CN112238948A - Quick-release helicopter tail transmission shaft assembly - Google Patents
Quick-release helicopter tail transmission shaft assembly Download PDFInfo
- Publication number
- CN112238948A CN112238948A CN202011114671.2A CN202011114671A CN112238948A CN 112238948 A CN112238948 A CN 112238948A CN 202011114671 A CN202011114671 A CN 202011114671A CN 112238948 A CN112238948 A CN 112238948A
- Authority
- CN
- China
- Prior art keywords
- tail
- shaft assembly
- transmission
- tail transmission
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 120
- 238000009434 installation Methods 0.000 claims abstract description 16
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 12
- 230000008878 coupling Effects 0.000 claims description 17
- 238000010168 coupling process Methods 0.000 claims description 17
- 238000005859 coupling reaction Methods 0.000 claims description 17
- 239000000725 suspension Substances 0.000 claims description 15
- 238000013016 damping Methods 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D35/00—Transmitting power from power plant to propellers or rotors; Arrangements of transmissions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/30—Parts of fuselage relatively movable to reduce overall dimensions of aircraft
Abstract
The invention discloses a quick-release helicopter tail transmission shaft assembly, which comprises an integrated tail pipe beam, a tail transmission front shaft assembly and a tail transmission rear shaft assembly, wherein the tail transmission front shaft assembly and the tail transmission rear shaft assembly are arranged in the integrated tail pipe beam; the front end of the tail transmission front shaft assembly is connected with the main tail reducing output, and the rear end of the tail transmission front shaft assembly is connected with the tail transmission rear shaft assembly in a sliding fit structure and can slide in a certain range along the axial direction; the tail transmission rear shaft assembly is provided with a bearing support which is arranged on the integrated tail pipe beam and used for radially supporting the whole tail transmission shaft; the rear end of the tail transmission rear shaft assembly is connected with a tail speed reducer. The invention provides a tail transmission shaft structure capable of being quickly disassembled and reassembled, and solves the problem of quick installation of a tail transmission shaft of a helicopter on the premise of not increasing the complexity of a system.
Description
Technical Field
The invention relates to the field of structural design of helicopter transmission systems, in particular to a quick-release helicopter tail transmission shaft assembly.
Background
The overall structure of the helicopter is slender, and a large space is needed for storing and transporting the helicopter, so that the storage and the transportation of the helicopter are difficult to carry out. In order to solve the problem, the large helicopter and the ship-borne helicopter adopt a tail beam folding mode to solve the problem, but the mode has a complex structure and high weight cost, and is not suitable for medium and small helicopters.
With the rapid development of small and medium-sized unmanned helicopters, the rapid transportation and the use of the helicopters become the problems to be solved therewith; due to the limitation of the length direction of the helicopter structure, at present, one large transport vehicle can only transport one helicopter, so that the waste of transport resources is caused, if the tail part of the helicopter is disassembled and then transported, one military transport vehicle can transport two helicopters, but the re-assembly and adjustment of the tail section structure of the helicopter take a long time, and no measure for solving the problem exists from the structural design at present.
Disclosure of Invention
The invention aims to provide a quick-release helicopter tail transmission shaft assembly, which is used for solving the problem of difficult transportation of a helicopter and solving the problem of quick recovery after decomposition.
In order to realize the task, the invention adopts the following technical scheme:
a quick-release helicopter tail transmission shaft assembly comprises an integrated tail pipe beam, a tail transmission front shaft assembly and a tail transmission rear shaft assembly, wherein the tail transmission front shaft assembly and the tail transmission rear shaft assembly are arranged in the integrated tail pipe beam; the front end of the tail transmission front shaft assembly is connected with the main tail reducing output, and the rear end of the tail transmission front shaft assembly is connected with the tail transmission rear shaft assembly in a sliding fit structure and can slide in a certain range along the axial direction; the tail transmission rear shaft assembly is provided with a bearing support which is arranged on the integrated tail pipe beam and used for radially supporting the whole tail transmission shaft; the rear end of the tail transmission rear shaft assembly is connected with a tail speed reducer.
Furthermore, the tail transmission front shaft assembly comprises a tail transmission front shaft, the front part of the tail transmission front shaft is arranged on the main reducer tail output through a membrane coupling, and the membrane coupling is used for adjusting the different axial degrees of the main reducer and the tail transmission shaft; and a diaphragm coupling is arranged at the rear end of the tail transmission front shaft and used for adjusting the coaxiality of the tail transmission front shaft assembly and the tail transmission rear shaft assembly.
Furthermore, the rear end of the diaphragm coupling is connected with a sliding external spline, and the sliding external spline and an internal spline arranged on the tail transmission rear shaft are installed together to form the sliding fit type structure.
Furthermore, the tail transmission rear shaft assembly comprises a tail transmission rear shaft, the front end and the rear end of the tail transmission rear shaft are both of sliding type internal spline structures and are respectively connected with the tail transmission front shaft and the tail speed reducer, two bearing supports are arranged on the tail transmission rear shaft, and the two bearing supports simultaneously support the whole tail transmission shaft assembly to limit the axial serial motion of the whole tail transmission shaft and perform radial positioning.
Furthermore, the tail-drive rear axle assembly support adopts a suspension mode, and each bearing support is suspended and installed on a fixing hole of the integrated tail pipe beam through two groups of mounting bolts.
Furthermore, the tail transmission rear shaft is a slender thin-wall pipe shaft, a bearing installation sleeve is installed on the outer ring of the tail transmission rear shaft in an interference mode, the bearing installation sleeve cannot move in the axial direction after being installed, the inner ring of the supporting bearing is installed on the bearing installation sleeve, and positioning mechanisms are arranged on two sides of the bearing installation sleeve;
the bearing support comprises a suspension support and a clamping plate, an outer ring of the supporting bearing is clamped between the suspension support and the clamping plate, and the tail transmission rear shaft assembly is fixed on the integrated tail pipe beam through the suspension support.
Furthermore, the suspension support and the clamping plate are fixedly connected through a plurality of groups of bolts, gaskets and nuts, and the excircles of the three groups of bolts are tangent to the excircles of the support bearing, so that the rotation of the outer ring of the support bearing is prevented; the hanging support is provided with a hanging part parallel to the tail transmission rear shaft, the hanging part is provided with two mounting holes, each mounting hole is provided with a clamping piece nut, and the clamping piece nuts are mounted on fixing holes formed in the integrated tail pipe beam through mounting bolts.
Furthermore, the inner side and the outer side of a fixing hole formed in the integrated tail pipe beam are respectively provided with a vibration damping washer for isolating radial vibration of the tail transmission shaft assembly; and an adjusting washer with adjustable thickness is arranged on the inner side of each fixing hole and used for adjusting the distance between the tail transmission rear shaft assembly and the integrated tail pipe beam during primary installation so as to adjust the coaxiality of the tail transmission shaft.
Compared with the prior art, the invention has the following technical characteristics:
the invention provides a tail transmission shaft structure capable of being rapidly disassembled and reassembled so as to increase the transportation capacity of a helicopter. Meanwhile, the problem of quick installation of the tail transmission shaft of the helicopter is solved on the premise of not increasing the complexity of the system.
Drawings
FIG. 1 is a schematic view of a conventional micro-drive shaft configuration;
FIG. 2 is a schematic configuration diagram of an integrated tailpipe beam according to the present invention;
FIG. 3 is a schematic structural view of a tail-transfer front axle assembly and a tail-transfer rear axle assembly;
FIG. 4 is a schematic structural view of a tail-drive front axle assembly;
FIG. 5 is a schematic structural view of a tail-drive rear axle assembly;
fig. 6 is an exploded view of the bearing support.
The reference numbers in the figures illustrate: 2-1 cylindrical tail pipe, 2-2 pipe beam support rods, 2-3 integrated tail pipe beam, 3-1 main tail reduction output, 3-2 tail transmission front shaft assemblies, 3-3 bearing supports, 3-4 tail transmission rear shaft assemblies, 3-5 bearing supports, 3-6 tail speed reducers, 4-1 diaphragm coupling, 4-2 tail transmission front shafts, 4-3 diaphragm coupling, 4-4 sliding external splines, 4-5 tail transmission rear shafts, 6-1 clamping plates, 6-2 support bearings, 6-3 bearing mounting sleeves, 6-4 suspension supports, 6-5 clamping piece nuts, 6-7 damping washers, 6-8 damping washers, 6-9 mounting bolts, 6-10 bolts, 6-11 gaskets, 6-12 gaskets and 6-13 nuts.
Detailed Description
The helicopter tail transmission shaft has the function that the power and the rotating speed output by the tail of the main speed reducer are transmitted to the tail speed reducer to drive the tail rotor, the traditional structure is a whole longer aluminum pipe, and the tail transmission shaft and the tail pipe beam are longer in overall structure and cannot be quickly disassembled, so that the transportation and the storage are difficult.
Aiming at the problems, the invention provides a tail transmission shaft structure capable of being quickly disassembled and assembled, which does not adopt the original force transmission structure of a cylindrical tail pipe beam 2-1 and a pipe beam brace rod 2-2, and adopts a conical integrated tail pipe beam 2-3 to reduce the flight resistance during front flight and transfer tail load. The outer diameter of the integrated tail pipe beam 2-3 is linearly reduced along the direction that the tail pipe beam is axially far away from the airplane body, and the cross section of the integrated tail pipe beam is of an oval structure, so that the flight resistance can be reduced, the structure is simplified, and the butt joint surface is convenient to design. The joint of the integrated tail pipe beam 2-3 and the rear end of the machine body is provided with a butt joint surface, the butt joint surface is provided with two high-precision positioning holes and a row of connecting bolts, and the connecting bolts at the position can meet the requirements of quick disassembly and assembly, and is shown in figure 2.
The tail transmission shaft assembly comprises a tail transmission front shaft assembly 3-2 and a tail transmission rear shaft assembly 3-4 which are arranged in an integrated tail pipe beam 2-3, wherein the front end of the tail transmission front shaft assembly 3-2 is connected with a main tail reduction output 3-1, and the rear end of the tail transmission front shaft assembly 3-2 and the tail transmission rear shaft assembly 3-4 are connected by adopting a sliding fit type structure and can freely slide in a certain range along the axial direction, so that the axial float generated by unbalanced force during the working of the tail transmission shaft can be reduced; the tail transmission shaft is stable in normal rotation, when unbalance occurs, the whole shaft can swing up and down and bend, and the sliding structure can unload bending stress; the tail transmission front shaft assembly 3-2 and the tail transmission rear shaft assembly 3-4 are connected in a sliding insertion mode, the front portion of the tail transmission front shaft assembly 3-2 is connected with the main tail reducing output 3-1, and the positions of the connecting portions of the tail transmission front shaft assembly 3-2 and the tail transmission rear shaft assembly 3-4 and the interface of the integrated tail pipe beam 2-3 and the body are close to or the same so that the whole tail portion can be conveniently detached. Two bearing supports 3-3 and 3-5 are mounted on the tail transmission rear shaft assembly 3-4, only small displacement is likely to be generated between the tail transmission rear shaft assembly 3-4 and the bearing supports, the two bearing supports 3-3 and 3-5 are mounted on the integrated tail pipe beam 2-3 and used for radially supporting the whole tail transmission shaft (a tail transmission front shaft and a tail transmission rear shaft) in an inserting mode, and the tail transmission rear shaft assembly is shown in fig. 3. The rear end of the tail transmission rear shaft assembly 3-4 is connected with a tail speed reducer 3-6.
As shown in fig. 4, the tail drive front axle assembly 3-2 comprises a tail drive front axle 4-2, the front part of the tail drive front axle 4-2 is mounted on the main tail reducing output 3-1 through a membrane coupling 4-1, and the membrane coupling 4-1 is used for adjusting the different axialities of the main reducing shaft and the tail drive shaft; a diaphragm coupling 4-3 is arranged at the rear end of the tail transmission front shaft 4-2, and the diaphragm coupling 4-3 is used for adjusting the coaxiality of the tail transmission front shaft assembly and the tail transmission rear shaft assembly 3-4; the rear end of the diaphragm coupling 4-3 is connected with a sliding external spline 4-4, and the sliding external spline 4-4 and an internal spline arranged on the tail transmission rear shaft 3-4 are installed together to form the sliding fit type structure; the sliding spline pair is used for compensating axial length deviation of the two sections of shafts during installation and providing axial displacement compensation capability in a movement process, and the tail shaft can be quickly disconnected from the spline during disassembly and assembly.
As shown in fig. 5, the tail transmission rear shaft assembly 3-4 comprises a tail transmission rear shaft 4-5, the front end and the rear end of the tail transmission rear shaft 4-5 are both of sliding inner spline structures and are respectively connected with a tail transmission front shaft 4-2 and a tail speed reducer 3-6, the tail transmission rear shaft is provided with two bearing supports 3-3 and 3-5, the two bearing supports have the same structure, and simultaneously support the whole tail transmission shaft assembly to limit the axial serial motion of the whole tail transmission shaft and perform radial positioning. The tail-drive rear axle assembly 3-4 is supported in a suspension mode, the bearing supports 3-3 and 3-5 are composed of a plurality of parts, and each bearing support is mounted on a fixing hole of the integrated tail pipe beam 2-3 in a suspension mode through two groups of mounting bolts 6-9.
As shown in figure 6, the tail transmission rear shaft 4-5 is a thin and long thin-wall pipe shaft, a bearing installation sleeve 6-3 is installed on the outer ring of the tail transmission rear shaft in an interference mode, the bearing installation sleeve 6-3 cannot move in the axial direction after being installed, the inner ring of the supporting bearing 6-2 is installed on the bearing installation sleeve 6-3, the two sides of the bearing installation sleeve 6-3 are both provided with positioning mechanisms, and the supporting bearing 6-2 cannot slide back and forth on the bearing installation sleeve 6-3.
The bearing supports 3-3 and 3-5 structurally comprise a suspension support 6-4 and a clamping plate 6-1, wherein an outer ring of a support bearing 6-2 is clamped between the suspension support 6-4 and the clamping plate 6-1 and is fixedly connected through three groups of bolts 6-10, gaskets 6-11 and 6-12 and nuts 6-13; the outer circles of the three groups of bolts 6-10 are tangent to the outer circle of the support bearing 6-2, so that the outer circle of the support bearing 6-2 is prevented from rotating. The hanging support 6-4 is provided with a hanging part parallel to the tail transmission rear shaft 4-5, the hanging part is provided with two mounting holes, each mounting hole is provided with a clamping piece nut 6-5, and the clamping piece nuts are mounted on fixing holes formed in the integrated tail pipe beam 2-3 through mounting bolts 6-9. And the inner side and the outer side of a fixing hole formed in the integrated tail pipe beam 2-3 are respectively provided with a damping washer 6-7 and a damping washer 6-8 which are used for isolating the radial vibration of the tail transmission shaft assembly and adjusting the deviation when the whole tail end structure is reassembled again to realize the support of the damping pad. And an adjusting washer 6-6 with adjustable thickness is arranged on the inner side of each fixing hole and used for adjusting the distance between the tail transmission rear axle assembly 3-4 and the integrated tail pipe beam 2-3 during initial installation and adjusting the coaxiality of the tail transmission shaft.
When the assembly is disassembled, the connecting bolts at the interface of the integrated tail pipe beam 2-3 and the machine body are unscrewed, the connecting bolts at the tail transmission front shaft assembly 3-2 and the tail transmission rear shaft assembly 3-4 are unscrewed, the corresponding cable plugs are disconnected, the whole tail structure is dragged backwards, and then the integrated tail pipe beam 2-3 and the tail transmission rear shaft assembly 3-4 can be disassembled together. During installation, the whole integrated tail pipe beam 2-3 is butted with the machine body according to the positions of two positioning holes on the machine body butt interface, the internal spline and the external spline at the tail transmission front shaft assembly 3-2 and the tail transmission rear shaft assembly 3-4 are matched well, the connecting bolt is screwed down, and the cable plug is connected to finish the reinstallation. When the inner spline and the outer spline are matched, the coaxiality of the diaphragm coupling at each position is checked, and if the coaxiality does not meet the requirement, the thickness of the strippable gasket is adjusted. The whole dismounting process is fast and easy to operate, the dismounting of the tail structure can be completed without dismounting more parts, and the coaxiality of the tail transmission shaft does not need to be adjusted.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equally replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application, and are intended to be included within the scope of the present application.
Claims (8)
1. A quick-release helicopter tail transmission shaft assembly is characterized by comprising an integrated tail pipe beam (2-3), a tail transmission front shaft assembly (3-2) and a tail transmission rear shaft assembly (3-4) which are arranged in the integrated tail pipe beam (2-3), wherein the outer diameter of the integrated tail pipe beam (2-3) is linearly reduced along the direction far away from a helicopter body, the cross section of the integrated tail pipe beam is of an oval structure, a butt joint surface is arranged at the joint of the integrated tail pipe beam (2-3) and the rear end of the helicopter body, and a positioning hole is formed in the butt joint surface; the front end of the tail transmission front shaft component (3-2) is connected with the main tail reducing output (3-1), and the rear end of the tail transmission front shaft component (3-2) is connected with the tail transmission rear shaft component (3-4) in a sliding fit structure and can slide in a certain range along the axial direction; a bearing support is arranged on the tail transmission rear shaft assembly (3-4), and the bearing support is arranged on the integrated tail pipe beam and used for radially supporting the whole tail transmission shaft; the rear end of the tail transmission rear shaft assembly (3-4) is connected with a tail speed reducer (3-6).
2. The quick-release helicopter tail drive shaft assembly according to claim 1, characterized in that the tail drive front shaft assembly (3-2) comprises a tail drive front shaft (4-2), the front part of the tail drive front shaft (4-2) is mounted on the main tail reduction output (3-1) through a diaphragm coupling (4-1), the diaphragm coupling (4-1) is used for adjusting the different axialities of the main tail drive shaft and the tail drive shaft; the rear end of the tail transmission front shaft (4-2) is provided with a diaphragm coupling (4-3), and the diaphragm coupling (4-3) is used for adjusting the coaxiality of the tail transmission front shaft assembly and the tail transmission rear shaft assembly (3-4).
3. The quick release helicopter tail shaft assembly according to claim 2, characterized in that the rear end of the diaphragm coupling (4-3) is connected with a sliding external spline (4-4), and the sliding external spline (4-4) and the internal spline arranged on the tail shaft (3-4) are installed together to form the sliding fit structure.
4. The quick-release helicopter tail drive shaft assembly according to claim 1, characterized in that the tail drive rear shaft assembly (3-4) comprises a tail drive rear shaft (4-5), the front end and the rear end of the tail drive rear shaft (4-5) are both of sliding internal spline structures and are respectively connected with the tail drive front shaft (4-2) and the tail reducer (3-6), two bearing supports are arranged on the tail drive rear shaft (4-5), and the two bearing supports simultaneously support the whole tail drive shaft assembly, so that the axial running of the whole tail drive shaft is limited and the radial positioning is performed.
5. The quick-release helicopter tail drive shaft assembly according to claim 4, characterized in that the tail drive rear shaft assembly (3-4) is supported in a suspension manner, and each bearing support is suspended and installed on a fixing hole of the integrated tail pipe beam (2-3) through two sets of mounting bolts (6-9).
6. The quick-release helicopter tail drive shaft assembly according to claim 4, characterized in that the tail drive rear shaft (4-5) is an elongated thin-walled tubular shaft, a bearing mounting sleeve (6-3) is installed at the outer ring of the tail drive rear shaft in an interference manner, the bearing mounting sleeve (6-3) cannot move in the axial direction after being installed, the inner ring of the support bearing (6-2) is installed on the bearing mounting sleeve (6-3), and positioning mechanisms are arranged on both sides of the bearing mounting sleeve (6-3);
the bearing support (3) comprises a suspension support (6-4) and a clamping plate (6-1), an outer ring of the supporting bearing (6-2) is clamped between the suspension support (6-4) and the clamping plate (6-1), and the tail transmission rear shaft assembly (3-4) is fixed on the integrated tail pipe beam (2-3) through the suspension support (6-4).
7. The quick-release helicopter tail drive shaft assembly according to claim 6, characterized in that the suspension support (6-4) and the clamping plate (6-1) are fixedly connected through a plurality of groups of bolts (6-10), gaskets (6-11) and (6-12) and nuts (6-13), and the outer circles of the three groups of bolts (6-10) are tangent to the outer circle of the support bearing (6-2) to prevent the outer circle of the support bearing (6-2) from rotating; the hanging support (6-4) is provided with a hanging part parallel to the tail transmission rear shaft (4-5), the hanging part is provided with two mounting holes, each mounting hole is provided with a clamping piece nut (6-5), and the hanging part is mounted on a fixing hole formed in the integrated tail pipe beam (2-3) through a mounting bolt (6-9).
8. The quick-release helicopter tail drive shaft assembly according to claim 5, characterized in that the inside and outside of the fixing hole formed on the integrated tail pipe beam (2-3) are respectively provided with a vibration damping washer for isolating the radial vibration of the tail drive shaft assembly; and an adjusting washer (6-6) with adjustable thickness is arranged on the inner side of each fixing hole and used for adjusting the distance between the tail transmission rear shaft assembly (3-4) and the integrated tail pipe beam (2-3) during primary installation so as to adjust the coaxiality of the tail transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011114671.2A CN112238948A (en) | 2020-10-16 | 2020-10-16 | Quick-release helicopter tail transmission shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011114671.2A CN112238948A (en) | 2020-10-16 | 2020-10-16 | Quick-release helicopter tail transmission shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112238948A true CN112238948A (en) | 2021-01-19 |
Family
ID=74169011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011114671.2A Pending CN112238948A (en) | 2020-10-16 | 2020-10-16 | Quick-release helicopter tail transmission shaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112238948A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113086165A (en) * | 2021-04-20 | 2021-07-09 | 中国直升机设计研究所 | Helicopter with variable distance between main rotor and tail rotor |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1045098A (en) * | 1996-07-31 | 1998-02-17 | Japan Aviation Electron Ind Ltd | Unmanned helicopter for industrial use |
| RU2350515C1 (en) * | 2007-12-14 | 2009-03-27 | Открытое Акционерное Общество "Московский Вертолетный Завод Им. М.Л. Миля" | Helicopter transmission tail shaft |
| US20120298792A1 (en) * | 2009-12-02 | 2012-11-29 | Per-Erik Cardell | Dismountable helicopter |
| CN203612216U (en) * | 2013-11-25 | 2014-05-28 | 中国直升机设计研究所 | Staggered connecting piece for power transmission shaft |
| CN203638091U (en) * | 2013-12-16 | 2014-06-11 | 大连浦州航空科技有限公司 | Unmanned helicopter transmission device |
| US20150369326A1 (en) * | 2014-06-18 | 2015-12-24 | Bell Helicopter Textron Inc. | Rotating shaft damping with electro-rheological fluid |
| CN105339261A (en) * | 2013-06-28 | 2016-02-17 | 雅马哈发动机株式会社 | Unmanned helicopter |
| CN105620738A (en) * | 2016-01-05 | 2016-06-01 | 中国航空动力机械研究所 | Reducer connecting structure for helicopter and helicopter with same |
| CN105752350A (en) * | 2016-04-07 | 2016-07-13 | 湖北易瓦特科技股份有限公司 | Unmanned aerial equipment with fixed tail transmission shaft |
| US20160264237A1 (en) * | 2015-03-13 | 2016-09-15 | Bell Helicopter Textron Inc. | Friction damper with centering flexure |
| US20160332719A1 (en) * | 2015-03-31 | 2016-11-17 | Airbus Helicopters | Device for folding/unfolding a tail boom of a rotorcraft, an associated rotorcraft, and a corresponding folding/unfolding method |
| US20180009524A1 (en) * | 2016-07-06 | 2018-01-11 | Sikorsky Aircraft Corporation | Locking mechanisms for tail rotor drive disconnect couplings |
| CN107985572A (en) * | 2017-12-16 | 2018-05-04 | 江苏福莱尔航空科技有限公司 | A kind of modularization fast disassembly type unmanned helicopter |
| CN209164402U (en) * | 2018-11-09 | 2019-07-26 | 中国直升机设计研究所 | A kind of unmanned helicopter tail driving shaft support device |
| CN210526848U (en) * | 2019-09-19 | 2020-05-15 | 柚子航空智能科技(南京)有限公司 | Tail pipe transmission device of unmanned helicopter |
-
2020
- 2020-10-16 CN CN202011114671.2A patent/CN112238948A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1045098A (en) * | 1996-07-31 | 1998-02-17 | Japan Aviation Electron Ind Ltd | Unmanned helicopter for industrial use |
| RU2350515C1 (en) * | 2007-12-14 | 2009-03-27 | Открытое Акционерное Общество "Московский Вертолетный Завод Им. М.Л. Миля" | Helicopter transmission tail shaft |
| US20120298792A1 (en) * | 2009-12-02 | 2012-11-29 | Per-Erik Cardell | Dismountable helicopter |
| CN105339261A (en) * | 2013-06-28 | 2016-02-17 | 雅马哈发动机株式会社 | Unmanned helicopter |
| CN203612216U (en) * | 2013-11-25 | 2014-05-28 | 中国直升机设计研究所 | Staggered connecting piece for power transmission shaft |
| CN203638091U (en) * | 2013-12-16 | 2014-06-11 | 大连浦州航空科技有限公司 | Unmanned helicopter transmission device |
| US20150369326A1 (en) * | 2014-06-18 | 2015-12-24 | Bell Helicopter Textron Inc. | Rotating shaft damping with electro-rheological fluid |
| US20160264237A1 (en) * | 2015-03-13 | 2016-09-15 | Bell Helicopter Textron Inc. | Friction damper with centering flexure |
| US20160332719A1 (en) * | 2015-03-31 | 2016-11-17 | Airbus Helicopters | Device for folding/unfolding a tail boom of a rotorcraft, an associated rotorcraft, and a corresponding folding/unfolding method |
| CN105620738A (en) * | 2016-01-05 | 2016-06-01 | 中国航空动力机械研究所 | Reducer connecting structure for helicopter and helicopter with same |
| CN105752350A (en) * | 2016-04-07 | 2016-07-13 | 湖北易瓦特科技股份有限公司 | Unmanned aerial equipment with fixed tail transmission shaft |
| US20180009524A1 (en) * | 2016-07-06 | 2018-01-11 | Sikorsky Aircraft Corporation | Locking mechanisms for tail rotor drive disconnect couplings |
| CN107985572A (en) * | 2017-12-16 | 2018-05-04 | 江苏福莱尔航空科技有限公司 | A kind of modularization fast disassembly type unmanned helicopter |
| CN209164402U (en) * | 2018-11-09 | 2019-07-26 | 中国直升机设计研究所 | A kind of unmanned helicopter tail driving shaft support device |
| CN210526848U (en) * | 2019-09-19 | 2020-05-15 | 柚子航空智能科技(南京)有限公司 | Tail pipe transmission device of unmanned helicopter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113086165A (en) * | 2021-04-20 | 2021-07-09 | 中国直升机设计研究所 | Helicopter with variable distance between main rotor and tail rotor |
| CN113086165B (en) * | 2021-04-20 | 2022-11-04 | 中国直升机设计研究所 | Helicopter with variable distance between main rotor and tail rotor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6242214B2 (en) | ||
| CN112238948A (en) | Quick-release helicopter tail transmission shaft assembly | |
| CN211711095U (en) | Helicopter tail transmission shaft device | |
| CN110617277B (en) | Elastic coupling with composite material membrane disc | |
| CN109606638B (en) | Sunken hinge type flap rocker arm supporting structure | |
| CN214742948U (en) | Double-layer vibration isolation suspension device for vehicle and vehicle | |
| CN110864050A (en) | Novel high-elasticity coupling for ship | |
| US5427348A (en) | Mounting for a gas turbine engine | |
| CN109578434B (en) | Vibration reduction sliding bearing for long shaft middle support | |
| CN203500318U (en) | Gantry machine tool coupler | |
| CN203868165U (en) | Multi-corrugated membranous disc coupler | |
| RU2561401C2 (en) | Dead cardan joint for helicopter drive | |
| CN105182501B (en) | A kind of large caliber reflecting mirror elastic connection expansion set | |
| CN112128259B (en) | Coupling with rubber bushing | |
| CN211314883U (en) | Elastic double-shaft coupling device | |
| CN209444961U (en) | A kind of buffer compensator | |
| CN212479467U (en) | Transmission chain of wind turbine generator and wind turbine generator comprising same | |
| CN111232249A (en) | Support structure suitable for satellite orbital transfer engine | |
| CN217874094U (en) | Gearbox shock attenuation fixed bolster | |
| CN218868036U (en) | Connecting shaft | |
| CN212963829U (en) | Steel bushing dynamic balance fixing device | |
| CN115076222B (en) | Thrust bearing longitudinal vibration damper with decoupling thrust and supporting function | |
| CN212501060U (en) | Unmanned aerial vehicle afterbody transmission | |
| US2409323A (en) | Aircraft power plant arrangement | |
| CN220465241U (en) | Transmission shaft assembly, transmission system and automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210119 |