CN214506705U - Connecting structure of hollow shaft rotor - Google Patents
Connecting structure of hollow shaft rotor Download PDFInfo
- Publication number
- CN214506705U CN214506705U CN202023212926.7U CN202023212926U CN214506705U CN 214506705 U CN214506705 U CN 214506705U CN 202023212926 U CN202023212926 U CN 202023212926U CN 214506705 U CN214506705 U CN 214506705U
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- rotor
- rotor shaft
- shaft
- hole
- mandrel
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Abstract
The utility model discloses a connection structure of hollow shaft rotor, including rotor shaft and rotor stromatolite, its characterized in that: the rotor shaft is a hollow shaft with a through inner hole in the axis, a rotor lamination is fixedly sleeved on the outer circumference of the middle section of the rotor shaft, a circle of through holes are uniformly formed in the circumference of one end of the rotor shaft, a system mandrel provided by the system penetrates through the inner hole of the rotor shaft, the shaft body of the system mandrel is in clearance fit with the inner hole of the rotor shaft, a threaded hole is formed in the position, corresponding to the through hole, of the system mandrel, and a screw penetrates through the through hole to be connected with the threaded hole so that the rotor shaft is in locking connection with the system mandrel. Because the rotor shaft is arranged to be of a hollow sleeve structure, the circle of through holes arranged at the end part of the rotor shaft can be matched with the system mandrel to lock the system mandrel at multiple positions, the reliability of connection between the rotor shaft and the system mandrel is guaranteed, the coaxial connection is guaranteed, and the service life of the whole rotary differential transformer is prolonged.
Description
Technical Field
The utility model belongs to a part in the rotary differential transformer, concretely relates to connection structure of hollow shaft rotor.
Background
The rotary differential transformer is widely applied to various fields such as an aerometer, an automatic control system and the like as an angular displacement sensor, and the rotary differential transformer is connected with the system through a rotor of the rotary differential transformer to realize the function of the rotary differential transformer. At present, rotors of rotary differential transformers are mostly solid structures, and the shapes of the rotors mainly take cylindrical shapes as shown in fig. 1 and fig. 2. The rotor of this solid construction is connected to the system via a rotor shaft. And the rotor shaft is connected with the system through connecting structures at two ends. When the connecting end of the rotor shaft is cylindrical, the system is clamped to the end of the rotor shaft by soft claws, as shown in fig. 1. However, the connection structure has a slip risk, cannot bear large vibration and impact, and the soft claw and the rotor shaft are difficult to maintain high coaxiality, which affects the precision of the product. As shown in fig. 2, when the connection end of the rotor shaft is a cylinder milled with a flat surface, the system is provided with a D-shaped hole capable of being adapted, and then connected with the system in a manner of tightening with a jackscrew. However, the connection structure enables the rotor shaft end to bear single-point pressure of the jackscrew, and the problem of uneven stress of the rotor shaft is caused. In addition, a clearance inevitably exists between the rotor and the D-shaped hole, and under the mechanical environment of large vibration, impact and the like, the rotor shaft has the risk of deformation and even breakage, so that the product fails.
Disclosure of Invention
In view of this, the utility model provides a hollow shaft rotor's connection structure improves the reliability of being connected with the system.
The utility model adopts the technical proposal that: the utility model provides a connection structure of hollow shaft rotor, includes rotor shaft and rotor stromatolite, its characterized in that: the rotor shaft is a hollow shaft with a through inner hole in the axis, a rotor lamination is fixedly sleeved on the outer circumference of the middle section of the rotor shaft, a circle of through holes are uniformly formed in the circumference of one end of the rotor shaft, a system mandrel provided by the system penetrates through the inner hole of the rotor shaft, the shaft body of the system mandrel is in clearance fit with the inner hole of the rotor shaft, a threaded hole is formed in the position, corresponding to the through hole, of the system mandrel, and a screw penetrates through the through hole to be connected with the threaded hole so that the rotor shaft is in locking connection with the system mandrel.
Further, the through hole is a waist-shaped hole.
Further, the number of the through holes is 4.
Furthermore, a flat surface is milled on the circumferential surface of the rotor shaft where the through hole is located.
Furthermore, the system mandrel is provided with a threaded hole at the corresponding position where the through hole is fixed.
