Calibration device and system of rotor surface magnetic detection equipment

Abstract

The invention relates to a calibration device and system for rotor surface magnetic detection equipment, and belongs to the field of calibration devices.The calibration device comprises a probe calibration piece, and the probe calibration piece comprises a calibration magnet; the calibration magnet is of a cube structure, and a first through hole is formed in the bottom face of the calibration magnet. The method comprises the following steps: firstly, detecting a probe calibration piece by an authoritative detection mechanism to obtain a calibration value, installing the probe calibration piece at a fixed standard position in surface magnetic detection equipment, selecting a standard sample piece to the authoritative detection mechanism for detection to obtain a multi-point standard value of the standard sample piece, and putting the multi-point standard value into production detection. The probe is moved to the probe calibration piece at the fixed standard position to calibrate the probe and the probe positioning mechanism, and then the standard sample piece is used for multi-point calibration. The problems that an existing calibration device cannot switch between centering detection calibration and surrounding detection calibration of the rotor and the detection equipment, and the rotor is inconvenient to take and place are solved.

Description

TECHNICAL FIELD

[0001] The application relates to a calibration device and system of a rotor surface magnetic detection equipment and belongs to the calibration device field. BACKGROUND

[0002] The rotor surface magnetic detection equipment is mainly used for detecting the distribution of the rotor surface magnetic field and is widely applied to quality detection of equipment such as motors and generators. The rotor is an important component of the motor or generator, and the surface state and magnetic field distribution of the rotor directly affect the operation stability of the equipment. The rotor surface may have cracks, defects or uneven magnetic field distribution due to long-term use, external environment or manufacturing process. Therefore, the rotor surface magnetic detection equipment needs to be used for surface magnetic detection. When the detection equipment is used, the detection equipment and the rotor need to be calibrated.

[0003] The patent for invention with the publication number CN117310575B discloses a calibration system and method of a rotor surface magnetic detection equipment, which comprises a probe calibration piece. The probe calibration piece comprises a calibration magnet. The calibration magnet is in a cubic structure, and a first through hole is formed in the bottom surface of the calibration magnet. The probe calibration piece is detected by an authoritative detection institution to obtain a calibration value. The probe calibration piece is installed at a fixed standard position in the surface magnetic detection equipment, and a standard sample is selected and sent to the authoritative detection institution to obtain a multi-point standard value of the standard sample. Before being put into production and detection, the probe is moved to the probe calibration piece at the fixed standard position to calibrate the probe and the probe positioning mechanism. Then, the standard sample is used for multi-point calibration. The multi-point data is calibrated to the standard value of the standard sample, and then put into use. The multi-point data calibration covers the influence of the system position control error. Compared with the prior art of single-point calibration of the Hall probe, the method is more accurate and reliable. Although the function of multi-point data calibration can be realized, the rotor and the detection equipment cannot be switched between the center detection calibration and the surrounding detection calibration in use, and the adaptability is insufficient. Moreover, the existing calibration equipment cannot automatically expand the structure at the top of the device while switching to the surrounding detection calibration, which is inconvenient for taking and placing the rotor.

[0004] Therefore, we improve it and propose a calibration device and system of a rotor surface magnetic detection equipment. SUMMARY

[0005] (1) The technical problem to be solved by the present application is that the existing calibration device cannot switch between the center detection calibration and the surrounding detection calibration of the rotor and the detection equipment, and cannot automatically expand the structure at the top of the device while switching to the surrounding detection calibration, which is inconvenient for taking and placing the rotor.

[0006] (2) Technical scheme In order to achieve the above-mentioned purpose of the application, the application provides a calibration device for a rotor surface magnet detection equipment, which comprises a first support disc, a rotating ring is rotatably installed on the first support disc, a support plate is fixedly connected to the rotating ring, a second support disc is fixedly arranged in the middle of the first support disc, a fixed cylinder is installed on the second support disc, a first electric push rod is installed in the fixed cylinder, a connecting cover and a second electric push rod are connected to the first electric push rod, a third support disc is fixedly arranged above the second electric push rod, an active rod is arranged to penetrate through the fixed cylinder, a support assembly and a support rod are installed on the active rod, a fitting assembly is installed on the support assembly, a fixed sleeve is installed on the support rod, a connecting block is welded to the fixed sleeve, the connecting block is fixedly arranged on the connecting block, an extension rod is installed in the connecting block, a rotating assembly is installed on the connecting block, and a centering assembly is installed on the extension rod.

