliminating noise factor
CN112098525A (en) * 2020-09-15 2020-12-18 宝武集团马钢轨交材料科技有限公司 Probe device for automatic ultrasonic detection of railway wheels and using method thereof

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Effective date of registration: 20170401

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