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CN-116014957-B - Variable position magnetic suspension direct-drive motor structure assembly

CN116014957BCN 116014957 BCN116014957 BCN 116014957BCN-116014957-B

Abstract

The invention relates to the technical field of direct-drive motors and discloses a variable-position magnetic suspension direct-drive motor structure assembly, which comprises a magnetic suspension direct-drive motor main body, wherein the outer side of the magnetic suspension direct-drive motor main body is connected with a mounting plate, the side part of the mounting plate is provided with a sliding block, the outer side of the magnetic suspension direct-drive motor main body is provided with a fixed cylinder, the sliding block is slidably arranged on the inner wall of the fixed cylinder, a wind source pipeline is connected above the fixed cylinder, a transposition motor and the magnetic suspension direct-drive motor main body are coaxially arranged, so that a transmission shaft rotates around the magnetic suspension direct-drive motor main body, the sliding block rotates along the fixed cylinder, and when the magnetic suspension direct-drive motor main body rotates, the position corresponding to the outlet of the wind source pipeline changes, so that fresh air of the wind source pipeline is more uniformly contacted with the surface of the magnetic suspension direct-drive motor main body, and the reliability of the magnetic suspension direct-drive motor structure assembly are further improved.

Inventors

  • YU YANAN
  • ZHOU YONG
  • Zhou Sicen
  • CHEN JIANJUN
  • JIANG CHENG

Assignees

  • 东莞市本末科技有限公司

Dates

Publication Date
20260512
Application Date
20221221

Claims (10)

  1. 1. The utility model provides a variable position magnetic suspension direct-drive motor structure assembly, includes magnetic suspension direct-drive motor main part (100), magnetic suspension direct-drive motor main part (100) inside is provided with magnetic suspension direct-drive motor stator (120), magnetic suspension direct-drive motor rotor (110), sensor (160), thrust magnetic bearing (130), first radial magnetic bearing (140) and second radial magnetic bearing (150), magnetic suspension direct-drive motor stator (120) fixed mounting is in the inner wall of magnetic suspension direct-drive motor main part, magnetic suspension direct-drive motor rotor (110) rotate and run through magnetic suspension direct-drive motor main part (100), and magnetic suspension direct-drive motor rotor (110) with magnetic suspension direct-drive motor main part (100) coaxial arrangement, first radial magnetic bearing (140) and thrust magnetic bearing (130) all install the tail end of magnetic suspension direct-drive motor rotor (110), second radial magnetic bearing (150) are installed the other end of direct-drive motor rotor (110), be connected with mounting piece (180) in the outside direct-drive motor main part (100), characterized in that slider (210) are installed in that side portion (180) are installed slider (200) magnetic suspension direct-drive motor main part (200) is installed in the fixed slider (200), and a wind source pipeline (220) is connected above the fixed cylinder (200).
  2. 2. The variable position magnetic suspension direct-drive motor structure assembly of claim 1, wherein the back side of the fixed cylinder (200) is an open end, the tail end of the magnetic suspension direct-drive motor main body (100) is provided with a heat dissipation fan blade (170), and the air outlet direction of the heat dissipation fan blade (170) is the tail end of the magnetic suspension direct-drive motor main body (100).
  3. 3. The variable position magnetic suspension direct-drive motor structure assembly according to claim 1, wherein a plurality of radiating fins (190) are arranged on the outer side of the magnetic suspension direct-drive motor main body (100), the radiating fins (190) are distributed in a circumferential array, and the radiating fins (190) are arranged as aluminum sheets.
  4. 4. The variable position magnetic suspension direct-drive motor structure assembly according to claim 1, wherein an auxiliary mounting plate (280) is arranged on the back side of the fixed cylinder (200), a transposition motor (290) is arranged on the upper side of the auxiliary mounting plate (280), an output shaft of the transposition motor (290) is connected with an eccentric coupler (250), the other side of the eccentric coupler (250) is connected with a transmission shaft (240), and the transmission shaft (240) is spliced with the sliding block (210).
  5. 5. The structure assembly of a variable position magnetic suspension direct-drive motor as claimed in claim 4, wherein the transposition motor (290) and the magnetic suspension direct-drive motor main body (100) are coaxially arranged, the transmission shaft (240) is connected with the side wall of the sliding block (210), and a ventilation hollow opening (211) is formed in the middle of the bottom of the sliding block (210).
  6. 6. The structure assembly of the variable position magnetic suspension direct-drive motor as claimed in claim 4, wherein an air guard plate (260) is arranged on the outer side of the middle part of the output shaft of the transposition motor (290), the air guard plate (260) is arranged as a circular table-shaped curved plate, a plurality of horizontal connecting rods (270) are arranged on the back side of the air guard plate (260), and the other ends of the plurality of horizontal connecting rods (270) are connected with the side wall of the transposition motor (290).
  7. 7. The structure assembly of a variable position magnetic suspension direct drive motor as set forth in claim 6, wherein a plurality of balls (261) are mounted on the side portion of the wind guard (260) in a rolling manner, and the balls (261) are attached to an output shaft of the transposition motor (290) in a rolling manner.
  8. 8. The magnetic suspension direct-drive motor structure assembly with the variable position according to claim 1, wherein an electromagnetic interference prevention shaft cylinder (230) is arranged at the front end of the fixed cylinder (200), the electromagnetic interference prevention shaft cylinder (230) and the fixed cylinder (200) are coaxially arranged, and the electromagnetic interference prevention shaft cylinder (230) is a carbon fiber cylinder.
  9. 9. The variable position magnetic suspension direct drive motor structure assembly according to claim 1, wherein a chute (201) is formed in the inner wall of the fixed cylinder (200), and the sliding block (210) is in clamping and sliding connection with the chute (201).
  10. 10. The magnetic suspension direct-drive motor structure assembly with the variable positions of claim 9, wherein the sliding block (210) is a rectangular block, two ends of the sliding block (210) are located in the sliding groove (201), the middle part of the sliding block (210) is in clearance fit with the fixed cylinder (200), pulleys (212) are rotatably arranged at two ends of the sliding block (210), and the pulleys (212) are in rolling fit with the sliding groove (201).

Description

Variable position magnetic suspension direct-drive motor structure assembly Technical Field The invention relates to the technical field of direct-drive motors, in particular to a variable-position magnetic suspension direct-drive motor structure assembly. Background The direct drive motor is mainly used for driving a load without a transmission device (such as a transmission belt and the like). The direct-drive motor overcomes the defects of high energy consumption, high noise, large vibration, multiple fault points and the like of the traditional low-speed motor and a gear box or belt transmission system, and can obtain remarkable effects of synergy, energy conservation and noise reduction. The direct drive motor can be classified into permanent magnet type (including permanent magnet synchronous type and permanent magnet brushless direct current type) and alternating current asynchronous type according to the working principle of the motor stator and the magnetic suspension direct drive motor rotor. The permanent magnet motor has the advantages of high power density, less heat generation of the rotor of the magnetic suspension direct drive motor, good speed moment characteristic and high working efficiency, so that the permanent magnet motor is more energy-saving than an asynchronous motor and is more suitable for high-speed operation. The bearings used in the direct drive motor include rolling bearings, liquid sliding bearings, air bearings, magnetic suspension bearings, and the like. The magnetic suspension bearing can realize non-contact support, does not need lubrication and sealing, has small vibration transmitted to a foundation by a shafting, long service life, low maintenance cost and the like, and has stronger competitiveness in the engineering field than other bearing types. The working principle of the magnetic suspension bearing is that the radial displacement and the axial displacement of the rotating shaft are detected through the displacement sensor, and then the electromagnetic force is changed by adjusting the current of the magnetic bearing coil through the controller according to the displacement of the rotating shaft deviating from the balance position, so that the rotating shaft is pulled back to the balance position. The magnetic bearing in the magnetic suspension direct drive motor comprises a radial magnetic bearing and a thrust magnetic bearing, and comprises a sensor for detecting radial displacement of the rotating shaft and a sensor for detecting axial displacement of the rotating shaft. In order to ensure that the rotor system of the motor magnetic suspension direct-drive motor cannot fall down and smash the magnetic bearing due to gravity under the stop state of the motor or the failure state of the magnetic bearing, the magnetic suspension high-speed motor is also provided with an auxiliary bearing. The magnetic suspension permanent magnet direct drive motor generally aims at torque output, and the high torque density greatly increases the heat generation of the stator coil of the magnetic suspension direct drive motor, so that the design of the motor needs to consider a cooling and radiating system, and therefore, the magnetic suspension direct drive motor structure assembly with the variable position is provided. Disclosure of Invention The invention provides a variable-position magnetic suspension direct-drive motor structure assembly, which has the beneficial effects that the problem that the magnetic suspension permanent-magnet direct-drive motor in the background art generally aims at torque output, and the high torque density greatly increases the heat generation of a stator coil of the magnetic suspension direct-drive motor, so that the design of the motor needs to take a cooling and radiating system into consideration. The invention provides a variable position magnetic suspension direct-drive motor structure assembly which comprises a magnetic suspension direct-drive motor main body, wherein a magnetic suspension direct-drive motor stator, a magnetic suspension direct-drive motor rotor, a sensor, a thrust magnetic suspension bearing, a first radial magnetic suspension bearing and a second radial magnetic suspension bearing are arranged in the magnetic suspension direct-drive motor main body, the magnetic suspension direct-drive motor stator is fixedly arranged on the inner wall of the magnetic suspension direct-drive motor main body, the magnetic suspension direct-drive motor rotor rotates to penetrate through the magnetic suspension direct-drive motor main body, the magnetic suspension direct-drive motor rotor and the magnetic suspension direct-drive motor main body are coaxially arranged, the first radial magnetic suspension bearing and the thrust magnetic suspension bearing are arranged at the tail end of the magnetic suspension direct-drive motor rotor, the second radial magnetic suspension bearing is arranged at the other end of the magnetic suspension direct