CN206719533U - It is a kind of to be easy to integral demounting, the helicopter tail rotor structure for changing belt of adjustment-free - Google Patents
It is a kind of to be easy to integral demounting, the helicopter tail rotor structure for changing belt of adjustment-free Download PDFInfo
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- CN206719533U CN206719533U CN201720046038.1U CN201720046038U CN206719533U CN 206719533 U CN206719533 U CN 206719533U CN 201720046038 U CN201720046038 U CN 201720046038U CN 206719533 U CN206719533 U CN 206719533U
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- helicopter
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Abstract
The utility model is related to it is a kind of be easy to integral demounting, adjustment-free replacing belt helicopter tail rotor structure, including mounting seat, tail-rotor main shaft, tail-rotor hub, synchronous pulley and steering wheel；The mounting seat includes erection support and mounting base, and the erection support and mounting base removably surround a frame structure；Main mounting hole is offered in one side wall of the erection support, the steering wheel is detachably connected with another side wall of the erection support；Spindle mounting hole is offered in the mounting seat；A part for the tail-rotor main shaft runs through the spindle mounting hole, and the synchronous pulley can be arranged on the inside of the mounting seat with the tail-rotor main shaft synchronous axial system, the synchronous pulley.When changing driving belt, without whole device is disassembled, it is only necessary to which the replacing of belt can be completed by removing support baseboard；It is and convenient and swift as long as support carriers are removed from helicopter main body when needing to remove whole helicopter tail rotor structure.
Description
Technical field
The utility model belongs to field of mechanical technique, and in particular to a kind of to be easy to integral demounting, the replacing belt of adjustment-free
Helicopter tail rotor structure.
Background technology
Helicopter tail rotor has balance main rotor moment of torsion concurrently with manipulating the dual-use function in helicopter course.Helicopter tail rotor turns
Speed needs the proportionate relationship certain with main rotor holding to realize the purpose of balance main rotor reactive torque, and by controlling blade
Become elongation and change manipulation of the tail-rotor aerodynamic force size realization to helicopter course.Tail-rotor part is moved by Helicopter Main Reducer
Power export structure is based on gear and belt transmission.Gear transmission mode needs to arrange that the transmission through whole fuselage tail boom connects
The mechanical structure such as bar, tail gear-box and corresponding shaft coupling, bevel gear and gear-box；Although meeting the function of tail-rotor,
It is but to have the following disadvantages：Increase fuselage weight and complicated in mechanical structure degree, larger shake can be also brought when high speed rotates
Dynamic and noise.
Middle-size and small-size helicopter generally uses synchronous pulley as tail-rotor transmission mechanism.In the integral machine of middle-size and small-size helicopter
The inspection of belt wheel is periodically synchronized with it and replacing generally requires to disassemble fuselage completely, also needs to finely tune belt wheel every time after installation
To ensure synchronously to carry enough pretightning forces, these requirements can all increase the difficulty of helicopter regular maintenance and complicated journey for position
Degree.
Utility model content
In order to solve above mentioned problem existing for prior art, the utility model provides one kind and is easy to integral demounting, exempts to adjust
The helicopter tail rotor structure of whole replacing belt.The helicopter tail rotor structure is when changing driving belt, without will entirely fill
Put and disassemble, it is only necessary to which the replacing of belt can be completed by removing support baseboard；And needing to remove whole helicopter tail rotor structure
When, it is convenient and swift as long as support carriers are removed from helicopter main body.
Technical scheme is used by the utility model：A kind of replacing belt for being easy to integral demounting, adjustment-free is gone straight up to
Tail paddle structure, including mounting seat, tail-rotor main shaft, tail-rotor hub, synchronous pulley and steering wheel；
The mounting seat includes erection support and mounting base, and the erection support and mounting base removably surround one
Individual frame structure；Offer main mounting hole in one side wall of the erection support, it is removable in another side wall of the erection support
It is connected with the steering wheel with unloading；Spindle mounting hole is offered in the mounting seat；The main mounting hole is used for and helicopter main body
It is detachably connected by screw；
A part for the tail-rotor main shaft runs through the spindle mounting hole, and the tail-rotor hub and synchronous pulley are set in institute
State on tail-rotor main shaft, tail-rotor frame is installed with the tail-rotor hub, the tail-rotor frame is used to fix tail-rotor blade；The tail-rotor hub is set
Putting can set in the top of the tail-rotor main shaft, the synchronous pulley with the tail-rotor main shaft synchronous axial system, the synchronous pulley
Put in the inside of the mounting seat.
When needing to change driving belt, it is only necessary to the mounting base under dismounting, you can the synchronous pulley is complete
Exposure, it is convenient and swift without being disassembled to whole mechanism, considerably reduce the working strength of operating personnel.Needing
When removing whole helicopter tail rotor structure, as long as the screw in main mounting hole is write, you can complete whole helicopter tail rotor
The dismounting of structure, it is convenient and swift.
To ensure the stability of the tail-rotor main shaft, preferable technical scheme is that the mounting base is horizontally set on institute
The bottom of erection support is stated, the spindle mounting hole includes the first mounting hole and the second mounting hole, and first mounting hole opens up
On the mounting base, second mounting hole is opened on the erection support；The tail-rotor main shaft is vertically through described
Mounting seat.
Using two spindle mounting holes, it ensure that the tail-rotor main shaft remains at vertical state, ensure that tail-rotor master
The operation stability of axle or even whole helicopter tail rotor.
Further, to reduce the frictional force during tail-rotor main axis, preferable technical scheme is first peace
Clutch shaft bearing is provided with dress hole, second bearing is provided with second mounting hole；The clutch shaft bearing and second bearing are arranged
On the tail-rotor main shaft.
To prevent slip of the tail-rotor main shaft in axial direction, preferable technical scheme is the inwall of first mounting hole
Bottom is installed with the first bracing ring, and the clutch shaft bearing is step bearing, the profile of the clutch shaft bearing and the described first installation
The shape in hole is engaged.
Coordinated using clutch shaft bearing and the first bracing ring, the first bracing ring provides support for the tail-rotor main shaft, to ensure
The upward stability of the tail-rotor main shaft holding shaft.
As another supporting way, the shaft shoulder is extended outward in the middle part of the tail-rotor main shaft, the shaft shoulder is arranged on institute
State the top of second bearing.Now, offseted by second bearing and the shaft shoulder, support is provided for the tail-rotor main shaft, to ensure
The upward stability of the tail-rotor main shaft holding shaft.
Certainly, above two can exist simultaneously to the supporting way of tail-rotor main shaft, to obtain more preferable support effect,
This is just repeated no more.
According to one embodiment of the present utility model, the erection support and mounting base are detachably connected by screw.
The screw is soket head cap screw.
Mode (is fixedly connected with) with the fastening of synchronous pulley as a kind of tail-rotor main shaft, the helicopter tail rotor structure is also wrapped
Trip bolt is included, fastener hole is offered on the synchronous pulley, the position that the tail-rotor main shaft corresponds to the fastener hole offers
Fixing groove, the trip bolt run through the fastener hole and fixing groove simultaneously.
Further, the number of the fastener hole is two, axis of two fastener holes on the tail-rotor main shaft
It is symmetrical arranged.The uniformity of stress can be ensured by being symmetrical arranged, and then ensure the long-play of the synchronous pulley.
It is of course also possible to select the mode of another fastening tail-rotor main shaft and synchronous pulley：The tail-rotor main shaft with it is described
Synchronous pulley reaches the effect of run-in synchronism by key connection.
As a kind of mounting means of steering wheel, the steering wheel is detachably connected by screw and the erection support.
The beneficial effects of the utility model are：
The utility model provide it is a kind of be easy to integral demounting, adjustment-free replacing belt helicopter tail rotor structure.Institute
Helicopter tail rotor structure is stated when changing driving belt, without whole device is disassembled, it is only necessary to the mounting base under dismounting,
The synchronous pulley can be completely exposed, it is convenient and swift without being disassembled to whole mechanism, considerably reduce behaviour
Make the working strength of personnel.And when needing to remove whole helicopter tail rotor structure, as long as support carriers are from helicopter main body
Upper dismounting, it is convenient and swift.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment in the utility model；
Fig. 2 is the sectional view of embodiment in the utility model；
Fig. 3 is the partial enlarged drawing of A in Fig. 2；
Fig. 4 is the structural representation of erection support；
Fig. 5 is the structural representation of erection support；
In figure：1st, mounting seat；11st, mounting base；111st, the first mounting hole；112nd, clutch shaft bearing；113rd, the first support
Circle；12nd, erection support；121st, the second mounting hole；122nd, second bearing；123rd, main mounting hole；2nd, tail-rotor main shaft；21st, the shaft shoulder；
22nd, fixing groove；3rd, tail-rotor hub；31st, tail-rotor frame；4th, synchronous pulley；41st, fastener hole；5th, screw；6th, steering wheel.
Embodiment
With reference to embodiment, content of the present utility model is further illustrated.It should be appreciated that implementation of the present utility model
The following examples are not limited to, any formal accommodation and/or change made to the utility model fall within this
Utility model protection scope.
In the utility model, if not refering in particular to, all parts, percentage are unit of weight, all equipment and raw material
Deng being commercially available or the industry is conventional.Method in following embodiments, it is this area unless otherwise instructed
Conventional method.
Embodiment 1
As Figure 1-5, present embodiments provide a kind of replacing belt for being easy to integral demounting, adjustment-free and go straight up to tail
Paddle structure, including mounting seat 1, tail-rotor main shaft 2, tail-rotor hub 3, synchronous pulley 4 and steering wheel 6；
The mounting seat 1 includes erection support 12 and mounting base 11, and the erection support 12 and mounting base 11 pass through
Soket head cap screw 5 removably surrounds a frame structure；The mounting base 11 is horizontally set on the erection support 12
Bottom, spindle mounting hole is offered in the mounting seat 1, main mounting hole 123 is offered in a side wall of the erection support 12,
The steering wheel 6 is detachably connected with by screw in another side wall of the erection support 12；The spindle mounting hole includes
First mounting hole 111 and the second mounting hole 121, first mounting hole 111 are opened on the mounting base 11, and described second
Mounting hole 121 is opened on the erection support 12；
A part for the tail-rotor main shaft 2 runs through the mounting hole 121 of the first mounting hole 111 and second vertically, and described
Clutch shaft bearing 112 is provided with one mounting hole 111, second bearing 122 is provided with second mounting hole 121；The clutch shaft bearing
112 and second bearing 122 be set on the tail-rotor main shaft 2；The tail-rotor hub 3 and synchronous pulley 4 are set in the tail
On oar main shaft 2, tail-rotor frame 31 is installed with the tail-rotor hub 3, the tail-rotor hub 3 is arranged on the top of the tail-rotor main shaft 2, institute
The inside of the mounting seat 1 can be arranged on the synchronous axial system of tail-rotor main shaft 2, the synchronous pulley 4 by stating synchronous pulley 4.
The inwall bottom of first mounting hole 111 is installed with the first bracing ring 113, and the clutch shaft bearing 112 is step
Bearing, the profile of the clutch shaft bearing 112 are engaged with the shape of first mounting hole 111.Use clutch shaft bearing 112 and
One bracing ring 113 coordinates, and the first bracing ring 113 is that the tail-rotor main shaft 2 provides support, to ensure that the tail-rotor main shaft 2 is kept
Stability on axial direction.
The middle part of the tail-rotor main shaft 2 extends outward the shaft shoulder 21, and the shaft shoulder 21 is arranged on the second bearing 122
Top.Now, offseted by second bearing 122 and the shaft shoulder 21, support is provided for the tail-rotor main shaft 2, to ensure the tail
The upward stability of the holding shaft of oar main shaft 2.
The helicopter tail rotor structure also includes trip bolt, and fastener hole 41 is offered on the synchronous pulley 4, described tight
The number of solid hole 41 is two, and two fastener holes 41 are set on the axisymmetrical of the tail-rotor main shaft 2；The tail-rotor master
The position of the corresponding fastener hole 41 of axle 2 offers fixing groove 22, and the trip bolt is simultaneously through the fastener hole 41 and solid
Determine groove 22.Symmetrically arranged fastener hole 41 can ensure the uniformity of the stress of synchronous pulley 4, and then ensure the timing belt
The long-play of wheel 4.
When needing to change driving belt, it is only necessary to the mounting base 11 under dismounting, you can the synchronous pulley 4 is complete
Full exposure, it is convenient and swift without being disassembled to whole mechanism, considerably reduce the working strength of operating personnel.
Embodiment 2
As Figure 1-5, present embodiments provide a kind of replacing belt for being easy to integral demounting, adjustment-free and go straight up to tail
Paddle structure, including mounting seat 1, tail-rotor main shaft 2, tail-rotor hub 3, synchronous pulley 4 and steering wheel 6；
The mounting seat 1 includes erection support 12 and mounting base 11, and the erection support 12 and mounting base 11 pass through
Soket head cap screw 5 removably surrounds a frame structure；The mounting base 11 is horizontally set on the erection support 12
Bottom, spindle mounting hole is offered in the mounting seat 1, main mounting hole 123 is offered in a side wall of the erection support 12,
The steering wheel 6 is detachably connected with by screw in another side wall of the erection support 12；The spindle mounting hole includes
First mounting hole 111 and the second mounting hole 121, first mounting hole 111 are opened on the mounting base 11, and described second
Mounting hole 121 is opened on the erection support 12；
A part for the tail-rotor main shaft 2 runs through the mounting hole 121 of the first mounting hole 111 and second vertically, and described
Clutch shaft bearing 112 is provided with one mounting hole 111, second bearing 122 is provided with second mounting hole 121；The clutch shaft bearing
112 and second bearing 122 be set on the tail-rotor main shaft 2；The tail-rotor hub 3 and synchronous pulley 4 are set in the tail
On oar main shaft 2, tail-rotor frame 31 is installed with the tail-rotor hub 3, the tail-rotor hub 3 is arranged on the top of the tail-rotor main shaft 2, institute
The inside of the mounting seat 1 can be arranged on the synchronous axial system of tail-rotor main shaft 2, the synchronous pulley 4 by stating synchronous pulley 4.
The inwall bottom of first mounting hole 111 is installed with the first bracing ring 113, and the clutch shaft bearing 112 is step
Bearing, the profile of the clutch shaft bearing 112 are engaged with the shape of first mounting hole 111.Use clutch shaft bearing 112 and
One bracing ring 113 coordinates, and the first bracing ring 113 is that the tail-rotor main shaft 2 provides support, to ensure that the tail-rotor main shaft 2 is kept
Stability on axial direction.
The tail-rotor main shaft 2 and the synchronous pulley 4 reach the effect of run-in synchronism by key connection.
When needing to change driving belt, it is only necessary to the mounting base 11 under dismounting, you can the synchronous pulley 4 is complete
Full exposure, it is convenient and swift without being disassembled to whole mechanism, considerably reduce the working strength of operating personnel.
It should be noted last that above example is only unrestricted to illustrate the technical solution of the utility model, to the greatest extent
The utility model is described in detail with reference to preferred embodiment for pipe, should be understood that and the foregoing is only this practicality newly
The embodiment of type, be not used to limit the scope of protection of the utility model, it is all it is of the present utility model spirit and
Within principle, any modification, equivalent substitution and improvements done etc., it should be included within the scope of protection of the utility model.
Claims (10)
1. a kind of be easy to integral demounting, the helicopter tail rotor structure for changing belt of adjustment-free, it is characterised in that including mounting seat
(1), tail-rotor main shaft (2), tail-rotor hub (3), synchronous pulley (4) and steering wheel (6)；
The mounting seat (1) includes erection support (12) and mounting base (11), the erection support (12) and mounting base
(11) frame structure is removably surrounded；Main mounting hole (123), institute are offered in one side wall of the erection support (12)
State and the steering wheel (6) is detachably connected with another side wall of erection support (12)；Main shaft is offered on the mounting seat (1)
Mounting hole；
A part for the tail-rotor main shaft (2) runs through the spindle mounting hole, and the tail-rotor hub (3) and synchronous pulley (4) cover
It is located on the tail-rotor main shaft (2), tail-rotor frame (31) is installed with the tail-rotor hub (3), the tail-rotor hub (3) is arranged on described
The top of tail-rotor main shaft (2), the synchronous pulley (4) can be with tail-rotor main shaft (2) synchronous axial system, the synchronous pulleys
(4) it is arranged on the inside of the mounting seat (1).
2. helicopter tail rotor structure according to claim 1, it is characterised in that the mounting base (11) is horizontally set on
The bottom of the erection support (12), the spindle mounting hole include the first mounting hole (111) and the second mounting hole (121), institute
State the first mounting hole (111) to be opened on the mounting base (11), second mounting hole (121) is opened in the installation branch
On seat (12)；The tail-rotor main shaft (2) runs through the mounting seat (1) vertically.
3. helicopter tail rotor structure according to claim 2, it is characterised in that be provided with first mounting hole (111)
Clutch shaft bearing (112), second mounting hole (121) is interior to be provided with second bearing (122)；The clutch shaft bearing (112) and second
Bearing (122) is set on the tail-rotor main shaft (2).
4. helicopter tail rotor structure according to claim 3, it is characterised in that the inwall of first mounting hole (111)
Bottom is installed with the first bracing ring (113), and the clutch shaft bearing (112) is step bearing, the profile of the clutch shaft bearing (112)
It is engaged with the shape of first mounting hole (111).
5. helicopter tail rotor structure according to claim 3, it is characterised in that the middle part of the tail-rotor main shaft (2) is outside
Extend the shaft shoulder (21), the shaft shoulder (21) is arranged on the top of the second bearing (122).
6. helicopter tail rotor structure according to claim 1, it is characterised in that the erection support (12) and mounting base
(11) it is detachably connected by screw (5).
7. helicopter tail rotor structure according to claim 6, it is characterised in that the screw (5) is soket head cap screw.
8. according to any described helicopter tail rotor structures of claim 1-7, it is characterised in that described also including trip bolt
Fastener hole (41) is offered on synchronous pulley (4), the position of the corresponding fastener hole (41) of the tail-rotor main shaft (2) offers admittedly
Determine groove (22), the trip bolt runs through the fastener hole (41) and fixing groove (22) simultaneously.
9. helicopter tail rotor structure according to claim 8, it is characterised in that the number of the fastener hole (41) is two
Individual, two fastener holes (41) are set on the axisymmetrical of the tail-rotor main shaft (2).
10. helicopter tail rotor structure according to claim 1, it is characterised in that the steering wheel (6) by screw with it is described
Erection support (12) is detachably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720046038.1U CN206719533U (en) | 2017-01-13 | 2017-01-13 | It is a kind of to be easy to integral demounting, the helicopter tail rotor structure for changing belt of adjustment-free |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720046038.1U CN206719533U (en) | 2017-01-13 | 2017-01-13 | It is a kind of to be easy to integral demounting, the helicopter tail rotor structure for changing belt of adjustment-free |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206719533U true CN206719533U (en) | 2017-12-08 |
Family
ID=60500387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720046038.1U Active CN206719533U (en) | 2017-01-13 | 2017-01-13 | It is a kind of to be easy to integral demounting, the helicopter tail rotor structure for changing belt of adjustment-free |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206719533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109515715A (en) * | 2018-12-24 | 2019-03-26 | 飞瑞航空科技（江苏）有限公司 | A kind of adjustable plant protection drone tail-rotor mechanism |
-
2017
- 2017-01-13 CN CN201720046038.1U patent/CN206719533U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109515715A (en) * | 2018-12-24 | 2019-03-26 | 飞瑞航空科技（江苏）有限公司 | A kind of adjustable plant protection drone tail-rotor mechanism |
| CN109515715B (en) * | 2018-12-24 | 2024-02-20 | 飞瑞航空科技（江苏）有限公司 | Plant protection unmanned aerial vehicle tail oar mechanism with adjustable |
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