WO1999051493A1 - Counter propeller propulsion unit - Google Patents
Counter propeller propulsion unit Download PDFInfo
- Publication number
- WO1999051493A1 WO1999051493A1 PCT/JP1999/001797 JP9901797W WO9951493A1 WO 1999051493 A1 WO1999051493 A1 WO 1999051493A1 JP 9901797 W JP9901797 W JP 9901797W WO 9951493 A1 WO9951493 A1 WO 9951493A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pulley
- belt
- propeller
- tension
- reversing
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/46—Arrangements of, or constructional features peculiar to, multiple propellers
- B64C11/48—Units of two or more coaxial propellers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H7/00—Propulsion directly actuated on air
- B63H7/02—Propulsion directly actuated on air using propellers
-
- 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
- B64D35/00—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions
- B64D35/04—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions characterised by the transmission driving a plurality of propellers or rotors
- B64D35/06—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions characterised by the transmission driving a plurality of propellers or rotors the propellers or rotors being counter-rotating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
- B63H2023/0208—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing by means of endless flexible members
- B63H2023/0216—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing by means of endless flexible members by means of belts, or the like
- B63H2023/0225—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing by means of endless flexible members by means of belts, or the like of grooved belts, i.e. with one or more grooves in longitudinal direction of the belt
-
- 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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/02—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts
- F16H7/023—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts with belts having a toothed contact surface or regularly spaced bosses or hollows for slipless or nearly slipless meshing with complementary profiled contact surface of a pulley
Definitions
- the present invention relates to a contra-rotating propeller propulsion device used for a relatively lightweight moving object, for example, a light plane, a motor hang glider, a motorized lighter, a paraplane, a hono craft, a lightweight helicopter, and the like.
- a relatively lightweight moving object for example, a light plane, a motor hang glider, a motorized lighter, a paraplane, a hono craft, a lightweight helicopter, and the like.
- a single-row propeller usually arranged in a single row on a rotating plane is used for a propeller-type airplane or the like.
- Such a single-row propeller generates a torque that causes the airframe to rotate in a direction opposite to the propeller rotation direction due to the reaction of torque generated by the rotation.
- a counter-rotating propeller has appeared to neutralize the torque of this propeller and ensure stable operation of the aircraft.
- conventional contra-rotating propellers for example, as disclosed in Japanese Patent Publication No. Hei 7-111284 and Japanese Patent Application Laid-Open No. Hei 8-156894, include an engine and a propeller.
- the gears are used for the transmission mechanism of the torque.
- the contra-rotating propeller mechanism using conventional gears was developed for relatively large aircraft, and not only has a complicated structure, but also has a very heavy weight ⁇ It was difficult to use.
- the present invention solves the above-mentioned problems, has a very simple structure, is light in weight, and in particular, can be mounted on a lightweight moving body that is easily affected by the anti-torque action, thereby ensuring stable operation. It is an object of the present invention to provide a contra-rotating propeller propulsion device that does not require conventional lubrication oil for gear operation, facilitates repair / replacement of parts, inspection, failure prediction, and maintenance, and is extremely safe.
- the present invention provides a propeller propulsion device including a motor, a propeller, and a torque transmitting means for transmitting the torque of the motor to the propeller, wherein the propeller is fixed to a main shaft.
- a forward rotation propeller rotatably mounted on the main shaft, wherein the rotational force transmission means is fixed to the drive shaft of the prime mover, and is fixed to the forward rotation propeller.
- a forward pulley rotatably mounted on the main shaft, a reverse pulley fixed to the main shaft, a forward belt for inwardly interlocking the normal pulley and the power pulley, and the reverse pulley And a reversing belt for inwardly interlocking the tension pulley, and pressing one of the belts supported between the two pulleys of the reversing belt against the power pulley from outside.
- a contra-rotating propeller propulsion device characterized in that rotate in opposite directions to each other the propeller by relating bell Bokuden kinematic mechanism.
- forward rotation and reverse rotation J refer to a relative relationship in the direction of rotation, and are based on the direction of rotation of the propeller.
- the present invention provides a method of manufacturing a vehicle according to the present invention, wherein at least a surface of each of the normal belt and the reverse belt or the reverse belt, which is in contact with each pulley, has a plurality of substantially inverted V-shaped cross sections in the longitudinal direction. and a contra-rotating propeller propulsion device, characterized in that the surface of the pulley that contacts the belt has a groove having a substantially V-shaped cross section that engages with the rib in the circumferential direction. Is preferred.
- the present invention provides the above-mentioned rotational force transmission means, wherein the two propellers are opposed to each other by a chain transmission mechanism having a chain instead of a belt and a sprocket instead of a pulley. It is a contra-rotating propeller propulsion device characterized by rotating in the direction.
- a belt transmission mechanism as an example.
- a reverse belt is replaced with a chain and a pulley with a sprocket, and the same applies.
- the rotational force of the prime mover is transmitted to the propeller by the two belts (forward belt and reverse belt) or the chain and the corresponding pulley or sprocket. It has a structure to do.
- the rotational force generated by the prime mover is transmitted from the power pulley fixed to the drive shaft to the normal pulley via the normal rotation belt, and is fixed to the normal rotation pulley.
- the rotating propeller rotates in the same direction as the rotation of the drive shaft.
- the rotational force is transmitted to the reversing pulley in conjunction with the power pulley fixed to the drive shaft and the outer side surface of the reversing belt, and is transmitted from the reversing pulley to the main pulley.
- the propeller is transmitted to the reversing propeller via the shaft, and the reversing propeller rotates in the direction opposite to the rotation of the mule shaft.
- Belts that have a rib on the surface that comes into contact with the pulley and that engage the groove formed on the surface of the pulley have a larger contact area than those that come into contact with a mere flat surface, and secure the rotational force.
- the belt has a function of preventing lateral movement of the belt during operation and preventing the belts from coming into contact with each other.
- Fig. 2 is a sectional view of the main part of the contra-rotating propeller propulsion device
- Fig. 3 is a perspective view of the main part of the contra-rotating propeller propulsion device
- Fig. 4 is a perspective view of the contra-rotating propeller propulsion device mounted on a paraglider.
- Fig. 5 is an overall perspective view of the contra-rotating propeller propulsion device
- FIG. 6 is a partial perspective view of a belt having inverted V-shaped ribs on both sides.
- a prime mover 11 uses a gasoline (mixed oil) engine of one or two cylinders for a moped bicycle, and a tapered front surface of the prime mover 11 is formed toward the tip.
- a drive shaft 19 is provided, and a power pulley 12 is fixed to the drive shaft 19 by a power pulley fixing nut 21.
- the power pulleys 12 may be provided separately for forward rotation and reverse rotation.
- power sprockets (not shown) for normal rotation and reverse rotation are separately fixed to the drive shaft.
- the main shaft 18 is rotatably pivoted to the support body 20 by, for example, an angular ball bearing 26, and is fastened and fixed by a main shaft fixing nut 22 at the rear end of the main shaft, and the bearing 26 is disengaged. And the main shaft are prevented from moving back and forth. Is maintained in a stable state.
- the support 20 is fixed to the upper part of the motor cover by a support fixing screw 23 penetrating the support 24.
- the main shaft is formed in a tapered portion at the front portion of the support body 20 with a slightly tapered end.
- a reversing pulley 14 having a tapered hole that fits into the main shaft portion is pushed into the tapered main shaft portion, and a reversing pulley fixing screw 28 Has been fixed.
- a forward pulley 13 is pivotally mounted on the main shaft through a forward pulley pivoting bearing 29 in front of the reverse pulley 14, and the forward pulley 13 and the forward propeller 3 1 are mounted on the forward pulley 13.
- the mounting washers 32 are fixed in this order with the locknuts 33 for mounting the forward rotation propeller.
- a thrust bearing 34 is provided between the reversing pulley 14 and the forward pulley 13 to maintain the reversing motion of each other without any trouble.
- Both the forward propeller 31 and the washer 32 are mounted on the forward pulley 13 so that they can move freely on the main shaft.However, due to the reaction of the torque generated by the rotation of the propeller 31, the thrust behind the main shaft is reduced. The forward propeller does not move forward while receiving and driving.
- a reversing propeller mounting flange 37 which is fastened to the reversing propeller 30 via a reversing propeller mounting washer 35 through a reversing propeller mounting washer 35, is fixed to the main spindle in front of the forward propeller. Have been.
- the flange 37 having a tapered hole at the tapered front end of the main shaft is pushed in as in the same manner as the above-described reverse pulley 14 is attached to the main shaft.
- a method is used in which a flange fixing screw 38 is screwed into the part and fixed.
- the power pulley 12 and the forward pulley 13 are inscribedly linked by a forward belt 16 in the same direction as the rotation of the power pulley 12. Is transmitted to the forward rotation pulley 13 via the forward rotation belt 16. Meanwhile, reversing pulley 14 and tension pulley 15 The belt 17 is inscribed and linked, and the outer right side 39 of the reversing belt 17 is pressed against the power pulley to transmit the rotation reverse to the rotation of the power pulley to the reversing pulley via the reversing belt.
- the transmission means for interlocking the reversing belt and pressing the left outer side 40 against the power pulley as shown by the broken line in FIG. 1 is the same as the invention.
- Embodiment 2 includes the invention described in Claim 2, and FIG. 1 and FIG. 3 show that 12 (15) or 15 (12)
- the power pulley fixed to the drive shaft and the tension pulley pivoted to the tension adjustment plate are exchanged, and the relationship between the drive shaft and the rotation direction of the propeller is also opposite to each other. become. Therefore, in order to propel the second embodiment in the same direction as in the first embodiment, the direction of rotation of the drive shaft must be reversed.
- the belt tension of the reversing belt 17 is performed by swinging the tension pulley 15 right and left of the tension adjustment plate 25 and fixing the tension pulley to the tension adjustment plate with a screw at an appropriate belt tension position.
- the tension of the normal rotation belt 16 is adjusted by adjusting the height of the support 24.
- the diameter ratio between each pulley linked to the belt is determined by the rotation speed of the prime mover and the rotation speed of the propeller.In general, the diameter ratio of the pulleys is the same to make the rotation speed of the forward and reverse propellers the same. I do.
- the belt is made of ordinary leather, woven fabric, rubber, link, steel plate or a combination thereof.
- rubber with excellent gasoline resistance to woven fabric for example, rubber belt laminated with synthetic rubber or natural rubber such as polybutadiene rubber, SBR, EPDM, or a mixture thereof is excellent in durability and moderate elasticity and abrasion. Is preferred.
- a third embodiment is an example in which a belt having ribs 42 having an inverted V-shaped cross section on both surfaces shown in FIG. 6 is used.
- a belt is the reversing belt 1 7
- a belt having a rib having an inverted V-shaped cross section on one side may be used as the normal rotation belt 16.
- a reverse belt 17 having two flat surfaces and a flat pulley are used in combination, while a normal rotation belt 16 having a reverse V-shaped cross-section rib on one surface is used in combination with a grooved pulley.
- a slight difference between the rotation speeds of the forward pulley and the reverse boogie due to the difference in the position of the action point where the belt and the pulley contact each other.
- the propellers in Embodiments 1 and 2 each include a forward propeller and a reverse propeller, and both propellers have two blades formed symmetrically left and right from the center. They are attached to the main shaft with their surfaces with the same twist direction facing each other.
- both propellers may act as pulling propellers (Tractor) on the fuselage, or may both act as propulsion propellers (Pusher), depending on the direction of rotation.
- the material of the propeller is not particularly limited, and other than wood, a light metal such as aluminum, duralumin, or glass fiber (FRP), an alloy, or a combination thereof may be used.
- Other members used in the present embodiment other than the propeller are not particularly limited as long as they are allowed in strength, weight, and the like.
- the contra-rotating propeller propulsion device As exemplified in FIG. 4, the contra-rotating propeller propulsion device according to the present invention is used as a propulsion propeller that pushes the fuselage by being attached to the rear of a motor paraglider, whereas in the case of a light aircraft or helicopter, Usually, pull Used as upholstered propeller.
- a propeller including three to six blades may be used.
- each forward or reverse propeller in the two rows has the same number of blades.
- a combination of a plurality of forward and reverse propellers according to the present embodiment can be used as a multi-row propeller having four rows, six rows, or the like.
- Example 1 is the same as Example 1 except that a chain was replaced with a pulley instead of a belt and a socket was used.
- the chains and sprockets used in Example 2 were usually diverted steels for bicycles or mopeds. It goes without saying that aluminum, duralumin, synthetic resin, or a combination of these and other lightweight materials other than steel can be used.
- Example 1 a two-blade single-row propeller was used in place of the contra-rotating propeller propulsion device, a double-sided flat belt, and a pulley with no grooves were used.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99912109A EP1074469A4 (en) | 1998-04-06 | 1999-04-05 | DRIVE UNIT WITH COUNTERFLOW SCREWS |
| US09/647,807 US6406261B1 (en) | 1998-04-06 | 1999-04-05 | Counter propeller propulsion unit |
| AU30561/99A AU3056199A (en) | 1998-04-06 | 1999-04-05 | Counter propeller propulsion unit |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10/108424 | 1998-04-06 | ||
| JP10108424A JPH11291992A (ja) | 1998-04-06 | 1998-04-06 | 二重反転プロペラ推進装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1999051493A1 true WO1999051493A1 (en) | 1999-10-14 |
Family
ID=14484427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1999/001797 Ceased WO1999051493A1 (en) | 1998-04-06 | 1999-04-05 | Counter propeller propulsion unit |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6406261B1 (ja) |
| EP (1) | EP1074469A4 (ja) |
| JP (1) | JPH11291992A (ja) |
| AU (1) | AU3056199A (ja) |
| WO (1) | WO1999051493A1 (ja) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6883750B2 (en) * | 2003-07-16 | 2005-04-26 | Sikorsky Aircraft Corporation | Split torque gearbox with pivoted engine support |
| US20100006352A1 (en) * | 2008-07-11 | 2010-01-14 | Fabio Agostini | Cannon-shaped wind turbines for electric vehicles |
| EP2519439B1 (en) * | 2009-12-28 | 2018-01-24 | GKN Aerospace Sweden AB | Air propeller arrangement and aircraft |
| DE102011053787A1 (de) | 2011-09-20 | 2013-03-21 | Institut Für Luft- Und Kältetechnik Gemeinnützige Gmbh | Propellervorrichtung |
| IL231617A (en) * | 2014-03-20 | 2016-09-29 | Yefim Kereth | Central planetary belt transmission |
| JP6946476B2 (ja) * | 2017-06-26 | 2021-10-06 | アーセーセー イノヴァチオン アーベー | ロータ飛行体 |
| CN108657448B (zh) * | 2018-06-04 | 2020-06-30 | 北京海空行科技有限公司 | 一种电动共轴式无人直升机传动系统 |
| CN110127044A (zh) * | 2019-06-26 | 2019-08-16 | 青岛未来创新高新技术有限公司 | 共轴式无人直升机柔性同轴传动装置 |
| CN111055997A (zh) * | 2019-12-28 | 2020-04-24 | 长安大学 | 一种多齿传动螺旋桨 |
| CN113357331A (zh) * | 2021-07-14 | 2021-09-07 | 汤群峰 | 一种省力增效驱动装置 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3411737A (en) * | 1966-08-24 | 1968-11-19 | Aubrey W Price | Helicopter |
| JPS56118200U (ja) * | 1980-02-10 | 1981-09-09 | ||
| JPS5717900U (ja) * | 1980-07-04 | 1982-01-29 | ||
| DE3239020A1 (de) * | 1982-10-21 | 1984-04-26 | Richard 6800 Mannheim Jelke | Hubschrauberaehnliches fluggeraet |
| FR2620106A1 (fr) * | 1987-09-07 | 1989-03-10 | Bourquardez Gaston | Helicoptere leger a 2 rotors contrarotatifs |
| JPH07112834A (ja) | 1993-10-18 | 1995-05-02 | Canon Inc | 画像形成装置 |
| JPH08156894A (ja) | 1994-12-08 | 1996-06-18 | Ishikawajima Harima Heavy Ind Co Ltd | 航空機のプロペラの反転駆動機構 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1110489A (en) * | 1912-03-18 | 1914-09-15 | Henry W Jacobs | Aeronautical power plant. |
| JPS56118200A (en) | 1980-02-22 | 1981-09-17 | Tokyo Shibaura Electric Co | Intervehicle distance dislay system |
| JPS5717900A (en) | 1980-07-08 | 1982-01-29 | Showa Denko Kk | Solidified material of radioactive waste |
| US4426049A (en) * | 1981-07-31 | 1984-01-17 | Stewart Donald M | Dual propeller and engine drive system for aircraft |
| FR2609136B1 (fr) * | 1986-12-31 | 1989-12-01 | Camara Alpha | Egalisateur de couple pour arbres contrarotatifs |
| US4887983A (en) * | 1988-09-09 | 1989-12-19 | Brunswick Corporation | Chain drive marine propulsion system with dual counterrotating propellers |
| CA2146983C (en) * | 1992-10-13 | 2002-07-23 | Richard Gwyn Davies | Water jet propulsion unit for use in a jet boat |
-
1998
- 1998-04-06 JP JP10108424A patent/JPH11291992A/ja active Pending
-
1999
- 1999-04-05 WO PCT/JP1999/001797 patent/WO1999051493A1/ja not_active Ceased
- 1999-04-05 EP EP99912109A patent/EP1074469A4/en not_active Withdrawn
- 1999-04-05 US US09/647,807 patent/US6406261B1/en not_active Expired - Fee Related
- 1999-04-05 AU AU30561/99A patent/AU3056199A/en not_active Abandoned
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3411737A (en) * | 1966-08-24 | 1968-11-19 | Aubrey W Price | Helicopter |
| JPS56118200U (ja) * | 1980-02-10 | 1981-09-09 | ||
| JPS5717900U (ja) * | 1980-07-04 | 1982-01-29 | ||
| DE3239020A1 (de) * | 1982-10-21 | 1984-04-26 | Richard 6800 Mannheim Jelke | Hubschrauberaehnliches fluggeraet |
| FR2620106A1 (fr) * | 1987-09-07 | 1989-03-10 | Bourquardez Gaston | Helicoptere leger a 2 rotors contrarotatifs |
| JPH07112834A (ja) | 1993-10-18 | 1995-05-02 | Canon Inc | 画像形成装置 |
| JPH08156894A (ja) | 1994-12-08 | 1996-06-18 | Ishikawajima Harima Heavy Ind Co Ltd | 航空機のプロペラの反転駆動機構 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1074469A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11291992A (ja) | 1999-10-26 |
| AU3056199A (en) | 1999-10-25 |
| EP1074469A4 (en) | 2002-10-23 |
| EP1074469A1 (en) | 2001-02-07 |
| US6406261B1 (en) | 2002-06-18 |
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