CN206394883U - A kind of main rotor hub of depopulated helicopter - Google Patents
A kind of main rotor hub of depopulated helicopter Download PDFInfo
- Publication number
- CN206394883U CN206394883U CN201720010665.XU CN201720010665U CN206394883U CN 206394883 U CN206394883 U CN 206394883U CN 201720010665 U CN201720010665 U CN 201720010665U CN 206394883 U CN206394883 U CN 206394883U
- Authority
- CN
- China
- Prior art keywords
- thrust bearing
- rotor head
- main shaft
- depopulated helicopter
- main
- 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.)
- Expired - Fee Related
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- Toys (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
A kind of main rotor hub of depopulated helicopter, it is related to Helicopter Technology field；It comprising rotor head, termination fastener, the first thrust bearing, the second thrust bearing, retaining ring, fastening bolt, roller bearing, main shaft, through connecting rod, boss；Termination fastener is provided with described rotor head, main shaft is plugged in rotor head, it is provided with the left of boss, boss to be provided with three steps, and three steps on main shaft and is sequentially installed with the first thrust bearing, the second thrust bearing, retaining ring and roller bearing from left to right；Described retaining ring is fixed with rotor head by some fastening bolts；Described is fixedly connected through connecting rod through main shaft with termination fastener.A kind of main rotor hub of depopulated helicopter described in the utility model, reduces the quantity of fastener so that assembly technology is simpler, reduces rigging error, reduces maintenance cost, 1/2nd of about similar hub maintenance cost.
Description
Technical field
The utility model is related to Helicopter Technology field, and in particular to a kind of main rotor hub of depopulated helicopter.
Background technology
Propeller hub is that each blade installs the position combined, is the important composition part of helicopter positioned at the end of main rotor,
The form of rotor is determined by the form of hub, with the development that material, technique and rotor are theoretical, at present
The hub form applied in practice has hinge type, seesaw type, hingeless formula and bearing-free formula.The main rotation of present depopulated helicopter
Wing hub continues the design of manned helicopter mostly, and this just brings a series of problem, such as design requirement is high, maintenance cost
Height, assembling process is complicated and less economical etc..
Therefore it is necessary that providing a kind of easy assembling, the suitable depopulated helicopter that error is small, control is flexible, maintenance cost is low uses
Main rotor hub.
Utility model content
The purpose of this utility model is be easily assembled there is provided one kind for the defect and deficiency of prior art, assemble mistake
The main rotor hub for the depopulated helicopter that difference is small, control is flexible, maintenance cost is low.
To achieve the above object, the technical solution adopted in the utility model is：It includes rotor head, termination fastener, the
One thrust bearing, the second thrust bearing, retaining ring, fastening bolt, roller bearing, main shaft, through connecting rod, boss；Described rotation
Termination fastener is provided with wing head, main shaft is plugged in rotor head, is provided with main shaft on the left of boss, boss and is provided with three
The first thrust bearing, the second thrust bearing, retaining ring and Roller Shaft are sequentially installed with individual step, and three steps from left to right
Hold；Described retaining ring is fixed with rotor head by some fastening bolts；Described fastens through connecting rod through main shaft with termination
Part is fixedly connected.
Preferably, the root of described rotor head is additionally provided with pitch control rocking arm, and pitch control rocking arm and rotor
Head is formed in one structure.
Preferably, being provided with blade mounting hole and blade adjustment hole on described rotor head.
Preferably, described the first thrust bearing and the cylindrical of the second thrust bearing is used between the endoporus of rotor head
Interference fit.
Preferably, the cylindrical of described retaining ring uses interference fit between the endoporus of rotor head.
Preferably, the cylindrical of described roller bearing uses interference fit between the endoporus of rotor head.
Preferably, the cylindrical of the main shaft uses interference between the first thrust bearing, the endoporus of the second thrust bearing
Coordinate.
Preferably, the cylindrical of described main shaft is coordinated between the endoporus of retaining ring using gap.
Preferably, the cylindrical of described main shaft uses interference fit between the endoporus of roller bearing.
When the utility model is operated, blade is fixed in blade mounting hole；Described blade adjustment hole regulation blade exists
Angle in Plane of rotation；Described pitch control rocking arm and the integrated formed structure of rotor head improve the control essence of pitch
Degree, while also solving the levelling problems that pitch controls rocking arm；Attachment structure between described main shaft and retaining ring prevents from stopping
Thrust bearing extruding retaining ring makes its stuck；Described boss limits the position of roller bearing during helicopter rotates at a high speed
Move.
After said structure, what the utility model was produced has the beneficial effect that：It is described in the utility model that a kind of nobody is straight
The main rotor hub of the machine of liter, reduces the quantity of fastener so that assembly technology is simpler, reduces rigging error, reduce
Maintenance cost, 1/2nd of about similar hub maintenance cost, the utility model have it is simple in construction, set rationally, make
Low cost and other advantages.
Brief description of the drawings
Fig. 1 is explosive view of the present utility model；
Fig. 2 is the structure chart of the utility model rotor head；
Fig. 3 is Fig. 2 sectional view；
Fig. 4 is Fig. 2 side view；
Fig. 5 is installation diagram of the present utility model.
Description of reference numerals：
Rotor head 1, termination fastener 2, the first thrust bearing 3, the second thrust bearing 4, retaining ring 5, fastening bolt 6, rolling
Sub- bearing 7, main shaft 8, through connecting rod 9, boss 10, pitch control rocking arm 11, blade mounting hole 12, blade adjustment hole 13.
Embodiment
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Referring to such as Fig. 1 --- shown in Fig. 5, present embodiment is adopted the following technical scheme that：It includes rotor head 1, end
Head fastener 2, the first thrust bearing 3, the second thrust bearing 4, retaining ring 5, fastening bolt 6, roller bearing 7, main shaft 8, run through
Connecting rod 9, boss 10；Termination fastener 2 is provided with described rotor head 1, main shaft 8 is plugged in rotor head 1, is set on main shaft 8
Boss 10 is equipped with, the left side of boss 10 is provided with three steps, and three steps is sequentially installed with the first thrust from left to right
Bearing 3, the second thrust bearing 4, retaining ring 5 and roller bearing 7；Described retaining ring 5 passes through some fastening bolts with rotor head 1
6 fix；Described is fixedly connected through connecting rod 9 through main shaft 8 with termination fastener 2.
Preferably, the root of described rotor head 1 be additionally provided with pitch control rocking arm 11, and pitch control rocking arm 11 with
Rotor head 1 is formed in one structure.
Preferably, being provided with blade mounting hole 12 and blade adjustment hole 13 on described rotor head 1.
Preferably, between the first described thrust bearing 3 and the endoporus of the cylindrical and rotor head 1 of the second thrust bearing 4
Using interference fit.
Preferably, using interference fit between the endoporus of the cylindrical and rotor head 1 of described retaining ring 5.
Preferably, using interference fit between the endoporus of the cylindrical and rotor head 1 of described roller bearing 7.
Preferably, preferably, cylindrical and the first thrust bearing 3, the endoporus of the second thrust bearing 4 of the main shaft 8
Between using interference fit.
Preferably, being coordinated between the endoporus of the cylindrical and retaining ring 5 of described main shaft 8 using gap.
Preferably, using interference fit between the endoporus of the cylindrical and roller bearing 7 of described main shaft 8.
When present embodiment is operated, blade is fixed in blade mounting hole 12；Described blade adjustment hole 13 is adjusted
Save angle of the blade in Plane of rotation；The integrated formed structure of described pitch control rocking arm 11 and rotor head 1 improves spiral shell
Away from control accuracy, while also solve pitch control rocking arm levelling problems；Company between described main shaft 8 and retaining ring 5
Binding structure prevents thrust bearing from extruding retaining ring 5 and making its stuck；Described boss 10 is limited during helicopter rotates at a high speed
The displacement of roller bearing 7 processed.
After said structure, what present embodiment was produced has the beneficial effect that：One described in present embodiment
The main rotor hub of depopulated helicopter is planted, the quantity of fastener is reduced so that assembly technology is simpler, assembling is reduced and misses
Difference, reduces maintenance cost, 1/2nd of about similar hub maintenance cost, present embodiment have it is simple in construction,
Set rationally, low manufacture cost the advantages of.
General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.This
The technical staff of industry is retouched in above-described embodiment and specification it should be appreciated that the utility model is not restricted to the described embodiments
That states simply illustrates principle of the present utility model, on the premise of the utility model spirit and scope are not departed from, the utility model
Various changes and modifications are also had, these changes and improvements are both fallen within the range of claimed the utility model.This practicality is new
Scope is claimed by appended claims and its equivalent thereof in type.
Claims (9)
1. a kind of main rotor hub of depopulated helicopter, it is characterised in that：It includes rotor head, termination fastener, the first thrust
Bearing, the second thrust bearing, retaining ring, fastening bolt, roller bearing, main shaft, through connecting rod, boss；In described rotor head
Termination fastener is provided with, main shaft is plugged in rotor head, is provided with main shaft on the left of boss, boss and is provided with three platforms
The first thrust bearing, the second thrust bearing, retaining ring and roller bearing are sequentially installed with rank, and three steps from left to right；
Described retaining ring is fixed with rotor head by some fastening bolts；Described consolidates through connecting rod through main shaft with termination fastener
Fixed connection.
2. a kind of main rotor hub of depopulated helicopter according to claim 1, it is characterised in that：Described rotor head
Root is additionally provided with pitch control rocking arm, and pitch control rocking arm and rotor head are formed in one structure.
3. a kind of main rotor hub of depopulated helicopter according to claim 1, it is characterised in that：On described rotor head
It is provided with blade mounting hole and blade adjustment hole.
4. a kind of main rotor hub of depopulated helicopter according to claim 1, it is characterised in that：The first described thrust
Bearing and the cylindrical of the second thrust bearing use interference fit between the endoporus of rotor head.
5. a kind of main rotor hub of depopulated helicopter according to claim 1, it is characterised in that：Described retaining ring
It is cylindrical that interference fit is used between the endoporus of rotor head.
6. a kind of main rotor hub of depopulated helicopter according to claim 1, it is characterised in that：Described roller bearing
It is cylindrical between the endoporus of rotor head using interference fit.
7. a kind of main rotor hub of depopulated helicopter according to claim 1, it is characterised in that：The main shaft it is cylindrical
Using interference fit between the first thrust bearing, the endoporus of the second thrust bearing.
8. a kind of main rotor hub of depopulated helicopter according to claim 1, it is characterised in that：Outside described main shaft
Coordinated between circle and the endoporus of retaining ring using gap.
9. a kind of main rotor hub of depopulated helicopter according to claim 1, it is characterised in that：Outside described main shaft
Using interference fit between circle and the endoporus of roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720010665.XU CN206394883U (en) | 2017-01-05 | 2017-01-05 | A kind of main rotor hub of depopulated helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720010665.XU CN206394883U (en) | 2017-01-05 | 2017-01-05 | A kind of main rotor hub of depopulated helicopter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206394883U true CN206394883U (en) | 2017-08-11 |
Family
ID=59512528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720010665.XU Expired - Fee Related CN206394883U (en) | 2017-01-05 | 2017-01-05 | A kind of main rotor hub of depopulated helicopter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206394883U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105363A (en) * | 2017-11-29 | 2018-06-01 | 中国直升机设计研究所 | A kind of seesaw type unmanned helicopter pitch hinge |
| CN108891593A (en) * | 2018-09-03 | 2018-11-27 | 天津曙光天成科技有限公司 | A kind of rotor head mounting structure and unmanned helicopter |
-
2017
- 2017-01-05 CN CN201720010665.XU patent/CN206394883U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105363A (en) * | 2017-11-29 | 2018-06-01 | 中国直升机设计研究所 | A kind of seesaw type unmanned helicopter pitch hinge |
| CN108105363B (en) * | 2017-11-29 | 2021-03-30 | 中国直升机设计研究所 | Seesaw type distance-variable hinge of unmanned helicopter |
| CN108891593A (en) * | 2018-09-03 | 2018-11-27 | 天津曙光天成科技有限公司 | A kind of rotor head mounting structure and unmanned helicopter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20180105 |