CN111137459A - Helicopter tail rotor anti-icing collector ring - Google Patents
Helicopter tail rotor anti-icing collector ring Download PDFInfo
- Publication number
- CN111137459A CN111137459A CN201911323253.1A CN201911323253A CN111137459A CN 111137459 A CN111137459 A CN 111137459A CN 201911323253 A CN201911323253 A CN 201911323253A CN 111137459 A CN111137459 A CN 111137459A
- Authority
- CN
- China
- Prior art keywords
- base
- brush
- tail rotor
- brush box
- icing
- 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.)
- Pending
Links
- 244000185238 Lophostemon confertus Species 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000011810 insulating material Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- PQJKKINZCUWVKL-UHFFFAOYSA-N [Ni].[Cu].[Ag] Chemical compound [Ni].[Cu].[Ag] PQJKKINZCUWVKL-UHFFFAOYSA-N 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 239000004760 aramid Substances 0.000 claims 1
- 229920003235 aromatic polyamide Polymers 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 description 8
- 229920006231 aramid fiber Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D15/00—De-icing or preventing icing on exterior surfaces of aircraft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D15/00—De-icing or preventing icing on exterior surfaces of aircraft
- B64D15/12—De-icing or preventing icing on exterior surfaces of aircraft by electric heating
-
- 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
-
- 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
-
- 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
- H01R39/36—Connections of cable or wire to brush
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
The invention discloses an anti-icing collector ring of a helicopter tail rotor, which comprises a rotor (1), an outer cover (2) and an electric brush box (4), wherein the rotor (1) is provided with a base (101), a conductive ring assembly (102) is stacked on the columnar outer wall at the upper end of the base (101), the upper end of the conductive ring assembly (102) is provided with a pressure plate (104) and a baffle disc (105), and the conductive ring assembly (102), the pressure plate (104) and the baffle disc (105) are fixed on the base (101) together; a cable (107) is led out from the lower end of the base (101), wires in the cable (107) are connected with binding posts (106) on each conducting ring assembly, and an end cover (108) is fixed at the lower end of the base (101); the electric brush box (4) is arranged on one side of the outer cover (3), a sealing gasket (3) is arranged between the electric brush box (4), and the electric brush box (4) can be independently replaced or maintained. The invention has the advantages of relatively simple structure, good maintainability, long abrasion life of the electric brush and high reliability of the cable.
Description
Technical Field
The invention belongs to the technical field of helicopter rotor deicing prevention and relates to a helicopter tail rotor anti-icing collector ring.
Background
When the helicopter flies under cloud, fog, rain or snow weather conditions, ice is accumulated on the surface of the tail blade, the accumulated ice not only changes the aerodynamic shape of the blade, but also damages parts of the helicopter after falling off. In order to avoid icing to affect the flight safety of the helicopter, the tail rotor blade generally adopts an electric heating anti-icing mode, and a collector ring is required to transmit electric energy or temperature signals between a helicopter body and the tail rotor blade. The existing collecting ring usually adopts an integral structure, two bearings are needed, and the brush holder is arranged inside the collecting ring, so that the maintenance is inconvenient. In addition, when the tail rotor rotates at a high speed (more than or equal to 1000r/min), the cable also has the problems of easy bending and abrasion.
Disclosure of Invention
In view of the above-mentioned circumstances of the prior art, an object of the present invention is to provide a helicopter tail rotor anti-icing collector ring which can reliably transmit the electric energy and temperature signals required by helicopter tail rotor anti-icing.
The above object of the present invention is achieved by the following technical solutions:
a helicopter tail rotor anti-icing collector ring comprises a rotor, an outer cover and a brush box, wherein the rotor is provided with a base, a conductive ring assembly is stacked on the outer wall of a column at the upper end of the base, a pressure plate and a baffle disc are arranged at the upper end of the conductive ring assembly, and the conductive ring assembly, the pressure plate and the baffle disc are fixed on the base together; a cable is led out from the lower end of the base, a lead in the cable is connected with the wiring terminal on each conducting ring assembly, and the end cover is fixed at the lower end of the base; the brush box is arranged on one side of the outer cover, a sealing gasket (usually a rubber gasket) is arranged between the brush box and the outer cover, the brush box can be replaced or maintained independently, and the brush powder in the brush box needs to be cleaned regularly.
Furthermore, the outer cover is arranged on the tail speed reducer, and the electric brush box is connected with a helicopter body cable through a socket; the rotor is arranged on the tail rotor hub, and the cable is connected with the corresponding tail rotor blade through a plug and rotates at a high speed along with the blade; an axial mounting gap is reserved between the rotor and the outer cover.
Wherein the brush box may comprise 9 sets of brushes, 2 each, thereby constituting a redundant design. Correspondingly, the number of the conducting ring assemblies is 9, the conducting rings and the insulating material are molded into a whole, and the insulating material can ensure insulation between the adjacent conducting rings and between the conducting rings and the shell. Wherein the pressure of the electric brush is 17.0-67.0 kPa, and the electric brush is made of a copper-graphite composite material. In addition, the conducting ring is made of silver-copper-nickel alloy, the surface roughness of the conducting ring is better than 0.4, and the coaxiality of the working surface of the conducting ring and the base is better than 0.1.
Further, the cable is evenly distributed around the base, a conductor bundle is arranged in the cable, one end of the conductor bundle is led out from the base, a connector is arranged at the other end of the conductor bundle, an aramid fiber woven sleeve, a spring and an outer sheath are sequentially sleeved on the outer side of the conductor bundle, the spring and the outer sheath are of an integrated structure, one end of the spring is connected with the connector, and the other end of the spring is connected with the base.
Furthermore, the electric brush box is provided with an electric brush box outer cover, a socket and an electric brush frame are arranged on the electric brush box outer cover, a wiring terminal and a brush holder are arranged on the electric brush frame, and the flat spiral spring is fixed on the brush holder and tightly presses the electric brush, so that the electric brush is reliably contacted with the corresponding conducting ring assembly; the lead wire on the brush is connected with the lead wire on the socket through a connecting terminal.
The stator and the rotor of the collector ring are of independent structures, no bearing is needed between the stator and the rotor, the collector ring is relatively simple in structure, and the collector ring has the characteristics of good maintainability, long wear life of an electric brush and high reliability of a cable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is an axial view of a helicopter tail rotor anti-icing slip ring of the present invention.
FIG. 2 is a schematic view of the rotor and housing mounting clearance.
Fig. 3 is a cross-sectional view of the rotor.
Fig. 4 is a sectional view of the brush box.
Detailed Description
For a clearer understanding of the objects, technical solutions and advantages of the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
FIG. 1 is an axial view of a helicopter tail rotor anti-icing slip ring of the present invention. As shown in FIG. 1, the helicopter tail rotor anti-icing collector ring of the present invention comprises a rotor 1, a housing 2 and a brush box 4.
Fig. 3 is a cross-sectional view of the rotor in the helicopter tail rotor anti-icing collector ring shown in fig. 1. As shown in the figure, the rotor 1 is provided with a base 101, a conducting ring assembly 102 is stacked on the columnar outer wall of the upper end of the base 101, a pressure plate 104 and a blocking disc 105 are mounted at the upper end of the conducting ring assembly 102, and the conducting ring assembly 102, the pressure plate 104 and the blocking disc 105 are fixed on the base 101 together through a screw 103; a cable 107 is led out from the lower end of the base 101, wires in the cable 107 are connected with the binding posts 106 on each conducting ring assembly, and an end cover 108 is fixed at the lower end of the base 101.
Referring back to fig. 1, the brush box 4 is installed on one side of the housing 3, and a sealing gasket 3 (usually a rubber gasket) is disposed between the brush box 4 and the housing 3, so that the brush box 4 can be replaced or maintained independently, and the brush powder inside the product needs to be cleaned regularly, and generally, the brush powder inside the product needs to be cleaned regularly every 300 hours.
The outer cover 2 is mounted on a tail speed reducer, the brush box 4 is fixed on the outer cover 2 through 4 bolts 410 with holes (see fig. 4), and the brush box 4 is connected with a helicopter body cable through a socket; the rotor 1 is mounted on the tail rotor hub, and the cable 107 is connected with the corresponding tail rotor blade through a plug and rotates with the blade at a high speed. An axial installation gap 5 is reserved between the rotor 1 and the outer cover 2, fig. 2 schematically shows the axial installation gap 5 between the rotor and the outer cover, and in the embodiment, the axial installation gap 5 between the rotor 1 and the outer cover 2 is adjusted to be 0.8-1.5 mm.
In this embodiment, there are 5 cables 107, evenly distributed around the base 101. The number of cables 107 is typically the same as the number of tail blades.
