CN2574053Y - Capacitance probe rotary ultrasonic flow detector - Google Patents
Capacitance probe rotary ultrasonic flow detector Download PDFInfo
- Publication number
- CN2574053Y CN2574053Y CN 02282247 CN02282247U CN2574053Y CN 2574053 Y CN2574053 Y CN 2574053Y CN 02282247 CN02282247 CN 02282247 CN 02282247 U CN02282247 U CN 02282247U CN 2574053 Y CN2574053 Y CN 2574053Y
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- CN
- China
- Prior art keywords
- water tank
- probe
- capacitor
- water
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model relates to a rotary ultrasonic flaw detector with a capacitance probe, which is provided with a machine frame, wherein a machine base is arranged on the machine frame, and a water tank shaft is arranged on the machine base; a probe frame is arranged on the periphery of the water tank shaft, and a probe is arranged on the probe frame. The utility model is characterized in that at least two coupling capacitors are arranged on the water tank shaft; each coupling capacitor is composed of an inner ring and an outer ring of a capacitor, wherein the inner ring of the capacitor is fixed on the water tank shaft, and the outer ring of the capacitor is fixed on the machine base and corresponds to the inner ring; the end part of the water tank shaft is provided with a water throwing tray. The utility model has the advantages that the non-contact connection is adopted, namely that the capacitance coupling mode and the rotation mode of the water tank shaft are adopted, so the signal amount loss is small; simultaneously, the electrical noise is low because the rotation of the water tank overcomes the interference of the water bloom of the water spray, so the signal to noise ratio of the flaw detection is improved greatly, the sensitivity of the flaw detection is assured, and the false alarm or the leakage alarm is prevented, Furthermore, because of the non-contact connection, the probe water tank has high rotation speed which can reach from 2000 to 3000 revolutions/ minute, and the detection speed can be improved by times.
Description
Technical field
The utility model relates to the non-destructive detecting device technical field of metal pipe material, specifically, is a kind of capacitance probe rotary ultrasonic ripple metal pipe material defectoscope.
Background technology
At present, existing multiple with the equipment that ultrasonic technology is detected a flaw to metal pipe material, the general two big classes that are divided into: a class be the tubing straight ahead simultaneously ultrasonic probe rotate around tubing; Another kind of is that the tubing spiral is preceding and then ultrasonic probe is motionless.
Wherein last kind equipment can be divided into water jet again and the water tank shaft type by the probe coupling scheme.Ultrasonic instrument maintains static because probe rotates, probe is connected general employing brush mode with electric signal between the instrument, domestic existing probe rotary ultrasonic ware defectoscope, all using brush to pop one's head in couples together with instrument, by brush with the electrical signal transfer of rotating detector to ultrasonic instrument, many simultaneously employings are water jet, the sort signal connected mode is to have the contact to connect, because loose contact behind brush and the slip ring surface abrasion, tend to produce many undesired signals, i.e. electrical noise, the water spray mode has acoustic noise simultaneously, make the signal to noise ratio (S/N ratio) of flaw detection signal descend, report by mistake or fail to report thereby cause.Brush probe rotational speed is lower, and the highest have only 750 rev/mins, makes detection speed lower.
Summary of the invention
The purpose of this utility model provides a kind of capacitance probe rotary ultrasonic ripple metal pipe material defectoscope.It adopts contactless connection, i.e. capacitive coupling and water tank axle rotation mode.Because the electric signal between instrument and the probe is a high-frequency signal, as long as therefore certain electric capacity is arranged, just can pass to instrument to the signal that receives on the probe fully, the semaphore loss is very little, and promptly electrical noise is little, and water tank axle rotation does not simultaneously have the spray ripple, noiseless, so just can improve the signal to noise ratio (S/N ratio) of flaw detection greatly, guarantee the sensitivity of flaw detection, prevent to report by mistake or fail to report.And owing to be contactless connection, probe rotational speed height can reach 2000-3000 rev/min, and detection speed is significantly improved.
For achieving the above object, the utility model is taked following design proposal:
A kind of capacitance probe rotary ultrasonic wave inspection machine that is used for the metal pipe material Non-Destructive Testing, a frame is arranged, motor is housed in frame, support is housed on frame, the circumference that support is provided with water tank axle water tank axle is provided with the probe holder of visiting vertical probe holder of hindering and visiting horizontal wound, be provided with probe on probe holder, it is characterized in that: the water tank axle is provided with at least two manifold type capacitors.
Described manifold type capacitor is to be made of ring and capacitor outer shroud in the capacitor, and the interior ring of this capacitor is fixed on the water tank axle, and ring is fixed on the support in the outer shroud correspondence of this capacitor.
End at the water tank axle is provided with water-throwing disk.
This defectoscope is equipped with two or more circular capacitors, the interior ring of capacitor and water tank axle are fitted together rotation simultaneously, ring insulate with other parts of water tank axle in being somebody's turn to do simultaneously, the lead-in wire of ultrasonic probe is connected on the interior ring of capacitor, and each probe links to each other with the interior ring of a capacitor.The outer shroud of capacitor be fixed on the support and with other SI semi-insulations of equipment, be wired on the UT (Ultrasonic Testing) instrument.During flaw detection, the signal that the signal of instrument emission and probe receive all passes through capacitor noncontact coupling and transmits.
The utility model has the advantages that: adopt contactless connection, i.e. capacitive coupling and water tank axle rotation mode.Because the electric signal between instrument and the probe is a high-frequency signal, as long as therefore certain electric capacity is arranged, just can pass to instrument to the signal that receives on the probe fully, the semaphore loss is very little, electrical noise is little, and water tank axle rotation does not simultaneously have the spray ripple, so just can improve the signal to noise ratio (S/N ratio) of flaw detection greatly, guarantee the sensitivity of flaw detection, prevent to report by mistake or fail to report.And owing to be contactless connection, probe rotational speed height can reach 2000-3000 rev/min, and detection speed is improved greatly.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Embodiment
Referring to shown in Figure 1: a kind of capacitance probe rotary ultrasonic wave inspection machine that is used for the metal pipe material Non-Destructive Testing, a frame 12 is arranged, motor 14 is housed in frame, support 11 is housed on frame, the circumference that support is provided with water tank axle 1 water tank axle is provided with the probe holder 10 of visiting the vertical probe holder of hindering 2 and visiting horizontal wound, be provided with probe 3 on probe holder 2, it is characterized in that: water tank axle 1 is provided with at least two manifold type capacitors.
Described manifold type capacitor is to be made of ring 5 and capacitor outer shroud 4 in the capacitor, and the interior ring 5 of this capacitor is fixed on the water tank axle 1, and the outer shroud 4 corresponding interior rings of this capacitor are fixed on the support 11.
Be provided with water-throwing disk 6 in the end of water tank axle 1.
The utlity model has following primary structure:
The water tank axle 1 of a high speed rotating is arranged in the centre of flaw detection support 11, a plurality of probe holders are housed on its outer wall, comprise and visit the vertical probe holder 2,10 of hindering and visiting horizontal wound, probe holder 2,10 is along with water tank axle 1 rotates together.Ultrasonic probe 3 is housed on the probe holder 2, and probe 3 can be around the center rotation of probe holder, so that adjust the incident angle of probe; The turnover position water of probe on probe holder is apart from also adjusting, so that adapt to the tubing of different bores.
Inlet and outlet system also is housed on support 11, and when guaranteeing 1 rotation of water tank axle, its inside is full of water all the time, to satisfy the requirement of UT (Ultrasonic Testing).
This defectoscope is equipped with two or more circular capacitors, the interior ring 5 of capacitor and water tank axle 1 are fitted together rotation simultaneously, ring 5 insulate with other parts of water tank axle 1 in being somebody's turn to do simultaneously, the lead-in wire of ultrasonic probe is connected on the interior ring 5 of capacitor, and each probe links to each other with the interior ring 5 of a capacitor.The outer shroud 4 of capacitor be fixed on the support 11 and with other SI semi-insulations of equipment, be wired on the UT (Ultrasonic Testing) instrument.During flaw detection, the signal that the signal of instrument emission and probe receive is all by the capacitor-coupled transmission.
Capacitor adopts contactless water-throwing disk 6 to add the labyrinth sealing waterproof construction, can prevent that the water that overflows in the water tank axle 1 from draining on the capacitor, prevents between the capacitor inner and outer rings other partial short circuits of inner and outer rings and equipment.Mix outer cover, frame 12, motor 14 for above-mentioned defectoscope, driving pulley and belt 13, electric control system, the upper and lower material of supporting more suitable tubing mechanism, straight line are carried, centering pilot mechanism, just can form a tube ndt line.
Fig. 1 is a design example of the present utility model.Wherein 1 is the water tank axle, the 2nd, visit vertical probe holder of hindering, and the 3rd, probe, the 4th, the outer shroud of capacitor, the 5th, the interior ring of capacitor, the 6th, the water-throwing disk on the water tank axle, the 7th, by the orienting sleeve of inserting tube material, the 8th, leak the pipe adapter of water outlet, the 9th, to the pipe adapter of water tank axle water-filling, the 10th, the probe holder of the horizontal wound of spy, the 11st, support, the 12nd, frame, the 13rd, vee belt, the 14th, motor.The outer cover of defectoscope and electric control system end are in the drawings.
According to such scheme, done the test battery device.Two probes wherein have been installed, but inserting tube footpath 10-30mm, water tank axle rotating speed 2500rpm, the flaw detection linear velocity reaches 30 meters/minute, the flaw detection signal to noise ratio (S/N ratio) reaches more than the 8db, and can detect a flaw is of a size of dark 0.05mm people's industrial injury, has reached the flaw detection requirement of China GBT5777-1996 standard and U.S. ASTM standard.
Claims (3)
1, a kind of capacitance probe rotary ultrasonic wave inspection machine that is used for the metal pipe material Non-Destructive Testing, a frame (12) is arranged, motor (14) is housed in frame, support (11) is housed on frame, the circumference that support is provided with water tank axle (1) water tank axle is provided with the probe holder (10) of visiting vertical probe holder (2) of hindering and visiting horizontal wound, be provided with probe (3) on probe holder (2), it is characterized in that: water tank axle (1) is provided with at least two manifold type capacitors.
2, capacitance probe rotary ultrasonic wave inspection machine according to claim 1, it is characterized in that: described manifold type capacitor is to be made of ring (5) and capacitor outer shroud (4) in the capacitor, the interior ring (5) of this capacitor is fixed on the water tank axle (1), and ring was fixed on the support (11) in the outer shroud of this capacitor (4) was corresponding.
3, capacitance probe rotary ultrasonic wave inspection machine according to claim 1 is characterized in that: be provided with water-throwing disk (6) in the end of water tank axle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02282247 CN2574053Y (en) | 2002-10-16 | 2002-10-16 | Capacitance probe rotary ultrasonic flow detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02282247 CN2574053Y (en) | 2002-10-16 | 2002-10-16 | Capacitance probe rotary ultrasonic flow detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2574053Y true CN2574053Y (en) | 2003-09-17 |
Family
ID=33744371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02282247 Expired - Lifetime CN2574053Y (en) | 2002-10-16 | 2002-10-16 | Capacitance probe rotary ultrasonic flow detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2574053Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288682A (en) * | 2011-05-12 | 2011-12-21 | 斯肯威（上海）工业检测科技有限公司 | Device for eliminating motor electromagnetic interference influence of ultrasonic detection robot |
| CN103063741A (en) * | 2012-12-28 | 2013-04-24 | 瓦房店轴承集团有限责任公司 | Ultrasonic flaw detector for bearing outer rings |
| CN103399088A (en) * | 2013-07-26 | 2013-11-20 | 北京波易达成像技术有限公司 | Rotary type multi-channel ultrasonic transmitting and receiving device and method |
-
2002
- 2002-10-16 CN CN 02282247 patent/CN2574053Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288682A (en) * | 2011-05-12 | 2011-12-21 | 斯肯威（上海）工业检测科技有限公司 | Device for eliminating motor electromagnetic interference influence of ultrasonic detection robot |
| CN103063741A (en) * | 2012-12-28 | 2013-04-24 | 瓦房店轴承集团有限责任公司 | Ultrasonic flaw detector for bearing outer rings |
| CN103063741B (en) * | 2012-12-28 | 2015-05-27 | 瓦房店轴承集团有限责任公司 | Ultrasonic flaw detector for bearing outer rings |
| CN103399088A (en) * | 2013-07-26 | 2013-11-20 | 北京波易达成像技术有限公司 | Rotary type multi-channel ultrasonic transmitting and receiving device and method |
| CN103399088B (en) * | 2013-07-26 | 2015-09-30 | 北京波易达成像技术有限公司 | A kind of rotary type multichannel ultrasound wave sending and receiving apparatus and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121016 Granted publication date: 20030917 |