CN114814679B - Device for detecting magnetism of soft magnetic material in real time under automatic stress application - Google Patents
Device for detecting magnetism of soft magnetic material in real time under automatic stress application Download PDFInfo
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- CN114814679B CN114814679B CN202210507321.5A CN202210507321A CN114814679B CN 114814679 B CN114814679 B CN 114814679B CN 202210507321 A CN202210507321 A CN 202210507321A CN 114814679 B CN114814679 B CN 114814679B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
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Abstract
The invention discloses a real-time detection device for the magnetism of a soft magnetic material under the automatic stress application, which comprises a sample piece to be detected and a magnetism applying part, wherein the magnetism applying part comprises an upper magnetism applying part and a lower magnetism applying part which have the same structure; the two clamping pieces are positioned on two opposite sides of the magnetism applying part and used for clamping the sample piece to be measured, and any one clamping piece is stressed through the stress piece; the driving pieces are arranged on the other two sides of the magnetism applying part and are used for driving the upper magnetism applying piece to lift; the detection piece is arranged on one side, close to the upper magnetic applying piece, of the sample piece to be detected, and the detection piece is in contact with the sample piece to be detected. The invention can overcome the defects of the prior art and provides the automatic applying and real-time measuring device for the stress and the magnetic property of the large-size flaky soft magnetic material, which has the advantages of high precision, small volume, light weight, stable performance and real-time control.
Description
Technical Field
The invention relates to the technical field of magnetic performance and stress measurement, in particular to a real-time detection device for magnetism of a soft magnetic material under automatic stress application.
Background
The sheet soft magnetic material has small eddy current loss, and is widely applied to large-scale electrical equipment and electromagnetic mechanisms, such as motors, generators, transformers and the like. In the practical application process, the magnetic performance of the flaky soft magnetic material, such as magnetic conductivity, a magnetic hysteresis loop, coercive force and other characteristics, can be influenced by stress, and the stress is mostly from shearing force generated by electric cutting, local thrust generated in the coil assembling and winding process of turns and the like. The magnetic performance of the soft magnetic material influences the operation performance and the working efficiency of large-scale electrical equipment, so that the accurate measurement of the magnetic characteristics of the soft magnetic material under the influence of stress is of great importance.
The existing method for detecting the magnetic property of the soft magnetic material comprises an Epstein square ring method, an annular sample method and a single-chip measurement method, and the existing method for measuring the magnetic property under the action of stress comprises the steps of applying stresses in different directions through a cylinder or a motor and simultaneously measuring the magnetic property of the soft magnetic material by utilizing a probe and an H coil combined probe. In the patent (Ding Xiaofeng, xiong Yanwen, xiaowhao, guo Hong. A two-dimensional magnetic property measuring system and measuring method for silicon steel sheet under controllable stress condition, CN104569875 a), the two-dimensional magnetic property of silicon steel sheet is measured under controllable stress. In the patents (Zhang Dianhai, gu Mengfan, anyyan, zhang Yanli. Temperature and stress effect measuring device for vector magnetic properties of electrical steel sheet), magnetic properties of cross-shaped electrical steel sheets are measured under different stresses and temperatures. In the patent (Li Yongjian, zhang Wenting, mo Zhenyu, yu, yang Ming. A three-dimensional magnetic characteristic measuring device suitable for the stress loading of an electric material), a method for measuring the three-dimensional magnetic characteristic of the electric material under the stress action is provided. However, the above patent does not realize automatic control and closed-loop detection of stress, and in addition, does not relate to measurement of magnetic properties of large-size sheet-shaped soft magnetic materials under stress. In conclusion, no relevant report is found at present in the automatic stress and magnetic property applying and real-time measuring device for the large-size sheet-shaped soft magnetic material.
Disclosure of Invention
The invention aims to provide a device for detecting the magnetism of a soft magnetic material under the automatic stress application, which solves the problems in the prior art, can overcome the defects in the prior art and provides an automatic stress application and real-time measurement device for the stress and the magnetism of a large-size sheet soft magnetic material, which has the advantages of high precision, small volume, light weight, stable performance and real-time control.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a real-time detection device for the magnetism of a soft magnetic material under the automatic stress application, which comprises a sample to be detected and a magnetic field detector,
the magnetic applying part comprises an upper magnetic applying part and a lower magnetic applying part which have the same structure, and the sample wafer to be measured is positioned between the upper magnetic applying part and the lower magnetic applying part;
the two clamping pieces are positioned on two opposite sides of the Shi Ci part and used for clamping the sample to be measured, and any clamping piece is stressed through a stress piece;
the driving pieces are arranged on the other two sides of the magnetism applying part and are used for driving the upper magnetism applying piece to lift;
the detection piece is arranged on one side, close to the upper magnetic applying piece, of the sample piece to be detected, and the detection piece is in contact with the sample piece to be detected.
Preferably, on execute magnetism spare and include the unipolar yoke, the winding is equipped with low impedance winding on the unipolar yoke, the low impedance winding with it corresponds the setting to be surveyed the sample piece, the unipolar yoke is fixed through first no magnetism folder, the unipolar yoke pass through the second no magnetism folder with the driving piece transmission is connected.
Preferably, the unipolar yoke includes a plurality of C type electrician's steel sheets, and is a plurality of C type electrician's steel sheet stack forms the unipolar yoke, first magnetism-free holder is provided with two, two first magnetism-free holder sets up respectively on the both sides wall of unipolar yoke, first magnetism-free holder includes the first U type mounting of two relative settings, the unipolar yoke is located two between the first U type mounting, two first U type mounting rigid coupling.
Preferably, the second does not have the magnetism folder setting and is in first does not have magnetism folder and keeps away from one side of being surveyed the sample wafer, the second does not have magnetism folder includes the second U type mounting of two relative settings, unipolar yoke lateral wall rigid coupling has even board, two second U type mounting is right even the board is fixed, second U type mounting inner wall with there is the clearance between the unipolar yoke.
Preferably, the driving piece includes the lifting slip table of two relative settings, lifting slip table expansion end rigid coupling has the driving plate, second U type mounting is kept away from one side rigid coupling of unipolar yoke has the lifting plate, the driving plate is located the lifting plate top, just the driving plate top with lifting plate bottom butt.
Preferably, the holder includes adjustable anchor clamps, it is located to be surveyed the sample piece in the anchor clamps, just it passes through to be surveyed the sample piece anchor clamps are fixed, anchor clamps are kept away from one side rigid coupling of being surveyed the sample piece has the arm of force, the arm of force pass through the stressometer switching pole with the stress piece is connected.
Preferably, the stress part includes the stress real-time detection meter, the real-time detection meter with the stress meter changeover lever is connected, the stress real-time detection meter is right through the stress meter slip table by the application of force of survey sample piece, another anchor clamps are kept away from one side rigid coupling by survey sample piece has no magnetism slip table, no magnetism slip table is used for another anchor clamps are fixed.
Preferably, the detecting piece comprises a positioning substrate arranged on the sample to be detected, the bottom end of the positioning substrate is in contact with the top end of the sample to be detected, the central position of the positioning substrate is detachably connected with a magnetic measuring probe, and the magnetic measuring probe is in contact with the top end of the sample to be detected.
Preferably, the positioning substrate includes two oppositely disposed placing plates, an X-shaped cross plate is fixedly connected between the two placing plates, a through groove is formed in a cross point of the X-shaped cross plate, the magnetic measuring probe is located in the through groove, and the X-shaped cross plate supports the magnetic measuring probe.
Preferably, the magnetism measurement probe top is provided with the apron, can dismantle on the apron and be connected with a plurality of mounts, the mount is located the apron below, and a plurality of the mount cooperation is right magnetism measurement probe fixes, sliding connection has the slip table on the X type cross plate, the slip table is located the mount below, just the slip table is right the mount supports.
The invention discloses the following technical effects:
1. by matching the clamping piece and the stress piece, the automatic stress applying structure and the real-time detection technology are adopted for large-size flaky soft magnetic materials, so that the controllability and the accuracy of stress application are greatly improved, the stress measurement error is reduced, the stress applying energy consumption is reduced, and the size measurement range of the soft magnetic materials is enlarged;
2. through setting up the piece of exerting magnetism, adopt magnetic properties closed-loop control and real-time detection technique, based on stress and magnetic properties integration signal, control output excitation has improved jumbo size slice soft magnetic material magnetic properties measurement accuracy under the stress effect by a wide margin, has reduced magnetic properties measuring error, has improved the interference killing feature to overall structure's volume has further been reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a perspective view of a detection device;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a perspective view of the connection relationship between a non-magnetic sliding table and a fixture;
FIG. 4 is a perspective view of the lower magnetism applying member;
FIG. 5 is a perspective view of the clamp;
FIG. 6 is a perspective view of the connection of the clamp and the magnet applying member;
FIG. 7 is a perspective view of the drive plate;
FIG. 8 is a perspective view of the connection of the positioning substrate and the magnetic measurement probe;
the device comprises a sample piece to be measured, a single-shaft magnetic yoke, a low-impedance winding, a first U-shaped fixing piece, a second U-shaped fixing piece, a 6 connecting plate, a 7 lifting sliding table, a 8 driving plate, a 9 lifting plate, a 10 clamp, an 11 force arm, a 12-stress meter adapter rod, a 13-stress real-time detector, a 14-nonmagnetic sliding table, a 15 positioning base plate, a 16-magnetic measuring probe, a 17 placing plate, an 18-X type cross plate, a 19 cover plate, a 20-nonmagnetic screw, a 21-fixing frame, a 22-sliding table, a 23-nonmagnetic yoke base, a 24-height adjusting waist hole, a 25-sliding groove and a 26-stress meter sliding table.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.
Referring to fig. 1-8, the invention provides a real-time detection device for the magnetism of a soft magnetic material under the automatic stress application, which comprises a sample sheet 1 to be detected and a magnetism applying part, wherein the magnetism applying part comprises an upper magnetism applying part and a lower magnetism applying part which have the same structure, and the sample sheet 1 to be detected is positioned between the upper magnetism applying part and the lower magnetism applying part; the two clamping pieces are positioned on two opposite sides of the magnetism applying part and used for clamping the sample piece 1 to be tested, and any one clamping piece is stressed through the stress piece; the driving pieces are arranged on the other two sides of the magnetism applying part and are used for driving the upper magnetism applying piece to lift; and the detecting piece is arranged on one side of the sample piece 1 to be detected, which is close to the upper magnetic applying piece, and the detecting piece is contacted with the sample piece 1 to be detected.
When the test is carried out, the sample piece 1 to be tested is fixed through the two clamping pieces, and the sample piece 1 to be tested is placed between the upper magnetic applying piece and the lower magnetic applying piece, wherein the upper magnetic applying piece is lifted under the action of the driving piece, so that the upper magnetic applying piece is contacted with the sample piece 1 to be tested, but no additional stress is applied to the surface of the sample piece 1 to be tested. The stress piece is connected to one of the clamping pieces, pushing force or pulling force is applied to the clamping piece through the stress piece, the force application size is measured through the stress piece, and in the process, the detection piece monitors the sample piece 1 to be detected to obtain required data.
In one embodiment of the present invention, a non-magnet yoke base 23 is disposed below the lower magnetism applying member. The lower magnetizing part is supported and fixed by the non-magnet yoke base 23.
Further optimize the scheme, upward exert magnetism piece and include unipolar yoke 2, on unipolar yoke 2 around being equipped with low impedance winding 3, low impedance winding 3 with be surveyed sample piece 1 and correspond the setting, unipolar yoke 2 is fixed through first no magnetism folder, unipolar yoke 2 is connected with the driving piece transmission through the no magnetism folder of second. On apply magnetism spare and the structure of applying magnetism spare down the same, and both set up relatively, on apply magnetism spare and driving piece and be connected, it is connected with no magnet yoke base 23 to apply magnetism spare down, the existence of unipolar yoke 2 and low impedance winding 3 makes the experiment normally go on, the second does not have magnetism folder and bindes fixedly to unipolar yoke 2, and the second does not have magnetism folder fix unipolar yoke 2 on the one hand, on the other hand, the second does not have magnetism folder and is connected with the driving piece, the driving piece goes up and down through driving the second does not have magnetism folder, thereby drive unipolar yoke 2 and go up and down.
