Permanent magnet motor convenient to disassemble, assemble and maintain

Abstract

The utility model provides a permanent magnet motor convenient to disassemble, assemble and maintain, which relates to the technical field of permanent magnet motors and comprises a shell, a base is fixedly mounted at the bottom of the shell, and a group of threaded holes I are formed in the outer surface wall of the shell. According to the utility model, the stability of the motor during working is ensured through the base, vibration and noise caused by improper installation are reduced, the screws simultaneously penetrate through the threaded holes I and the threaded holes II to fix the shell and the front end cover, the screw connection mode is relatively simple, and the motor can be assembled, repaired and maintained conveniently and quickly during the assembly, repair and maintenance process of the motor. According to the motor, the front end cover and the shell can be rapidly separated or combined, time and labor cost are saved, when parts in the motor need to be replaced, the front end cover can be easily opened for operation by unscrewing the screws, and the internal structure of the shell can be more rapidly and visually observed for maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of permanent magnet motors, in particular to a permanent magnet motor which is convenient for disassembly, assembly and maintenance. Background Art

[0002] A permanent magnet motor is a synchronous motor that uses permanent magnets to establish an excitation magnetic field. Its stator windings usually adopt a three-phase symmetrical star connection. The rotor is made of permanent magnet material. Permanent magnet motors can be divided into various types, including permanent magnet synchronous motors, permanent magnet DC motors, permanent magnet stepping motors, etc. Among them, permanent magnet synchronous motors and permanent magnet brushless DC motors are the two most widely used types.

[0003] When maintaining the existing permanent magnet motors, disassembly is required. However, most of the current outer shells of permanent magnet motors are integrated. When disassembly and inspection are needed for maintenance, it is very difficult for maintenance personnel to disassemble and inspect the outer shell of the permanent magnet motor, which requires more time for disassembly and assembly, reducing work efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that when the above-mentioned equipment is in use, since most of the existing permanent magnet motors are disassembled and assembled manually for maintenance, a large amount of labor is consumed, and a permanent magnet motor which is convenient for disassembly, assembly and maintenance is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a permanent magnet motor which is convenient for disassembly, assembly and maintenance, including an outer shell, a machine base is fixedly installed at the bottom of the outer shell, a group of first threaded holes are opened on the outer surface wall of the outer shell, a front end cover is arranged on one side of the outer wall of the outer shell, a group of connecting plates are fixedly installed on the outer surface wall of the front end cover, a second threaded hole is opened on the outer surface wall of the group of connecting plates, and a screw is threadedly connected to the inner surface wall of the group of second threaded holes.

[0006] Preferably, a hole is opened on one side of the outer wall of the front end cover, a stator is arranged on the inner surface wall of the outer shell, and a rotor is arranged on the inner surface wall of the stator.

[0007] Preferably, a rotating shaft is arranged on the inner surface wall of the rotor, and the outer surface wall of the rotating shaft is movably inserted into the inner surface wall of the hole, and two bearings are fixedly sleeved on the outer surface wall of the rotating shaft.

[0008] Preferably, a junction box is arranged on the outer surface wall of the outer shell, and a cooling fan is fixedly sleeved on the outer surface wall of the rotating shaft.

[0009] Preferably, a group of clamping grooves are opened on the outer surface wall of the outer shell, a group of square grooves are opened on the outer surface wall of the outer shell, and a rear end cover is arranged on the outer surface wall of the outer shell.

[0010] Preferably, a clamping block is fixedly installed on the outer surface wall of the rear end cover, and the outer surface wall of the group of clamping blocks is movably embedded in the inner surface wall of the clamping grooves.

[0011] Preferably, a set of fixing plates are fixedly installed on the outer surface wall of the rear end cover, and the outer surface walls of the set of fixing plates are movably inserted into the inner surface walls of a set of square grooves.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] 1. In the present utility model, the base ensures the stability of the motor during operation, reduces vibration and noise caused by improper installation. Secondly, the screws pass through the first threaded hole and the second threaded hole at the same time to fix the outer shell and the front end cover. The screw connection method is relatively simple. During the assembly, repair and maintenance of the motor, the front end cover and the outer shell can be quickly separated or combined, saving time and labor costs. When it is necessary to replace the components inside the motor, the front end cover can be easily opened by loosening the screws for operation, and the internal structure of the outer shell can be observed more quickly and intuitively for maintenance.

[0014] 2. In the present utility model, the outer shell and the rear end cover are fixed by inserting the fixing plates into the square grooves and embedding the clamping blocks into the clamping grooves at the same time. There is no need to use tools for complex operations, which can achieve rapid assembly, improve production efficiency, ensure accurate alignment of the rear end cover and the outer shell during installation, reduce installation errors, the connection structure is relatively simple, is not prone to failure, and is also convenient for later maintenance and inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the three-dimensional front view structure diagram of a permanent magnet motor for easy disassembly, maintenance and repair proposed by the present utility model;

[0016] Figure 2 is the exploded three-dimensional front view structure diagram of a permanent magnet motor for easy disassembly, maintenance and repair proposed by the present utility model;

[0017] Figure 3 is the exploded schematic front view structure diagram of a permanent magnet motor for easy disassembly, maintenance and repair proposed by the present utility model;

[0018] Figure 4 is the exploded three-dimensional front view structure diagram of a permanent magnet motor for easy disassembly, maintenance and repair proposed by the present utility model.

[0019] Legend:

[0020] 1. Outer shell; 2. Base; 3. First threaded hole; 4. Front end cover; 5. Connecting plate; 6. Second threaded hole; 7. Screw; 8. Hole; 9. Stator; 10. Rotor; 11. Rotating shaft; 12. Bearing; 13. Junction box; 14. Cooling fan; 15. Clamping groove; 16. Square groove; 17. Rear end cover; 18. Clamping block; 19. Fixing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described below in conjunction with the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0022] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited to the limitations of the specific embodiments disclosed in the following specification.

[0023] As Figures 1-4 shown, the present utility model provides a permanent magnet motor that is convenient for disassembly, assembly and maintenance, including a housing 1. A machine base 2 is fixedly installed at the bottom of the housing 1. A set of first threaded holes 3 are opened on the outer surface wall of the housing 1. A front end cover 4 is arranged on one side of the outer wall of the housing 1. A set of connecting plates 5 are fixedly installed on the outer surface wall of the front end cover 4. A second threaded hole 6 is opened on the outer surface wall of the set of connecting plates 5. A screw 7 is threadedly connected to the inner surface wall of the set of second threaded holes 6. A hole 8 is opened on one side of the outer wall of the front end cover 4. A stator 9 is arranged on the inner surface wall of the housing 1. A rotor 10 is arranged on the inner surface wall of the stator 9. A rotating shaft 11 is arranged on the inner surface wall of the rotor 10, and the outer surface of the rotating shaft 11 is movably inserted into the inner surface wall of the hole 8. Two bearings 12 are fixedly sleeved on the outer surface of the rotating shaft 11. A junction box 13 is arranged on the outer surface wall of the housing 1. A cooling fan 14 is fixedly sleeved on the outer surface of the rotating shaft 11.

[0024] First, by attaching the housing 1 to the front end cover 4, the first threaded holes 3 are aligned with the second threaded holes 6. Secondly, by simultaneously rotating the screws 7 into the first threaded holes 3 and the second threaded holes 6, the housing 1 and the front end cover 4 are connected and fixed. The screws 7 can provide strong fastening force to ensure close fit between the front end cover 4 and the housing 1, effectively preventing the motor from loosening or displacing during operation, ensuring the normal operation of the motor, and at the same time facilitating the disassembly of the front end cover 4 during maintenance, facilitating direct inspection and maintenance of the internal structure.

[0025] A set of card slots 15 are opened on the outer surface wall of the housing 1. A set of square slots 16 are opened on the outer surface wall of the housing 1. A rear end cover 17 is arranged on the outer surface wall of the housing 1. A set of clamping blocks 18 are fixedly installed on the outer surface wall of the rear end cover 17, and the outer surface walls of the set of clamping blocks 18 are movably embedded in the inner surface walls of the card slots 15. A set of fixing plates 19 are fixedly installed on the outer surface wall of the rear end cover 17, and the outer surface walls of the set of fixing plates 19 are movably inserted into the inner surface walls of the set of square slots 16.

[0026] By aligning the fixed plate 19 with the square groove 16 and moving it inward in the direction of the square groove 16, the fixed plate 19 enters the interior of the square groove 16. At the same time, the clamping block 18 can be embedded inside the clamping groove 15 to connect and fix the housing 1 and the rear end cover 17. Also, when disassembly is required, the clamping block 18 can be pulled upward to disassemble it, enabling direct inspection of the components inside the cooling fan 14, such as whether the blades, motor shafts, etc. are worn, damaged, or loose, and performing repairs or replacements in a timely manner.

[0027] Among them, the stator 9 and the rotor 10 are both prior arts, and their components and operating principles are all publicly known technologies, so no further explanation will be given here.

[0028] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A permanent magnet motor that is easy to disassemble and maintain, characterized in that: The invention comprises a shell (1), a base (2) is fixedly mounted on the bottom of the shell (1), a group of threaded holes (3) are opened on the outer wall of the shell (1), a front end cover (4) is arranged on one side of the outer wall of the shell (1), a group of connecting plates (5) are fixedly mounted on the outer wall of the front end cover (4), a group of threaded holes (6) are opened on the outer wall of the connecting plates (5), and a group of screws (7) are threadedly connected to the inner wall of the threaded holes (6).

2. A permanent magnet motor that is easy to disassemble and maintain according to claim 1, characterized in that: A hole (8) is provided on one side of the outer wall of the front end cover (4), a stator (9) is provided on the inner surface wall of the outer shell (1), and a rotor (10) is provided on the inner surface wall of the stator (9).

3. A permanent magnet motor that is easy to disassemble and maintain according to claim 2, characterized in that: A rotating shaft (11) is disposed on the inner surface wall of the rotor (10), and the outer surface wall of the rotating shaft (11) is movably inserted into the inner surface wall of the hole (8), and two bearings (12) are fixedly sleeved on the outer surface wall of the rotating shaft (11).

4. A permanent magnet motor that is easy to disassemble and maintain according to claim 3, characterized in that: A junction box (13) is provided on the outer wall of the housing (1), and a cooling fan (14) is fixedly provided on the outer wall of the rotating shaft (11).

5. A permanent magnet motor that is easy to disassemble and maintain according to claim 4, characterized in that: The outer wall of the shell (1) is provided with a group of slots (15), the outer wall of the shell (1) is provided with a group of square slots (16), and the outer wall of the shell (1) is provided with a rear end cover (17).

6. A permanent magnet motor that is easy to disassemble and maintain according to claim 5, characterized in that: A clamping block (18) is fixedly mounted on the outer wall of the rear end cover (17), and the outer walls of a group of clamping blocks (18) are movably embedded in the inner wall of the clamping slot (15).

7. A permanent magnet motor that is easy to disassemble and maintain according to claim 6, characterized in that: A set of fixing plates (19) are fixedly mounted on the outer surface wall of the rear end cover (17), and the outer surface walls of the set of fixing plates (19) are movably inserted into the inner surface walls of the set of square grooves (16).

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