CN103112585A - Main decelerator for middle and small size helicopters - Google Patents

Main decelerator for middle and small size helicopters Download PDF

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Publication number
CN103112585A
CN103112585A CN2013100800731A CN201310080073A CN103112585A CN 103112585 A CN103112585 A CN 103112585A CN 2013100800731 A CN2013100800731 A CN 2013100800731A CN 201310080073 A CN201310080073 A CN 201310080073A CN 103112585 A CN103112585 A CN 103112585A
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China
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shaft
bearing
gear
planet
size
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CN2013100800731A
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CN103112585B (en
Inventor
赵韩
黄康
周志红
刘鹏
熊杨寿
冯永恺
王开来
王昭
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Huangshan Development Investment Group Co.,Ltd.
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Hefei University of Technology
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Abstract

The invention discloses a main decelerator for middle and small size helicopters. The upper end of a rotor shaft is the output end, and a shaft sleeve is arranged on the middle-upper part; a deep groove ball bearing is arranged on the upper part of the shaft sleeve, a secondary driven helical bevel gear is arranged on the middle part of the shaft sleeve, a jointed sun gear is arranged on the lower part of the shaft sleeve, three planetary gears are in mesh transmission with the sun gear respectively, and three planetary gears mesh with the gear ring respectively to form a planetary gear train; the gear ring is fixed on an annular base through a key, a horizontal transmission shaft is arranged on one side of the outer part of the base through supporting seats and a supporting board, a secondary driving helical bevel gear and a primary driven helical bevel gear are respectively arranged on two ends of the transmission shaft through splines, and the primary driven helical bevel gear is an input gear. The main decelerator disclosed by the invention adopts the technologies of nested installation for the sun gear shaft with the rotor shaft and integrated design for the planetary gear train bearing, the installation space is saved, the number of key parts is reduced, the system reliability is improved, the whole structure has the advantages of high carrying capacity, compact structure and easy maintenance, and the whole power transmission is U-shaped.

Description

A kind of middle-size and small-size helicopter main reduction gear
Technical field
The invention belongs to middle-size and small-size Helicopter Transmission System technical field, be specifically related to the main reduction gear of middle-size and small-size Helicopter Transmission System.
Background technology
Helicopter as 20th century aeronautical technology have one of creation of characteristic, be widely used in a plurality of fields such as troop-carrying, patrol, tourism, rescue.Although China has become minority in the world all country with helicopter R﹠D capability, but the negligible amounts of present China helicopter, civil helicopter still less, critical bottleneck wherein be exactly expensive, maintenance interval is short and fiduciary level is low, needs along with development, development of the West Regions and the national defense construction of Chinese national economy, Science in Future in China has very urgent demand to the helicopter product, and the development of especially middle-size and small-size helicopter has good prospect.
Helicopter Transmission System and rotor system, driving engine also are called three large crucial dynamic components of helicopter.The effect of Helicopter Transmission System is the horsepower output of driving engine and output speed to be delivered to rotor, tail-rotor and each annex according to a certain percentage get on, and is the indispensable transmission part of turboshaft engine power output, is also unique delivering path.Its transport characteristics is: at a high speed, heavy duty, big speed ratio, high reliability and maintainability and high viability well.
Make a general survey of China's Helicopter Development course of 50 years, China be mainly introduce that production patent, mapping are imitated, type improvement, international cooperation etc., although tentatively set up industrial foundation and the technical foundation such as comparatively complete research and development, trial-production, production, finished product are supporting, material system, hover on the whole or in mapping is imitated.
The keystone configuration of present middle-size and small-size Helicopter Main Reducer has:
1, the main reduction gear that is made of stage-geared is characterized in simple in structure, but load-carrying capacity, efficient are lower, and gear range is little;
2, imitating military helicopter main reduction gear structure is that transmission forms by one or more levels planetary gear train and multistage straight-tooth or angular gear, be vertical layout, vertically installing space is large, reliability is subjected to the planetary gear train bearing life to affect restriction, in addition, for multiple-stage planetary gear train, reliability is relatively poor, and maintenance is inconvenient.
