CN109358299B - Device and method for detecting magnetic strength of magnetizing motor shell - Google Patents
Device and method for detecting magnetic strength of magnetizing motor shell Download PDFInfo
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- CN109358299B CN109358299B CN201811082977.7A CN201811082977A CN109358299B CN 109358299 B CN109358299 B CN 109358299B CN 201811082977 A CN201811082977 A CN 201811082977A CN 109358299 B CN109358299 B CN 109358299B
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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
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
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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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Abstract
The utility model provides a magnetizing motor casing magnetic strength detection device, includes base, stand, gauss meter, install on the base and vertically feed and shake the seat, vertically feed and shake seat upper portion and install the infeed and shake the seat, the infeed shakes seat upper portion fixed mounting carousel, the chuck is installed on carousel upper portion, the headstock is installed to the stand upper end, headstock internally mounted has the worm, depression bar under the worm one end side is connected, depression bar one side is equipped with the location couple under the headstock installation, the main shaft is installed to the headstock distolateral, the outside corresponding worm position of main shaft encircles there is the ring gear, the inside cardboard that is provided with of headstock, the ring gear is located between two sets of cardboards, the gauss meter includes display device and test probe, test probe fixed mounting is at the main shaft lower extreme. The invention is easy to determine the highest value of detection, can not cause the phenomenon of larger deviation of the detection result in multiple measurements, and reduces the detection error.
Description
Technical Field
The invention relates to a magnetic field detection device, in particular to a device and a method for detecting the magnetic strength of a magnetizing motor shell.
Background
A gaussmeter is used for measuring static or dynamic (alternating current) magnetic induction intensity of an object at one point in space, a Hall sensor (a fluxgate sensor with higher precision can be selected) passes through magnetic lines of the object to generate current and voltage, and the magnetic induction intensity is displayed on main equipment.
When the gauss meter is used for measuring the magnetic strength of the magnetic pole inside the motor shell, the detection probe is required to be manually inserted into the motor shell along the axis direction of the motor shell, the measurement method is adopted, the magnetic induction strength of a point on the space is detected by the gauss meter, the detection probe is easy to shake when being manually held by a person, the detection probe and the motor shell cannot be guaranteed to be relatively stable, the probe is difficult to control to be inserted into the length inside the motor shell, the deviation of the measured value is large every time during multiple measurements, the maximum value is difficult to determine, and the error of the detection result is large.
Disclosure of Invention
The invention aims to solve the problems that when a gaussmeter is used for detecting the magnetic strength of a magnetic pole in a motor casing, a detection probe is manually inserted into the motor casing, so that the detection probe and the motor casing cannot be relatively stable, the length of the probe inserted into the motor casing is difficult to control, the deviation of a measured value is large each time when the probe is measured for multiple times, the maximum value is difficult to determine, and the error of a detection result is large.
A magnetizing motor casing magnetic strength detection device comprises a base, a stand column and a gaussmeter, wherein the stand column is vertically installed on the upper portion of the base, a vertical feeding rocking seat is installed on the base, a horizontal feeding rocking seat is installed on the upper portion of the vertical feeding rocking seat, a turntable is fixedly installed on the upper portion of the horizontal feeding rocking seat, a chuck is installed on the upper portion of the turntable, a spindle box is installed at the upper end of the stand column, a worm is installed inside the spindle box, one end of the worm is connected with a lower pressing rod, the lower pressing rod is located outside the spindle box, a positioning hook is arranged on one side of the spindle box where the lower pressing rod is installed, a spindle is installed on the end side of the spindle box and perpendicular to the base surface, a gear ring is wound at the position, corresponding to the worm, outside the spindle box is internally provided with a clamping plate, the spindle penetrates through the clamping plates, the gear ring is located between the two clamping plates, and the gaussmeter comprises a display device and a detection probe, the detection probe is fixedly arranged at the lower end of the main shaft and is electrically connected with the display device.
Furthermore, a torsion spring is sleeved on the side of the worm end, two groups of limiting columns are arranged on one side, where the lower pressing rod is installed, of the spindle box, and the two groups of limiting columns are symmetrically located on two sides of a connecting point of the lower pressing rod and the worm respectively.
Furthermore, an adjusting shaft sleeve is sleeved outside the main shaft in a surrounding manner, the gear ring is sleeved outside the adjusting shaft sleeve through a threaded connecting ring, a fine adjustment knob is clamped at the bottom end of the adjusting shaft sleeve, and the fine adjustment knob is sleeved on the main shaft through the threaded connecting ring.
Furthermore, the adjusting shaft sleeve penetrates through the clamping plate, a first limiting lug is arranged on the inner side surface of the clamping plate along the axis direction of the adjusting shaft sleeve, a first limiting groove is arranged at the corresponding position of the surface of the adjusting shaft sleeve, the first limiting lug is located inside the first limiting groove, a second limiting lug is arranged on the inner surface of the adjusting shaft sleeve along the axis direction, a second limiting groove is arranged at the corresponding position of the surface of the main shaft, and the second limiting lug is located inside the second limiting groove.
Furthermore, one side of the gear ring connected with the worm is located outside the clamping plate, the side face of the gear ring corresponding to the clamping plate is provided with a semi-arc groove respectively, and a ball is arranged inside the semi-arc groove.
A method for detecting the magnetic strength of a magnetizing motor casing comprises the following operations:
a1, numbering the taken motor shells one by one, placing one magnetic pole N, S into the motor shell, and placing the shaft head of the motor shell into a chuck upwards and locking the motor shell;
a2, pressing the lower pressure rod to enable the detection probe to be positioned at the upper part of the motor casing, checking whether the detection probe is positioned in the same Z axis with the central point of the motor casing, if not, moving the transverse feeding rocking base and the longitudinal feeding rocking base to adjust the chuck to move on the X axis and the Y axis, and enabling the central point of the motor casing and the detection probe to be positioned in the same axis in the Z axis;
a3, pressing down the depression bar and inserting the test probe inside the motor casing by motor casing upper portion central point department, the numerical value on the display device of gauss meter can change from small to big to small again in the in-process that pushes down, transfer fine setting knob this moment and make numerical value stop in maximum value department and fixed depression bar, the chuck is rotated simultaneously and the numerical value maximum position and record on finding the display device of gauss meter, detect and accomplish.
The invention has the beneficial effects that:
the detection probe is fixedly arranged on the stand column, the motor shell is fixedly arranged on the chuck, the stand column is adjusted to move downwards by pressing the pressing rod, the detection probe is inserted into the motor shell, the motor shell and the detection probe cannot shake relatively in the detection process, the highest value of detection is easy to determine, the phenomenon of large deviation of the detection result cannot be caused in multiple times of measurement, and the detection error is reduced.
The torsion spring is sleeved on the side of the worm end, so that the spindle can automatically recover to the upper end position after detection is finished, the operation is convenient, one side of a pressing rod installed on the spindle box is provided with a positioning hook and two sets of limiting columns, the two sets of limiting columns are respectively and symmetrically arranged on two sides of a connecting point of the pressing rod and the worm, the phenomenon that the main shaft is upwards deviated or downwards deviated too much due to overlarge rotation amount of the pressing rod in the rotation process is avoided, and the main shaft is prevented from being damaged.
Through the outside ring cover of main shaft have the adjusting collar, the ring gear passes through the screw thread go-between cover and is in the adjusting collar outside, and adjusting collar bottom joint has the fine setting knob, utilizes the fine setting knob to be convenient for adjust the test probe after test probe rotates to motor casing inside and reciprocates, conveniently finds out gauss count value maximum value.
The semi-arc grooves are respectively arranged on the side faces of the toothed ring corresponding to the clamping plates, and balls are arranged inside the semi-arc grooves, so that friction between the toothed ring and the clamping plates is reduced.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a vertical sectional structure view of the spindle box of the present invention;
FIG. 3 is a cross sectional view of the spindle head of the present invention;
in the figure: 1. a base; 2. a column; 3. a gauss meter; 12. a longitudinal feed cradle; 13. a transverse feeding rocking base; 14. a turntable; 15. a chuck; 20. a main spindle box; 21. a worm; 22. a lower pressure lever; 23. positioning the hook; 24. a main shaft; 25. a toothed ring; 26. clamping a plate; 31. a display device; 32. detecting the probe; 41. a torsion spring; 42. a limiting column; 51. adjusting the shaft sleeve; 52. finely adjusting a knob; 61. a first limit bump; 62. a first limit groove; 63. a second limit bump; 64. a second limit groove; 71. a half-arc groove; 72. and a ball.
Detailed Description
The technical means, the creation features, the achievement purposes and the effects of the invention are easy to understand and understand, and the invention is further explained by combining the specific drawings.
Example 1
Shown in combination with fig. 1 and 2; a magnetizing motor casing magnetic strength detection device comprises a base 1, a stand column 2 and a Gauss meter 3, wherein the stand column 2 is vertically installed on the upper portion of the base 1, a longitudinal feeding rocking base 12 is installed on the base 1, a transverse feeding rocking base 13 is installed on the upper portion of the longitudinal feeding rocking base 12, a rotary table 14 is fixedly installed on the upper portion of the transverse feeding rocking base 13, a chuck 15 is installed on the upper portion of the rotary table 14, a spindle box 20 is installed at the upper end of the stand column 2, a worm 21 is installed inside the spindle box 20, one end side of the worm 21 is connected with a lower pressing rod 22, the lower pressing rod 22 is located outside the spindle box 20, one side of the spindle box 20 where the lower pressing rod 22 is installed is provided with a positioning hook 23, a spindle 24 is installed on the end side of the spindle box 20, the spindle 24 is perpendicular to the surface of the base 1, a gear ring 25 is annularly wound on the outer portion of the spindle 24 corresponding to the position of the worm 21, a clamping plate 26 is arranged inside the spindle box 20, the spindle 24 penetrates through the clamping plate 26, and the gear ring 25 is located between the two groups of clamping plates 26, the gauss meter 3 comprises a display device 31 and a detection probe 32, wherein the detection probe 32 is fixedly arranged at the lower end of the main shaft 24, and the detection probe 32 is electrically connected with the display device 31.
The end side of the worm 21 is sleeved with a torsion spring 41, one side of the main spindle box 20, which is provided with the lower pressure rod 22, is provided with two groups of limiting columns 42, and the two groups of limiting columns 42 are respectively and symmetrically positioned at two sides of the connecting point of the lower pressure rod 22 and the worm 21.
An adjusting shaft sleeve 51 is sleeved outside the main shaft 24 in a surrounding manner, the gear ring 25 is sleeved outside the adjusting shaft sleeve 51 through a threaded connecting ring, a fine adjustment knob 52 is clamped at the bottom end of the adjusting shaft sleeve 51, and the fine adjustment knob 52 is sleeved on the main shaft 24 through a threaded connecting ring.
When the magnetic pole in the motor casing needs to be detected, the motor casing is fixedly arranged on a chuck 15, the longitudinal feeding base 12 and the transverse feeding base 13 are adjusted to enable the center point of the motor casing and a detection probe 32 to be positioned on the same Z axis, the lower pressure rod 22 is pressed to drive the worm 21 to rotate, the fluted disc 25 rotates to push the adjusting shaft sleeve 51 to move downwards when the worm 21 rotates, the main shaft 24 is pushed to move downwards when the adjusting shaft sleeve 51 moves downwards to enable the detection probe 32 to extend downwards into the motor casing, the lower pressure rod 22 is fixed by using the positioning hook 23 after the display device 31 of the gaussmeter 3 finds the near maximum value, the lower pressure rod 22 is prevented from moving, the fine adjustment knob 52 is rotated to find the measured maximum value, the turntable 14 is rotated to enable the chuck 15 to follow the coaxial rotation, the measured maximum value is found and recorded in the rotating process, the detection is finished, the positioning hook 23 is removed after the detection is finished, the worm 21 is restored to the original position by the torsion spring 41, so that the spindle 24 is retracted into the spindle box 20.
As shown in fig. 2; one side of the toothed ring 25 connected with the worm 21 is located outside the snap-gauge 26, the side of the toothed ring 25 corresponding to the snap-gauge 26 is provided with a semi-arc groove 71, and a ball 72 is arranged inside the semi-arc groove 71.
