CN108382555A - A kind of crank-linkage type propeller blade pitch adjusting structure - Google Patents
A kind of crank-linkage type propeller blade pitch adjusting structure Download PDFInfo
- Publication number
- CN108382555A CN108382555A CN201810217427.5A CN201810217427A CN108382555A CN 108382555 A CN108382555 A CN 108382555A CN 201810217427 A CN201810217427 A CN 201810217427A CN 108382555 A CN108382555 A CN 108382555A
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- Prior art keywords
- crank
- blade
- disc
- piston
- piston rod
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- 230000033001 locomotion Effects 0.000 claims abstract description 11
- 238000000338 in vitro Methods 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims description 4
- 210000003734 kidney Anatomy 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H3/00—Propeller-blade pitch changing
- B63H3/06—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical
- B63H3/08—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
- B63H1/14—Propellers
- B63H1/26—Blades
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The present invention relates to a kind of crank-linkage type propeller blade pitch adjusting structures, including propeller hub body, blade, piston rod, terminal pad, crank disc, slider disc and connecting rod；Propeller hub is equipped with roll adjustment cylinder block in vitro；The front end of piston rod passes through in propeller hub body to roll adjustment cylinder block；The front end of piston rod is equipped with piston, and piston coordinates with roll adjustment cylinder block；The rear end of piston rod is coaxial docking with paddle shaft；Coaxial package is gone back on the rear end of piston rod the slider disc；Multiple blades are combined on the rotary surface of propeller hub body；It is sequentially coaxially set with terminal pad and crank disc on the root of each blade；Blade, terminal pad, crank disc are by blade root bolt come fixation of connecting；Each crank disc is connected to the slider disc by a connecting rod；One end of connecting rod is fixed by screws on the side of slider disc, and the other end is connected in the eccentric end of crank side surface；Piston rod drives slider disc linear motion, connecting rod to push terminal pad rotation；Terminal pad drives blade to rotate synchronously with crank disc.
Description
Technical field
The present invention relates to marine propeller fields, more particularly to a kind of crank-linkage type propeller blade pitch adjusting structure.
Background technology
Propeller for vessels blade variation pitch mostly uses crank block slider structure, sliding block to be produced by face and face fricting movement at present
Raw displacement, the transmission efficiency of power is relatively low when roll adjustment, and roll adjustment action sensitivity is relatively poor.In addition, processing of the structure to sliding block
It is more demanding, it generally requires manually to repair shovel to sliding block progress, so that itself and piston rod is met cooperation and require, ensure flexible operation, it is right
The skill set requirements of skilled worker are higher.
Such as Chinese utility model patent《Lateral thrust adjustable propeller》, application number is 201120103541.9, describes biography
Inner oil tube is set in moving axis, and inner oil tube one end is connected with oil distributor, and the inner oil tube other end is connected with in-oil cylinder piston, interior oil
Housing saddle in the middle part of pipe, saddle are provided with sliding slot, there is sliding block in sliding slot, and for slide block set on crank-pin, crank-pin is connected to crank disc
Bottom, sliding block, crank-pin and sliding slot flexible connection are fixedly connected with blade on crank disc.Above structure realizes blade screw pitch
Angle regulation technology realizes the conversion of linear motion and axial rotation by the cooperation of sliding block and sliding slot.But due to structure
Limitation, which can generate deformation in the long-term use.Especially blade driving torque is unstable, it is easy to make
Structural damage.Simultaneously as the limitation of sliding slot setting, the rotational angle of blade are also restricted.
Invention content
The invention mainly solves the technical problem of providing a kind of crank-linkage type propeller blade pitch adjusting structures, solve
The transmission efficiency problem of driving force when blade roll adjustment.
In order to solve the above technical problems, one aspect of the present invention is to provide a kind of crank-linkage type propeller
Blade pitch adjusting structure, including propeller hub body, blade, piston rod, terminal pad, crank disc, slider disc and connecting rod；Propeller hub is equipped with adjusts in vitro
Away from cylinder block；The front end of piston rod passes through in propeller hub body to roll adjustment cylinder block；The front end of piston rod is equipped with piston, and piston
Coordinate with roll adjustment cylinder block；The rear end of piston rod is coaxial docking with paddle shaft；Gone back on the rear end of piston rod coaxial package have it is described
Slider disc；It is combined with multiple blades on the rotary surface of the propeller hub body；It is sequentially coaxially set on the root of each blade
Terminal pad and crank disc；Blade, terminal pad, crank disc are by blade root bolt come fixation of connecting；Each crank disc passes through one
Connecting rod is connected to the slider disc；One end of connecting rod is fixed by screws on the side of slider disc, and the other end is connected to song
In the eccentric end of handle side surface；Piston rod drives slider disc linear motion, connecting rod to push terminal pad rotation；Terminal pad and crank disc
Blade is driven to rotate synchronously.
Preferably, it is further sleeved with piston loop bar on the piston rod；Piston rod is matched with propeller hub body by piston loop bar
On；Piston is located at two end sides of piston loop bar with slider disc.
Preferably, the blade includes at least 2；It is equipped on the rotary surface of propeller hub body multiple for assembling blade
Mounting hole；The root of blade is assemblied in by terminal pad sealing in mounting hole.
Preferably, the junction of the slider disc and connecting rod is fixed by bearing, axis pin and the screw；Bearing
It is set on axis pin, bearing is installed on connecting rod, and the screw passes through the centre bore of axis pin to be fixed in slider disc.
Preferably, the slider disc is cube structure, and four arm of angle lateral locations have centrosymmetric kidney-shaped logical
Hole, connecting rod are inserted into installation in waist through hole and fix, and kidney slot side is equipped with the circular hole for installing the axis pin.
The beneficial effects of the invention are as follows：A kind of crank-linkage type propeller blade pitch adjusting structure is provided, with prior art phase
It is had the following advantages than it：
1, the transmission efficiency of power is higher when roll adjustment, and roll adjustment action is sensitiveer, and roll adjustment angle not will receive the limitation of structure.
2, the transmission of structure is more stablized, and the machining accuracy in structure preparation process is easily guaranteed that, can reduce skill
The skill set requirements of art worker.
Description of the drawings
Fig. 1 is this one piece blade brace and connecting rod framework normal axomometric drawing；
Fig. 2 is propeller hub body component；
Fig. 3 is propeller hub body cross section；
Fig. 4 is the action schematic diagram of one piece blade crank connecting link；
Fig. 5 is one piece blade brace and connecting rod framework motion principle figure；
The label of each component is as follows in attached drawing：1, blade root bolt；2, crank disc；3, terminal pad；4, blade；5, propeller hub body；6, it adjusts
Away from cylinder block；7, piston；8, piston loop bar；9, piston rod；10, slider disc；11, connecting rod；12, bearing；13, axis pin；14, spiral shell
Nail；15, paddle shaft.
Specific implementation mode
The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Attached drawing 1 to 5 is please referred to, the embodiment of the present invention includes：
A kind of crank-linkage type propeller blade pitch adjusting structure, including propeller hub body 5, blade 4, piston rod 9, terminal pad 3, crank disc
2, slider disc 10 and connecting rod 11.Propeller hub body 5 is externally provided with roll adjustment cylinder block 6, and the front end of piston rod 9 passes through propeller hub body 5 to roll adjustment
In cylinder block 6.The front end of piston rod 9 is equipped with piston 7, and piston 7 coordinates with roll adjustment cylinder block 6.7 left side of piston is nothing
Rod cavity, 7 right side of piston is then rod chamber.
The rear end of piston rod 9 is coaxial docking with paddle shaft 15 is connect, and coaxial sleeve is gone back on the rear end of piston rod 9, slider disc 10 is housed.
Piston loop bar 8 is further sleeved on piston rod 9, piston rod 9 is matched with by piston loop bar 8 on propeller hub body 5, piston 7 and slider disc
10 are located at two end sides of piston loop bar 8.
It is combined with multiple blades 4 on the rotary surface of propeller hub body 5, is sequentially coaxially set on the root of each blade 4
Terminal pad 3 and crank disc 2.Blade includes at least 2, is equipped on the rotary surface of propeller hub body 5 multiple for assembling blade 4
The root of mounting hole, blade 4 is assemblied in by the sealing of terminal pad 3 in mounting hole.Blade 4, terminal pad 3, crank disc 2 pass through blade root
Bolt 1 is connected to slider disc 10 come fixation of connecting, each crank disc 2 by a connecting rod 11.One end of connecting rod 11 passes through spiral shell
Nail 14 is fixed on the side of slider disc 10, and the other end is connected in the eccentric end of 2 end face of crank disc.Piston rod 9, which drives, to be slided
Moving plate 10 move along a straight line, connecting rod 11 push 3 rotation of terminal pad, terminal pad 3 then with crank disc 2 drive paddle 4 rotate synchronously to
Adjust thread pitch.
