CN104437211B - Magnetic suspension mixing and stirring device for online magnetic powder inspection of wheels - Google Patents
Magnetic suspension mixing and stirring device for online magnetic powder inspection of wheels Download PDFInfo
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- CN104437211B CN104437211B CN201410744524.1A CN201410744524A CN104437211B CN 104437211 B CN104437211 B CN 104437211B CN 201410744524 A CN201410744524 A CN 201410744524A CN 104437211 B CN104437211 B CN 104437211B
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- endless tube
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Abstract
The invention discloses a magnetic suspension mixing and stirring device for online magnetic powder inspection of wheels and belongs to accessories of magnetic particle flaw detectors. According to the device, a pumping hole, a return hole and an overflow hole are formed in a stirring barrel; a baffle plate with a baffle hole is annularly arranged inside the barrel wall; the barrel wall and the baffle plate form a baffle cavity; the return hole in the barrel wall is connected with the baffle cavity in a communicated mode; a one-way quantitative hydraulic pump of a liquid flow stirring mechanism is respectively connected with the pumping hole, the return hole and the overflow hole in the stirring barrel and a spraying mechanism by virtue of a valve and a pipeline in a communicated mode; a gas inlet pipe of a gas stirring mechanism stretches into the bottom by virtue of a central axis of the stirring barrel and is connected with a ring pipe; and the ring pipe with a gas outlet hole is fixedly arranged on the inner side of the bottom of the stirring barrel. The magnetic suspension mixing and stirring device disclosed by the invention has the advantages that a liquid return mechanism and a pneumatic stirring mechanism are combined, the magnetic suspension forms splash liquid flow by virtue of the baffle hole in the baffle plate, and the turbulent extent of the magnetic suspension is improved; and moreover, the ring pipe of the pneumatic stirring mechanism forms ascending airflow at the bottom of the stirring barrel, autoprecipitation of the magnetic powder is offset, the amount of the magnetic powder is reduced, and the accuracy of the detection result is high.
Description
Technical field
The invention belongs to the adnexa of magnaflux, particularly relate to a kind of wheel online magnaflux magnetic flaw detection ink
Agitating device.
Background technology
After train wheel polish, needs detect line and is carried out magnetic particle testing by magnaflux.Magnetic powder
After defectoscope utilizes magnetization, ferrimagnet deforms at the fault location magnetic line of force of surface or near surface, effusion
Wheel surface forms detectable stray field, and stray field attracts magnetic powder, thus in fault location magnetism powder accumulation, shape
Become magnetic trace, under suitable illumination condition, show position and the shape of defect.For ensureing detection sensitivity
And detection efficiency, magnaflux uses fluorescent magnetic suspension to detect with continuity method, the precipitation of magnetic flaw detection ink
Concentration is to ensure a key index of detection sensitivity, and too high concentration causes contrast too high, impact detection
Observing, too low concentration causes the drastically decline of sensitivity, and tiny defect is difficult to find, therefore magnetic powder is visited
Hinder machine before use, need in advance magnetic flaw detection ink to be stirred at least 20 minutes, it is ensured that the uniformity of Particle content.
At present, the magnetcisuspension of magnaflux is stirred by flow agitating apparatus or mechanical stirring device.
Magnetic flaw detection ink flow agitating apparatus is made up of agitator, hydraulic pump, pipeline, and hydraulic pump is fixed on agitator
On, agitator bottom side sets takes out material hole, and middle part sets return port, and pipeline connects to be taken out material hole, hydraulic pump and returns
Discharge orifice.After there is problems of hydraulic pump extraction magnetic flaw detection ink, magnetic flaw detection ink directly flows back to staving through backflow, makes
Forming local stirring in becoming staving and even there is stirring blind area, magnetic flaw detection ink stirring is uneven, magnetic powder settling velocity
Too fast, cause magnetic flaw detection ink precipitating concentration such as 0.3ml/100ml when succeeding calibration to drop to after running 30 minutes
0.1ml/100ml is interval, and substantial amounts of magnetic powder is deposited to bottom agitator to use, has a strong impact on on-line checking
Sensitivity；For ensureing the sensitivity of detection, need to add a large amount of magnetic powder, cause magnetic powder waste serious, produce
Cost increases.
Magnetic flaw detection ink mechanical stirring device is made up of agitator, shaft, motor and speed reducer, and motor connection subtracts
Speed machine, the output shaft of reductor connect shaft formation and are integrally placed at above agitator, and shaft stretches into stirring
In bucket.There is problems of making tangential circular motion owing to shaft rotarily drives fluid, form eddy current, make
Becoming turbulent extent the highest, magnetic flaw detection ink stirring is uneven；Due to the effect of centrifugal force, cause magnetic powder and fluorescence dye
Material separates, and affects the quality of magnetic powder, and then affects testing result.
Summary of the invention
In order to overcome the defect of prior art, it is an object of the invention to provide a kind of online magnetic powder inspection of wheel
Use magnetic flaw detection ink mixed stirring device, change fluid and flow to, reduce centrifugal force, it is to avoid the precipitation that magnetic powder is too much,
Reduce magnetic powder consumption, be dispersed in dispersant with making dispersed-powder, reduce production cost, ensure testing result.
Wheel online magnetic powder inspection magnetic flaw detection ink mixed stirring device, is characterized in that this device is by agitator, liquid
Stream rabbling mechanism and gas rabbling mechanism connect and compose, and described agitator is provided with takes out material hole, return port, overflow
Hole, bucket wall internal ring sets the deflection plate in band baffling hole, and bucket wall forms baffling chamber, the backflow on bucket wall with deflection plate
Hole connects with baffling chamber and communicates；The unidirectional quantitative hydraulic pump of liquid stream rabbling mechanism is respectively through valve, pipeline and stirring
Bucket take out material hole, return port, spout hole and spraying mechanism connect and communicate；The gas being made up of air inlet pipe and endless tube
Body rabbling mechanism is located in agitator, and air inlet pipe is stretched into bottom by agitator central axis and is connected with endless tube, band
The endless tube of venthole is fixed on agitator bottom inside.
The present invention improves further, and described liquid stream rabbling mechanism is by unidirectional quantitative hydraulic pump, two-position three-way electromagnetic
Reversal valve, the first flow speed control valve, the second flow speed control valve and pipeline connect and compose, and unidirectional quantitative hydraulic pump is fixed on and stirs
Mix outside bucket and by drain pipe with take out material hole and connect and communicate, unidirectional quantitative hydraulic pump export mixes two bye-pass,
First pipeline is connected and composed by the first flow speed control valve and two position, three-way electromagnetic change valve, two position, three-way electromagnetic change valve
On set discharging port A and discharging opening B, discharging port A for cleaning the waste liquid outlet of agitating device, discharging opening B
It is connected with spraying mechanism；Second pipeline is connected and composed by the second flow speed control valve and return duct, return duct and agitator
On return port be connected, magnetic flaw detection ink through liquid stream rabbling mechanism act on agitator in stir up and down, eliminate
Liquid stream short circuit phenomenon, improves the turbulent extent of magnetic flaw detection ink.
The present invention improves further, described Gas Stirring mechanism by air inlet pipe, the first endless tube, the second endless tube,
3rd endless tube, connecting tube connect and compose, and the diameter of the 3rd endless tube adapts with the internal diameter of agitator, the first ring
Pipe, the second endless tube, the 3rd endless tube concentric uniform distribution and be welded on agitator bottom inside, air inlet pipe and the
One endless tube connects, and the second endless tube is connected with the first endless tube, the 3rd endless tube respectively by connecting tube；First endless tube,
It is all provided with venthole vertically upward on second endless tube, the 3rd endless tube, its quantity at least 8,12,16 respectively,
Endless tube forms ascending air bottom agitator, offsets the autoprecipitation of magnetic powder.
The present invention improves further, and described deflection plate is made up of transverse slat and riser, riser cylindrically, external diameter
Less than the internal diameter 5-8mm of agitator, riser middle and lower part is radially all provided with three circle baffling holes, and often circle baffling hole is at least
Be four, the central axis in baffling hole obliquely and horizontal by 30 ° of angles, magnetic flaw detection ink jet velocity is fast,
Stroke is long, strengthens magnetic flaw detection ink and stirs up and down；Transverse slat is circular, and outer rim is closely welded with agitator wall, interior
Edge closely welds with riser so that deflection plate forms an airtight chamber with bucket wall.
The present invention improves further, and described unidirectional quantitative hydraulic delivery side of pump sets and is made up of overflow valve and overflow pipe
Backflow branch road, overflow pipe connects with spout hole and communicates, and stablizes the outlet pressure of unidirectional quantitative hydraulic pump, protect
Card liquid backflow mechanism safe operation.
The present invention improves further, and described first endless tube, the second endless tube, the internal diameter of the 3rd endless tube are 14mm,
External diameter is 16mm.
The present invention improves further, a diameter of 4mm of described venthole.
The present invention improves further, a diameter of 4mm in described baffling hole.
During use, in agitator, add magnetic powder and dispersant, the second flow speed control valve is tuned up, makes magnetic flaw detection ink fast
Speed reaches uniform, saves mixing time；After spray system works, open source of the gas, Gas Stirring mechanism work
Make, suitably regulate the second flow speed control valve according to the concentration of magnetic flaw detection ink, be distributed in dispersant with making dispersed-powder；
According to the size of workpiece to be detected, suitably regulation the first flow speed control valve, makes spraying effect reach optimal.
Compared with prior art, advantage is novel, and structure letter is gathered, rationally；This device uses liquid to return
Stream mechanism combines with Gas Stirring mechanism, and magnetic flaw detection ink baffling hole on deflection plate forms splash liquid stream,
Change fluid to flow to, stir up and down in agitator, eliminate liquid stream short circuit phenomenon, improve the turbulent flow of magnetic flaw detection ink
Degree, reduces centrifugal force；The endless tube of Gas Stirring mechanism forms ascending air bottom agitator, offsets magnetic
The autoprecipitation of powder, magnetic powder consumption reduces, is dispersed in dispersant dispersed-powder, and production cost reduces, inspection
The accuracy surveying result is high.
Accompanying drawing explanation
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of wheel online magnetic powder inspection magnetic flaw detection ink mixed stirring device；
Fig. 2 is that Fig. 1 is along line A-A sectional view；
Fig. 3 is the I portion enlarged drawing of Fig. 2；
Fig. 4 is that Fig. 3 is along line B-B sectional view；
Fig. 5 is the II portion enlarged drawing of Fig. 2；
Fig. 6 is that Fig. 5 is along line C-C sectional view.
In figure: 1-agitator, 101-deflection plate, 102-baffling chamber, 103-return port, 104-take out material hole, 105-
Baffling hole, 106-spout hole, 2-liquid backflow mechanism, 201-two position, three-way electromagnetic change valve, 202-first adjust
Speed valve, 203-the second flow speed control valve, the unidirectional quantitative hydraulic pump of 204-, 205-drain pipe, 206-return duct, 207-
Overflow valve, 208-overflow pipe, 3-Gas Stirring mechanism, 301-air inlet pipe, 302-the first endless tube, 303-second
Endless tube, 304-the 3rd endless tube, 305-connecting tube, 306-venthole, 4-spraying mechanism.
Detailed description of the invention
Below in conjunction with embodiment, present invention row further is described in detail.
By Fig. 1 to 6 it can be seen that wheel online magnetic powder inspection magnetic flaw detection ink mixed stirring device, this device
Being connected and composed by agitator 1, liquid stream rabbling mechanism 2 and gas rabbling mechanism 3, described agitator is provided with takes out material
Hole 104, return port 103, spout hole 106, bucket wall internal ring sets the deflection plate 101 in band baffling hole 105, bucket
Wall forms baffling chamber 102 with deflection plate, and the return port on bucket wall connects with baffling chamber and communicates；Liquid stream rabbling mechanism
Unidirectional quantitative hydraulic pump 204 respectively through valve, pipeline and agitator take out material hole, return port, spout hole and
Spraying mechanism 4 connects and communicates；By air inlet pipe 301 and endless tube (302；303；304) Gas Stirring constituted
Mechanism is located in agitator, and air inlet pipe is stretched into bottom by agitator central axis and is connected with endless tube, band venthole
The endless tube of 306 is fixed on agitator bottom inside.
By Fig. 1 it can also be seen that described liquid stream rabbling mechanism 2 is by unidirectional quantitative hydraulic pump 204, two-position three way
Solenoid directional control valve the 201, first flow speed control valve the 202, second flow speed control valve 203 and pipeline connect and compose, unidirectional quantitatively
Hydraulic pump be fixed on outside agitator and by drain pipe 205 with take out material hole 104 and connect and communicate, unidirectional quantitative liquid
Press pump export mixes two bye-pass, the first pipeline is connected structure by the first flow speed control valve and two position, three-way electromagnetic change valve
Becoming, two position, three-way electromagnetic change valve sets discharging port A and discharging opening B, discharging port A is used for cleaning stirring dress
The waste liquid outlet put, discharging opening B is connected with spraying mechanism 4；Second pipeline is by the second flow speed control valve and return duct
206 connect and compose, and return duct is connected with the return port 103 on agitator 1, and magnetic flaw detection ink is through liquid stream blender
Structure act on agitator in stir up and down, eliminate liquid stream short circuit phenomenon, improve magnetic flaw detection ink turbulent extent.
By Fig. 1,2 it can also be seen that described Gas Stirring mechanism 3 by air inlet pipe the 301, first endless tube 302,
Second endless tube the 303, the 3rd endless tube 304, connecting tube 305 connect and compose, the first endless tube, the second endless tube,
Three endless tubes are copper endless tube, and internal diameter is 14mm, and external diameter is 16mm, the diameter of the 3rd endless tube with stir
The internal diameter mixing bucket 1 adapts, and the first endless tube, the second endless tube, the 3rd endless tube concentric uniform are distributed and are welded on
Agitator bottom inside, air inlet pipe is connected with the first endless tube, the second endless tube by connecting tube respectively with the first endless tube,
3rd endless tube connects；It is all provided with venthole 306 vertically upward on first endless tube, the second endless tube, the 3rd endless tube, goes out
A diameter of 4mm of pore, its quantity at least eight, 12,16 respectively, endless tube is bottom agitator
Form ascending air, offset the autoprecipitation of magnetic powder.
By Fig. 1 to 4 it can also be seen that described deflection plate 101 is made up of transverse slat and riser, riser is cylinder
Shape, external diameter is radially all provided with three circle baffling holes 105 less than the internal diameter 5-8mm of agitator 1, riser middle and lower part,
A diameter of 4mm in baffling hole, often circle baffling hole be at least four, the central axis in baffling hole obliquely and with
Horizontal plane is 30 ° of angles, and magnetic flaw detection ink jet velocity is fast, stroke is long, strengthens magnetic flaw detection ink and stirs up and down；Transverse slat in
Circular, outer rim is closely welded with agitator wall, and inner edge is closely welded with riser so that deflection plate and bucket wall
Form an airtight chamber.
By Fig. 1 it can also be seen that the outlet of described unidirectional quantitative hydraulic pump 204 sets by overflow valve 207 and overflows
The backflow branch road that flow tube 208 is constituted, overflow pipe connects with spout hole 106 and communicates, stablizes unidirectional quantitative hydraulic
Delivery side of pump pressure, it is ensured that liquid backflow mechanism safe operation.
Claims (8)
1. wheel online magnetic powder inspection magnetic flaw detection ink mixed stirring device, it is characterised in that this device is by agitator
(1), liquid stream rabbling mechanism (2) and gas rabbling mechanism (3) connect and compose, described agitator is provided with to be taken out
Material hole (104), return port (103), spout hole (106), bucket wall internal ring sets the folding in band baffling hole (105)
Stream plate (101), bucket wall forms baffling chamber (102) with deflection plate, and the return port on bucket wall connects with baffling chamber
Communicate；The unidirectional quantitative hydraulic pump (204) of liquid stream rabbling mechanism takes out material through valve, pipeline with agitator respectively
Hole, return port, spout hole and spraying mechanism (4) connect and communicate；By air inlet pipe (301) and endless tube (302；
303；304) the Gas Stirring mechanism constituted is located in agitator, and air inlet pipe is stretched into by agitator central axis
Bottom is connected with endless tube, and the endless tube of band venthole (306) is fixed on agitator bottom inside.
Wheel the most according to claim 1 online magnetic powder inspection magnetic flaw detection ink mixed stirring device, it is special
Levy and be that described liquid stream rabbling mechanism (2) is by unidirectional quantitative hydraulic pump (204), two position, three-way electromagnetic change valve
(201), the first flow speed control valve (202), the second flow speed control valve (203) and pipeline connect and compose, unidirectional quantitative liquid
Press pump be fixed on outside agitator and by drain pipe (205) with take out material hole (104) and connect and communicate, unidirectional fixed
Amount hydraulic pump outlet constitutes two bye-passes, and the first pipeline is connected by the first flow speed control valve and two position, three-way electromagnetic change valve
Connecing composition, two position, three-way electromagnetic change valve sets discharging port A and discharging opening B, discharging port A is stirred for cleaning
Mixing the waste liquid outlet of device, discharging opening B is connected with spraying mechanism (4)；Second pipeline by the second flow speed control valve and
Return duct (206) connects and composes, and return duct is connected with the return port (103) on agitator (1).
Wheel the most according to claim 1 online magnetic powder inspection magnetic flaw detection ink mixed stirring device, it is special
Levy be described Gas Stirring mechanism (3) by air inlet pipe (301), the first endless tube (302), the second endless tube (303),
3rd endless tube (304), connecting tube (305) connect and compose, the diameter of the 3rd endless tube and agitator (1)
Internal diameter adapts, and the first endless tube, the second endless tube, the 3rd endless tube concentric uniform are distributed and are welded at the bottom of agitator
Inside portion, air inlet pipe is connected with the first endless tube, the second endless tube by connecting tube respectively with the first endless tube, the 3rd ring
Pipe connects；It is all provided with venthole (306) vertically upward, its number on first endless tube, the second endless tube, the 3rd endless tube
Amount at least eight, 12,16 respectively.
4. fill according to the wheel online magnetic powder inspection magnetic flaw detection ink mix and blend described in claim 1 or 2 or 3
Putting, it is characterised in that described deflection plate (101) is made up of transverse slat and riser, cylindrically, external diameter is little for riser
In the internal diameter 5-8mm of agitator (1), riser middle and lower part is radially all provided with three circle baffling holes (105), often encloses folding
Discharge orifice is at least four, and the central axis in baffling hole is obliquely and horizontal by 30 ° of angles；Transverse slat is annulus
Shape, outer rim closely welds with agitator wall, and inner edge is closely welded with riser so that deflection plate is formed with bucket wall
One airtight chamber.
Wheel the most according to claim 2 online magnetic powder inspection magnetic flaw detection ink mixed stirring device, it is special
Levy and be that the outlet of described unidirectional quantitative hydraulic pump (204) sets by overflow valve (207) and overflow pipe (208)
The backflow branch road constituted, overflow pipe connects with spout hole (106) and communicates.
Wheel the most according to claim 3 online magnetic powder inspection magnetic flaw detection ink mixed stirring device, it is special
Levy and be that described first endless tube (302), the second endless tube (303), the internal diameter of the 3rd endless tube (304) are 14mm,
External diameter is 16mm.
7. according to the online magnetic powder inspection magnetic flaw detection ink mixed stirring device of the wheel described in claim 3 or 6,
It is characterized in that a diameter of 4mm of described venthole (306).
Wheel the most according to claim 4 online magnetic powder inspection magnetic flaw detection ink mixed stirring device, it is special
Levy a diameter of 4mm being described baffling hole (105).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410744524.1A CN104437211B (en) | 2014-12-09 | 2014-12-09 | Magnetic suspension mixing and stirring device for online magnetic powder inspection of wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410744524.1A CN104437211B (en) | 2014-12-09 | 2014-12-09 | Magnetic suspension mixing and stirring device for online magnetic powder inspection of wheels |
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| Publication Number | Publication Date |
|---|---|
| CN104437211A CN104437211A (en) | 2015-03-25 |
| CN104437211B true CN104437211B (en) | 2017-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410744524.1A Active CN104437211B (en) | 2014-12-09 | 2014-12-09 | Magnetic suspension mixing and stirring device for online magnetic powder inspection of wheels |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106237911B (en) * | 2016-07-12 | 2018-08-07 | 宁夏共享集团股份有限公司 | A kind of magnetic flaw detection ink mixing arrangement |
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| DE10163765A1 (en) * | 2001-12-27 | 2003-07-17 | Keser Osman | Device for producing hydrogen-containing gas mixture made from water or aqueous solution comprises reaction vessel, permanent magnets arranged in base of vessel |
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| CN103182268A (en) * | 2013-03-19 | 2013-07-03 | 科创控股集团有限公司 | Solid-liquid mixing tank and using method thereof |
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| CN204485738U (en) * | 2014-12-09 | 2015-07-22 | 马钢(集团)控股有限公司 | Wheel online magnetic powder inspection magnetic flaw detection ink mixed stirring device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH105563A (en) * | 1996-06-25 | 1998-01-13 | Aimetsukusu Kk | Wet fine grain dispersing and crushing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2231574Y (en) * | 1995-03-16 | 1996-07-24 | 中国石化兰州炼油化工总厂 | Stirring mixer for floating solid phase and liquid phase |
| CA2227667A1 (en) * | 1998-01-22 | 1999-07-22 | Waldemar Maciejewski | Agitated slurry pump box for oil sand hydrotransport |
| DE10163765A1 (en) * | 2001-12-27 | 2003-07-17 | Keser Osman | Device for producing hydrogen-containing gas mixture made from water or aqueous solution comprises reaction vessel, permanent magnets arranged in base of vessel |
| CN102961999A (en) * | 2012-12-17 | 2013-03-13 | 陈启松 | Gas stirring apparatus |
| CN203090824U (en) * | 2013-02-16 | 2013-07-31 | 河北省电力公司电力科学研究院 | Manual blowing-type magnetic suspension preparation device |
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| CN104437211A (en) | 2015-03-25 |
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Effective date of registration: 20200624 Address after: No. 700, Yinhuang East Road, Maanshan economic and Technological Development Zone, Yushan District, Ma'anshan City, Anhui Province Patentee after: Baowu group Magang rail transit Material Technology Co., Ltd Address before: 243000 Anhui city of Ma'anshan province Jiuhua Mountain Rain Road No. 8 Co-patentee before: MAANSHAN IRON & STEEL Co.,Ltd. Patentee before: MAGANG (GROUP) HOLDING Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |
Address after: 243000 No. 700, Yinhuang East Road, Ma'anshan economic and Technological Development Zone, Ma'anshan City, Anhui Province Patentee after: Baowu group Magang rail transit Material Technology Co., Ltd Address before: No. 700, Yinhuang East Road, Maanshan economic and Technological Development Zone, Yushan District, Ma'anshan City, Anhui Province Patentee before: Baowu group Magang rail transit Material Technology Co., Ltd |