CN110927639B - Magnetic alloy material magnetism testing arrangement - Google Patents
Magnetic alloy material magnetism testing arrangement Download PDFInfo
- Publication number
- CN110927639B CN110927639B CN201911228867.1A CN201911228867A CN110927639B CN 110927639 B CN110927639 B CN 110927639B CN 201911228867 A CN201911228867 A CN 201911228867A CN 110927639 B CN110927639 B CN 110927639B
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- hall probe
- supporting plate
- electrode tip
- screw rod
- gear
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
Abstract
The invention discloses a magnetic testing device for a magnetic alloy material, which comprises a testing assembly, wherein the testing assembly comprises an Contraband-shaped mounting frame, a first electrode head, a second electrode head, a Hall probe and a coil, wherein the first electrode head, the second electrode head, the Hall probe and the coil are mounted on the mounting frame; the first electrode tip and the second electrode tip are respectively arranged on the inner surface of the top wall and the inner surface of the bottom wall of the mounting frame; the coil is positioned between the first electrode tip and the second electrode tip; the Hall probe is arranged between the top wall and the bottom wall of the mounting rack through the moving assembly and can move up and down and back and forth; the axis of the Hall probe is vertical to the axes of the first electrode tip and the second electrode tip; and the measuring instrument is electrically connected with the first electrode tip, the second electrode tip, the Hall probe and the coil. The magnetic testing device for the magnetic alloy material disclosed by the invention adopts the Hall probe which moves up and down back and forth, so that the fixing and multi-directional adjustment of the Hall probe are realized, and the measurement result is more accurate.
Description
Technical Field
The invention relates to the technical field of magnetic alloy material testing, in particular to a magnetic testing device for a magnetic alloy material.
Background
In the prior art, after the heat treatment of the permanent magnet alloy, in order to ensure that the magnetic property meets the assembly requirement, the residual magnetism Br and the coercive force Hc of the permanent magnet alloy need to be measured. A common method is to measure the coercivity Hc and remanence Br separately using different equipment. The measurement method of the residual magnetism Br is as follows: magnetizing a sample by a magnetizing device consisting of semiconductor silicon rectifying equipment, an alternating-current voltage stabilizer for ferromagnetic saturation and an electromagnet, measuring an alpha value by using a CST-18 magnetism measuring instrument, and measuring the alpha value by using a formula Br = (alpha/600 x 100000)/(S-cm)2) Br was calculated. The coercivity Hc is measured by the following method: the coercive force Hc was calculated by the formula Hc = KIc (K is a solenoid constant) by measuring the current of the sample placed in the solenoid to make the galvanometer cursor stationary by repeatedly adjusting the current by a measuring device composed of a solenoid, a CD4 magnetic material meter, a rheostat, and a galvanometer. The method has low efficiency, large measurement error and long measurement time, and can not effectively and visually detect the required numerical value.
Disclosure of Invention
Aiming at the prior art, the invention provides a magnetic testing device for a magnetic alloy material, which adopts a Hall probe moving up and down, realizes the fixation and multi-directional adjustment of the Hall probe and ensures that the measuring result is more accurate.
The invention is realized by the following technical scheme: the magnetic testing device for the magnetic alloy material comprises a testing assembly, wherein the testing assembly comprises an Contraband-shaped mounting frame, a first electrode head, a second electrode head, a Hall probe and a coil, wherein the first electrode head, the second electrode head, the Hall probe and the coil are mounted on the mounting frame; the first electrode tip and the second electrode tip are respectively arranged on the inner surface of the top wall and the inner surface of the bottom wall of the mounting frame; the coil is positioned between the first electrode tip and the second electrode tip; the Hall probe is arranged between the top wall and the bottom wall of the mounting rack through the moving assembly and can move up and down and back and forth; the axis of the Hall probe is vertical to the axes of the first electrode tip and the second electrode tip; and the measuring instrument is electrically connected with the first electrode tip, the second electrode tip, the Hall probe and the coil.
