CN108357658A - A kind of propeller pitch adjusting structure - Google Patents
A kind of propeller pitch adjusting structure Download PDFInfo
- Publication number
- CN108357658A CN108357658A CN201810090012.6A CN201810090012A CN108357658A CN 108357658 A CN108357658 A CN 108357658A CN 201810090012 A CN201810090012 A CN 201810090012A CN 108357658 A CN108357658 A CN 108357658A
- Authority
- CN
- China
- Prior art keywords
- propeller
- piston rod
- blade
- propeller hub
- hub
- 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
- 238000009434 installation Methods 0.000 claims abstract description 7
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 4
- 239000000446 fuel Substances 0.000 abstract description 2
- 230000001141 propulsive effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003739 neck Anatomy 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
- B63H3/081—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft
Abstract
A kind of propeller pitch adjusting structure of the present invention, including oil cylinder cover, propeller hub, piston rod, blade and sliding block；Propeller hub is the propeller hub that section is in regular polygon；The end cap of the positive installation oil cylinder of propeller hub；Matching hole is equipped at the axle center of propeller hub；The front end of the piston rod is inserted into matching hole, piston head is installed on the front end of piston rod, and piston head is matched in chamber of the propeller hub between oil cylinder cover；Blade is installed between two neighboring hub bone on propeller hub；The blade root of blade coordinates on the rear end radial surface of the piston rod indirectly；Homoaxial T-slot is offered on the radial surface of piston rod rear end；It is set with crank disc on the blade root of blade；It is set with sliding block on crank-pin on crank disc；The sliding block is matched in T-slot.The propeller pitch adjusting structure can reduce the vibration between propeller and diesel engine, greatly improve the service life of diesel engine and propeller；The disk ratio that propeller can be improved improves the propulsive efficiency of propeller, saves ship's navigation fuel.
Description
Technical field
The present invention relates to field of ship equipment, more particularly to a kind of propeller pitch adjusting structure.
Background technology
Propeller hub is the position that each blade installation combines, and is located at rotor tip, mostly circular cone or truncated cone-shaped and stern tube shaft is mutual
It fits, a keyway is opened at binding face, edge is that stern tube shaft drives propeller rotation with key.The roll adjustment spiral shell peculiar to vessel of the overwhelming majority at present
Revolve paddle using four-blade propeller roll adjustment technology, as shown in Figure 3.It is even number cylinder work to drive the diesel engine overwhelming majority of propeller
Operation mode, it is easy to resonate with four-blade propeller, generate larger vibrating noise, substantially reduce diesel engine and propeller
Service life；In addition, in the case of other conditions are identical, four-blade propeller is lower than the disk ratio of five vane propellers, propulsive efficiency also compared with
It is low.
Invention content
The invention mainly solves the technical problem of providing a kind of propeller pitch adjusting structures, effectively solve four leaf tuning for Controllable Pitch Propeller and hold
The problem of easily resonating.
In order to solve the above technical problems, one aspect of the present invention is to provide a kind of propeller pitch adjusting structure,
Including oil cylinder cover, propeller hub, piston rod, blade and sliding block；Propeller hub is the propeller hub that section is in regular polygon；The front installation oil of propeller hub
Cylinder cap；Matching hole is equipped at the axle center of propeller hub；The front end of the piston rod is inserted into matching hole, is installed on the front end of piston rod
Piston head, and piston head is matched in chamber of the propeller hub between oil cylinder cover；Paddle is installed between two neighboring hub bone on propeller hub
Leaf；The blade root of blade coordinates on the rear end radial surface of the piston rod indirectly；It is opened on the radial surface of piston rod rear end
Equipped with homoaxial T-slot；It is set with crank disc on the blade root of blade；It is set with sliding block on crank-pin on crank disc；The cunning
Block is matched in T-slot.
Preferably, the front end of the piston rod is cylindrical body, is matched in the matching hole in propeller hub axle center, piston
The surface of revolution of bar front end is equipped with fixing nut；The fixing nut locks piston head on the piston rod.
Preferably, the rear end of the piston rod is the regular polygon corresponding to propeller hub, each of which radial surface corresponds to
One blade is installed.
