CN201198369Y - Adjustable propeller with novel oil pressure structure - Google Patents
Adjustable propeller with novel oil pressure structure Download PDFInfo
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- CN201198369Y CN201198369Y CNU2008200345666U CN200820034566U CN201198369Y CN 201198369 Y CN201198369 Y CN 201198369Y CN U2008200345666 U CNU2008200345666 U CN U2008200345666U CN 200820034566 U CN200820034566 U CN 200820034566U CN 201198369 Y CN201198369 Y CN 201198369Y
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- 239000003921 oil Substances 0.000 claims abstract description 161
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 8
- 238000012856 packing Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 230000001746 atrial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model proposes an adjustable airscrew of a novel hydraulic structure, which comprises an oil cylinder consisting of an oil cavity A and an oil cavity B, a piston, a propeller hub, an oar, a vane sole, a guide frame, a stern shaft, an oil dividing sleeve, a hydraulic-controlled check valve, an oil tube and an oil distributor. The utility model is characterized in that the oil cavity A of the oil cylinder is an oil cavity at the advancing side; the oil cavity B is an oil cavity at the back-running side; a bypass oil hole and a penetrated central oil hole are arranged on the oil dividing sleeve; the advancing hydraulic oil at the center of the oil tube after passing through the hydraulic-controlled check valve is communicated with the oil cavity at the advancing side through the central oil hole of the oil dividing sleeve; the oil cavity at the back-running side in the outer layer of the oil tube is communicated with the oil cavity at the back-running side through the bypass oil hole of the oil dividing sleeve. The adjustable airscrew of a novel hydraulic structure has the advantages that: the oil cylinder A at the left side of the oil cylinder is arranged to be the oil cylinder at the advancing side, thus being capable of reducing the working oil pressure needed by adjusting and locking the thread pitch of the adjustable airscrew, reducing the design intensity to the oil cylinder and connecting bolts to lead the size of the adjustable airscrew to be better and lead the structure to be compacter; being capable of reducing the risk of leakage as well as improving the reliability of a hydraulic system.
Description
Affiliated technical field
The utility model relates to a kind of boats and ships and promotes mainly into screw propeller, especially a kind of controllable pitch propeller of novel oil pressure structure.
Background technology
Controllable pitch propeller can the adjustable screw oar pitch, change pitch and not only can change shipping sail speed, and in case of emergency realize the ahead and astern of boats and ships.In the existing controllable pitch propeller, generally be that the right side part that positive car side cylinder is arranged on oil cylinder is the B chamber, the left part that the reversing side cylinder is arranged on oil cylinder is A chamber (shown in Figure 2 as Fig. 1).Positive car pressure oil enters oil cylinder 1 positive car side B oil pocket from the bypass oilhole of oil pipe 10 on hydraulic control one-way valve 9 and branch oil jacket 8, and the reversing pressure oil divides the outer ring oilhole on the oil jacket 8 to enter oil cylinder 1 reversing side A oil pocket from the skin of oil pipe 10.Therefore, when carrying out the operation of positive car (and changing blade angle), positive car pressure oil is from the bypass oilhole of oil pipe 10 on hydraulic control one-way valve 9 and branch oil jacket 8, enter oil cylinder 1 positive car side B oil pocket, outer ring oilhole on the pressure oil content oil jacket 8 of the side of moveing backward simultaneously flows back to fuel tank when car backing operation (otherwise then) from the oil pipe outside, this process will form difference of pressure in piston 2 both sides, promote piston 2 and move, thereby drive the work of screw propeller rotating vane mechanism.When blade (4) rotates to the angle of setting, hydraulic closure system, oil pipe one end bonded assembly hydraulic control one-way valve 9 restriction pressure oils flow out, and keep piston 2 pressure at both sides stable, thereby make blade 4 relative propeller hubs 3 maintenances static.During ship's navigation, whole propeller is ceaselessly rotated along the stern tube shaft axis, thereby produces huge thrust.Propeller thrust finally acts on the piston 2 by rotating vane mechanism, and direction is opposite with positive car oil pressure.During for the rotation of assurance screw propeller, the relative rotation of blade 4 and propeller hub 3 is constant, and the pressure that acts on the piston left side must add that the counter-force on the saddle keeps balance with right atrial pressure.The working oil pressure of therefore positive car side cylinder is much larger than the pressure of reversing side cylinder.In addition, the boats and ships overwhelming majority time is in positive car navigation, and the pressure of the positive car side of oil cylinder is the design reference pressure of whole power system.Because in the oil cylinder of right side, the saddle axle has taken segment space, the corresponding minimizing of the area of thrust surface on the piston for obtaining identical pressure, must improve the pressure of positive car side power fluid.After pressure improved, not only the intensity to corresponding part proposed higher requirement, and increased the risk of hydraulic system leakage.
