CN112636649A - Structure for ensuring output precision of split rotary transformer - Google Patents
Structure for ensuring output precision of split rotary transformer Download PDFInfo
- Publication number
- CN112636649A CN112636649A CN202011445206.7A CN202011445206A CN112636649A CN 112636649 A CN112636649 A CN 112636649A CN 202011445206 A CN202011445206 A CN 202011445206A CN 112636649 A CN112636649 A CN 112636649A
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- China
- Prior art keywords
- rotary transformer
- transformer mounting
- rotor
- main shaft
- shaft
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P13/00—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/18—Rotary transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
- H02P6/18—Circuit arrangements for detecting position without separate position detecting elements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The invention discloses a structure for ensuring output precision of a split rotary transformer. In the cavity that becomes mounting bracket and back lid formation soon all installed to become stator, the rotor that becomes soon and the installation axle that becomes soon, the installation axle that becomes soon is connected on the inner wall of becoming mounting bracket and back lid soon through the bearing, and the installation axle that becomes soon is connected with the main shaft through the key, and there is the clearance in the terminal surface of the installation axle that becomes soon and the terminal surface of main shaft. The rotary transformer rotor is fixed on the rotary transformer mounting shaft, and the rotary transformer stator is arranged on the periphery of the rotary transformer rotor. The rotary transformer mounting shaft and the main shaft are in floating connection, so that the influence of fluctuation generated by the main shaft on the rotary transformer rotor can be reduced, and the dynamic precision of the rotary transformer is ensured; and the rotary transformer mounting device forms a closed shell, so that the anti-interference performance of the rotary transformer is obviously enhanced.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a structure for ensuring output precision of a split rotary transformer.
Background
In recent years, with the improvement of industrial automation level and the higher and higher requirements on energy conservation and emission reduction, the high-efficiency and energy-saving permanent magnet alternating current motor is more and more widely applied. Position sensors on permanent magnet ac motors have been used as optical encoders, and in recent years, they have been rapidly replaced by rotary transformers. By using the split rotary transformer, the rotary transformer stator and rotor need to be assembled with the host respectively, and assembly errors of the stator and rotor can cause the deterioration of the rotary transformer output precision. The rotary transformer mounting structure can ensure the output precision of the split rotary transformer, and the existing split rotary transformer has the defect of low mounting precision, so that the output precision of the rotary transformer is reduced, the anti-interference capability is poor, and the reliability is low in a complex electromagnetic environment.
Disclosure of Invention
The invention aims to provide a structure for ensuring the output precision of a split rotary transformer.
The technical scheme adopted for achieving the purpose of the invention is that the structure for ensuring the output precision of the split rotary transformer comprises a main shaft, a key, a bearing I, a rotary transformer mounting frame, a rotary transformer stator, a rotary transformer rotor, a rotary transformer mounting shaft, a rear cover and a bearing II.
The two sides of the rotary transformer mounting rack are marked as the side A and the side B respectively, and a cavity S in the rotary transformer mounting rack penetrates through the side A and the side B. The main shaft is arranged on the side A of the rotary transformer mounting rack, and the rear cover is buckled on the side B of the rotary transformer mounting rack.
In rotary transformer stator, rotary transformer rotor and the installation axle of rotary transformer all installed cavity S, the installation axle of rotary transformer was connected on the inner wall of rotary transformer mounting bracket through bearing I, and the installation axle of rotary transformer was connected on the inner wall of back lid through bearing II. One end of the rotary transformer mounting shaft, which is close to the main shaft, is connected with the main shaft through a key, and a gap exists between the end surface of the rotary transformer mounting shaft and the end surface of the main shaft.
The rotary transformer rotor is sleeved and fixed on the rotary transformer mounting shaft, and the rotary transformer stator is arranged on the periphery of the rotary transformer rotor and fixed on the inner wall of the rotary transformer mounting frame.
Further, the rotary transformer rotor is fixed on the rotary transformer mounting shaft through a retaining ring.
Further, the rotary transformer stator is fixed on the inner wall of the rotary transformer mounting frame through a cylindrical pin.
Further, the rear cover is connected with the rotary transformer mounting frame through a spigot.
The invention has the beneficial effects that:
1. the device can ensure the static coaxiality between the rotary transformer rotor and the stator;
2. because the clearance between the rotary transformer mounting shaft and the main shaft belongs to floating connection, the influence of fluctuation generated by the main shaft on the rotary transformer rotor can be reduced, and the dynamic precision of the rotary transformer is ensured;
3. the resolver mounting device forms a closed housing, so that the anti-interference performance of the resolver is remarkably enhanced.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: the device comprises a main shaft 1, a key 2, a bearing I3, a rotary transformer mounting frame 4, a rotary transformer stator 5, a rotary transformer rotor 6, a rotary transformer mounting shaft 7, a retainer ring 8, a rear cover 9 and a bearing II 10.
Detailed Description
The present invention is further illustrated by the following examples, but it should not be construed that the scope of the above-described subject matter is limited to the following examples. Various substitutions and alterations can be made without departing from the technical idea of the invention and the scope of the invention is covered by the present invention according to the common technical knowledge and the conventional means in the field.
Example 1:
the embodiment discloses a structure for guaranteeing output accuracy of a split rotary transformer, which comprises a main shaft 1, a key 2, a bearing I3, a rotary transformer mounting rack 4, a rotary transformer stator 5, a rotary transformer rotor 6, a rotary transformer mounting shaft 7, a rear cover 9 and a bearing II 10.
The two sides of the rotary transformer mounting frame 4 are respectively marked as the side A and the side B, and a cavity S in the rotary transformer mounting frame 4 penetrates through the side A and the side B. The main shaft 1 is arranged on the side A of the rotary transformer mounting frame 4, the rear cover 9 is buckled on the side B of the rotary transformer mounting frame 4 through a spigot, and the concentricity of the rear cover 9 and the rotary transformer mounting frame 4 can be guaranteed.
Referring to fig. 1, the rotary transformer stator 5, the rotary transformer rotor 6 and the rotary transformer mounting shaft 7 are all mounted in the cavity S, the rotary transformer mounting shaft 7 is connected to the inner wall of the rotary transformer mounting frame 4 through a bearing I3, and the rotary transformer mounting shaft 7 is connected to the inner wall of the rear cover 9 through a bearing II 10. One end of the rotary transformer mounting shaft 7, which is close to the main shaft 1, is connected with the main shaft 1 through the key 2, and a gap exists between the end surface of the rotary transformer mounting shaft 7 and the end surface of the main shaft 1, so that the connection between the rotary transformer mounting shaft 7 and the main shaft 1 is floatable, the rotary transformer mounting shaft 7 and the main shaft 1 transmit torque through the key 2, and the relative angle and speed can be kept unchanged.
The rotary transformer rotor 6 is sleeved and fixed on the rotary transformer mounting shaft 7 through a retainer ring 8, and the rotary transformer stator 5 is arranged on the periphery of the rotary transformer rotor 6 and fixed on the inner wall of the rotary transformer mounting frame 4 through a cylindrical pin.
Example 2:
the embodiment discloses a structure for guaranteeing output accuracy of a split rotary transformer, which comprises a main shaft 1, a key 2, a bearing I3, a rotary transformer mounting rack 4, a rotary transformer stator 5, a rotary transformer rotor 6, a rotary transformer mounting shaft 7, a rear cover 9 and a bearing II 10.
The two sides of the rotary transformer mounting frame 4 are respectively marked as the side A and the side B, and a cavity S in the rotary transformer mounting frame 4 penetrates through the side A and the side B. The main shaft 1 is arranged on the side A of the rotary transformer mounting rack 4, and the rear cover 9 is buckled on the side B of the rotary transformer mounting rack 4.
Referring to fig. 1, the rotary transformer stator 5, the rotary transformer rotor 6 and the rotary transformer mounting shaft 7 are all mounted in the cavity S, the rotary transformer mounting shaft 7 is connected to the inner wall of the rotary transformer mounting frame 4 through a bearing I3, and the rotary transformer mounting shaft 7 is connected to the inner wall of the rear cover 9 through a bearing II 10. One end of the rotary transformer mounting shaft 7, which is close to the main shaft 1, is connected with the main shaft 1 through a key 2, and a gap exists between the end surface of the rotary transformer mounting shaft 7 and the end surface of the main shaft 1.
The rotary transformer rotor 6 is sleeved and fixed on the rotary transformer mounting shaft 7, and the rotary transformer stator 5 is arranged on the periphery of the rotary transformer rotor 6 and fixed on the inner wall of the rotary transformer mounting frame 4.
Example 3:
the main structure of this embodiment is the same as that of embodiment 2, and further, referring to fig. 1, the rotary transformer rotor 6 is fixed on the rotary transformer mounting shaft 7 through a retainer ring 8.
Example 4:
the main structure of this embodiment is the same as that of embodiment 3, and further, the rotational stator 5 is fixed on the inner wall of the rotational mounting frame 4 through a cylindrical pin.
Example 5:
the main structure of this embodiment is the same as embodiment 4, and further, the rear cover 9 is connected with the rotary transformer mounting frame 4 by a spigot.
Claims (4)
1. The utility model provides a guarantee structure of partial shipment formula resolver output precision which characterized in that: the device comprises a main shaft (1), a key (2), a bearing I (3), a rotary transformer mounting rack (4), a rotary transformer stator (5), a rotary transformer rotor (6), a rotary transformer mounting shaft (7), a rear cover (9) and a bearing II (10);
the two sides of the rotary transformer mounting rack (4) are respectively marked as an A side and a B side, and a cavity S in the rotary transformer mounting rack (4) penetrates through the A side and the B side; the main shaft (1) is arranged on the side A of the rotary transformer mounting rack (4), and the rear cover (9) is buckled on the side B of the rotary transformer mounting rack (4);
the rotary transformer stator (5), the rotary transformer rotor (6) and the rotary transformer mounting shaft (7) are all mounted in the cavity S, the rotary transformer mounting shaft (7) is connected to the inner wall of the rotary transformer mounting frame (4) through a bearing I (3), and the rotary transformer mounting shaft (7) is connected to the inner wall of the rear cover (9) through a bearing II (10); one end, close to the main shaft (1), of the rotary transformer mounting shaft (7) is connected with the main shaft (1) through a key (2), and a gap exists between the end face of the rotary transformer mounting shaft (7) and the end face of the main shaft (1);
the rotary transformer rotor (6) is sleeved and fixed on the rotary transformer mounting shaft (7), and the rotary transformer stator (5) is arranged on the periphery of the rotary transformer rotor (6) and fixed on the inner wall of the rotary transformer mounting frame (4).
2. The structure for ensuring the output accuracy of the split charging type rotary transformer according to claim 1, wherein: the rotary transformer rotor (6) is fixed on the rotary transformer mounting shaft (7) through a retainer ring (8).
3. The structure for ensuring the output accuracy of the split rotary transformer according to claim 1 or 2, wherein: the rotary transformer stator (5) is fixed on the inner wall of the rotary transformer mounting frame (4) through a cylindrical pin.
4. The structure for ensuring the output accuracy of the split rotary transformer as claimed in claim 2 or 3, wherein: the rear cover (9) is connected with the rotary transformer mounting rack (4) through a spigot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011445206.7A CN112636649A (en) | 2020-12-08 | 2020-12-08 | Structure for ensuring output precision of split rotary transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011445206.7A CN112636649A (en) | 2020-12-08 | 2020-12-08 | Structure for ensuring output precision of split rotary transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112636649A true CN112636649A (en) | 2021-04-09 |
Family
ID=75309581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011445206.7A Pending CN112636649A (en) | 2020-12-08 | 2020-12-08 | Structure for ensuring output precision of split rotary transformer |
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| Country | Link |
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| CN (1) | CN112636649A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113315314A (en) * | 2021-05-17 | 2021-08-27 | 苏州中固维科动力技术有限公司 | Vacuum stepping motor with rotary transformer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09314404A (en) * | 1996-05-28 | 1997-12-09 | Nippon Seiko Kk | Spindle device |
| JP2004176628A (en) * | 2002-11-27 | 2004-06-24 | Yamaha Motor Co Ltd | Shaft support structure for engine component |
| CN201761987U (en) * | 2010-06-13 | 2011-03-16 | 日立电梯（中国）有限公司 | Position detecting device for elevator cage |
| CN106643818A (en) * | 2016-07-11 | 2017-05-10 | 北京航空航天大学 | Multiple-angle position indication sensor |
| CN108429410A (en) * | 2018-04-28 | 2018-08-21 | 合肥巨动力系统有限公司 | A kind of rotation change mounting structure of motor hollow rotating shaft |
| CN211287950U (en) * | 2019-12-30 | 2020-08-18 | 重庆华能水电设备制造有限公司 | Oil mist overflow preventing structure for oil groove main shaft of hydraulic generator |
-
2020
- 2020-12-08 CN CN202011445206.7A patent/CN112636649A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09314404A (en) * | 1996-05-28 | 1997-12-09 | Nippon Seiko Kk | Spindle device |
| JP2004176628A (en) * | 2002-11-27 | 2004-06-24 | Yamaha Motor Co Ltd | Shaft support structure for engine component |
| CN201761987U (en) * | 2010-06-13 | 2011-03-16 | 日立电梯（中国）有限公司 | Position detecting device for elevator cage |
| CN106643818A (en) * | 2016-07-11 | 2017-05-10 | 北京航空航天大学 | Multiple-angle position indication sensor |
| CN108429410A (en) * | 2018-04-28 | 2018-08-21 | 合肥巨动力系统有限公司 | A kind of rotation change mounting structure of motor hollow rotating shaft |
| CN211287950U (en) * | 2019-12-30 | 2020-08-18 | 重庆华能水电设备制造有限公司 | Oil mist overflow preventing structure for oil groove main shaft of hydraulic generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113315314A (en) * | 2021-05-17 | 2021-08-27 | 苏州中固维科动力技术有限公司 | Vacuum stepping motor with rotary transformer |
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