CN211508749U - Novel elevator outer rotor traction machine motor with ventilation structure - Google Patents
Novel elevator outer rotor traction machine motor with ventilation structure Download PDFInfo
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- CN211508749U CN211508749U CN202020176717.2U CN202020176717U CN211508749U CN 211508749 U CN211508749 U CN 211508749U CN 202020176717 U CN202020176717 U CN 202020176717U CN 211508749 U CN211508749 U CN 211508749U
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- rotating shaft
- ventilation structure
- traction machine
- ventilation
- rotor
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Abstract
The invention belongs to the technical field of motors, and particularly relates to a novel elevator outer rotor traction machine motor with a ventilation structure. The traction machine solves the problems of no axial ventilation, poor cooling effect, concentrated heat and high product cost of the conventional similar outer rotor traction machine. Comprises a stator casing and a rotor bracket; the rotating shaft of the rotor bracket is rotatably connected with the stator shell through a bearing to form a motor structure; the rotor support is characterized in that a first ventilation structure arranged axially is arranged around the periphery of a rotating shaft of the rotor support, and gas can circulate along the first ventilation structure axially; and a second ventilation structure is axially arranged on the stator casing.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to a novel elevator outer rotor traction machine motor with a ventilation structure.
Background
At present, the external rotor elevator tractor motors at home and abroad are all of a radial ventilation structure, the heat of the motor is concentrated on the outer side of the iron core press-mounting surface, the heat can not be quickly dissipated, the heat is transferred to an encoder and a bearing, the service life of the encoder and the bearing is influenced to a certain extent, and under the use condition that part of the motor is frequently overloaded, the oil leakage condition of the rear bearing position of the motor is occasionally seen, so that the reliability and the service life of the elevator tractor are reduced.
In the conventional elevator outer rotor tractor motor, the inner circle of the stator core, which generates heat during operation, is concentrated, and cannot be effectively dissipated due to small space, small heat dissipation area and poor air circulation, the temperature of the motor is increased due to heat accumulation of the motor, the resistance value of a winding is increased due to temperature rise, the heating value under the same increased working current is increased, the heating is further increased, the heat cannot be dissipated, the temperature is further increased, and vicious circle is caused; the heat accumulation causes the temperature rise of the bearing and the encoder, and the lubricating grease leaching condition of the motor bearing is occasionally seen under the use condition of partial frequent overload, so that the service life of the bearing is shortened, and serious motor faults can be caused seriously; meanwhile, the working temperature of the encoder is increased, and the running safety and reliability of the motor are reduced.
In order to solve the problems, the general solution of the like products is to increase the usage amount of ferromagnetic materials of the motor to reduce the heat productivity of the motor, but the solution increases the cost of the motor and causes unnecessary waste of raw material cost.
Disclosure of Invention
The invention provides a novel elevator outer rotor tractor motor with a ventilation structure, aiming at overcoming the defects in the prior art, and solving the problems of no ventilation in the axial direction, poor cooling effect, concentrated heat and high product cost of the conventional similar outer rotor tractor.
In order to achieve the purpose, the invention adopts the following technical scheme that the stator comprises a stator casing and a rotor bracket; and a rotating shaft of the rotor bracket is rotatably connected with the stator shell through a bearing to form a motor structure.
The rotor support is characterized in that a first ventilation structure arranged axially is arranged around the periphery of a rotating shaft of the rotor support, and gas can circulate along the first ventilation structure in the axial direction.
And a second ventilation structure is axially arranged on the stator casing.
Furthermore, the first ventilation structure and the second ventilation structure are both a plurality of axial ventilation holes.
Furthermore, the rotor bracket is rotatably connected with the stator casing through a deep groove ball bearing and a self-aligning roller bearing.
Further, the stator core is fixed in the stator housing.
Further, the stator core is embedded in the permanent magnet.
Furthermore, the stator casing is provided with a rotating shaft sleeve matched with the rotating shaft of the rotor support, and when the rotor support is connected with the stator casing in a matched mode, the rotating shaft is installed in the rotating shaft sleeve.
Furthermore, the rotating shaft of the rotor support is of a funnel-shaped structure with one wide end and one narrow end, the narrow part of the funnel-shaped structure is rotatably connected with the rotating shaft sleeve through a deep groove ball bearing, and the wide part of the funnel-shaped structure is rotatably connected with the rotating shaft sleeve through a self-aligning roller bearing; when the rotating shaft is positioned in the rotating shaft sleeve, the ventilation structure is positioned in the rotating shaft sleeve. The gas can flow along the ventilation structure in the axial direction.
Furthermore, a ventilation hood is arranged outside a rotating shaft sleeve of the stator casing, a plurality of ventilation holes along the axial direction are separated between the shaft sleeve and the ventilation hood, and a second passing structure is formed.
Compared with the prior art, the invention has the beneficial effects.
Compared with the prior technical scheme in China, the invention has the following advantages.
The invention optimizes the traditional elevator outer rotor traction machine, greatly improves the heat dissipation capacity of the product by increasing the axial ventilation capacity on the premise of not influencing the performance of the existing product, and can greatly improve the performance of the motor under the same volume.
The invention greatly reduces the temperature of the deep groove ball bearing and the encoder which are most easy to concentrate heat of the motor, so that the temperature of the whole motor is more balanced, the condition that the service life of the bearing and the encoder is influenced by heat concentration is reduced, and the safety and the reliability of the product are improved.
The axial ventilation holes are additionally arranged, so that the temperature distribution of the motor is more balanced, and the material consumption of the motor can be greatly reduced under the condition of the same motor temperature rise, so that the cost is reduced.
Drawings
The invention is further described with reference to the following figures and detailed description. The scope of the invention is not limited to the following expressions.
Fig. 1-3 are schematic structural views of an elevator outer rotor traction machine motor with a ventilation structure.
Fig. 4-6 are schematic views of the stator frame ventilation structure of the present invention.
Fig. 7-9 are schematic views of the venting structure of the rotor spider of the present invention.
In the figure, 1 is a motor structure, 2 is a self-aligning roller bearing, 3 is a rotor bracket, 4 is a deep groove ball bearing, 5 is a stator casing, 6 is a stator core with windings, 7 is a permanent magnet, 8 is an encoder, 9 is a ventilation structure I, and 10 is a ventilation structure II.
Detailed Description
As shown in fig. 1-9, the present invention includes a stator housing 5 and a rotor frame 3; the rotating shaft of the rotor bracket 3 is rotatably connected with the stator casing through a bearing to form a motor structure 1; the gas-liquid separator is characterized in that a first ventilation structure 9 which is axially arranged is arranged on the periphery of a rotating shaft of the rotor support 3 in a surrounding mode, and gas can circulate along the first ventilation structure 9 in the axial direction; and a second ventilation structure 10 is axially arranged on the stator casing 5. The gas can flow along the second ventilation structure 10 in the axial direction. The stator housing 5 and the rotor support 3 have ventilation structures simultaneously, so that the motor has axial ventilation capacity; the heat dissipation capacity of the product is greatly improved, the reliability of the product is improved, and meanwhile, the product cost is reduced.
Further, the first ventilation structure 9 and the second ventilation structure 10 are all provided with a plurality of axial ventilation holes.
Further, the rotor bracket 3 is rotatably connected with the stator casing 5 through a deep groove ball bearing 4 and a self-aligning roller bearing 2.
Further, the joint of the rotating shaft of the rotor bracket 3 and the stator casing 5 is rotatably connected through a deep groove ball bearing 4 and a self-aligning roller bearing 2.
Further, a wound stator core 6 is fixed inside the stator case 5.
Further, the stator core 6 is embedded in the permanent magnet 7.
Further, the stator housing 5 is provided with a rotating shaft sleeve matched with the rotating shaft of the rotor support 3, and when the rotor support is matched and connected with the stator housing, the rotating shaft is arranged in the rotating shaft sleeve.
Furthermore, the rotating shaft of the rotor bracket 3 is of a funnel-shaped structure with one wide end and one narrow end, the narrow part of the funnel-shaped structure is rotatably connected with the rotating shaft sleeve through a deep groove ball bearing 4, and the wide part of the funnel-shaped structure is rotatably connected with the rotating shaft sleeve through a self-aligning roller bearing 2; when the rotating shaft is positioned in the rotating shaft sleeve, the first ventilation structure 9 is positioned in the rotating shaft sleeve. The gas can flow along the ventilation structure in the axial direction.
Further, a ventilation hood is arranged outside a rotating shaft sleeve of the stator casing 5, a plurality of ventilation holes along the axial direction are separated between the shaft sleeve and the ventilation hood, and a passing structure II 10 is formed.
After the motor assembly is assembled, heat emitted by the winding stator core can be transmitted out through air circulating through the first ventilation structure and the second ventilation structure. In addition, the invention greatly reduces the temperature of the deep groove ball bearing and the encoder 8 which are most easy to concentrate heat of the motor, so that the temperature of the whole motor is more balanced, the condition that the service life of the bearing and the encoder is influenced by heat concentration is reduced, and the safety and the reliability of the product are improved.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (8)
1. A novel elevator outer rotor traction machine motor with a ventilation structure comprises a stator casing and a rotor bracket; the rotating shaft of the rotor bracket is rotatably connected with the stator shell through a bearing to form a motor structure; the rotor support is characterized in that a first ventilation structure arranged axially is arranged around the periphery of a rotating shaft of the rotor support, and gas can circulate along the first ventilation structure axially;
and a second ventilation structure is axially arranged on the stator casing.
2. The novel outer rotor traction machine motor with the ventilation structure for the elevator, which is disclosed by claim 1, is characterized in that: the first ventilation structure and the second ventilation structure are all a plurality of axial ventilation holes.
3. The novel outer rotor traction machine motor with the ventilation structure for the elevator, which is disclosed by claim 1, is characterized in that: and the rotor bracket is rotatably connected with the stator casing through a deep groove ball bearing and a self-aligning roller bearing.
4. The novel outer rotor traction machine motor with the ventilation structure for the elevator, which is disclosed by claim 1, is characterized in that: the stator core is fixed in the stator casing.
5. The novel outer rotor traction machine motor with the ventilation structure for the elevator as claimed in claim 4, wherein: the stator core is embedded in the permanent magnet.
6. The novel outer rotor traction machine motor with a ventilation structure for the elevator as claimed in claim 1 or 3, wherein: the stator casing is provided with a rotating shaft sleeve matched with the rotating shaft of the rotor support, and when the rotor support is matched and connected with the stator casing, the rotating shaft is arranged in the rotating shaft sleeve.
7. The novel outer rotor traction machine motor with the ventilation structure for the elevator as claimed in claim 6, wherein: the rotating shaft of the rotor support is of a funnel-shaped structure with one wide end and one narrow end, the narrow part of the funnel-shaped structure is rotatably connected with the rotating shaft sleeve through a deep groove ball bearing, and the wide part of the funnel-shaped structure is rotatably connected with the rotating shaft sleeve through a self-aligning roller bearing; when the rotating shaft is positioned in the rotating shaft sleeve, the ventilation structure is positioned in the rotating shaft sleeve.
8. The novel outer rotor traction machine motor with a ventilation structure for the elevator as claimed in claim 7, wherein: and a ventilating hood is arranged outside the rotating shaft sleeve of the stator casing, a plurality of ventilation holes along the axial direction are separated between the shaft sleeve and the ventilating hood, and a passing structure II is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020176717.2U CN211508749U (en) | 2020-02-18 | 2020-02-18 | Novel elevator outer rotor traction machine motor with ventilation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020176717.2U CN211508749U (en) | 2020-02-18 | 2020-02-18 | Novel elevator outer rotor traction machine motor with ventilation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211508749U true CN211508749U (en) | 2020-09-15 |
Family
ID=72401783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020176717.2U Expired - Fee Related CN211508749U (en) | 2020-02-18 | 2020-02-18 | Novel elevator outer rotor traction machine motor with ventilation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211508749U (en) |
-
2020
- 2020-02-18 CN CN202020176717.2U patent/CN211508749U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20200915 Termination date: 20220218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |