CN202175188U - Symmetric five blade type adjustable propeller hub - Google Patents
Symmetric five blade type adjustable propeller hub Download PDFInfo
- Publication number
- CN202175188U CN202175188U CN2011202401802U CN201120240180U CN202175188U CN 202175188 U CN202175188 U CN 202175188U CN 2011202401802 U CN2011202401802 U CN 2011202401802U CN 201120240180 U CN201120240180 U CN 201120240180U CN 202175188 U CN202175188 U CN 202175188U
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- saddle
- wall
- propeller hub
- guide frame
- blade
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Abstract
The utility model relates to a symmetric five blade type adjustable propeller hub, which comprises a hub, five blade sealing packs, sliders, a guide frame and a propeller shaft. The hub comprises an oil cylinder and a hub body, the oil cylinder is provided with an inner flange type structure, the rear end of the hub body is connected with the propeller shaft by the aid of a flange screw, the guide frame, the blade sealing packs and the sliders are arranged in the hub, the front portion of the guide frame is supported on the outer wall of the oil cylinder, the rear portion of the guide frame is supported on the outer ring of a journal of the propeller shaft, the inside of the guide frame is divided into a front cavity and a rear cavity by a partition, a front chamber is formed between the front cavity of the guide frame and the inner wall of the inner flange type structure in the oil cylinder, and a rear chamber is formed between the rear cavity of the guide frame and the end of the journal of the propeller shaft. The outer wall of the guide frame is in a square pentagon structure, each surface of the outer wall of the guide frame is provided with a slide groove, the sliders are disposed in the slider grooves, the five blade sealing packs correspond to the surfaces of the outer wall of the guide frame respectively and provided with pins respectively, and by the aid of the sliders in the slide grooves, the guide frame drives the pins on the blade sealing packs to drive the blade sealing packs to change the angle of blades of the propeller.
Description
Technical field
The utility model relates to a kind of propeller hub of symmetrical five leaf oars, belongs to the adjustable oar propulsion system of high thrust and high performance airscrew.
Background technology
Traditional propeller is the oar paddy of starching face small inclination symmetry quatrefoil formula greatly, and advantage is that focusing surface is big, and the resistance of start is little, and rotating speed improves fast, and acceleration is good.Shortcoming is that noise is big, and the timeliness rate of navigating by water at a high speed is low, and backing time is long; These all are the rotating speed decisions, and four leaves slurry wants to guarantee the output of engine power efficient, just must improve revolution; And rotating speed is brought up to a certain degree, can in water, form the local depression gasification, causes the generation of bubble; Quite a few power is wasted like this, and noise also can fetch water because of high revolution and high-frequency and produce, and needs time enough to make the screw propeller reduction of speed in the time of reversing simultaneously.In the oar paddy of symmetrical quatrefoil formula, along with the increasing of blade tilt, the water yield of singly passing on can strengthen, and the advantage of this moment is that equal power output can reduce revolution, and shortcoming is that the resistance of start strengthens.
In the existing propeller hub, general piston and saddle adopt separation type, and the piston bolt up is at the left end of saddle, and pressure oil promotes piston, drives saddle straight-line motion together then.This mechanism, often the face area of thrust surface of piston are less, want to obtain bigger power through piston, can only improve the pressure of hydraulic efficiency pressure system, and like this, the utmost point has caused the leakage of system, has reduced the reliability of hydraulic efficiency pressure system.In addition, the tie bolt between piston and the saddle will bear very big power in work, it is had higher requirement of strength, if problem just repairs very difficulty.
In the existing propeller hub, existing oil circuit is generally single vitta structure, is characterized in advancing/vent line with the endoporus double as work of stern tube shaft.Such structure not only makes the cleanliness level of hydraulic oil guarantee, and is easy to generate leakage, and the total system reliability is reduced.
The utility model content
The purpose of the utility model is: to the traditional limitation of symmetry four leaf paddle structures on thrust and rotating speed; The face area of thrust surface of the piston of separation type and saddle piston are less, the higher reliability decrease that causes of operating oil pressure; And oil circuit adopts a series of problems such as the cleanliness level of single vitta structure hydraulic oil can't guarantee, a kind of novel ship propeller hub is provided.
The purpose of the utility model is achieved in that the adjustable oar paddy of a kind of symmetrical five leaf oars, comprises propeller hub, blade packing, slide block, saddle, stern tube shaft, it is characterized in that:
A) propeller hub comprises cylinder body and propeller hub body, and cylinder body is connected with propeller hub body front end, is provided with the inward flange structure in the cylinder body, and the rear end of propeller hub body is connected with stern tube shaft through flange screw;
B) be provided with saddle, blade packing, slide block in the propeller hub;
C) front support of saddle inward flange structure outer wall in cylinder body, and with inward flange structure outer wall sliding block joint, the back support of saddle on stern tube shaft axle journal cylindrical, and with stern tube shaft axle journal cylindrical sliding block joint; The saddle inner route clapboard is divided into ante-chamber and back cavity, forms front chamber between the inwall of inward flange formula structure in the ante-chamber of saddle and the cylinder body, forms rear chamber between the back cavity of saddle and the stern tube shaft axle journal end;
D) the saddle outer wall is positive five cube structures; Be equipped with a chute on each face of saddle outer wall; Slide block places chute, five blade packings respectively with the corresponding setting of each face of saddle outer wall, the blade packing is provided with pin; Saddle drives the pin on the blade packing through the slide block in the chute, and the drive vane packing changes the angle of blade.
In the utility model: be provided with inner oil tube and outer oil pipe in the described stern tube shaft, wherein, inner oil tube and front chamber's communication, outer oil pipe and rear chamber's communication.
In the utility model: be provided with the sealing of O type circle in saddle front portion and the cylinder body between the outer wall of inward flange formula structure, be provided with the sealing of O type circle between saddle rear portion and the stern tube shaft axle journal cylindrical.
In the utility model: described propeller hub is a copper casting.
The advantage of the utility model is: owing to used the propeller hub structure of symmetrical five leaf oars and the cage structure of five side's bodies, can improve the thrust of screw propeller well; Saddle and piston adopt integral structure, and the dividing plate in the middle of the saddle forms front chamber between the inwall of inward flange structure as the purposes of piston in the ante-chamber of saddle and the cylinder body; Form rear chamber between the back cavity of saddle and the stern tube shaft axle journal end; The front end axis body of stern tube shaft and saddle rear inside wall sliding block joint form rear chamber between the dividing plate of stern tube shaft end face and saddle inwall, structure is very compact; Area of thrust surface have been increased; Reduce the system pressure requirement, improved the safe reliability of system, and reduced part count; Because outer oil pipe of the employing in the stern tube shaft and inner oil tube, the hydraulic oil in the work in the propeller hub is in recurrent state all the time, compares with single vitta structure, and the cleanliness level of hydraulic oil is higher.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is an A-A cross-sectional schematic among Fig. 1.
Part among the figure: 1, cylinder body, 2, blade, 3, the blade packing, 4, the propeller hub body, 5, saddle, 6, stern tube shaft, 7, front chamber, 8, rear chamber, 9, slide block, 10, inner oil tube, 11, outer oil pipe, 12, the sealing of O type circle.
The specific embodiment
Accompanying drawing discloses the concrete structure of the utility model without limitation, below in conjunction with accompanying drawing the utility model is done further to describe.
Visible by Fig. 1 Fig. 2; Comprise propeller hub, blade packing 3, slide block 9, saddle 5, stern tube shaft 6, wherein: propeller hub comprises cylinder body 1 and propeller hub body 4, and cylinder body 1 is connected with propeller hub body 4 front ends; Be provided with the inward flange structure in the cylinder body 1, the rear end of propeller hub body 4 is connected with stern tube shaft 6 through flange screw; Be provided with saddle 5, blade packing 3 and slide block 9 in the propeller hub; The front support of saddle 5 is inward flange formula structure outer wall in cylinder body 1, and with inward flange structure outer wall sliding block joint, the back support of saddle 5 on stern tube shaft axle journal cylindrical, and with stern tube shaft axle journal cylindrical sliding block joint; Saddle 5 inner route clapboards are divided into ante-chamber and back cavity, form front chamber 7 in the ante-chamber of saddle 5 and the cylinder body 1 between the inwall of inward flange formula structure, form rear chamber 8 between the back cavity of saddle 5 and the stern tube shaft axle journal end; Saddle 5 outer walls are positive five cube structures; Be equipped with a chute on each face of saddle 5 outer walls; Slide block 9 places chute, five blade packings 3 respectively with the corresponding setting of each face of saddle 5 outer walls, blade packing 3 is provided with pin; The pin that saddle 5 drives on the blade packing 3 through the slide block in the chute 9, drive vane packing 3 changes the angle of blade 2.
In the present embodiment, be provided with inner oil tube 10 and outer oil pipe 11 in the stern tube shaft 6, wherein, inner oil tube 10 is linked up with front chamber 7, and outer oil pipe 11 is linked up with rear chamber 8.
In the present embodiment, be provided with O type circle sealing 12 between the outer wall of inward flange formula structure in saddle 5 front portions and the cylinder body 1, be provided with O type circle sealing 12 between saddle 5 rear portions and the stern tube shaft axle journal cylindrical.
During practical implementation, described propeller hub is a copper casting.
During use, saddle 5 is to work like this: when hydraulic oil got into rear chamber 8 through outer oil pipe 11, saddle 5 was to left movement, and the hydraulic oil of front chamber 7 returns through inner oil tube 10 circulations; When hydraulic oil gets into front chamber 7 through inner oil tube 10, promote saddle 5 and move right, the hydraulic oil of rear chamber 7 returns through outer oil pipe 11 circulations.When saddle 5 moving linearlies, the chute driving sliding block of saddle 5 outer walls is slided in chute, forms a crank pin mechanism by the pin three on chute, slide block 9 and the blade packing 3 of saddle 5, drives blade packing 3 and rotates.Because blade 2 fixedlys connected with blade packing 3, the rotation of blade packing 3 has just changed the angle of blade 2, realizes the rotation roll adjustment of blade, and is as broad as long about the oar paddy of the process of saddle 5 driving blades 2 and traditional symmetrical quatrefoil formula.
Claims (4)
1. the adjustable oar paddy of symmetry five leaf oars comprises propeller hub, blade packing, slide block, saddle, stern tube shaft, it is characterized in that:
A) propeller hub comprises cylinder body and propeller hub body, and cylinder body is connected with propeller hub body front end, is provided with the inward flange structure in the cylinder body, and the rear end of propeller hub body is connected with stern tube shaft through flange screw;
B) be provided with saddle, blade packing, slide block in the propeller hub;
C) front support of saddle inward flange formula structure outer wall in cylinder body, and with inward flange structure outer wall sliding block joint, the back support of saddle on stern tube shaft axle journal cylindrical, and with stern tube shaft axle journal cylindrical sliding block joint; The saddle inner route clapboard is divided into ante-chamber and back cavity, forms front chamber between the inwall of inward flange structure in the ante-chamber of saddle and the cylinder body, forms rear chamber between the back cavity of saddle and the stern tube shaft axle journal end;
D) the saddle outer wall is positive five cube structures; Be equipped with a chute on each face of saddle outer wall; Slide block places chute, five blade packings respectively with the corresponding setting of each face of saddle outer wall, the blade packing is provided with pin; Saddle drives the pin on the blade packing through the slide block in the chute, and the drive vane packing changes the angle of blade.
2. the adjustable oar paddy of symmetrical five leaf oars according to claim 1 is characterized in that: be provided with inner oil tube and outer oil pipe in the described stern tube shaft, wherein, inner oil tube and front chamber are linked up, and outer oil pipe and rear chamber are linked up.
3. the adjustable oar paddy of symmetrical five leaf oars according to claim 1 is characterized in that: be provided with the sealing of O type circle in saddle front portion and the cylinder body between the outer wall of inward flange formula structure, be provided with the sealing of O type circle between saddle rear portion and the stern tube shaft axle journal cylindrical.
4. according to claim 1 or the adjustable oar paddy of 2 or 3 described symmetrical five leaf oars, it is characterized in that: described propeller hub is a copper casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202401802U CN202175188U (en) | 2011-07-08 | 2011-07-08 | Symmetric five blade type adjustable propeller hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202401802U CN202175188U (en) | 2011-07-08 | 2011-07-08 | Symmetric five blade type adjustable propeller hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202175188U true CN202175188U (en) | 2012-03-28 |
Family
ID=45865087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202401802U Expired - Lifetime CN202175188U (en) | 2011-07-08 | 2011-07-08 | Symmetric five blade type adjustable propeller hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202175188U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795324A (en) * | 2012-08-24 | 2012-11-28 | 杭州前进齿轮箱集团股份有限公司 | Feathering propeller hub structure applied to ship propulsion |
| CN108357658A (en) * | 2018-01-30 | 2018-08-03 | 苏州船用动力系统股份有限公司 | A kind of propeller pitch adjusting structure |
| CN109649617A (en) * | 2018-12-14 | 2019-04-19 | 南京高精船用设备有限公司 | A kind of novel propeller propeller hub |
| CN110316344A (en) * | 2019-07-09 | 2019-10-11 | 南京高精船用设备有限公司 | A kind of adjustable propeller whirlpool fin that disappears |
-
2011
- 2011-07-08 CN CN2011202401802U patent/CN202175188U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795324A (en) * | 2012-08-24 | 2012-11-28 | 杭州前进齿轮箱集团股份有限公司 | Feathering propeller hub structure applied to ship propulsion |
| CN108357658A (en) * | 2018-01-30 | 2018-08-03 | 苏州船用动力系统股份有限公司 | A kind of propeller pitch adjusting structure |
| CN109649617A (en) * | 2018-12-14 | 2019-04-19 | 南京高精船用设备有限公司 | A kind of novel propeller propeller hub |
| CN110316344A (en) * | 2019-07-09 | 2019-10-11 | 南京高精船用设备有限公司 | A kind of adjustable propeller whirlpool fin that disappears |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120328 |
|
| CX01 | Expiry of patent term |