CN-224218267-U - Magnetic force driver with axial magnetic suspension support

Abstract

The utility model discloses a magnetic driver with an axial magnetic suspension support, which comprises a bearing seat, a rotating shaft penetrating through the bearing seat and magnetic suspension units symmetrically distributed at two axial ends of the rotating shaft, wherein the magnetic suspension units consist of stator magnetic rings fixed on the bearing seat and rotor magnetic rings fixed on the rotating shaft, the shaft sleeve is sleeved outside the rotating shaft, a radial sliding bearing is embedded between the bearing seat and the shaft sleeve, the axial sliding bearing is arranged at the tail end of the rotating shaft and corresponds to an axial baffle ring fixed at the bottom of the bearing seat, and a gland is fixedly arranged at the top of the bearing seat through a locking nut.

Inventors

• CHEN NIANJIN
• XIA QUANWEI
• DONG YONG

Assignees

• 温州双极磁传动设备有限公司

Dates

Publication Date

20260508

Application Date

20250428

Claims (6)

1. 1. The utility model provides a magnetic force transmission with axial magnetic suspension supports, its characterized in that, including bearing frame (1), run through pivot (12) that set up in bearing frame (1) and symmetric distribution in the magnetic suspension unit at the axial both ends of pivot (12), the magnetic suspension unit by be fixed in stator magnetic ring (10) on bearing frame (1) and be fixed in rotor magnetic ring (3) on pivot (12) constitute, stator magnetic ring (10) with rotor magnetic ring (3) are through magnetic repulsion for pivot (12) provides non-contact axial support, and axle sleeve (8) cover is located in pivot (12) outside, radial slide bearing (9) embedding in the clearance between bearing frame (1) with in axle sleeve (8), axial slide bearing (11) set up in pivot (12) end corresponds with be fixed in axial backing ring (2) of bearing frame (1) bottom, the bearing frame (1) top is equipped with gland (6) through lock nut (7) fixedly.
2. 2. A magnetic actuator with axial magnetic levitation support according to claim 1, characterized in that the rotor magnet ring (3) and the stator magnet ring (10) form a gap-adjustable magnetic repulsion structure.
3. 3. A magnetic drive with axial magnetic levitation support according to claim 1, characterized in that a radial gap is provided between the radial sliding bearing (9) and the bushing (8).
4. 4. A magnetic actuator with axial magnetic suspension support according to claim 1, characterized in that the lock nut (7) is fixed on the top end of the rotating shaft (12), the gland (6) and the gland spacer (5) positioned on the inner side of the gland (6) are fastened through threaded connection, and a labyrinth sealing structure (13) is arranged in the gland (6).
5. 5. A magnetic actuator with axial magnetic levitation support according to claim 4, characterized in that the labyrinth seal (13) of the gland (6) comprises alternately arranged annular protrusions and recesses.
6. 6. A magnetic drive with axial magnetic levitation support according to claim 1, characterized in that an outer magnetic spacer (4) is arranged between the radial sliding bearing (9) and the bearing housing (1).

Description

Magnetic force driver with axial magnetic suspension support Technical Field The utility model relates to the technical field of drivers, in particular to a magnetic driver with an axial magnetic suspension support. Background In the design and manufacture of magnetic drives, the stability and reliability of the axial support is critical to ensure the overall performance of the drive. Conventional axial support often relies on mechanical contact or friction, which not only tends to produce wear and heat, but also results in uneven distribution of support force due to imperfections in the contact surfaces, which in turn affects the efficiency and life of the transmission. In addition, in industries requiring high cleanliness environments, such as pharmaceutical and semiconductor manufacturing, it is often difficult to meet the requirements for cleanliness with conventional axial support methods. Particles and impurities generated by mechanical contact and friction may contaminate the working environment, posing a threat to product quality. In order to overcome the defects of the traditional axial support mode, the magnetic levitation technology is gradually introduced into the design of the magnetic actuator. The magnetic levitation technology utilizes magnetic field force to realize non-contact support, thereby avoiding the problems caused by mechanical contact and friction. However, how to realize stable and efficient axial magnetic suspension support in the magnetic actuator is still a technical problem to be solved, so the utility model provides a magnetic actuator with the axial magnetic suspension support. Disclosure of Invention The utility model aims to provide a magnetic driver with an axial magnetic suspension support, which can provide stable and efficient axial supporting force, has effective protection measures and high cleanliness, and can obviously improve the performance and service life of the magnetic driver and meet the demands of wider industries. In order to achieve the above purpose, the present utility model provides the following technical solutions: The utility model provides a magnetic force driver with axial magnetic suspension supports, includes the bearing frame, runs through the pivot that sets up in the bearing frame and symmetric distribution in the magnetic suspension unit at the axial both ends of pivot, the magnetic suspension unit by be fixed in stator magnetic ring on the bearing frame with be fixed in epaxial rotor magnetic ring, stator magnetic ring with rotor magnetic ring is through magnetic repulsion for the pivot provides non-contact axial support, the axle sleeve cover is located the pivot is outside, radial slide bearing embedding in the bearing frame with in the clearance between the axle sleeve, axial slide bearing set up in the pivot is terminal, corresponds with the axial backing ring that is fixed in the bearing frame bottom, the bearing frame top is fixed through lock nut and is equipped with the gland. By adopting the technical scheme, the utility model has the following advantages: The magnetic suspension unit is arranged, and axial repulsive force is generated through the magnetic pole homodromous repulsion between the stator magnetic ring and the rotor magnetic ring, so that bidirectional stable support can be provided for the rotating shaft; the axial sliding bearing can be matched with the axial baffle ring to limit the axial displacement of the rotating shaft, thereby preventing the damage to the axial magnetic ring caused by excessive axial load and effectively ensuring the safety and reliability of the whole driver. Further, the rotor magnetic ring and the stator magnetic ring form a magnetic repulsion structure with adjustable gaps. By adopting the technical scheme, the utility model has the following advantages: The magnetic repulsion structure is arranged, so that when the rotating shaft is axially disturbed to move upwards, the upper magnetic suspension unit gap is reduced, the repulsive force is increased, the lower magnetic suspension unit gap is increased, the repulsive force is reduced, a downward restoring force is formed, and when the rotating shaft is axially disturbed to move downwards, the lower magnetic suspension unit gap is reduced, the repulsive force is increased, the upper magnetic suspension unit gap is increased, the repulsive force is reduced, and an upward restoring force is formed, so that the stability of the rotating shaft is realized. Further, a radial clearance is provided between the radial sliding bearing and the shaft sleeve. By adopting the technical scheme, the utility model has the following advantages: According to the utility model, the radial clearance is arranged, so that when the rotating shaft swings radially, the radial sliding bearing provides correction force through the clearance, and the magnetic suspension unit is prevented from contacting. Further, the lock nut is fixed on the top end of the rotating sh