CN207450248U - A kind of lifting airscrew head - Google Patents
A kind of lifting airscrew head Download PDFInfo
- Publication number
- CN207450248U CN207450248U CN201721324432.3U CN201721324432U CN207450248U CN 207450248 U CN207450248 U CN 207450248U CN 201721324432 U CN201721324432 U CN 201721324432U CN 207450248 U CN207450248 U CN 207450248U
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- China
- Prior art keywords
- support base
- connecting rod
- bearing
- main shaft
- lifting airscrew
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Abstract
The utility model discloses a kind of lifting airscrew heads, and including the main shaft being vertically arranged, support base is fixed on main shaft, and connecting rod horizontal symmetrical sets and is connected with support base, and paddle folder is symmetrical arranged and is rotatably coupled in connecting rod, it is characterised in that：Each connecting rod first end is provided with limiting section, connecting rod second end is connected with support base, the cavity for accommodating connecting rod is provided in each paddle folder, is provided with boss in the cavity, boss both sides are provided with clutch shaft bearing and second bearing, limiting section can press prevents paddle from pressing from both sides abjection on clutch shaft bearing, stop collar is provided in connecting rod, stop collar is arranged between second bearing and support base, and stability is high, connection is reliable, safe.
Description
Technical field
The utility model belongs to unmanned helicopter technical field, concretely relates to a kind of lifting airscrew head.
Background technology
Unmanned helicopter can also increase with the increase of loading capacity, the size of propeller, to improve taking off for helicopter
Loading capacity, then the problem of bringing, which is exactly propeller, just has unusual centrifugal force, existing rotor high-speed rotating when
Header structure cannot meet use demand.
The content of the invention
The purpose of this utility model is to provide a kind of lifting airscrew head, and stability is high, and connection is reliable, safe.
In order to solve the above technical problems, what the purpose of this utility model was realized in：
A kind of lifting airscrew head assembly including the main shaft being vertically arranged, is fixed with support base on main shaft, connecting rod is horizontal
It is symmetrical arranged and is connected with support base, paddle folder is symmetrical arranged and is rotatably coupled in connecting rod, it is characterised in that：It is described every
A connecting rod first end is provided with limiting section, and connecting rod second end is connected with support base, and receiving connection is provided in each paddle folder
The cavity of bar is provided with boss in the cavity, and boss both sides are provided with clutch shaft bearing and second bearing, and limiting section can press first axle
It holds and paddle is prevented to press from both sides abjection, be provided with stop collar in connecting rod, stop collar is arranged between second bearing and support base.
On the basis of said program and as the preferred embodiment of said program：The connecting rod second end and support base it
Between using jam nut connect, jam nut pass through extension bar second end connecting hole corresponding with support base.
On the basis of said program and as the preferred embodiment of said program：The clutch shaft bearing and second bearing position push away
Power bearing.
On the basis of said program and as the preferred embodiment of said program：The support base is split type setting, the
One support base and the second support base are symmetrical arranged, and the main shaft upper end symmetrically cuts out two card access surfaces, the first support base and second
Support base is connected by symmetrically arranged two locking devices with main shaft.
On the basis of said program and as the preferred embodiment of said program：Each locking device includes fastening spiral shell
Silk and clamping pin, fastening screw sequentially pass through the first support base, main shaft and the second support base, and the first support base and second are supported
Seat is pressed in card access surface, and clamping pin locks the corresponding location hole on the first support base, the second support base and main shaft.
On the basis of said program and as the preferred embodiment of said program：First support base, the second support base
On be provided with clamping pin cap fall prevention.
The utility model is prominent and beneficial compared with prior art to be had the technical effect that：The limiting section of connecting rod first end and company
Extension bar is that integral type is set, connecting rod first end and support base using lock screw be connected and support base and main shaft between
Connection mode so that the rotor head assembly stability is high, and connection is reliable, safe.
Description of the drawings
Fig. 1 is the overall structure shaft side figure of this rotor head assembly.
Fig. 2 is rotor head assembly front view
Fig. 3 is rotor head assembly plan view.
Fig. 4 is A-A sectional views.
Fig. 5 is B-B sectional views.
Specific embodiment
To make the purpose, technical scheme and advantage of the application clearer, below in conjunction with the attached drawing in embodiment, to reality
The technical solution applied in example is clearly and completely described, it is clear that described embodiment is only that the application part is implemented
Example rather than whole embodiments.Based on the embodiment provided, those of ordinary skill in the art are not before creative work is made
All other embodiments obtained are put, shall fall in the protection scope of this application.
In the description of the present application, it is to be understood that the orientation or position relationship of the instructions such as term " on ", " under " are base
In orientation shown in the drawings or position relationship, it is for only for ease of description the application and simplifies description rather than instruction or imply
Signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that this
The limitation of application.
In the description of the present application, term " first ", " second " etc. be only used for description purpose, and it is not intended that instruction or
Imply relative importance or the implicit quantity for indicating indicated technical characteristic.
A kind of lifting airscrew head assembly, including the main shaft 1 being vertically arranged, connecting plate 5 and supporting block 3 form support base,
Support base is connected with main shaft 1, and connecting plate 5 is arranged symmetrically, between 3 amount of being symmetricly set on connecting plate 5 of supporting block, 1 upper end of main shaft
Two card access surfaces 101 symmetrically are cut out, fastening screw 11 sequentially passes through connecting plate 5, main shaft 1, and connecting plate 5 is pressed on card access surface
On 101, clamping pin 12 is locked on 5 main shaft 1 of connecting plate in corresponding location hole.
Preferably, copper sheathing 13 is provided between fastening screw 11 and connecting plate 5.
Preferably, clamping column 111 is provided between connecting plate 5 and card access surface 101, clamping column 111 is symmetrical arranged, clamping column
111 tools are there are one big end, and big end is pressed in card access surface 101, and small end is fastened in 5 corresponding connecting hole of connecting plate.
Preferably, fastening screw 11 is provided with gasket 16 with 111 connecting portion of clamping column.
Preferably, the cap fall prevention 15 and the clamping portion 14 positioned for preventing that clamping pin 12 from deviating from are provided on connecting plate 5, is prevented
Capping 15 is connected with clamping portion 14 by screw and connecting plate 5.
Preferably, damping sets 17 are provided between clamping pin 12 and connecting plate 5.
Preferably, several auxiliary screws 18 are also set up between supporting block 3 and connection to fix, and increase its bonding strength.
4 horizontal symmetrical of connecting rod sets and is connected with supporting block 3, and paddle folder 2 is symmetrical arranged and is rotatably coupled to connect
On bar 4, each connecting rod first end 41 is provided with limiting section 43, and connecting rod second end 42 is connected with supporting block 3, each paddle folder 2
The cavity for accommodating connecting rod 4 is inside provided with, is provided with boss 22 in the cavity, 22 both sides of boss are provided with clutch shaft bearing 6 and the
Two bearings 7, limiting section 43, which can press, prevents paddle from pressing from both sides 2 abjections on clutch shaft bearing 6, the first stop collar 8, second is provided in connecting rod 4
Stop collar 9, the 3rd stop collar 10, first, second, third stop collar are arranged between second bearing 7 and supporting block 3.
It is connected between connecting rod second end 42 and supporting block 3 using jam nut 17, jam nut 17 passes through extension bar second
End connecting hole corresponding with support base.
Preferably, clutch shaft bearing 6 and second bearing 7 are thrust bearing.
Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this
It encloses, therefore：The equivalence changes that all structures, shape, principle according to the utility model are done, should all be covered by the protection of the utility model
Within the scope of.
Claims (7)
1. a kind of lifting airscrew head including the main shaft being vertically arranged, is fixed with support base on main shaft, connecting rod horizontal symmetrical is set
It puts and is connected with support base, paddle folder is symmetrical arranged and is rotatably coupled in connecting rod, it is characterised in that：Each connection
Bar first end is provided with limiting section, and connecting rod second end is connected with support base, and the sky for accommodating connecting rod is provided in each paddle folder
Chamber is provided with boss in the cavity, and boss both sides are provided with clutch shaft bearing and second bearing, and limiting section, which can be pressed on clutch shaft bearing, to be hindered
Only paddle folder is deviate from, and is provided with stop collar in connecting rod, stop collar is arranged between second bearing and support base.
2. a kind of lifting airscrew head according to claim 1, it is characterised in that：The connecting rod second end and support base
Between using jam nut connect, jam nut pass through extension bar second end connecting hole corresponding with support base.
3. a kind of lifting airscrew head according to claim 1, it is characterised in that：The clutch shaft bearing and second bearing position
Thrust bearing.
4. a kind of lifting airscrew head according to claim 1, it is characterised in that：The support base is split type setting,
First support base and the second support base are symmetrical arranged, and the main shaft upper end symmetrically cuts out two card access surfaces, the first support base and
Two support bases are connected by symmetrically arranged two locking devices with main shaft.
5. a kind of lifting airscrew head according to claim 3, it is characterised in that：Each locking device includes fastening
Screw and clamping pin, fastening screw sequentially pass through the first support base, main shaft and the second support base, by the first support base and second
Support seat is pressed in card access surface, and clamping pin locks the corresponding location hole on the first support base, the second support base and main shaft.
6. a kind of lifting airscrew head according to claim 5, it is characterised in that：Between the fastening screw and support base
Copper sheathing is provided with, damping sets are provided between clamping pin and support base.
7. a kind of lifting airscrew head according to claim 4, it is characterised in that：First support base, the second support
Clamping pin cap fall prevention is provided on seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721324432.3U CN207450248U (en) | 2017-10-16 | 2017-10-16 | A kind of lifting airscrew head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721324432.3U CN207450248U (en) | 2017-10-16 | 2017-10-16 | A kind of lifting airscrew head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207450248U true CN207450248U (en) | 2018-06-05 |
Family
ID=62252365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721324432.3U Active CN207450248U (en) | 2017-10-16 | 2017-10-16 | A kind of lifting airscrew head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207450248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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
- 2017-10-16 CN CN201721324432.3U patent/CN207450248U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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