CN211239486U - Disc type motor rotor structure - Google Patents
Disc type motor rotor structure Download PDFInfo
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- CN211239486U CN211239486U CN202020140928.0U CN202020140928U CN211239486U CN 211239486 U CN211239486 U CN 211239486U CN 202020140928 U CN202020140928 U CN 202020140928U CN 211239486 U CN211239486 U CN 211239486U
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Abstract
The utility model discloses a disk type motor rotor structure, which comprises a rotor disk with a plurality of radial ribs distributed in an annular array in the radial direction, wherein the radial ribs are provided with mounting bosses, the outer ends of all the radial ribs are connected with a snap ring together, and the snap ring is provided with a groove matched with the mounting bosses; and magnetic steel is arranged between adjacent radiation ribs, and the side surface of the magnetic steel is provided with a limiting structure matched with the radiation ribs. The utility model has the advantages that the limiting structure can adopt a lug clamping groove matching structure, a pin matching structure and the like, aims to provide the limiting between the radiation rib and the magnetic steel, and does not limit the specific shape; the clamping ring and the radiation rib can adopt clamping, bonding and other modes; through this application radiation muscle can effectually bear the magnetic pull and the moment of torsion of magnet steel through limit structure, the centrifugal force of magnet steel under the high-speed state can be offset to the snap ring, and the ordinary processing of work piece precision can accomplish in this application, and the assembly is simple, and is with low costs, the dependable performance.
Description
Technical Field
The utility model belongs to the technical field of permanent magnet disc motor, specifically a disc motor rotor structure.
Background
The magnetic steel of the disc type permanent magnet motor is generally arranged on the rotor, and the fixation of the magnetic steel of the rotor of the disc type permanent magnet motor is always difficult. This has greatly limited the development of disc-type permanent magnet motors. The magnetic steel fixing structure of the disc type permanent magnet motor can influence the production and processing progress of the whole rotor and the magnetic flux rate of the surface of the rotor, and further influences the performance of the whole motor and the popularization and application of the disc type magnetic flux motor.
Chinese patent document CN208923940U discloses "a rotor structure and a disc motor" in 2019, 5 and 31, which includes: a holder provided with a plurality of card slots arranged in a circumferential direction; a plurality of magnetic steels clamped in the clamping grooves; and the reinforcing ring is sleeved on the retainer, and fixing glue is arranged among the retainer, the magnetic steel and the reinforcing ring. It has the following disadvantages: 1. the rotor is fixed by gluing, and due to the colloid medium existing among the components, when the rotor rotates to generate heat, the colloid easily causes uneven heat generation and rotor damage; 2. there is not limit structure between beaded finish and the holder, can't guarantee the installation accuracy of beaded finish and holder, still need carry out the grinding process after the installation and guarantee the flatness of beaded finish and holder, influence the structural stability of rotor easily, assembly cost is high, and assembly efficiency is low.
Disclosure of Invention
Based on the problem, the utility model provides a disk motor rotor structure can improve the fashioned efficiency of rotor, improves the structural reliability of rotor, makes things convenient for the rotor assembly, reduces the assembly degree of difficulty, and the stable performance is applicable to batch production.
Another object of the present invention is to reduce the thermal influence of the rotor and improve the performance stability of the rotor.
In order to realize the purpose of the invention, the utility model adopts the following technical scheme: a disc type motor rotor structure comprises a rotor disc, wherein a plurality of radiation ribs are distributed on the rotor disc in an annular array mode in the radial direction, mounting bosses are arranged on the radiation ribs, the outer ends of all the radiation ribs are connected with a clamping ring together, and grooves matched with the mounting bosses are formed in the clamping ring; and magnetic steel is arranged between adjacent radiation ribs, and the side surface of the magnetic steel is provided with a limiting structure matched with the radiation ribs.
In the application, the limiting structure can adopt a lug and clamping groove matching structure, a pin matching structure and the like, aims to provide limiting between the radiation rib and the magnetic steel, and does not limit the specific shape; the clamping ring and the radiation rib can adopt clamping, bonding and other modes; through this application radiation muscle can effectually bear the magnetic pull and the moment of torsion of magnet steel through limit structure, the centrifugal force of magnet steel under the high-speed state can be offset to the snap ring, and the ordinary processing of work piece precision can accomplish in this application, and the assembly is simple, and is with low costs, the dependable performance.
Preferably, the limiting structure comprises clamping grooves located on two opposite side faces of the radiation rib, and the side faces of the magnetic steel are provided with protruding strips matched with the clamping grooves. Through draw-in groove and sand grip cooperation, realize the stable fixed of magnet steel.