Preferably, the oil cylinder cover is bolted on the propeller hub.
The beneficial effects of the invention are as follows：A kind of propeller pitch adjusting structure is provided, can be reduced between propeller and diesel engine
Vibration, greatly improve the service life of diesel engine and propeller；The disk ratio that propeller can be improved improves the propulsion effect of propeller
Rate saves ship's navigation fuel.
Description of the drawings
Fig. 1 is a kind of front section view of propeller pitch adjusting structure of the present invention；
Fig. 2 is the side sectional view of propeller pitch adjusting structure；
Fig. 3 is the front section view of four-blade propeller pitch adjusting structure；
The label of each component is as follows in attached drawing：1, blade；2, crank disc；3, crank-pin；4, sliding block；5, piston rod；6, propeller hub；7、
Piston head；8, oil cylinder cover.
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 3 is please referred to, the embodiment of the present invention includes：
A kind of propeller pitch adjusting structure, including oil cylinder cover 8, propeller hub 6, piston rod 5, blade 1 and sliding block 4；Propeller hub 6 is regular polygon
Propeller hub, select five leaf propeller hubs in the present embodiment.The positive installation oil cylinder lid 8 of propeller hub 6, oil cylinder cover 8 are bolted on paddle
On hub 6, matching hole is equipped at the axle center of propeller hub 6.The front end of piston rod is cylindrical body, is matched with matching for 6 axle center of propeller hub
It closes in hole.Piston head 7 is installed, and piston head 7 is matched in chamber of the propeller hub 6 between oil cylinder cover 8 on the front end of piston rod.
The surface of revolution of piston rod front end is equipped with fixing nut, and fixing nut locks piston head 7 on the piston rod.On propeller hub 6
Blade is installed, the blade root of blade 1 coordinates on the rear end radial surface of piston rod indirectly between two neighboring hub bone.Piston rod
Rear end is pentagonal prism ontology, each of which radial surface corresponds to one blade 1 of installation.It is opened on the radial surface of piston rod rear end
Equipped with homoaxial T-slot, it is set with crank disc 2 on the blade root of blade 1, sliding block 4 is set on the crank-pin 3 on crank disc 2, it is sliding
Block 4 is matched in T-slot.Sliding block 4 slides in T-slot, forms slider-crank mechanism.
The blade 1 of adjustable pitch propeller uses assembling structure, blade 1 to be fixed on crank disc 2, can surround with propeller hub 6
The axis of blade 1 rotates.When propeller realizes roll adjustment, there is pressure difference in oil inlet pipe oil inlet, oil cylinder, and piston head is pushed to move in an axial direction
Dynamic, piston rod connected to it moves axially therewith, and piston rod drives the crank disc pin in piston rod slot to drive crank disc rotation,
To realize that propeller blade is rotated along axis, the screw pitch of propeller is adjusted, the thrust of propeller is changed.
In order to realize the roll adjustment of five vane propellers, the cross sectional shape of tuning for Controllable Pitch Propeller piston rod need to be only designed as by regular quadrangle
Regular pentagon, and open and take corresponding sliding slot, as illustrated in fig. 1 and 2, the propeller hub of pairing need to be redesigned, with piston in oil cylinder
It is mobile, drive the rotation of propeller blade, you can realize the blade roll adjustment of five vane propellers.
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 (4)
1. a kind of propeller pitch adjusting structure, it is characterised in that：Including oil cylinder cover, piston rod, propeller hub, blade and sliding block；Propeller hub is
Section is in the propeller hub of regular polygon；The positive installation oil cylinder lid of propeller hub；Matching hole is equipped at the axle center of propeller hub；The piston rod
Front end is inserted into matching hole, piston head is installed on the front end of piston rod, and piston head is matched with propeller hub between oil cylinder cover
In chamber；Blade is installed between two neighboring hub bone on propeller hub；The blade root of blade coordinates in the rear end of the piston rod indirectly
On radial surface；Homoaxial T-slot is offered on the radial surface of piston rod rear end；It is set with crank on the blade root of blade
Disk；It is set with sliding block on crank-pin on crank disc；The sliding block is matched in T-slot.
2. a kind of propeller pitch adjusting structure according to claim 1, it is characterised in that：The front end of the piston rod is cylinder
Shape ontology is matched in the matching hole in propeller hub axle center, and the surface of revolution of piston rod front end is equipped with fixing nut；The fixation
Nut locks piston head on the piston rod.
3. a kind of propeller pitch adjusting structure according to claim 1 or 2, it is characterised in that：The rear end of the piston rod is
Corresponding to the regular polygon of propeller hub, each of which radial surface corresponds to one blade of installation.
4. a kind of propeller pitch adjusting structure according to claim 3, it is characterised in that：The oil cylinder cover is bolted
On the propeller hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810090012.6A CN108357658A (en) | 2018-01-30 | 2018-01-30 | A kind of propeller pitch adjusting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810090012.6A CN108357658A (en) | 2018-01-30 | 2018-01-30 | A kind of propeller pitch adjusting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108357658A true CN108357658A (en) | 2018-08-03 |
Family
ID=63007688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810090012.6A Pending CN108357658A (en) | 2018-01-30 | 2018-01-30 | A kind of propeller pitch adjusting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108357658A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310153A (en) * | 2021-11-11 | 2022-04-12 | 武汉船用机械有限责任公司 | Machining method of adjustable pitch propeller crank disc |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB945310A (en) * | 1960-09-24 | 1963-12-23 | Slack & Parr Marine Ltd | Improvements in or relating to variable pitch marine screw propellers |
| GB984126A (en) * | 1961-10-26 | 1965-02-24 | Nils Johannes Liaaen | Servo-mechanism for variable pitch propellers |
| US4142834A (en) * | 1977-06-03 | 1979-03-06 | Arne Feroy | Adjustment means for achieving equal crankpin loading in a controllable pitch propeller mechanism |
| CN102358411A (en) * | 2011-09-02 | 2012-02-22 | 杭州前进齿轮箱集团股份有限公司 | Integral structure type propeller hub for ship |
| CN202175188U (en) * | 2011-07-08 | 2012-03-28 | 南京高精船用设备有限公司 | Symmetric five blade type adjustable propeller hub |
| CN202400277U (en) * | 2011-12-22 | 2012-08-29 | 浙江汉力士船用推进系统股份有限公司 | Full-circle adjustable thread pitch thruster |
| 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 |
| CN208134589U (en) * | 2018-01-30 | 2018-11-23 | 苏州船用动力系统股份有限公司 | A kind of propeller pitch adjusting structure |
-
2018
- 2018-01-30 CN CN201810090012.6A patent/CN108357658A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB945310A (en) * | 1960-09-24 | 1963-12-23 | Slack & Parr Marine Ltd | Improvements in or relating to variable pitch marine screw propellers |
| GB984126A (en) * | 1961-10-26 | 1965-02-24 | Nils Johannes Liaaen | Servo-mechanism for variable pitch propellers |
| US3171494A (en) * | 1961-10-26 | 1965-03-02 | Liaaen Nils Johannes | Servo mechanism for controllable pitch propellers |
| US4142834A (en) * | 1977-06-03 | 1979-03-06 | Arne Feroy | Adjustment means for achieving equal crankpin loading in a controllable pitch propeller mechanism |
| CN202175188U (en) * | 2011-07-08 | 2012-03-28 | 南京高精船用设备有限公司 | Symmetric five blade type adjustable propeller hub |
| CN102358411A (en) * | 2011-09-02 | 2012-02-22 | 杭州前进齿轮箱集团股份有限公司 | Integral structure type propeller hub for ship |
| CN202400277U (en) * | 2011-12-22 | 2012-08-29 | 浙江汉力士船用推进系统股份有限公司 | Full-circle adjustable thread pitch thruster |
| 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 |
| CN208134589U (en) * | 2018-01-30 | 2018-11-23 | 苏州船用动力系统股份有限公司 | A kind of propeller pitch adjusting structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310153A (en) * | 2021-11-11 | 2022-04-12 | 武汉船用机械有限责任公司 | Machining method of adjustable pitch propeller crank disc |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| 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. |