[0007] Among them, the first support disc, the second support disc and the fixed cylinder are fixedly connected as a whole structure, the central axis of the fixed cylinder is collinear with the central axis of the rotating ring, and the support plate forms a first rotating structure between the rotating ring and the first support disc.

[0008] Among them, the connecting cover increases from bottom to top, and the inner and outer diameters of the connecting cover increase, the active rods are arranged along the circumference of the connecting cover, and the side of the active rod close to the central axis of the connecting cover is a hemispherical structure.

[0009] Among them, the support assembly comprises a sliding rod slidingly installed on the second support disc, a first spring is fixedly connected to the sliding rod, a support block is fixedly arranged on the second support disc, and the first spring is connected with the support block.

[0010] Among them, the fitting assembly comprises a first connecting plate fixedly connected to the support rod, second connecting plates are arranged on the two sides of the first connecting plate, a first fixed shaft is fixedly connected to the first connecting plate, a second fixed shaft is fixedly connected to the second connecting plate, an abutment plate is rotatably arranged on the outer side of the second fixed shaft and the first fixed shaft, and torsional springs are fixedly connected between the abutment plate and the second fixed shaft and the first fixed shaft.

[0011] Among them, the connecting block is fixedly connected with a fixed rod, the bottom of the fixed rod is connected with the second support disc, the extension rod is rotatably connected with the connecting block, and the extension rods are arranged in a counterclockwise direction and increase in height.

[0012] Among them, the rotating assembly comprises a damping block rotatably installed in the connecting block, a damping plate is abutted and arranged on the outer side of the damping block, a guide rod is fixedly connected to the damping plate, and the guide rod penetrates through the inside of the support plate.

[0013] The elastic rope is fixed between the guide rod and the support plate, and is symmetrically distributed on both sides of the guide rod.

[0014] The centering assembly comprises a sliding plate slidingly installed in the extension rod, a connecting disc is fixedly connected to the sliding plate, a connecting shaft is fixedly arranged on the connecting disc, an adjusting disc is rotatably connected to the outer side of the connecting shaft, a second through hole is formed in the adjusting disc, a first through hole is formed in the middle of the connecting disc, the second through holes are uniformly arranged along the circumference of the adjusting disc, and the diameters of the second through holes are different.

[0015] A calibration system of a rotor surface magnetic detection device, the calibration system comprises a calibration device of a rotor surface magnetic detection device, a motor and a laser arranged above the centering assembly, a rotating plate is fixedly arranged on the laser, the rotating plate is rotatably installed below the damping shaft, a placing groove for placing the rotor surface magnetic detection device is arranged on the rotating plate, a top plate is rotatably arranged above the damping shaft, and the output shaft of the motor is connected with the top plate.

[0016] (Three) beneficial effects The calibration device and system of the rotor surface magnetic detection device have the following beneficial effects: 1. The device is provided with a connecting cover, a movable rod, a fitting assembly and a rotating assembly, the first electric push rod is shortened, the connecting cover moves downward and abuts against the movable rods, drives the movable rods, the support rods and the fitting assemblies to expand outward synchronously, the rotor is placed above the third support disc, the first electric push rod is elongated to make the fitting assemblies shrink synchronously, the central axis of the rotor is kept aligned with the central axis of the device under the action of the first spring, whether the laser emitted by the laser above the centering assembly can pass through the first through hole and the second through hole on the connecting disc can be detected, so that the function of centering and calibrating the surface magnetic detection device and the rotor is realized, when the around detection is needed, the rotating ring is rotated, the support plate drives the damping plate to rotate, the damping block drives the extension rod to rotate, the connecting discs can be arranged around after the extension rod is rotated, so that the around track can be calibrated during the around detection, the functionality of the device is enhanced, and the problem that the existing calibration device cannot switch between the centering detection and calibration of the rotor and the detection device and the around detection and calibration is solved.

[0017] 2. By setting the support assembly, support rod, extension rod and centering assembly, when the movable rod is pushed outward by the connecting cover, the second electric push rod can be extended or shortened, thereby changing the support height of the third support disc, so as to adjust and calibrate the height position of the rotor. When the surrounding detection is needed, the top plate can be rotated by the motor drive, so that the detection assembly placed in the groove below the damping shaft makes circular motion. By changing the initial angle of the rotating plate, the circular motion radius of the surface magnetic detection device placed in the groove is changed to adapt to the calibration work under different detection effects.

[0018] 3. By setting the centering assembly, the function of adjusting the detection accuracy of the device is realized, combined with Figure 2 It can be seen that the device can adjust the disc on the connecting disc to calibrate the work, and the smaller the aperture of the second through hole used, the higher the calibration accuracy, and the larger the aperture of the second through hole used, the lower the calibration accuracy of the device.

[0019] 4. By setting the rotating ring, support plate and rotating assembly, the device can quickly detect the position to be calibrated during calibration, and when the rotating ring is rotated, the damping block is rotated by the guide rod on the support plate, the damping block changes the angle of the extension rod, when the distance between each extension rod and the central axis of the device is different, the position of the guide rod in the support plate is also different, so that the rotating ring can still drive each extension rod to rotate synchronously when the rotating ring is rotated, and the stability of the device during work is enhanced. When each extension rod on the device rotates synchronously, the top channel can be opened, which facilitates subsequent taking and placing the rotor, and enhances the convenience of using the device. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is Figure 1 It is an enlarged schematic view of the structure at A in the middle; Figure 3 It is Figure 1 It is an enlarged schematic view of the structure at B in the middle; Figure 4 It is a schematic view of the connecting structure of the connecting block and the fixed rod of the present application; Figure 5 It is a schematic view of the connecting structure of the support rod and the fitting assembly of the present application; Figure 6 Figure 2 is a schematic view of the connection structure between the second support disc and the fixing cylinder of the present application; Figure 7 Figure 3 is a schematic view of the connection structure between the second electric push rod and the third support disc of the present application; Figure 8 Figure 4 is a schematic view of the internal structure of the fixing cylinder of the present application; Figure 9 Figure 5 is a schematic view of the connection structure between the first electric push rod and the connecting cover of the present application; Figure 10 Figure 6 is a schematic view of the overall structure of the fitting assembly of the present application; Figure 11 Figure 7 is a schematic view of the fitting assembly of the present application; Figure 10 Figure 8 is an enlarged schematic view of the structure at point C in figure 7.

[0022] Figure 1: first support disc; 2: swivel ring; 3: support plate; 4: second support disc; 5: fixing cylinder; 6: first electric push rod; 7: elastic cord; 8: connecting cover; 9: third support disc; 10: second electric push rod; 11: movable rod; 12: support assembly; 1201: sliding rod; 1202: first spring; 1203: support block; 13: support rod; 14: fitting assembly; 1401: first connecting plate; 1402: second connecting plate; 1403: linking plate; 1404: first fixed shaft; 1405: torsional spring; 1406: second fixed shaft; 15: fixing sleeve; 16: linking block; 17: extension rod; 18: connecting block; 19: fixed rod; 20: rotating assembly; 2001: damping block; 2002: damping plate; 2003: guide rod; 21: centering assembly; 2101: sliding plate; 2102: connecting disc; 2103: connecting shaft; 2104: adjusting disc; 2105: first through hole; 2106: second through hole; 22: laser; 23: rotating plate; 24: damping shaft; 25: placing groove; 26: top plate; 27: motor. DETAILED DESCRIPTION

[0023] The specific embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are only used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0024] Example 1: As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11As shown, the present embodiment proposes a calibration device for a rotor surface magnetic detection equipment, which comprises a first support disc 1, a rotating ring 2 is rotatably installed on the first support disc 1, a support plate 3 is fixedly connected to the rotating ring 2, a second support disc 4 is fixedly arranged in the middle of the first support disc 1, a fixed cylinder 5 is installed on the second support disc 4, a first electric push rod 6 is installed in the fixed cylinder 5, a connecting cover 8 and a second electric push rod 10 are connected to the first electric push rod 6, a third support disc 9 is fixedly arranged above the second electric push rod 10, an active rod 11 is arranged through the fixed cylinder 5, a support assembly 12 and a support rod 13 are installed on the active rod 11, a fitting assembly 14 is installed on the support assembly 12, the first electric push rod 6 can drive the connecting cover 8 to move downward when it is shortened, the connecting cover 8 will abut against the active rod 11 through the outer wall of the connecting cover 8 when it moves downward, so that the active rod 11 is synchronously expanded outward, so as to place the rotor on the third support disc 9 subsequently, the second electric push rod 10 is used for adjusting the initial height of the third support disc 9 and the rotor, a fixed sleeve 15 is installed on the support rod 13, a link block 16 is welded to the fixed sleeve 15, a connecting block 18 is fixedly arranged on the link block 16, an extension rod 17 is installed in the connecting block 18, a rotating assembly 20 is installed on the connecting block 18, the support plate 3 is driven to rotate through the rotating ring 2, the support plate 3 can act on the rotating assembly 20 when it rotates, so that the extension rod 17 rotates, each extension rod 17 is in an unfolded state after rotating, so as to detect and calibrate the circumferential track when the surface magnetic detection equipment performs circumferential detection subsequently, a centering assembly 21 is installed on the extension rod 17, the centering assembly 21 is used for aligning the central axis of the device, so as to calibrate the position of the rotor and the surface magnetic detection equipment when the centering detection is performed subsequently, so that the device can be switched between the centering detection calibration and the circumferential detection calibration.

[0025] A calibration system for a rotor surface magnetic detection equipment, the calibration system comprises a calibration device for a rotor surface magnetic detection equipment, a motor 27 and a laser 22 arranged above the centering assembly 21, a rotating plate 23 is fixedly arranged on the laser 22, the rotating plate 23 is rotatably installed below a damping shaft 24, a placing groove 25 for placing the rotor surface magnetic detection equipment is arranged on the rotating plate 23, a top plate 26 is rotatably arranged above the damping shaft 24, the output shaft of the motor 27 is connected to the top plate 26, the device can drive the top plate 26 to rotate through the motor 27, so that the rotating plate 23 rotates, so that the device can be calibrated when circumferential detection is performed, when centering detection calibration is performed, the position of the rotor is adjusted in the manner of Figure 1 , until the lasers emitted by all the lasers 22 are aligned with the centering assemblies 21, at this time, the rotating plate 23 can be rotated by 180°, at this time, the central axis of the device as a whole, the central axis of the rotor and the central axis of the surface magnetic detection equipment are all collinear, so that the function of calibration when centering detection is realized.

[0026] Example 2: The scheme in embodiment 1 is further introduced in combination with specific working modes, and details are described below: As shown in Figure 1 , as a preferred embodiment, on the basis of the above mode, further, the first support disc 1, the second support disc 4 and the fixed cylinder 5 are fixedly connected as a whole structure, the central axis of the fixed cylinder 5 is collinear with the central axis of the rotating ring 2, the support plate 3 forms a first rotating structure between the first support disc 1 and the rotating ring 2, and the first rotating structure on the device enables the support plates to be adjusted in angle synchronously, which facilitates subsequent adaptation to rotors of different sizes for cooperation and calibration, and enhances the adaptability of the device.

[0027] As shown in Figure 8 , as a preferred embodiment, on the basis of the above mode, further, the connecting cover 8 is increased in diameter from bottom to top, the movable rods 11 are arranged along the circumference of the connecting cover 8, the side of the movable rods 11 close to the central axis of the connecting cover 8 is in a hemispherical structure, which ensures that the movable rods 11 are pushed outward during the downward movement of the connecting cover 8, and the movable rods 11 enable the device to change the support range after moving outward.

[0028] As shown in Figure 1 and Figure 8 , as a preferred embodiment, on the basis of the above mode, further, the support assembly 12 includes a sliding rod 1201 slidingly installed on the second support disc 4, a first spring 1202 fixedly connected to the sliding rod 1201, a support block 1203 fixedly arranged on the second support disc 4, the first spring 1202 connected to the support block 1203, and the first spring 1202 capable of maintaining the abutting state with the sliding rod 1201, which facilitates subsequent resetting of the sliding rod 1201 and enables the device to stably support the rotor during calibration.

[0029] As shown in Figure 10 and Figure 11 , as a preferred embodiment, on the basis of the above mode, further, the fitting assembly 14 includes a first connecting plate 1401 fixedly connected to the support rod 13, second connecting plates 1402 arranged on both sides of the first connecting plate 1401, a first fixed shaft 1404 fixedly connected to the first connecting plate 1401, a second fixed shaft 1406 fixedly connected to the second connecting plate 1402, an abutment plate 1403 rotatably arranged on the outer side of the second fixed shaft 1406 and the first fixed shaft 1404, a torsional spring 1405 fixedly connected between the abutment plate 1403 and the second fixed shaft 1406 and the first fixed shaft 1404, and the torsional spring 1405 enabling the second connecting plates 1402 on both sides of the first connecting plate 1401 to stably fit the outer side of the rotor, Figure 10 and Figure 11The torsional spring 1405 in the middle is in a stretched state at this time, the second connecting plate 1402 on the left side of the first connecting plate 1401 has a tendency to rotate counterclockwise, and the second connecting plate 1402 on the right side of the first connecting plate 1401 has a tendency to rotate clockwise, so that the plurality of positions of the rotor can be stably supported, facilitating subsequent calibration during centering detection.

[0030] As shown in Figure 1 and Figure 2 , as a preferred embodiment, on the basis of the above mode, further, the connecting block 18 is fixedly connected with a fixed rod 19, the bottom of the fixed rod 19 is connected with the second support disc 4, the extension rod 17 and the connecting block 18 are rotationally connected, each extension rod 17 is of increasing height in the counterclockwise direction, because the heights of each extension rod 17 are different, when the plurality of extension rods 17 are subsequently rotated synchronously, the adjacent two extension rods 17 will not be blocked, ensuring the stability of the device during operation, and facilitating subsequent calibration during centering detection.

[0031] As shown in Figure 1 and Figure 3 , as a preferred embodiment, on the basis of the above mode, further, the rotating assembly 20 comprises a damping block 2001 rotationally installed in the connecting block 18, a damping plate 2002 is arranged on the outer side of the damping block 2001, a guide rod 2003 is fixedly connected on the damping plate 2002, and the guide rod 2003 penetrates the inside of the support plate 3, when the support plate 3 does circular motion, it will drive the guide rod 2003 and the damping plate 2002 to move synchronously, thereby abutting against the damping block 2001, so that the damping block 2001 rotates, facilitating subsequent calibration when detecting the rotor surface magnet in a circular manner.

[0032] As shown in Figure 1 and Figure 3 , as a preferred embodiment, on the basis of the above mode, further, the guide rod 2003 and the support plate 3 are fixedly provided with the elastic cord 7, the elastic cord 7 is symmetrically distributed on both sides of the guide rod 2003, the extension rod 17 constitutes a rotating structure through the damping block 2001 and the damping plate 2002 and the connecting block 18, the elastic cord 7 makes the guide rod 2003 always have a tendency to approach the axis of the device, so that the damping plate 2002 can press the damping block 2001, so as to drive the extension rods 17 at a plurality of positions to rotate synchronously, and the rotor is taken and placed by unfolding the extension rods 17 at a plurality of positions.

[0033] As shown in Figure 1 and Figure 2As shown, as a preferred embodiment, on the basis of the above manner, further, the middle assembly 21 comprises a sliding plate 2101 slidingly mounted in the extension rod 17, the sliding plate 2101 is fixedly connected with a connecting disc 2102, the connecting disc 2102 is fixedly provided with a connecting shaft 2103, the outer side of the connecting shaft 2103 is rotatably connected with an adjusting disc 2104, the adjusting disc 2104 is provided with a second through hole 2106, the middle of the connecting disc 2102 is provided with a first through hole 2105, the second through holes 2106 are uniformly arranged along the circumference of the adjusting disc 2104, the diameters of the second through holes 2106 are different, by sliding the sliding plate 2101, the position of the connecting disc 2102 changes, so that the device maintains Figure 2 the state in the natural state, the alignment accuracy of the device can be adjusted by rotating the adjusting disc 2104 to align the second through hole 2106 with different diameters with the first through hole 2105.

[0034] Embodiment 3: The schemes in Embodiment 1 and Embodiment 2 will be further introduced in combination with specific working modes, which are described in detail below: Specifically, the calibration device and system of the rotor surface magnetic detection equipment in use: as Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11 shown, the fixed rod 19, the first support disc 1 and the second support disc 4 are used to support the whole device, the fixed sleeve 15 and the connecting block 16 on the device are used to connect the support rod 13 and the connecting block 18, when the center detection calibration is carried out, first place the rotor on the third support disc 9, shorten the first electric push rod 6 to drive the connecting cover 8 to move downward, the outer wall of the connecting cover 8 abuts against the movable rod 11, so that each movable rod 11, support rod 13 and the fitting assembly 14 are synchronously expanded outward, at this time the slide rod 1201 slides on the second support disc 4 to the outside of the device, the first spring 1202 on the slide rod 1201 and the support block 1203 is compressed, the first spring 1202 facilitates the subsequent reset of each movable rod 11, support rod 13 and fitting assembly 14, when the space around the third support disc 9 is large enough, place the rotor on the third support disc 9, adjust the initial height of the third support disc 9 and the rotor by the second electric push rod 10. Lengthen the first electric push rod 6 to reset each fitting assembly 14 under the action of the first spring 1202, the second connecting plate 1402 on both sides of the first connecting plate 1401 can stably fit the outer side of the rotor under the action of the torsional spring 1405, Figure 10 and Figure 11The torsion spring 1405 is now in a stretched state. The second connecting plate 1402 on the left side of the first connecting plate 1401 tends to rotate counterclockwise, and the second connecting plate 1402 on the right side of the first connecting plate 1401 tends to rotate clockwise, thereby ensuring that multiple positions of the rotor can be stably supported. Slide the slide plate 2101 within the extension rod 17 and keep the first through holes 2105 on each layer of the connecting plate 2102 aligned (as shown in FIG. Figure 2 As shown in the figure), after alignment, the laser light emitted by the laser 22 can pass through the first through hole 2105 on each layer of the connecting disk 2102 and the second through hole 2106 on the adjusting disk 2104. At this time, the central axis of the entire device, the central axis of the rotor and the central axis of the laser 22 are all aligned. Turn the rotating plate 23 180 degrees to make Figure 1 The triangular mark below the center damping shaft 24 is aligned with the triangular mark on the side of the rotating plate 23 near the placement slot 25. At this point, the central axis of the entire device, the central axis of the rotor, and the central axis of the surface magnetic detection device are all collinear, thus achieving calibration during centering testing. The device can adjust the calibration accuracy by rotating the adjustment disk 2104 outside the connecting shaft 2103 to align the second through hole 2106 of different apertures with the first through hole 2105.

[0035] like Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, when a surround detection is required, reset the device to Figure 1 In the state of the rotor, the top plate 26 is driven to rotate by the motor 27, and the top plate 26 drives the rotating plate 23 to rotate. At this time, the surface magnetic detection device placed in the slot 25 performs a circular motion, allowing the device to be calibrated during the surrounding detection. By changing the angle of the rotating plate 23, the surface magnetic detection device can be calibrated during the detection of different circular motion radii. When the rotor is subsequently taken in and placed, the rotating ring 2 is rotated, and the rotating ring 2 drives the support plate 3 to rotate. When the support plate 3 rotates, it will drive the guide rod 2003 and the damping plate 2002 to move synchronously, thereby abutting the damping block 2001, causing the damping block 2001 to rotate, thereby rotating the extension rod 17. After rotation, each extension rod 17 is in an expanded state. The elastic cord 7 keeps the guide rod 2003 taut at all times, so that the damping plate 2002 can press the damping block 2001, so as to subsequently drive the extension rods 17 in multiple positions to rotate synchronously, and the rotor is taken in and placed by expanding the extension rods 17 in multiple positions.

[0036] The above embodiments are only used for illustrating the present application, but not limiting the present application. Although the present application is explained in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present application do not deviate from the spirit and scope of the present application, and should be covered in the scope of the claims of the present application.

Claims

1. A calibration device for a rotor surface magnetic detection device, comprising a first support disk (1), characterized in that: A rotating ring (2) is rotatably mounted on the first support disk (1), a supporting plate (3) is fixedly connected to the rotating ring (2), a second supporting disk (4) is fixedly arranged in the middle of the first support disk (1), a fixing cylinder (5) is mounted on the second support disk (4), a first electric push rod (6) is mounted in the fixing cylinder (5), a connecting cover (8) and a second electric push rod (10) are connected to the first electric push rod (6), a third supporting disk (9) is fixedly arranged above the second electric push rod (10), and a movable push rod (5) is provided through the fixing cylinder (5). A movable rod (11), wherein a support assembly (12) and a support rod (13) are installed on the movable rod (11), a fitting assembly (14) is installed on the support assembly (12), a fixing sleeve (15) is installed on the support rod (13), a connecting block (16) is welded on the fixing sleeve (15), a connecting block (18) is fixedly provided on the connecting block (16), an extension rod (17) is installed in the connecting block (18), a rotating assembly (20) is installed on the connecting block (18), and a centering assembly (21) is installed on the extension rod (17).

2. The calibration device for rotor surface magnetic detection equipment according to claim 1, characterized in that: The first support disc (1), the second support disc (4) and the fixed cylinder (5) are fixedly connected to form an integral structure; the central axis of the fixed cylinder (5) is collinear with the central axis of the rotating ring (2); and the support plate (3) forms a first rotating structure between the rotating ring (2) and the first support disc (1).

3. The calibration device for rotor surface magnetic detection equipment according to claim 1, characterized in that: The inner and outer diameters of the connecting cover (8) increase from bottom to top, the movable rods (11) are evenly distributed along the circumference of the connecting cover (8), and the side of the movable rods (11) close to the central axis of the connecting cover (8) is a hemispherical structure.

4. The calibration device for rotor surface magnetic detection equipment according to claim 1, characterized in that: The support assembly (12) comprises a slide rod (1201) slidably mounted on a second support plate (4), a first spring (1202) being fixedly connected to the slide rod (1201), a support block (1203) being fixedly provided on the second support plate (4), and the first spring (1202) being connected to the support block (1203).

5. The calibration device for rotor surface magnetic detection equipment according to claim 1, characterized in that: The fitting assembly (14) comprises a first connecting plate (1401) fixedly connected to the support rod (13), second connecting plates (1402) are provided on both sides of the first connecting plate (1401), a first fixed shaft (1404) is fixedly connected to the first connecting plate (1401), a second fixed shaft (1406) is fixedly connected to the second connecting plate (1402), a connecting plate (1403) is rotatably provided on the outer sides of the second fixed shaft (1406) and the first fixed shaft (1404), and a torsion spring (1405) is fixedly connected between the connecting plate (1403), the second fixed shaft (1406) and the first fixed shaft (1404).

6. The calibration device for rotor surface magnetic detection equipment according to claim 1, characterized in that: A fixing rod (19) is fixedly connected to the connecting block (18), and the bottom of the fixing rod (19) is connected to the second support plate (4). The extension rods (17) are rotatably connected to the connecting block (18), and the height of each extension rod (17) increases in a counterclockwise direction.

7. The calibration device for rotor surface magnetism detection equipment according to claim 1, characterized in that: The rotating assembly (20) comprises a damping block (2001) rotatably mounted inside the connecting block (18); a damping plate (2002) is provided on the outer side of the damping block (2001); a guide rod (2003) is fixedly connected to the damping plate (2002); and the guide rod (2003) passes through the interior of the support plate (3).

8. The calibration device for rotor surface magnetic detection equipment according to claim 7, characterized in that: An elastic cord (7) is fixedly arranged between the guide rod (2003) and the support plate (3), and the elastic cord (7) is symmetrically distributed on both sides of the guide rod (2003). The extension rod (17) forms a rotating structure through the damping block (2001) and the damping plate (2002) and the connecting block (18).

9. The calibration device for rotor surface magnetic detection equipment according to claim 6, characterized in that: The centering component (21) includes a slide plate (2101) slidably mounted in the extension rod (17), the slide plate (2101) is fixedly connected to a connecting disk (2102), the connecting disk (2102) is fixedly provided with a connecting shaft (2103), the outer side of the connecting shaft (2103) is rotatably connected to an adjusting disk (2104), the adjusting disk (2104) is provided with a second through hole (2106), the middle of the connecting disk (2102) is provided with a first through hole (2105), the second through holes (2106) are evenly distributed along the circumference of the adjusting disk (2104), and the apertures of the second through holes (2106) are different.

10. A calibration system for rotor surface magnetic detection equipment, characterized in that: The calibration system comprises a calibration device for a rotor surface magnetic detection device as claimed in claim 1, a motor (27) and a laser (22) arranged above a centering component (21), a rotating plate (23) being fixedly arranged on the laser (22), the rotating plate (23) being rotatably mounted below a damping shaft (24), a placement groove (25) for placing the rotor surface magnetic detection device being provided on the rotating plate (23), a top plate (26) being rotatably provided above the damping shaft (24), and an output shaft of the motor (27) being connected to the top plate (26).

Images