Preferably, the mounting boss is located on the end face of the radiation rib, a groove matched with the mounting boss is formed in the inner ring of the clamping ring facing the rotor disc, and the clamping ring and the mounting boss are fixed through fastening screws. The mounting boss is clamped with the groove, so that the mounting and fixing of the clamping ring are facilitated, and the assembly efficiency is improved; the snap ring is automatically aligned with the rotor disc after being assembled, so that the flatness is ensured; compared with a bonding mode, the screw fixation is less affected by heat, and the stability of the rotor operation can be kept.
Preferably, the fastening screw is a socket head cap screw. The fixing is convenient, and the integral appearance of the rotor cannot be influenced.
Preferably, one side of the mounting boss is coplanar with the side face of the radiation rib; the height of the mounting boss is 1/2 of the height of the radiation rib, and the heights of the radiation rib, the magnetic steel and the snap ring are equal. The setting of boss and the installation of snap ring are conveniently installed, and the wholeness after the rotor shaping is good.
Preferably, the diameter of the outer peripheral surface of the snap ring is larger than the diameter of the circular surface on which the end surface of the mounting boss is located. The mounting boss can be coated after the clamping ring is connected with the radiation rib, so that the magnetic steel is limited, and the reliability of the mounting boss can be improved.
Preferably, the convex strip is positioned in the middle of the side surface of the magnetic steel. Thereby the sand grip forms the spacing of cladding sand grip both sides when cooperating with the draw-in groove, guarantees that the magnet steel is fixed reliably.
Preferably, an inwards concave transition arc surface is arranged between the mounting boss and the radiation rib; the distance between the two groove bottoms of the clamping grooves on the two sides of the radiating ribs is equal to the width of the mounting boss. The stress is reduced, the stress of the mounting boss can be stably conducted along the radiation rib, the clamping groove cannot be influenced, and the reliability of the limiting structure is ensured.
To sum up, the beneficial effects of the utility model are that: the precision of the workpiece can be realized by common processing, the assembly is simple, the cost is low, and the performance is reliable; the efficiency of rotor molding can be improved, the structural reliability of the rotor is improved, the rotor is convenient to assemble, the assembly difficulty is reduced, and the rotor molding die is suitable for batch production; the integrity of the rotor is good; little influence by heat and stable performance.
Drawings
Fig. 1 is an exploded view of the present invention.
Fig. 2 is an appearance schematic diagram after the present invention is assembled.
Fig. 3 is a schematic structural view of a rotor disk with radial ribs for use in the present invention.
Fig. 4 is a schematic structural diagram of the magnetic steel used in the present invention.
Fig. 5 is a schematic structural view of a snap ring used in the present invention.
Wherein: the radial rib 11 of the rotor disc 1 is provided with a boss 12, a clamping groove 13, a transition arc surface 14, a magnetic steel 2 convex strip 21, a clamping ring 3 and a groove 31, and the screw 4 is fastened.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 to 5, the embodiment is a rotor structure of a disc-type motor, and includes a rotor disc 1 with a plurality of radial ribs 11 distributed in an annular array in a radial direction, wherein the radial ribs 11 are provided with mounting bosses 12, the outer ends of all the radial ribs 11 are connected with a snap ring 3 together, and the snap ring 3 is made of steel. The clamping ring 3 is provided with a groove 31 matched with the mounting boss 12; and a magnetic steel 2 is arranged between the adjacent radiation ribs 11, and a limiting structure matched with the radiation ribs 11 is arranged on the side surface of the magnetic steel 2. The limiting structure comprises clamping grooves 13 located on two opposite side faces of the radiating rib 11, and protruding strips 21 matched with the clamping grooves 13 are arranged on the side faces of the magnetic steel 2. The convex strip 21 is positioned in the middle of the side surface of the magnetic steel 2. The mounting boss 12 is located on the end face of the radiation rib 11, the inner ring of the clamping ring 3 facing the rotor disc 1 is provided with a groove 31 matched with the mounting boss 12, and the clamping ring 3 and the mounting boss 12 are fixed through a fastening screw 4. The clamping ring 3 has the functions of fixing the magnetic steel 2 and protecting the magnetic steel 2. The fastening screw 4 is a hexagon socket countersunk head screw. One side of the mounting boss 12 is coplanar with the side surface of the radiation rib 11; the height of the mounting boss 12 is 1/2 of the height of the radiation rib 11, and the heights of the radiation rib 11, the magnetic steel 2 and the snap ring 3 are all equal. An inward concave transition cambered surface 14 is arranged between the mounting boss 12 and the radiation rib 11; the distance between the two groove bottoms of the clamping grooves 13 on the two sides of the radiating rib 11 is equal to the width of the mounting boss 12. The diameter of the outer peripheral surface of the snap ring 3 is larger than the diameter of the circular surface where the end surface of the mounting boss 12 is located. The diameter of the outer peripheral surface of the snap ring 3 is 3 mm larger than that of the circular surface where the end surface of the mounting boss 12 is located.
During assembly, magnetic steel 2 enters the rotor disc 1 through the matched clamping of the raised strips 21 along the clamping grooves 13 and is installed in place, then the clamping ring 3 is matched with the groove 31 through the installation boss 12, the pre-fixing of the clamping ring 3 is completed, and then the final assembly of the rotor can be completed only by screwing and fixing the clamping ring 3 and the installation boss 12 through the fastening screw 4; the precision of the workpiece can be realized by common processing, and the cost is low; the efficiency of rotor molding can be improved, the structural reliability of the rotor is improved, and the integrity of the rotor molding is good; little influence by heat and stable performance.
Claims (8)
1. A disc type motor rotor structure is characterized by comprising a rotor disc, wherein a plurality of radiation ribs are distributed on the rotor disc in an annular array manner in the radial direction, mounting bosses are arranged on the radiation ribs, the outer ends of all the radiation ribs are connected with a clamping ring together, and grooves matched with the mounting bosses are arranged on the clamping ring; and magnetic steel is arranged between adjacent radiation ribs, and the side surface of the magnetic steel is provided with a limiting structure matched with the radiation ribs.
2. The rotor structure of a disc motor according to claim 1, wherein the position limiting structure comprises locking grooves on opposite sides of the radial rib, and the sides of the magnetic steel are provided with raised strips matching the locking grooves.
3. The rotor structure of a disc type motor according to claim 1, wherein the mounting bosses are provided on end surfaces of the radial ribs, the inner ring of the snap ring facing the rotor disc is provided with grooves for fitting the mounting bosses, and the snap ring and the mounting bosses are fixed by fastening screws.
4. A rotor structure of a disc type motor according to claim 3, wherein said fastening screw is a socket head cap screw.
5. A rotor structure of a disc type motor according to claim 1 or 3, wherein one side of the mounting boss is coplanar with the side of the radiation rib; the height of the mounting boss is 1/2 of the height of the radiation rib, and the heights of the radiation rib, the magnetic steel and the snap ring are equal.
6. A rotor structure of a disc type motor according to claim 3 or 4, wherein the diameter of the outer circumferential surface of said snap ring is larger than the diameter of the circular surface on which the end surface of said mounting boss is located.
7. A rotor structure of a disc motor according to claim 2, wherein said rib is located at a middle position of the side surface of the magnetic steel.
8. A rotor structure of a disc type motor according to claim 1 or 3, wherein an inward concave transition arc surface is provided between the mounting boss and the radiation rib; the distance between the two groove bottoms of the clamping grooves on the two sides of the radiating ribs is equal to the width of the mounting boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020140928.0U CN211239486U (en) | 2020-01-21 | 2020-01-21 | Disc type motor rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020140928.0U CN211239486U (en) | 2020-01-21 | 2020-01-21 | Disc type motor rotor structure |
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| Publication Number | Publication Date |
|---|---|
| CN211239486U true CN211239486U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020140928.0U Active CN211239486U (en) | 2020-01-21 | 2020-01-21 | Disc type motor rotor structure |
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| Country | Link |
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| CN (1) | CN211239486U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112018916A (en) * | 2020-08-24 | 2020-12-01 | 上海盘毂动力科技股份有限公司 | Rotor structure of disk motor |
| CN113014012A (en) * | 2021-02-09 | 2021-06-22 | 苏蓉 | Rotor assembly and disc type motor |
| CN113541359A (en) * | 2021-08-05 | 2021-10-22 | 浙江盘毂动力科技有限公司 | Anti-falling rotor disc of disc type motor |
| WO2022041583A1 (en) * | 2020-08-24 | 2022-03-03 | 上海盘毂动力科技股份有限公司 | Rotor structure of disc motor |
-
2020
- 2020-01-21 CN CN202020140928.0U patent/CN211239486U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112018916A (en) * | 2020-08-24 | 2020-12-01 | 上海盘毂动力科技股份有限公司 | Rotor structure of disk motor |
| CN112018916B (en) * | 2020-08-24 | 2021-06-25 | 上海盘毂动力科技股份有限公司 | Rotor structure of disk motor |
| WO2022041583A1 (en) * | 2020-08-24 | 2022-03-03 | 上海盘毂动力科技股份有限公司 | Rotor structure of disc motor |
| CN113014012A (en) * | 2021-02-09 | 2021-06-22 | 苏蓉 | Rotor assembly and disc type motor |
| CN113541359A (en) * | 2021-08-05 | 2021-10-22 | 浙江盘毂动力科技有限公司 | Anti-falling rotor disc of disc type motor |
| CN113541359B (en) * | 2021-08-05 | 2022-11-15 | 浙江盘毂动力科技有限公司 | Anti-falling rotor disc of disc type motor |
| WO2023010654A1 (en) * | 2021-08-05 | 2023-02-09 | 浙江盘毂动力科技有限公司 | Anti-disengaging rotor disc of disc-type motor |
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