CN114203390B - Installation and wiring structure of multipolar rotary transformer - Google Patents
Installation and wiring structure of multipolar rotary transformer Download PDFInfo
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- CN114203390B CN114203390B CN202111306368.7A CN202111306368A CN114203390B CN 114203390 B CN114203390 B CN 114203390B CN 202111306368 A CN202111306368 A CN 202111306368A CN 114203390 B CN114203390 B CN 114203390B
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- rotating shaft
- outgoing line
- rotary transformer
- outer frame
- multipolar
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- 238000009434 installation Methods 0.000 title description 3
- 238000000034 method Methods 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims 1
- 230000035515 penetration Effects 0.000 abstract 2
- 230000005405 multipole Effects 0.000 description 10
- 230000000087 stabilizing effect Effects 0.000 description 9
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The invention provides a mounting and wiring structure of a multipolar rotary transformer.A rotating shaft is mounted in a central hole of an outer frame and can rotate in the inner frame, an outer coil is fixedly mounted on the outer frame through an outer ring bracket, an inner coil is mounted in a matched manner with the rotating shaft, an outer ring outgoing line and an inner ring outgoing line are led out from the exposed side surfaces, the outer ring outgoing line of the multipolar rotary transformer is directly routed along the outer frame after being bent, the inner ring outgoing line penetrates into the central hole of the rotating shaft after being bent, is converged with an inner ring outgoing line of a stable platform after being bent again, penetrates out of the central hole of the rotating shaft together, and is directly routed along the outer frame after being bent; through the one-time penetration of the inner ring outgoing line and the one-time penetration of the rotating shaft, the root wiring of the inner ring outgoing line, the wiring in the central shaft and the wiring at the outer frame are prevented from being deformed and elongated by stress during rotation, and the required length among the root wiring of the inner ring outgoing line, the wiring in the central shaft and the wiring at the base is unchanged along with the increase of the rotating angle of the rotating shaft, so that the damage and fracture problem of the inner ring outgoing line are effectively avoided.
Description
Technical Field
The invention relates to an installation and wiring structure of a multipole rotary transformer, and belongs to the technical field of high-precision stable platforms.
Background
The high-precision stable platform generally comprises a frame, a rotary shaft system, a load, a driving motor, an angle sensor, a gyroscope and the like, and a multipole rotary transformer is often selected as the angle sensor in order to meet the high-precision angle measurement requirement. The multipolar rotary transformer consists of an outer ring and an inner ring, the outer ring is generally fixed on a base of the stabilizing platform by adopting a screw or a pressing ring along the axial direction, the inner ring is generally fixed on a moving rotating shaft of the stabilizing platform by adopting the screw or the pressing ring along the axial direction, an inner ring outgoing line of the stabilizing platform needs to penetrate through the rotating shaft and the inner ring of the multipolar rotary transformer along the center of a rotating shaft system, and then the inner ring is bent and then is wired along the base of the stabilizing platform. Because the multipolar rotary transformer inner ring is generally fixed on the motion rotating shaft of the stabilizing platform by adopting screws or pressing rings along the axial direction, in order to ensure the assembly manufacturability when the screws or the pressing rings are installed from outside to inside, the multipolar rotary transformer inner ring is required to be provided with a mounting flange in a central hole, the mounting flange is further provided with screw holes or pressing ring mounting spaces, the mounting flange occupies precious central space of a rotary shaft system, the shaft penetrating space of an inner ring outgoing line of the stabilizing platform is reduced, the nonlinear moment of the inner ring outgoing line of the stabilizing platform is increased, and even when the central through hole of the multipolar rotary transformer inner ring mounting flange is smaller than the diameter of the inner ring outgoing line of the stabilizing platform, the inner ring outgoing line of the stabilizing platform cannot penetrate out of wiring from the center of the rotary shaft system.
The outgoing lines of the multipolar rotary transformer are generally uniformly distributed on the same exposed side surfaces of the outer ring and the inner ring, and the outgoing lines of the outer ring and the outgoing lines of the inner ring of the multipolar rotary transformer are not positioned in the center of the motion rotating shaft of the stable platform because the multipolar rotary transformer adopts a hollow structure. The outer ring outgoing line of the multipolar rotary transformer does not rotate along with the motion rotating shaft of the stable platform, and can be directly wired along the base of the stable platform after being bent. If the inner ring outgoing line of the multipolar rotary transformer is bent and then directly routed along the base, the root routing of the inner ring outgoing line rotates along with the rotating shaft, the base routing of the inner ring outgoing line is fixed, the root routing of the inner ring outgoing line and the base routing can generate relative torsion movement when the rotating shaft rotates, and the inner ring outgoing line can deform and stretch under stress. Along with the increase of the rotation angle of the rotating shaft, the larger the relative torsion movement is, the longer the required length between the root wiring of the inner ring outgoing line and the wiring at the base is, and the inner ring outgoing line can be damaged or even directly broken.
The inner ring lead-out wire is damaged or broken, a slip ring is usually added in a stable platform rotary shaft system, but the use of the slip ring occupies valuable shaft system space of the stable platform, the slip ring is generally high in cost, the electrical component cost of the stable platform is high in proportion, and the use of the slip ring can greatly increase the cost of the stable platform. Meanwhile, friction moment and assembling and adjusting difficulty of a stable platform shafting can be increased by using the slip ring, and servo control difficulty is further increased.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a structure for mounting and wiring a multipolar resolver, which can avoid the problem of damage and breakage of lead wires without using a slip ring.
The mounting and wiring structure of the multipolar rotary transformer comprises an outer frame (1), a bearing (2), an outer ring bracket (3), an inner frame (4) and a rotating shaft (5);
the outer frame (1) is of a cylindrical structure with a stepped central hole, and the outer circular surface of the bearing (2) is arranged in the central hole of the outer frame (1);
The rotating shaft (5) is of a cylindrical structure with a central hole; the rotating shaft (5) coaxially extends into a central hole of the outer frame (1), the middle part of the rotating shaft is arranged in the bearing (2), and the outer circumferential surface of the other side of the rotating shaft is fixedly provided with the inner frame (4); the inner frame is driven to rotate by the outside, so that the rotating shaft (5) synchronously rotates along with the inner frame (4);
the outer ring bracket (3) is of a circular ring structure and is fixed on the side surface of the step part of the step type central hole of the outer frame (1); the outer coil (7) of the multipolar rotary transformer is arranged in the central hole of the outer frame (1) and is fixed on the outer ring bracket (3) through a flange arranged on the outer edge; the inner coil (6) of the multipolar rotary transformer is arranged at the inner side of the outer coil (7) and is fixedly connected with the end part of the rotating shaft (5) through a flange arranged on the inner coil;
The outer ring outgoing line (9) of the multipolar rotary transformer is led out from the exposed side, is directly led out along the outer frame (1) after bending, the inner ring outgoing line (8) of the multipolar rotary transformer is led out from the exposed side of the inner coil (6), the inner ring outgoing line (8) passes through a central through hole of the inner coil (6) after passing through the center Kong Shewan of the rotating shaft (5) and enters a central hole of the rotating shaft (5), is converged with the inner ring outgoing line (10) of the stable platform after being bent in the central hole again, and is led out along the central hole of the rotating shaft (5) and the central through hole of the inner coil (6) in sequence, and is led out along the outer frame (1) after being bent outside the inner coil (6).
Preferably, the inner ring outgoing line (8) is stuck on the inner ring outgoing line (10) of the stable platform.
Preferably, the inner ring outgoing line (8) is stuck on the inner ring outgoing line (10) of the stable platform by adopting silicon rubber.
Preferably, the bearing (2) is arranged on the inner circle of the step of the central hole of the outer frame (1), and the outer ring bracket (3) is axially fixed on the outer frame (1) through screws.
Preferably, the inner annular surface of the outer ring bracket (3) is tightly contacted with the side surface of the step of the central hole of the outer frame (1) and the bearing (2).
Further, the outer ring bracket (3) is provided with a bulge, and the flange of the outer coil (7) is axially fixed on the bulge of the outer ring bracket (3) through a screw III (13).
Further, a process groove is formed in the middle of a boss on the outer ring support (3), and the width and depth of the process groove are larger than the maximum outer circle diameter of the screw III (13).
Preferably, the rotating shaft (5) and the inner frame (4) are axially fixed through screws.
Preferably, a boss structure is arranged on the inner side of the inner coil (6), and the boss structure of the inner coil (6) extends into a central hole of the rotating shaft (5) and is fixed with the boss structure of the rotating shaft (5) in the radial direction through a screw.
Preferably, the middle part of the outer frame (1) is provided with a process hole.
The invention has the following beneficial effects:
The invention provides a mounting and wiring structure of a multipolar rotary transformer, wherein a rotating shaft is mounted in a central hole of an outer frame and can rotate in the inner frame, an outer coil of the multipolar rotary transformer is mounted and fixed on the outer frame of a stable platform through an outer ring bracket, an inner coil of the multipolar rotary transformer is mounted in a matched manner with the rotating shaft through a mounting boss of the multipolar rotary transformer, an outer ring outgoing line and an inner ring outgoing line are led out from the exposed side face, the outer ring outgoing line of the multipolar rotary transformer is bent and then directly wired along the outer frame, the inner ring outgoing line penetrates into the central hole of the rotating shaft after being bent, and is converged with the inner ring outgoing line of the stable platform after being bent again, and then passes out of the central hole of the rotating shaft together, and is directly wired along the outer frame after being bent; the inner ring outgoing line penetrates into and out of the rotating shaft once, so that the root wiring of the inner ring outgoing line, the central shaft inner wiring and the outer frame wiring cannot deform and stretch under stress during rotation, the required length among the root wiring of the inner ring outgoing line, the central shaft inner wiring and the base wiring is unchanged along with the increase of the rotating angle of the rotating shaft, and the damage and fracture problems of the inner ring outgoing line are effectively avoided;
According to the multi-pole rotary transformer, the boss structures are arranged on the rotating shaft and the inner ring of the multi-pole rotary transformer, the screw mounting holes are arranged on the boss, and the corresponding process structures are arranged on the outer frame and the outer ring support, so that radial mounting, fixing and dismounting of the inner ring of the multi-pole rotary transformer are realized, the central space of a rotating shaft system of a stable platform is effectively released, the shaft penetrating space of an inner ring outgoing line of the stable platform is increased, and the nonlinear moment of the inner ring outgoing line of the stable platform is reduced; and when the central through hole of the inner ring mounting flange of the multipolar rotary transformer is smaller than the diameter of the inner ring outgoing line of the stable platform, the inner ring outgoing line of the stable platform cannot penetrate out of the wiring from the center of the rotary shaft system.
The invention does not need to use a slip ring, simplifies the shafting structure, and reduces the cost and the shafting assembling and adjusting difficulty.
Drawings
FIG. 1 is a schematic cross-sectional view of a mounting and wiring structure of a multipole rotary transformer;
FIG. 2 is a schematic side view of a mounting and wiring structure of a multipole resolver (with the multipole resolver outer ring and the multipole resolver inner ring removed);
FIG. 3 is a schematic structural view of a rotating shaft;
FIG. 4 is a schematic structural view of an outer race bracket;
Fig. 5 is a schematic structural view of a multipole rotary transformer.
The device comprises a 1-outer frame, a 2-bearing, a 3-outer ring support, a 4-inner frame, a 5-rotating shaft, a 6-inner coil, a 7-outer coil, an 8-inner ring outgoing line, a 9-outer ring outgoing line, a 10-inner ring outgoing line, a 11-screw I, a 12-screw II, a 13-screw III and a 14-screw IV.
Detailed Description
The invention will now be described in detail by way of example with reference to the accompanying drawings.
As shown in fig. 1 and 2, the present invention provides a mounting and wiring structure of a multipolar rotary transformer, which includes an outer frame 1, a bearing 2, an outer ring bracket 3, an inner frame 4, a rotating shaft 5, a first screw 11, a second screw 12, a third screw 13, a fourth screw 14, and the like.
The outer frame 1 is of a cylindrical structure with a stepped center hole, and the outer circular surface of the bearing 2 is arranged in the center hole of the outer frame 1 in an interference fit manner; the rotating shaft 5 is of a cylindrical structure with a central hole, a plurality of boss structures are arranged on the end face of one side of the rotating shaft 5, counter bores are formed in the bosses, and the center line of the counter bores is perpendicular to the center axis of the rotating shaft 5; the rotating shaft 5 coaxially extends into a central hole of the outer frame 1, the middle part of the rotating shaft is arranged in the bearing 2, and an inner frame 4 is fixed on the outer circumferential surface of the other side of the rotating shaft; the inner frame is driven to rotate by the outside, and the rotating shaft 5 rotates synchronously with the inner frame 4.
The outer ring bracket 3 is of a circular ring structure and is fixed on the side surface of the step part of the step type central hole of the outer frame 1; the outer coil 7 of the multipolar rotary transformer is arranged in the central hole of the outer frame 1 and is fixed on the outer ring bracket 3 through a flange arranged on the outer edge; the inner coil 6 of the multipolar rotary transformer is arranged on the inner side of the outer coil 7 and is fixedly connected to a boss structure at the end part of the rotating shaft 5 through a flange arranged on the inner coil. When the rotary shaft 5 rotates with the inner frame, the inner coil 6 also rotates with it.
The bearing 2 is arranged on the inner circle of the step of the central hole of the outer frame 1, the inner annular surface of the outer ring bracket 3 is close to the side surface of the step of the central hole of the outer frame 1 and the bearing 2, and the outer ring bracket 3 is axially fixed on the outer frame 1 through a first screw 11; as shown in fig. 4, the outer ring bracket 3 is provided with a bulge, the boss is provided with a threaded hole, the middle part of the boss is provided with a process groove, and the width and depth dimensions of the process groove are larger than the maximum outer circle diameter of the screw III 13; the flange of the outer coil 7 is axially fixed on the bulge of the outer ring bracket 3 through a screw IV 14; the middle part of the outer frame 1 is provided with a process hole, and the diameter of the process hole is larger than the maximum diameter of the outer circle of the screw III 13.
The rotating shaft 5 and the inner frame 4 are axially fixed through a second screw 12; as shown in fig. 5, a boss structure is arranged on the inner side of the inner coil 6, a threaded hole is formed in the boss, and the center line of the threaded hole is perpendicular to the center axis of the inner coil 6; the boss structure of the inner coil 6 extends into the center hole of the rotating shaft 5 and is fixed with the boss structure of the rotating shaft 5 in the radial direction through a third screw 13.
As shown in fig. 5, the diameter of the through hole of the inner coil 6 is larger than the sum of the diameter of the inner ring outgoing line 10 plus the diameter of the inner ring outgoing line 8; the outer ring outgoing line 9 of the multipolar rotary transformer is led out from the exposed side surface, is directly routed along the outer frame 1 after bending, the inner ring outgoing line 8 of the multipolar rotary transformer is led out from the exposed side surface of the inner coil 6, the inner ring outgoing line 8 passes through the central through hole of the inner coil 6 after going to the center Kong Shewan of the rotating shaft 5, enters the central hole of the rotating shaft 5, is converged with the inner ring outgoing line 10 of the stable platform after being bent again in the central hole, is led out along the central hole of the rotating shaft 5 and the central through hole of the inner coil 6 together in sequence, is routed along the outer frame 1 after being bent outside the inner coil 6, and the inner ring outgoing line 8 in the central hole of the rotating shaft 5 is stuck on the inner ring outgoing line 10 of the stable platform by using silicon rubber.
In summary, the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The mounting and wiring structure of the multipolar rotary transformer is characterized by comprising an outer frame (1), a bearing (2), an outer ring bracket (3), an inner frame (4) and a rotating shaft (5);
the outer frame (1) is of a cylindrical structure with a stepped central hole, and the outer circular surface of the bearing (2) is arranged in the central hole of the outer frame (1);
The rotating shaft (5) is of a cylindrical structure with a central hole; the rotating shaft (5) coaxially extends into a central hole of the outer frame (1), the middle part of the rotating shaft is arranged in the bearing (2), and the outer circumferential surface of the other side of the rotating shaft is fixedly provided with the inner frame (4); the inner frame is driven to rotate by the outside, so that the rotating shaft (5) synchronously rotates along with the inner frame (4);
the outer ring bracket (3) is of a circular ring structure and is fixed on the side surface of the step part of the step type central hole of the outer frame (1); the outer coil (7) of the multipolar rotary transformer is arranged in the central hole of the outer frame (1) and is fixed on the outer ring bracket (3) through a flange arranged on the outer edge; the inner coil (6) of the multipolar rotary transformer is arranged at the inner side of the outer coil (7) and is fixedly connected with the end part of the rotating shaft (5) through a flange arranged on the inner coil;
The outer ring outgoing line (9) of the multipolar rotary transformer is led out from the exposed side, is directly led out along the outer frame (1) after bending, the inner ring outgoing line (8) of the multipolar rotary transformer is led out from the exposed side of the inner coil (6), the inner ring outgoing line (8) passes through a central through hole of the inner coil (6) after passing through the center Kong Shewan of the rotating shaft (5) and enters a central hole of the rotating shaft (5), is converged with the inner ring outgoing line (10) of the stable platform after being bent in the central hole again, and is led out along the central hole of the rotating shaft (5) and the central through hole of the inner coil (6) in sequence, and is led out along the outer frame (1) after being bent outside the inner coil (6).
2. A mounting and wiring structure of a multipolar resolver according to claim 1, characterized in that the inner ring lead (8) is attached to the stabilized platform inner ring lead (10).
3. A mounting and wiring structure of a multipolar resolver according to claim 1, characterized in that the inner ring lead-out wire (8) is stuck to the stabilized platform inner ring lead-out wire (10) using silicone rubber.
4. A mounting and wiring structure of a multipolar resolver according to claim 1, characterized in that the bearing (2) is mounted on an inner circle of a step of a center hole of the outer frame (1), and the outer ring bracket (3) is fixed to the outer frame (1) in the axial direction by screws.
5. The mounting and wiring structure of a multipolar rotary transformer according to claim 4, wherein the inner annular surface of the outer ring holder (3) is abutted against the side surface of the step of the center hole of the outer frame (1) and the bearing (2).
6. A mounting and wiring structure of a multipolar rotary transformer according to claim 1, characterized in that the outer ring bracket (3) is provided with a projection, and the flange of the outer coil (7) is axially fixed to the projection of the outer ring bracket (3) by means of a third screw (13).
7. A mounting and wiring structure for a multipolar rotary transformer according to claim 6, characterized in that the boss on the outer ring bracket (3) has a process groove in the middle, the width and depth dimensions of the process groove being greater than the maximum outer diameter of the screw three (13).
8. A mounting and wiring structure of a multipolar rotary transformer according to claim 1, characterized in that the rotary shaft (5) and the inner frame (4) are fixed in the axial direction by screws.
9. A mounting and wiring structure of a multipolar rotary transformer according to claim 1, characterized in that the inner side of the inner coil (6) is provided with a boss structure, the boss structure of the inner coil (6) extends into the center hole of the rotary shaft (5) and is fixed with the boss structure of the rotary shaft (5) in the radial direction by means of screws.
10. A mounting and wiring structure for a multipolar rotary transformer according to claim 1, characterized in that the middle part of the outer frame (1) is provided with a process hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111306368.7A CN114203390B (en) | 2021-11-05 | 2021-11-05 | Installation and wiring structure of multipolar rotary transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111306368.7A CN114203390B (en) | 2021-11-05 | 2021-11-05 | Installation and wiring structure of multipolar rotary transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114203390A CN114203390A (en) | 2022-03-18 |
| CN114203390B true CN114203390B (en) | 2024-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111306368.7A Active CN114203390B (en) | 2021-11-05 | 2021-11-05 | Installation and wiring structure of multipolar rotary transformer |
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| Country | Link |
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| CN (1) | CN114203390B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871723A (en) * | 2014-03-27 | 2014-06-18 | 西安微电机研究所 | Multi-redundancy dual-channel non-contact rotary transformer |
| CN104200967A (en) * | 2014-08-11 | 2014-12-10 | 西安航空制动科技有限公司 | Hollow rotary transformer |
| CN104426301A (en) * | 2013-09-06 | 2015-03-18 | 美蓓亚株式会社 | Bearing integrated rotary transformer and motor provided with same |
| CN106571222A (en) * | 2016-10-20 | 2017-04-19 | 国网山东省电力公司烟台供电公司 | Dedicated traction support of outgoing line of transformer winding |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11506731B2 (en) * | 2018-11-27 | 2022-11-22 | Waymo Llc | Motor and rotary transformer with shared magnetic core |
-
2021
- 2021-11-05 CN CN202111306368.7A patent/CN114203390B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426301A (en) * | 2013-09-06 | 2015-03-18 | 美蓓亚株式会社 | Bearing integrated rotary transformer and motor provided with same |
| CN103871723A (en) * | 2014-03-27 | 2014-06-18 | 西安微电机研究所 | Multi-redundancy dual-channel non-contact rotary transformer |
| CN104200967A (en) * | 2014-08-11 | 2014-12-10 | 西安航空制动科技有限公司 | Hollow rotary transformer |
| CN106571222A (en) * | 2016-10-20 | 2017-04-19 | 国网山东省电力公司烟台供电公司 | Dedicated traction support of outgoing line of transformer winding |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114203390A (en) | 2022-03-18 |
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