A method for detecting the magnetic strength of a magnetizing motor casing comprises the following operations:
a1, numbering the taken motor shells one by one, placing one magnetic pole N, S into the motor shell, and placing the shaft head of the motor shell into a chuck upwards and locking the motor shell;
a2, pressing the lower pressure rod to enable the detection probe to be positioned at the upper part of the motor casing, checking whether the detection probe is positioned in the same Z axis with the central point of the motor casing, if not, moving the transverse feeding rocking base and the longitudinal feeding rocking base to adjust the chuck to move on the X axis and the Y axis, and enabling the central point of the motor casing and the detection probe to be positioned in the same axis in the Z axis;
a3, pressing the lower pressure lever to insert the detection probe into the motor casing from the upper center point of the motor casing, changing the value on the display device of the gaussmeter from small to large to small in the process of pressing down, moving the lower pressure lever to stop the value at the maximum range and then fixing the lower pressure lever, and simultaneously rotating the chuck to find the maximum position of the value on the display device of the gaussmeter and record, thus completing the detection.
Example 2
Shown in combination with fig. 1 and 2; a magnetizing motor casing magnetic strength detection device comprises a base 1, a stand column 2 and a Gauss meter 3, wherein the stand column 2 is vertically installed on the upper portion of the base 1, a longitudinal feeding rocking base 12 is installed on the base 1, a transverse feeding rocking base 13 is installed on the upper portion of the longitudinal feeding rocking base 12, a rotary table 14 is fixedly installed on the upper portion of the transverse feeding rocking base 13, a chuck 15 is installed on the upper portion of the rotary table 14, a spindle box 20 is installed at the upper end of the stand column 2, a worm 21 is installed inside the spindle box 20, one end side of the worm 21 is connected with a lower pressing rod 22, the lower pressing rod 22 is located outside the spindle box 20, one side of the spindle box 20 where the lower pressing rod 22 is installed is provided with a positioning hook 23, a spindle 24 is installed on the end side of the spindle box 20, the spindle 24 is perpendicular to the surface of the base 1, a gear ring 25 is annularly wound on the outer portion of the spindle 24 corresponding to the position of the worm 21, a clamping plate 26 is arranged inside the spindle box 20, the spindle 24 penetrates through the clamping plate 26, and the gear ring 25 is located between the two groups of clamping plates 26, the gauss meter 3 comprises a display device 31 and a detection probe 32, wherein the detection probe 32 is fixedly arranged at the lower end of the main shaft 24, and the detection probe 32 is electrically connected with the display device 31.
The end side of the worm 21 is sleeved with a torsion spring 41, one side of the main spindle box 20, which is provided with the lower pressure rod 22, is provided with two groups of limiting columns 42, and the two groups of limiting columns 42 are respectively and symmetrically positioned at two sides of the connecting point of the lower pressure rod 22 and the worm 21.
An adjusting shaft sleeve 51 is sleeved outside the main shaft 24 in a surrounding manner, the gear ring 25 is sleeved outside the adjusting shaft sleeve 51 through a threaded connecting ring, a fine adjustment knob 52 is clamped at the bottom end of the adjusting shaft sleeve 51, and the fine adjustment knob 52 is sleeved on the main shaft 24 through a threaded connecting ring.
When the magnetic pole in the motor casing needs to be detected, the motor casing is fixedly arranged on a chuck 15, the longitudinal feeding base 12 and the transverse feeding base 13 are adjusted to enable the center point of the motor casing and a detection probe 32 to be positioned on the same Z axis, the lower pressure rod 22 is pressed to drive the worm 21 to rotate, the fluted disc 25 rotates to push the adjusting shaft sleeve 51 to move downwards when the worm 21 rotates, the main shaft 24 is pushed to move downwards when the adjusting shaft sleeve 51 moves downwards to enable the detection probe 32 to extend downwards into the motor casing, the lower pressure rod 22 is fixed by using the positioning hook 23 after the display device 31 of the gaussmeter 3 finds the near maximum value, the lower pressure rod 22 is prevented from moving, the fine adjustment knob 52 is rotated to find the measured maximum value, the turntable 14 is rotated to enable the chuck 15 to follow the coaxial rotation, the measured maximum value is found and recorded in the rotating process, the detection is finished, the positioning hook 23 is removed after the detection is finished, the worm 21 is restored to the original position by the torsion spring 41, so that the spindle 24 is retracted into the spindle box 20.
As shown in fig. 2; one side of the toothed ring 25 connected with the worm 21 is located outside the snap-gauge 26, the side of the toothed ring 25 corresponding to the snap-gauge 26 is provided with a semi-arc groove 71, and a ball 72 is arranged inside the semi-arc groove 71.
