Motor stator and rotor air gap detection device

Abstract

The utility model discloses a motor stator and rotor air gap detection device, which belongs to the technical field of motor production equipment and comprises an air pump, a transparent tube is fixedly connected to an air injection port of the air pump, a magnet ring is fixedly connected to the lower end of the transparent tube, and a sealing ring is fixedly connected to the lower portion of the magnet ring. A piston is installed in the transparent pipe in a sliding and sealing mode, and a tension spring is fixedly connected between the transparent pipe and the piston. And a rubber band is sleeved outside the transparent tube. A gap between the magnet ring and the stator is sealed by using the sealing ring, air is injected into the transparent tube by using the air pump, air pressure acts on the lower end of the piston, the piston overcomes the elastic force of the tension spring to rise until the piston is static, then the position of the piston is observed and marked, and the motor to be tested is tested in the same way. Whether the lifting position of the piston is at the standard position is checked, and when the position of the piston is standard, the gap between the rotor and the stator reaches the standard, thereby facilitating the detection of the gap between the rotor and the stator.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor production equipment, and in particular relates to a motor stator and rotor air gap detection device. Background Art

[0002] The gap between the motor rotor and stator needs to be controlled within a certain range. If it is too tight, the friction will be too large, and if it is too loose, the stability will be poor.

[0003] When the gap between the motor rotor and the stator is measured with a ruler, the gap is too small to be observed with the naked eye, and the cost of using high-precision tools for testing is too high, resulting in the problem that conventional motor stator and rotor gap measurement tools are relatively poor in practicality.

[0004] To this end, we propose a motor stator and rotor air gap detection device to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problem that conventional motor stator and rotor gap measurement tools have relatively poor practicability, and proposes a motor stator and rotor air gap detection device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A motor stator and rotor air gap detection device includes an air pump, a transparent tube is fixedly connected to the air injection port of the air pump, a magnet ring is fixedly connected to the lower end of the transparent tube, a sealing ring is fixedly connected to the lower part of the magnet ring, a piston is slidingly and sealingly installed in the transparent tube, and a tension spring is fixedly connected between the transparent tube and the piston. The magnet ring is sleeved on the rotor of a standard motor so that the magnet ring is sucked on the stator of the standard motor, the sealing ring is used to seal the gap between the magnet ring and the stator, and the air pump is used to inject air into the transparent tube so that the air pressure acts on the lower end of the piston, so that the piston overcomes the elastic force of the tension spring and rises until the piston is stationary, and then the position of the piston is observed and then marked, and then the motor to be tested is tested in the same way to check whether the position of the piston rises at the standard position. When the piston position is standard, it means that the gap between the rotor and the stator meets the standard, which is convenient for detecting the gap between the stator and the rotor.

[0008] Preferably, the transparent tube is covered with a rubber band on the outside, so that when a correction test is performed on a standard motor, the rubber band can be used to conveniently mark the test position.

[0009] Preferably, the transparent tube includes a tube body and a guide frame, and the guide frame is fixedly connected to the upper end of the tube body. An air pump is used to inject gas into the lower part of the tube body so that the gas acts on the lower end of the piston, and the guide frame is used to stabilize the upper part of the piston to improve the stability of the piston lifting.

[0010] Preferably, a scale is provided on the outer end of the tube body to facilitate observation and determination of the position of the piston.

[0011] Preferably, the magnet ring comprises a ring body and a buckle block, and the buckle block is evenly fixedly connected to the lower part of the ring body. The buckle block facilitates the buckling of the magnet ring and the sealing ring.

[0012] Preferably, the magnet ring further comprises a positioning block, which is evenly fixedly connected to the inner end of the ring body. The positioning block is used to abut against the target rotor to stabilize the position of the ring body, prevent excessive deviation of the ring body, and facilitate assembly of the magnet ring.

[0013] Preferably, the sealing ring comprises a ring body and a buckle ring, wherein the buckle ring is located at the inner end of the ring body, and the ring body and the buckle ring are an integral structure. The buckle ring facilitates the buckling of the sealing ring with the magnet ring.

[0014] In summary, the technical effects and advantages of the utility model are as follows:

[0015] 1. Put the magnet ring on the rotor of the standard motor so that the magnet ring is sucked on the stator of the standard motor. Use the sealing ring to seal the gap between the magnet ring and the stator. Use the air pump to inject air into the transparent tube so that the air pressure acts on the lower end of the piston, so that the piston overcomes the elastic force of the tension spring and rises until the piston is stationary. Then observe the position of the piston and mark the position. Then test the motor to be tested in the same way to see if the position of the piston rises in the standard position. When the piston position is standard, it means that the gap between the rotor and the stator meets the standard, which is convenient for detecting the gap between the stator and the rotor.

[0016] 2. Use an air pump to inject air into the lower part of the tube so that the gas acts on the lower end of the piston. Use the guide frame to stabilize the upper part of the piston to improve the stability of the piston lifting.

[0017] 3. Use the positioning block to press against the target rotor to stabilize the position of the ring body, prevent excessive deviation of the ring body, and facilitate the assembly of the magnet ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the transparent tube structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the magnet ring structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the sealing ring structure of the utility model.

[0022] In the figure: 1. air pump; 2. transparent tube; 3. magnet ring; 4. sealing ring; 5. rubber band; 6. piston; 7. tension spring; 21. guide frame; 22. tube body; 31. ring body; 32. positioning block; 33. buckle block; 41. ring body; 42. buckle ring. DETAILED DESCRIPTION

[0023] The technical solutions in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, rather than all of the embodiments.

[0024] Reference Figure 1 A motor stator and rotor air gap detection device includes an air pump 1, a transparent tube 2 is fixedly connected to the air injection port of the air pump 1, a magnet ring 3 is fixedly connected to the lower end of the transparent tube 2, a sealing ring 4 is fixedly connected to the lower part of the magnet ring 3, a piston 6 is slidingly sealed installed in the transparent tube 2, and a tension spring 7 is fixedly connected between the transparent tube 2 and the piston 6.

[0025] Reference Figure 1 , the outside of the transparent tube 2 is covered with a rubber band 5. When the correction test is performed on the standard motor, the test position is marked by the rubber band 5.

[0026] Reference Figure 1 and 2 The transparent tube 2 includes a tube body 22 and a guide frame 21. The gas injection nozzle of the air pump 1 is fixedly connected to the lower part of the guide frame 21. The lower end of the tension spring 7 is fixedly connected to the guide frame 21. The upper part of the piston 6 slides through the guide frame 21. The guide frame 21 is fixedly connected to the upper end of the tube body 22. The air pump 1 is used to inject gas into the lower part of the tube body 22, so that the gas acts on the lower end of the piston 6, and the guide frame 21 is used to stabilize the upper part of the piston 6.

[0027] Reference Figure 2 The outer end of the tube body 22 is provided with a scale to assist observation.

[0028] Reference Figure 1 , 2 3, the magnet ring 3 includes a ring body 31 and a buckle block 33, the upper end of the ring body 31 is sealed and fixedly connected to the tube body 22, and the buckle block 33 is evenly and fixedly connected to the lower part of the ring body 31. The sealing ring 4 is buckled on the buckle block 33.

[0029] Reference Figure 1 and 3 The magnet ring 3 also includes a positioning block 32, which is evenly fixedly connected to the inner end of the ring body 31. The positioning block 32 is used to abut against the target rotor to stabilize the position of the ring body 31 and prevent the ring body 31 from excessive deviation.

[0030] Reference Figure 1 , 34, the sealing ring 4 includes a ring body 41 and a buckle 42, the buckle 42 is buckled on the buckle block 33, the ring body 41 is in sealing contact with the ring body 31, the buckle 42 is located at the inner end of the ring body 41, and the ring body 41 and the buckle 42 are an integral structure. The sealing ring 4 is buckled on the lower part of the magnet ring 3 through the buckle 42.

[0031] Working principle: Put the magnet ring 3 on the rotor of the standard motor so that the magnet ring 3 is sucked on the stator of the standard motor, use the sealing ring 4 to seal the gap between the magnet ring 3 and the stator, use the air pump 1 to inject air into the transparent tube 2, so that the air pressure acts on the lower end of the piston 6, so that the piston 6 overcomes the elastic force of the tension spring 7 and rises until the piston 6 is stationary, then observe the position of the piston 6, and then mark the position, and then test the motor to be tested in the same way to check whether the rising position of the piston 6 is at the standard position. When the position of the piston 6 is standard, it means that the gap between the rotor and the stator meets the standard.

[0032] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited to it. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the utility model according to the technical scheme and utility model concept of the utility model, which should be covered by the protection scope of the utility model.

[0033] The description briefly mentions the application direction of the utility model for the prior art that is known to those skilled in the art and has not been changed, and combines it with the utility model to form a complete technology; the description avoids over-popularizing the technology familiar to those skilled in the art, and is used to assist those skilled in the art to quickly understand the main content of the utility model.

Claims

1. A motor stator and rotor air gap detection device, comprising an air pump (1), Features: A transparent tube (2) is fixedly connected to the gas injection port of the air pump (1); a magnet ring (3) is fixedly connected to the lower end of the transparent tube (2); a sealing ring (4) is fixedly connected to the lower part of the magnet ring (3); a piston (6) is slidingly sealed installed inside the transparent tube (2); and a tension spring (7) is fixedly connected between the transparent tube (2) and the piston (6).

2. A motor stator and rotor air gap detection device according to claim 1, Features: The transparent tube (2) is covered with a rubber band (5) on its exterior.

3. The motor stator and rotor air gap detection device according to claim 1, Features: The transparent tube (2) comprises a tube body (22) and a guide frame (21), and the guide frame (21) is fixedly connected to the upper end of the tube body (22).

4. A motor stator and rotor air gap detection device according to claim 3, Features: The outer end of the tube body (22) is provided with a scale.

5. The motor stator and rotor air gap detection device according to claim 1, Features: The magnet ring (3) comprises a ring body (31) and a buckle block (33), wherein the buckle block (33) is evenly and fixedly connected to the lower part of the ring body (31).

6. A motor stator and rotor air gap detection device according to claim 5, Features: The magnet ring (3) further comprises a positioning block (32), wherein the positioning block (32) is evenly and fixedly connected to the inner end of the ring body (31).

7. The motor stator and rotor air gap detection device according to claim 1, Features: The sealing ring (4) comprises a ring body (41) and a buckle ring (42); the buckle ring (42) is located at the inner end of the ring body (41); and the ring body (41) and the buckle ring (42) are an integral structure.

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