In one embodiment of the present invention, the first and second nonmagnetic clips are preferably cast aluminum.
In one embodiment of the present invention, the low impedance winding 3 is formed by winding a plurality of layers of low resistance enameled copper wires, and the layers are wrapped with insulating paper to prevent short circuit of the enameled wires.
Further optimize the scheme, unipolar yoke 2 includes a plurality of C type electrician's steel sheets, and a plurality of C type electrician's steel sheets stack forms unipolar yoke 2, and first no magnetism presss from both sides the piece and is provided with two, and two first no magnetism presss from both sides the piece and sets up respectively on the both sides wall of unipolar yoke 2, and first no magnetism presss from both sides the piece and includes two first U type mounting 4 that set up relatively, and unipolar yoke 2 is located between two first U type mounting 4, 4 rigid couplings of two first U type mountings. A plurality of C type electrical sheet stack together, C type electrical sheet include a plane and two vertical faces perpendicular to the plane, and two first U type mounting 4 are fixed on two vertical faces, through the connection of two first U type mounting 4 to fix a plurality of C type electrical sheet, and low impedance winding 3 is around establishing on the plane.
In one embodiment of the present invention, the two first U-shaped fixing members 4 are fixed by connecting bolts.
In one embodiment of the present invention, the C-type electrical steel sheet preferably has a Contraband type structure.
Further optimize the scheme, the setting of the nonmagnetic folder of second keeps away from the one side of being surveyed sample piece 1 at first nonmagnetic folder, and the nonmagnetic folder of second includes two second U type mountings 5 that set up relatively, and 2 lateral walls rigid couplings of unipolar yoke have even board 6, and two second U type mountings 5 are fixed even board 6, have the clearance between 5 inner walls of second U type mountings and unipolar yoke 2. The single-axis yoke 2 is located between two second U-shaped fixing pieces 5, and the two second U-shaped fixing pieces 5 are fixed through another connecting bolt, so that the single-axis yoke 2 formed by overlapping through the connecting plate 6 is fixed, and the gap exists between the second U-shaped fixing pieces 5 and the single-axis yoke 2 due to the existence of the connecting plate 6, and the gap is used for passing through the low-impedance winding 3.
Further optimize the scheme, the driving piece includes two relative lifting slip tables 7 that set up, and 7 expansion end rigid couplings of lifting slip table have driving plate 8, and one side rigid coupling that unipolar yoke 2 was kept away from to second U type mounting 5 has lifting plate 9, and driving plate 8 is located lifting plate 9 top, and 8 tops of driving plate and 9 bottom butts of lifting plate. Lifting slip table 7 goes up and down, because driving plate 8 and lifting board 9 contact, consequently lifts board 9 and goes up and down under driving plate 8's effect, thereby lifts board 9 and drives second U type mounting and drive unipolar yoke 2 and go up and down.
In one embodiment of the present invention, the lifting slide 7 is preferably, but not limited to, an electrically controlled slide or a pneumatically controlled slide, so that the driving plate 8 can be driven to lift and lower.
In one embodiment of the invention, a first screw hole is formed in the side surface of the transmission plate 8, the first screw hole is convenient for the transmission plate 8 to be connected with the lifting sliding table 7, a second screw hole is formed in the top surface of the transmission plate 8, and the second screw hole is convenient for the transmission plate 8 to be connected with the lifting plate 9.
In one embodiment of the present invention, the second U-shaped fixing member and the lifting plate 9 are preferably integrally formed, which facilitates the production of the two members and improves the connection strength of the two members.
Further optimize the scheme, the holder includes anchor clamps 10 with adjustable, is surveyed sample piece 1 and is located anchor clamps 10, and is surveyed sample piece 1 and pass through anchor clamps 10 fixed, and anchor clamps 10 keep away from one side rigid coupling of being surveyed sample piece 1 has arm of force 11, and arm of force 11 passes through the stressometer changeover lever 12 and is connected with the stress piece. The arm of force 11 is longer to can be so that by the comparatively even distribution of the power of stressometer switching pole 12 transmission on anchor clamps 10, and then comparatively even exert pulling force or thrust to being surveyed specimen 1.
In one embodiment of the present invention, the fixture 10 includes an upper clamping plate and a lower clamping plate, the sample 1 is located between the upper clamping plate and the lower clamping plate, and the upper clamping plate and the lower clamping plate are connected by a fixing bolt. This kind of setting can be comparatively easy to be surveyed sample 1 and change, can be applicable to the surveyed sample 1 of different thickness simultaneously.
Further, the force arm 11 is fixed with the lower splint through a locking bolt. When the sample wafer 1 to be tested needs to be replaced, only the upper clamping plate needs to be detached.
Further optimize the scheme, the stress part includes stress real-time detection meter 13, and the real-time detection meter is connected with stress meter changeover lever 12, and stress real-time detection meter 13 passes through stress meter slip table 26 to the application of force of sample piece 1 under test, and one side that another anchor clamps 10 kept away from sample piece 1 under test is rigid coupling has no magnetism slip table 14, and no magnetism slip table 14 is used for fixing another anchor clamps 10. One of them anchor clamps 10 is connected no magnetism slip table 14, and no magnetism slip table 14 is used for mounting fixture 10, and another anchor clamps pass through stress meter changeover lever 12 and connect stress real-time detection meter 13, and this stress real-time detection meter 13 data derivation to data acquisition device (not shown in the figure), and data acquisition device passes through negative feedback control stress meter slip table 26 and removes based on stress real-time detection meter 13 data simultaneously, realizes the real-time measurement and the accurate closed-loop control of stress.
In one embodiment of the present invention, the nonmagnetic slipway 14 is provided with a height adjusting waist hole. The non-magnetic sliding table 14 is provided with a height adjusting waist hole and is suitable for fixing the tested sample pieces 1 with different thicknesses.
Further, the stress real-time detector 13, the stress meter sliding table 26 and the data acquisition device may be implemented by using the prior art, and the connection relationship and the use mode thereof belong to the prior art and are not described herein in any greater detail.
In one embodiment of the invention, a threaded hole is formed in the stress meter adapter rod 12, and the stress meter adapter rod is connected with the stress real-time detection meter 13 through the threaded hole.
Further optimize the scheme, the probe is including setting up the location base plate 15 on being surveyed the sample wafer 1, and location base plate 15 bottom contacts with 1 top of being surveyed the sample wafer, and location base plate 15 central point puts and can dismantle and be connected with magnetism measurement probe 16, and magnetism measurement probe 16 contacts with 1 top of being surveyed the sample wafer. Through setting up location base plate 15 for magnetic measurement probe 16 can be fast accurate install in the central point of being surveyed sample 1 and put, and then improve experimental efficiency and experimental precision.
The magnetic measurement probe 16 is internally provided with a gold-plated copper probe for measuring magnetic flux density and a multi-layer turn coil for measuring magnetic field intensity, a detection signal of the magnetic measurement probe 16 is transmitted to a data acquisition device through amplification and filtering, the data acquisition device controls output of an excitation voltage waveform signal based on the PI principle, the excitation voltage signal is amplified by a power amplifier and then loaded to the low-impedance winding 3, the external magnetic field of the sample wafer 1 to be measured is controlled, and then the accurate control and real-time detection of the magnetic performance of the soft magnetic material under the automatic stress application are realized.
In a further optimized scheme, the positioning substrate 15 comprises two oppositely arranged placing plates 17, an X-shaped cross plate 18 is fixedly connected between the two placing plates 17, a through groove is formed in the cross point of the X-shaped cross plate 18, the magnetic measuring probe 16 is positioned in the through groove, and the X-shaped cross plate 18 supports the magnetic measuring probe 16. The two placing plates 17 position the X-shaped cross plate 18, so that the crossing position of the X-shaped cross plate 18 is the central position of the sample 1 to be measured, a through groove is formed in the position, the magnetic measuring probe 16 is positioned in the through groove, and the magnetic measuring probe 16 is supported by the X-shaped cross plate 18, so that the magnetic measuring probe 16 works normally.
Further optimize the scheme, 16 tops of magnetic measurement probe are provided with apron 19, can dismantle on the apron 19 and be connected with a plurality of mounts 21, and mount 21 is located apron 19 below, and a plurality of mounts 21 cooperate and fix magnetic measurement probe 16, and sliding connection has slip table 22 on the X type cross plate 18, and slip table 22 is located mount 21 below, and slip table 22 supports mount 21. The plurality of fixing frames 21 support the magnetic measuring probe 16, and the sliding table 22 moves, so that the positioning support device is suitable for positioning and supporting the magnetic measuring probes 16 with different sizes. The magnetic measurement probe 16 leads out a measurement signal, and the measurement signal is processed by PI to control an excitation voltage signal, so that the real-time measurement and closed-loop control of the magnetic field are realized.
In one embodiment of the present invention, the top end of the cover plate 19 is provided with a plurality of sliding slots 25, the sliding slots 25 are slidably connected with nonmagnetic screws 20, the top ends of the nonmagnetic screws 20 are abutted against the top end of the cover plate 19, and the bottom ends of the nonmagnetic screws 20 are in threaded connection with the fixed frame 21. By rotating the non-magnetic screws 20, the magnetic measuring probe 16 is clamped by a plurality of fixing frames 21, and the magnetic measuring probe is ensured to be in contact with the sample slice 1 to be measured under the cooperation of the sliding table 22.
The test process comprises the following steps:
the method comprises the steps of placing a sample piece 1 to be measured between an upper Shi Cijian and a lower magnetic applying part, clamping and fixing the sample piece 1 to be measured through two clamps 10, connecting a force arm 11 on one clamp 10, connecting a non-magnetic sliding table 14 on the other clamp 10, then installing a placing plate 17 and an X-shaped cross plate 18 at the top end of the sample piece 1 to be measured, enabling the placing plate 17 and the X-shaped cross plate 18 to be in close contact with the top end of the sample piece 1 to be measured, then placing a magnetic measuring probe 16 in a through groove of the X-shaped cross plate 18, adjusting the height through a non-magnetic screw 20 and a sliding table 22, after the position height adjustment of the magnetic measuring probe 16 is finished, controlling the upper magnetic applying part to move through a lifting sliding table 7, and starting a test after the upper magnetic applying part is in contact with the sample piece 1 to be measured.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (5)
1. The utility model provides a soft magnetic material magnetism real-time detection device under stress automatic application, includes by survey sample wafer (1), its characterized in that: also comprises the following steps of (1) preparing,
the magnetic applying part comprises an upper magnetic applying part and a lower magnetic applying part which have the same structure, the sample to be measured (1) is positioned between the upper magnetic applying part and the lower magnetic applying part, and the upper magnetic applying part is lifted through a driving part;
the two clamping pieces are positioned on two opposite sides of the Shi Ci part and used for clamping the sample piece (1) to be measured, and any clamping piece is stressed through a stress piece;
the detecting piece is arranged on one side, close to the upper magnetism applying piece, of the sample piece (1) to be detected, and the detecting piece is in contact with the sample piece (1) to be detected;
the upper magnetizing part comprises a single-shaft magnetic yoke (2), a low-impedance winding (3) is wound on the single-shaft magnetic yoke (2), the low-impedance winding (3) is arranged corresponding to the sample piece (1) to be measured, the single-shaft magnetic yoke (2) is fixed through a first nonmagnetic clamping part, and the single-shaft magnetic yoke (2) is in transmission connection with the driving part through a second nonmagnetic clamping part;
the single-shaft magnetic yoke (2) comprises a plurality of C-shaped electric steel sheets, the C-shaped electric steel sheets are overlapped to form the single-shaft magnetic yoke (2), two first nonmagnetic clamping pieces are arranged on two side walls of the single-shaft magnetic yoke (2), each first nonmagnetic clamping piece comprises two first U-shaped fixing pieces (4) which are arranged oppositely, the single-shaft magnetic yoke (2) is located between the two first U-shaped fixing pieces (4), and the two first U-shaped fixing pieces (4) are fixedly connected;
the detection piece comprises a positioning substrate (15) arranged on the sample piece (1) to be detected, the bottom end of the positioning substrate (15) is contacted with the top end of the sample piece (1) to be detected, the center of the positioning substrate (15) is detachably connected with a magnetic measurement probe (16), and the magnetic measurement probe (16) is contacted with the top end of the sample piece (1) to be detected;
the positioning base plate (15) comprises two oppositely arranged placing plates (17), an X-shaped cross plate (18) is fixedly connected between the two placing plates (17), a through groove is formed in the cross point of the X-shaped cross plate (18), the magnetic measuring probe (16) is located in the through groove, and the X-shaped cross plate (18) supports the magnetic measuring probe (16);
magnetism measuring probe (16) top is provided with apron (19), can dismantle on apron (19) and be connected with a plurality of mount (21), mount (21) are located apron (19) below, and a plurality of mount (21) cooperation is right magnetism measuring probe (16) are fixed, sliding connection has slip table (22) on X type cross board (18), slip table (22) are located mount (21) below, just slip table (22) are right mount (21) support.
2. The real-time magnetic detection device for soft magnetic materials under automatic stress application according to claim 1, characterized in that: the second does not have the magnetism folder setting and is in first does not have magnetism folder and keeps away from one side of surveyed sample piece (1), the second does not have magnetism folder includes two relative second U type mounting (5) that set up, unipolar yoke (2) lateral wall rigid coupling has even board (6), two second U type mounting (5) are right even board (6) are fixed, second U type mounting (5) inner wall with there is the clearance between unipolar yoke (2).
3. The real-time magnetic detection device for soft magnetic materials under automatic stress application according to claim 2, characterized in that: the driving piece comprises two opposite lifting sliding tables (7), the movable end of each lifting sliding table (7) is fixedly connected with a transmission plate (8), the second U-shaped fixing piece (5) is far away from one side of the single-shaft magnetic yoke (2) and is fixedly connected with a lifting plate (9), the transmission plate (8) is located above the lifting plate (9), and the top end of the transmission plate (8) is abutted against the bottom end of the lifting plate (9).
4. The real-time magnetic detection device for soft magnetic materials under automatic stress application according to claim 1, characterized in that: the clamping part comprises an adjustable clamp (10), the measured sample piece (1) is located in the clamp (10), the measured sample piece (1) is fixed through the clamp (10), one side of the measured sample piece (1) far away from the clamp (10) is fixedly connected with a force arm (11), and the force arm (11) is connected with the stress part through a stress meter adapter rod (12).
5. The real-time magnetic detection device for soft magnetic materials under automatic stress application according to claim 4, characterized in that: stress spare includes stress real-time detection meter (13), real-time detection meter with stress meter changeover lever (12) are connected, stress real-time detection meter (13) are right through stress meter slip table (26) by survey sample piece (1) application of force, another anchor clamps (10) are kept away from by one side rigid coupling of survey sample piece (1) has no magnetism slip table (14), no magnetism slip table (14) are used for another anchor clamps (10) are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210507321.5A CN114814679B (en) | 2022-05-10 | 2022-05-10 | Device for detecting magnetism of soft magnetic material in real time under automatic stress application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210507321.5A CN114814679B (en) | 2022-05-10 | 2022-05-10 | Device for detecting magnetism of soft magnetic material in real time under automatic stress application |
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| Publication Number | Publication Date |
|---|---|
| CN114814679A CN114814679A (en) | 2022-07-29 |
| CN114814679B true CN114814679B (en) | 2023-03-10 |
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| CN202210507321.5A Active CN114814679B (en) | 2022-05-10 | 2022-05-10 | Device for detecting magnetism of soft magnetic material in real time under automatic stress application |
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