The utility model has the advantages that: because the rotor shaft is arranged to be of a hollow sleeve structure, the circle of through holes arranged at the end part of the rotor shaft can be matched with the system mandrel to lock the system mandrel at multiple positions, the reliability of connection between the rotor shaft and the system mandrel is guaranteed, the coaxial connection is guaranteed, and the service life of the whole rotary differential transformer is prolonged.
Drawings
Fig. 1 is a schematic structural view of a conventional solid rotor.
Fig. 2 is a schematic structural view of another conventional solid rotor.
Fig. 3 is a schematic structural view of the rotor shaft of the present invention.
Fig. 4 is a schematic view of the assembly of the present invention with a system mandrel.
In the figure: 1. rotor shaft, 2, rotor lamination, 3, through hole, 4, flat surface, 5, screw, 6, system mandrel, 7, screw hole.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 3, a hollow shaft rotor coupling structure includes a rotor shaft 1 and a rotor lamination 2. The rotor shaft 1 is a hollow shaft having a through bore in the axial center. The rotor lamination 2 is formed by laminating a plurality of rotor laminations. The rotor lamination 2 is fixedly sleeved on the outer circumference of the middle section of the rotor shaft 1.
In order to be able to connect firmly to the system spindle 6, a ring of through-holes 3 is provided uniformly around the circumference of one end of the rotor shaft 1, as shown in fig. 3 and 4. The number of the through holes 3 may be set to 4. Likewise, the system spindle 6 is a solid shaft in order to fit a secure connection of the rotor shaft 1. The system spindle 6 passes through the inner bore of the rotor shaft 1, and the shaft body of the system spindle 6 is in clearance fit with the inner bore of the rotor shaft 1. The system mandrel 6 is provided with a threaded hole 7 at a position corresponding to the through hole 3. The connection of the system mandrel 6 and the rotor shaft 1 is realized by the threaded connection of a screw 5 passing through the through hole 3 and a threaded hole 7.
In order to make the screw 5 closely contact with the rotor shaft 1 during locking, the reliability of locking is improved. A flat surface 4 is milled out of the circumferential surface of the rotor shaft 1 on which the through-hole 3 is located, as shown in fig. 4.
In order to enable fine adjustment of the rotor shaft 1 on the system spindle 6, the through-hole 3 is provided as a kidney-shaped hole.
Claims (5)
1. The utility model provides a connection structure of hollow shaft rotor, includes rotor shaft and rotor stromatolite, its characterized in that: the rotor shaft is a hollow shaft with a through inner hole in the axis, a rotor lamination is fixedly sleeved on the outer circumference of the middle section of the rotor shaft, a circle of through holes are uniformly formed in the circumference of one end of the rotor shaft, a system mandrel provided by the system penetrates through the inner hole of the rotor shaft, the shaft body of the system mandrel is in clearance fit with the inner hole of the rotor shaft, a threaded hole is formed in the position, corresponding to the through hole, of the system mandrel, and a screw penetrates through the through hole to be connected with the threaded hole so that the rotor shaft is in locking connection with the system mandrel.
2. A hollow shaft rotor connecting structure as set forth in claim 1, wherein: the through hole is a waist-shaped hole.
3. A hollow shaft rotor connecting structure as set forth in claim 1, wherein: the number of the through holes is 4.
4. A hollow shaft rotor connecting structure as set forth in claim 1, wherein: and a flat surface is milled on the circumferential surface of the rotor shaft where the through hole is located.
5. A hollow shaft rotor connecting structure as set forth in claim 1, wherein: and the system mandrel is provided with a threaded hole at the corresponding position fixed by the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023212926.7U CN214506705U (en) | 2020-12-28 | 2020-12-28 | Connecting structure of hollow shaft rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023212926.7U CN214506705U (en) | 2020-12-28 | 2020-12-28 | Connecting structure of hollow shaft rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214506705U true CN214506705U (en) | 2021-10-26 |
Family
ID=78210837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023212926.7U Active CN214506705U (en) | 2020-12-28 | 2020-12-28 | Connecting structure of hollow shaft rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214506705U (en) |
-
2020
- 2020-12-28 CN CN202023212926.7U patent/CN214506705U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |