CN101191766A - Strain roll on-line abrasion detection device and detection method - Google Patents
Strain roll on-line abrasion detection device and detection method Download PDFInfo
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- CN101191766A CN101191766A CNA2006101344685A CN200610134468A CN101191766A CN 101191766 A CN101191766 A CN 101191766A CN A2006101344685 A CNA2006101344685 A CN A2006101344685A CN 200610134468 A CN200610134468 A CN 200610134468A CN 101191766 A CN101191766 A CN 101191766A
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- jockey pulley
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Abstract
The invention provides a detection device for tension roller on-line abrasion. The circumference of an end cover (2) of the tension roller is provided with a plurality of convex blocks (5), the position with a certain distance from the convex blocks (5) is provided with a proximity switch (1) connected with a PLC controller; the PLC makes a data processing to the signal collected by the proximity switch (1), then the processing result is output to an alarm device. At the same time, a method using the device to detect is also provided; the linear speed Vg of the tension roller obtained by the calculation of the PLC and the actual speed Vd of mill strips are compared, when the Vg plus V0 minus Vd is less than 0, the alarm signal is sent to a HMI picture to prompt the production operators and the equipment personnel to check, wherein: Vg is the linear speed of the tension roller; V0 is a constant, the value range is between 0 and 2m/s; Vd is the actual speed of strips and is obtained by the detection of a laser speed gun. The invention can send an alarm message when the tension roller is close to the abrasion, to prompt the production operators and the equipment personnel to check, can decrease the surface scratches of the strips and avoid the quality accidents.
Description
Technical field
The present invention relates to a kind of online measuring technique, especially a kind of on-line measuring device and detection method that is used for the cold continuous rolling jockey pulley.
Technical background
Jockey pulley plays in cold continuous rolling and is with steel to form certain cornerite, makes the metastable effect of tension force when operation of band steel.Some labile factors owing in assembling reason or the milling train production run may cause each jockey pulley between frame to grind dead phenomenon.If jockey pulley grinds extremely, with the band steel relative slip takes place then, produce scuffing, influence plate surface quality.In addition, because belt steel surface is by manually checking, its inspection speed is well below the speed of production of milling train, so the overlooker normally counts inspection once every certain volume.So, when the overlooker finds that there is the phenomenon of scuffing on certain winding steel surface by the time, in fact there has been a lot of winding steel surface to be scratched, caused a large amount of mass defects.
Summary of the invention
The object of the present invention is to provide a kind of strain roll on-line abrasion detection device and detection method, make the jockey pulley bearing near loss, send warning message, thereby avoid the generation of quality accident, reduce belt steel surface and scratch.
The object of the present invention is achieved like this, because the jockey pulley bearing is the oil-air lubrication bearing, does not change at the axle center, can not directly connect the code-disc signal, thereby consider to obtain near the pulse signal of switch by detection the rotating speed of jockey pulley.Simultaneously, for the ease of near the switch detection signal, also jockey pulley has been done further improvement.Concrete scheme is, a kind of strain roll on-line abrasion detection device, several projections are set on the circumference of jockey pulley end cap, apart from the projection certain distance be provided with one be connected with the PLC controller near switch, PLC will export to warning device with result after will carrying out data processing near the signal of switch collection.
A kind of method of utilizing above-mentioned strain roll on-line abrasion detection device to detect is characterized in that: by the jockey pulley linear velocity V of PLC by calculating
gWith milling train band steel actual speed V
dCompare, work as V
g+ V
0-V
d＜0 o'clock, then send alerting signal, point out production operation personnel and equipment personnel to check, wherein: V
gBe the jockey pulley linear velocity; V
0Be constant, span is 0～2 meter per second; V
dBand steel actual speed is drawn by the laser velocimeter detection.
The present invention is owing to adopted above-mentioned strain roll on-line abrasion detection device and corresponding detecting method thereof, can send warning message during near loss at the jockey pulley bearing, prompting production operation personnel and equipment personnel check, can reduce belt steel surface and scratch, and avoid quality accident.
Description of drawings
Fig. 1 is the structural representation of strain roll on-line abrasion detection device of the present invention;
Fig. 2 is a kind of connected mode near switching signal and PLC controller;
The jockey pulley end cover structure synoptic diagram of Fig. 3 for matching with Fig. 2;
Fig. 4 is the another kind of connected mode near switching signal and PLC controller;
The jockey pulley end cover structure synoptic diagram of Fig. 5 for matching with Fig. 4.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Shown in Fig. 1～5, a kind of strain roll on-line abrasion detection device, it is characterized in that: several projections 5 are set on the circumference of jockey pulley end cap 2, apart from projection 5 certain distances be provided with one be connected with the PLC controller near switch 1 (can will be installed on the jockey pulley bearing seat 4) near switch 1, PLC will export to warning device with result after will carrying out data processing near the signal that switch 1 is gathered.A kind of method of utilizing above-mentioned strain roll on-line abrasion detection device to detect is by the jockey pulley linear velocity V of PLC by calculating
gWith milling train band steel actual speed V
dCompare, work as V
g+ V
0-V
d＜0 o'clock, then on HMI (man-machine interface) picture, send alerting signal, prompting production operation personnel and equipment personnel check that warning message need just can reset after confirming on the HMI.Wherein: V
gBe the jockey pulley linear velocity; V
0Be constant, span is at 0～2 meter per second; V
dBe band steel actual speed, draw by the laser velocimeter detection.
Shown in Fig. 2,3, being connected to the PLC controller near switching signal two kinds of schemes are arranged in the strain roll on-line abrasion detection device of the present invention, a kind of scheme is: will be connected with the PLC controller by a digital quantity input signal on the remote I/O station (as ET200) near switching signal.Its advantage is to save the cable laying expense, increase a digital quantity input signal and get final product on original remote I/O station, shortcoming is that sample rate is relatively slow, can only guarantee the jockey pulley pulse of sampling weekly, through actual observation, 16 pulses of can sampling p.s..With projection 5 quantity on corresponding jockey pulley end cap 2 circumference of this connectivity scenario be one, the radian of projection 5 is π, is equivalent to install the half block annulus additional at jockey pulley end cap 2 places.Jockey pulley 3 linear velocity V
gBe the pulse number that receives p.s. by PLC with near switch accumulative total divided by 1 (number of slugs on the jockey pulley end cap circumference), i.e. the number of turns of jockey pulley rotation p.s. is again by formula V
g=n * D * π calculates, wherein: V
gBe the jockey pulley linear velocity; N is the number of turns of jockey pulley rotation p.s.; D is the diameter of jockey pulley; π is a circular constant.
Another kind of scheme is: directly be connected with the digital quantity input module of PLC controller near switching signal.Its advantage is that sample rate is accelerated greatly, can sample p.s. above 50, can satisfy the needs that basic jockey pulley speed is judged, shortcoming is to be connected to motor room PLC switch board to signal from the scene always, distance is longer, and the price of the digital quantity input module on the CPU framework is higher than the price of remote I/O module.With projection 5 quantity on corresponding jockey pulley end cap 2 circumference of this connectivity scenario be two, and evenly distribute, the radian of each projection 5 is a pi/2, is equivalent at jockey pulley end cap 2 places two annulus (shown in Fig. 4,5) that radian is a pi/2 that evenly distribute.The jockey pulley linear velocity V of this scheme
gBe the pulse number that receives p.s. by PLC with near switch accumulative total divided by 2 (number of slugs on the jockey pulley end cap circumference), i.e. the number of turns of jockey pulley rotation p.s. is again by formula V
g=n * D * π calculates, wherein: V
gBe the jockey pulley linear velocity; N is the number of turns of jockey pulley rotation p.s.; D is the diameter of jockey pulley; π is a circular constant.
Claims (5)
1. strain roll on-line abrasion detection device, it is characterized in that: several projections (5) are set on the circumference of jockey pulley end cap (2), apart from projection (5) certain distance be provided with one be connected with the PLC controller near switch (1), PLC will export to warning device with result after will carrying out data processing near the signal that switch (1) is gathered.
2. strain roll on-line abrasion detection device according to claim 1, it is characterized in that: projection (5) quantity on jockey pulley end cap (2) circumference is one, the radian of projection (5) is π, and the signal of gathering near switch (1) is connected with the PLC controller by a digital quantity input signal on the remote I/O station.
3. strain roll on-line abrasion detection device according to claim 1, it is characterized in that: projection (5) quantity on jockey pulley end cap (2) circumference is two, and evenly distribute, the radian of each projection (5) is a pi/2, and the signal of gathering near switch (1) directly is connected with the digital quantity input module of PLC controller.
4. method of utilizing the described strain roll on-line abrasion detection device of claim 1～3 to detect is characterized in that: by the linear velocity V of PLC by the jockey pulley (3) that calculates
gWith milling train band steel actual speed V
dCompare, work as V
g+ V
0-V
d＜0 o'clock, then send alerting signal, point out production operation personnel and equipment personnel to check, wherein: V
gBe the jockey pulley linear velocity; V
0Be constant, span is 0～2 meter per second; V
dBe band steel actual speed, draw by the laser velocimeter detection.
5. strain roll on-line abrasion detection method according to claim 4 is characterized in that: jockey pulley linear velocity V
gBe the pulse number that receives p.s. by PLC with near switch accumulative total divided by projection (5) quantity on jockey pulley end cap (2) circumference, i.e. the number of turns of jockey pulley rotation p.s. is again by formula V
g=n * D * π calculates, wherein: V
gBe the jockey pulley linear velocity; N is the number of turns of jockey pulley rotation p.s.; D is the diameter of jockey pulley; π is a circular constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101344685A CN101191766B (en) | 2006-11-30 | 2006-11-30 | Strain roll on-line abrasion detection device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101344685A CN101191766B (en) | 2006-11-30 | 2006-11-30 | Strain roll on-line abrasion detection device and detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101191766A true CN101191766A (en) | 2008-06-04 |
| CN101191766B CN101191766B (en) | 2011-09-28 |
Family
ID=39486899
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101344685A Expired - Fee Related CN101191766B (en) | 2006-11-30 | 2006-11-30 | Strain roll on-line abrasion detection device and detection method |
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| CN (1) | CN101191766B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648219B (en) * | 2008-08-13 | 2011-07-27 | 鞍钢股份有限公司 | Cold rolling tension roll speed detection system and control method thereof |
| CN105173613A (en) * | 2015-09-29 | 2015-12-23 | 中国神华能源股份有限公司 | Device and method for detecting running speed of belt conveyer |
-
2006
- 2006-11-30 CN CN2006101344685A patent/CN101191766B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648219B (en) * | 2008-08-13 | 2011-07-27 | 鞍钢股份有限公司 | Cold rolling tension roll speed detection system and control method thereof |
| CN105173613A (en) * | 2015-09-29 | 2015-12-23 | 中国神华能源股份有限公司 | Device and method for detecting running speed of belt conveyer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101191766B (en) | 2011-09-28 |
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Granted publication date: 20110928 Termination date: 20211130 |
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