Main reduction gear is the key factor of the whole Helicopter Transmission System performance of impact, therefore develops a kind of autonomous Design, production and processing, and is simple in structure, easy to maintenance necessary with middle-size and small-size main reduction gear higher reliability.It is the structure of combination that the present invention adopts primary planet pinion system and spiral bevel, and make the installation nested with rotor shaft of planet circular system sun wheel shaft axle sleeve, reduce the vertical installing space of whole main reduction gear, adopt integrated bearing for planetary gear train simultaneously, be about to the satellite gear axis hole of planet circular system as outside race, planet wheel spindle is as bearing inner ring, thereby minimizing affects the amount of parts of system reliability, improve system reliability, easy to maintenance quick.
So far, specially less for the design of the design of middle-size and small-size Helicopter Main Reducer and main reduction gear planetary gear train bearing integrated.
Summary of the invention
The present invention is for avoiding the existing weak point of above-mentioned prior art, a kind of middle-size and small-size Helicopter Main Reducer structural design scheme is provided, can be used as the main reduction gear structure design of middle-size and small-size civil helicopter driving system, unit design is simple, easy to maintenance, cost is lower.
A kind of middle-size and small-size helicopter comprises upright rotor shaft 11 with main reduction gear, and its upper end is mouth, and mouth is flange; The middle and upper part of rotor shaft 11 is arranged with axle sleeve 5, and the top between rotor shaft 11 and axle sleeve 5 is provided with plain bearing 26, and the bottom between both is provided with properties of journal bearing lubricated 25; The top of axle sleeve 5 is provided with deep groove ball bearing 9, and the middle part is provided with the driven spiral bevel 7 of secondary, and the bottom is provided with the sun wheel 30 of disjunctor, and the axle sleeve 5 between the driven spiral bevel 7 of secondary and deep groove ball bearing 9 is provided with axial restraint sleeve 8; The bottom of rotor shaft 11 is castellated shaft, and lower planet frame 23 by spline joint, and the rotor shaft 11 between the lower end of axle sleeve 5 and lower planet frame 23 is provided with axial-thrust bearing 24; It is tabular that lower planet frame 23 is triangle, the place, three angles of the lower planet frame 23 corresponding with sun wheel 30 respectively by planet wheel spindle 3 be provided with 6, three satellite gears 6 of satellite gear respectively with sun wheel 30 engaged transmission; Upper planet frame 4 is hollow triangle, and empty set is on the axle sleeve 5 above sun wheel 30, and three angles of upper planet frame 4 are being connected respectively three planet wheel spindles 3 by key; Three satellite gears 6 also form planet circular system with gear ring 2 engagements respectively; Described gear ring 2 is fixed on the top of the base 1 of annular by key, outside one side of base 1 is connecting overhanging boss, and boss is provided with bearing 18, and the end face of bearing 18 is provided with the support plate 17 of level, and the both sides of support plate 17 are respectively bearing seat; Transmission shaft 14 is horizontal shaft, be arranged with two bearings on it, transmission shaft 14 is located on support plate 17 by the cooperation of the bearing seat on bearing and support plate 17, the two ends of described transmission shaft 14 extend respectively the bearing seat outside, one end of transmission shaft 14 is provided with initiatively spiral bevel 12 of secondary by spline, secondary is spiral bevel 12 and driven spiral bevel 7 engaged transmission of secondary initiatively, and the other end of transmission shaft 14 is provided with the driven spiral bevel 16 of one-level, and the driven spiral bevel 16 of one-level is input gear.
Described planet wheel spindle 3 is provided with the shaft shoulder, and satellite gear 6 is positioned on the planet wheel spindle 3 on shaft shoulder top; Be provided with coaxial lower sleeve gasket 19 and lower lubricating sleeve 21 between the satellite gear 6 corresponding with the shaft shoulder and planet wheel spindle 3, be provided with coaxial upper lubricating sleeve 28 and upper sleeve gasket 29 between the satellite gear 6 corresponding with upper planet frame 4 and planet wheel spindle 3; Satellite gear 6 and planet wheel spindle 3 tops are laid with taper roller 27 by retainer 15 between radially and form tapered roller bearings, and the bottom is laid with cylindrical roller 20 by retainer 15 between radially and forms cylindrical roller bearings.
