CN215682092U - Magnetic suspension motor axial magnetic bearing assembly fixture and motor - Google Patents
Magnetic suspension motor axial magnetic bearing assembly fixture and motor Download PDFInfo
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- CN215682092U CN215682092U CN202121878771.2U CN202121878771U CN215682092U CN 215682092 U CN215682092 U CN 215682092U CN 202121878771 U CN202121878771 U CN 202121878771U CN 215682092 U CN215682092 U CN 215682092U
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Abstract
The utility model relates to the field of magnetic suspension motors, in particular to an axial magnetic bearing assembly tool of a magnetic suspension motor and a motor. The tool comprises a second tool and a third tool; the second tool is provided with a second hole site and a tool opening arranged in the radial direction, the second hole site is used for being sleeved on the outer wall of the rotor, the second tool is divided into two parts which are not communicated at the position of the tool opening, and the second tool is made of sponge; the third tool is provided with a tool boss, and the tool boss is provided with a boss inner hole which axially penetrates through the tool boss; the boss inner hole is used for being sleeved on the outer wall of the rotor, and the tooling boss outer wall is used for being embedded in the axial magnetic bearing inner hole. The tool is provided with a tool boss between an inner hole of the axial magnetic bearing and the outer wall of the rotor so as to prevent the axial magnetic bearing from colliding with the outer wall of the rotor, and a fourth tool made of sponge material is arranged below the axial magnetic bearing so as to prevent the axial magnetic bearing from falling suddenly due to attraction to cause worker injury and damage to the axial magnetic bearing.
Description
Technical Field
The utility model relates to the field of magnetic suspension motors, in particular to an axial magnetic bearing assembly tool of a magnetic suspension motor and a motor.
Background
With the development of science and technology and the demand of production, magnetic suspension high-speed motors have become one of the hot spots of international electrotechnical field research. Because the magnetic suspension high-speed motor has the advantages of high energy density, small structural size, high efficiency and the like, the magnetic suspension high-speed motor is widely applied to the industrial fields of micro gas turbines, high-speed centrifugal compressors, molecular pumps, high-speed processing centers, flywheel energy storage and the like at present, and the application range of the magnetic suspension high-speed motor is still continuously expanded. In the working process of the magnetic suspension motor, the stability of a motor rotor is the key for ensuring the stable and efficient operation of the motor. The magnetic property of the permanent magnet of the motor rotor and the dynamic balance of the rotor directly influence the working performance of the magnetic suspension motor.
The Chinese utility model patent application (publication No. CN210210199U, published: 20200331) discloses a tool for assembling a magnetic suspension bearing, which comprises an arc-shaped bearing part mounting and connecting plate; one end of the bearing part mounting and connecting plate is provided with a hoisting plate, and the other end of the bearing part mounting and connecting plate is provided with an arc-shaped bearing part mounting and fixing table; the bearing part installing and fixing table is arranged on the inner side of the bearing part installing and connecting plate, and the hoisting plate is arranged on the outer side of the bearing part installing and connecting plate; the bearing portion mounting and fixing table is provided with a plurality of bearing portion mounting and connecting through holes. The tool for assembling the magnetic suspension bearing solves the problem that the large-diameter magnetic suspension bearing is difficult to assemble depending on manpower, improves the assembly efficiency of the magnetic suspension motor, and ensures the assembly precision of the magnetic suspension bearing.
The prior art has the following defects: the magnetic force is larger in the pressing process of the axial magnetic bearing in the assembling process, and the surface of the rotor is damaged due to collision and friction between the magnetic force and the outer wall of the rotor; and the magnetic force at a certain position during the pressing process is suddenly changed from repulsive force to attractive force, which easily causes worker injury and damage of the axial magnetic bearing due to collision.
Disclosure of Invention
The purpose of the utility model is: aiming at the problems, the axial magnetic bearing assembling tool and the motor of the magnetic suspension motor are provided, wherein a tool boss is arranged between an inner hole of the axial magnetic bearing and the outer wall of a rotor to prevent the axial magnetic bearing from colliding with the outer wall of the rotor, a fourth tool made of sponge material is arranged below the axial magnetic bearing, and the axial magnetic bearing is prevented from falling suddenly under the action of attraction to cause worker injury and axial magnetic bearing damage.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a magnetic suspension motor axial magnetic bearing assembly tool comprises a second tool and a third tool; the second tool is provided with a second hole site and a tool opening arranged in the radial direction, the second hole site is used for being sleeved on the outer wall of the rotor, the second tool is divided into two parts which are not communicated at the position of the tool opening, and the second tool is made of sponge; the third tool is provided with a tool boss, and the tool boss is provided with a boss inner hole which axially penetrates through the tool boss; the boss inner hole is used for being sleeved on the outer wall of the rotor, and the tooling boss outer wall is used for being embedded in the axial magnetic bearing inner hole.
Preferably, the tool body is made of aluminum alloy.
Preferably, a gap exists between the inner hole of the boss and the outer wall of the rotor of the magnetic suspension motor.
Preferably, the height of the tool boss is smaller than the axial length of an inner hole of an axial magnetic bearing of the magnetic suspension motor.
Preferably, the central axis of the tool boss coincides with the central axis of the tool body.
In addition, the utility model also discloses a magnetic suspension motor, which comprises a front bearing seat, a rotor, a thrust disc, an axial spacer ring, an axial magnetic bearing, a radial magnetic bearing, a rear bearing seat and a motor stator; the front bearing seat and the rear bearing seat are respectively positioned at the front end and the rear end of the motor stator, the two axial magnetic bearings and one radial magnetic bearing are both positioned in the front bearing seat, and the other radial magnetic bearing is positioned in the rear bearing seat; the thrust disc is fixed on the rotor, the axial magnetic bearing and the radial magnetic bearing are sleeved on the outer wall of the rotor, and the two axial magnetic bearings are respectively positioned at the two axial ends of the thrust disc; one axial magnetic bearing of the motor is assembled by adopting the assembly tool.
The axial magnetic bearing assembly tool for the magnetic suspension motor and the motor adopting the technical scheme have the advantages that:
firstly, assembling an axial magnetic bearing, a radial magnetic bearing and an axial spacer ring below to a front bearing seat, assembling a thrust disc to a rotor, then, downwards facing the thrust disc, aligning the center of the rotor with the center hole of the front bearing seat, and installing the thrust disc to the front bearing seat; when the other axial magnetic bearing above the front bearing seat is assembled, a second tool is placed on the upper surface of the front bearing seat; then, respectively sleeving the other axial magnetic bearing and a third tool on the outer wall of the rotor, wherein the third tool is positioned above the axial magnetic bearing, and the outer wall of a tool boss is embedded in an inner hole of the axial magnetic bearing; pressing the upper surfaces of the third tool and the axial magnetic bearing by attaching two hands until the axial magnetic bearing is contacted with the upper surface of the first tool; the first tool is removed, the first tool deforms along the opening of the tool and is separated from the rotor, and the axial magnetic bearing is mounted on the front bearing seat; in the mode, a tool boss is arranged between an inner hole of the axial magnetic bearing and the outer wall of the rotor to prevent the axial magnetic bearing from colliding with the outer wall of the rotor, and a fourth tool made of sponge material is arranged below the axial magnetic bearing to prevent workers and the axial magnetic bearing from being damaged due to the fact that the axial magnetic bearing suddenly falls under the action of attraction force.
Drawings
FIG. 1 is a schematic view of the structure of an assembled axial magnetic bearing.
Fig. 2 is a schematic structural diagram of a third tool.
Fig. 3 and 4 are schematic structural diagrams of the second tool.
Detailed Description
The following describes in detail embodiments of the present invention with reference to the drawings.
Example 1
1-4, the tool for assembling the axial magnetic bearing of the magnetic suspension motor comprises a second tool 2 and a third tool 3; the second tool 2 is provided with a second hole position 21 and a tool opening 22 arranged in the radial direction, the second hole position 21 is used for being sleeved on the outer wall of the rotor, the second tool 2 is divided into two parts which are not communicated at the position of the tool opening 22, and the second tool 2 is made of sponge; the third tool 3 is provided with a tool boss 31, and the tool boss 31 is provided with a boss inner hole 32 which axially penetrates through the tool boss 31; the boss inner hole 32 is used for being sleeved on the outer wall of the rotor, and the outer wall of the tooling boss 31 is used for being embedded in the axial magnetic bearing inner hole. In the method, an axial magnetic bearing, a radial magnetic bearing and an axial spacer ring below the axial magnetic bearing, the radial magnetic bearing and the axial spacer ring are assembled on a front bearing seat, a thrust disc is assembled on a rotor, the thrust disc faces downwards, the center of the rotor is aligned with the center hole of the front bearing seat, and the thrust disc is installed on the front bearing seat; when the other axial magnetic bearing above is assembled, the second tool 2 is placed on the upper surface of the front bearing seat; then, another axial magnetic bearing and a third tool 3 are respectively sleeved on the outer wall of the rotor, the third tool 3 is positioned above the axial magnetic bearing, and the outer wall of a tool boss 31 is embedded in an inner hole of the axial magnetic bearing; the upper surfaces of the third tool 3 and the axial magnetic bearing are attached by two hands and pressed downwards until the axial magnetic bearing is contacted with the upper surface of the first tool 1; the first tooling 1 is removed, the first tooling 1 deforms along the tooling opening 22 and is separated from the rotor, and the axial magnetic bearing is further installed on the front bearing seat; in the mode, a tool boss is arranged between an inner hole of the axial magnetic bearing and the outer wall of the rotor to prevent the axial magnetic bearing from colliding with the outer wall of the rotor, and a fourth tool made of sponge material is arranged below the axial magnetic bearing to prevent workers and the axial magnetic bearing from being damaged due to the fact that the axial magnetic bearing suddenly falls under the action of attraction force.
The tool body 30 is made of aluminum alloy. The aluminum alloy is a non-magnetic material and is not influenced by the magnetic force of the rotor in the assembling process.
A gap exists between the boss inner hole 32 and the outer wall of the rotor of the magnetic suspension motor so as to avoid generating larger friction with the outer wall of the rotor when the axial magnetic bearing is pressed down, thereby ensuring that the axial magnetic bearing is quickly pressed down. The height of the tooling boss 31 is smaller than the axial length of an inner hole of an axial magnetic bearing of the magnetic suspension motor. The central axis of the tool boss 31 coincides with the central axis of the tool body 30.
In addition, the utility model also discloses a magnetic suspension motor, which comprises a front bearing seat 51, a rotor 52, a thrust disc 53, an axial spacer ring 54, an axial magnetic bearing 55, a radial magnetic bearing, a rear bearing seat and a motor stator; the front bearing seat 51 and the rear bearing seat are respectively positioned at the front end and the rear end of the motor stator, two axial magnetic bearings 55 and one radial magnetic bearing are both positioned in the front bearing seat 51, and the other radial magnetic bearing is positioned in the rear bearing seat; the thrust disc 53 is fixed on the rotor 52, the axial magnetic bearing 55 and the radial magnetic bearing are sleeved on the outer wall of the rotor 52, and the two axial magnetic bearings 55 are respectively positioned at the two axial ends of the thrust disc 53; one axial magnetic bearing 55 of the motor is assembled by the assembly tool.
Claims (6)
1. The assembling tool for the axial magnetic bearing of the magnetic suspension motor is characterized by comprising a second tool (2) and a third tool (3); the second tool (2) is provided with a second hole site (21) and a tool opening (22) which is arranged in the radial direction, the second hole site (21) is used for being sleeved on the outer wall of the rotor, the second tool (2) is divided into two parts which are not communicated at the position of the tool opening (22), and the second tool (2) is made of sponge; the third tool (3) is provided with a tool boss (31), and the tool boss (31) is provided with a boss inner hole (32) which axially penetrates through the tool boss; the boss inner hole (32) is used for being sleeved on the outer wall of the rotor, and the outer wall of the tooling boss (31) is used for being embedded in the axial magnetic bearing inner hole.
2. The assembly fixture for the axial magnetic bearing of the magnetic suspension motor as claimed in claim 1, wherein the material of the fixture body (30) is aluminum alloy.
3. The assembly fixture for the axial magnetic bearing of the magnetic suspension motor as claimed in claim 1, wherein a gap exists between the boss inner hole (32) and the outer wall of the rotor of the magnetic suspension motor.
4. The assembling tool for the axial magnetic bearing of the magnetic suspension motor as claimed in claim 1, wherein the height of the tool boss (31) is less than the axial length of the inner hole of the axial magnetic bearing of the magnetic suspension motor.
5. The assembly tool for the axial magnetic bearing of the magnetic suspension motor as claimed in claim 1, wherein the central axis of the tool boss (31) coincides with the central axis of the tool body (30).
6. A magnetic suspension motor is characterized by comprising a front bearing seat (51), a rotor (52), a thrust disc (53), an axial spacer ring (54), an axial magnetic bearing (55), a radial magnetic bearing, a rear bearing seat and a motor stator; the front bearing seat (51) and the rear bearing seat are respectively positioned at the front end and the rear end of the motor stator, the two axial magnetic bearings (55) and one radial magnetic bearing are both positioned in the front bearing seat (51), and the other radial magnetic bearing is positioned in the rear bearing seat; the thrust disc (53) is fixed on the rotor (52), the axial magnetic bearing (55) and the radial magnetic bearing are sleeved on the outer wall of the rotor (52), and the two axial magnetic bearings (55) are respectively positioned at the two axial ends of the thrust disc (53); an axial magnetic bearing (55) of the machine is assembled using the assembly fixture of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121878771.2U CN215682092U (en) | 2021-08-11 | 2021-08-11 | Magnetic suspension motor axial magnetic bearing assembly fixture and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121878771.2U CN215682092U (en) | 2021-08-11 | 2021-08-11 | Magnetic suspension motor axial magnetic bearing assembly fixture and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215682092U true CN215682092U (en) | 2022-01-28 |
Family
ID=79951652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121878771.2U Active CN215682092U (en) | 2021-08-11 | 2021-08-11 | Magnetic suspension motor axial magnetic bearing assembly fixture and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215682092U (en) |
-
2021
- 2021-08-11 CN CN202121878771.2U patent/CN215682092U/en active Active
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