CN113937584B - Miniaturized high-reliability rotary multipath signal and power transmission device - Google Patents
Miniaturized high-reliability rotary multipath signal and power transmission device Download PDFInfo
- Publication number
- CN113937584B CN113937584B CN202111015032.5A CN202111015032A CN113937584B CN 113937584 B CN113937584 B CN 113937584B CN 202111015032 A CN202111015032 A CN 202111015032A CN 113937584 B CN113937584 B CN 113937584B
- Authority
- CN
- China
- Prior art keywords
- brush
- conducting rod
- bracket
- brush holder
- holder assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 claims description 19
- 239000000919 ceramic Substances 0.000 claims description 13
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 238000012216 screening Methods 0.000 abstract 1
- 230000008054 signal transmission Effects 0.000 description 6
- 238000003754 machining Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 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
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/24—Laminated contacts; Wire contacts, e.g. metallic brush, carbon fibres
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
The invention discloses a miniaturized long-life high-reliability rotary multipath signal and power transmission device, which comprises a bracket, a conducting rod, a brush holder assembly, a miniature bearing and a lock nut, wherein the bracket is arranged on the bracket; the conducting rod is arranged on the bracket through two miniature bearings and a locking nut, and can rotate relative to the bracket; the brush holder assembly is fixed on the bracket through cementing; the electric brush installed on the electric brush frame component rotates relative to the slip ring on the conducting rod and transmits signals and power. The power transmission device provided by the invention can be independently used as a component; each passage adopts 8-point contact redundancy design, and the structure is very compact, and the installation and the replacement are convenient. The invention has the advantages of small volume, high reliability, convenient installation and replacement, independent test and screening as a component and the like, and can be used for multi-channel signal and power transmission between fixed structures such as meters, satellites, rotary tables and the like and rotating structures.
Description
Technical Field
The invention relates to a rotary multipath signal and power transmission device.
Background
As a carrier for power and signal transmission between the fixed structure and the rotating structure, the power transmission device has good wear resistance, and the brush wire and the slip ring are ensured to have longer service life; the friction coefficient is lower, the energy loss in the rotation process of the system is reduced, and the friction heat generation between the brush wires and the slip ring is reduced; the contact resistance is low, the energy loss is reduced, and the risk of arc initiation is reduced; the low-noise signal transmission circuit has a low electric noise value, reduces interference of electric noise on signal transmission, and reduces distortion of small signals in transmission; has good storage stability and ensures insensitivity to moisture and oxygen in the atmosphere. In order to meet the above characteristics, the electrical contact materials commonly used at present have the following characteristics: a silver-based electrical contact material; a copper-based electrical contact material; a platinum-based electrical contact material; gold-based electrical contact material. The materials of the brush wire and the slip ring are selected according to different use conditions, and generally, the gold-based electric contact material has stable performance, good conductivity and higher manufacturing cost and is mainly used in equipment with higher sensitivity.
In order to adapt to different use environments, the existing power transmission device mainly comprises two structural forms of a disc type power transmission device and a column type power transmission device. The slotting of the slip ring is mainly in three forms of V-shaped, U-shaped and plane, and the structural form of the brush wire is cylindrical, sheet-shaped and bundle-shaped brush wire.
For precision devices such as high-precision instruments and satellites, the special application environment of the precision devices does not have the conditions of daily maintenance and replacement, so that the precision devices have very severe requirements on the power transmission devices, and the precision devices have the characteristics of long service life, high reliability, miniaturization and multipath signal transmission. There is a need for a multiple signal and power transmission device that meets the above requirements.
Disclosure of Invention
The invention solves the technical problems that: the rotary multipath signal and power transmission device has long service life, high reliability, miniaturization and convenient installation, and can be used for signal transmission between the rotary structure and the fixed structure of mechanical equipment such as instruments, satellites and rotary tables.
The technical scheme of the invention is as follows: the miniaturized high-reliability rotary multipath signal and power transmission device comprises a conducting rod, a first miniature bearing, a bracket, a first brush holder assembly, a second miniature bearing, a lock nut and a second brush holder assembly;
The conducting rod is arranged in the bracket, two ends of the conducting rod are connected with the bracket through a first miniature bearing and a second miniature bearing and are locked by locking nuts, and the first brush holder component and the second brush holder component are adhered to two sides of the bracket; and the brush wires on the first brush holder assembly and the second brush holder assembly rotate relative to the slip ring on the conducting rod and are used for transmitting power and signals.
When in use, the bracket is fixed on the rotating part or the fixed part; two planes are arranged on two sides of the upper end of the conducting rod, and the conducting rod is clamped by the two planes of the conducting rod, so that the conducting rod is not moved when the support rotates; or the support is fixed, and the conductive rod rotates; the signal is transmitted to the corresponding brush wires from the leads of the first brush holder assembly and the second brush holder assembly, then transmitted to the corresponding sliding rings which are contacted with each other through the brush wires, and then led out through the lead wires welded on the sliding rings.
The first brush holder assembly and the second brush holder assembly both comprise brush wires and ceramic frameworks; 3 electric brush wires are arranged in the same ring groove of the ceramic skeleton, the electric brush wires at two sides are omega-shaped, and the middle electric brush wire is used for positioning and is not contacted with the slip ring; each brush wire is fixed on the ceramic framework by epoxy resin glue, and the lead wires are led out from the tail parts.
The slip ring on the conducting rod is provided with a W-shaped groove, two brush wires are respectively clamped in two V-shaped grooves of the W-shaped groove during operation, each passage is provided with 8-point contact between two brush wires and the conducting rod, and the conducting rod and the brush wires are ensured to be in 8-point redundant contact when relatively rotating.
The framework material is selected from machinable ceramic TSG.
The slip ring is made of AuAg20Cu10/t0.75mm material, and the brush wire is made of AuCu14Pt9Ag 4/phi 0.15mm material for friction pair matching.
Compared with the prior art, the invention has the advantages that:
The invention has the advantages of small volume, light weight, high reliability, convenient installation, multiplexing transmission and the like. The device can be independently used in mechanical devices, and can be used for signal transmission between a rotating structure and a fixed structure of mechanical equipment such as instruments, satellites, turntables and the like.
The brush holder and the conducting rod are fixed through the support, the brush wires and the slip ring are mutually aligned through the structure, and the stainless steel core shaft is contained in the conducting rod, so that the rigidity of the conducting rod is improved, and the conducting rod is guaranteed to have good machining performance. The support is designed as an open type, and the brush wires and the slip ring are visible and adjustable under a microscope. The bracket is used as the integral support of the whole structure, has no redundant flange edge, and is convenient for the installation of the power transmission device from top to bottom and from bottom to top. In conclusion, the structural design ensures miniaturization of the product.
The W-shaped notch is formed in the slip ring, the brush wire is in 8-point contact with the slip ring, redundant design is guaranteed on each passage, the service performance of the power transmission device is not affected even if a virtual connection fault occurs at a certain contact point, and the reliability of the power transmission device under severe test conditions such as vibration, centrifugation and the like is guaranteed.
Drawings
Fig. 1 is a partial cross-sectional view of a miniaturized high-reliability rotary multiplex signal and power transmission device.
Fig. 2 is a diagram of a brush holder assembly for a miniaturized high reliability rotary multiplex signal and power transmission device.
Fig. 3 is an enlarged view of a miniaturized high-reliability rotary multipath signal and a conductive rod of a power transmission device.
Fig. 4 is an application example of a miniaturized high-reliability rotary multiplexing signal and power transmission device.
Detailed Description
The invention is described below with reference to the drawings and examples.
As shown in fig. 1, the miniaturized high-reliability rotary multipath signal and power transmission device comprises a conducting rod 1, a first miniature bearing 2, a bracket 3, a first brush holder assembly 4, a second miniature bearing 5, a locking nut 6 and a second brush holder assembly 7;
The conducting rod 1 is arranged in the support 3, two ends of the conducting rod are connected with the support 3 through the first miniature bearing 2 and the second miniature bearing 5 and locked by the locking nut 6, the first brush holder assembly 4 and the second brush holder assembly 7 are adhered to two sides of the support 3, and the brush wires on the two brush holder assemblies and the slip ring on the conducting rod 1 rotate relatively to transmit power and signals.
When the electric conduction device is used, the support 3 is fixed on the rotating part or the fixing part by using nuts, two planes are arranged on two sides of the upper end of the electric conduction rod 1, and the electric conduction rod 1 can be clamped through the two planes, so that the electric conduction rod 1 is not moved when the support 3 rotates; or the support 3 is stationary and the conductive rod 1 rotates. The signal is transmitted to the corresponding brush wire from the lead wire of the brush frame assembly, then transmitted to the corresponding slip ring contacted with the brush wire, and then led out through the lead wire welded on the slip ring.
As shown in fig. 2, the first brush holder assembly 4 and the second brush holder assembly 7, which are miniaturized and highly reliable rotary multi-path signal and power transmission devices, each comprise brush wires and a ceramic skeleton. The ceramic skeleton is provided with 3 brush wires in the same ring groove, the brush wires at two sides are provided with omega-shaped openings, and the middle brush wire is used for positioning and is not contacted with the slip ring. The position accuracy of the brush wires is ensured by the machining accuracy, each brush wire is fixed on the ceramic framework by epoxy resin glue, and the lead wires are led out from the tail parts.
As shown in fig. 3, in order to achieve a compact and highly reliable enlarged view of the conducting rod of the rotary multi-channel signal and power transmission device, a W-shaped groove is formed in a slip ring on the conducting rod 1, two brush wires are respectively clamped in the two V-shaped grooves of the W-shaped groove during operation, two brush wires in each passage form 8-point contact with the conducting rod 1, and the accurate positioning of the brush wires can be ensured when the conducting rod 1 and the brush wires relatively rotate, so that the phenomenon of jumping rings is avoided.
Examples
As shown in fig. 4, the bracket 3 of the miniaturized highly reliable rotary multi-path signal and power transmission device is fixed on the rotating part 8 by screws, wherein the rotating part 8 is provided with a plurality of paths of signals which need to be input or output, and the signals are connected with the leads of the first brush holder assembly 4 and the second brush holder assembly 7 through wiring boards. The conductive rod 1 is connected with the fixing part by a positioning rod 9, and the outgoing line of the conductive rod is led out by a wiring board. In operation, the rotating member 8 rotates about the vertical axis, and the bracket 3, the first brush holder assembly 4 and the second brush holder assembly 7 rotate together with the rotating member 8, while the conductive rod 1 remains relatively fixed due to being caught by the retainer. The signal on the rotating member 8 is thus led to the brush wire via the brush wire lead, and is led to the slip ring via the sliding contact of the brush wire with the slip ring on the conductor rod 1, and is led out via the slip ring lead. The miniaturized high-reliability rotary multipath signal and power transmission device has the total height of only 25.1mm, the diameter of only phi 11mm, no redundant flange edge, small volume, light weight, long service life and high reliability.
The bracket 3 is used as the integral support of the whole structure, has the outer diameter of 11mm, has no redundant flange edge, and is convenient for the installation of the power transmission device from top to bottom and from bottom to top.
The first brush holder assembly 4 and the second brush holder assembly 7 are formed by fixing a plurality of brushes on a framework. The shape of the brush wire is omega-shaped, so that the damage to the slip ring caused by the brush wire in the installation process can be effectively avoided, and the service life is influenced. The ceramic framework material is selected from machinable ceramic TSG (GJB 56A-1995), and has good insulation and machinability. The slip ring sheet on the conductive rod 1 and the brush wires on the two brush frame components are made of wear-resistant good conductor materials, the slip ring is made of materials with microscopic Vickers hardness of 290-310 after AuAg20Cu10/t0.75mm aging, and the brush wires are made of materials with microscopic Vickers hardness of 270-290 after AuCu14Pt9Ag 4/phi 0.15mm aging for friction pair matching, so that the service life is ensured to be longer than 1000 ten thousand revolutions.
The electric brush wire is formed by adopting a wire material with the diameter of 0.15mm, the slip ring is formed by adopting a plate material with the diameter of 0.75mm, and the thickness of an insulating layer between the slip rings after machining is 0.15mm, so that the volume of the power transmission device is greatly reduced.
The invention, in part not described in detail, is within the skill of those skilled in the art.
Claims (2)
1. The miniaturized high-reliability rotary multipath signal and power transmission device is characterized by comprising a conducting rod (1), a first miniature bearing (2), a bracket (3), a first brush holder assembly (4), a second miniature bearing (5), a locking nut (6) and a second brush holder assembly (7);
The conducting rod (1) is arranged in the bracket (3), two ends of the conducting rod are connected with the bracket (3) through the first miniature bearing (2) and the second miniature bearing (5) and locked by the locking nut (6), and the first brush holder component (4) and the second brush holder component (7) are adhered to two sides of the bracket (3); the brush wires on the first brush holder assembly (4) and the second brush holder assembly (7) rotate relative to the slip ring on the conducting rod (1) and are used for transmitting power and signals;
the first brush holder assembly (4) and the second brush holder assembly (7) both comprise brush wires and ceramic frameworks; 3 electric brush wires are arranged in the same ring groove of the ceramic skeleton, the electric brush wires at two sides are omega-shaped, and the middle electric brush wire is used for positioning and is not contacted with the slip ring; each brush wire is fixed on the ceramic framework by adopting epoxy resin glue, and the lead wires are led out from the tail part;
the slip ring on the conducting rod (1) is provided with a W-shaped groove, two brush wires are respectively clamped in two V-shaped grooves of the W-shaped groove during operation, each passage forms 8-point contact with the conducting rod (1), and when the conducting rod (1) and the brush wires relatively rotate, each signal is ensured to adopt 8-point redundant contact;
The slip ring is made of AuAg20Cu10/t0.75mm material, and the brush wire is made of AuCu14Pt9Ag 4/phi 0.15mm material for friction pair matching;
When in use, the bracket (3) is fixed on the rotating part or the fixed part; two planes are arranged on two sides of the upper end of the conducting rod (1), and the conducting rod (1) is clamped through the two planes of the conducting rod (1), so that the conducting rod (1) is not moved when the support (3) rotates; or the bracket (3) is fixed, and the conducting rod (1) rotates; the signals are transmitted to the corresponding brush wires from the leads of the first brush holder assembly (4) and the second brush holder assembly (7), then transmitted to the corresponding sliding rings which are contacted with each other through the brush wires, and then led out through the lead wires welded on the sliding rings.
2. The miniaturized, high-reliability, rotary multi-channel signal and power transmission device of claim 1, wherein: the framework material is selected from machinable ceramic TSG.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111015032.5A CN113937584B (en) | 2021-08-31 | 2021-08-31 | Miniaturized high-reliability rotary multipath signal and power transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111015032.5A CN113937584B (en) | 2021-08-31 | 2021-08-31 | Miniaturized high-reliability rotary multipath signal and power transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113937584A CN113937584A (en) | 2022-01-14 |
| CN113937584B true CN113937584B (en) | 2024-06-11 |
Family
ID=79274888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111015032.5A Active CN113937584B (en) | 2021-08-31 | 2021-08-31 | Miniaturized high-reliability rotary multipath signal and power transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113937584B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640363A (en) * | 2009-08-12 | 2010-02-03 | 北京航天控制仪器研究所 | Integrated micro-rotating multi-channel power transmission device |
| CN201490551U (en) * | 2009-09-07 | 2010-05-26 | 北京航天控制仪器研究所 | Open-type micro split power transmission device |
| CN103840346A (en) * | 2014-03-11 | 2014-06-04 | 四川永贵科技有限公司 | Conductive slip ring of fiber bundle structure |
| CN204088841U (en) * | 2014-09-30 | 2015-01-07 | 四川永贵科技有限公司 | Fibre bundle conducting slip ring and fibre bundle brush thereof and brush fixture |
| CN107134702A (en) * | 2017-04-28 | 2017-09-05 | 北京航天控制仪器研究所 | A kind of space slip ring brush assembly of electric |
| CN209045970U (en) * | 2018-12-10 | 2019-06-28 | 四川永贵科技有限公司 | A kind of main axle structure of conducting slip ring |
| CN209981687U (en) * | 2019-06-12 | 2020-01-21 | 中国电子科技集团公司第三十八研究所 | Brush wire collector ring suitable for signal transmission |
| CN112332187A (en) * | 2020-11-20 | 2021-02-05 | 中船九江精达科技股份有限公司 | Conducting slip ring for stable transmission of 1553B signals for space mechanism |
-
2021
- 2021-08-31 CN CN202111015032.5A patent/CN113937584B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640363A (en) * | 2009-08-12 | 2010-02-03 | 北京航天控制仪器研究所 | Integrated micro-rotating multi-channel power transmission device |
| CN201490551U (en) * | 2009-09-07 | 2010-05-26 | 北京航天控制仪器研究所 | Open-type micro split power transmission device |
| CN103840346A (en) * | 2014-03-11 | 2014-06-04 | 四川永贵科技有限公司 | Conductive slip ring of fiber bundle structure |
| CN204088841U (en) * | 2014-09-30 | 2015-01-07 | 四川永贵科技有限公司 | Fibre bundle conducting slip ring and fibre bundle brush thereof and brush fixture |
| CN107134702A (en) * | 2017-04-28 | 2017-09-05 | 北京航天控制仪器研究所 | A kind of space slip ring brush assembly of electric |
| CN209045970U (en) * | 2018-12-10 | 2019-06-28 | 四川永贵科技有限公司 | A kind of main axle structure of conducting slip ring |
| CN209981687U (en) * | 2019-06-12 | 2020-01-21 | 中国电子科技集团公司第三十八研究所 | Brush wire collector ring suitable for signal transmission |
| CN112332187A (en) * | 2020-11-20 | 2021-02-05 | 中船九江精达科技股份有限公司 | Conducting slip ring for stable transmission of 1553B signals for space mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113937584A (en) | 2022-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5851120A (en) | Rotary conduit/ball connector | |
| US5588843A (en) | Rotary electrical connector | |
| US5829148A (en) | Spatial measuring device | |
| CN101640363B (en) | Integrated micro-rotating multi-channel power transmission device | |
| US5484294A (en) | Brushless rotary connector | |
| CN202076657U (en) | Precision slip ring assembly of rotation connector | |
| US11316314B2 (en) | Conductive slip ring | |
| JP2735533B2 (en) | Ball contact rotary connector | |
| CN113937584B (en) | Miniaturized high-reliability rotary multipath signal and power transmission device | |
| US7549867B2 (en) | Rotating electrical transfer components | |
| CN108801483B (en) | Multi-contact electric connection device adopting flexible graphite to facilitate remote operation | |
| GB2151080A (en) | Touch probe having nonconductive contact carriers | |
| CN111023957B (en) | High-temperature-resistant radial displacement sensor device | |
| CN114034241B (en) | Precise coaxial quadruple angular displacement sensor | |
| CN205303910U (en) | Radar collector ring multislot power ring subassembly | |
| US20080191721A1 (en) | Electrical test device for testing electrical test pieces | |
| CN109921575B (en) | Integration method of hybrid power rotor based on liquid, gas and electricity | |
| CN103151669A (en) | High-reliability power collector ring | |
| CN112362975A (en) | Transformer bushing test device | |
| CN113193459B (en) | Brush wire seat integration process | |
| EP2031738B1 (en) | Arrangement for an electric motor, and electric motor | |
| CN210111794U (en) | Motor end cover and motor | |
| CN217032536U (en) | Subminiature incremental pulse encoder | |
| CN110556681B (en) | Slip ring and laser radar | |
| CN112731135B (en) | Stroke test sensor for SFMT type circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |