CN103507830B - A kind of contactless wheel rim induction installation - Google Patents
A kind of contactless wheel rim induction installation Download PDFInfo
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- CN103507830B CN103507830B CN201310432976.1A CN201310432976A CN103507830B CN 103507830 B CN103507830 B CN 103507830B CN 201310432976 A CN201310432976 A CN 201310432976A CN 103507830 B CN103507830 B CN 103507830B
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Abstract
The present invention discloses a kind of contactless wheel rim induction installation, for the on-line checkingi of wheel, the orbit of described wheel comprises load rail and guard rail, the inner side of described load rail is provided with flaw detection unit, described flaw detection unit is provided with the probe of more than two rows along orbit direction, described wheel rim induction installation, between load rail and guard rail, comprising: be installed on the contact plate on flaw detection unit, be fixedly installed in sensor below described contact plate, described sensor vertical is in orbit.Sensor in the present invention contacts good ultrasonic probe for responding to wheel position thus triggering with wheel, the present invention is by being fixed on below contact plate by sensor, sensor does not directly contact with wheel rim, but the distance of sensor and wheel rim is consistent when detecting, be not subject to the impact of wheel diameter and flange height, each sensor-triggered time is identical, effectively reduces the deviation of activation time, improves accuracy rate and the stability of triggering.This device has structure feature simple, easy to use, is suitable for promoting the use of.
Description
Technical field
The present invention relates to the online automatic detection technical field of guideway vehicle, specifically a kind of contactless wheel rim induction installation for wheel on-line checkingi improving sensor-triggered accuracy rate.
Background technology
Current locomotive wheel line flaw detection, belongs to domestic leading technology, can effectively detect the internal defect such as wheel rim and disc online.Unit of detecting a flaw in practical application is fixedly installed between the load rail of left and right track and guard rail, and the triggering of flaw detection unit ultrasonic probe is controlled by corresponding sensor.Existing line flaw detection system adopts mechanical contact and triggering mode, under the condition of locomotive sand-spraying and greasy dirt, long-time use after, easily cause clamping stagnation and the wearing and tearing of sensor in Mechanical Contact structure, thus cause the triggering precision of sensor to reduce, cause the deviation of probe activation time.Urgent need research one is contactless, induction pulsewidth is consistent, not by the wheel rim induction installation that wheel diameter and flange height affect.
Summary of the invention
For the defect of prior art, the invention provides a kind of contactless wheel rim induction installation for wheel on-line checkingi improving sensor-triggered precision.
Technical scheme of the present invention is, a kind of contactless wheel rim induction installation is provided, described contactless wheel rim induction installation is used for the on-line checkingi of wheel, the orbit of described wheel comprises load rail and guard rail, the inner side of described load rail is provided with flaw detection unit, described flaw detection unit is provided with the probe of more than two rows along orbit direction, described wheel rim induction installation is between load rail and guard rail, comprise: the contact plate be connected with flaw detection unit activity, be fixedly installed in sensor below described contact plate, described sensor vertical is in orbit.When wheel is by orbit, described contact plate contacts with the wheel rim of wheel.
Preferably, the both sides of described orbit are provided with sensor, the sensor mounted in pairs of both sides, and the sensor distance paired along orbit direction equals distance between backs of wheel flanges, and installation error is ± 5mm, to meet the distance between backs of wheel flanges requirement of different wheel.
Preferably, the total length that said contact plate is parallel to track alignment is greater than 1 or 2 wheel circumference, and the diameter of described wheel is 650-1300mm.
Preferably, the thickness of described contact plate is even, and the distance between sensor with wheel rim is consistent.Described contact plate can along with the wheel rim generation height change of differing heights, and sensor, with contact plate, identical height change occurs.
Preferably, described sensor is staggered being parallel to orbit direction.
Preferably, on every side of described orbit, adjacent sensors induction region has overlap, each sensor all can be responded to the wheel rim in its induction range, thus triggers the probe contacted with wheel, and the distance of adjacent sensors is 2-8mm along orbit vertical direction.
Compared with prior art, tool of the present invention has the following advantages:
The present invention by arranging contactless wheel rim induction installation inside rail, contact plate is inserted between inductor and wheel rim, solve sensor for a long time by locomotive friction and impaired, cause the problem that sensor-triggered precision is low, the thickness of each contact plate is identical, sensor is fixedly installed in the below of contact plate, and sensor sensing distance is consistent, can not be subject to the impact of different wheel diameter and flange height, effectively reduce the deviation of activation time, and enhance the stability of system triggers.; Be provided with staggered sensor at bilateral orbit, actv. adds induction area, can adapt to the wheel that difference takes turns internal distance; Induction installation structure is simple, has feature easy to use, can promote the use of.
Accompanying drawing explanation
The wheel rim induction installation front view that Fig. 1 provides for the embodiment of the present invention;
The wheel that Fig. 2 provides for the embodiment of the present invention is through the front view of wheel rim induction installation;
The plan structure schematic diagram of the wheel rim induction installation that Fig. 3 provides for the embodiment of the present invention;
Reference numeral is: unit of 1, detecting a flaw, 2, contact plate, 3, sensor, 4, probe, 5, load rail, 6, guard rail, 7, wheel.
Detailed description of the invention
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with the drawings and specific embodiments, to the present invention, periodically the encapsulation of scanning ultrasound data and the method and apparatus of analysis are described in further detail.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
Contact with wheel with the ultrasonic probe of flaw detection to overcome sensor, when wheel is by orbit, sensor for on-line checkingi wheel is worn, thus can not detect a flaw to wheel by Triggered ultrasound ripple probe in time, the fault in process vehicle operating in time.The present invention makes full use of contact plate and contacts with wheel rim, and is flexibly connected with flaw detection unit, can along with the wheel rim generation height change of differing heights, and sensor, with contact, identical height change occurs, and meets sensor-triggered requirement accurately.
As shown in Figure 1: a kind of contactless wheel rim induction installation, for the on-line checkingi of wheel, this device is arranged between load rail 5 and guard rail 6 double track along wheel working direction, is greater than one or two wheel circumference along locomotive working direction arrangement length.Device comprises the contact plate 2 be arranged on flaw detection unit 1, and the sensor 3 be fixed on contact plate 2, this induction installation is arranged between load rail 5 and guard rail 6, sensor 3 is positioned at the below of contact plate 2, when locomotive car wheel passes through, contact plate 2 is below wheel rim and contact with wheel rim, and sensor 3 is occurring in pairs perpendicular to track alignment, to be parallel to track alignment staggered.
Contactless wheel rim induction installation of the present invention is arranged between the load rail 5 of railway line both sides and guard rail 6.As shown in Figure 2: when wheel 7 passes through, wheel rim contacts with contact plate 2, and height change occurs contact plate 2, and because sensor 3 is fixed on contact plate 2, now sensor 3, with contact plate, identical height change occurs.When wheel rim arrives the induction range of sensor 3, sensor 3 is triggered, thus triggers the probe 4 with wheel 7 good contact; When wheel rim leaves the induction range of sensor 3, sensor 3 stops triggering, and the probe 4 now corresponded also stops triggering.Because sensor 3 contacts with bottom contact plate 2, and contact plate 2 thickness is even, so sensor 3 responds to flange height unanimously, the activation time of sensor 3 is identical.
By sensor 3 perpendicular to mounted in pairs in track alignment, the sensor 3 of the railway line left and right sides is when wheel rim arrives its induction range, all can trigger corresponding probe 4, avoid position deviation that wheel about 7 play causes thus affect the triggering of sensor 3.
The distance of often pair of sensor 3 is decided to be 1381mm, make the wheel 7 of the left and right sides by time, wheel rim just can drop on the center of sensor respectively, makes triggering effect better.
Sensor 3 is to be parallel to track alignment staggered, and on single-track, adjacent sensors induction region has overlap.As shown in Figure 3: often pair of sensor 3 is all offset 5mm to the right left or simultaneously on contact plate 2 center simultaneously, add induction range, so no matter when take turns internally apart from larger or less time, if the sensor of side 3 cannot be responded to, all can be responded to by the sensor 3 of opposite side thus be triggered, can the wheel that difference takes turns internal distance be adapted to preferably.
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred implementation should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. a contactless wheel rim induction installation, described contactless wheel rim induction installation is used for the on-line checkingi of wheel, the orbit of described wheel comprises load rail and guard rail, the inner side of described load rail is provided with flaw detection unit, described flaw detection unit is provided with the probe of more than two rows along orbit direction, it is characterized in that, described wheel rim induction installation is between load rail and guard rail, comprise: the contact plate be connected with flaw detection unit activity, be fixedly installed in sensor below described contact plate, described sensor vertical is in orbit; The both sides of described orbit are provided with sensor, the sensor mounted in pairs of both sides, and the sensor distance paired along orbit direction equals distance between backs of wheel flanges, and installation error is ± 5mm; Described sensor is staggered being parallel to orbit direction; On every side of described orbit, adjacent sensors induction region has overlap, and the distance of adjacent sensors is 2-8mm along orbit vertical direction.
2. a kind of contactless wheel rim induction installation as claimed in claim 1, is characterized in that, the total length that described contact plate is parallel to track alignment is greater than 1 or 2 wheel circumference, and the diameter of described wheel is 650-1300mm.
3. a kind of contactless wheel rim induction installation as claimed in claim 2, it is characterized in that, the thickness of described contact plate is even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310432976.1A CN103507830B (en) | 2013-09-22 | 2013-09-22 | A kind of contactless wheel rim induction installation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310432976.1A CN103507830B (en) | 2013-09-22 | 2013-09-22 | A kind of contactless wheel rim induction installation |
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| CN103507830A CN103507830A (en) | 2014-01-15 |
| CN103507830B true CN103507830B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310432976.1A Active CN103507830B (en) | 2013-09-22 | 2013-09-22 | A kind of contactless wheel rim induction installation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104477209B (en) * | 2014-11-18 | 2017-01-04 | 南京航空航天大学 | Automatic online detection system and method for railway locomotive vehicle wheel scratching |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4407072A (en) * | 1981-11-13 | 1983-10-04 | Southern Railway Company | Thin flange and loose wheel detection system |
| CA1276703C (en) * | 1988-03-24 | 1990-11-20 | Darren P.L. Maine | Method for detecting profile defects on flanged steel wheels using microwave frequency resonator cavities |
| DE4312876B4 (en) * | 1993-04-20 | 2004-04-08 | IBEG Maschinen- und Gerätebau GmbH | Device for measuring and determining the change on the tread of a wheel of rail vehicles |
| JP3926244B2 (en) * | 2002-09-26 | 2007-06-06 | 株式会社島津製作所 | Imaging device |
| DE10336042C5 (en) * | 2003-08-01 | 2011-01-20 | Windhoff Bahn- Und Anlagentechnik Gmbh | Arrangement and method for testing wheels of a rail vehicle |
| CN202686388U (en) * | 2011-12-15 | 2013-01-23 | 南京拓控信息科技有限公司 | Automatic protection device for wheel online automatic detection probe array |
| CN102798533B (en) * | 2012-08-27 | 2014-11-05 | 南京拓控信息科技有限公司 | Automatic protection device of wheel on-line detecting probe array |
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