The brush box 4 may be a brush box commonly used in the art. Fig. 4 is a cross-sectional view of an embodiment of a brush box, where the brush box 4 is provided with a brush box housing 401, a socket 402, a brush holder 406, and a bolt 410 with holes are installed on the brush box housing 401, a terminal 404 and a brush holder 407 are installed on the brush holder 406, a spiral spring 408 is fixed on the brush holder 407 and presses a brush 409 to make the brush 409 reliably contact with a corresponding conductive ring assembly 102, and a cover plate 405 and a sealing pad 403 (typically a rubber pad) are installed on the brush box housing 401 to ensure sealing; the leads on the brushes 409 are connected to the wires on the socket 402 by terminals 404.
The conducting ring assembly 102 is formed by molding and pressing conducting rings and insulating materials, and the insulating materials can ensure insulation between adjacent conducting rings and between the conducting rings and the shell.
In the present embodiment, there are 9 sets of brushes and correspondingly 9 conductive rings, however, the number of brushes and conductive rings is not limited thereto, and may be any other number.
The pressure of the electric brush can be 17.0-67.0 kPa, the surface roughness of the conducting ring is better than 0.4, and the coaxiality of the working surface of the conducting ring and the base 101 is better than 0.1. In addition, the conducting ring is made of silver-copper-nickel alloy, and the electric brush is made of copper-graphite composite material.
The cable 203 is internally provided with a conductor bundle, one end of the conductor bundle is provided with a connector, the other end of the conductor bundle is directly connected with equipment, the aramid fiber woven sleeve is sleeved outside the conductor bundle, a spring is sleeved outside the aramid fiber woven sleeve, the outer sheath is sleeved outside the spring, the spring and the outer sheath are of an integrated structure, one end part of the spring is connected with the connector, and the other end part of the spring is connected with the equipment. Patent application CN 109599217 a published in 2019, 4, 9, and "a cable structure capable of rotating at high speed" specifically describes the structure of the cable 203, and the disclosure of the patent application is incorporated herein by reference in its entirety.
Before the electric brush is installed in a machine, the ground is ideally ground sufficiently to ensure that the electric brush is in good contact with the conducting ring.
Claims (8)
1. A helicopter tail rotor anti-icing collector ring comprises a rotor (1), an outer cover (2) and an electric brush box (4), and is characterized in that the rotor (1) is provided with a base (101), a conductive ring assembly (102) is stacked on the columnar outer wall at the upper end of the base (101), a pressure plate (104) and a baffle disc (105) are arranged at the upper end of the conductive ring assembly (102), and the conductive ring assembly (102), the pressure plate (104) and the baffle disc (105) are fixed on the base (101) together; a cable (107) is led out from the lower end of the base (101), a lead in the cable (107) is connected with a binding post (106) on each conducting ring assembly, and an end cover (108) is fixed at the lower end of the base (101); the electric brush box (4) is arranged on one side of the outer cover (3), a sealing gasket (3) is arranged between the electric brush box (4), and the electric brush box (4) can be replaced or maintained independently.
2. The helicopter tail rotor anti-icing collector ring according to claim 1, characterized in that the outer cover (2) is mounted on the tail reducer, the brush box (4) is connected with the helicopter body cable through a socket; the rotor (1) is arranged on a tail rotor hub, and the cable (107) is connected with the corresponding tail rotor blade through a plug and rotates at a high speed along with the blade; an axial installation gap is reserved between the rotor (1) and the outer cover (2).
3. Helicopter tail rotor anti-icing manifold according to claim 1, characterized in that the brush box (4) comprises 9 sets of 2 brushes each.
4. A helicopter tail rotor anti-icing manifold according to claim 3, characterized in that said conductive ring assemblies (102) are 9 in number, each molded from a conductive ring and an insulating material.
5. The helicopter tail rotor anti-icing manifold of claim 3, wherein the brush pressure is 17.0 to 67.0kPa and the brush is a copper-graphite composite.
6. The helicopter tail rotor anti-icing collector ring according to claim 4, characterized in that the conductive ring material is silver copper nickel alloy, the conductive ring surface roughness is not less than 0.4, and the coaxiality of the conductive ring working surface and the base (101) is not less than 0.1.
7. The helicopter tail rotor anti-icing collector ring according to claim 1, characterized in that cables (107) are evenly distributed around the base (101), a wire bundle is arranged in the cables (107), one end of the wire bundle is led out from the base (101), the other end of the wire bundle is provided with a connector, an aramid woven sleeve, a spring and an outer sheath are sequentially sleeved on the outer side of the wire bundle, the spring and the outer sheath are of an integrated structure, one end of the spring is connected with the connector, and the other end of the spring is connected with the base (101).
8. The helicopter tail rotor anti-icing collector ring according to claim 1, characterized in that the brush box (4) is provided with a brush box outer cover (401), a socket (402) and a brush holder (406) are arranged on the brush box outer cover (401), a connecting terminal (404) and a brush holder (407) are arranged on the brush holder (406), a flat spiral spring (408) is fixed on the brush holder (407) and presses the brush (409) to ensure that the brush (409) is reliably contacted with the corresponding conducting ring assembly (102); leads on the brush (409) are connected to wires on the socket (402) by terminals (404).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911323253.1A CN111137459A (en) | 2019-12-19 | 2019-12-19 | Helicopter tail rotor anti-icing collector ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911323253.1A CN111137459A (en) | 2019-12-19 | 2019-12-19 | Helicopter tail rotor anti-icing collector ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111137459A true CN111137459A (en) | 2020-05-12 |
Family
ID=70519107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911323253.1A Pending CN111137459A (en) | 2019-12-19 | 2019-12-19 | Helicopter tail rotor anti-icing collector ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111137459A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706928A (en) * | 2020-12-16 | 2021-04-27 | 武汉航空仪表有限责任公司 | Tail rotor collector ring, control method thereof and helicopter |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2456337Y (en) * | 2000-06-28 | 2001-10-24 | *** | Central current collecting ring |
| US20030230668A1 (en) * | 2002-04-12 | 2003-12-18 | Mario Fabiani | Helicopter electric connecting unit, and helicopter equipped with such a connecting unit |
| CN201096846Y (en) * | 2007-10-08 | 2008-08-06 | 南阳防爆集团有限公司 | High-capacity synchronous generator grounding detection device |
| CN201656215U (en) * | 2010-03-05 | 2010-11-24 | 大连天元电机股份有限公司 | Novel collecting ring |
| US9263838B1 (en) * | 2015-04-28 | 2016-02-16 | Princetel, Inc. | Slip ring for high speed data transmission |
| CN105841948A (en) * | 2016-05-16 | 2016-08-10 | 宁波星箭航天机械有限公司 | Helicopter rotor hub bridle test board and test method therefor |
| CN106329267A (en) * | 2015-07-02 | 2017-01-11 | 肯达克蒂科斯万普弗勒公司 | Isostatic brush holder for rotating electrical slip ring assemblies |
| CN107064760A (en) * | 2017-04-28 | 2017-08-18 | 北京航天控制仪器研究所 | A kind of accurate device for quick testing of high integration conducting ring assemblies conducting insulation |
| CN109599217A (en) * | 2018-12-07 | 2019-04-09 | 武汉航空仪表有限责任公司 | One kind can the high-speed rotating construction of cable |
-
2019
- 2019-12-19 CN CN201911323253.1A patent/CN111137459A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2456337Y (en) * | 2000-06-28 | 2001-10-24 | *** | Central current collecting ring |
| US20030230668A1 (en) * | 2002-04-12 | 2003-12-18 | Mario Fabiani | Helicopter electric connecting unit, and helicopter equipped with such a connecting unit |
| CN201096846Y (en) * | 2007-10-08 | 2008-08-06 | 南阳防爆集团有限公司 | High-capacity synchronous generator grounding detection device |
| CN201656215U (en) * | 2010-03-05 | 2010-11-24 | 大连天元电机股份有限公司 | Novel collecting ring |
| US9263838B1 (en) * | 2015-04-28 | 2016-02-16 | Princetel, Inc. | Slip ring for high speed data transmission |
| CN106329267A (en) * | 2015-07-02 | 2017-01-11 | 肯达克蒂科斯万普弗勒公司 | Isostatic brush holder for rotating electrical slip ring assemblies |
| CN105841948A (en) * | 2016-05-16 | 2016-08-10 | 宁波星箭航天机械有限公司 | Helicopter rotor hub bridle test board and test method therefor |
| CN107064760A (en) * | 2017-04-28 | 2017-08-18 | 北京航天控制仪器研究所 | A kind of accurate device for quick testing of high integration conducting ring assemblies conducting insulation |
| CN109599217A (en) * | 2018-12-07 | 2019-04-09 | 武汉航空仪表有限责任公司 | One kind can the high-speed rotating construction of cable |
Non-Patent Citations (1)
| Title |
|---|
| 夏福梯: "《防空导弹制导雷达伺服***》", 31 March 1996, 北京：宇航出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706928A (en) * | 2020-12-16 | 2021-04-27 | 武汉航空仪表有限责任公司 | Tail rotor collector ring, control method thereof and helicopter |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200512 |