CN213846362U - Outer rotor electric spindle and permanent magnet motor structure of outer rotor electric spindle - Google Patents
Outer rotor electric spindle and permanent magnet motor structure of outer rotor electric spindle Download PDFInfo
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- CN213846362U CN213846362U CN202022277433.5U CN202022277433U CN213846362U CN 213846362 U CN213846362 U CN 213846362U CN 202022277433 U CN202022277433 U CN 202022277433U CN 213846362 U CN213846362 U CN 213846362U
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- rotor electric
- electric spindle
- outer rotor
- spindle
- permanent magnet
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Abstract
The utility model relates to a permanent-magnet machine technical field, concretely relates to permanent-magnet machine structure of external rotor electric main shaft and external rotor electric main shaft aims at solving the problem that stability is not high and application scope forms for a short time among the prior art, and its technical essential lies in: including rotator and axle core stator, the axle core stator is fixed in on the motor, the rotator cover is established axle core stator periphery is followed the axis direction of axle core stator rotates the setting. The permanent magnet motor structure of the outer rotor electric spindle has the advantages that the traditional electric spindle structure is broken through, the novel structure that the spindle core stator of the spindle is used as a reference for fixing, the outer shell sleeve is used for rotating is adopted, the process of sticking magnetic sheets on the inner cavity wall of the sleeve is adopted, the spindle core is an innovative application of a stator static cooling structure, and the permanent magnet motor structure of the outer rotor electric spindle has high stability and high precision, and is large in motor output torque and rigidity; and the permanent magnet motor structure of the outer rotor electric spindle can meet the requirements of special machine tool structure.
Description
Technical Field
The utility model relates to a permanent-magnet machine technical field, concretely relates to permanent-magnet machine structure of external rotor electric main shaft and external rotor electric main shaft.
Background
The permanent magnet synchronous motor provides excitation by the permanent magnet, so that the structure of the motor is simpler, the processing and assembling cost is reduced, a collecting ring and an electric brush which are easy to cause problems are omitted, and the running reliability of the motor is improved; and because excitation current is not needed, excitation loss is avoided, and the efficiency and the power density of the motor are improved. The permanent magnet built-in motor comprises a stator structure and a rotor structure, and a water cooling sleeve structure is required to be arranged outside the stator structure. For an internal motor with permanent magnets mounted on a rotor structure, the rotor is divided into a surface type and an internal type according to the position of the permanent magnets, and the internal type is divided into a radial type, a tangential type and a mixed type according to the mutual relation between the magnetization direction and the rotation direction of the rotor.
The traditional main shaft is usually fixed by taking a shell as a reference, and a shaft core main shaft is taken as a rotating body, so that the structural stability is not high, and the requirement of a special machine tool structure cannot be met.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that the requirement that stability is not high and can not be applicable to special machine tool structure forms among the prior art to an external rotor electric main shaft is provided.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides an outer rotor electric main shaft, includes rotator and axle core stator, the axle core stator is fixed in on the motor, the rotator cover is established axle core stator periphery is followed the axis direction of axle core stator rotates the setting.
In some embodiments of the present application, the rotator includes a sleeve and a permanent magnet, the sleeve is disposed in a cylindrical shape, and the permanent magnet is attached to the inner wall of the sleeve.
In some embodiments of the present application, the outer rotor electric spindle employs a water-cooled sealing structure.
The application also provides a permanent magnet motor structure of the outer rotor electric spindle, which comprises the outer rotor electric spindle.
The permanent magnet motor structure of the outer rotor electric spindle breaks through the traditional electric spindle structure, the shaft core stator of the spindle is used as a reference for fixing, the outer shell sleeve is used as a novel structure for rotating, the process of pasting magnetic sheets on the inner cavity wall of the sleeve is adopted, and the shaft core is an innovative application of a stator static cooling structure; the output torque of the motor is large, and the rigidity is large; the permanent magnet motor structure of the outer rotor electric spindle can meet the requirements of special machine tool structure requirements, such as a guide wheel of a high-precision centerless grinding machine, a grinding wheel spindle and application with special structure requirements.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a partial cross-sectional view of a permanent magnet motor structure of an outer rotor electric spindle according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of the rotating body on the outer rotor electric spindle according to an embodiment of the present invention.
Description of reference numerals:
1. an outer rotor electric spindle; 11. a rotating body; 111. a sleeve; 112. a permanent magnet sheet; 12. and a shaft core stator.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and 2, a permanent magnet motor structure of an outer rotor electric spindle includes an outer rotor electric spindle, where the outer rotor electric spindle includes a rotating body 11 and a shaft core stator 12, the shaft core stator 12 is fixed on a motor, and the rotating body 11 is sleeved on the periphery of the shaft core stator 12 and is rotatably disposed along the axial direction of the shaft core stator 12. In this embodiment, the outer rotor electric spindle is fixed with the shaft core stator 12 as a reference, and rotates with the rotation sleeve around the shaft core stator 12, so that the permanent magnet motor structure of the outer rotor electric spindle can be used as a built-in permanent magnet synchronous motor, and can meet the requirements of special machine tool structure.
In one embodiment, referring to fig. 2, the rotating body 11 includes a sleeve 111 and a permanent magnet sheet 112, the sleeve 111 is disposed in a cylindrical shape, and the permanent magnet sheet 112 is attached to an inner wall of the sleeve 111.
In one embodiment, the outer rotor electric spindle 1 adopts a water-cooling sealing structure. The constant temperature and long-time high-efficiency operation of the outer rotor electric spindle can be ensured through the water-cooling sealing structure.
The permanent magnet motor structure of the outer rotor electric spindle breaks through the traditional electric spindle structure, the shaft core stator 12 of the spindle is used as a reference for fixing, the outer shell sleeve 111 is used as a novel structure for rotating, the process of sticking the permanent magnet sheet 112 on the inner cavity wall of the sleeve 111 is adopted, and the innovative application of the static cooling structure of the shaft core stator 12 is realized, the permanent magnet motor structure of the outer rotor electric spindle has high stability and high precision, the axial movement is less than or equal to 0.001mm, and the radial runout is less than or equal to 0.001 mm; the output torque of the motor is large, and the rigidity is large; the permanent magnet motor structure of the outer rotor electric spindle can meet the requirements of special machine tool structure requirements, such as a guide wheel of a high-precision centerless grinding machine, a grinding wheel spindle and application with special structure requirements.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (4)
1. An outer rotor electric spindle, characterized in that: including rotator (11) and axle core stator (12), axle core stator (12) are fixed in on the motor, rotator (11) cover is established axle core stator (12) periphery is followed the axis direction of axle core stator (12) rotates the setting.
2. The external rotor electric spindle of claim 1, wherein: the rotating body (11) comprises a sleeve (111) and permanent magnet sheets (112), the sleeve (111) is arranged in a cylindrical shape, and the permanent magnet sheets (112) are attached to the inner wall of the sleeve (111).
3. The external rotor electric spindle of claim 2, wherein: the outer rotor electric spindle (1) adopts a water-cooling sealing structure.
4. The utility model provides a permanent-magnet machine structure of external rotor electric main shaft which characterized in that: comprising the external rotor electric spindle of any of claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022277433.5U CN213846362U (en) | 2020-10-14 | 2020-10-14 | Outer rotor electric spindle and permanent magnet motor structure of outer rotor electric spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022277433.5U CN213846362U (en) | 2020-10-14 | 2020-10-14 | Outer rotor electric spindle and permanent magnet motor structure of outer rotor electric spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213846362U true CN213846362U (en) | 2021-07-30 |
Family
ID=77008749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022277433.5U Active CN213846362U (en) | 2020-10-14 | 2020-10-14 | Outer rotor electric spindle and permanent magnet motor structure of outer rotor electric spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213846362U (en) |
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2020
- 2020-10-14 CN CN202022277433.5U patent/CN213846362U/en active Active
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