CN108281866A - A kind of electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue - Google Patents
A kind of electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue Download PDFInfo
- Publication number
- CN108281866A CN108281866A CN201711445379.7A CN201711445379A CN108281866A CN 108281866 A CN108281866 A CN 108281866A CN 201711445379 A CN201711445379 A CN 201711445379A CN 108281866 A CN108281866 A CN 108281866A
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- China
- Prior art keywords
- carbon block
- carbon
- conducting wire
- spring
- sliding slot
- Prior art date
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Classifications
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- 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
- H01R39/26—Solid sliding contacts, e.g. carbon brush
-
- 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
-
- 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
- H01R39/38—Brush holders
- H01R39/40—Brush holders enabling brush movement within holder during current collection
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
The invention discloses a kind of electronic variable-pitch propeller carbon brush configurations of anti-vibration fatigue, are made of brush carrier, cover board and carbon block component etc..Wherein, brush carrier top is provided with carbon block sliding slot, is provided with the conformal slot of spring in the middle part of carbon block sliding slot, telescopic moving track is provided for carbon block component.Further, brush carrier side rear lower portion is provided with threaded hole, is fastenedly connected by screw and cover board, forms complete rectangle sliding slot, and there are trepannings on cover board, are pierced by for carbon block conducting wire.In addition, carbon block conducting wire uses litzendraht wire, spring and plastic bushing to be through successively on carbon block conducting wire, carbon block free telescopic moving in carbon block sliding slot, carbon block conducting wire is freely pierced by by the hole on cover board.The electronic variable-pitch propeller carbon brush configuration of the present invention, it is simple in structure, that installation is replaced is convenient, anti-vibration fatigue capability is strong, portable good, can electronic variable-pitch propeller and cluster engine at harsh vibration environment under reliably use.
Description
Technical field
The invention belongs to aviation aircraft mechanism technology field more particularly to a kind of electronic variable-pitch propellers of anti-vibration fatigue
Paddle carbon brush configuration.
Background technology
Electronic variable-pitch propeller is one kind in variable-pitch propeller, usually by displacement motor be mounted on propeller hub ontology on
Propeller rotates together with, and realizes power supply and control of the airborne equipment to displacement motor by carbon brush-slip ring structure, reaches control
The purpose of revolution speed of propeller.Carbon brush-slip ring structure is the common structure form realized static element and be conductively connected with revolving part, is being sent out
Motor field is widely used, slip ring be along the continuously distributed one week conductive strips in direction of rotation, can be with after being contacted with carbon brush carbon block
Ensure that this circuit is in the conduction state always in rotary course, carbon brush carbon block is usually kept with slip ring under spring force
Reliable contacts, carbon block abrasion automatic forward feed can be replaced after carbon block is too short under the action of the spring after shortening.In aviation
The carbon brush configuration of field application has more stringent requirement in terms of size, reliability and vibration environment.
Domestic and international electronic variable-pitch propeller is typically each with reference to self structure size characteristics equipped with carbon brush configuration.Different designs
The carbon brush configuration of scheme is distinct in reliability, maintainability and use cost.Because to engine prop vibration environment
Consider that carbon block wire fracture failure frequently even occur in deficiency, external a electronic variable-pitch propeller.
The realization of the carbon brush reliability effect aircraft propellers rotational speed regulation function of electronic variable-pitch propeller, to aircraft
Safety is of great significance.Carbon brush carbon block belongs to wearing detail, replaces whether convenient and replacement cost is to improve aircraft scene
Maintenance efficiency, an important link for reducing maintenance cost.
Invention content
The technology of the present invention solves the problems, such as：Overcome the deficiencies of the prior art and provide a kind of electronic displacement of anti-vibration fatigue
Propeller carbon brush configuration, simple in structure, installation replacement is convenient, anti-vibration fatigue capability is strong, portable good, can be in electronic change
Away from propeller and cluster engine at harsh vibration environment under reliably use, can be in a variety of electronic changes after adjustment structure size design
Away from being used on propeller.
In order to solve the above-mentioned technical problem, the invention discloses a kind of electronic variable-pitch propeller carbon brush of anti-vibration fatigue dresses
It sets, including：Brush carrier (1), carbon block (2), the carbon block conducting wire (21) being connect with carbon block (2), spring (3), plastic bushing (4) and cover board
(5)；
The top of brush carrier (1) is provided with carbon block sliding slot (7), and the conformal slot of spring (8) is provided in the middle part of carbon block sliding slot (7)；
In carbon block sliding slot (7), carbon block (2) can be along carbon block sliding slot (7) telescopic moving for carbon block (2) setting；
Cover board (5) is fastenedly connected with brush carrier (1) by screw (6), and complete rectangle sliding slot is formed；Wherein, cover board (5)
There are trepanning (51) for side, are pierced by for carbon block conducting wire (21)；
Spring (3) and plastic bushing (4) are through successively on carbon block conducting wire (21), and carbon block conducting wire (21) can pass through plastic bushing
(4) endoporus is freely pierced by.
In the electronic variable-pitch propeller carbon brush configuration of above-mentioned anti-vibration fatigue,
Carbon block sliding slot (7) is straight slot；
The conformal slot of spring (8) is the groove of bottom end closure.
In the electronic variable-pitch propeller carbon brush configuration of above-mentioned anti-vibration fatigue,
Spring (3) setting is in the conformal slot of spring (8)；Wherein, carbon block (2) be not pressed into carbon block sliding slot (7) it is interior when, spring
(3) both ends are limited by the cylinder step (41) of the boundary of the conformal slot of spring (8) and plastic bushing (4) position respectively；In carbon
When block (2) indentation carbon block sliding slot (7) is interior, spring (3) both ends pass through the boss (22) and plastic bushing of carbon block (2) root respectively
(4) cylinder step (41) limitation positioning；
Plastic bushing (4) both ends limit positioning by the trepanning (51) on spring (3) and cover board (5) respectively.
In the electronic variable-pitch propeller carbon brush configuration of above-mentioned anti-vibration fatigue,
Carbon block (2) and the lateral clearance of rectangle sliding slot are less than 0.1mm.
In the electronic variable-pitch propeller carbon brush configuration of above-mentioned anti-vibration fatigue,
Carbon block conducting wire (21) is litzendraht wire.
In the electronic variable-pitch propeller carbon brush configuration of above-mentioned anti-vibration fatigue,
Carbon block (2) and the type of attachment of carbon block conducting wire (21) are flush type, and carbon block conducting wire (21) uses carbon dust in carbon block (2)
It is embedded to when die cast；Wherein, the embedment length of carbon block conducting wire (21) is the half of carbon block (2) length.
In the electronic variable-pitch propeller carbon brush configuration of above-mentioned anti-vibration fatigue, further include：Insulated hull I (10) and insulated hull
Ⅱ(11)
Insulated hull I (10) is wrapped on the outside of the boss (22) of carbon block (2) root；
Insulated hull II (11) is wrapped in the outside of carbon block conducting wire (21).
The present invention has the following advantages：
(1) the electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue of the present invention, simple in structure, installation replacement side
Just.
(2) the electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue of the present invention, carbon block conducting wire are litzendraht wire, and
Carbon block conducting wire can freely be pierced by brush carrier, and anti-vibration fatigue capability is strong, and reliability is high.
(3) the electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue of the present invention, brush carrier mounting design portable
Property it is strong, according to the slip ring size of different model propeller require, can quickly complete carbon brush configuration design.
Description of the drawings
Fig. 1 is a kind of structural representation of the electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue in the embodiment of the present invention
Figure；
Fig. 2 is a kind of exploded pictorial of the electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue in the embodiment of the present invention
Figure；
Fig. 3 is a kind of structural schematic diagram of brush carrier in the embodiment of the present invention；
Fig. 4 is a kind of connection diagram of carbon block and carbon block conducting wire in the embodiment of the present invention.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, public to the present invention below in conjunction with attached drawing
Embodiment is described in further detail.
The invention discloses a kind of electronic variable-pitch propeller carbon brush configurations of anti-vibration fatigue, by brush carrier, cover board and carbon block
The compositions such as component.Wherein, brush carrier top is provided with carbon block sliding slot, and the conformal slot of spring is provided in the middle part of carbon block sliding slot, is carried for carbon block component
For telescopic moving track.Further, brush carrier side rear lower portion is provided with threaded hole, is fastenedly connected by screw and cover board, is formed
Complete rectangle sliding slot, there are trepannings on cover board, are pierced by for carbon block conducting wire.In addition, carbon block conducting wire uses litzendraht wire, spring and modeling
Material casing is through successively on carbon block conducting wire, and carbon block free telescopic moving in carbon block sliding slot, carbon block conducting wire passes through the hole on cover board
Freely it is pierced by.Convenient, anti-vibration fatigue capability is replaced in the electronic variable-pitch propeller carbon brush configuration of the present invention, simple in structure, installation
By force, portable good, can electronic variable-pitch propeller and cluster engine at harsh vibration environment under reliably use.
Referring to Fig.1, a kind of electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue in the embodiment of the present invention is shown
Structural schematic diagram；With reference to Fig. 2, show it is a kind of electronic variable-pitch propeller carbon brush dress of anti-vibration fatigue in the embodiment of the present invention
The decomposition diagram set；With reference to Fig. 3, show it is a kind of structural schematic diagram of brush carrier in the embodiment of the present invention.In the present embodiment
In, the electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue, including：Brush carrier 1, carbon block 2, the carbon block conducting wire being connect with carbon block 2
21, spring 3, plastic bushing 4 and cover board 5.
Such as Fig. 1~3, the top of brush carrier 1 is provided with carbon block sliding slot 7, and 7 middle part of carbon block sliding slot is provided with the conformal slot of spring 8.Carbon block 2
It is arranged in carbon block sliding slot 7, carbon block 2 can be along 7 telescopic moving of carbon block sliding slot.Cover board 5 is fastenedly connected with brush carrier 1 by screw 6, group
At complete rectangle sliding slot；Wherein, there are trepannings 51 for the side of cover board 5, are pierced by for carbon block conducting wire 21.Spring 3 and plastic bushing 4
It is through successively on carbon block conducting wire 21, carbon block conducting wire 21 can be freely pierced by by the endoporus of plastic bushing 4.
In the preferred embodiment of the present invention, such as Fig. 3, carbon block sliding slot 7 is straight slot；The conformal slot 8 of spring is bottom end closure
Groove.
In the preferred embodiment of the present invention, such as Fig. 2 and Fig. 3, spring 3 may be provided in the conformal slot of spring 8.Wherein,
When carbon block 2 is not pressed into carbon block sliding slot 7,3 both ends of spring pass through the boundary of the conformal slot of spring 8 and plastic bushing 4 respectively
The limitation positioning of cylinder step 41.When carbon block 2 is pressed into carbon block sliding slot 7,3 both ends of spring pass through the boss of 2 root of carbon block respectively
22 and plastic bushing 4 cylinder step 41 limitation positioning.Further, 4 both ends of plastic bushing pass through spring 3 and lid respectively
The limitation positioning of trepanning 51 on plate 5.
In the present embodiment, the conformal slot 8 of spring coordinates plastic bushing 4 to realize installation of the spring 3 in carbon block sliding slot 7 fixed
Position, and keep spring 3 for Linear scaling in 2 telescopic process of carbon block, it does not glance off, avoids damage to carbon block conducting wire 21.
Further, in the present embodiment, carbon block 2 is in the carbon block sliding slot 7 of brush carrier 1 when stretching motion, carbon block conducting wire 21
It can be freely pierced by cover board 5 by the endoporus of plastic bushing 4, carbon block conducting wire 21 can be avoided to occur acutely to bend, reduce carbon block 2
It connect the folding s tress of root with carbon block conducting wire 21, improves the bending fatigue service life of carbon block conducting wire 21.
In addition, spring 3 is through with plastic bushing 4 on carbon block conducting wire 21, it is conveniently replaceable after the normal work abrasion of carbon block 2.
In the preferred embodiment of the present invention, carbon block 2 and the lateral clearance of rectangle sliding slot are less than 0.1mm.
In the present embodiment, carbon block 2 and the lateral clearance of rectangle sliding slot are less than 0.1mm, carbon under vibration environment can be avoided
Oscillation crosswise and impact of the block 2 relative to brush carrier 1 keep carbon block 2 complete, avoid collapsing the failure damages such as tooth, fragmentation.
In the preferred embodiment of the present invention, carbon block conducting wire 21 is litzendraht wire.
In the present embodiment, carbon block conducting wire 21 is litzendraht wire, has good bend resistance fatigue behaviour, can be in strong vibration ring
Reliably working under border.
In the preferred embodiment of the present invention, carbon block 2 and the type of attachment of carbon block conducting wire 21 are flush type, carbon block conducting wire
21 are embedded to when carbon block 2 is using carbon dust die cast.Wherein, the embedment length of carbon block conducting wire 21 be 2 length of carbon block two/
One.
In the preferred embodiment of the present invention, with reference to Fig. 4, show that a kind of carbon block is led with carbon block in the embodiment of the present invention
The connection diagram of line.The electronic variable-pitch propeller carbon brush configuration of the anti-vibration fatigue can also include：I 10 He of insulated hull
Insulated hull II 11.
Such as Fig. 4, insulated hull I 10 is wrapped in 22 outside of boss of 2 root of carbon block；Insulated hull II 11 is wrapped in carbon block conducting wire 21
Outside.
Based on above-described embodiment, for purposes of illustration only, fight the electronic variable-pitch propeller carbon brush configuration of vibrating fatigue below
Assembling process is briefly described.Wherein, assembling process specifically can be as follows：
1 by spring 3 and casing 4, the order with reference to shown in Fig. 2 is through on carbon block conducting wire 21, is paid attention to 3 end sleeve of spring in carbon
On the boss 22 of 2 root of block.
2 are put into carbon block 2 and spring 3 in the carbon block sliding slot 7 in brush carrier 1, notice that spring 3 will be put into the conformal slot of spring 8
In.
Carbon block conducting wire 21 and plastic bushing 4 are each passed through endoporus corresponding with carbon block sliding slot 7 51 on cover board 5 by 3.
4 cover board 5 is bonded with brush carrier 1 after fastened using screw 6, fitting during pay attention to by 3 end sleeve of spring in plastics
On the cylinder step 41 of casing 4.
After the completion of the fastening of 5 screws 6, to carbon block sliding slot 7 inside press carbon block 2, enable carbon block 2 in the carbon block sliding slot 7 from
Endoporus 51 on cover board 5 can be pierced by with 2 freedom of motion of carbon block by stretching motion and carbon block conducting wire 21, carbon brush configuration is completed.
Wherein, it should be noted that such as Fig. 3, carbon block sliding slot 7 is rectangular straight slot, along carbon block telescopic direction, carbon block sliding slot 7
Center side position is provided with the conformal slot 8 of spring, and the conformal slot of spring 8 is not straight slot, and the conformal slot of spring 8 can be used as the installation of spring 3
With flexible limitation track.When carbon block compressed spring, spring keeps straight line compressive deformation, carbon block not to compress bullet in the conformal slot of spring
When spring, spring is limited in by conformal slot in carbon block sliding slot.
Further, the electronic variable-pitch propeller carbon brush configuration of the anti-vibration fatigue after assembling is fixed on by mounting bracket
Near propeller slip ring, carbon brush carbon block is pressed respectively against on the different conducting slip ring of propeller, carbon block conducting wire and airborne equipment cable
Connection builds circuit loop, plays the function of the electronic variable-pitch propeller carbon brush configuration of the anti-vibration fatigue.
In conclusion the electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue of the present invention, simple in structure, installation
It is convenient to replace.Secondly, the electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue of the present invention, carbon block conducting wire are braiding
Line, and carbon block conducting wire can freely be pierced by brush carrier, anti-vibration fatigue capability is strong, and reliability is high.In addition, antivibration of the present invention
The electronic variable-pitch propeller carbon brush configuration of fatigue is moved, brush carrier mounting design is portable strong, according to the cunning of different model propeller
Ring size requirement can quickly complete carbon brush configuration design.
Each embodiment in this explanation is described in a progressive manner, the highlights of each of the examples are with its
The difference of his embodiment, the same or similar parts between the embodiments can be referred to each other.
The above, best specific implementation mode only of the invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.
The content that description in the present invention is not described in detail belongs to the known technology of professional and technical personnel in the field.
Claims (7)
1. a kind of electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue, which is characterized in that including：Brush carrier (1), carbon block (2),
Carbon block conducting wire (21), spring (3), plastic bushing (4) and the cover board (5) being connect with carbon block (2)；
The top of brush carrier (1) is provided with carbon block sliding slot (7), and the conformal slot of spring (8) is provided in the middle part of carbon block sliding slot (7)；
In carbon block sliding slot (7), carbon block (2) can be along carbon block sliding slot (7) telescopic moving for carbon block (2) setting；
Cover board (5) is fastenedly connected with brush carrier (1) by screw (6), and complete rectangle sliding slot is formed；Wherein, the side of cover board (5)
There are trepanning (51), are pierced by for carbon block conducting wire (21)；
Spring (3) and plastic bushing (4) are through successively on carbon block conducting wire (21), and carbon block conducting wire (21) can pass through plastic bushing (4)
Endoporus be freely pierced by.
2. the electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue according to claim 1, which is characterized in that
Carbon block sliding slot (7) is straight slot；
The conformal slot of spring (8) is the groove of bottom end closure.
3. the electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue according to claim 1, which is characterized in that
Spring (3) setting is in the conformal slot of spring (8)；Wherein, carbon block (2) be not pressed into carbon block sliding slot (7) it is interior when, spring (3)
Both ends are limited by the cylinder step (41) of the boundary of the conformal slot of spring (8) and plastic bushing (4) position respectively；In carbon block
(2) when indentation carbon block sliding slot (7) is interior, spring (3) both ends pass through the boss (22) and plastic bushing of carbon block (2) root respectively
(4) cylinder step (41) limitation positioning；
Plastic bushing (4) both ends limit positioning by the trepanning (51) on spring (3) and cover board (5) respectively.
4. the electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue according to claim 1, which is characterized in that
Carbon block (2) and the lateral clearance of rectangle sliding slot are less than 0.1mm.
5. the electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue according to claim 1, which is characterized in that
Carbon block conducting wire (21) is litzendraht wire.
6. the electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue according to claim 1, which is characterized in that
Carbon block (2) and the type of attachment of carbon block conducting wire (21) are flush type, and carbon block conducting wire (21) uses carbon dust die casting in carbon block (2)
It is embedded to when molding；Wherein, the embedment length of carbon block conducting wire (21) is the half of carbon block (2) length.
7. the electronic variable-pitch propeller carbon brush configuration of anti-vibration fatigue according to claim 1, which is characterized in that also wrap
It includes：Insulated hull I (10) and insulated hull II (11)
Insulated hull I (10) is wrapped on the outside of the boss (22) of carbon block (2) root；
Insulated hull II (11) is wrapped in the outside of carbon block conducting wire (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711445379.7A CN108281866B (en) | 2017-12-27 | 2017-12-27 | Vibration fatigue resistant electric variable pitch propeller carbon brush device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711445379.7A CN108281866B (en) | 2017-12-27 | 2017-12-27 | Vibration fatigue resistant electric variable pitch propeller carbon brush device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108281866A true CN108281866A (en) | 2018-07-13 |
| CN108281866B CN108281866B (en) | 2020-04-10 |
Family
ID=62802399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711445379.7A Active CN108281866B (en) | 2017-12-27 | 2017-12-27 | Vibration fatigue resistant electric variable pitch propeller carbon brush device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108281866B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114498230A (en) * | 2021-12-20 | 2022-05-13 | 中国航天空气动力技术研究院 | Electric brush device |
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| CN2543249Y (en) * | 2002-04-30 | 2003-04-02 | 王厚立 | DC Permanent-magnet speed-reducing motor |
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| CN114498230B (en) * | 2021-12-20 | 2023-10-17 | 中国航天空气动力技术研究院 | Electric brush device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108281866B (en) | 2020-04-10 |
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