Further, the moving assembly comprises a first supporting plate, a second supporting plate, a screw, a limiting block and a gear; the first supporting plate and the second supporting plate are vertically arranged between the top wall and the bottom wall of the mounting rack and are parallel to each other; waist-shaped holes extending along the vertical direction are formed in the first supporting plate and the second supporting plate; the screw rod penetrates through the first supporting plate and the second supporting plate to be connected with the Hall probe; the limiting block and the gear are sleeved on the screw rod; the limiting block is close to the first supporting plate and is in threaded connection with the screw; the gear is connected with the screw rod into a whole; a rack is arranged on the inner side wall of the waist-shaped hole in the second supporting plate; the gear is engaged with the inner side wall of the second support plate.
Furthermore, a compression spring is nested on the screw rod, one end of the compression spring is fixedly connected with one side, close to the second supporting plate, of the first supporting plate, and the other end of the compression spring is in contact with the gear but is not connected with the gear; the compression spring is always kept in a compressed state.
Furthermore, an installation block is also arranged between the Hall probe and the screw, and the installation block is in threaded connection with the screw; the Hall probe is detachably connected with the mounting block.
Furthermore, one side of the screw, which is far away from the Hall probe, is provided with a handle, so that an operator can hold the screw conveniently.
Furthermore, the measuring instrument is externally connected with a computer used for calculating the measuring result and displaying the measuring result.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) according to the magnetic testing device for the magnetic alloy material, the Hall probe moving up and down is adopted, so that the Hall probe is fixed and adjusted in multiple directions, and the measuring result is more accurate.
(2) The moving assembly of the Hall probe of the magnetic alloy material magnetic testing device provided by the invention is meshed with the gear rack by adopting the screw rod, the limiting block in threaded connection with the screw rod and the gear rack, and the Hall probe can move back and forth and left and right only by adjusting the limiting block or the screw rod.
Drawings
FIG. 1 is a side view of a magnetic testing apparatus for magnetic alloy materials in some embodiments of the present invention;
FIG. 2 is a front view of a magnetic testing apparatus for magnetic alloy materials in some embodiments of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 of the present invention;
wherein: 1-mounting bracket, 2-first electrode head, 3-second electrode head, 4-hall probe, 5-coil, 6-measuring apparatu, 7-removal subassembly, 71-first backup pad, 72-second backup pad, 721-waist shape hole, 73-screw rod, 731 compression spring, 74-stopper, 75-gear, 76-installation piece, 77-handle.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
In the present invention, the measuring instrument 6 may be an FE-2100H B & H type measuring instrument 6, and the computer includes a host and a display electrically connected to the host, and is configured to store, calculate, and display the measurement result on the display.
Example 1
As shown in fig. 1 to 3, the magnetic testing device for the magnetic alloy material comprises a testing assembly, wherein the testing assembly comprises an Contraband-shaped mounting frame 1, and a first electrode head 2, a second electrode head 3, a hall probe 4 and a coil 5 which are mounted on the mounting frame 1; the first electrode tip and the second electrode tip 3 are respectively mounted on the inner surface of the top wall and the inner surface of the bottom wall of the mounting frame 1; the coil 5 is located between the first and second electrode tips 3; the Hall probe 4 is arranged between the top wall and the bottom wall of the mounting rack 1 through a moving assembly 7 and can move up and down and back and forth; the axis of the Hall probe 4 is vertical to the axes of the first electrode tip and the second electrode tip 3; and the measuring instrument 6 is electrically connected with the first electrode tip, the second electrode tip 3, the Hall probe 4 and the coil 5.
The moving assembly 7 comprises a first support plate 71, a second support plate 72, a screw 73, a limit block 74 and a gear 75; the first supporting plate 71 and the second supporting plate 72 are vertically arranged between the top wall and the bottom wall of the mounting rack 1 and are parallel to each other; the first support plate 71 and the second support plate 72 are provided with kidney-shaped holes 721 extending in the vertical direction; the screw 73 penetrates through the first supporting plate 71 and the second supporting plate 72 to be connected with the Hall probe 4; the limiting block 74 and the gear 75 are sleeved on the screw 73; the limiting block 74 is close to the first supporting plate 71 and is in threaded connection with the screw 73; the gear 75 is connected with the screw 73 into a whole; the inner side wall of the waist-shaped hole on the second supporting plate 72 is provided with a rack; the gear 75 is engaged with the inner sidewall of the second support plate 72.
The waist-shaped hole of the first support plate 71 is slidably connected with the screw rod 73, so that the screw rod 73 can freely slide up and down along the waist-shaped hole of the first support plate 71.
The specific operation mode is as follows: when the forward and backward movement of the hall probe 4 needs to be realized, an operator holds the screw rod 73 with one hand and then rotates the limit block 74, the limit block 74 is far away from the first support plate 71 or presses the first support plate 71 due to the threaded connection of the limit block 74 and the screw rod 73, and the screw rod 73 drives the first hall probe 4 to be far away from or close to the axes of the first electrode tip and the second electrode tip 3; the forward and backward movement of the hall probe 4 causes the gear 75 and the kidney-shaped hole 721 of the second support plate 72 to slide forward and backward relative to each other.
When the hall probe 4 needs to move up and down, an operator rotates the screw 73 to drive the gear 75 and the rack on the inner side wall of the waist-shaped hole of the second supporting plate 72 to move, so that the hall probe 4 moves up and down.
The teeth of the gear 75 extend in the axial direction of the screw 73, and the length thereof exceeds the length of the forward and backward movement path of the hall probe 4.
In some embodiments, the gear 75 is disposed in an "i" shape, so that the teeth are disposed in the middle portion with a smaller outer diameter, the outer diameters of the ends at the two ends are larger, and the outer diameters of the ends are larger than the width of the kidney-shaped hole 721 of the first supporting plate 71, thereby realizing a limiting effect.
In some embodiments, the screw 73 is further nested with a compression spring 731, one end of the compression spring 731 is fixedly connected to one side of the first support plate 71 close to the second support plate 72, and the other end of the compression spring 731 is in contact with the gear 75 but not connected to the gear 75. The compression spring 731 in the present document is always in a compressed state, and the stopper 74 is always kept pressing the first supporting plate 71 by its restoring force
As a variation of the present disclosure, the waist-shaped holes of the first support plate 71 and the second support plate 72 may be horizontally disposed, and other connection relationships are unchanged, so that the hall probe 4 can move back and forth and left and right.
The specific operation mode is about the same as the realization of the up-and-down movement of the Hall.
When the magnetic testing device described in the present application is used, the magnetic alloy material to be measured is placed between the first electrode tip and the second electrode tip 3, each button switch on the measuring instrument 6 is operated to generate an exciting current to excite the coil 5 to generate a magnetic field, then the magnetic performance of the magnetic material is measured by the hall probe 4 and the measuring instrument 6, and the measurement result is calculated and displayed by the computer.
In some embodiments, a mounting block 76 is further installed between the hall probe 4 and the screw 73, and the mounting block 76 is in threaded connection with the screw 73; the hall probe 4 is detachably connected with the mounting block 76, so that the hall probe 4 can be conveniently mounted and dismounted.
In some embodiments, a handle 77 is provided on a side of the screw 73 away from the hall probe 4, so that an operator can hold the screw 73.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (3)
1. A magnetic alloy material magnetism testing arrangement which characterized in that: comprises that
The testing assembly comprises an Contraband-shaped mounting frame (1), a first electrode head (2), a second electrode head (3), a Hall probe (4) and a coil (5), wherein the first electrode head, the second electrode head and the coil are mounted on the mounting frame (1); the first electrode head and the second electrode head (3) are respectively arranged on the inner surface of the top wall and the inner surface of the bottom wall of the mounting rack (1); the coil (5) is positioned between the first electrode tip and the second electrode tip (3); the Hall probe (4) is arranged between the top wall and the bottom wall of the mounting rack (1) through a moving assembly (7) and can move up and down and back and forth; the axis of the Hall probe (4) is vertical to the axes of the first electrode tip and the second electrode tip (3); and
the measuring instrument (6), the first electrode tip, the second electrode tip (3), the Hall probe (4) and the coil (5) are electrically connected with the measuring instrument (6);
the moving assembly (7) comprises a first supporting plate (71), a second supporting plate (72), a screw rod (73), a limiting block (74) and a gear (75); the first support plate (71) and the second support plate (72) are vertically arranged between the top wall and the bottom wall of the mounting rack (1) and are parallel to each other; the first supporting plate (71) and the second supporting plate (72) are respectively provided with a kidney-shaped hole (721) extending along the vertical direction; the screw rod (73) penetrates through the first supporting plate (71) and the second supporting plate (72) to be connected with the Hall probe (4); the limiting block (74) and the gear (75) are sleeved on the screw rod (73); the limiting block (74) is close to the first supporting plate (71) and is in threaded connection with the screw rod (73); the gear (75) is connected with the screw (73) into a whole; the inner side wall of the waist-shaped hole on the second supporting plate (72) is provided with a rack; the gear (75) is meshed with the inner side wall of the second supporting plate (72); a compression spring (731) is further nested on the screw rod (73), one end of the compression spring (731) is fixedly connected with one side, close to the second supporting plate (72), of the first supporting plate (71), and the other end of the compression spring is in contact with the gear (75) but is not connected with the gear (75); the compression spring (731) is always kept in a compressed state; an installation block (76) is further installed between the Hall probe (4) and the screw rod (73), and the installation block (76) is in threaded connection with the screw rod (73); the Hall probe (4) is detachably connected with the mounting block (76).
2. The magnetic testing device for the magnetic alloy material according to claim 1, wherein: and a handle (77) is arranged on one side of the screw rod (73) far away from the Hall probe (4).
3. The magnetic testing device for the magnetic alloy material according to any one of claims 1 to 2, characterized in that: the measuring instrument (6) is also externally connected with a computer used for calculating the measuring result and displaying the measuring result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911228867.1A CN110927639B (en) | 2019-12-04 | 2019-12-04 | Magnetic alloy material magnetism testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911228867.1A CN110927639B (en) | 2019-12-04 | 2019-12-04 | Magnetic alloy material magnetism testing arrangement |
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| Publication Number | Publication Date |
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| CN110927639A CN110927639A (en) | 2020-03-27 |
| CN110927639B true CN110927639B (en) | 2022-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911228867.1A Active CN110927639B (en) | 2019-12-04 | 2019-12-04 | Magnetic alloy material magnetism testing arrangement |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1610037A (en) * | 2003-10-24 | 2005-04-27 | 伊顿公司 | Circuit breaker including a flexible cantilever lever for snap close operation |
| CN202837237U (en) * | 2012-10-22 | 2013-03-27 | 重庆交通大学 | Portable magnetic metal fatigue tester |
| CN108872892A (en) * | 2018-06-27 | 2018-11-23 | 芜湖衡西微量计量科技有限公司 | Permanent-magnet material magnetic property determination method for motor |
| CN209280904U (en) * | 2018-11-27 | 2019-08-20 | 东莞市磁润电子有限公司 | A kind of magnetic material magnetic energy tester |
-
2019
- 2019-12-04 CN CN201911228867.1A patent/CN110927639B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1610037A (en) * | 2003-10-24 | 2005-04-27 | 伊顿公司 | Circuit breaker including a flexible cantilever lever for snap close operation |
| CN202837237U (en) * | 2012-10-22 | 2013-03-27 | 重庆交通大学 | Portable magnetic metal fatigue tester |
| CN108872892A (en) * | 2018-06-27 | 2018-11-23 | 芜湖衡西微量计量科技有限公司 | Permanent-magnet material magnetic property determination method for motor |
| CN209280904U (en) * | 2018-11-27 | 2019-08-20 | 东莞市磁润电子有限公司 | A kind of magnetic material magnetic energy tester |
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| CN110927639A (en) | 2020-03-27 |
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