CN117424045A - Radial nested rotary electric transmission device - Google Patents
Radial nested rotary electric transmission device Download PDFInfo
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- CN117424045A CN117424045A CN202311434031.3A CN202311434031A CN117424045A CN 117424045 A CN117424045 A CN 117424045A CN 202311434031 A CN202311434031 A CN 202311434031A CN 117424045 A CN117424045 A CN 117424045A
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- contact ball
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 45
- 238000005096 rolling process Methods 0.000 claims abstract description 91
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 3
- 238000005299 abrasion Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 210000004746 tooth root Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/08—Slip-rings
- H01R39/12—Slip-rings using bearing or shaft surface as contact surface
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/64—Devices for uninterrupted current collection
- H01R39/643—Devices for uninterrupted current collection through ball or roller bearing
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- Rolling Contact Bearings (AREA)
Abstract
The radial nested rotary electric transmission device comprises a shell, a shaft sleeve, a rolling ring assembly, a slip ring assembly, a left end cover, a right end cover, a first angular contact ball bearing and a second angular contact ball bearing; the rolling ring assembly and the slip ring assembly are coaxially arranged in the shell, and the slip ring assembly is arranged in the rolling ring assembly; the shaft sleeve is connected with one end of the shell, and the left end cover is connected with one end of the rolling ring assembly; the right end cover is connected with the other end of the shell; the two ends of the rolling ring component are respectively provided with a first angle contact ball bearing, one first angle contact ball bearing is positioned between the shaft sleeve and the rolling ring component, and the other first angle contact ball bearing is positioned between the shell and the rolling ring component; the left end cover is connected with one end of the slip ring assembly, and the right end cover is connected with the other end of the slip ring assembly; two ends of the slip ring component are respectively provided with a second angular contact ball bearing. The invention fully exerts the characteristics of low abrasion of the rolling ring, long service life, high transmission power, stable contact of the tangential brush filament bundle slip ring and small abrasion under low load, and the two are coaxially arranged and have small volume.
Description
Technical Field
The invention relates to the field of electric rotation transmission, in particular to a radial nested rotary electric transmission device.
Background
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 for high-power, long-service-life and high-reliability equipment of a spacecraft are continuously increased, and simultaneously, the requirements for transmission power, service life and the like of space electric transmission equipment matched with the equipment are also higher. 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 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 small-voltage electric signals, however, under the condition that the spacecraft has strict control on the size of internal components, the traditional electric transmission assembly cannot simultaneously meet the transmission requirements of the electric power and the electric signals.
Disclosure of Invention
The invention aims to provide a radial nested rotary electric transmission device which meets the working requirements of a solar sailboard driving mechanism for transmitting high-power electric energy and stabilizing electric signals under the condition of smaller space.
In order to achieve the above purpose, the invention provides a radial nested rotary electric transmission device, which comprises a shell, a shaft sleeve, a rolling ring assembly, a slip ring assembly, a left end cover, a right end cover, a first angular contact ball bearing and a second angular contact ball bearing; the rolling ring assembly and the slip ring assembly are coaxially arranged in the shell, and the slip ring assembly is arranged in the rolling ring assembly; the shaft sleeve is connected with one end of the shell, and at the end, the left end cover is connected with one end of the rolling ring assembly; the right end cover is connected with the other end of the shell; the two ends of the rolling ring component are respectively provided with a first angle contact ball bearing, one first angle contact ball bearing is positioned between the shaft sleeve and the rolling ring component, and the other first angle contact ball bearing is positioned between the shell and the rolling ring component; a pair of first angular contact ball bearings each bearing-face mounted; the left end cover is connected with one end of the slip ring assembly, and the right end cover is connected with the other end of the slip ring assembly; the two ends of the slip ring assembly are respectively provided with a pair of second angular contact ball bearings, and the pair of second angular contact ball bearings are arranged face to face.
The radial nested rotary electric transmission device is characterized in that two ends of the rolling ring assembly are respectively provided with a loop seal, and the loop seals are used for preventing abrasive dust generated in the movement process of the rolling ring assembly from moving into a gap of the first angular contact ball bearing.
Above-mentioned radial nested formula rotary electric transmission device, wherein, the return circuit is sealed including outer sealing washer and interior sealing washer, interior sealing washer outside designs to rectangular tooth structure, outer sealing washer inboard also designs to rectangular tooth structure, interior sealing washer with outer sealing washer passes through rectangular tooth structure cooperation, leaves the clearance between tooth top and tooth root, tooth and the tooth.
The radial nested rotary electric transmission device comprises a rolling ring assembly, a rotary electric transmission device and a rotary electric transmission device, wherein the rolling ring assembly comprises an inner conductive ring, an outer conductive ring, an inner insulating layer, an outer insulating layer, a flexible ring, an idler wheel, a rolling ring shaft and a rolling ring bearing seat; the inner conductive ring and the inner insulating layer are sleeved on the rolling ring shaft; a plurality of inner conductive rings are arranged along the axial direction, and an inner insulating layer is arranged between any two adjacent inner conductive rings; a plurality of outer conductive rings are arranged along the axial direction, and an outer insulating layer is arranged between any two adjacent outer conductive rings; the outer conductive rings are in one-to-one correspondence with the inner conductive rings, and the outer conductive rings and the inner conductive rings corresponding to the outer conductive rings form a layer of loop; in each layer of loop, a plurality of flexible rings and a plurality of idler wheels are arranged between the outer conductive ring and the inner conductive ring, and the flexible rings and the idler wheels are alternately arranged along the circumferential direction; the rolling ring bearing seat is fixed at one end of the rolling ring shaft, and the other end of the rolling ring shaft is connected with the shell; the left end cover is fixed on the rolling ring bearing seat; one of the first angular contact ball bearings is located between the rolling ring bearing housing and the sleeve, and the other of the first angular contact ball bearings is located between the rolling ring shaft and the housing.
According to the radial nested rotary electric transmission device, the outer diameter of the flexible ring is larger than the difference between the outer diameter of the outer conductive ring and the outer diameter of the inner conductive ring, the flexible ring is fixed between the outer diameter of the inner conductive ring and the inner conductive ring through the resilience force of radial deformation, and the idler wheel separates two adjacent flexible rings to prevent the flexible rings from interfering in the rotation process.
The radial nested rotary electric transmission device is characterized in that a plurality of inner positioning strips are arranged on the outer side wall of the rolling ring shaft, the inner positioning strips are uniformly distributed along the circumferential direction, and the inner conductive rings and the inner side wall of the inner insulating layer are attached to the inner positioning strips; the inner side wall of the shell is provided with a plurality of outer positioning strips, the outer positioning strips are uniformly distributed along the circumferential direction, and the outer conductive rings and the outer side wall of the outer insulating layer are attached to the outer positioning strips; the inner side wall of the inner conductive ring is provided with a plurality of lugs which are uniformly distributed along the circumferential direction; the outer side wall of the outer conductive ring is provided with a plurality of lugs which are uniformly distributed along the circumferential direction; the lugs are used for routing the rolling ring assembly.
The radial nested rotary electric transmission device comprises a slip ring assembly, a sliding ring assembly and a sliding ring assembly, wherein the slip ring assembly comprises a slip ring shaft, a slip ring bearing seat, an insulating shaft sleeve, a conductive ring body, an insulating sheet, a combined bracket, a brush plate, a brush wire bundle, a slip ring shell and a slip ring end cover; the slip ring housing is used for separating the slip ring assembly from the rolling ring assembly; the slip ring shaft is arranged in the slip ring shell; the insulating shaft sleeve is arranged on the outer side of the slip ring shaft; the insulating sheets and the conductive ring bodies are sleeved on the insulating shaft sleeve, and the insulating sheets and the conductive ring bodies are alternately arranged along the axial direction; one end of the slip ring shaft is connected with the left end cover, and the slip ring bearing seat is fixed on the other end of the slip ring shaft; the combined support is arranged outside the combined body of the insulating sheet and the conductive ring body; two electric brush plates are arranged on the outer side of the combined bracket and are uniformly distributed along the circumferential direction; the electric brush wire bundle passes through the copper sleeve and is fixed on the electric brush plate; the slip ring end cover is connected with one end of the combined support through a screw, and the right end cover is connected with the other end of the combined support through a screw; and two ends of the slip ring shell are connected with the combined support through screws.
The radial nested rotary electric transmission device is characterized in that one second angular contact ball bearing is positioned between the combined support and the slip ring shaft, and the other second angular contact ball bearing is positioned between the combined support and the slip ring bearing seat.
In the radial nested rotary electric transmission device, the inner side wall of the conductive ring body is provided with the lugs which are used for wiring the slip ring assembly.
According to the radial nested rotary electric transmission device, two rows of electric brush tows are arranged on the same electric brush plate, the distance between positioning points of the two rows of electric brush tows is smaller than the outer diameter of the conductive ring body, and the free ends of the electric brush tows are stably contacted with the conductive ring body through resilience force generated by deformation.
Compared with the prior art, the invention has the beneficial technical effects that:
the radial nested rotary electric transmission device combines two different types of electric transmission configurations, fully exerts the characteristics of low abrasion of the rolling ring, long service life, high transmission power, stable contact of the tangential brush wire bundle slip ring and small abrasion under low load, and utilizes the rolling ring to transmit high-power electric energy and the tangential brush wire bundle slip ring to transmit low-power electric signals; the two are coaxially arranged, so that the separation of the power ring and the electric signal ring is realized, the volume of the whole device is reduced to the maximum extent, and the requirements of a spacecraft on a small-volume high-power electric transmission device can be well met.
Drawings
The radial nested rotary electric transmission device of the present invention is given by the following examples and figures.
Fig. 1 is a schematic axial sectional view of a radial nested rotary electric transmission device according to a preferred embodiment of the present invention.
Fig. 2 is a schematic view showing a radial sectional structure of a radial nested rotary electric transmission device according to a preferred embodiment of the present invention.
Detailed Description
The radial nested rotary electric transmission device of the present invention will be described in further detail below with reference to fig. 1-2.
The invention is characterized in that the slip ring assembly and the rolling ring assembly are arranged in the same rotary electric transmission device, the slip ring assembly and the rolling ring assembly are coaxially arranged, the rolling ring assembly transmits high-power electric energy, and the slip ring assembly transmits low-power electric signals.
FIG. 1 is a schematic axial cross-sectional view of a radially nested rotary electric transmission device according to a preferred embodiment of the present invention; fig. 2 is a schematic diagram showing a radial sectional structure of a radial nested rotary electric transmission device according to a preferred embodiment of the present invention.
As shown in fig. 1 and 2, the radial nested rotary electric transmission device of the present embodiment includes a housing 1, a sleeve 2, a retainer ring 3, a rolling ring assembly, a slip ring assembly, a left end cover 4, a right end cover 18, a connecting piece 19, a first angular contact ball bearing 6, a second angular contact ball bearing 22, an inner seal ring 8, and an outer seal ring 7; the rolling ring assembly comprises an inner conductive ring 13, an outer conductive ring 14, an inner insulating layer 11, an outer insulating layer 12, a flexible ring 15, an idler wheel 16, a rolling ring shaft 17 and a rolling ring bearing seat 5; the slip ring assembly comprises a slip ring shaft 21, a slip ring bearing seat 20, an insulating shaft sleeve 28, a conductive ring body 26, an insulating sheet 25, a combined bracket 23, a brush plate 24, a brush wire bundle 27, a slip ring shell 29 and a slip ring end cover 30.
The inner conductive ring 13 and the inner insulating layer 11 are sleeved on the rolling ring shaft 17; a plurality of inner conductive rings 13 are arranged along the axial direction, and one inner insulating layer 11 is arranged between any two adjacent inner conductive rings 13, namely the inner conductive rings 13 and the inner insulating layers 11 are alternately arranged along the axial direction; a plurality of outer conductive rings 14 are arranged along the axial direction, and one outer insulating layer 12 is arranged between any two adjacent outer conductive rings 14, namely the outer conductive rings 14 and the outer insulating layers 12 are alternately arranged along the axial direction; the outer conductive rings 14 are in one-to-one correspondence with the inner conductive rings 13, and the outer conductive rings 14 and the inner conductive rings 13 corresponding to the outer conductive rings form a layer of loops, namely a plurality of layers of loops are arranged along the axial direction;
in each layer of loop, a plurality of flexible rings 15 and a plurality of idle wheels 16 are arranged between the outer conductive ring 14 and the inner conductive ring 13, and the flexible rings 15 and the idle wheels 16 are alternately arranged along the circumferential direction (circumferential direction); as shown in fig. 1, the outer diameter of the flexible ring 15 is slightly larger than the difference between the inner diameter of the outer conductive ring 14 and the outer diameter of the inner conductive ring 13, the flexible ring 15 is fixed between the inner diameter of the outer conductive ring 14 and the outer diameter of the inner conductive ring 13 by the resilience force of radial deformation, and the idle wheel 16 separates two adjacent flexible rings 15 to prevent the flexible rings 15 from interfering during rotation; the loops of the layers are axially separated by the inner insulating layer 11 and the outer insulating layer 12;
the rolling ring shaft 17 is arranged in the shell 1, and each layer of loop of the rolling ring assembly is arranged between the rolling ring shaft 17 and the shell 1; four inner positioning strips 9 are arranged on the outer side wall of the rolling ring shaft 17, the four inner positioning strips 9 are uniformly distributed along the circumferential direction, and the inner conductive rings 13 and the inner side walls of the inner insulating layers 11 are attached to the inner positioning strips 9; four outer positioning strips 10 are arranged on the inner side wall of the shell 1, the four outer positioning strips 10 are uniformly distributed along the circumferential direction, and the outer conductive rings 14 and the outer side wall of the outer insulating layer 12 are attached to the outer positioning strips 10; the inner positioning strip 9 and the outer positioning strip 10 radially limit each layer of loop of the rolling ring assembly;
the two ends of the rolling ring assembly are respectively provided with a first angle contact ball bearing 6; the rolling ring bearing seat 5 is fixed at one end of the rolling ring shaft 17 through a screw, the shaft sleeve 2 is fixed on the shell 1 through a screw, and the first angular contact ball bearing 6 is positioned between the rolling ring bearing seat 5 and the shaft sleeve 2 (see left side of fig. 1); the other first angular contact ball bearing 6 is located between the other end of the rolling ring shaft 17 and the housing 1 (see right side of fig. 1); a pair of first angular contact ball bearings 6 each mounted bearing-to-bearing; the outer side of the inner sealing ring 8 is designed to be a rectangular tooth structure, the inner side of the outer sealing ring 7 is also designed to be a rectangular tooth structure, the inner sealing ring 8 and the outer sealing ring 7 are matched through the rectangular tooth structure (gaps are reserved between tooth tops and tooth roots and between teeth and teeth) to form loop seals, two ends of the rolling ring assembly are respectively provided with one loop seal, and abrasive dust generated in the loop movement process in the rolling ring assembly is prevented from moving into the gap of the first angular contact ball bearing 6; in the axial direction, the outer sealing rings 7 at two ends are respectively attached to the shaft sleeve 2 and the shell 1, and the inner sealing rings 8 at two ends are respectively attached to the rolling ring bearing seat 5 and the rolling ring shaft 17; the left end cover 4 is fixed on the rolling ring bearing seat 5 through screws, and the right end cover 18 is fixed on the shell 1 through screws; the outer sealing ring 7, the inner sealing ring 8 and the rolling ring assembly are axially fixed between the rolling ring shaft 17 and the shell 1 through axial compression forces generated by screws between the right end cover 18 and the shell 1, between the shaft sleeve 2 and the shell 1 and between the left end cover 4 and the rolling ring bearing seat 5, so that the loops of all layers are prevented from axially moving;
four lugs are arranged on the inner side wall of the inner conductive ring 13 and are uniformly distributed along the circumferential direction; four lugs are arranged on the outer side wall of the outer conductive ring 14 and are uniformly distributed along the circumferential direction; the lugs are used for routing the rolling ring assembly.
The slip ring housing 29 is arranged in the housing 1 for separating the slip ring assembly from the rolling ring assembly; the slip ring shaft 21 is arranged in the slip ring housing 29;
the outer side of the sliding ring shaft 21 is provided with the insulating shaft sleeve 28; the insulating sheets 25 and the conductive ring bodies 26 are sleeved on the insulating shaft sleeve 28, and the insulating sheets 25 and the conductive ring bodies 26 are alternately arranged along the axial direction, namely, two adjacent conductive ring bodies 26 are separated by the insulating sheets 25; one end of the sliding ring shaft 21 is connected with the left end cover 4 through a screw, and the sliding ring bearing seat 20 is fixed on the other end of the sliding ring shaft 21 through a screw; the insulating sheet 25 and the conductive ring body 26 are axially fixed on the slip ring shaft 21 through axial compression force generated by screws between the left end cover 4 and the slip ring shaft 21 and between the slip ring bearing seat 20 and the slip ring shaft 21, so that axial movement is prevented in the movement process;
the combined support 23 is arranged outside the combination body of the insulating sheet 25 and the conductive ring body 26; two electric brush plates 24 are arranged on the outer side of the combined bracket 23, and the two electric brush plates 24 are uniformly distributed along the circumferential direction; the electric brush tows 27 penetrate through the copper sleeve and are fixed on the electric brush plate 24, two rows of electric brush tows 27 are arranged on the same electric brush plate 24, the distance between positioning points (positioning points refer to connecting points of the electric brush tows 27 and the electric brush plate 24) of the two rows of electric brush tows 27 is smaller than the outer diameter of the conductive ring body 26, and the free ends of the electric brush tows 27 are in stable contact with the conductive ring body 26 through resilience force generated by deformation;
the slip ring shaft 21, the insulating shaft sleeve 28, the insulating sheet 25, the conductive ring body 26, the slip ring bearing seat 20, the combined support 23, the brush plate 24 and the brush wire bundles 27 are all arranged in the slip ring shell 29; the slip ring end cover 30 is connected with one end of the combined support 23 through a screw, and the right end cover 18 is connected with the other end of the combined support 23 through a screw; both ends of the slip ring shell 29 are connected with the combined bracket 23 through screws;
two ends of the slip ring assembly are respectively provided with a second angular contact ball bearing 22, one second angular contact ball bearing 22 is positioned between the combined bracket 23 and the slip ring shaft 21 (see left side of fig. 1), and the other second angular contact ball bearing 22 is positioned between the combined bracket 23 and the slip ring bearing seat 20 (see right side of fig. 1); a pair of second angular contact ball bearings 22 mounted face-to-face;
a lug is disposed on the inner side wall of the conductive ring body 26, and the lug is used for routing the slip ring assembly.
The left end cover 4 is connected with the rolling ring bearing seat 5 and the sliding ring shaft 21 through screws, so that the rotation speed of the inner conductive ring 13 in the rolling ring assembly is the same as that of the conductive ring 26 in the sliding ring assembly; the right end cover 18 is connected with the rolling ring shaft 17 and the combined support 23 through screws, so that the rotation speed of the outer conducting ring 14 in the rolling ring assembly is the same as that of the electric brush wire bundle 27 in the slip ring assembly, and the power transmission and the electric signal transmission from the rotating end to the fixed end of the electric transmission device are realized.
The rolling ring component and the slip ring component of the radial nested electric transmission device are in modularized design, and can be assembled after being assembled respectively, so that the assembly is completed, the installation is convenient, and the flexibility is high. The rolling ring assembly 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 rolling ring assembly is suitable for transmitting high-power current; the brush part of the slip ring assembly consists of metal brush wire bundles, so that the load of the brush is much smaller when the load is distributed on each brush wire, the abrasion is lower, the contact is stable, and the slip ring assembly is suitable for transmitting electric signals. The two are radially nested together, so that the advantages and features of the device are fully exerted, the space size 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 (10)
1. The radial nested rotary electric transmission device is characterized by comprising a shell, a shaft sleeve, a rolling ring assembly, a slip ring assembly, a left end cover, a right end cover, a first angular contact ball bearing and a second angular contact ball bearing;
the rolling ring assembly and the slip ring assembly are coaxially arranged in the shell, and the slip ring assembly is arranged in the rolling ring assembly;
the shaft sleeve is connected with one end of the shell, and at the end, the left end cover is connected with one end of the rolling ring assembly; the right end cover is connected with the other end of the shell; the two ends of the rolling ring component are respectively provided with a first angle contact ball bearing, one first angle contact ball bearing is positioned between the shaft sleeve and the rolling ring component, and the other first angle contact ball bearing is positioned between the shell and the rolling ring component; a pair of first angular contact ball bearings each bearing-face mounted;
the left end cover is connected with one end of the slip ring assembly, and the right end cover is connected with the other end of the slip ring assembly; the two ends of the slip ring assembly are respectively provided with a pair of second angular contact ball bearings, and the pair of second angular contact ball bearings are arranged face to face.
2. A radially nested rotary electric device as recited in claim 1, wherein the rolling ring assembly has a loop seal at each end for preventing wear debris generated during movement of the rolling ring assembly from moving into the gap of the first angular contact ball bearing.
3. The radial nested rotary electric transmission device of claim 2, wherein the loop seal comprises an outer seal ring and an inner seal ring, the outer side of the inner seal ring is designed to be of a rectangular tooth structure, the inner side of the outer seal ring is also designed to be of a rectangular tooth structure, the inner seal ring is matched with the outer seal ring through the rectangular tooth structure, and gaps are reserved between tooth tops and tooth roots and between teeth.
4. The radially nested rotary electric device of claim 1, wherein the rolling ring assembly comprises an inner conductive ring, an outer conductive ring, an inner insulating layer, an outer insulating layer, a flexible ring, an idler wheel, a rolling ring shaft, and a rolling ring bearing housing;
the inner conductive ring and the inner insulating layer are sleeved on the rolling ring shaft; a plurality of inner conductive rings are arranged along the axial direction, and an inner insulating layer is arranged between any two adjacent inner conductive rings; a plurality of outer conductive rings are arranged along the axial direction, and an outer insulating layer is arranged between any two adjacent outer conductive rings; the outer conductive rings are in one-to-one correspondence with the inner conductive rings, and the outer conductive rings and the inner conductive rings corresponding to the outer conductive rings form a layer of loop; in each layer of loop, a plurality of flexible rings and a plurality of idler wheels are arranged between the outer conductive ring and the inner conductive ring, and the flexible rings and the idler wheels are alternately arranged along the circumferential direction;
the rolling ring bearing seat is fixed at one end of the rolling ring shaft, and the other end of the rolling ring shaft is connected with the shell; the left end cover is fixed on the rolling ring bearing seat; one of the first angular contact ball bearings is located between the rolling ring bearing housing and the sleeve, and the other of the first angular contact ball bearings is located between the rolling ring shaft and the housing.
5. The radially nested rotary electric device of claim 4, wherein the outer diameter of the flexible ring is greater than the difference between the outer diameter of the inner and outer rings, the flexible ring being secured between the outer and inner rings by a radially deformed spring back force, the idler wheel separating adjacent two of the flexible rings from interference during rotation.
6. The radial nested rotary electric device of claim 4, wherein a plurality of inner positioning strips are arranged on the outer side wall of the rolling ring shaft, the plurality of inner positioning strips are uniformly distributed along the circumferential direction, and the inner conductive rings and the inner side walls of the inner insulating layers are attached to the inner positioning strips; the inner side wall of the shell is provided with a plurality of outer positioning strips, the outer positioning strips are uniformly distributed along the circumferential direction, and the outer conductive rings and the outer side wall of the outer insulating layer are attached to the outer positioning strips; the inner side wall of the inner conductive ring is provided with a plurality of lugs which are uniformly distributed along the circumferential direction; the outer side wall of the outer conductive ring is provided with a plurality of lugs which are uniformly distributed along the circumferential direction; the lugs are used for routing the rolling ring assembly.
7. The radial nested rotary electric device of claim 1, wherein the slip ring assembly comprises a slip ring shaft, a slip ring bearing housing, an insulating sleeve, a conductive ring body, an insulating sheet, a composite bracket, a brush plate, a brush tow, a slip ring housing, and a slip ring end cap;
the slip ring housing is used for separating the slip ring assembly from the rolling ring assembly; the slip ring shaft is arranged in the slip ring shell; the insulating shaft sleeve is arranged on the outer side of the slip ring shaft; the insulating sheets and the conductive ring bodies are sleeved on the insulating shaft sleeve, and the insulating sheets and the conductive ring bodies are alternately arranged along the axial direction; one end of the slip ring shaft is connected with the left end cover, and the slip ring bearing seat is fixed on the other end of the slip ring shaft; the combined support is arranged outside the combined body of the insulating sheet and the conductive ring body; two electric brush plates are arranged on the outer side of the combined bracket and are uniformly distributed along the circumferential direction; the electric brush wire bundle passes through the copper sleeve and is fixed on the electric brush plate; the slip ring end cover is connected with one end of the combined support through a screw, and the right end cover is connected with the other end of the combined support through a screw; and two ends of the slip ring shell are connected with the combined support through screws.
8. The radially nested rotary electric device of claim 7, wherein one of the second angular contact ball bearings is located between the composite bracket and the slip ring shaft and the other of the second angular contact ball bearings is located between the composite bracket and the slip ring bearing housing.
9. The radially nested rotary electric device of claim 7, wherein the inner sidewall of the conductive ring body is provided with lugs for slip ring assembly routing.
10. The radial nested rotary electric transmission device of claim 7, wherein two rows of brush tows are arranged on the same brush plate, the distance between positioning points of the two rows of brush tows is smaller than the outer diameter of the conductive ring body, and the free ends of the brush tows are in stable contact with the conductive ring body through resilience force generated by deformation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311434031.3A CN117424045A (en) | 2023-11-01 | 2023-11-01 | Radial nested rotary electric transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311434031.3A CN117424045A (en) | 2023-11-01 | 2023-11-01 | Radial nested rotary electric transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117424045A true CN117424045A (en) | 2024-01-19 |
Family
ID=89528102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311434031.3A Pending CN117424045A (en) | 2023-11-01 | 2023-11-01 | Radial nested rotary electric transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117424045A (en) |
-
2023
- 2023-11-01 CN CN202311434031.3A patent/CN117424045A/en active Pending
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