CN106678202B - A kind of dedicated low rotation speed large torque clutch of helicopter - Google Patents
A kind of dedicated low rotation speed large torque clutch of helicopter Download PDFInfo
- Publication number
- CN106678202B CN106678202B CN201611265377.5A CN201611265377A CN106678202B CN 106678202 B CN106678202 B CN 106678202B CN 201611265377 A CN201611265377 A CN 201611265377A CN 106678202 B CN106678202 B CN 106678202B
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- Prior art keywords
- clutch
- block
- friction plate
- rid
- friction
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D47/00—Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the preceding guide headings
- F16D47/02—Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the preceding guide headings of which at least one is a coupling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
- B64C27/12—Rotor drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
- F16D43/06—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating axially a movable pressure ring or the like
- F16D43/08—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating axially a movable pressure ring or the like the pressure ring actuating friction plates, cones or similar axially-movable friction surfaces
- F16D43/10—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating axially a movable pressure ring or the like the pressure ring actuating friction plates, cones or similar axially-movable friction surfaces the centrifugal masses acting directly on the pressure ring, no other actuating mechanism for the pressure ring being provided
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The present invention discloses a kind of dedicated low rotation speed large torque clutch of helicopter, it includes engine connection and support system, friction plate and centrifugal block for clutch use system and flexible clutch system；Engine connection and support system, flexible clutch system are mounted on friction plate and centrifugal block for clutch use system.The problem of can not being suitable for low rotation speed large torque operating condition present invention mainly solves conventional centrifuge clutch, amplify the pressure for generating frictional force using lever principle, to provide higher torque in the lower situation of revolving speed；Using multi-stage friction piece, increase contact area, enhances torque transmission capacity；Reset spring rigidity is adjustable, it can it is set as different combination revolving speeds, it is adaptable to adapt to different operating conditions.In addition, the present invention also has many advantages, such as structure simple, low cost, light-weight, easy to maintain.
Description
Technical field
The present invention relates to technical field of aerospace, more particularly to a kind of dedicated low rotation speed large torque clutch of helicopter.
Background technique
Centrifugal clutch arrangement is simple, compact dimensions, and the revolving speed for controlling engine just can control it to combine or separate, nothing
Need special operating mechanism.It can skid automatically after overload, protection engine is without damage.So being applied in small-sized machine field
Extensively, centrifugal clutch is also generallyd use on small-sized depopulated helicopter at present.
Centrifugal clutch transmits torque by frictional force, as shown in Figure 1, its basic structure is made of three elements:
Driving link, centrifugation body and driven member.It is sliding loaded on driving link to be centrifuged body, by prime mover driven driving link spin up and by its diameter
To throwing away.When driving link reaches regulation angular speed, the centrifugation body that throws away and driven member inner wall are compressed, by frictional force force its into
Enter motion state and transmits torque.The driven member of clutch can be connected directly or by the mechanisms such as belt pulley and load.
But for certain helicopter engines, revolving speed is lower and the torque of transmitting is larger；According to conventional centrifugal
Formula clutch causes centrifugation body centrifugal force less than normal since revolving speed is low, and the frictional force of generation is not enough to that driven member is driven to enter work
State.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of dedicated low rotation speed large torque clutches of helicopter
Device is solved the problems, such as that conventional centrifuge clutch can not be suitable for low rotation speed large torque operating condition, is amplified using lever principle and produced
The pressure of raw frictional force, to provide higher torque in the lower situation of revolving speed；Using multi-stage friction piece, increase contact surface
Product enhances torque transmission capacity；Reset spring rigidity is adjustable, it can it is set as different combination revolving speeds, to adapt to different operating conditions,
It is adaptable.In addition, the present invention also has many advantages, such as structure simple, low cost, light-weight, easy to maintain.
The technical scheme adopted by the invention is that: a kind of dedicated low rotation speed large torque clutch of helicopter, main includes hair
Motivation connection and support system, friction plate and centrifugal block for clutch use system and flexible clutch system.Its position connection relationship are as follows: hair
Motivation connection and support system, flexible clutch system are mounted on friction plate and centrifugal block for clutch use system.
The engine connection and support system, including flange terminal pad, clutch transfer panel and spring bearing.Flange
It is connected on the right side of terminal pad with engine output shaft, left side and clutch transfer panel are connected, and it acts as pass the power of engine
It is delivered on clutch transfer panel.Two spring bearings are installed side by side, inner ring is matched with clutch transfer panel on clutch transfer panel
It closes, outer ring and friction plate and gets rid of block system and cooperate, to ensure clutch transfer panel and friction plate in clutch separation state
With get rid of being freely rotated for block system.
The friction plate and centrifugal block for clutch use system, including friction chip part and centrifugal block for clutch use component.The friction chip part,
Including inner attrition piece, outside friction disc, friction plate gland, serves and reset spring；The centrifugal block for clutch use component, including get rid of
Block rocker arm, rocker shaft and get rid of block.Inner attrition piece and outside friction disc are staggered, and totally three layers；It gets rid of block one end and passes through rocker arm
Shaft is connected on clutch transfer panel, can be rotated around rocker shaft, the other end and is got rid of block and is connected and is stuck on friction plate gland,
When engine rotates, the pressure being pressed on friction plate gland is converted by the centrifugal force for getting rid of block generation using leverage, thus
Each layer friction plate is compressed, inner attrition piece rotation is driven；Reset spring is between clutch transfer panel and friction plate gland, stalling
Or reduce each friction pole sheet pressure when the slow-speed of revolution, prevent its engagement；Spline is mounted on serves external splines on the inside of inner attrition piece
On, torque is transmitted by spline；It is mounted on the inside of serves in engine connection and support system on the outer ring of spring bearing.
The flexible clutch system, form are plum coupling, including input shaft end, output shaft end and intermediate bullet
Property body.Input shaft end and output shaft end respectively with intermediate elastomeric fitting, using the characteristics of intermediate elastomeric elastically deformable
Axial direction, radial direction and circumferential deviation are compensated while transmitting torque.Input shaft end and serves are connected, output shaft end
It is connected with helicopter reducer gear shaft.
Advantage and effect: compared with prior art, the present invention, which solves conventional centrifuge clutch, can not be suitable for low turn
The problem of fast large torque operating condition, amplifies the pressure for generating frictional force using lever principle, to mention in the lower situation of revolving speed
For higher torque；Using multi-stage friction piece, increase contact area, enhances torque transmission capacity；Reset spring rigidity is adjustable, it can
It is set as different combination revolving speeds, it is adaptable to adapt to different operating conditions.In addition, the present invention also has, structure is simple, cost
The advantages that low, light-weight, easy to maintain.
Detailed description of the invention
Fig. 1 conventional centrifuge clutch sectional view；
Fig. 2 conventional centrifuge clutch side view；
The dedicated low rotation speed large torque clutch sectional view of Fig. 3 helicopter；
The dedicated low rotation speed large torque clutch side view of Fig. 4 helicopter；
The dedicated low rotation speed large torque clutch front view of Fig. 5 helicopter；
The dedicated low rotation speed large torque clutch rearview of Fig. 6 helicopter；
The dedicated low rotation speed large torque clutch subsystem broken away view of Fig. 7 helicopter；
Fig. 8 inner attrition piece and serves spline fitted schematic diagram；
Fig. 9 gets rid of block rocker cam structural schematic diagram；
Figure 10 cohesive process force analysis figure；
Figure 11 outside friction disc gets rid of block rocker arm and clutch terminal pad installation graph.
Sign flag is as follows in figure:
1- engine output shaft；2- flange terminal pad；3- clutch transfer panel；4- spring bearing；5- inner attrition piece；Outside 6-
Friction plate；7- friction plate gland；8- gets rid of block rocker arm；9- gets rid of block；10- reset spring；11- serves；12- input shaft end；13-
Output shaft end；14- intermediate elastomeric；15- helicopter reducer gear shaft；The connection of 16- engine and support system；17- friction
Piece and centrifugal block for clutch use system；18- flexible clutch system；19- external splines；20- internal spline；21 rocker shafts；22- centrifugal force；
23- pressing force；24- elastic anchorage force.
Specific embodiment
Preferred embodiment of the present invention will be described with reference to the accompanying drawing, it should be understood that preferred implementation described herein
Example is only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
See Fig. 1-Fig. 2, in order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of dedicated slow-speed of revolution of helicopter
Large torque clutch, compared with prior art, the present invention, which solves conventional centrifuge clutch, can not be suitable for the big torsion of the slow-speed of revolution
The problem of square operating condition, amplifies the pressure for generating frictional force using lever principle, to provide in the lower situation of revolving speed higher
Torque；Using multi-stage friction piece, increase contact area, enhances torque transmission capacity；Reset spring rigidity is adjustable, it can is set as
Different combination revolving speeds, it is adaptable to adapt to different operating conditions.In addition, the present invention also has structure simple, low cost, again
Measure the advantages that light, easy to maintain.
Referring to Fig. 3-Fig. 7, it connect and props up with the engine of the dedicated low rotation speed large torque clutch of the helicopter of the present embodiment
Support system 16 mainly consists of: 2 right side of flange terminal pad is connect with engine output shaft 1, and left side and clutch transfer panel 3 are logical
It crosses and is bolted, it acts as the power of engine is transmitted on clutch transfer panel 3.Pacify side by side on clutch transfer panel 3
Filling two spring bearings 4, inner ring and clutch transfer panel 3 cooperate, and it outer ring and friction plate and gets rid of block system 17 and cooperates, to
Ensure clutch transfer panel 3 and friction plate in clutch separation state and gets rid of being freely rotated for block system 17.
It is main with the friction plate and centrifugal block for clutch use system 17 of the dedicated low rotation speed large torque clutch of helicopter of the present embodiment
Constitute as follows: inner attrition piece 5 and outside friction disc 6 are staggered, and totally three layers；It gets rid of 8 one end axis of block rocker arm and is connected in clutch transfer panel 3
On, it can be rotated around rocker shaft 21, the other end and get rid of block 9 and be connected and be stuck in 7 on friction plate gland, when engine operation, utilized
Leverage is converted into the pressure being pressed on friction plate gland 7 for the centrifugal force that block 9 generates is got rid of, so that each layer friction plate is compressed,
Inner attrition piece 5 is driven to rotate；Reset spring 10 is between clutch transfer panel 3 and friction plate gland 7, stalling or when the slow-speed of revolution
Reduce each friction pole sheet pressure, prevents its engagement；5 inside spline of inner attrition piece is mounted on 11 external splines of serves, is passed through
Spline transmits torque；It is mounted on the inside of serves 11 in engine connection and support system 16 on the outer ring of spring bearing 4.
Such as with 18 main composition of flexible clutch system of the dedicated low rotation speed large torque clutch of helicopter of the present embodiment
Under: input shaft end 12 and output shaft end 13 utilize the spy of intermediate elastomeric elastically deformable respectively with 14 fitting of intermediate elastomeric
Point compensates axial direction, radial direction and axial deviation while transmitting torque.Input shaft end 12 and serves are connected, defeated
Shaft end 13 and helicopter reducer gear shaft 15 are connected out.
Referring to Fig. 3-Fig. 7, the clutch course of work of the present embodiment is as follows:
Before engine start, using the elastic anchorage force 24 of reset spring 10 by clutch transfer panel 3 and friction plate gland 7
It struts, no pressure between inner attrition piece 5 and outside friction disc 6, thus zerofriction force.Referring to Fig. 8, it is machined on the inside of inner attrition piece 5
Internal spline 20, serves 11 are machined with external splines 19, and spline fitted is to be slidably matched herein, i.e., spline can be in circumferential transmitting
Also inner attrition piece 5 is allowed to be axially moved along serves 11 while torque.
After engine start, engine output shaft 1 drives the flange terminal pad 2 connected with it to rotate together, at the same time
Clutch transfer panel 3 and flange terminal pad 2 rotate synchronously；It gets rid of block rocker arm 8 and gets rid of block 9 and generate centrifugation due to obtaining angular speed
Power 22 gets rid of block rocker arm 8 and gets rid of block 9 and move out around rocker shaft 21, by the thick stick for getting rid of block rocker arm 8 under the effect of centrifugal force 22
The amplification of bar effect gets rid of block rocker arm 8 and is greater than the centrifugation got rid of block rocker arm 8 and get rid of the generation of block 9 to the pressure 23 that friction plate clamping cap 7 generates
Power 22；Referring to Fig. 9, getting rid of 8 left end of block rocker arm is cam mechanism, is moved out with block rocker arm 8 is got rid of, with friction plate clamping cap 7
Distance of the contact point away from rocker shaft 21 increase, cause friction plate clamping cap 7 to move to clutch transfer panel 3.
Referring to Figure 10, when engine speed is lower, the centrifugal force 22 for getting rid of block rocker arm 8 and getting rid of the generation of block 9 is smaller, because of centrifugal force
Pressing force 23 caused by 22 is less than the elastic anchorage force 24 of reset spring 10, therefore simultaneously malcompression between friction plate, rotates at this time
Component be flange terminal pad 2, clutch transfer panel 3.Referring to Figure 11, external frictions at different levels are stirred in the rotation of clutch transfer panel 3
Piece 6 gets rid of block rocker arm 8, therefore outside friction disc 6 and gets rid of block rocker arm 8 and be also at rotary state.But due to not pressed between friction plate
Tightly, inner attrition piece 5 is not rotated together with outside friction disc 6, thus be attached thereto serves 11, flexible clutch system 18
Also it does not rotate.
Engine speed incrementally increases, and the centrifugal force 22 for getting rid of block rocker arm 8 and getting rid of the generation of block 9 also incrementally increases, because of centrifugal force
Pressing force 23 caused by 22 is sometime being more than the elastic anchorage force 24 of reset spring 10, makes inner attrition piece 5 and outside friction disc 6
Between gradually compress, under the drive of frictional force, inner attrition piece 5 start with outside friction disc 6 rotate.At the same time, pass through spline
Serves 11, flexible clutch system 18, the helicopter gear shaft 15 connected with inner attrition piece 5 is also synchronous with inner attrition piece 5
Rotation.But before engine speed reaches design speed, since centrifugal force 22 is insufficient, gets rid of block rocker arm 8 and get rid of 9 centrifugal force pair of block
Pressure 23 caused by friction plate gland 7 is insufficient, thus the rotation of inner attrition piece 5 and outside friction disc 6 and asynchronous, at this time they
Between friction type be sliding friction；After engine speed reaches design speed, inner attrition piece 5 is completely combined with outside friction disc 6,
The two rotates synchronously, and friction type is static friction at this time, at this time serves 11, flexible clutch system 18, helicopter gear
Axis 15 and engine output shaft 1 rotate synchronously, and reach design work state.During this process due to inner attrition piece 5 and external friction
The combination of piece 6 be gradually, it is progressive, because without impacting caused by drive shaft system, cohesive process is more steady.
After transmission process is completed, similar with cohesive process: 1 revolving speed of engine output shaft is gradually reduced, and is attached thereto
Flange terminal pad 2, clutch transfer panel 3, outside friction disc 6, the revolving speed for getting rid of block rocker arm 8, getting rid of block 9 also decline, and get rid of block rocker arm 8 and get rid of
The centrifugal force 22 that block 9 generates reduces, and gets rid of block rocker arm 8 and reduces to the pressure 23 of friction plate gland 7, in the elasticity branch of reset spring 10
Under support force 24 acts on, friction plate gland 7 gradually move to far from the direction of inner attrition piece 5, inner attrition piece 5 and outside friction disc 6 it
Between pressure reduce, the serves 11 that connect with inner attrition piece 5, flexible clutch system 18, helicopter gear shaft 15 are outside
Inner attrition piece 5 and outside friction disc 6 is driven to be detached under the action of portion's damping, their revolving speed is gradually decrease to stall.
In the present invention, in order to adapt to different operating conditions to combining the different of revolving speed to require, the rigidity of reset spring 10 is adjusted.
When 10 rigidity of reset spring is larger, centrifugal force needed for overcoming its elastic anchorage force 24 is larger, thus 1 revolving speed of engine output shaft
It is larger, so when design combination revolving speed it is larger；In contrast, when 10 rigidity of reset spring is smaller, design combine revolving speed also compared with
It is small.
Claims (1)
1. a kind of dedicated low rotation speed large torque clutch of helicopter, it is characterised in that: it include engine connection and support system,
Friction plate and centrifugal block for clutch use system and flexible clutch system；Engine connection and support system, flexible clutch system are equal
It is installed on friction plate and centrifugal block for clutch use system；
The engine connection and support system, including flange terminal pad, clutch transfer panel and spring bearing；Flanged joint
It is connected on the right side of disk with engine output shaft, left side and clutch transfer panel are connected, and it acts as be transmitted to the power of engine
On clutch transfer panel；Two spring bearings are installed side by side on clutch transfer panel, inner ring and clutch transfer panel cooperate,
Outer ring and friction plate and block system cooperation is got rid of, to ensure clutch transfer panel and friction plate in clutch separation state and get rid of block
System is freely rotated；
The friction plate and centrifugal block for clutch use system, including friction chip part and centrifugal block for clutch use component；The friction chip part, including
Inner attrition piece, outside friction disc, friction plate gland, serves and reset spring；The centrifugal block for clutch use component, including get rid of block and shake
Arm, rocker shaft and get rid of block；Inner attrition piece and outside friction disc are staggered, and totally three layers；It gets rid of block one end and passes through rocker shaft
It is connected on clutch transfer panel, can be rotated around rocker shaft, the other end and get rid of block and be connected and be stuck on friction plate gland, start
When machine rotates, the pressure being pressed on friction plate gland is converted by the centrifugal force for getting rid of block generation using leverage, to compress
Each layer friction plate drives inner attrition piece rotation；Reset spring is between clutch transfer panel and friction plate gland, stalling or low
Reduce each friction pole sheet pressure when revolving speed, prevents its engagement；Spline is mounted on serves external splines on the inside of inner attrition piece, is led to
Cross spline transmitting torque；It is mounted on the inside of serves in engine connection and support system on the outer ring of spring bearing；It is described
Flexible clutch system, form are plum coupling, including input shaft end, output shaft end and intermediate elastomeric；Input shaft
End and output shaft end are transmitting the same of torque using the characteristics of intermediate elastomeric elastically deformable respectively with intermediate elastomeric fitting
When axial direction, radial direction and circumferential deviation are compensated；Input shaft end and serves are connected, and output shaft end and helicopter slow down
Device gear shaft is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611265377.5A CN106678202B (en) | 2016-12-30 | 2016-12-30 | A kind of dedicated low rotation speed large torque clutch of helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611265377.5A CN106678202B (en) | 2016-12-30 | 2016-12-30 | A kind of dedicated low rotation speed large torque clutch of helicopter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106678202A CN106678202A (en) | 2017-05-17 |
| CN106678202B true CN106678202B (en) | 2019-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611265377.5A Active CN106678202B (en) | 2016-12-30 | 2016-12-30 | A kind of dedicated low rotation speed large torque clutch of helicopter |
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| CN (1) | CN106678202B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630988A (en) * | 2017-09-29 | 2018-01-26 | 东莞市松研智达工业设计有限公司 | A kind of torque clutch based on gear shift |
| CN108131400A (en) * | 2017-12-22 | 2018-06-08 | 中国兵器工业计算机应用技术研究所 | A kind of unmanned helicopter clutch |
| CN108397494A (en) * | 2018-01-23 | 2018-08-14 | 安徽昊方机电股份有限公司 | A kind of air conditioning for automobiles torque transmission device |
| CN109592589A (en) * | 2018-12-20 | 2019-04-09 | 中国水利水电第十二工程局有限公司 | A kind of sync pulling machine |
| CN110173544B (en) * | 2019-06-14 | 2021-04-23 | 安徽工业大学 | Driving force distribution device |
| CN110513405A (en) * | 2019-09-27 | 2019-11-29 | 刘蕴星 | Twin-stage clutch apparatus |
| CN111855200B (en) * | 2020-08-26 | 2024-05-28 | 湘潭科达电工专用成套设备有限责任公司 | Helicopter transmission shaft comprehensive test bed |
| CN114771824B (en) * | 2022-06-22 | 2022-09-09 | 沃飞长空科技(成都)有限公司 | Automatic folding device of screw, screw and aircraft |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1021379A (en) * | 1963-04-26 | 1966-03-02 | Suzuki Motor Co | A centrifugal friction clutch more particularly for a motorcycle |
| NL161241C (en) * | 1975-09-18 | 1980-01-15 | Schelde Nv | CLUTCH SYSTEM FOR A GEAR BOX. |
| US6874606B1 (en) * | 2003-10-30 | 2005-04-05 | Power Transmission Technology, Inc. | Torque limiting clutch having centrifugally regulated characteristic torque |
| DE102007035427A1 (en) * | 2007-07-28 | 2009-01-29 | Bayerische Motoren Werke Aktiengesellschaft | Multi-disk clutch i.e. start clutch, for motor cycle, has lever-like element rotated around rotation axis that runs transverse to axial direction and radial direction of clutch, where lever-like element has lever arm section |
| DE102012223066B4 (en) * | 2012-12-13 | 2014-09-25 | Faurecia Innenraum Systeme Gmbh | Centrifugal brake for a glove box |
| CN206495914U (en) * | 2016-12-30 | 2017-09-15 | 中航维拓（天津）科技有限公司 | A kind of special low rotation speed large torque clutch of helicopter |
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2016
- 2016-12-30 CN CN201611265377.5A patent/CN106678202B/en active Active
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| CN106678202A (en) | 2017-05-17 |
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Effective date of registration: 20190805 Address after: 402260 No. 390 North Section of Shuangfu Street, Jiangjin District, Chongqing Patentee after: Chongqing Camel Aviation Technology Co., Ltd. Address before: 300300 No.3B, Tengfei Road, Junliangcheng Industrial Park, Dongli District, Tianjin Patentee before: CATIC (Tianjin) Technology Co., Ltd. |
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