Slider disc 10 and the junction of connecting rod 11 are fixed by bearing 12, axis pin 13 and screw 14.Bearing 12 is set with
In on axis pin 13, bearing 12 is installed on connecting rod 11, and screw 14 passes through the centre bore of axis pin 13 to be fixed in slider disc 10.Sliding
Disk 10 is cube structure, and four arm of angle lateral locations have centrosymmetric waist through hole, connecting rod 11 to be inserted into waist through hole
Installation is fixed, and kidney slot side is equipped with the circular hole of installation axis pin 13.
As shown in Figure 2 and Figure 3, the power-conversion of adjustable pitch airscrew blade screw pitch variation adjustment and executing agency are propeller hub bodies
Component.Propeller hub body plays the role of support, connection blade, paddle shaft, transmits power, propeller blade distance adjustor is in propeller hub body
Toggle, toggle mainly have piston rod 9, slider disc 10, connecting rod 11, bearing 12, axis pin 13, crank disc 2
Equal parts composition.
The high pressure oil that hydraulic control system provides enters the rodless cavity or rod chamber of roll adjustment cylinder block.When high pressure oil enters
Rodless cavity pushes piston 7 and slider disc 10 to move in a straight line to the right together, and bearing 12, the connecting rod 11 being connect with slider disc 10 start
Rotation, while connecting rod 11 drives crank disc 2 to rotate.Crank disc 2, terminal pad 3, blade 4 are connected by blade root bolt 1, blade 4
It is rotated together with crank disc 2.The linear motion of piston 7 is converted to the rotary motion of blade 4 by this process, to change propeller
The angle of pitch of blade, to absorb the corresponding power that host inputs under corresponding operating mode.
When high pressure oil enters rod chamber and piston 7 and slider disc 10 is pushed to move downward move in a straight line together, with sliding
Bearing 12, the connecting rod 11 of the connection of disk 10 start negative direction rotation, while connecting rod 11 drives the rotation of 2 negative direction of crank disc.4 He of blade
Also negative direction rotates crank disc 2 together.The linear motion of piston 7 is converted to the rotary motion of blade 4 by this process, to negative side
To the angle of pitch for changing propeller blade.
Monolithic propeller blade crank and connecting rod movement schematic diagram as shown in Figure 4 and Figure 5, show piston rod 7 with
When slider disc 10 moves, slider disc 10 drives connecting rod 11 to move, and connecting rod 11 drives crank disc 2 to rotate, and drives blade 4 together therewith
The purpose of propeller blade roll adjustment is realized in rotation.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (5)
1. a kind of crank-linkage type propeller blade pitch adjusting structure, it is characterised in that：Including propeller hub body, blade, piston rod, connection
Disk, crank disc, slider disc and connecting rod；Propeller hub is equipped with roll adjustment cylinder block in vitro；The front end of piston rod passes through propeller hub body to roll adjustment
In cylinder block；The front end of piston rod is equipped with piston, and piston coordinates with roll adjustment cylinder block；The rear end of piston rod and paddle shaft are same
Axis docks；Coaxial package is gone back on the rear end of piston rod the slider disc；It is combined on the rotary surface of the propeller hub body more
A blade；It is sequentially coaxially set with terminal pad and crank disc on the root of each blade；Blade, terminal pad, crank disc pass through leaf
Root bolt is come fixation of connecting；Each crank disc is connected to the slider disc by a connecting rod；One end of connecting rod passes through screw
It is fixed on the side of slider disc, the other end is connected in the eccentric end of crank side surface；Piston rod drives slider disc straight line
Movement, connecting rod push terminal pad rotation；Terminal pad drives blade to rotate synchronously with crank disc.
2. a kind of crank-linkage type propeller blade pitch adjusting structure according to claim 1, it is characterised in that：The piston
Piston loop bar is further sleeved on bar；Piston rod is matched with by piston loop bar on propeller hub body；Piston is located at work with slider disc
Two end sides of plug sleeve bar.
3. a kind of crank-linkage type propeller blade pitch adjusting structure according to claim 1 or 2, it is characterised in that：It is described
Blade includes at least 2；Multiple mounting holes for assembling blade are equipped on the rotary surface of propeller hub body；The root of blade is logical
The terminal pad sealing is crossed to be assemblied in mounting hole.
4. a kind of crank-linkage type propeller blade pitch adjusting structure according to claim 3, it is characterised in that：The sliding
The junction of disk and connecting rod is fixed by bearing, axis pin and the screw；For bearing holder (housing, cover) loaded on axis pin, bearing is installed on company
On bar, the screw passes through the centre bore of axis pin to be fixed in slider disc.
5. a kind of crank-linkage type propeller blade pitch adjusting structure according to claim 4, it is characterised in that：The sliding
Disk is cube structure, and four arm of angle lateral locations have centrosymmetric waist through hole, connecting rod to be inserted into installation in waist through hole
Fixed, kidney slot side is equipped with the circular hole for installing the axis pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810217427.5A CN108382555A (en) | 2018-03-16 | 2018-03-16 | A kind of crank-linkage type propeller blade pitch adjusting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810217427.5A CN108382555A (en) | 2018-03-16 | 2018-03-16 | A kind of crank-linkage type propeller blade pitch adjusting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108382555A true CN108382555A (en) | 2018-08-10 |
Family
ID=63066541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810217427.5A Pending CN108382555A (en) | 2018-03-16 | 2018-03-16 | A kind of crank-linkage type propeller blade pitch adjusting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108382555A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702355A (en) * | 2019-09-29 | 2020-01-17 | 中国航空工业集团公司西安飞机设计研究所 | Propeller model with adjustable blades for wind tunnel test |
| CN112591064A (en) * | 2020-12-22 | 2021-04-02 | 中国船舶重工集团公司第七0三研究所 | Variable pitch actuating mechanism for marine controllable pitch propeller |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB823526A (en) * | 1954-12-02 | 1959-11-11 | Slack & Parr Marine Ltd | Improvements in or relating to hubs for variable pitch marine screw propellers |
| DE3105484A1 (en) * | 1981-02-14 | 1982-09-02 | Ivan Lukič Alekseev | Control system for the airscrew (propeller) of a turboprop propulsion system |
| US4678402A (en) * | 1984-09-07 | 1987-07-07 | Roe Homer D | Variable pitch propeller |
| KR101501903B1 (en) * | 2014-11-28 | 2015-03-12 | 주식회사 신라금속 | Hub assembly for controllable pitch propeller |
| CN106628080A (en) * | 2017-01-16 | 2017-05-10 | 苏州船用动力系统股份有限公司 | Device for displacement of paddle |
| CN206734594U (en) * | 2017-01-16 | 2017-12-12 | 苏州船用动力系统股份有限公司 | A kind of blade displacement device |
| CN208134590U (en) * | 2018-03-16 | 2018-11-23 | 苏州船用动力系统股份有限公司 | A kind of crank-linkage type propeller blade pitch adjusting structure |
-
2018
- 2018-03-16 CN CN201810217427.5A patent/CN108382555A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB823526A (en) * | 1954-12-02 | 1959-11-11 | Slack & Parr Marine Ltd | Improvements in or relating to hubs for variable pitch marine screw propellers |
| DE3105484A1 (en) * | 1981-02-14 | 1982-09-02 | Ivan Lukič Alekseev | Control system for the airscrew (propeller) of a turboprop propulsion system |
| US4678402A (en) * | 1984-09-07 | 1987-07-07 | Roe Homer D | Variable pitch propeller |
| KR101501903B1 (en) * | 2014-11-28 | 2015-03-12 | 주식회사 신라금속 | Hub assembly for controllable pitch propeller |
| CN106628080A (en) * | 2017-01-16 | 2017-05-10 | 苏州船用动力系统股份有限公司 | Device for displacement of paddle |
| CN206734594U (en) * | 2017-01-16 | 2017-12-12 | 苏州船用动力系统股份有限公司 | A kind of blade displacement device |
| CN208134590U (en) * | 2018-03-16 | 2018-11-23 | 苏州船用动力系统股份有限公司 | A kind of crank-linkage type propeller blade pitch adjusting structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702355A (en) * | 2019-09-29 | 2020-01-17 | 中国航空工业集团公司西安飞机设计研究所 | Propeller model with adjustable blades for wind tunnel test |
| CN112591064A (en) * | 2020-12-22 | 2021-04-02 | 中国船舶重工集团公司第七0三研究所 | Variable pitch actuating mechanism for marine controllable pitch propeller |
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| CB02 | Change of applicant information |
Address after: 215000 No.16 Runsheng Road, Shengpu Town, Suzhou Industrial Park, Jiangsu Province Applicant after: Jiangsu Xinhang Ship Technology Co.,Ltd. Address before: 215000 No.16 Runsheng Road, Shengpu Town, Suzhou Industrial Park, Jiangsu Province Applicant before: SMMC MARINE DRIVE SYSTEMS (SUZHOU) Co.,Ltd. |
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