CN2501803Y - Flexible adjustable pitch propeller - Google Patents
Flexible adjustable pitch propeller Download PDFInfo
- Publication number
- CN2501803Y CN2501803Y CN 01250676 CN01250676U CN2501803Y CN 2501803 Y CN2501803 Y CN 2501803Y CN 01250676 CN01250676 CN 01250676 CN 01250676 U CN01250676 U CN 01250676U CN 2501803 Y CN2501803 Y CN 2501803Y
- Authority
- CN
- China
- Prior art keywords
- pitch
- blade
- rotating shaft
- propeller
- setting device
- 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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Abstract
The utility model relates to an adjustable pitch propeller which is particularly suitable for middle and small ships. The structure is characterized in that the hub on the propeller shaft is provided with a plurality of blades rotatably supporting on the hub whose basic operating state depends on the direction of the ship within a limited rotational range and a pitch flexibility adjusting device is arranged at the root of the supporting leaf of the blades. The technique has the function of automatically adjusting the pitch of the blades so that the pitch can be matched with the engine power so as to achieve the effect of saving energy and improving efficiency. Furthermore, the utility model has the advantages of simple structure, low cost and remarkable effects.
Description
(1) technical field
The utility model relates to a kind of being used on hull, the especially middle-size and small-size hull, when it moves ahead serviceability for being mainly, its blade pitch can be adjusted according to the variation of ship's speed, thereby realize mating economically the pitch automatic adjustment technologies that pitch reaches effective utilization of machine power.
(2) background technology
There is attachment in ship because of itself, when travelling or carry out various Job Operations, or sea condition various situations such as changes when occurring, wish that its pitch can be able to automatically regulating and correction according to needed propelling thrust size, technical design personnel have designed the pitch of propeller changeable device, as Chinese patent disclosed 89100999, name is called " controllable pitch propeller " technology, this technology is to utilize permanent magnetic-electromagnetic actuating apparatus artificially so that the experimental record value is adjusted and fixed blades pitch as adjusting basis, in the hope of reaching " optimum matching " of blade pitch and main engine power.Though this technology is the screw propeller of adjustable even pitch, but in fact still be fixed blades formula screw propeller, need experienced operating personal just can really to adjust by approximate construction, the factor of its human intervention is very big, especially the whole complex structure of forming, difficulty of processing and manufacturing cost are all very high, are difficult to be applicable on the middle-size and small-size hull.Thereby from general, present technology does not also have a kind of adjustable pitch technology simple in structure and suitable, that be suitable for self adjusting at random to occur.
(3) summary of the invention
The present patent application technology mainly is that existing blade pitch adjustment technology is too complicated in order to solve, cost is too high, and its structure is difficult to be applicable to the actual techniques problem on the middle-size and small-size hull, a kind of flexible adjustable pitch propeller is provided, its propeller hub is fixedly mounted on the oar axle, some blade rotational support line direction before according to hull is that the basic operation state exists on the propeller hub of a limited slewing area, and the major technique of the technical program is characterised in that the support blade root place of blade is provided with the flexible setting device of pitch.
In technique scheme, the flexible setting device of pitch is wherein formed the rotating shaft that comprises with the support blade root place of blade, this rotary shaft body is provided with a stop bar that radially protrudes, this stop bar be provided with a spring that produces opposition with respect to blade load principal direction position.
In the described overall technical architecture, the another kind of embodiment of the flexible setting device of basic pitch can be the rotating shaft of locating with the support blade root of blade, and rotary shaft body is provided with a stop bar that radially protrudes, suit and the wind spring of an end stay hook in this rotating shaft in this rotating shaft.
In above-mentioned overall technical architecture, a class embodiment again of the flexible setting device of its pitch can be provided with the worm gear with worm mesh for the rotating shaft that the support blade root of blade is located, and the both ends or one end of worm screw are provided with the spring that produces opposition.
Invention technology of the present utility model is to change the fixing frame mode of blade of existing vessel screw propeller, what be provided with is when utilizing hull speed to change because of particular case, the application force that its water surface acts on blade load axis both sides changes, blade is rotated to the big side of opposition, thereby change the pitch of screw propeller, can be according to required different propelling thrust: reduce pitch when needing big propelling thrust, add coarse-pitch during little propelling thrust, and the autobrake location of realizing adjusted pitch by stop component, thereby realize and the optimum matching of driving engine main engine power, improve mechanical efficiency and oar and imitate.Because the technology with pitch adjusting mechanism has realized the purpose of blade for ship propellers pitch automatic and adjustable, and its structure reasonably simplified, make it to be ideally suited on the middle-size and small-size hull, reach the effect of best energy-conservation, synergy, can prolong the service life of driving engine effectively.
(4) description of drawings
Fig. 1 is vertical sectional structure chart of this flexible adjustable pitch propeller propeller hub
Fig. 2 is positioned at the cross sectional drawing of blade root rotating shaft stop bar for this flexible adjustable pitch propeller propeller hub
Fig. 3, Fig. 4 are respectively the enforcement structural representation of the flexible setting device of pitch at blade blade root place.
(5) specific embodiment
As shown in Figure 1, be fixedly mounted on the propeller hub 2 on the oar axle, the root normal-running fit of blade 11 is connected in the mounting hole of its blade, and by locating dowel pin 3 radial locations, the flexible setting device of the pitch at blade blade root place is that the rotating shaft at blade root place is provided with a radial stop bar 4, the opposite side of stop bar 4, be that blade automatically acts on the opposite side that the opposition of blade master load surface axis both sides varies in size and rotates to the big side of load according to the variation because of hull speed, be provided with the spring 8 that produces antagonistic force, and the size of regulating its braking force by jackscrew 5, the top of its oar axle is provided with hub and adjusts seat 6 and end cap 7.
The another kind of embodiment of the flexible setting device of the pitch in the present technique as shown in Figure 3, the rotating shaft of its blade is arranged in the mounting hole of propeller hub 2, rotating shaft is provided with one section or one and encloses the worm gear 12 that cooperates with worm screw, its worm screw 9 be arranged at the propeller hub mounting hole shrinkage pool 10 in, the worm screw two ends that are positioned at shrinkage pool 10 are provided with the spring 8B that plugging rotates in blade, rotating shaft radially be provided with a stop bar.The flexible setting device of pitch also can have other embodiment, as shown in Figure 4 be to utilize a wind spring 8C of suit in the rotating shaft to realize the rolling brake of blade, but preferably also directly upwards be provided with a braking radius stay in its rotating shaft, cooperate and realize pitch value the fixation final or limit at it.
Claims (4)
1, a kind of flexible adjustable pitch propeller, its propeller hub (2) is fixedly mounted on the oar axle, some blades (11) rotational support line direction in before according to hull be the basic operation state have a limited slewing area propeller hub (2) on, it is characterized in that the support blade root place of blade is provided with the flexible setting device of pitch.
2, screw propeller according to claim 1, it is characterized in that of the rotating shaft of the flexible setting device of pitch for locating with the support blade root of blade (11), this rotary shaft body is provided with a stop bar (4) that radially protrudes, this stop bar be provided with a spring (8) that produces opposition with respect to blade load principal direction position.
3, screw propeller according to claim 1, it is characterized in that of the rotating shaft of the flexible setting device of pitch for locating with the support blade root of blade (11), rotary shaft body is provided with a stop bar that radially protrudes, suit and the wind spring (8C) of an end stay hook in this rotating shaft in this rotating shaft.
4, screw propeller according to claim 1, it is characterized in that the flexible setting device of pitch is that the rotating shaft at the support blade root place of blade (11) is provided with and has and worm screw (9) ingear worm gear (12), the both ends or one end of worm screw (9) are provided with the spring (8B) that produces opposition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250676 CN2501803Y (en) | 2001-09-11 | 2001-09-11 | Flexible adjustable pitch propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250676 CN2501803Y (en) | 2001-09-11 | 2001-09-11 | Flexible adjustable pitch propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2501803Y true CN2501803Y (en) | 2002-07-24 |
Family
ID=33660775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01250676 Expired - Fee Related CN2501803Y (en) | 2001-09-11 | 2001-09-11 | Flexible adjustable pitch propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2501803Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102050219A (en) * | 2010-12-29 | 2011-05-11 | 广州中船龙穴造船有限公司 | Controllable pitch propeller for ship |
| CN102686477A (en) * | 2009-09-08 | 2012-09-19 | 汉堡-哈尔堡技术大学 | Mechanically driven, hubless, high-efficiency ship propulsor |
| CN103228532A (en) * | 2010-07-15 | 2013-07-31 | 麦克斯普罗普有限公司 | Feathering propeller with blade dampening at forward and backward motion and blades pitch control during backward motion |
| CN105035292A (en) * | 2015-07-24 | 2015-11-11 | 苏州金业船用机械厂 | Large-ship-used propeller with pitch adjustable |
| CN105984573A (en) * | 2015-02-15 | 2016-10-05 | 朱经纬 | Rotating device capable of changing blade-paddle angles |
| CN112520003A (en) * | 2020-11-30 | 2021-03-19 | 浙江海洋大学 | Unmanned ship propulsion device |
-
2001
- 2001-09-11 CN CN 01250676 patent/CN2501803Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102686477A (en) * | 2009-09-08 | 2012-09-19 | 汉堡-哈尔堡技术大学 | Mechanically driven, hubless, high-efficiency ship propulsor |
| CN102686477B (en) * | 2009-09-08 | 2016-02-17 | 汉堡-哈尔堡技术大学 | Mechanically operated without the efficient ship propeller of hub |
| CN103228532A (en) * | 2010-07-15 | 2013-07-31 | 麦克斯普罗普有限公司 | Feathering propeller with blade dampening at forward and backward motion and blades pitch control during backward motion |
| CN102050219A (en) * | 2010-12-29 | 2011-05-11 | 广州中船龙穴造船有限公司 | Controllable pitch propeller for ship |
| CN105984573A (en) * | 2015-02-15 | 2016-10-05 | 朱经纬 | Rotating device capable of changing blade-paddle angles |
| CN105984573B (en) * | 2015-02-15 | 2018-11-27 | 朱经纬 | A kind of rotating device that can change leaf propeller angle |
| CN105035292A (en) * | 2015-07-24 | 2015-11-11 | 苏州金业船用机械厂 | Large-ship-used propeller with pitch adjustable |
| CN112520003A (en) * | 2020-11-30 | 2021-03-19 | 浙江海洋大学 | Unmanned ship propulsion device |
| CN112520003B (en) * | 2020-11-30 | 2021-12-21 | 浙江海洋大学 | Unmanned ship propulsion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |