CN102478141A - Magnetism positioning device for interior detection of heat exchange tube - Google Patents
Magnetism positioning device for interior detection of heat exchange tube Download PDFInfo
- Publication number
- CN102478141A CN102478141A CN2010105580202A CN201010558020A CN102478141A CN 102478141 A CN102478141 A CN 102478141A CN 2010105580202 A CN2010105580202 A CN 2010105580202A CN 201010558020 A CN201010558020 A CN 201010558020A CN 102478141 A CN102478141 A CN 102478141A
- Authority
- CN
- China
- Prior art keywords
- centering
- positioning device
- unit
- wheel
- base plate
- 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.)
- Granted
Links
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
A magnetism positioning device for the interior detection of a heat exchange tube belongs to a nondestructive testing device and is matched with an internal detecting system for use so as to solve the problems of centering and defect positioning of a sensor in the interior detection process. The magnetism positioning device comprises a supporting unit, a centering unit, a coding and positioning unit and an adsorption unit. A baseplate is used as a supporting center, a central hole is arranged in the middle of the baseplate, and handrails are arranged at the two sides of the baseplate; the centering unit is formed by a supporting frame and a centering wheel which are connected through a supporting shaft; the coding and positioning unit comprises a pin shaft penetrated with a torsional spring, a supporting seat and a coder; and a magnet box and a permanent magnet of the adsorption unit are fixed on the baseplate. The magnetism positioning device has simple and flexible structure and can be used for positioning and centering of the sensor when the interior of the heat exchange tube is detected.
Description
Technical field
The invention belongs to pipe detection device, detect the magnetic positioning device in particularly a kind of heat exchanging tube.
Background technique
The situation of heat exchanging tube is directly connected to long-term, the safety and the steady production of heat transmission equipment, examined environmental limit, and detection can only be taked the mode that detects internally in the exchange heat pipe.At present detection mode mainly contains methods such as leakage field, ultrasonic, eddy current in the exchange heat pipe.When above-mentioned detecting method is implemented, detecting sensor in be to need the key issue that solves with defect location.The centering performance of sensor is good, can reduce vibrations, reduces the testing signal background noise, prevents omission.The defective that the while sensor goes out needs accurately location, so that later maintenance.Existing solution mainly is to utilize electronic pushing away to pull out device, and this method can realize the automatic location and the centering of sensor through machinery and circuit control, but exists equipment volume huge, and centering is complicated, and cost has limited application at the scene than problems such as height.
Summary of the invention
Technical problem to be solved by this invention is: provide and detect the magnetic positioning device in a kind of heat exchanging tube.Solve sensor in detecting in the heat exchanging tube in the problem of defect location, simple in structure, convenient and reliable.
Technological scheme of the present invention is:
Detect the magnetic positioning device in a kind of heat exchanging tube; It is characterized in that: on the base plate that aluminium is processed center hole is arranged, a side of plate upper surface has bearing, connects encoder by the bearing pin axle on the bearing; The torsion spring that connects between encoder and the bearing is being arranged on the bearing pin; The encoder upper axis connects code wheel, and the opposite side of plate upper surface has supporting frame, and the supporting frame upper end connects the centering wheel through the back shaft axle; The central lines of center hole on the vertical tangent line of centering wheel and the base plate; The axis parallel of the code wheel axle center of centering wheel and centering wheel has a circle Baltimore groove on the centering wheel surface, outer border, on two relative both sides of base plate lower surface first magnetic box, second magnetic box are arranged respectively respectively; In first magnetic box and second magnetic box permanent magnet is arranged.
Handrail is respectively arranged on the both sides of plate upper surface.
Effect of the present invention is:
Detect the magnetic positioning device in the heat exchanging tube, that this device has is simple in structure, the surplus of floating is big, the motion flexible characteristic, can be applicable to the interior detection of heat exchanging tube.Separated sensor in detecting in the heat exchanging tube of determining in the problem of defect location, simple in structure, convenient and reliable.
Description of drawings
Fig. 1 is the sectional view that detects the plan view of magnetic positioning device in the heat exchanging tube
Fig. 2 is the plan view that detects the magnetic positioning device in the heat exchanging tube
Fig. 3 is the worm's eye view that detects the magnetic positioning device in the heat exchanging tube
Embodiment
Detect in a kind of heat exchanging tube and use the magnetic positioning device, form by support unit, centering unit, coding location unit and absorbing unit.Described support unit comprises the handrail of base plate and both sides, and handrail is connected with base plate through nut, and there is through hole at the base plate center; Described centering unit comprises supporting frame, back shaft and centering wheel, and is connected with base plate through screw, on the centering wheel Baltimore groove is arranged; Described coding location unit comprises bearing and encoder, is installed on the encoder base through the back shaft that torsion spring is housed, and the encoder base through screws is fixed on the base plate; Described absorbing unit comprises magnetic box and permanent magnet, and permanent magnet is encased by magnetic box, through screw on base plate.
Like Fig. 1,2, shown in 3, support unit is formed by connecting on the base plate that has center hole 1 and first handrail 19 and second handrail 22; First, second handrail end has screw thread, is connected with elastic washer 13 through nut 12 with base plate.Base plate 1 uses aluminium, alleviates the quality of support unit, avoids being adsorbed the unit magnetization simultaneously.
Centering unit 21 is made up of supporting frame 9, the centering wheel 7 that has a groove, and centering is taken turns 7 and is installed on the supporting frame 9 through back shaft 8; On the base plate 1 tapped hole is arranged, supporting frame 9 is fixed on the base plate 1 through bolt 10 and plain washer 11, this moment centering wheel 7 tangent line with base plate 1 on the central lines of center hole, the centering of realization sensor.
Coding location unit 21 is formed by connecting encoder 5, the bearing 2 that is threaded the hole, torsion spring 3, bearing pin 4; Encoder 5 is fixed on the center hole of bearing 2 through torsion spring 3 and bearing pin 4; Bearing 2 is installed on the base plate 1 through screw 17, elastic washer 18.During installation, the parallel axes of the axis of the code wheel 6 of encoder 5 and centering wheel 7, the moment of torsion of torsion spring 3 guarantees that then code wheel 6 compresses centering wheel 7, and two-wheeled rotates simultaneously during use, and encoder 5 is confirmed the location of sensor.
Absorbing unit comprises first absorbing unit and second absorbing unit, and each is made up of magnet 14, first magnetic box 23, second magnetic box 24; Magnet 14 is encased by first, second magnetic box of rolled stainless steel, and the base plate 1 that is fixed through screw 15 and elastic washer 16 below.
Embodiment
The present invention in use, at first absorbing unit is adsorbed on whole device on the end of heat exchanging tube, the central axis centering of its bottom center hole axis and heat exchanging tube to be detected, this moment centering wheel Baltimore groove tangent line promptly with heat exchanging tube center line centering.When through push rod pulling sensor, the code wheel that drives the coding location unit rotates, and space acquisition signals such as detection trigger system are realized the space orientation of defective.
Claims (2)
1. detect the magnetic positioning device in a heat exchanging tube; It is characterized in that: the base plate that aluminium is processed has center hole on (1), and a side of plate upper surface has bearing (2), on the bearing by bearing pin (4) axle connection encoder (5); The torsion spring (3) that connects between encoder and the bearing is being arranged on the bearing pin (4); The encoder upper axis connects code wheel (6), and the opposite side of plate upper surface has supporting frame (9), and the supporting frame upper end connects centering wheel (7) through back shaft (8) axle; The central lines of center hole on the vertical tangent line of centering wheel and the base plate; The axis parallel of the code wheel axle center of centering wheel (7) and centering wheel has a circle trapezoidal groove on the centering wheel surface, outer border, first magnetic box (23), second magnetic box (24) are respectively arranged respectively on two relative both sides of base plate lower surface; In first magnetic box and second magnetic box permanent magnet is arranged.
2. detect the magnetic positioning device in the heat exchanging tube according to claim 1, it is characterized in that: handrail (19,22) is respectively arranged on the both sides of plate upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010558020 CN102478141B (en) | 2010-11-24 | 2010-11-24 | Magnetism positioning device for interior detection of heat exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010558020 CN102478141B (en) | 2010-11-24 | 2010-11-24 | Magnetism positioning device for interior detection of heat exchange tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102478141A true CN102478141A (en) | 2012-05-30 |
| CN102478141B CN102478141B (en) | 2013-11-06 |
Family
ID=46090868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010558020 Active CN102478141B (en) | 2010-11-24 | 2010-11-24 | Magnetism positioning device for interior detection of heat exchange tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102478141B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580785A (en) * | 2017-09-29 | 2019-04-05 | 上海金艺检测技术有限公司 | Scanning tooling and method for turbine blade root defect |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06193780A (en) * | 1992-12-25 | 1994-07-15 | Hitachi Plant Eng & Constr Co Ltd | Automatic bevel adjusting device for piping |
| CN1137825A (en) * | 1993-12-15 | 1996-12-11 | 国际壳牌研究有限公司 | Device for carrying equipment through conduit and method for use of device |
| CN1290585A (en) * | 1999-08-11 | 2001-04-11 | 三菱重工业株式会社 | Joint clamp, joint device and joint method |
| CN201107300Y (en) * | 2007-11-28 | 2008-08-27 | 山东省特种设备检验研究院 | Diffracted wave time difference method ultrasound detection sweeping check support |
| WO2010072324A1 (en) * | 2008-12-23 | 2010-07-01 | Rosen Swiss Ag | Security device and system for monitoring pipes |
-
2010
- 2010-11-24 CN CN 201010558020 patent/CN102478141B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06193780A (en) * | 1992-12-25 | 1994-07-15 | Hitachi Plant Eng & Constr Co Ltd | Automatic bevel adjusting device for piping |
| CN1137825A (en) * | 1993-12-15 | 1996-12-11 | 国际壳牌研究有限公司 | Device for carrying equipment through conduit and method for use of device |
| CN1290585A (en) * | 1999-08-11 | 2001-04-11 | 三菱重工业株式会社 | Joint clamp, joint device and joint method |
| CN201107300Y (en) * | 2007-11-28 | 2008-08-27 | 山东省特种设备检验研究院 | Diffracted wave time difference method ultrasound detection sweeping check support |
| WO2010072324A1 (en) * | 2008-12-23 | 2010-07-01 | Rosen Swiss Ag | Security device and system for monitoring pipes |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580785A (en) * | 2017-09-29 | 2019-04-05 | 上海金艺检测技术有限公司 | Scanning tooling and method for turbine blade root defect |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102478141B (en) | 2013-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208188051U (en) | A kind of fixed bracket of rail status monitoring sensor | |
| CN104330049A (en) | Portable locomotive vehicle wheel pair surface wearing automatic detection device and detection method | |
| CN103091024A (en) | Push-pull force testing device of actuator | |
| CN108333254B (en) | Ultrasonic probe system for detecting delamination defect of double-metal seamless composite steel pipe bonding layer | |
| CN102478141B (en) | Magnetism positioning device for interior detection of heat exchange tube | |
| CN108037186A (en) | The passive rail failure detector of magnetostrictive thin film formula | |
| CN101813668B (en) | Wheel axle end surface flaw detection device and method | |
| CN203337609U (en) | Adjustable array magnetizing device used for pipeline guide wave detection | |
| CN210689910U (en) | Liquid pressure sensor convenient to installation | |
| CN201561978U (en) | Multipurpose fixing and connecting device for vibration acceleration sensor | |
| CN206544002U (en) | Pump shaft centering adjusts servicing unit | |
| CN114777697A (en) | Wall thickness detection device based on nodular cast iron pipe | |
| CN202083441U (en) | Magnetic liquid level sensor | |
| CN108120607A (en) | Automotive window motor dynamics power testboard | |
| CN210572126U (en) | Electromagnetic super surface acoustic wave probe device for flaw detection of train wheels | |
| CN106809623B (en) | Floating coil of strip dolly shift position detection device | |
| CN209295910U (en) | A kind of leaf spring linear dimensions measuring device | |
| CN202599398U (en) | Manual roundness measuring instrument capable of carrying out multipoint detection on sensor | |
| CN102175760B (en) | Metal magnetic memory signal acquisition device for R-angle position of waste crankshaft before remanufacturing | |
| CN201662558U (en) | Flaw detection device at end surface of wheel axle | |
| CN102192807B (en) | Three-dimensional magnetic measurement fixture | |
| CN202485837U (en) | Electromagnetic valve attraction detection device | |
| CN220524942U (en) | Reservoir dam deformation monitoring device | |
| CN201497629U (en) | Low bearing truckle rotation steering performance testing machine | |
| CN203037395U (en) | Actuating mechanism push-pull force testing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |