CN111365370A

CN111365370A - Suspension type automobile bearing with built-in self-excitation pole

Info

Publication number: CN111365370A
Application number: CN201811594162.7A
Authority: CN
Inventors: 王彩芹
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-25
Filing date: 2018-12-25
Publication date: 2020-07-03

Abstract

The invention discloses a suspension automobile bearing with a built-in self-excitation pole, which comprises a bearing inner ring, a bearing outer ring, a stator iron core, a rotor iron core and a controller, wherein through holes are formed in the centers of the bearing outer ring and the bearing inner ring, the bearing inner ring is arranged in the center of the through hole of the bearing outer ring, a gap layer is arranged between the bearing outer ring and the bearing inner ring, a circle of silicon steel layer is attached to the inner circumferential surface of the bearing outer ring, a plurality of stator iron cores are convexly arranged on the inner side surface of the silicon steel layer facing to the center, a plurality of circles of electromagnetic windings are arranged around the stator iron cores in a winding manner in the same direction, a plurality of rare earth permanent magnets are embedded on the outer circumferential surface of the bearing inner ring at equal intervals, magnetic poles generated by the upper end surfaces of the rare earth permanent magnets and the lower end surfaces of the stator iron cores are different magnetic poles, and a power supply module and a constant current output circuit are arranged in the controller, and the controller is arranged on the outer side wall of the bearing outer ring. Through the mode, the non-contact high-speed rotation between the inner ring and the outer ring of the bearing can be realized after the roller structure is removed.

Description

Suspension type automobile bearing with built-in self-excitation pole

Technical Field

The invention relates to the field of automobile bearings, in particular to a suspension type automobile bearing with a built-in self-excitation pole.

Background

The magnetic bearing is a novel high-performance bearing, compared with the traditional ball bearing, sliding bearing and oil film bearing, the magnetic bearing has no mechanical contact, the rotor can reach very high running speed, and the magnetic bearing has the advantages of small mechanical wear, low energy consumption, small noise, long service life, no need of lubrication, no oil pollution and the like, and is particularly suitable for special environments such as high speed, vacuum, ultra-clean and the like. The bearing can be widely applied to the fields of machining, turbomachinery, aerospace, vacuum technology, rotor dynamic characteristic identification and testing and the like, is known as a promising novel bearing, and has the characteristics of no friction, no abrasion and no need of lubrication due to no mechanical contact, the magnetic bearing has the characteristics of no friction, no abrasion and no need of lubrication, the rotor can rotate at high speed, the rotating speed of the rotor is only limited by the strength of a rotor material, the power consumption and the noise are extremely low, and the bearing can be suitable for various complex application environments.

Disclosure of Invention

The invention mainly solves the technical problem of providing a suspension type automobile bearing with a built-in self-excitation pole, which can realize non-contact high-speed rotation between an inner ring and an outer ring of the bearing after a roller structure is removed.

In order to solve the technical problems, the invention adopts a technical scheme that: the suspension type automobile bearing with the built-in self-excitation pole comprises a bearing inner ring, a bearing outer ring, a stator iron core, a rotor iron core and a controller, wherein through holes are formed in the centers of the bearing outer ring and the bearing inner ring, the bearing inner ring is arranged in the center of the through hole of the bearing outer ring, a gap layer is arranged between the bearing outer ring and the bearing inner ring, a circle of silicon steel layer is attached to the inner peripheral surface of the bearing outer ring, a plurality of stator iron cores are arranged on the inner side surface of the silicon steel layer in a protruding mode towards the center, a plurality of electromagnetic windings are arranged on the periphery of each stator iron core in a winding mode in the same direction, a plurality of rare earth permanent magnets are embedded on the outer peripheral surface of the bearing inner ring at equal intervals, magnetic poles generated by the upper end surfaces of the rare earth permanent magnets and the lower end surfaces of the stator iron cores are synonym, and a power supply module and a constant current output circuit are arranged in the controller, and the controller is arranged on the outer side wall of the bearing outer ring.

In a preferred embodiment of the present invention, the number of the stator cores is the same as the number of the rare earth permanent magnets.

In a preferred embodiment of the invention, the outer end of the silicon steel layer is fixed by inserting a screw into the inner part of the bearing outer ring.

In a preferred embodiment of the present invention, the stator core and the silicon steel layer are integrally formed of the same material.

The invention has the beneficial effects that: the invention designs a most novel bearing, namely a magnetic bearing, which is designed by referring to the internal magnetic field generation principle of a permanent magnet motor, the magnetic bearing is a supporting form of supporting a load or a suspension rotor by magnetic field force, in recent years, the bearing is developed rapidly, and particularly applied in high-speed, low-friction, high-temperature and vacuum environments, because no contact and almost no friction force exist, heat can not be generated, and the problems of heating and the like do not need to be considered.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic diagram of a preferred embodiment of a self-exciting pole built-in suspension type automobile bearing according to the present invention;

the parts in the drawings are numbered as follows: 1. a bearing inner race; 2. a bearing outer race; 3. a stator core; 4. a rare earth permanent magnet; 5. an electric rail controller; 6. a silicon steel layer; 7. and an electromagnetic winding.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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, an embodiment of the present invention includes:

a suspension type automobile bearing with a built-in self-excitation pole comprises a bearing inner ring 1, a bearing outer ring 2, a stator iron core 3, rare earth permanent magnets 4 and a controller 5, wherein through holes are formed in the centers of the bearing outer ring 2 and the bearing inner ring 1, the bearing inner ring 1 is arranged in the center of the through hole of the bearing outer ring 2, a clearance layer is arranged between the bearing outer ring 2 and the bearing inner ring 1, a circle of silicon steel layer 6 is attached to the inner peripheral surface of the bearing outer ring 2, a plurality of stator iron cores 3 are arranged on the inner side surface of the silicon steel layer 6 in a protruding mode towards the center, a plurality of electromagnetic windings 7 are arranged around the stator iron cores 3 in a winding mode in the same direction, a plurality of rare earth permanent magnets 4 are embedded on the outer peripheral surface of the bearing inner ring 1 at equal intervals, and the magnetic poles generated by the upper end surface of the rare earth permanent magnets 4 and the lower, the two ends of the electromagnetic winding 7 are connected to the controller 5, a power supply module and a constant current output circuit are arranged in the controller 5, and the controller 5 is installed on the outer side wall of the bearing outer ring 2.

In addition, the number of the stator cores 3 is the same as that of the rare earth permanent magnets 4.

In addition, the outer side end of the silicon steel layer 6 is inserted into the bearing outer ring 2 through a screw to be fixed.

In addition, the stator core 3 and the silicon steel layer 6 are integrally formed of the same material.

The working principle of the invention is that the centers of the bearing outer ring 2 and the bearing inner ring 1 are both provided with through holes, the bearing inner ring 1 is arranged at the center of the through hole of the bearing outer ring 2, a gap layer is arranged between the bearing outer ring 2 and the bearing inner ring 1, the inner peripheral surface of the bearing outer ring 2 is attached with a circle of silicon steel layer 6, the outer side end of the silicon steel layer 6 is inserted into the bearing outer ring 2 through a screw to realize fixation, the inner side of the silicon steel layer 6 is convexly provided with a plurality of stator cores 3 facing to the center, the stator cores 3 and the silicon steel layer 6 are integrally formed by the same material, because the silicon steel is a magnetic substance with strong magnetic conductivity, in an electrified coil, the silicon steel can generate larger magnetic induction intensity, and firmly locks magnetic induction lines in the iron cores, and the energy utilization.

A plurality of circles of electromagnetic windings 7 are arranged around the stator core 3 in the same winding direction, and all the coils on the surface of the stator core 3 are wound in a clockwise or counterclockwise manner, so that the magnetic poles generated at the lower end after being electrified are both N poles or S poles.

The periphery surface of bearing inner race 1 inlays at equidistant a plurality of tombarthite permanent magnet 4 that is equipped with, stator core 3's number is the same with tombarthite permanent magnet 4's number, the produced magnetic pole of the up end of tombarthite permanent magnet 4 and stator core 3's lower terminal surface is the synonym magnetic pole, electromagnetic winding 7's both ends are connected to controller 5, be equipped with power module and constant current output circuit in the controller 5, controller 5 installs on the lateral wall of bearing outer lane 2, constant current output circuit's effect just is that the control voltage module exports the electric current of invariable size to the copper coil, realize the excitation.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A suspension type automobile bearing with a built-in self-excitation pole comprises a bearing inner ring, a bearing outer ring, a stator iron core, a rotor iron core and a controller, and is characterized in that through holes are formed in the centers of the bearing outer ring and the bearing inner ring, the bearing inner ring is arranged in the center of the through hole of the bearing outer ring, a gap layer is arranged between the bearing outer ring and the bearing inner ring, a circle of silicon steel layer is attached to the inner circumferential surface of the bearing outer ring, a plurality of stator iron cores are convexly arranged on the inner side surface of the silicon steel layer facing the center, a plurality of rings of electromagnetic windings are arranged around the stator iron core in the same direction in a winding mode, a plurality of rare earth permanent magnets are embedded on the outer circumferential surface of the bearing inner ring at equal intervals, magnetic poles generated by the upper end surface of each rare earth permanent magnet and the lower end surface of the stator iron core are unlike magnetic poles, and, and a power supply module and a constant current output circuit are arranged in the controller, and the controller is arranged on the outer side wall of the bearing outer ring.

2. The self-exciting pole built-in suspension type automobile bearing according to claim 1, wherein the number of said stator cores is the same as the number of said rare earth permanent magnets.

3. The self-exciting pole built-in suspension type automobile bearing according to claim 1, wherein an outer end of said silicon steel layer is fixed by being inserted into an inner portion of said bearing outer ring by a screw.

4. The self-exciting pole built-in suspension type automobile bearing according to claim 1, wherein said stator core and said silicon steel layer are integrally formed of the same material.