CN215420032U - High-speed permanent magnet motor stator and rotor convenient to disassemble and assemble - Google Patents

Abstract

The utility model discloses a high-speed permanent magnet motor stator and rotor convenient to disassemble and assemble, which comprises a machine base, wherein the top end of the machine base is fixedly provided with a machine shell, one end of the machine shell is in threaded connection with a front end cover, the other end of the machine shell is in threaded connection with a rear end cover, one side of the interior of the machine shell is in bolted connection with a first bearing seat, the other side of the interior of the machine shell is in bolted connection with a second bearing seat, one side of the rear end cover is fixedly provided with a third bearing, the interior of the machine shell is provided with a rotor, two ends of the rotor are fixedly provided with rotating shafts, the rotating shafts penetrate through the first bearing, the front end cover and the second bearing, the rotating shafts are fixedly connected with the third bearing, and the inner wall of the machine shell is embedded with a plurality of stators. The utility model has the beneficial effects that: this high-speed permanent-magnet machine stator-rotor front end housing and rear end cap convenient to dismouting all can directly be dismantled, lift off the bolt after can directly take out first bearing frame and second bearing frame from both ends, accomplish the dismantlement to whole motor, it is very convenient.

Description

High-speed permanent magnet motor stator and rotor convenient to disassemble and assemble

Technical Field

The utility model relates to the technical field of permanent magnet motors, in particular to a stator and a rotor of a high-speed permanent magnet motor, which are convenient to disassemble and assemble.

Background

With the development of motor control technology, the alternating current asynchronous motor has the characteristics of simple structure, reliable work, long service life, low cost and simple and convenient maintenance and is widely applied. However, it has poor speed regulation performance, small starting torque, and low overload capability and efficiency compared with a direct current motor. The generation of the rotating magnetic field needs to absorb reactive power from the power grid, so the power factor is low, particularly when the rotating magnetic field is lightly loaded, the loss of lines and the power grid is greatly increased, and for a long time, people research and use permanent magnets to replace electrically excited magnetic poles, use integrated circuits and computer technologies to control permanent magnet synchronous motors, and the development and application of permanent magnet materials, integrated circuits and computer technologies greatly promote the development and application of the permanent magnet synchronous motors. Compared with a direct current motor and an asynchronous motor, the permanent magnet synchronous motor has the characteristics of hard mechanical performance, large overload capacity, good controllability, good stability, low noise, low electromagnetic interference, long service life, small volume, high efficiency and high cost. In the routine maintenance and repair process, the stator and the rotor of the motor need to be taken out of the motor, but the existing permanent magnet synchronous motor is inconvenient to disassemble, so that the repair process is complicated, and the repair efficiency is not high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a stator and a rotor of a high-speed permanent magnet motor, which are convenient to disassemble and assemble, so as to solve the problem that the permanent magnet synchronous motor in the current market is inconvenient to disassemble and causes a complex maintenance process.

In order to achieve the purpose, the utility model provides the following technical scheme: a high-speed permanent magnet motor stator and rotor convenient to disassemble and assemble comprises a base, wherein a casing is fixedly arranged at the top end of the base, a front end cover is connected to one end of the casing through threads, a rear end cover is connected to the other end of the casing through threads, a first bearing seat is fixedly arranged on one side, close to the front end cover, of the interior of the casing, is connected with a bolt of the casing, a first bearing is embedded in the middle of the first bearing seat, a second bearing seat is installed on one side, close to the rear end cover, of the interior of the casing, is connected with the bolt of the casing, a second bearing is embedded in the middle of the second bearing seat, a third bearing is fixedly installed in the middle of one side, located in the interior of the casing, of the rear end cover, a rotor is arranged in the interior of the casing, rotating shafts are fixedly installed at two ends of the rotor, the rotating shaft at the front end of the rotor penetrates through the first bearing and the front end cover, and the rotating shaft at the tail end of the rotor penetrates through the second bearing, rotor end pivot and third bearing fixed connection, the casing inner wall is inlayed and is installed a plurality of stator.

In order to enable the permanent magnet synchronous motor to realize the switching rotation in the positive and negative directions in the working process, the utility model is taken as a preferred scheme that: and a commutator is fixedly arranged at the top end of the rotor.

Preferably, in order to enable the temperature of the permanent magnet synchronous motor to be in a controllable range during operation, the utility model is a preferable scheme that: and a cooling fan is fixedly arranged at one end of the rotating shaft close to the rear end cover.

In order to enable the permanent magnet synchronous motor to have a good heat dissipation effect, the utility model discloses a preferable scheme that: and the rear end cover is provided with a plurality of heat dissipation holes.

In order to keep the interior of the permanent magnet synchronous motor clean, the utility model adopts a preferable scheme that: the inside cover of rear end cap is equipped with the filter screen, rear end cap and filter screen bolted connection.

Compared with the prior art, the utility model has the beneficial effects that:

1) according to the high-speed permanent magnet motor stator and rotor convenient to disassemble and assemble, the front end cover and the rear end cover are in threaded connection with the shell, two ends of the stator and rotor can be directly disassembled, the first bearing seat and the second bearing seat are in bolted connection with the shell, the bearing seats can be directly taken out from the two ends after the bolts are disassembled, the whole motor is conveniently disassembled and assembled;

2) this high-speed permanent-magnet machine stator-rotor convenient to dismouting is equipped with the filter screen, can prevent effectively through the filter screen that is equipped with that too much dust from adsorbing in the pivot, avoids inside the dust enters into the motor, reduces the influence that causes the motor.

3) This high-speed permanent-magnet machine stator-rotor convenient to dismouting is equipped with the commutator, can make the motor can realize positive and negative direction and rotate through the commutator that is equipped with, has increased the practicality of motor.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a rotor structure according to the present invention;

fig. 3 is a schematic view of a heat dissipation fan according to the present invention.

In the figure: 1. a machine base; 2. a housing; 3. a front end cover; 4. a rear end cap; 5. a first bearing housing; 6. a first bearing; 7. a second bearing housing; 8. a second bearing; 9. a third bearing; 10. a rotor; 11. a rotating shaft; 12. a stator; 13. a commutator; 14. a heat radiation fan; 15. and (4) heat dissipation holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a high-speed permanent magnet motor stator and rotor convenient to disassemble and assemble comprises a machine base 1, wherein a machine shell 2 is fixedly installed at the top end of the machine base 1, one end of the machine shell 2 is in threaded connection with a front end cover 3, the other end of the machine shell 2 is in threaded connection with a rear end cover 4, a first bearing 5 is fixedly installed on one side, close to the front end cover 3, in the machine shell 2, the first bearing 5 is in bolted connection with the machine shell 2, a first bearing 6 is embedded in the middle of the first bearing 5, a second bearing 7 is installed on one side, close to the rear end cover 4, in the machine shell 2, the second bearing 7 is in bolted connection with the machine shell 2, a second bearing 8 is embedded in the middle of the second bearing 7, a third bearing 9 is fixedly installed in the middle of one side, close to the machine shell 2, a rotor 10 is arranged in the machine shell 2, rotating shafts 11 are fixedly installed at two ends of the rotor 10, and the rotating shaft 11 at the front end of the rotor 10 penetrates through the first bearing 6 and the front end cover 3, the terminal pivot 11 of rotor 10 runs through second bearing 8, and rotor 10 terminal pivot 11 and third bearing 9 fixed connection, 2 inner walls of casing inlay and install a plurality of stator 12.

Further, a commutator 13 is fixedly mounted at the top end of the rotor 10, and the permanent magnet synchronous motor can change the rotation direction of the motor during operation through the commutator 13, so that the forward and reverse rotation of the motor is realized, and the practicability of the motor is improved.

Furthermore, a heat dissipation fan 14 is fixedly installed at one end, close to the rear end cover 4, of the rotating shaft 11, the permanent magnet synchronous motor can generate heat energy during working to enable the temperature to rise, and the rotating speed of the motor can be prevented from being influenced by the overhigh temperature rise through the installed heat dissipation fan 14.

Furthermore, a plurality of heat dissipation holes 15 are formed in the rear end cover 4, the heat dissipation holes 15 are matched with the heat dissipation fan 14 to discharge hot air generated by the motor, and therefore the temperature of the motor rising due to high-speed operation is effectively reduced, and the motor can work normally.

Further, the inside cover of rear end housing 4 is equipped with the filter screen, and rear end housing 4 and filter screen bolted connection, PMSM can attract a lot of dusts because the rotational speed is too fast at the during operation usually, and these dusts can influence the availability factor of motor, can prevent through the filter screen that is equipped with that the dust gets into inside the motor for the motor does not receive the influence of dust.

The working principle is as follows: when the high-speed permanent magnet motor stator and rotor convenient to disassemble and assemble are used, when the novel high-speed permanent magnet motor stator and rotor are required to be disassembled, a worker firstly unscrews the front end cover 3 and the rear end cover 4 which are in threaded connection with the two ends of the casing 2, then takes down the buckle for fixing the cooling fan 14, takes the cooling fan 14 out of the rear end cover 4, secondly takes down the bolts for fixing the first bearing seat 5 and the second bearing seat 7 on the outer wall of the casing 2, then detaches the second bearing seat 7 from the rear end cover 4, takes the first bearing seat 5 out of the front end cover 3, and finally takes out the rotor 10 together with the rotating shaft 11 to complete the disassembly of the permanent magnet synchronous motor;

when this novel high-speed permanent-magnet machine stator-rotor of installation, at first inlay stator 12 at 2 inner walls of casing, then alternate second bearing 7 with the one end of pivot 11, put into casing 2 with second bearing 7 and rotor 10 simultaneously inside, fix second bearing 7 through the bolt, after that wear to insert first bearing 5 with the 11 other ends of pivot, first bearing 5 pushes into the inside suitable position of casing 2, use the bolt fastening, then put into casing 2 with pivot 11 fixed connection from rear end cap 4 with radiator fan 14, at last with front end housing 3 and rear end housing 4 and 2 threaded connection of casing, accomplish the installation to permanent-magnet machine.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes, modifications, equivalents, and improvements may be made without departing from the spirit and scope of the utility model.

Claims (5)

1. The utility model provides a high-speed permanent-magnet machine stator-rotor convenient to dismouting, includes frame (1), its characterized in that: the improved motor shell is characterized in that a machine shell (2) is fixedly mounted on the top end of the machine base (1), one end of the machine shell (2) is in threaded connection with a front end cover (3), the other end of the machine shell (2) is in threaded connection with a rear end cover (4), a first bearing seat (5) is fixedly mounted on one side, close to the front end cover (3), of the machine shell (2), the first bearing seat (5) is in bolted connection with the machine shell (2), a first bearing (6) is mounted in the middle of the first bearing seat (5), a second bearing seat (7) is mounted on one side, close to the rear end cover (4), of the machine shell (2), the second bearing seat (7) is in bolted connection with the machine shell (2), a second bearing (8) is mounted in the middle of the second bearing seat (7), and a third bearing (9) is fixedly mounted on the middle of one side, close to the interior of the machine shell (2), of the rear end cover (4), casing (2) inside is equipped with rotor (10), the equal fixed mounting in rotor (10) both ends has pivot (11), rotor (10) front end pivot (11) run through first bearing (6) and front end housing (3), rotor (10) terminal pivot (11) run through second bearing (8), rotor (10) terminal pivot (11) and third bearing (9) fixed connection, casing (2) inner wall is inlayed and is installed a plurality of stator (12).

2. The stator and rotor of high-speed permanent magnet motor convenient to disassemble and assemble according to claim 1, characterized in that: and a commutator (13) is fixedly arranged at the top end of the rotor (10).

3. The stator and rotor of high-speed permanent magnet motor convenient to disassemble and assemble according to claim 1, characterized in that: and a cooling fan (14) is fixedly mounted at one end of the rotating shaft (11) close to the rear end cover (4).

4. The stator and rotor of high-speed permanent magnet motor convenient to disassemble and assemble according to claim 1, characterized in that: the rear end cover (4) is provided with a plurality of heat dissipation holes (15).

5. The stator and rotor of high-speed permanent magnet motor convenient to disassemble and assemble according to claim 1, characterized in that: the inside cover of rear end housing (4) is equipped with the filter screen, rear end housing (4) and filter screen bolted connection.

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