CN209896793U - Permanent magnet direct current brush motor rotor assembly - Google Patents
Permanent magnet direct current brush motor rotor assembly Download PDFInfo
- Publication number
- CN209896793U CN209896793U CN201920687585.7U CN201920687585U CN209896793U CN 209896793 U CN209896793 U CN 209896793U CN 201920687585 U CN201920687585 U CN 201920687585U CN 209896793 U CN209896793 U CN 209896793U
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- China
- Prior art keywords
- rotating shaft
- pivot
- annular positioning
- circlip
- shaft
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- Expired - Fee Related
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Abstract
The utility model discloses a permanent magnetism direct current has brush motor rotor subassembly, main content is: rotor magnet steel fixed mounting on rotor core, be equipped with annular location boss in the pivot, rotor core installs in the pivot and rotor core front end top is on the epaxial annular location boss of pivot through first cover and the second cover that expands, the pivot front end is equipped with annular positioning groove, circlip for the front axle installs in the annular positioning groove of pivot front end, front bearing interference fit installs in the pivot and front bearing inner race rear end face top is on circlip for the front axle, the pivot rear end is equipped with annular positioning groove, circlip for the rear axle installs in the annular positioning groove behind the pivot, rear bearing interference fit installs in the pivot and rear bearing inner race front end face top is on circlip for the rear axle. The utility model discloses simple structure, it is very convenient that the installation is maintained, and job stabilization is reliable, fixes a position fixed firm and long service life, adopts the modularized design, makes things convenient for the dismouting.
Description
Technical Field
The utility model belongs to the technical field of a motor, concretely relates to permanent magnetism direct current has brush motor rotor subassembly.
Background
In some specific occasions, when there is the restriction to motor mounting dimension, in order to guarantee the performance of motor, the motor can not be connected with the screw for the material, and current permanent magnetism direct current has brush motor rotor subassembly structure complicacy, and the installation is maintained very complicacy, especially can not guarantee the performance of motor, and life is short moreover, and the operation effect is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough to above-mentioned prior art provides a permanent magnetism direct current has brush motor rotor subassembly, its simple structure, and it is very convenient to install and maintain, and job stabilization is reliable, fixes a position firmly and long service life, adopts the modularized design, makes things convenient for the dismouting.
In order to realize the technical purpose, the utility model discloses the technical scheme who takes does:
a permanent magnet dc brushed motor rotor assembly, wherein: comprises a rotating shaft, a rotor iron core, rotor magnetic steel, an elastic retainer ring for a rear shaft, a rear bearing, a second expansion sleeve, a first expansion sleeve, an elastic retainer ring for a front shaft and a front bearing, the rotor magnetic steel is fixedly arranged on the rotor iron core, the rotating shaft is provided with an annular positioning boss, the rotor core is arranged on the rotating shaft through the first expansion sleeve and the second expansion sleeve, the front end of the rotor core is propped against the annular positioning boss on the rotating shaft, the front end of the rotating shaft is provided with an annular positioning groove, the front shaft is arranged in the annular positioning groove at the front end of the rotating shaft through an elastic check ring, the front bearing is arranged on the rotating shaft in an interference fit manner, the rear end surface of the inner ring of the front bearing is propped against the elastic retaining ring for the front shaft, the rear end of the rotating shaft is provided with an annular positioning groove, the elastic retainer ring for the rear shaft is arranged in the annular positioning groove behind the rotating shaft, the rear bearing is arranged on the rotating shaft in an interference fit mode, and the front end face of the inner ring of the rear bearing is propped against the elastic retaining ring for the rear shaft.
In order to optimize the technical scheme, the specific measures adopted further comprise:
the central axis of the rotor core coincides with the central axis of the rotating shaft.
And dust covers are arranged at the two ends of the front bearing and the two ends of the rear bearing.
The front end of the rotating shaft is provided with a key groove, and the front side surface of the rotating shaft is provided with a threaded hole.
The utility model discloses a theory of operation: the modular design is adopted, so that the motor is effectively convenient to mount and dismount, and the working efficiency is improved; because the rotor core is longer, two expansion sleeves, namely the first expansion sleeve and the second expansion sleeve are adopted to realize the centering effect of the rotor core on the rotating shaft, and the annular positioning boss on the rotating shaft is adopted to realize the axial positioning of the rotor core, so that the mounting precision is improved, the service life of the rotor core is effectively prolonged, and the operation effect of the rotor core is effectively improved; the front bearing and the rear bearing are sealed self-lubricating bearings, so that the motor can work in a severe environment, and the service life of the motor can be effectively prolonged.
The utility model has the advantages of following several: simple structure, it is very convenient to install and maintain, and job stabilization is reliable, fixes a position firmly and long service life, adopts the modularized design, makes things convenient for the dismouting.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein the reference numerals are: the rotor comprises a rotating shaft 1, a rotor iron core 2, rotor magnetic steel 3, a circlip 4 for a rear shaft, a rear bearing 5, a second expansion sleeve 6, a first expansion sleeve 7, a circlip 8 for a front shaft and a front bearing 9.
Detailed Description
The following further description of the embodiments of the present invention is made with reference to the accompanying drawings:
a permanent magnet dc brushed motor rotor assembly, wherein: the rotor magnetic steel structure comprises a rotating shaft 1, a rotor core 2, rotor magnetic steel 3, a circlip 4 for a rear shaft, a rear bearing 5, a second expansion sleeve 6, a first expansion sleeve 7, a circlip 8 for a front shaft and a front bearing 9, wherein the rotor magnetic steel 3 is fixedly arranged on the rotor core 2, the rotating shaft 1 is provided with an annular positioning boss, the rotor core 2 is arranged on the rotating shaft 1 through the first expansion sleeve 7 and the second expansion sleeve 6, the front end of the rotor core 2 is propped against the annular positioning boss on the rotating shaft 1, the front end of the rotating shaft 1 is provided with an annular positioning groove, the circlip 8 for the front shaft is arranged in the annular positioning groove at the front end of the rotating shaft 1, the front bearing 9 is arranged on the rotating shaft 1 in an interference fit manner, the rear end surface of the front bearing 9 is propped against the circlip 8 for the front shaft, the rear end of the rotating shaft 1 is provided with an annular positioning groove, the circlip 4 for the rear shaft is arranged in the, the rear bearing 5 is arranged on the rotating shaft 1 in an interference fit mode, and the front end face of the inner ring of the rear bearing 5 is propped against the elastic retainer ring 4 for the rear shaft.
In the embodiment, the center axis of the rotor core 2 coincides with the center axis of the rotating shaft 1.
In the embodiment, dust covers are mounted on both ends of the front bearing 9 and both ends of the rear bearing 5.
In the embodiment, the front end of the rotating shaft 1 is provided with a key slot and the front side surface of the rotating shaft 1 is provided with a threaded hole.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.
Claims (4)
1. The utility model provides a permanent magnetism direct current has brush motor rotor subassembly which characterized in that: comprises a rotating shaft (1), a rotor core (2), rotor magnetic steel (3), a circlip (4) for a rear shaft, a rear bearing (5), a second expansion sleeve (6), a first expansion sleeve (7), a circlip (8) for a front shaft and a front bearing (9), wherein the rotor magnetic steel (3) is fixedly arranged on the rotor core (2), the rotating shaft (1) is provided with an annular positioning boss, the rotor core (2) is arranged on the rotating shaft (1) through the first expansion sleeve (7) and the second expansion sleeve (6), the front end of the rotor core (2) is propped against the annular positioning boss on the rotating shaft (1), the front end of the rotating shaft (1) is provided with an annular positioning groove, the circlip (8) for the front shaft is arranged in the annular positioning groove at the front end of the rotating shaft (1), the front bearing (9) is arranged on the rotating shaft (1) in a matching way, the rear end face of the front bearing (9) is propped against the circlip (8) for the front shaft, the rear end of the rotating shaft (1) is provided with an annular positioning groove, the elastic check ring (4) for the rear shaft is installed in the annular positioning groove behind the rotating shaft (1), and the rear bearing (5) is installed on the rotating shaft (1) in an interference fit mode, and the front end face of the inner ring of the rear bearing (5) is pushed against the elastic check ring (4) for the rear shaft.
2. The permanent magnet direct current brushed motor rotor assembly of claim 1, wherein: the central axis of the rotor core (2) is superposed with the central axis of the rotating shaft (1).
3. The permanent magnet direct current brushed motor rotor assembly of claim 1, wherein: and dust covers are arranged at two ends of the front bearing (9) and two ends of the rear bearing (5).
4. The permanent magnet direct current brushed motor rotor assembly of claim 1, wherein: the front end of the rotating shaft (1) is provided with a key groove, and the front side surface of the rotating shaft (1) is provided with a threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920687585.7U CN209896793U (en) | 2019-05-14 | 2019-05-14 | Permanent magnet direct current brush motor rotor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920687585.7U CN209896793U (en) | 2019-05-14 | 2019-05-14 | Permanent magnet direct current brush motor rotor assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209896793U true CN209896793U (en) | 2020-01-03 |
Family
ID=69020737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920687585.7U Expired - Fee Related CN209896793U (en) | 2019-05-14 | 2019-05-14 | Permanent magnet direct current brush motor rotor assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209896793U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552823A (en) * | 2022-01-11 | 2022-05-27 | 龚成乐 | A wrong utmost point rotor structure for exchanging synchronous servo motor of permanent magnetism |
-
2019
- 2019-05-14 CN CN201920687585.7U patent/CN209896793U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552823A (en) * | 2022-01-11 | 2022-05-27 | 龚成乐 | A wrong utmost point rotor structure for exchanging synchronous servo motor of permanent magnetism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200103 Termination date: 20200514 |