Two bearings on described transmission shaft 14 are angular contact ball bearing 13.
The lower end of described rotor shaft 11 is provided with tapered roller bearing 22.
Be laid with respectively oil passage on described upper plain bearing 26 and properties of journal bearing lubricated 25.
Compared with the prior art, useful technique effect of the present invention embodies in the following areas:
1. for the characteristics of Helicopter Main Reducer high speed, heavy duty, big speed ratio, adopting planet circular systems and spiral bevel referring to Fig. 1, Fig. 3 and 4 is composite configuration's form, and whole main reduction gear power transmission is " U " font, and compact conformation is saved installing space;
2. the planet circular system load-carrying capacity that effectively utilized of this main reduction gear is strong, carrying is balanced, the advantage of the large and compact conformation of transmitting ratio, and to combine spiral bevel be that load-carrying capacity is strong, stable drive, low noise and the advantage of transmission of can intersecting, satisfied helicopter to the driving system high bearing capacity, the requirement of low noise and big speed ratio, referring to Fig. 3 and Fig. 4, and make the sun wheel shaft axle sleeve 5 of planet circular system hollow, realize the nested installation of sun wheel shaft axle sleeve 5 and rotor shaft 11, satisfied the control requirement of helicopter to volume and weight, to reduce vertical installing space and rotor to the concussion impact of driving system and fuselage,
3. referring to Fig. 4, Fig. 5, Fig. 6 and Fig. 7, planet circular system adopts the bearing integrated technology, be about to satellite gear 6 axis holes of planet circular system as outside race, planet wheel spindle 3 is as bearing inner ring, uniform taper roller 27 and the cylindrical roller 20 laid between planet wheel spindle 3 and satellite gear 6, and install retainer 15 between roller additional, to keep the distance between roller.Planet circular system is the critical component of Helicopter Main Reducer, and the load of bearing is larger, and rotating speed is higher, and the bearing integrated technology has reduced the parts of planet circular system, has improved system dependability, extend to reprocess interval, and easy to maintenance;
4. for relative rotation speed higher between main reduction gear sun wheel shaft axle sleeve 5 and rotor shaft 11 and larger radial weight, the two ends up and down of adopting the stronger upper plain bearing 26 of load-carrying capacity and properties of journal bearing lubricated 25 to be arranged in sun wheel shaft axle sleeve 5, simultaneously in order to guarantee the sufficient lubrication of upper plain bearing 26 and properties of journal bearing lubricated 25, be evenly distributed with oil passage on upper plain bearing 26 and properties of journal bearing lubricated 25, in addition in order to guarantee the center precision of whole main reduction gear rotor shaft 11 and sun wheel shaft axle sleeve 5, at rotor shaft 11 lower ends installation tapered roller bearings 22 with in the 5 upper ends cooperations of sun wheel shaft axle sleeve, deep groove ball bearings 9 are installed respectively, another effect of tapered roller bearing 22 is the axial load that overcomes whole device simultaneously.
Description of drawings
Fig. 1 is the integrally-built schematic three-dimensional top view of the present invention.
Fig. 2 is the integrally-built three-dimensional top view of the present invention.
Fig. 3 is the integrally-built three-dimensional cutaway view of the present invention.
Fig. 4 is the integrally-built two-dimentional cutaway view of the present invention.
Fig. 5 is planetary gearing train structure partial 3 d cutaway view of the present invention.
Fig. 6 is the local two-dimentional cutaway view of planetary gearing train structure of the present invention.
Fig. 7 is that planetary gearing train structure cylindrical roller of the present invention, taper roller and planet wheel spindle are installed partial view.
Fig. 8 is the three-dimensional cutaway view of spiral bevel architecture of the present invention.
Fig. 9 is spiral bevel architecture two dimension cutaway view of the present invention.
sequence number in upper figure: 1 base, 2 gear rings, 3 planet wheel spindles, 4 upper planet framves, 5 axle sleeves, 6 satellite gears, the 7 driven spiral bevels of secondary, 8 axial restraint sleeves, 9 deep groove ball bearings, 10 top covers, 11 rotor shaft, 12 secondarys are spiral bevel initiatively, 13 angular contact ball bearings, 14 transmission shafts, 15 retainers, the 16 driven spiral bevels of one-level, 17 support plates, 18 bearings, 19 lower sleeve gaskets, 20 cylindrical rollers, 21 times lubricating sleeves, 22 tapered roller bearings, 23 lower planet framves, 24 axial-thrust bearings, 25 properties of journal bearing lubricated, plain bearing on 26, 27 taper rollers, lubricating sleeve on 28, 29 upper sleeve gaskets, sun wheel 30, the shaft shoulder 31.
The specific embodiment
Below in conjunction with accompanying drawing, by embodiment, the present invention is done to describe further.
Embodiment
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of middle-size and small-size helicopter comprises upright rotor shaft 11 with main reduction gear, and its upper end is mouth, and mouth is flange; The middle and upper part of rotor shaft 11 is set with axle sleeve 5, and the top between rotor shaft 11 and axle sleeve 5 is equipped with plain bearing 26, and the bottom is equipped with properties of journal bearing lubricated 25; The uniform oil passage that offers respectively on upper plain bearing 26 and properties of journal bearing lubricated 25.The top of axle sleeve 5 is equipped with deep groove ball bearing 9, and the middle part is equipped with the driven spiral bevel 7 of secondary, and the bottom is provided with the sun wheel 30 of disjunctor; Be set with top cover 10 on the rotor shaft 11 of axle sleeve 5 upper ends; Be set with axial restraint sleeve 8 on axle sleeve 5 between the driven spiral bevel 7 of secondary and deep groove ball bearing 9.The bottom of rotor shaft 11 is castellated shaft, and lower planet frame 23 by spline joint, on the rotor shaft 11 between the lower end of axle sleeve 5 and lower planet frame 23, axial-thrust bearing 24 is installed; The lower end of rotor shaft 11 is equipped with tapered roller bearing 22.Referring to Fig. 2 and Fig. 5, it is tabular that lower planet frame 23 is triangle, the place, three angles of the lower planet frame 23 corresponding with sun wheel 30 respectively by planet wheel spindle 3 be equipped with 6, three satellite gears 6 of satellite gear respectively with sun wheel 30 engaged transmission; Referring to Fig. 6, planet wheel spindle 3 is provided with the shaft shoulder 31, and satellite gear 6 is positioned on the planet wheel spindle 3 on the shaft shoulder 31 tops; Coaxial lower sleeve gasket 19 and lower lubricating sleeve 21 are installed between the satellite gear 6 corresponding with the shaft shoulder 31 and planet wheel spindle 3, between the satellite gear 6 corresponding with upper planet frame 4 and planet wheel spindle 3, coaxial upper lubricating sleeve 28 and upper sleeve gasket 29 are installed; Referring to Fig. 7, satellite gear 6 and planet wheel spindle 3 tops form tapered roller bearings by the uniform taper roller 27 that is equipped with of retainer 15 between radially, and the bottom forms cylindrical roller bearings by the uniform cylindrical roller 20 that is equipped with of retainer between radially.Referring to Fig. 1 and Fig. 5, upper planet frame 4 is hollow triangle, and empty set is on the rotor shaft 11 above sun wheel 30, and three angles of upper planet frame 4 are being connected respectively three planet wheel spindles 3 by key; Three satellite gears 6 also form planet circular system with gear ring 2 engagements respectively.Referring to Fig. 3, Fig. 8 and Fig. 9, gear ring 2 is fixed on the top of the base 1 of annular by key, outside one side of base 1 is connecting overhanging boss, and bearing 18 is installed on boss, the end face of bearing 18 is equipped with the support plate 17 of level, and the both sides of support plate 17 are respectively bearing seat; Transmission shaft 14 is horizontal shaft, is set with two bearings on it, and transmission shaft 14 is installed on support plate 17 by the cooperation of the bearing seat on bearing and support plate 17, and two bearings on transmission shaft 14 are angular contact ball bearing 13.The two ends of transmission shaft 14 extend respectively the bearing seat outside, one end of transmission shaft 14 is equipped with initiatively spiral bevel 12 of secondary by spline, secondary is spiral bevel 12 and driven spiral bevel 7 engaged transmission of secondary initiatively, the other end of transmission shaft 14 is equipped with the driven spiral bevel 16 of one-level, and the driven spiral bevel 16 of one-level is input gear.
Principle of work of the present invention is described as follows:
the input end of whole device is the driven spiral bevel 16 of one-level, mouth is rotor shaft 11, power is passed to transmission shaft 14 from the driven spiral bevel 16 of one-level by spline joint, the other end of transmission shaft 14 and secondary initiatively spiral bevel 12 pass through spline joint, equally, the driven spiral bevel 7 of secondary is also to pass through spline joint with sun wheel shaft axle sleeve 5, so, by the spline joint effect between the engagement between spiral bevel and gear and axle, with transmission of power to planet circular system sun wheel 30, the gear ring 2 of planet circular system is fixed on base 1 by key, guarantee that gear ring 2 is fixing, lower planet frame 23 rotates, thereby realize the deceleration of planet circular system, wherein, in order to guarantee the positional precision of three planet wheel spindles 6, the upper end of three planet wheel spindles 6 is fixed by three summits of key and upper planet frame 4, lower planet frame 23 passes through spline joint with rotor shaft 11 lower ends, transmission of power is to rotor shaft 11 the most at last, realize the deceleration of main reduction gear and the effect of torque per liter.
In order to save the longitudinal space of whole device, the present invention is designed to hollow shaft sleeve with sun wheel shaft, adopts rotor shaft 11 to overlap nested installation with the planet circular system sun wheel shaft, and both install additional between radially properties of journal bearing lubricated 25, on plain bearing 26.Simultaneously, in order to guarantee whole device mouth rotor shaft 11 axial location precision, adopt the deep groove ball bearing 9 and the tapered roller bearing 22 that is arranged on rotor shaft 11 lower ends that are arranged on sun wheel axle sleeve 5 upper ends, fix the two ends of rotor shaft 11.
In addition, in order to reduce the component number of this main reduction gear planetary gear train, thereby improve fiduciary level and the safety of system, the present invention adopts the bearing integrated designing technique, be about to planet wheel spindle 3 as bearing inner ring, the axis hole of satellite gear 6 is as outside race, and satellite gear 6 and planet wheel spindle 3 tops are laid with taper roller 27 by retainer 15 between radially and form tapered roller bearings, and the bottom is laid with cylindrical roller 20 by retainer 15 between radially and forms cylindrical roller bearings; Save bearing parts and relative installation requirement and step, and make the planet circular system of main reduction gear obtain sufficient lubrication, in order to prevent that foreign matter from entering, the place that contacts with satellite gear 6 at the shaft shoulder 31 and the upper planet frame 4 of planet wheel spindle 3 adds upper sleeve gasket 29, lower sleeve gasket 19 and upper lubricating sleeve 28, lower lubricating sleeve 21.Structure design advantages of simple of the present invention, installation and maintenance are convenient, for design and the improvement of middle-size and small-size civil helicopter main decelerator of driving system, certain directive significance arranged.

Claims (5)

1. one kind middle-size and small-size helicopter main reduction gear, is characterized in that upright rotor shaft 11, and its upper end is mouth, and mouth is flange; The middle part of rotor shaft 11 is arranged with axle sleeve 5, and the top between rotor shaft 11 and axle sleeve 5 is provided with plain bearing 26, and the bottom between both is provided with properties of journal bearing lubricated 25; The top of axle sleeve 5 is provided with deep groove ball bearing 9, and the middle part is provided with the driven spiral bevel 7 of secondary, and the bottom is provided with the sun wheel 30 of disjunctor, and the axle sleeve 5 between the driven spiral bevel 7 of secondary and deep groove ball bearing 9 is provided with axial restraint sleeve 8; The bottom of rotor shaft 11 is castellated shaft, and lower planet frame 23 by spline joint, and the rotor shaft 11 between the lower end of axle sleeve 5 and lower planet frame 23 is provided with axial-thrust bearing 24; It is tabular that lower planet frame 23 is triangle, the place, three angles of the lower planet frame 23 corresponding with sun wheel 30 respectively by planet wheel spindle 3 be provided with 6, three satellite gears 6 of satellite gear respectively with sun wheel 30 engaged transmission; Upper planet frame 4 is hollow triangle, and empty set is on the axle sleeve 5 above sun wheel 30, and three angles of upper planet frame 4 are being connected respectively three planet wheel spindles 3 by key; Three satellite gears 6 also form planet circular system with gear ring 2 engagements respectively; Described gear ring 2 is fixed on the top of the base 1 of annular by key, outside one side of base 1 is connecting overhanging boss, and boss is provided with bearing 18, and the end face of bearing 18 is provided with the support plate 17 of level, and the both sides of support plate 17 are respectively bearing seat; Transmission shaft 14 is horizontal shaft, be arranged with two bearings on it, transmission shaft 14 is located on support plate 17 by the cooperation of the bearing seat on bearing and support plate 17, the two ends of described transmission shaft 14 extend respectively the bearing seat outside, one end of transmission shaft 14 is provided with initiatively spiral bevel 12 of secondary by spline, secondary is spiral bevel 12 and driven spiral bevel 7 engaged transmission of secondary initiatively, the other end of transmission shaft 14 is provided with the driven spiral bevel 16 of one-level by spline, and the driven spiral bevel 16 of one-level is input gear.
2. a kind of middle-size and small-size helicopter main reduction gear according to claim 1, it is characterized in that: described planet wheel spindle 3 is provided with the shaft shoulder, and satellite gear 6 is positioned on the planet wheel spindle 3 on shaft shoulder top; Be provided with coaxial lower sleeve gasket 19 and lower lubricating sleeve 21 between the satellite gear 6 corresponding with the shaft shoulder and planet wheel spindle 3, be provided with coaxial upper lubricating sleeve 28 and upper sleeve gasket 29 between the satellite gear 6 corresponding with upper planet frame 4 and planet wheel spindle 3; Satellite gear 6 and planet wheel spindle 3 tops are laid with taper roller 27 by retainer 15 between radially and form tapered roller bearings, and the bottom is laid with cylindrical roller 20 by retainer 15 between radially and forms cylindrical roller bearings.
3. a kind of middle-size and small-size helicopter main reduction gear according to claim 1 and 2, it is characterized in that: two bearings on transmission shaft 14 are angular contact ball bearing 13.
4. a kind of middle-size and small-size helicopter main reduction gear according to claim 1 and 2, it is characterized in that: the lower end of described rotor shaft 11 is provided with tapered roller bearing 22.
5. a kind of middle-size and small-size helicopter main reduction gear according to claim 1 and 2, is characterized in that: be laid with respectively oil passage on described upper plain bearing 26 and properties of journal bearing lubricated 25.
CN201310080073.1A 2013-03-14 2013-03-14 Main decelerator for middle and small size helicopters Active CN103112585B (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103968003A (en) * 2014-05-20 2014-08-06 西北工业大学 Torque shunting transmission mechanism for helicopter main reducing gear
CN104061284A (en) * 2014-06-23 2014-09-24 深圳市高士通科技有限公司 T-shaped secondary speed reducer for unmanned helicopter
CN104085531A (en) * 2014-06-23 2014-10-08 中国航空动力机械研究所 Power transmission structure for main reducer of helicopter, and helicopter
CN105090455A (en) * 2015-09-14 2015-11-25 内蒙古第一机械集团有限公司 Positioning and supporting structure of helical planetary gearbox for pure electric passenger car
CN105235902A (en) * 2013-12-17 2016-01-13 湖北易瓦特科技股份有限公司 Rotorcraft transmission apparatus
CN106545645A (en) * 2017-01-13 2017-03-29 必扬星环(北京)航空科技有限公司 A kind of main reducing gear power intake structure
CN106545644A (en) * 2017-01-13 2017-03-29 必扬星环(北京)航空科技有限公司 A kind of Driven Gear of Final Reduction Gear splash lubrication structure
CN107399431A (en) * 2017-09-19 2017-11-28 合肥工业大学 Applied to the motor on electric drive helicopter tail rotor and reducer integrated device and its control method
CN108058824A (en) * 2017-12-19 2018-05-22 合肥工业大学 A kind of integrated electric motor deceleration system for empennage of helicopter
CN108591239A (en) * 2018-05-02 2018-09-28 中国航发湖南动力机械研究所 Rotor shaft assembly, main reducing gear and aircraft
CN109099114A (en) * 2018-10-26 2018-12-28 中国航发湖南动力机械研究所 Carry transmission mechanism and helicopter reducer

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CN1149277A (en) * 1994-05-26 1997-05-07 联合工艺公司 A stacked compound planetary gear train for an upgraded powertrain system for a helicopter
US20040259678A1 (en) * 2003-06-18 2004-12-23 Stille Michael John Helicopter mainshaft and mainshaft assembly and a drive system including the same, and methods for forming a mainshaft
CN203199179U (en) * 2013-03-14 2013-09-18 合肥工业大学 Main speed reducer for small and medium sized helicopter

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Publication number Priority date Publication date Assignee Title
US5135442A (en) * 1990-02-12 1992-08-04 Lucas Western, Inc. Gear arrangement for transmitting torque through an angle
CN1149277A (en) * 1994-05-26 1997-05-07 联合工艺公司 A stacked compound planetary gear train for an upgraded powertrain system for a helicopter
US20040259678A1 (en) * 2003-06-18 2004-12-23 Stille Michael John Helicopter mainshaft and mainshaft assembly and a drive system including the same, and methods for forming a mainshaft
CN203199179U (en) * 2013-03-14 2013-09-18 合肥工业大学 Main speed reducer for small and medium sized helicopter

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105235902A (en) * 2013-12-17 2016-01-13 湖北易瓦特科技股份有限公司 Rotorcraft transmission apparatus
CN105235902B (en) * 2013-12-17 2017-07-11 易瓦特科技股份公司 Gyroplane transmission device
CN103968003A (en) * 2014-05-20 2014-08-06 西北工业大学 Torque shunting transmission mechanism for helicopter main reducing gear
CN104085531A (en) * 2014-06-23 2014-10-08 中国航空动力机械研究所 Power transmission structure for main reducer of helicopter, and helicopter
CN104061284B (en) * 2014-06-23 2016-10-26 深圳市高士通科技有限公司 The T-shaped two stage reducer of depopulated helicopter
CN104061284A (en) * 2014-06-23 2014-09-24 深圳市高士通科技有限公司 T-shaped secondary speed reducer for unmanned helicopter
CN105090455A (en) * 2015-09-14 2015-11-25 内蒙古第一机械集团有限公司 Positioning and supporting structure of helical planetary gearbox for pure electric passenger car
CN106545645A (en) * 2017-01-13 2017-03-29 必扬星环(北京)航空科技有限公司 A kind of main reducing gear power intake structure
CN106545644A (en) * 2017-01-13 2017-03-29 必扬星环(北京)航空科技有限公司 A kind of Driven Gear of Final Reduction Gear splash lubrication structure
CN107399431B (en) * 2017-09-19 2019-07-19 合肥工业大学 Applied to the motor and reducer integrated device and its control method on electric drive helicopter tail rotor
CN107399431A (en) * 2017-09-19 2017-11-28 合肥工业大学 Applied to the motor on electric drive helicopter tail rotor and reducer integrated device and its control method
CN108058824A (en) * 2017-12-19 2018-05-22 合肥工业大学 A kind of integrated electric motor deceleration system for empennage of helicopter
CN108058824B (en) * 2017-12-19 2020-04-21 合肥工业大学 Integrated motor deceleration driving system for helicopter empennage
CN108591239A (en) * 2018-05-02 2018-09-28 中国航发湖南动力机械研究所 Rotor shaft assembly, main reducing gear and aircraft
CN109099114A (en) * 2018-10-26 2018-12-28 中国航发湖南动力机械研究所 Carry transmission mechanism and helicopter reducer
CN109099114B (en) * 2018-10-26 2020-08-25 中国航发湖南动力机械研究所 Uniform load transmission mechanism and helicopter speed reducer

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