Composite type motor stator and rotor air gap checking ruler

Abstract

The utility model relates to the technical field of motors, and discloses a composite motor stator and rotor air gap checking ruler, which comprises a stator and rotor air gap checking mechanism, the stator and rotor air gap checking mechanism comprises a handheld part and a telescopic rod structure arranged on one side of the handheld part, and one end, far away from the handheld part, of the telescopic rod structure is connected with a universal joint. The other end of the universal joint is connected with the inspection ruler body, a connecting rod at one end of the universal joint is inserted into the connecting sleeve, the universal joint and the telescopic rod structure can be assembled through matching of the threaded hole A and the threads, in the same way, the inspection ruler body and the universal joint can be assembled, and then a worker holds the holding part with a hand. The checking ruler body can be used for checking the air gap between the stator and the rotor, the checking ruler body is divided into a plurality of specifications such as 0-10 filaments, 10-20 filaments and 20-30 filaments according to the size of the motor, the measuring precision can be greatly improved, the length of the telescopic rod structure and the direction of the rotating universal joint can be adjusted, the checking of the air gap between the stator and the rotor of the motor becomes easier, and data are more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a composite motor stator-rotor air gap inspection ruler. Background Technique

[0002] A motor is a device that converts electrical energy into mechanical energy and is widely used in various industrial and daily devices. The air gap between the motor stator and rotor is one of the important parameters in the motor performance parameters. A suitable air gap can avoid excessive friction, reduce noise and heat. During inspection, it is usually necessary to measure at different positions and ensure that the air gap is uniform. When inspecting and repairing motors, especially some vertical motors with large power such as circulating water pumps, the problem of inspecting the stator-rotor air gap without disassembling the motor often occurs.

[0003] For example, for the measuring tool and measuring ruler for the air gap of the motor stator and rotor with the publication number CN206387361U, the measuring ruler includes: a rod part; a measuring part provided at one end of the rod part, the height of the measuring part gradually increases from one end of the measuring part along the direction close to the rod part, and the measuring part further includes a bottom part and a measuring indication part, and the measuring indication part is arranged on the bottom part along the height direction. The measuring tool and measuring ruler for the air gap of the motor stator and rotor of the utility model can measure the air gap of the motor stator and rotor, and the measurement is simple and convenient and has a high measurement accuracy.

[0004] The above patent proposes that the air gap of the motor stator and rotor can be measured by using a measuring ruler. However, during the use of the motor stator-rotor air gap inspection ruler, due to the current measurement method of stacking ordinary feeler gauges together, limited by the motor structure and the size of the feeler gauges, it is easy to cause the problem that the air gap of the motor stator and rotor in all directions is uneven and the bearing force is unbalanced, making the measurement work very difficult.

[0005] Therefore, we propose a composite motor stator-rotor air gap inspection ruler to facilitate the solution of the above-mentioned problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a composite motor stator-rotor air gap inspection ruler to solve the problem that the measurement work becomes very difficult due to the current measurement method of stacking ordinary feeler gauges together and being limited by the motor structure and the size of the feeler gauges as proposed in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solution: a composite motor stator-rotor air gap inspection ruler, including a stator-rotor air gap inspection mechanism. The stator-rotor air gap inspection mechanism includes a handheld part for holding and a telescopic rod structure arranged on one side of the handheld part for telescoping. One end of the telescopic rod structure away from the handheld part is connected to a universal joint, which can rotate. The other end of the universal joint is connected to an inspection ruler body for inspecting the air gap of the motor stator and rotor. Hold the handheld part, and the air gap of the stator and rotor can be inspected by using the inspection ruler body. Moreover, the length of the telescopic rod structure can be adjusted, and the direction of the universal joint can be rotated, making the inspection of the air gap of the motor stator and rotor easier.

[0008] Preferably, the telescopic rod structure includes a fixed rod and multiple groups of movable rods slidably connected inside the fixed rod. The top end of the innermost group of movable rods is connected to a connecting sleeve, and a threaded hole A is provided on the surface of the connecting sleeve.

[0009] Preferably, the inspection ruler body is in the shape of a sword. The inspection ruler body is divided into multiple specifications such as 0-10 silk, 10-20 silk, 20-30 silk, etc. according to the size of the motor, which can greatly improve the measurement accuracy. A threaded hole B is provided on the bottom wall of the inspection ruler body.

[0010] Preferably, connecting rods are respectively arranged at both ends of the universal joint. Threads are provided on the outer sides of both ends of the connecting rods, which can be threadedly engaged with the threaded hole B and the threaded hole A respectively, so as to realize the assembly between the telescopic rod structure, the universal joint and the inspection ruler body.

[0011] Preferably, the handheld part includes a handheld cylinder sleeved outside the fixed rod and anti-slip lines evenly arranged on the outer wall of the handheld cylinder. A rubber pad is arranged inside the handheld cylinder, and a lanyard is arranged at the lower end of the handheld cylinder. When the staff holds the handheld cylinder, the lanyard can be sleeved on the wrist.

[0012] Preferably, the lanyard is a component made of an elastic material and can be stretched.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By setting the telescopic rod structure, the universal joint and the inspection ruler body, the telescopic rod structure is connected to the universal joint by threads, and then the universal joint is connected to the inspection ruler body, so that assembly can be realized. Then, the length of the telescopic rod structure can be adjusted, and the direction of the universal joint can be rotated, making the inspection of the air gap of the motor stator and rotor easier and the data more accurate. The traditional feeler gauge is improved, making the originally difficult measurement work simple and easy to perform.

[0015] 2. By means of the provided handheld part, the anti-slip pattern can increase the friction between the staff's hand and the handheld cylinder, and the extendable lanyard can be put around the staff's wrist, thereby enhancing the connection between the staff's hand and the handheld cylinder and preventing it from dropping out of the hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic three-dimensional overall structure diagram of the present utility model;

[0017] Figure 2 is a schematic three-dimensional structure diagram of the telescopic rod structure of the present utility model;

[0018] Figure 3 is a schematic three-dimensional structure diagram of the handheld part of the present utility model;

[0019] Figure 4 is a schematic three-dimensional structure diagram of the inspection ruler body of the present utility model.

[0020] In the figure: 1. Stator-rotor air gap inspection mechanism; 11. Handheld part; 111. Handheld cylinder; 112. Anti-slip pattern; 113. Lanyard; 114. Rubber pad; 12. Telescopic rod structure; 121. Fixed rod; 122. Movable rod; 123. Connecting sleeve; 124. Threaded hole A; 13. Universal joint; 131. Connecting rod; 14. Inspection ruler body; 141. Threaded hole B. SPECIFIC EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1: Please refer to Figure 1 , Figure 2 and Figure 4, A composite motor stator-rotor air gap inspection ruler, which includes a stator-rotor air gap inspection mechanism 1. The stator-rotor air gap inspection mechanism 1 includes a handheld part 11 for holding and a telescopic rod structure 12 arranged on one side of the handheld part 11 for telescoping. One end of the telescopic rod structure 12 away from the handheld part 11 is connected to a universal joint 13, the universal joint 13 can rotate, and the other end of the universal joint 13 is connected to an inspection ruler body 14 for inspecting the stator-rotor air gap of the motor. Hold the handheld part 11, and the stator-rotor air gap can be inspected by using the inspection ruler body 14, and the length of the telescopic rod structure 12 can be adjusted, and the direction of the universal joint 13 can be rotated, making the inspection of the stator-rotor air gap of the motor easier and the data more accurate. It improves the traditional feeler gauge and makes the originally difficult measurement work simple and easy to perform (the telescopic rod structure is a structure that can extend and contract and is a prior art).

[0023] The telescopic rod structure 12 includes a fixed rod 121 and multiple groups of movable rods 122 slidably connected inside the fixed rod 121. The top of the innermost group of the movable rods 122 is connected to a connecting sleeve 123, and a threaded hole A124 is opened on the surface of the connecting sleeve 123.

[0024] The inspection ruler body 14 is in the shape of a sword. The inspection ruler body 14 is divided into multiple specifications such as 0-10 silk, 10-20 silk, 20-30 silk, etc. according to the size of the motor, which can greatly improve the measurement accuracy. A threaded hole B141 is opened on the bottom wall of the inspection ruler body 14.

[0025] Both ends of the universal joint 13 are respectively provided with connecting rods 131. Threads are provided on the outer sides of both ends of the connecting rods 131, and they can be respectively in threaded cooperation with the threaded hole B141 and the threaded hole A124, so as to realize the assembly between the telescopic rod structure 12, the universal joint 13 and the inspection ruler body 14.

[0026] In this embodiment: Insert the connecting rod 131 at one end of the universal joint 13 into the connecting sleeve 123, and through the threaded hole A124 and threaded cooperation, the assembly between the universal joint 13 and the telescopic rod structure 12 can be completed. Similarly, the inspection ruler body 14 can be assembled with the universal joint 13. Then the staff holds the handheld part 11, and the stator-rotor air gap can be inspected by using the inspection ruler body 14. The inspection ruler body 14 is in the shape of a sword. The inspection ruler body 14 is divided into multiple specifications such as 0-10 silk, 10-20 silk, 20-30 silk, etc. according to the size of the motor, which can greatly improve the measurement accuracy, and the length of the telescopic rod structure 12 can be adjusted, and the direction of the universal joint 13 can be rotated, making the inspection of the stator-rotor air gap of the motor easier and the data more accurate. It improves the traditional feeler gauge and makes the originally difficult measurement work simple and easy to perform, and is convenient to use.

[0027] Embodiment 2: This embodiment is an improvement made on the basis of Embodiment 1. Specifically, please refer toFigure 3 The handheld part 11 includes a handheld cylinder 111 sleeved outside the fixed rod 121 and anti-slip lines 112 evenly arranged on the outer wall of the handheld cylinder 111. A rubber pad 114 is arranged inside the handheld cylinder 111. The fixed rod 121 can be inserted into the handheld cylinder 111, and the friction between the two can be increased by using the rubber pad 114. A lanyard 113 is arranged at the lower end of the handheld cylinder 111. When the staff holds the handheld cylinder 111, the lanyard 113 can be put on the wrist.

[0028] The lanyard 113 is a component made of an elastic material and can be stretched to adapt to the wrist of the staff.

[0029] In this embodiment: When in use, the fixed rod 121 can be inserted into the handheld cylinder 111, and the friction between the two can be increased by using the rubber pad 114, so that the handheld cylinder 111 can be placed outside the fixed rod 121 for use. When the staff holds the handheld cylinder 111, anti-slip is achieved by using the anti-slip lines 112, and the lanyard 113 can be stretched, so that it can be put on the wrist, thereby increasing the connection between the staff and the stator-rotor air gap inspection mechanism 1 and avoiding dropping from the hand.

[0030] Working principle: Insert the connecting rod 131 at one end of the universal joint 13 into the connecting sleeve 123. Through the threaded hole A124 and threaded fit, the assembly of the universal joint 13 and the telescopic rod structure 12 can be completed. Similarly, the inspection ruler body 14 can be assembled with the universal joint 13. Then the staff holds the handheld part 11, and the stator-rotor air gap can be inspected by using the inspection ruler body 14. The inspection ruler body 14 is in the shape of a sword. The inspection ruler body 14 is divided into multiple specifications such as 0-10 wires, 10-20 wires, 20-30 wires, etc. according to the size of the motor, and the length of the telescopic rod structure 12 can be adjusted, and the direction of the universal joint 13 can be rotated, making the inspection of the stator-rotor air gap of the motor easier. The fixed rod 121 can be inserted into the handheld cylinder 111, and the friction between the two can be increased by using the rubber pad 114, so that the handheld cylinder 111 can be placed outside the fixed rod 121 for use. When the staff holds the handheld cylinder 111, anti-slip is achieved by using the anti-slip lines 112, and the lanyard 113 can be stretched, so that it can be put on the wrist.

[0031] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A composite motor stator-rotor air gap inspection ruler, comprising a stator-rotor air gap inspection mechanism (1), characterized in that: The stator-rotor air gap inspection mechanism (1) includes a handheld part (11) for holding by hand and a telescopic rod structure (12) arranged on one side of the handheld part (11). One end of the telescopic rod structure (12) far from the handheld part (11) is connected with a universal joint (13), the universal joint (13) can rotate, and the other end of the universal joint (13) is connected with an inspection ruler body (14) for inspecting the air gap of the motor stator and rotor. Hold the handheld part (11) by hand, and the air gap of the stator and rotor can be inspected by using the inspection ruler body (14).

2. The composite motor stator-rotor air gap inspection ruler according to claim 1, characterized in that: The telescopic rod structure (12) includes a fixed rod (121) and multiple groups of movable rods (122) slidably connected inside the fixed rod (121). The top of the innermost group of the movable rods (122) is connected with a connecting sleeve (123), and a threaded hole A (124) is formed on the surface of the connecting sleeve (123).

3. A composite motor stator-rotor air gap inspection ruler according to claim 2, characterized in that: The inspection ruler body (14) is in the shape of a sword, and a threaded hole B (141) is formed on the bottom wall of the inspection ruler body (14).

4. A composite motor stator-rotor air gap inspection ruler according to claim 3, characterized in that: Both ends of the universal joint (13) are respectively provided with connecting rods (131), and threads are arranged on the outer sides of both ends of the connecting rods (131), which can be in threaded cooperation with the threaded hole B (141) and the threaded hole A (124) respectively.

5. A composite motor stator-rotor air gap inspection ruler according to claim 4, characterized in that: The handheld part (11) includes a handheld cylinder (111) sleeved outside the fixed rod (121) and anti-slip lines (112) uniformly formed on the outer wall of the handheld cylinder (111). A rubber pad (114) is arranged inside the handheld cylinder (111), and a lanyard (113) is arranged at the lower end of the handheld cylinder (111).

6. A composite motor stator-rotor air gap inspection ruler according to claim 5, characterized in that: The lanyard (113) is a component made of an elastic material and can be stretched.

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