CN117855984A - Radial nested rotary electric transmission device of power signal rolling ring - Google Patents
Radial nested rotary electric transmission device of power signal rolling ring Download PDFInfo
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- CN117855984A CN117855984A CN202311798865.2A CN202311798865A CN117855984A CN 117855984 A CN117855984 A CN 117855984A CN 202311798865 A CN202311798865 A CN 202311798865A CN 117855984 A CN117855984 A CN 117855984A
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- rolling
- electric transmission
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- 238000005096 rolling process Methods 0.000 title claims abstract description 103
- 230000005540 biological transmission Effects 0.000 title claims abstract description 83
- 230000008054 signal transmission Effects 0.000 claims abstract description 6
- 230000003068 static effect Effects 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 description 9
- 238000005299 abrasion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
A radial nested rotary electric transmission device of a power signal rolling ring comprises a shell, a power rolling electric transmission assembly, a signal rolling electric transmission assembly, an inner ring connecting piece, an outer ring connecting piece, a bearing and the like. The power rolling electric transmission assembly is composed of main parts such as a power inner conductive ring, a power outer conductive ring, a power flexible ring, an idler wheel, a power inner insulating layer, a power outer insulating layer and the like; the signal rolling electric transmission assembly is composed of main parts such as a signal inner conductive ring, a signal outer conductive ring, a signal flexible ring, a signal inner insulating layer, a signal outer insulating layer and the like. The power rolling electric transmission assembly and the signal rolling electric transmission assembly are coaxially installed, an outer conductive ring part of the power rolling electric transmission assembly and an outer conductive ring part of the signal rolling electric transmission assembly are connected through an outer ring connecting piece, and an inner conductive ring shaft body of the power rolling electric transmission assembly and an inner conductive ring shaft body part of the signal rolling electric transmission assembly are connected through an inner ring connecting piece, so that power and signal transmission from a static end to a rotating end is realized.
Description
Technical field:
the invention relates to the field of electric rotation transmission, in particular to a radial nested rotary electric transmission device of a power signal rolling ring.
The background technology is as follows:
the rotary electric transmission device can realize electric energy and signal transmission between two parts which rotate by n multiplied by 360 degrees, and is generally composed of a rotating part, a fixed part, a bearing, a structural part and the like, and is mainly applied to the fields of aerospace, wind power generation, medical equipment and the like which need to transmit electric signals.
With the continuous development of aerospace industry in China, the requirements of spacecraft on high-power, long-service-life and high-reliability equipment are continuously increased, and further the power, the service life and the like of space electric transmission are urgently needed to be improved. On the premise of ensuring the safety and stability of electric transmission, the development trend of the rotary electric transmission device is to improve the transmission power, reduce the wear rate and prolong the service life.
The solar sailboard driving mechanism not only needs to transmit high-voltage and high-current electric power, but also transmits multichannel small-voltage electric signals, however, the size and the weight of internal equipment are strictly constrained by a spacecraft, so that the traditional electric transmission assembly cannot meet the requirements of high power and long-life and high-reliability transmission of multichannel electric signals under the condition of small envelope.
The invention comprises the following steps:
the invention aims to provide a radial nested rotary electric transmission device of a power signal rolling ring so as to meet the long-life high-reliability transmission requirements of high power and multichannel electric signals under the condition of small envelope of a solar sailboard driving mechanism under a smaller envelope structure.
In order to achieve the above purpose, the technical scheme of the invention is as follows: a power signal rolling ring radial nested rotary electric transmission device, comprising: the device comprises a shell, a power rolling electric transmission assembly, a signal rolling electric transmission assembly, an inner ring connecting piece, an outer ring connecting piece, a bearing and the like. The power rolling electric transmission assembly is composed of main parts such as a power inner conductive ring, a power outer conductive ring, a power flexible ring, an idler wheel, a power inner insulating layer, a power outer insulating layer and the like; the signal rolling electric transmission assembly is composed of main parts such as a signal inner conductive ring, a signal outer conductive ring, a signal flexible ring, a signal inner insulating layer, a signal outer insulating layer and the like. The power rolling electric transmission assembly and the signal rolling electric transmission assembly are coaxially installed, an outer conductive ring part of the power rolling electric transmission assembly and an outer conductive ring part of the signal rolling electric transmission assembly are connected through an outer ring connecting piece, and an inner conductive ring shaft body of the power rolling electric transmission assembly and an inner conductive ring shaft body part of the signal rolling electric transmission assembly are connected through an inner ring connecting piece, so that power and signal transmission from a static end to a rotating end is realized.
Further, the power rolling electric transmission assembly shaft is provided with a group of face-to-face angular contact ball bearings at two ends, and the signal rolling electric transmission assembly shaft is provided with a group of deep groove ball bearings at two ends. The surface of the outer ring connecting piece is respectively contacted with the shell and the signal rolling ring outer cover, the inner ring of the contact surface is provided with a boss to prop against the two outer rings of the bearing, and the inner ring of the bearing is contacted with the convex end surfaces of the signal rolling ring shaft and the power rolling ring shaft; the two bearing inner rings at the other side are contacted with the convex end surfaces of the signal rolling ring bearing seat and the power rolling ring bearing seat, and the bearing outer rings are contacted with the power rolling ring check ring and the signal rolling ring check ring. Axial force is applied by screws to secure the two-sided bearings.
Further, loop sealing is arranged between the conducting layer in the power rolling electric transmission assembly and the bearings at the two ends;
further, the conductive inner ring and the conductive outer ring of each layer of loop in the power rolling electric transmission assembly are led out of the lead through lugs, and are connected with an external interface through routing holes distributed radially on the rolling ring shaft and the end cover.
Further, each layer of loop in the power rolling electric transmission assembly is provided with a plurality of flexible loops, and power transmission is realized through an inner conductive loop-a plurality of flexible loops and an outer conductive loop in parallel.
Further, each layer of loop conductive inner ring in the signal rolling electric transmission assembly is led out of a wire through a lug, and is connected with an external interface through a signal rolling ring shaft and a central hole of a connecting piece;
further, each layer of loop in the signal rolling electrokinetic transmission assembly is provided with a single flexible loop, and current signal transmission is realized through an inner conductive loop-flexible loop-outer conductive loop.
The invention fully exerts the characteristics of low abrasion, long service life and high transmission power of the rolling ring, utilizes the power rolling ring of the multi-flexible ring to transmit high-power electric energy, and utilizes the signal rolling ring of the single flexible ring to transmit multi-channel signals. The two are coaxially arranged, so that the separation of the power ring and the signal ring is realized, the volume of the whole device is reduced to the maximum extent, and the requirements of the spacecraft on the small-envelope high-power electric transmission device can be well met.
Description of the drawings:
fig. 1 is a schematic axial sectional view of a power signal rolling ring radial nested rotary electric transmission device of the present invention.
Fig. 2 is a schematic diagram of the radial cross-sectional structure of a power signal rolling ring radial nested rotary electric transmission device of the present invention.
The specific embodiment is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment shown in the figures is a power signal rolling ring radial nested rotary electric transmission device, wherein, 1-housing; 2-an outer ring connection; 3-angular contact ball bearings; 4-a power roller ring shaft; 5-signal roller ring shaft; 6-deep groove ball bearings; 7-a signal rolling ring housing; 8-internal positioning strips; 9-an external positioning strip; 10-a power outer insulating layer; 11-a power outer conductive ring; 12-a power flexible ring; 13-idler; 14-a power inner insulating layer; 15-a power inner conductive ring; 16-an inner seal ring; 17-an outer seal ring; 18-an outer sleeve; 19-an insulating sleeve; 20-an outer retainer ring; 21-an inner ring connection; 22-an inner sleeve; 23-an inner bearing seat; 24-an inner retainer ring; 25-an outer bearing seat; 26-a signal outer conductive ring; 27-a signal outer insulating layer; 28-an inner signal conductive loop; 29-an inner signal insulation layer; 30-positioning strips; 31-signal flexible ring.
The invention relates to a power signal rolling ring radial nested rotary electric transmission device which comprises a shell 1, a power rolling electric transmission assembly, a signal rolling electric transmission assembly, an inner ring connecting piece 21, an outer ring connecting piece 2, a bearing and the like. The power rolling electric transmission assembly is composed of main parts such as a power inner conductive ring 15, a power outer conductive ring 11, a power flexible ring 12, an idler wheel 13, a power inner insulating layer 14, a power outer insulating layer 10 and the like; the signal rolling electrical transmission assembly is composed of main parts such as a signal inner conductive ring 26, a signal outer conductive ring 28, a signal flexible ring 31, a signal inner insulating layer 29, a signal outer insulating layer 27 and the like.
Each layer of loop in the power rolling electrotransport assembly is provided with a plurality of power flexible rings 12 and idler wheels 13, and the power flexible rings and the idler wheels are radially and uniformly distributed between the power inner conductive rings 15 and the power outer conductive rings 11 in an alternating mode. The outer diameter of the power flexible ring 12 is slightly larger than the difference between the outer raceway radius of the power inner conductive ring 15 and the inner raceway radius of the power outer conductive ring 11, which is fixed between the inner and outer raceways by the resilience force of radial deformation. The plurality of power flexible rings 12 are separated by idler gears 13 to prevent interference of the power flexible rings 12 during rotation. The power inner insulating layer 14 and the power outer insulating layer 10 are axially separated between each layer of loop.
The outer side of the power rolling ring shaft 4 is radially and uniformly provided with 4 inner positioning strips 8, and the inner positioning strips 8 are matched with the power inner conductive ring 15 and the power inner insulating layer 14. 4 outer positioning strips 9 are radially and uniformly distributed on the inner side of the shell 1, and the outer positioning strips 9 are matched with a power outer conductive ring 11 and a power outer insulating layer 10.
The inner sealing ring 16 and the outer sealing ring 17 in the power rolling electric transmission assembly form loop sealing through bosses which are alternately arranged and do not interfere with each other, and the loop sealing is arranged at two ends of the conductive loop, so that abrasive dust generated in the movement process of the conductive loop is prevented from moving into a bearing gap. The inner sealing rings 16 at the two ends are respectively matched with the power roller ring shaft 4 and the outer bearing seat 25, and the outer bearing seat 25 is fixed on the power roller ring shaft 4 through screws; the outer sealing rings 17 at the two ends are respectively matched with the shell 1 and the outer shaft sleeve 18, and the outer shaft sleeve 18 is fixed on the shell 1 through screws; the outer sealing ring 17, the inner sealing ring 16 and the conductive loop are axially fixed between the power rolling ring shaft 4 and the shell 1 by the pressing force generated by the screws, so that the conductive loop of each layer is prevented from axially moving.
The outer side of the signal rolling ring shaft 5 is provided with an insulating shaft sleeve 19, and a signal inner insulating layer 29 and a signal inner conducting ring 28 are alternately and axially sleeved on the insulating shaft sleeve 19. The inner bearing seat 23 is arranged at the tail end of the signal rolling ring shaft 5 through screws, and the signal inner insulating layer 29 and the signal inner conducting ring 28 are axially fixed on the signal rolling ring shaft 5 by utilizing pressing force, so that axial movement in the movement process is prevented.
The inner ring connecting piece 21 is connected with the inner bearing seat 23 and the outer bearing seat 25 through screws, so that the rotation speed of the inner conductive ring layer shaft body of the power rolling electric transmission assembly is the same as that of the inner conductive ring layer shaft body of the signal rolling electric transmission assembly; the outer ring connecting piece 2 is connected with the power rolling ring shaft 4 and the signal rolling ring shaft 5 through screws, so that the rotation speed of the outer conductive layer of the power rolling electric transmission assembly is the same as that of the outer conductive layer of the signal rolling electric transmission assembly, and the power transmission and the signal transmission from the rotating end to the fixed end of the electric transmission device are realized.
The power rolling electric transmission assembly and the signal rolling electric transmission assembly of the radial nested electric transmission device of the power signal rolling ring are in modularized design, and can be assembled after being assembled respectively, so that the assembly is convenient to install and high in flexibility. The power rolling electric transmission component has the characteristics of low abrasion and long service life due to rolling contact, and each layer of loop is provided with a plurality of flexible rings which are connected in parallel, so that the power rolling electric transmission component is suitable for transmitting high-power current; the signal rolling electric transmission assembly also adopts a rolling contact mode, the stable contact of a single flexible ring is ensured through a U-shaped loop of the inner conductive ring and the outer conductive ring, and the stability of the contact is ensured on the premise of having low wear characteristics. The two are coaxially and radially nested together, so that the advantages and characteristics of the device are fully exerted, the space size envelope is saved, and the cost is reduced.
The above is merely a preferred embodiment of the present invention, and the present invention is not limited in any way. Any simple modification, equivalent variation and modification of the above embodiments according to the technology of the present invention substantially fall within the scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides a radial nested formula rotatory electric transmission device of power signal rolling ring which characterized in that: the device comprises a shell, a power rolling electric transmission assembly, a signal rolling electric transmission assembly, an inner ring connecting piece, an outer ring connecting piece and a bearing;
the power rolling electric transmission assembly consists of a power inner conductive ring, a power outer conductive ring, a power flexible ring, an idler wheel, a power inner insulating layer and a power outer insulating layer; the signal rolling electric transmission assembly consists of a signal inner conductive ring, a signal outer conductive ring, a signal flexible ring, a signal inner insulating layer and a signal outer insulating layer; the power rolling electric transmission assembly and the signal rolling electric transmission assembly are coaxially arranged, the outer conductive ring part of the power rolling electric transmission assembly and the outer conductive ring part of the signal rolling electric transmission assembly are connected through the outer ring connecting piece, and the inner conductive ring shaft body of the power rolling electric transmission assembly and the inner conductive ring shaft body part of the signal rolling electric transmission assembly are connected through the inner ring connecting piece, so that power and signal transmission from a static end to a rotating end is realized.
2. A power signal rolling ring radial nested rotary electric device as recited in claim 1, wherein: a pair of angle contact ball bearings are arranged between the shaft body of the power rolling electric transmission assembly and the shell, and the bearings are arranged face to face.
3. A power signal rolling ring radial nested rotary electric device as recited in claim 1, wherein: a pair of deep groove ball bearings are arranged between the shaft body of the signal rolling electric transmission assembly and the group shell.
4. A power signal rolling ring radial nested rotary electric device as recited in claim 1, wherein: each layer of conductive loop of the power rolling electric transmission assembly consists of a power inner conductive ring, a power flexible ring, idler wheels and a power outer conductive ring, wherein the flexible rings and the idler wheels are alternately arranged between the inner conductive ring and the outer conductive ring, and each layer of conductive loop comprises 10 flexible rings and 10 idler wheels.
5. A power signal rolling ring radial nested rotary electric device as recited in claim 1, wherein: 4 lug structures are uniformly distributed on the inner diameter edge of the inner conductive ring and the outer diameter edge of the outer conductive ring of the power rolling electric transmission assembly.
6. A power signal rolling ring radial nested rotary electric device as recited in claim 5, wherein: the signal rolling electric transmission assembly comprises an inner conductive ring, an outer conductive ring and a single flexible ring of each layer of conductive loop.
7. A power signal rolling ring radial nested rotary electric device as recited in claim 6, wherein: the inner diameter edge of the inner conductive ring and the outer diameter edge of the outer conductive ring of the signal rolling electric transmission assembly are respectively provided with a lug structure.
8. A power signal rolling ring radial nested rotary electric device as recited in claim 1, wherein: the outer ring connecting piece is closely contacted with the shell and the signal rolling ring outer cover, and two bosses are respectively arranged on the contact surface to prop against the two bearing outer rings.
9. A power signal rolling ring radial nested rotary electric device as recited in claim 8, wherein: the inner ring connecting piece is tightly contacted with the end surfaces of the power rolling ring shaft and the signal rolling ring bearing seat, and a plane outside the contact surface is in clearance with the inner rings of the two bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311798865.2A CN117855984A (en) | 2023-12-26 | 2023-12-26 | Radial nested rotary electric transmission device of power signal rolling ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311798865.2A CN117855984A (en) | 2023-12-26 | 2023-12-26 | Radial nested rotary electric transmission device of power signal rolling ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117855984A true CN117855984A (en) | 2024-04-09 |
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ID=90542844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311798865.2A Pending CN117855984A (en) | 2023-12-26 | 2023-12-26 | Radial nested rotary electric transmission device of power signal rolling ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117855984A (en) |
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2023
- 2023-12-26 CN CN202311798865.2A patent/CN117855984A/en active Pending
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