Summary of the invention
The purpose of this utility model is: the area of thrust surface of the positive car side B oil pocket that exists at present controllable pitch propeller are little with respect to the area of thrust surface of reversing side A oil pocket, and the pressure that must improve the hydraulic oil of positive car side B oil pocket could guarantee that blade 4 and propeller hub 3 relative rotation when car just is constant.And after the pressure raising, not only the intensity to corresponding part proposes higher requirement, and increases a series of problems such as risk of hydraulic system leakage, and a kind of controllable pitch propeller of novel oil pressure structure is provided.
The purpose of this utility model is achieved in that a kind of controllable pitch propeller of novel oil pressure structure, comprise and contain A, the oil cylinder of B oil pocket, piston, propeller hub, blade, the blade packing, saddle, stern tube shaft, divide oil jacket, hydraulic control one-way valve, oil pipe, oil distributor, it is characterized in that: the A oil pocket of oil cylinder is positive car side oil pocket, the B oil pocket is reversing side oil pocket, described minute oil jacket is provided with the center oilhole of bypass oilhole and perforation, the positive car hydraulic oil in the center of oil pipe is through being linked up with positive car side oil pocket by the center oilhole of minute oil jacket behind the hydraulic control one-way valve, and the skin reversing hydraulic oil of oil pipe is linked up with reversing side oil pocket by the bypass oilhole of minute oil jacket.
Advantage of the present utility model is: oil cylinder left side A oil pocket is set to positive car side oil pocket, during the positive car of controllable pitch propeller, pressure oil in the hydraulic efficiency pressure system enters oil pipe from the oil inlet of oil distributor, enter piston left side A oil pocket through hydraulic control one-way valve and branch oil jacket, because A oil pocket piston compression area is big, therefore can produce bigger thrust down with equipressure.Like this, just can reduce the required working oil pressure of pitch of regulating and locking controllable pitch propeller.
Of the present utility model being also advantageous in that: therefore the reduction of working oil pressure can make the size of controllable pitch propeller littler, more compact structure to reducing the design strength of oil cylinder and fastening bolt.Working oil pressure reduces the risk that can also reduce leakage, improves the reliability of hydraulic efficiency pressure system.
Description of drawings
The scheme drawing of the existing controllable pitch propeller oil channel structures of Fig. 1;
Fig. 2 is the local enlarged diagram in the adjustment position of existing controllable pitch propeller oil channel structures;
Fig. 3 is the local enlarged diagram in adjustment of the present utility model position.
Among the figure: 1, oil cylinder, 2, piston, 3, propeller hub, 4, blade, 5, the blade packing, 6, saddle, 7, stern tube shaft, 8, divide oil jacket, 9, hydraulic control one-way valve, 10, oil pipe, 11, oil distributor.
The specific embodiment
Fig. 3 discloses the concrete structure of the utility model embodiment without limitation, below in conjunction with accompanying drawing the utility model is described in further detail:
The utility model is the same with existing controllable pitch propeller, comprise oil cylinder 1, piston 2 in its working oil path, divide oil jacket 8, hydraulic control one-way valve 9, oil pipe 10 and oil distributor 11, wherein, oil distributor 11 positive car oil outlets are connected with oil pipe 10 center oilholes, the outer oil circuit of reversing oil outlet and oil pipe 10 is linked up, and oil pipe 10 left ends are provided with one and branch oil jacket 8 connection hydraulic control one-way valves 9.Divide oil jacket 8 and saddle 6 to be fixed together, and design there are two groups of turnover oilholes to communicate with A oil pocket, the B oil pocket of oil cylinder 1 respectively.As seen from Figure 2, their difference is: the A oil pocket of oil cylinder 1 is positive car side oil pocket, the B oil pocket is reversing side oil pocket, described minute oil jacket 8 is provided with the center oilhole of bypass oilhole and perforation, the positive car hydraulic oil in the center of oil pipe 10 is through behind the hydraulic control one-way valve 9, center oilhole by minute oil jacket 8 is linked up with positive car side A oil pocket, and the skin reversing hydraulic oil of oil pipe 10 is linked up with reversing side B oil pocket by the bypass oilhole of minute oil jacket 8.
When controllable pitch propeller carried out positive car, the hydraulic power system pressure oil output entered the positive car hydraulic fluid port B of oil distributor 8, entered the center oilhole of oil pipe 10 through oil distributor 11.Hydraulic control one-way valve 9 is opened under the effect of pressure oil, and the oilhole by minute oil jacket 8 enters the A oil pocket.Simultaneously unnecessary pressure oil flows out from the bypass oilhole of minute oil jacket 8 in the B oil pocket, flows into oil distributor 11 along oil pipe 10 skins from stern tube shaft 7 endoporus, and flows back to the hydraulic power system fuel tank from oil distributor 11 delivery port A.The pressure oil one-in-and-one-out promotes piston 2 and moves, and makes the work of rotating vane mechanism, and blade is rotated to the angle of setting.
This oil channel structures not only satisfies the unimpeded of two-way pressure oil circuit, and improves the reliability of hydraulic efficiency pressure system, reduces the risk of leaking.
Claims (1)
1. the controllable pitch propeller of a novel oil pressure structure, comprise and contain A, the oil cylinder of B oil pocket, piston, propeller hub, blade, the blade packing, saddle, stern tube shaft, divide oil jacket, hydraulic control one-way valve, oil pipe, oil distributor, it is characterized in that: the A oil pocket of oil cylinder is positive car side oil pocket, the B oil pocket is reversing side oil pocket, described minute oil jacket is provided with the center oilhole of bypass oilhole and perforation, the positive car hydraulic oil in the center of oil pipe is through being linked up with positive car side oil pocket by the center oilhole of minute oil jacket behind the hydraulic control one-way valve, and the skin reversing hydraulic oil of oil pipe is linked up with reversing side oil pocket by the bypass oilhole of minute oil jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200345666U CN201198369Y (en) | 2008-04-30 | 2008-04-30 | Adjustable propeller with novel oil pressure structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200345666U CN201198369Y (en) | 2008-04-30 | 2008-04-30 | Adjustable propeller with novel oil pressure structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201198369Y true CN201198369Y (en) | 2009-02-25 |
Family
ID=40449527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200345666U Expired - Fee Related CN201198369Y (en) | 2008-04-30 | 2008-04-30 | Adjustable propeller with novel oil pressure structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201198369Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180251A (en) * | 2011-04-28 | 2011-09-14 | 杭州前进齿轮箱集团股份有限公司 | Adjustable propeller hub for ship thruster |
| CN103228933A (en) * | 2010-09-27 | 2013-07-31 | 斯奈克玛 | Hydraulic device of control device, such as blade pitch-change device |
| CN104816809A (en) * | 2014-02-03 | 2015-08-05 | 姚元恺 | Adjusting mechanism for hydraulic wheel gear and wheel rack auxiliary blade |
| CN105545861A (en) * | 2016-01-27 | 2016-05-04 | 苏州船用动力系统股份有限公司 | Front-located two-way lockup valve device used for stabilizing pitch of marine controllable pitch propeller and method for front-located two-way lockup valve device |
| CN107600378A (en) * | 2017-07-28 | 2018-01-19 | 武汉船用机械有限责任公司 | A kind of pitch measurement device for tuning for Controllable Pitch Propeller |
-
2008
- 2008-04-30 CN CNU2008200345666U patent/CN201198369Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103228933A (en) * | 2010-09-27 | 2013-07-31 | 斯奈克玛 | Hydraulic device of control device, such as blade pitch-change device |
| CN103228933B (en) * | 2010-09-27 | 2016-04-20 | 斯奈克玛 | A hydraulic device for a control device such as a blade pitch changing device |
| CN102180251A (en) * | 2011-04-28 | 2011-09-14 | 杭州前进齿轮箱集团股份有限公司 | Adjustable propeller hub for ship thruster |
| CN102180251B (en) * | 2011-04-28 | 2014-02-12 | 杭州前进齿轮箱集团股份有限公司 | Adjustable propeller hub for ship thruster |
| CN104816809A (en) * | 2014-02-03 | 2015-08-05 | 姚元恺 | Adjusting mechanism for hydraulic wheel gear and wheel rack auxiliary blade |
| CN105545861A (en) * | 2016-01-27 | 2016-05-04 | 苏州船用动力系统股份有限公司 | Front-located two-way lockup valve device used for stabilizing pitch of marine controllable pitch propeller and method for front-located two-way lockup valve device |
| CN107600378A (en) * | 2017-07-28 | 2018-01-19 | 武汉船用机械有限责任公司 | A kind of pitch measurement device for tuning for Controllable Pitch Propeller |
| CN107600378B (en) * | 2017-07-28 | 2019-09-20 | 武汉船用机械有限责任公司 | A pitch measuring device for pitch control propeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090225 Termination date: 20160430 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |