CN105823825A - Belt ultrasonic detecting device - Google Patents
Belt ultrasonic detecting device Download PDFInfo
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- CN105823825A CN105823825A CN201610217046.8A CN201610217046A CN105823825A CN 105823825 A CN105823825 A CN 105823825A CN 201610217046 A CN201610217046 A CN 201610217046A CN 105823825 A CN105823825 A CN 105823825A
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- wheel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/043—Analysing solids in the interior, e.g. by shear waves
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- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a belt ultrasonic detecting device which comprises a wheel type probe set, a multi-channel ultrasonic transmitting and receiving instrument, a field programmable gate array data acquisition and signal processor, an LCD display and parameter controller and a mechanical control and sound and light alarm, wherein the wheel type probe set comprises an ultrasonic transmitting probe wheel and an ultrasonic receiving probe wheel; the ultrasonic transmitting probe wheel and the ultrasonic receiving probe wheel form a receiving/transmitting structure combination; each of the probe wheels adopts a wheel type structure; a shell is made of a sound transmission material; a cavity inside the shell is used for allowing an ultrasonic receiving sensor or an ultrasonic transmitting sensor to be placed in; the part between the ultrasonic receiving sensor or the ultrasonic transmitting sensor and the shell is filled with a coupling agent. The shell is in close contact with the lower surface of a belt and can freely rotate under the drive of the belt. Through analysis of each group of ultrasonic signals transmitted by the ultrasonic receiving sensor and acquired by the ultrasonic transmitting sensor, whether the defects exist or not is judged, and meanwhile, alarm parking and other operations are finished.
Description
Technical field
The invention belongs to ultrasonic examination field, particularly to a kind of belt supersonic detection device.
Background technology
Ribbon conveyer is the large artery trunks of factories and miness production and transport, and its Steel cord rubber conveyer belt (belt) once occurs longitudinal tear, it will bring great direct and consequential damage；The especially steel cable core conveying belt of high speed, distance, high inclination-angle, its loss is bigger.Conveyer belt longitudinal tear accident happens occasionally, and is worth the even more conveyer belt of millions of unit, longitudinal tear accident once occurs, may all damage within a very short time, cause huge economic loss.I.e. allow to repair, it is also desirable to suitable manpower and time, normal production is produced strong influence.The usage amount of China Leather belt conveyor was increasing in recent years, and the scope of its application is increasingly wider, and the accident that longitudinal tear occurs is more and more frequent.That develops that a kind of reliable and practical conveyer belt longitudinal tear supervising device becomes is the most necessary and urgent, it is achieved to the discovery in time of conveyer belt longitudinal tear fault, shut down in time, loss is reduced to minimum.
Summary of the invention
The invention provides a kind of belt supersonic detection device.Receiving terminal Wave anomaly can be caused, by the demarcation of unusual waveforms and identification are completed defects detection due to factors such as the diffraction of ultrasound wave, diffraction when the ultrasound wave of this device runs into crack during belt internal communication.
The present invention is achieved through the following technical solutions:
nullA kind of belt supersonic detection device，Mainly include wheel seach unit group、Channel ultrasonic launches receiving instrument、Field programmable gate array data acquisition and signal processor、LCD shows and parameter controller and Mechanical course and sound and light alarm are constituted，Described wheel seach unit group includes ultrasound emission probe wheel、Ultrasonic reception probe wheel，Ultrasound emission probe wheel includes bracing frame、Rotary shaft、Rotate wheel、Band seal washer bearing、Ultrasound emission sensor，Rotate the hollow hub that wheel is made for acoustic window material，Rotate wheel to be rotatably installed in rotary shaft by band seal washer bearing，The part being positioned at the cavity rotating wheel in rotary shaft is provided with fixing seat，For fixing ultrasound emission sensor，On the two ends fixing support rack of rotary shaft，One end of rotary shaft is provided with the couplant through hole leading to the cavity rotating wheel from outward，In couplant enters the cavity rotating wheel，The other end of rotary shaft is provided with the wire guide leading to ultrasound emission sensor from outward，Enter for wire and link with ultrasound emission sensor，Ultrasonic reception probe wheel construction is in addition to ultrasonic reception sensor substitutes ultrasound emission sensor，Other structure is identical with ultrasound emission probe wheel，Ultrasonic reception sensor and ultrasound emission sensor towards relative tilt，The receiving and transmitting signal port that ultrasonic reception sensor launches receiving instrument with channel ultrasonic respectively with ultrasound emission sensor is connected，Channel ultrasonic is launched receiving instrument and is used for producing ultrasonic probe excitation and receiving transducer flaw detection signal，Field programmable gate array data acquisition and signal processor are for the collection to ultrasound detection signal、The qualitative and quantitative analysis of flaw detection signal processes，LCD shows and parameter controller is for the setting of systematic parameter、Amendment and preservation，Sound and light alarm is carried out to facilitate staff to fix a breakdown in time to reduce loss when Mechanical course and sound and light alarm are the most normal mainly for detection of the duty of equipment and detect defect.
Further, described ultrasound emission probe wheel, ultrasonic reception probe wheel are respectively fixed on the machine frame, and organic frame provides resilient support.
Further, described wheel seach unit group includes at least two group ultrasound emission probe wheels, ultrasonic reception probe, ultrasound emission probe wheel, ultrasonic reception probe wheel are arranged in the lower surface of Steel cord rubber conveyer belt, each ultrasound emission probe wheel, ultrasonic reception probe take turns upwards malleation at the lower surface of Steel cord rubber conveyer belt.
Further, the hollow hub that described rotation wheel is made for polyurethane acoustic window material.
The invention provides a kind of belt supersonic detection device, the ultrasound emission probe wheel of the wheel seach unit group of this device, ultrasonic reception probe wheel composition one group transmit/receive structural grouping, each probe wheel all uses wheeled construction, shell is that acoustic window material is made, enclosure cavity is used for laying between ultrasonic reception sensor or ultrasound emission sensor, ultrasonic reception sensor or ultrasound emission sensor and shell filling couplant.Shell is in close contact with belt lower surface, can be freely rotatable under the driving of belt.By the analysis of the ultrasonic signal often organizing ultrasonic reception sensor emission and ultrasound emission sensor acquisition is judged whether defect exists, complete the operations such as warning parking simultaneously.Owing to when ultrasound wave runs into crack during belt internal communication, the factor such as diffraction due to ultrasound wave, diffraction can cause receiving terminal Wave anomaly, by the demarcation of unusual waveforms and identification are completed defects detection.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail.
Fig. 1 is the Cleaning Principle schematic diagram of the present invention；
Fig. 2 is the system architecture diagram of the present invention；
Fig. 3 is the wheel seach unit group installation site schematic diagram of the present invention；
Fig. 4 is the ultrasound emission probe wheel construction schematic diagram of the present invention；
Fig. 5 is the ultrasonic reception probe wheel construction schematic diagram of the present invention.
Detailed description of the invention
The present invention is further described with example below in conjunction with the accompanying drawings.
The present invention uses Ultrasonic Pulse-Echo method to detect, its Cleaning Principle is as shown in Figure 1, first probe (ultrasonic transducer, figure is not depending on illustrating) it is placed on test surface 10, probe sends incidence wave 11 (ultrasonic pulse of electric pulse excitation), and, by being coupled into detected workpiece 1, such as zero defect in workpiece 1, it can travel to the bottom surface 12 of workpiece 1 always, according to principle of reflection, ultrasonic pulse is reflected by bottom surface 12 and is returned second probe.The ping of return is become electric pulse again by second probe, instrument show；If defective in workpiece 1, such as tear groove 13, ultrasonic pulsative signal can change at the aspect such as waveform and amplitude than zero defect signal, be may determine that the Position Approximate that has that it's too late of defect by these changes.
According to this principle, the present invention designs a kind of belt supersonic detection device 2, as in figure 2 it is shown, mainly include that wheel seach unit group 3, channel ultrasonic launch receiving instrument 4, FPGA (field programmable gate array) data acquisition and signal processor 5, LCD show and parameter controller 6 and Mechanical course and sound and light alarm 7 are constituted.Wherein, wheel seach unit group 3 is used for detecting in Steel cord rubber conveyer belt 8 with or without longitudinal tear；Channel ultrasonic is launched receiving instrument 4 and is used for producing ultrasonic probe excitation and receiving transducer flaw detection signal；FPGA data signal sampling and processing device 5 is for processing the qualitative and quantitative analysis of the collection of ultrasound detection signal, flaw detection signal, qualitative analysis i.e. judges in detected workpiece whether existing defects, can receive in signal the amplitude of whether existing defects ripple or end ripple signal according to ultrasonic probe and judge；Quantitative analysis i.e. judges the size of defect in detected workpiece, can judge the size of defect according to the ratio of defect waves amplitude in Artificial discontinuity with the unknown defective waveform amplitude being detected；LCD shows and parameter controller 6 is used for the setting of systematic parameter, revises and preserve, so LCD shows and parameter controller 6 can use general computer as terminal；Sound and light alarm is carried out to facilitate staff to fix a breakdown in time to reduce loss when Mechanical course and sound and light alarm 5 are the most normal mainly for detection of the duty of equipment and detect defect, conveyer belt is scratched if any sharp objects, abraded area will be made increasing with the transmission of conveyer belt as got rid of not in time, wherein channel ultrasonic launches receiving instrument 4, FPGA (field programmable gate array) data acquisition and signal processor 5, LCD show and parameter controller 6 and Mechanical course and sound and light alarm 7 are employing prior art device.
nullSuch as Fig. 2、Fig. 3、Fig. 4、Shown in Fig. 5，Wheel seach unit group 3 includes ultrasound emission probe wheel 31、Ultrasonic reception probe wheel 32，Ultrasound emission probe wheel 31 includes bracing frame 311、Rotary shaft 312、Rotate wheel 313、Band seal washer bearing 314、Ultrasound emission sensor 315，Rotate wheel 313 for hollow hub that polyurethane is material，Rotate wheel 313 to be rotatably installed in rotary shaft 312 by band seal washer bearing 314，The part being positioned at the cavity 3131 rotating wheel 313 in rotary shaft 312 is provided with fixing seat 316，For fixing ultrasound emission sensor 315，The two ends 3121 of rotary shaft 312、On 3122 fixing support racks 311，One end 3121 of rotary shaft 312 is provided with the couplant through hole 3123 leading to the cavity 3131 rotating wheel 313 from outward，In couplant enters the cavity 3131 rotating wheel 313，The other end 3122 of rotary shaft 312 is provided with the wire guide 3124 leading to ultrasound emission sensor 315 from outward，Enter for wire 3125 and link with ultrasound emission sensor 315，Ultrasonic reception probe wheel 32 structures are in addition to ultrasonic reception sensor 325 substitutes ultrasound emission sensor 315，Other structure is identical with ultrasound emission probe wheel 31，Ultrasonic reception sensor 325 and ultrasound emission sensor 315 towards relative tilt，The receiving and transmitting signal port that ultrasonic reception sensor 325 launches receiving instrument 4 with channel ultrasonic respectively with ultrasound emission sensor 315 is connected.
As shown in Figure 3, Figure 4, ultrasound emission probe wheel 31, ultrasonic reception probe wheel 32 are separately fixed in frame 33,34, time the most in working order, hollow hub rotates, ultrasound emission sensor, ultrasonic reception sensing station in cavity maintain static, and organic frame 33,34 provides resilient support, to ensure that ultrasound emission probe wheel 31, ultrasonic reception probe wheel 32 can be fitted with detection Steel cord rubber conveyer belt 8 (belt) lower surface 81 closely.
As shown in Figure 5, four groups of ultrasound emission probe wheels 31, ultrasonic reception probes take turns 32 lower surfaces being arranged in Steel cord rubber conveyer belt 8, being respectively arranged at A, B, C, D is ultrasound emission probe wheel 31, and being respectively arranged at a, b, c and d is ultrasound emission probe wheel 32.A and a, B and b, C and c, the ultrasound emission probe wheel 31 of D and d, ultrasonic reception probe wheel 32 one group of wheel seach unit group 3 of composition, totally four groups.Each ultrasound emission probe wheel 31, ultrasonic reception probe wheel 32 upwards malleation are at the lower surface 81 of Steel cord rubber conveyer belt 8, being rotated by of Steel cord rubber conveyer belt 8, each ultrasound emission probe wheel 31, the rotary shaft of ultrasonic reception probe wheel 32 are strictly perpendicular to Steel cord rubber conveyer belt 8 tape running direction, are positioned on the transverse section 82 of same Steel cord rubber conveyer belt 8 with the wheel axis of the emission sensor in group and reception sensor.
As shown in Figure 2, during detection, channel ultrasonic is launched receiving instrument 4 and is used Japan's JPR-10CN crack detector to launch driving pulse, and then Steel cord rubber conveyer belt 8 is detected by triggering ultrasound emission sensor 315, the ultrasonic signal that detection returns is sent to JPR-10CN crack detector after receiving except ultrasonic reception sensor 325, FPGA (field programmable gate array) data acquisition and signal processor 5 are transferred to LCD after JPR-10CN crack detector obtains testing result signal and carries out threshold process and show and parameter controller 6, LCD shows and parameter controller 6 uses general purpose computer end to show.Through practical proof, the system stability of this present invention a kind of belt supersonic detection device 2, reliable, it is achieved that qualitative, the quantitative NDT to Steel cord rubber conveyer belt 8.
The present invention can detect reinforcing bar balata belt and the nylon muscle balata belt of various width, can identify that the vertical torn grain degree of depth of minimum is 10mm, and minimum widith is 1mm.
Claims (4)
- null1. a belt supersonic detection device，It is characterized in that: this device includes wheel seach unit group、Channel ultrasonic launches receiving instrument、Field programmable gate array data acquisition and signal processor、LCD shows and parameter controller and Mechanical course and sound and light alarm are constituted，Described wheel seach unit group includes ultrasound emission probe wheel、Ultrasonic reception probe wheel，Ultrasound emission probe wheel includes bracing frame、Rotary shaft、Rotate wheel、Band seal washer bearing、Ultrasound emission sensor，Rotate the hollow hub that wheel is made for acoustic window material，Rotate wheel to be rotatably installed in rotary shaft by band seal washer bearing，The part being positioned at the cavity rotating wheel in rotary shaft is provided with fixing seat，For fixing ultrasound emission sensor，On the two ends fixing support rack of rotary shaft，One end of rotary shaft is provided with the couplant through hole leading to the cavity rotating wheel from outward，In couplant enters the cavity rotating wheel，The other end of rotary shaft is provided with the wire guide leading to ultrasound emission sensor from outward，Enter for wire and link with ultrasound emission sensor，Ultrasonic reception probe wheel construction is in addition to ultrasonic reception sensor substitutes ultrasound emission sensor，Other structure is identical with ultrasound emission probe wheel，Ultrasonic reception sensor and ultrasound emission sensor towards relative tilt，The receiving and transmitting signal port that ultrasonic reception sensor launches receiving instrument with channel ultrasonic respectively with ultrasound emission sensor is connected，Channel ultrasonic is launched receiving instrument and is used for producing ultrasonic probe excitation and receiving transducer flaw detection signal，Field programmable gate array data acquisition and signal processor are for the collection to ultrasound detection signal、The qualitative and quantitative analysis of flaw detection signal processes，LCD shows and parameter controller is for the setting of systematic parameter、Amendment and preservation，Sound and light alarm is carried out to facilitate staff to fix a breakdown in time to reduce loss when Mechanical course and sound and light alarm are the most normal mainly for detection of the duty of equipment and detect defect.
- 2. a kind of belt supersonic detection device as claimed in claim 1, it is characterised in that: described ultrasound emission probe wheel, ultrasonic reception probe wheel are respectively fixed on the machine frame, and organic frame provides resilient support.
- 3. a kind of belt supersonic detection device as claimed in claim 1, it is characterized in that: described wheel seach unit group includes at least two group ultrasound emission probe wheels, ultrasonic reception probe, ultrasound emission probe wheel, ultrasonic reception probe wheel are arranged in the lower surface of Steel cord rubber conveyer belt, each ultrasound emission probe wheel, ultrasonic reception probe take turns upwards malleation at the lower surface of Steel cord rubber conveyer belt.
- 4. a kind of belt supersonic detection device as claimed in claim 1, it is characterised in that: described rotates the hollow hub that wheel is made for polyurethane acoustic window material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610217046.8A CN105823825A (en) | 2016-03-29 | 2016-03-29 | Belt ultrasonic detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610217046.8A CN105823825A (en) | 2016-03-29 | 2016-03-29 | Belt ultrasonic detecting device |
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| CN105823825A true CN105823825A (en) | 2016-08-03 |
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| CN201610217046.8A Pending CN105823825A (en) | 2016-03-29 | 2016-03-29 | Belt ultrasonic detecting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267514A (en) * | 2018-03-20 | 2018-07-10 | 陕西省文物保护研究院 | Nonmetallic ultrasound computed tomography detecting system |
| CN118090924A (en) * | 2024-04-25 | 2024-05-28 | 广东汕头超声电子股份有限公司 | Detection method for longitudinal tear seam of conveyor belt |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267514A (en) * | 2018-03-20 | 2018-07-10 | 陕西省文物保护研究院 | Nonmetallic ultrasound computed tomography detecting system |
| CN108267514B (en) * | 2018-03-20 | 2024-02-02 | 陕西省文物保护研究院 | Nonmetal ultrasonic CT detection system |
| CN118090924A (en) * | 2024-04-25 | 2024-05-28 | 广东汕头超声电子股份有限公司 | Detection method for longitudinal tear seam of conveyor belt |
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Application publication date: 20160803 |