A method for detecting the magnetic strength of a magnetizing motor casing comprises the following operations:
a1, numbering the taken motor shells one by one, placing one magnetic pole N, S into the motor shell, and placing the shaft head of the motor shell into a chuck upwards and locking the motor shell;
a2, pressing the lower pressure rod to enable the detection probe to be positioned at the upper part of the motor casing, checking whether the detection probe is positioned in the same Z axis with the central point of the motor casing, if not, moving the transverse feeding rocking base and the longitudinal feeding rocking base to adjust the chuck to move on the X axis and the Y axis, and enabling the central point of the motor casing and the detection probe to be positioned in the same axis in the Z axis;
a3, pressing the lower pressure lever to insert the detection probe into the motor casing from the upper center point of the motor casing, changing the value on the display device of the gaussmeter from small to large to small in the process of pressing down, moving the lower pressure lever to stop the value at the maximum range and then fixing the lower pressure lever, and simultaneously rotating the chuck to find the maximum position of the value on the display device of the gaussmeter and record, thus completing the detection.
As shown in fig. 3, the adjusting shaft sleeve 51 penetrates through the clamping plate 26, a first limiting protrusion 61 is arranged on the inner side surface of the clamping plate 26 along the axial direction of the adjusting shaft sleeve 51, a first limiting groove 62 is arranged at a position corresponding to the surface of the adjusting shaft sleeve 51, the first limiting protrusion 61 is positioned inside the first limiting groove 62, a second limiting protrusion 63 is arranged on the inner surface of the adjusting shaft sleeve 51 along the axial direction, a second limiting groove 64 is arranged at a position corresponding to the surface of the main shaft 24, and the second limiting protrusion 63 is positioned inside the second limiting groove 64. When the gear ring rotates, the adjusting shaft sleeve is prevented from rotating along with the gear ring, and when the fine adjustment knob rotates, the main shaft is prevented from rotating along with the fine adjustment knob.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a magnetizing motor casing magnetic strength detection device which characterized in that: including base (1), stand (2) and gaussmeter (3), stand (2) are installed on base (1) upper portion perpendicularly, install vertical feed on base (1) and shake seat (12), vertical feed is shaken seat (12) upper portion and is installed transverse feed and is shaken seat (13), transverse feed shakes seat (13) upper portion fixed mounting carousel (14), chuck (15) are installed on carousel (14) upper portion, headstock (20) are installed to stand (2) upper end, headstock (20) internally mounted has worm (21), depression bar (22) down is connected to worm (21) one end side, depression bar (22) are located headstock (20) outside down, depression bar (22) one side is equipped with location couple (23) under headstock (20) installation, main shaft (24) are installed to headstock (20) distolateral, main shaft (24) are perpendicular to base (1) face, a gear ring (25) surrounds the outer part of the main shaft (24) corresponding to the position of the worm (21), a clamping plate (26) is arranged inside the main shaft box (20), the main shaft (24) penetrates through the clamping plate (26), the gear ring (25) is positioned between the two groups of clamping plates (26), the gauss meter (3) comprises a display device (31) and a detection probe (32), the detection probe (32) is fixedly installed at the lower end of the main shaft (24), and the detection probe (32) is electrically connected with the display device (31);
a torsion spring (41) is sleeved on the end side of the worm (21), two groups of limiting columns (42) are arranged on one side of the spindle box (20) where the lower pressing rod (22) is installed, and the two groups of limiting columns (42) are symmetrically arranged on two sides of a connecting point of the lower pressing rod (22) and the worm (21) respectively;
an adjusting shaft sleeve (51) is sleeved outside the main shaft (24) in a surrounding manner, the gear ring (25) is sleeved outside the adjusting shaft sleeve (51) through a threaded connecting ring, a fine adjustment knob (52) is clamped at the bottom end of the adjusting shaft sleeve (51), and the fine adjustment knob (52) is sleeved on the main shaft (24) through a threaded connecting ring;
the method for detecting the magnetic strength of the magnetizing motor shell comprises the following operations:
a1, numbering the taken motor shells one by one, placing one magnetic pole N, S into the motor shell, and placing the shaft head of the motor shell into a chuck upwards and locking the motor shell;
a2, pressing the lower pressing rod to enable the detection probe to be located at the upper part of the motor shell, checking whether the detection probe is located in the same Z axis with the central point of the motor shell, and if not, moving the transverse feeding rocking base and the longitudinal feeding rocking base to adjust the chuck to move on the X axis and the Y axis so that the central point of the motor shell and the detection probe are located on the same axis in the Z axis;
a3, pressing down the depression bar and inserting the test probe inside the motor casing by motor casing upper portion central point department, the numerical value on the display device of gauss meter can change from small to big to small again in the in-process that pushes down, transfer fine setting knob this moment and make numerical value stop in maximum value department and fixed depression bar, the chuck is rotated simultaneously and the numerical value maximum position and record on finding the display device of gauss meter, detect and accomplish.
2. The device for detecting the magnetic strength of the magnetized motor casing according to claim 1, wherein: the adjusting shaft sleeve (51) penetrates through the clamping plate (26), a first limiting bump (61) is arranged on the inner side face of the clamping plate (26) along the axis direction of the adjusting shaft sleeve (51), a first limiting groove (62) is arranged at the corresponding position of the surface of the adjusting shaft sleeve (51), the first limiting bump (61) is located inside the first limiting groove (62), a second limiting bump (63) is arranged on the inner surface of the adjusting shaft sleeve (51) along the axis direction, a second limiting groove (64) is arranged at the corresponding position of the surface of the main shaft (24), and the second limiting bump (63) is located inside the second limiting groove (64).
3. The device for detecting the magnetic strength of the magnetized motor casing according to claim 1, wherein: the snap-gauge is located outside snap-gauge (26) on one side that ring gear (25) and worm (21) are connected, the corresponding snap-gauge (26) position in ring gear (25) side is equipped with semi-ring groove (71) respectively, semi-ring groove (71) internally mounted has ball (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811082977.7A CN109358299B (en) | 2018-09-17 | 2018-09-17 | Device and method for detecting magnetic strength of magnetizing motor shell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811082977.7A CN109358299B (en) | 2018-09-17 | 2018-09-17 | Device and method for detecting magnetic strength of magnetizing motor shell |
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| CN109358299A CN109358299A (en) | 2019-02-19 |
| CN109358299B true CN109358299B (en) | 2021-10-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4805046B2 (en) * | 2006-07-20 | 2011-11-02 | 聰 島本 | Metal material damage evaluation apparatus using high sensitivity magnetic flux density meter, damage evaluation method and damage evaluation system |
| CN101789323B (en) * | 2009-04-21 | 2012-12-12 | 袁建平 | Keyboard key and assembling method thereof |
| CN101876691B (en) * | 2009-11-20 | 2012-11-14 | 清华大学 | System and method for testing magnetoelectricity property of multiferroic thin-film material |
| CN202910706U (en) * | 2012-11-30 | 2013-05-01 | 辽宁科技大学 | Narrow groove inner surface polishing device |
| CN103675717B (en) * | 2013-11-05 | 2016-03-23 | 中国科学院电子学研究所 | A kind of device for measuring magnetic field |
| CN104483640B (en) * | 2014-12-18 | 2017-03-08 | 重庆吉力芸峰实业(集团)有限公司 | Magneto rotor automatic magnetism-charging test device and its method for testing that magnetizes |
| CN204287458U (en) * | 2014-12-18 | 2015-04-22 | 重庆吉力芸峰实业(集团)有限公司 | Magneto rotor automatic magnetism-charging proving installation |
| CN104967265A (en) * | 2015-07-20 | 2015-10-07 | 株洲华赢实业有限公司 | Motor coil direction changing device |
| CN206072118U (en) * | 2016-08-25 | 2017-04-05 | 四川金地亚美科技有限公司 | The bearing holder (housing, cover) of roll structure |
| CN107765196B (en) * | 2017-09-27 | 2019-04-05 | 东北大学 | It is a kind of for measuring the experimental rig of magnetic matrix induced magnetic field |
| CN207563299U (en) * | 2017-09-29 | 2018-07-03 | 天津荣辉电子有限公司 | Annular neodymium iron boron product Magnetic Induction Density Distribution automatic checkout system |
| CN108481048B (en) * | 2018-07-11 | 2019-02-01 | 深圳市丰瑞鑫科技有限公司 | A kind of clamp assembly of novel clamping workpiece |
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