Magnetic force coupling device magnetic gap test tool and use method thereof

Abstract

The invention discloses a magnetic force coupling device magnetic gap testing tool, which comprises a driving device, an inner magnetic disk device, an outer magnetic disk device, a gap adjusting device, a position adjusting mechanism and a bolt adjusting device, and is characterized in that the driving device is provided with a torque sensor, the inner magnetic disk device is provided with a rotating shaft, and the rotating shaft is provided with an inner magnet disk; the rotating shaft is connected with the driving device, the outer magnetic disk device is arranged in the axial extending direction of the inner magnetic disk device and provided with a servo motor, an output shaft of the servo motor is connected with a first outer magnetic ring of an annular structure, and the gap adjusting devices are installed on the first outer magnetic ring in the circumferential direction. The gap adjusting device comprises an adjusting bolt and a magnet base. The magnetic gap of the magnetic coupling device can be simply adjusted, the magnetic gap and the numerical value of the corresponding torque can be conveniently measured, and the measurement mode is simple to operate. The invention further provides a using method of the magnetic force coupling device magnetic gap testing tool.

Description

Technical Field

[0001] The present invention belongs to the field of transmission equipment test tooling, and particularly relates to a magnetic gap test tooling for a magnetic coupling device and a using method thereof. Background Art

[0002] Magnetic coupling technology is widely used in fields such as industrial automation, robotics, and medical equipment. For example, in rotating equipment such as pumps and mixers, magnetic couplings can effectively isolate the leakage problem between the motor and the pump body, improving the reliability and safety of the equipment. A magnetic coupler, also known as a magnetic coupling or a permanent magnet drive device, mainly consists of three parts: a copper rotor, a permanent magnet rotor, and a controller. By adjusting the air gap (i.e., the magnetic gap) between the copper rotor and the permanent magnet rotor, changes in the torque and speed of the working machine shaft can be achieved. The size of the magnetic gap has an important influence on the performance of magnetic coupling. Too small a gap may cause friction and wear between the magnets, while too large a gap may lead to a decrease in transmission efficiency and stability. In the design and application of magnetic couplings, the size and shape of the magnetic gap need to be carefully considered to ensure the normal operation and stable performance of the equipment. Currently, the existing measurement of magnetic gaps usually uses precision measuring tools such as micrometers or magnetic field strength meters, and the measurement method has relatively high operation requirements. Therefore, in order to avoid the disadvantages existing in the prior art, it is necessary to improve the prior art. Summary of the Invention

[0003] The purpose of the present invention is to provide a magnetic gap test tooling for a magnetic coupling device, which can easily adjust the magnetic gap of the magnetic coupling device, facilitate the measurement of the magnetic gap and the corresponding torque value, and has a simple operation method. The present invention also provides a using method of the magnetic gap test tooling for the magnetic coupling device.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0005] A magnetic gap testing tooling for a magnetic coupling device, comprising a driving device, an inner disk device, an outer disk device, a gap adjusting device, a position adjusting mechanism and a bolt adjusting device. A torque sensor is arranged on the driving device. A rotating shaft is arranged on the inner disk device. An inner magnet disk is installed on the rotating shaft. The rotating shaft is connected to the driving device. The outer disk device is arranged in the axial extension direction of the inner disk device. A servo motor is arranged on the outer disk device. The output shaft of the servo motor is connected with a first outer magnetic ring in a ring structure. A plurality of the gap adjusting devices are installed on the first outer magnetic ring along the circumferential direction. The gap adjusting device comprises an adjusting bolt and a magnet seat. The adjusting bolt penetrates the first outer magnetic ring along the radial direction and is in threaded connection with the first outer magnetic ring. The magnet seat is connected to the end of the adjusting bolt on the inner side of the first outer magnetic ring. A plurality of the magnet seats are arranged in a circular ring to form a second outer magnetic ring. The second outer magnetic ring surrounds the outer circumference of the inner magnet disk and is coaxial with the inner magnet disk. The position adjusting mechanism can adjust the installation position of the outer disk device. The bolt adjusting device comprises an electric wrench and a lifting device capable of driving the electric wrench to move up and down. The electric wrench is arranged above the first outer magnetic ring and is aligned with the adjusting bolt. A distance sensor for measuring the distance from the end face of the first outer magnetic ring to the end face of the adjusting bolt is also arranged on the electric wrench.

[0006] As a preferred scheme of the above magnetic gap testing tooling for the magnetic coupling device, a first magnet is installed inside the inner magnet disk. The inner magnet disk is provided with a first through hole along the circumferential direction. The end face of the first magnet protrudes from the edge of the first through hole. A second magnet is installed inside the magnet seat. The magnet seat is provided with a second through hole. The end face of the second magnet protrudes from the edge of the second through hole.

[0007] As a preferred scheme of the above magnetic gap testing tooling for the magnetic coupling device, the position adjusting mechanism comprises an axial adjusting device and a radial adjusting device. The axial adjusting device is arranged between the inner disk device and the outer disk device. The axial adjusting device abuts against the outer disk device. The radial adjusting device is arranged on the side of the outer disk device. The radial adjusting device abuts against the outer disk device. A first gasket is arranged at the bottom of the inner disk device. A second gasket is arranged at the bottom of the outer disk device.

[0008] As a preferred solution of the magnetic gap testing tooling for the above magnetic coupling device, the radial adjustment device includes a bolt top block, a first bolt and a bolt bottom block. The bolt top block is fixedly installed on the frame of the magnetic gap testing tooling for the magnetic coupling device. The first bolt passes through the bolt top block and is connected to the bolt bottom block. A bolt bearing is arranged at one end of the bolt bottom block close to the outer disk device, and the bolt bearing abuts against the side surface of the outer disk device.

[0009] As a preferred solution of the magnetic gap testing tooling for the above magnetic coupling device, the outer disk device is provided with a plurality of strip-shaped hole grooves along the radial direction, and the magnet seat is slidably arranged in the strip-shaped hole grooves.

[0010] As a preferred solution of the magnetic gap testing tooling for the above magnetic coupling device, a spring is sleeved on the cylindrical section of the adjusting bolt. One end of the spring abuts against the head of the adjusting bolt, and the other end of the spring abuts against the circumferential side surface of the first outer magnetic ring. A through hole is arranged on the magnet seat, and the adjusting bolt penetrates through the through hole and a circlip retainer is hoop-mounted at one end passing through the through hole.

[0011] As a preferred solution of the magnetic gap testing tooling for the above magnetic coupling device, a magnet gland is arranged on the side surface of the magnet seat.

[0012] As a preferred solution of the magnetic gap testing tooling for the above magnetic coupling device, the magnet seat is provided with an I-shaped limiting structure, and the limiting structure is slidably arranged in the strip-shaped hole grooves.

[0013] The present invention also provides a using method of the magnetic gap testing tooling for the magnetic coupling device. Using the magnetic gap testing tooling for the magnetic coupling device as described above to test the magnetic coupling device, the method includes the following steps:

[0014] Step 1, adjust the installation position of the outer disk device through the position adjustment mechanism, so that the second outer magnetic ring is arranged on the circumferential outer side of the inner magnet disk, and ensure that the inner end surface of the magnet seat is arranged opposite to the circumferential side surface of the inner magnet disk;

[0015] Step 2, adjust the adjusting bolt to make the inner end surface of the magnet seat fit with the circumferential side surface of the inner magnet disk, and measure the initial distance a0 from the end surface of the first outer magnetic ring to the end surface of the adjusting bolt through the distance sensor;

[0016] Step 3, start the lifting device to make the electric wrench screw the adjusting bolt to adjust the gap between the magnet seat and the inner magnet disk, that is, adjust the gap between the second outer magnetic ring and the inner magnet disk. Measure the distance a1 from the end surface of the first outer magnetic ring to the end surface of the adjusting bolt through the distance sensor, and calculate to obtain Δd1 = a1 - a0;

[0017] Step 4: Start the servo motor of the outer disk device, rotate it by a certain angle to align the next adjusting bolt with the electric wrench, and repeat Step 3 until the gap adjustment between each magnet seat and the inner magnet disk is completed;

[0018] Step 5: Start the driving device to drive the inner magnet disk to rotate, and measure the torque magnitude T1 corresponding to the current magnetic gap Δd1 through the torque sensor provided on the driving device;

[0019] Step 6: Repeat Steps 2 to 5 to obtain at least 10 groups of different magnetic gaps Δd n and the corresponding torque magnitudes T n ;

[0020] Step 7: Through fitting and analyzing the above measurement data, the optimal magnetic gap of the magnetic coupling device can be obtained.

[0021] Implementing a magnetic gap test tooling for a magnetic coupling device provided by the present invention, compared with the prior art, its beneficial effects are as follows:

[0022] A torque sensor is installed on the driving device of the present invention. The inner magnet disk on the inner disk device is connected to the driving device through a rotating shaft for transmission. After the driving device is started, under the transmission of the rotating shaft, the inner magnet disk is driven to rotate, and the torque sensor can measure the torque value corresponding to the current magnetic gap. A gap adjustment device is installed on the first outer magnetic ring of the outer disk device. The magnet seats of the gap adjustment device are arranged in a circular ring along the circumferential direction of the outer circumference of the inner magnet disk to form a second outer magnetic ring. By adjusting the position of each magnet seat with an adjusting bolt, the distance between the second outer magnetic ring and the inner magnet disk can be adjusted, that is, the magnetic gap between the second outer magnetic ring and the inner magnet disk can be adjusted. By adjusting the magnetic gap, the torque size corresponding to the current magnetic gap measured by the torque sensor can be changed. The magnetic gap is adjusted multiple times to measure the torque sizes corresponding to different magnetic gaps, and the optimal magnetic gap of the magnetic coupling device is fitted, avoiding friction and wear between magnets caused by too small magnetic gap, and also avoiding reduction of transmission efficiency and decline of stability caused by too large magnetic gap. A servo motor is also provided on the outer disk device. Through the rotation of the servo motor and the electric wrench arranged above the first outer magnetic ring, each adjusting bolt on each gap adjustment device is screwed one by one, automatically completing the adjustment of each gap adjustment device, and it can ensure that the distances of each adjusting bolt screwed and adjusted are consistent to ensure accurate torque reading. A distance sensor is arranged on the electric wrench, which can measure the distance from the end face of the first outer magnetic ring to the end face of the adjusting bolt, so as to calculate the magnetic gap by subtracting the initial distance from the end face of the first outer magnetic ring to the end face of the adjusting bolt when the magnet seat is in contact with the inner magnet disk. The position adjustment mechanism adjusts the installation position of the outer disk device to ensure that the second outer magnetic ring is arranged on the circumferential outer side of the inner magnet disk and to ensure the coaxiality of the second outer magnetic ring and the inner magnet disk. The magnetic gap testing tooling of the magnetic coupling device of the present invention can automatically adjust the magnetic gap, measure the torque values under different magnetic gaps, so as to obtain the optimal magnetic gap of different magnetic coupling devices, and the measurement method is simple to operate and has high accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0024] Figure 1 It is a schematic diagram of the magnetic gap testing tooling of the magnetic coupling device of the present invention;

[0025] Figure 2 It is a schematic diagram of the driving device of the present invention;

[0026] Figure 3 It is a schematic diagram of the inner disk device of the present invention;

[0027] Figure 4 It is a schematic diagram of the outer disk device of the present invention;

[0028] Figure 5 isFigure 4 Partial enlarged schematic view at the first outer magnetic ring;

[0029] Figure 6 Schematic diagram of the gap adjustment device of the present invention;

[0030] Figure 7 Cross-sectional schematic view of the cooperation between the gap adjustment device of the present invention and the first outer magnetic ring;

[0031] Figure 8 Schematic diagram of the bolt adjustment device of the present invention;

[0032] Figure 9 Schematic diagram of the radial adjustment device of the present invention.

[0033] Markings in the figure:

[0034] 100, drive device; 110, torque sensor; 200, inner disk device; 210, rotating shaft; 220, inner magnet disk; 221, first magnet; 222, first through hole; 230, first gasket; 300, outer disk device; 310, servo motor; 320, first outer magnetic ring; 330, second outer magnetic ring; 340, gap adjustment device; 341, adjustment bolt; 342, spring; 343, magnet seat; 344, magnet gland; 345, second through hole; 346, snap ring; 347, limiting structure; 348, second magnet; 350, strip-shaped hole groove; 360, second gasket; 400, position adjustment mechanism; 410, radial adjustment device; 411, bolt top block; 412, first bolt; 413, bolt bottom block; 414, bolt bearing; 420, axial adjustment device; 500, bolt adjustment device; 510, lifting device; 520, electric wrench; 530, distance sensor. Specific embodiments

[0035] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0037] In the description of the present invention, "a number of" means one or more, "a plurality of" means more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the corresponding number, while understandings such as "above", "below", "within", etc. include the corresponding number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly defined, words such as "arrangement", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0039] Please refer to Figures 1 to 9 simultaneously, and now a magnetic gap test tooling for the magnetic coupling device provided by the embodiment of the present invention will be described.

[0040] As Figures 1 to 9 shown, the magnetic gap test tooling of the magnetic coupling device of the present invention includes a driving device 100, an inner disk device 200, an outer disk device 300, a gap adjusting device 340, a position adjusting mechanism 400, and a bolt adjusting device 500. A torque sensor 110 is arranged on the driving device 100. A rotating shaft 210 is arranged on the inner disk device 200. An inner magnet disk 220 is installed on the rotating shaft 210. The rotating shaft 210 is connected to the driving device 100. The outer disk device 300 is arranged in the axial extension direction of the inner disk device 200. The outer disk device 300 is provided with a servo motor 310. The output shaft of the servo motor 310 is connected to a first outer magnetic ring 320 in a ring structure. A number of the gap adjusting devices 340 are installed circumferentially on the first outer magnetic ring 320. The gap adjusting device 340 includes an adjusting bolt 341 and a magnet seat 343. The adjusting bolt 341 penetrates the first outer magnetic ring 320 radially and is threadedly connected to the first outer magnetic ring 320. The magnet seat 343 is connected to the end of the adjusting bolt 341 on the inner side of the first outer magnetic ring 320. A number of the magnet seats 343 are arranged in a circular ring to form a second outer magnetic ring 330. The second outer magnetic ring 330 surrounds the outer circumference of the inner magnet disk 220 and is coaxial with the inner magnet disk 220. The position adjusting mechanism 400 can adjust the installation position of the outer disk device 300. The bolt adjusting device 500 includes an electric wrench 520 and a lifting device 510 capable of driving the electric wrench 520 to move up and down. The electric wrench 520 is arranged above the first outer magnetic ring 320 and is aligned with the adjusting bolt 341. A distance sensor 530 for measuring the distance from the end face of the first outer magnetic ring 320 to the end face of the adjusting bolt 341 is also arranged on the electric wrench 520.

[0041] Specifically, each time the servo motor 310 rotates by a certain angle, the adjusting bolt on the next adjacent gap adjusting device 340 is aligned with the electric wrench 520. In this way, the electric wrench 520 only needs to move up and down and turn the adjusting bolt, without adjusting the position of the electric wrench 520. By turning the adjusting bolt with the electric wrench 520, the magnetic gap between the magnet seat 343 connected to each adjusting bolt and the inner magnet disk 220 is kept consistent, ensuring the stability and accuracy of the torque reading.

[0042] Exemplarily, a first magnet 221 is installed inside the inner magnet disk 220. The inner magnet disk 220 is provided with a first through hole 222 along the circumferential direction, and the end face of the first magnet 221 protrudes beyond the edge of the first through hole 222; a second magnet 348 is installed inside the magnet seat 343. The magnet seat 343 is provided with a second through hole 345, and the end face of the second magnet 348 protrudes beyond the edge of the second through hole 345. The end face of the first magnet 221 protrudes beyond the edge of the first through hole 222, and the end face of the second magnet 348 protrudes beyond the edge of the second through hole 345, so that the first magnet 221 and the second magnet 348 can be directly in surface contact and fit together. Thus, the initial distance from the end face of the first outer magnetic ring 320 to the end face of the adjusting bolt 341 can be measured, which is convenient for subtracting the initial distance after turning the adjusting bolt 341 to obtain the magnetic gap between the first magnet 221 and the second magnet 348.

[0043] It should be noted that if the first magnet 221 and the second magnet 348 do not respectively protrude beyond the edges of the first through hole 222 and the second through hole 345, the first magnet 221 and the second magnet 348 cannot be directly in surface contact and fit together. In this way, after each adjustment of the magnetic gap, it is necessary to directly measure the distance between the first magnet 221 and the second magnet 348 to obtain the specific magnetic gap, which is troublesome to operate and difficult to accurately measure in a narrow space.

[0044] Exemplarily, the position adjustment mechanism 400 includes an axial adjustment device 420 and a radial adjustment device 410. The axial adjustment device 420 is disposed between the inner disk device 200 and the outer disk device 300. The axial adjustment device 420 abuts against the outer disk device 300. The radial adjustment device 410 is disposed on the side surface of the outer disk device 300. The radial adjustment device 410 abuts against the outer disk device 300. A first gasket 230 is disposed at the bottom of the inner disk device 200, and a second gasket 360 is disposed at the bottom of the outer disk device 300. The first gasket 230 and the second gasket 360 are respectively used to adjust the vertical heights of the inner disk device 200 and the outer disk device 300. Cooperating with the radial adjustment device 410 to adjust the position of the outer disk device 300 can ensure that the second outer magnetic ring 330 on the outer disk device 300 is coaxially installed with the inner magnet disk 220 of the inner disk device 200, ensuring the coaxiality. The axial adjustment device 420 is used to adjust the axial distance between the outer disk device 300 and the inner disk device 200, ensuring that the second outer magnetic ring 330 is disposed on the circumferential outer side of the inner magnet disk 220. At the same time, it also ensures that the inner end surface of each magnet seat 343 is opposite to the circumferential outer side surface of the inner magnet disk 220, so as to ensure that the measured torque value is more accurate.

[0045] Exemplarily, the radial adjustment device 410 includes a bolt top block 411, a first bolt 412 and a bolt bottom block 413. The bolt top block 411 is fixedly installed on the frame of the magnetic coupling device magnetic gap testing tooling. The first bolt 412 passes through the bolt top block 411 and is connected to the bolt bottom block 413. A bolt bearing 414 is disposed at one end of the bolt bottom block 413 close to the outer disk device 300. The bolt bearing 414 abuts against the side surface of the outer disk device 300. By abutting the bolt bearing 414 against the side surface of the outer disk device 300, when the outer disk device 300 moves axially, the bolt bearing 414 rolls to avoid scratching the side surface of the outer disk device 300. By adjusting the distance that the first bolt 412 is screwed into the bolt top block 411, the bolt bearing 414 on the bolt bottom block 413 pushes the outer disk device 300 to move radially, facilitating the adjustment of the position of the outer disk device 300.

[0046] Exemplarily, a plurality of strip-shaped holes 350 extending in the radial direction are provided on the outer disk device 300, and the magnet seat is slidably disposed in the strip-shaped holes 350. The magnet seat can slide along the strip-shaped holes 350. When the adjusting bolt 341 is turned to adjust the position of the magnet seat 343, the magnet seat 343 can move radially along the outer disk device 300 under the guiding action of the strip-shaped holes 350, thereby adjusting the magnetic gap between the magnet seat 343 and the inner magnet disk 220, that is, adjusting the magnetic gap between the first magnet 221 and the second magnet 348. The guiding action of the strip-shaped holes 350 can ensure that the magnet seat 343 does not shift when adjusting the position.

[0047] Exemplarily, a spring 342 is sleeved on the cylindrical section of the adjusting bolt. One end of the spring 342 abuts against the head of the adjusting bolt, and the other end of the spring 342 abuts against the circumferential side surface of the first outer magnetic ring 320. A through hole is provided on the magnet seat 343, and the adjusting bolt passes through the through hole and a circlip retainer 346 is sleeved on the end passing through the through hole. One end of the spring 342 abuts against the head of the adjusting bolt, and the other end of the spring 342 abuts against the circumferential side surface of the first outer magnetic ring 320 to lock the position of the bolt through the elastic force, and the tightening and loosening control of the adjusting bolt is realized by using the elasticity of the spring 342. Specifically, when the adjusting bolt is screwed into the screw hole, the spring 342 will be compressed. During this process, a force in the opposite direction is generated to keep the adjusting bolt at a predetermined position, achieving the effect of locking the position of the adjusting bolt and avoiding the change of the magnetic force gap caused by the loosening of the adjusting bolt, which affects the measurement of the torque value.

[0048] Since the magnet seat 343 is connected to the adjusting bolt 341 and the position is adjusted through the adjusting bolt 341, the adjusting bolt 341 will rotate when it is turned. In order to prevent the magnet seat 343 from rotating with the adjusting bolt 341, the magnet seat 343 cannot be fixedly connected to the adjusting bolt 341. Otherwise, the magnet seat 343 will rotate together with the adjusting bolt 341 when the adjusting bolt 341 is turned. The axial displacement of the adjusting bolt 341 is restricted by the circlip retainer 346, and the adjusting bolt 341 can be turned without driving the magnet seat 343 to rotate together.

[0049] Exemplarily, a magnet retainer 344 is provided on the side surface of the magnet seat 343 to fix the second magnet 348 in the magnet seat 343, preventing the second magnet 348 from shifting or coming out of the magnet seat 343.

[0050] Exemplarily, the magnet base 343 is provided with an I-shaped limiting structure 347, and the limiting structure 347 is slidably arranged in the strip-shaped hole groove 350. The I-shaped limiting structure 347 plays a limiting role. When the adjusting bolt is turned to adjust the position of the magnet base 343, it ensures that the magnet base 343 moves along the strip-shaped hole groove 350 without deviation or derailment. It should be noted that the magnet base 343 is affected by the magnetic force of the inner magnet disk 220, so it is prone to deviation. The cooperation of the I-shaped limiting structure 347 and the strip-shaped hole groove 350 not only plays a guiding role to make the magnet base 343 move along the strip-shaped hole groove 350, but also plays a limiting role to prevent the magnet base 343 from derailing or deviating under the action of magnetic force.

[0051] The present invention also provides a method for using a magnetic gap testing tooling of a magnetic coupling device, which uses the magnetic gap testing tooling of the magnetic coupling device as described above to test the magnetic coupling device, including the following steps:

[0052] Step 1, adjust the installation position of the outer disk device 300 through the position adjustment mechanism 400, so that the second outer magnetic ring 330 is arranged on the circumferential outer side of the inner magnet disk 220, and ensure that the inner end surface of the magnet base 343 is oppositely arranged with the circumferential side surface of the inner magnet disk 220;

[0053] Step 2, adjust the adjusting bolt so that the inner end surface of the magnet base 343 is in contact with the circumferential side surface of the inner magnet disk 220, and measure the initial distance a0 from the end surface of the first outer magnetic ring 320 to the end surface of the adjusting bolt 341 through the distance sensor 530;

[0054] Step 3, start the lifting device 510 to make the electric wrench 520 turn the adjusting bolt to adjust the gap between the magnet base 343 and the inner magnet disk 220, that is, adjust the gap between the second outer magnetic ring 330 and the inner magnet disk 220. Measure the distance a1 from the end surface of the first outer magnetic ring 320 to the end surface of the adjusting bolt 341 through the distance sensor 530, and calculate Δd1 = a1 - a0;

[0055] Step 4, start the servo motor 310 of the outer disk device 300 to rotate a certain angle to align the next adjusting bolt with the electric wrench 520, and repeat Step 3 until the gap adjustment between each magnet base 343 and the inner magnet disk 220 is completed;

[0056] Step 5, start the driving device 100 to drive the inner magnet disk 220 to rotate, and measure the torque magnitude T1 corresponding to the current magnetic gap Δd1 through the torque sensor 110 arranged on the driving device 100;

[0057] Step 6: Repeat Step 2 to Step 5 to obtain at least 10 sets of different magnetic gaps Δd n and the corresponding torque magnitudes T n ;

[0058] Step 7: By fitting and analyzing the above measurement data, the optimal magnetic gap of the magnetic coupling device can be obtained.

[0059] By measuring the magnitudes of the corresponding torques at different magnetic gaps, the relationship curve between the magnetic gap and the torque is fitted, so as to obtain the optimal magnetic gap of the magnetic coupling device, avoiding the friction and wear between magnets caused by too small a magnetic gap, and also avoiding the reduction of transmission efficiency and the decline of stability caused by too large a magnetic gap.

[0060] Implementing a test tool for the magnetic gap of a magnetic coupling device provided by the present invention, compared with the prior art, its beneficial effects are as follows:

[0061] A torque sensor 110 is installed on the driving device 100 of the present invention. The inner magnet disk 220 on the inner disk device 200 is connected to the driving device 100 through a rotating shaft 210 for transmission. After the driving device 100 is started, the inner magnet disk 220 is driven to rotate under the transmission of the rotating shaft 210, and the torque sensor 110 can measure the torque value corresponding to the current magnetic gap. A gap adjusting device 340 is installed on the first outer magnetic ring 320 of the outer disk device 300. The magnet seats 343 of the gap adjusting device 340 are arranged in a circular ring along the circumferential direction on the outer periphery of the inner magnet disk to form a second outer magnetic ring 330. By adjusting the position of each magnet seat 343 with an adjusting bolt, the distance between the second outer magnetic ring 330 and the inner magnet disk 220 can be adjusted, that is, the magnetic gap between the second outer magnetic ring 330 and the inner magnet disk 220 can be adjusted. By adjusting the magnetic gap, the torque magnitude corresponding to the current magnetic gap measured by the torque sensor 110 can be changed. The magnetic gap is adjusted multiple times to measure the torque magnitudes corresponding to different magnetic gaps, and the optimal magnetic gap of the magnetic coupling device is fitted, avoiding friction and wear between magnets caused by too small a magnetic gap, and also avoiding a decrease in transmission efficiency and stability caused by too large a magnetic gap. A servo motor 310 is also provided on the outer disk device 300. By rotating the servo motor 310 and cooperating with an electric wrench 520 arranged above the first outer magnetic ring 320, the adjusting bolts 341 on each gap adjusting device 340 are screwed one by one to automatically complete the adjustment of each gap adjusting device 340, and it can be ensured that the distances of each adjusting bolt 341 screwed and adjusted are kept consistent to ensure accurate torque readings. A distance sensor 530 is provided on the electric wrench 520, which can measure the distance from the end face of the first outer magnetic ring 320 to the end face of the adjusting bolt 341, so as to calculate the magnetic gap by subtracting the initial distance from the end face of the first outer magnetic ring 320 to the end face of the adjusting bolt 341 when the magnet seat 343 is in contact with the inner magnet disk 220. The position adjusting mechanism 400 adjusts the installation position of the outer disk device 300 to ensure that the second outer magnetic ring 330 is arranged on the circumferential outer side of the inner magnet disk 220 and to ensure the coaxiality of the second outer magnetic ring 330 and the inner magnet disk 220. The magnetic gap testing tooling of the magnetic coupling device of the present invention can automatically adjust the magnetic gap, measure the torque values under different magnetic gaps, thereby obtaining the optimal magnetic gap of different magnetic coupling devices, and the measurement method is simple to operate and has high accuracy.

[0062] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A magnetic gap test tooling for a magnetic coupling device, characterized in that Comprising: A driving device, on which a torque sensor is provided; An inner disk device, on which a rotating shaft is provided, an inner magnet disk is mounted on the rotating shaft, and the rotating shaft is connected to the driving device; An outer disk device, which is arranged in the axial extension direction of the inner disk device, the outer disk device is provided with a servo motor, and an output shaft of the servo motor is connected with a first outer magnetic ring in a ring structure; A gap adjusting device, several of the gap adjusting devices are installed on the first outer magnetic ring in the circumferential direction, the gap adjusting device includes an adjusting bolt and a magnet seat, the adjusting bolt penetrates through the first outer magnetic ring in the radial direction and is threadedly connected with the first outer magnetic ring, the magnet seat is connected to the end of the adjusting bolt on the inner side of the first outer magnetic ring, and several of the magnet seats are arranged in a circular ring to form a second outer magnetic ring, the second outer magnetic ring surrounds the outer circumference of the inner magnet disk and is coaxial with the inner magnet disk; A position adjusting mechanism, which can adjust the installation position of the outer disk device; A bolt adjusting device, the bolt adjusting device includes an electric wrench and a lifting device capable of driving the electric wrench to move up and down, the electric wrench is arranged above the first outer magnetic ring and is aligned with the adjusting bolt, and a distance sensor for measuring the distance from the end face of the first outer magnetic ring to the end face of the adjusting bolt is also provided on the electric wrench.

2. The magnetic gap testing tooling for the magnetic coupling device according to claim 1, characterized in that, A first magnet is installed inside the inner magnet disk, the inner magnet disk is provided with a first through hole in the circumferential direction, and the end face of the first magnet protrudes from the edge of the first through hole; a second magnet is installed inside the magnet seat, the magnet seat is provided with a second through hole, and the end face of the second magnet protrudes from the edge of the second through hole.

3. The magnetic gap testing tooling for the magnetic coupling device according to claim 2, characterized in that, The position adjusting mechanism includes an axial adjusting device and a radial adjusting device, the axial adjusting device is arranged between the inner disk device and the outer disk device, and the axial adjusting device abuts against the outer disk device; The radial adjusting device is arranged on the side of the outer disk device, and the radial adjusting device abuts against the outer disk device; A first gasket is provided at the bottom of the inner disk device, and a second gasket is provided at the bottom of the outer disk device.

4. The magnetic gap test tooling for the magnetic coupling device according to claim 3, wherein The radial adjusting device includes a bolt top block, a first bolt and a bolt bottom block, the bolt top block is fixedly installed on the frame of the magnetic coupling device magnetic gap testing tooling, the first bolt passes through the bolt top block and is connected to the bolt bottom block, and a bolt bearing is provided at one end of the bolt bottom block close to the outer disk device, and the bolt bearing abuts against the side of the outer disk device.

5. The magnetic gap testing tooling for the magnetic coupling device according to any one of claims 1 to 4, characterized in that, The outer disk device is provided with several strip-shaped hole grooves along the radial direction, and the magnet seat is slidably arranged in the strip-shaped hole grooves.

6. The magnetic gap test tooling for the magnetic coupling device according to claim 5, characterized in that, A spring is sleeved on the cylindrical section of the adjusting bolt, one end of the spring abuts against the head of the adjusting bolt, the other end of the spring abuts against the circumferential side of the first outer magnetic ring, a through hole is provided on the magnet seat, the adjusting bolt penetrates through the through hole and a circlip retaining ring is sleeved on the end of the adjusting bolt passing through the through hole.

7. The magnetic gap test tooling for the magnetic coupling device according to claim 5, characterized in that A magnet cover is provided on the side surface of the magnet seat.

8. The magnetic gap test tooling for the magnetic coupling device according to claim 5, characterized in that The magnet seat is provided with an I-shaped limiting structure, and the limiting structure is slidably arranged in the strip-shaped hole groove.

9. A method for using a magnetic gap test tooling of a magnetic coupling device, characterized in that, Using the magnetic gap test tooling for the magnetic coupling device according to any one of claims 1 to 8 to test the magnetic coupling device, comprising the following steps: Step 1, adjust the installation position of the outer disk device through the position adjustment mechanism, so that the second outer magnetic ring is arranged on the circumferential outer side of the inner magnet disk, and ensure that the inner end surface of the magnet seat is oppositely arranged with the circumferential side surface of the inner magnet disk; Step 2, adjust the adjusting bolt to make the inner end surface of the magnet seat fit with the circumferential side surface of the inner magnet disk, and measure the initial distance a0 from the end surface of the first outer magnetic ring to the end surface of the adjusting bolt through the distance sensor; Step 3, start the lifting device to make the electric wrench screw the adjusting bolt so as to adjust the gap between the magnet seat and the inner magnet disk, that is, adjust the gap between the second outer magnetic ring and the inner magnet disk, measure the distance a1 from the end surface of the first outer magnetic ring to the end surface of the adjusting bolt through the distance sensor, and calculate to obtain Δd1 = a1 - a0; Step 4, start the servo motor of the outer disk device, rotate a certain angle to make the next adjusting bolt align with the electric wrench, and repeat Step 3 until the gap between each magnet seat and the inner magnet disk is adjusted; Step 5, start the driving device to drive the inner magnet disk to rotate, and measure the torque magnitude T1 corresponding to the current magnetic gap Δd1 through the torque sensor arranged on the driving device; Step 6: Repeat Steps 2 to 5 to obtain at least 10 sets of different magnetic gaps Δd n and the corresponding torque magnitudes T n ; Step 7, through fitting and analyzing the above measurement data, the optimal magnetic gap of the magnetic coupling device can be obtained.

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