CN109334933A - The bidirectional locking arrangement of controllable pitch propeller of low hydraulic shock - Google Patents
The bidirectional locking arrangement of controllable pitch propeller of low hydraulic shock Download PDFInfo
- Publication number
- CN109334933A CN109334933A CN201811365737.8A CN201811365737A CN109334933A CN 109334933 A CN109334933 A CN 109334933A CN 201811365737 A CN201811365737 A CN 201811365737A CN 109334933 A CN109334933 A CN 109334933A
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- Prior art keywords
- plug screw
- cone valve
- valve
- pitch propeller
- valve body
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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
- 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
- B63H2003/088—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid characterised by supply of fluid actuating medium to control element, e.g. of hydraulic fluid to actuator co-rotating with the propeller
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention relates to a kind of bidirectional locking arrangement of controllable pitch propeller of low hydraulic shock, valve body both ends are respectively fixedly connected with stern plug screw, end cap, bow plug screw is fixedly connected in end cap, two off-load cone valves are separately mounted in valve body hole and in end cap, and respectively by spring and stern plug screw and bow plug screw elastic connection, two off-load cone valve fronts are cooperatively connected with valve body inner bore sealing surface respectively；Off-load cone valve positioned at stern plug screw is connected to the intracorporal chamber A of valve, and the off-load cone valve positioned at end cap is connected to the intracorporal chamber B of valve；Control piston can be free to move axially in being mounted among valve body hole, and control piston two sides are respectively communicated with oil circuit A, B.The device of the invention unloading function in tuning for Controllable Pitch Propeller roll adjustment does not work, and only unloading function works when surely away from operating condition, therefore does not influence the maximum working pressure of tuning for Controllable Pitch Propeller.By reducing pressure unloading setting value, oil circuit oil pressure is reduced, so that hydraulic shock when reducing reversed roll adjustment, improves the working performance and service life of tuning for Controllable Pitch Propeller.
Description
Technical field
The present invention relates to a kind of ship power propulsion device, especially a kind of bidirectional locking arrangement of controllable pitch propeller.
Background technique
In order to keep the position of the tuning for Controllable Pitch Propeller blade angle of pitch when surely away from operating condition, improve it is steady away from performance during navigation,
Bidirectional locking arrangement is usually set in tuning for Controllable Pitch Propeller.The working principle of bidirectional locking arrangement is kept respectively using two check valves
Tuning for Controllable Pitch Propeller just, reversing oil circuit pressure, have pressure holding function.If tuning for Controllable Pitch Propeller encounters abnormal external applied load, tuning for Controllable Pitch Propeller in operation
The oil pressure of internal oil passages can due to bidirectional locking arrangement pressure holding function and become larger, in order to protect roll adjustment oar system, generally locking
Unloading valve is set on locking apparatus.Currently, tuning for Controllable Pitch Propeller product mainly uses the installation plug-in unloading valve outside locking system (to unload outside
Lotus type locking system) structure type.Outer unloading type locking system off-load when oil circuit pressure is greater than the set value, this setting value is not
Less than roll adjustment oar system maximum working pressure.Tuning for Controllable Pitch Propeller reaches stop position in debugging process sometimes, at this time in oil circuit
Pressure reaches maximum working pressure, often since high pressure generates larger hydraulic shock when reversed roll adjustment.Therefore, it is necessary to a kind of new
Locking system be not only able to achieve surely away from function, but also can be reduced hydraulic shock.
Summary of the invention
To solve the problems, such as that current bidirectional locking arrangement of controllable pitch propeller hydraulic shock is big, the present invention proposes that one kind does not influence roll adjustment
While pressure reduce surely away from when oil circuit pressure low hydraulic shock bidirectional locking arrangement of controllable pitch propeller, to reduce hydraulic shock,
Improve the working performance and service life of pitch propeller device.Compared to previous locking system, structure of the invention is more compact, and installation is more
It is convenient.
To achieve the above object, the technical scheme is that a kind of bidirectional locking arrangement of controllable pitch propeller of low hydraulic shock,
Including stern plug screw, off-load cone valve, control piston, valve body, end cap, bow plug screw, the valve body both ends be respectively fixedly connected with stern plug screw,
End cap is fixedly connected with bow plug screw in end cap, and two off-load cone valves are separately mounted in valve body hole and in end cap, and pass through bullet respectively
Spring and stern plug screw and bow plug screw elastic connection, two off-load cone valve fronts are cooperatively connected with valve body inner bore sealing surface respectively；It is located at
The off-load cone valve of stern plug screw is connected to the intracorporal chamber A of valve, and the off-load cone valve positioned at end cap is connected to the intracorporal chamber B of valve；The control
Piston processed can be free to move axially, the control piston two sides are respectively communicated with oil circuit A, B in being mounted among valve body hole.
Further, the pressure unloading setting value of described two off-load cone valves is lower than tuning for Controllable Pitch Propeller maximum working pressure.
Further, the off-load cone valve includes plug screw with holes, spring, small cone valve, cone valve；Plug screw with holes by screw thread with
Cone valve one end is fastenedly connected, and small cone valve is mounted in cone valve body opening, and passes through spring and plug screw elastic connection with holes；The cone
Radial damping hole is provided on valve body；Axial damping hole is had on the plug screw with holes and cone valve；The small cone valve and cone
The sealing surface of axial damping hole on valve body is cooperatively connected
The beneficial effects of the present invention are:
The bidirectional locking arrangement of low hydraulic shock proposed by the present invention unloading function in tuning for Controllable Pitch Propeller roll adjustment does not work, only
Unloading function works when surely away from operating condition, therefore does not influence the maximum working pressure of tuning for Controllable Pitch Propeller.It is set by reducing pressure unloading
Definite value reduces oil circuit oil pressure, so that hydraulic shock when reducing reversed roll adjustment, improves the working performance of tuning for Controllable Pitch Propeller and use the longevity
Life.Meanwhile compared to previous locking system, structure of the invention is more compact, and installation is more convenient.
Detailed description of the invention
Fig. 1 is the bidirectional locking arrangement of controllable pitch propeller structure sectional view of low hydraulic shock of the invention
Fig. 2 is the cross-sectional view of bowing of Fig. 1；
Fig. 3 is the structure enlargement diagram of stern bow off-load cone valve in Fig. 1
In figure, 1. stern plug screws, 2. stern springs, 3. stern off-load cone valves, 3a. plug screw with holes, 3b. spring, the small cone valve of 3c., 3d.
Cone valve, 4. control pistons, 5. valve bodies, 6. bow off-load cone valves, 7. bow springs, 8. end caps, 9. screws, 10. bow plug screws.
Specific embodiment
The invention will be further described with embodiment with reference to the accompanying drawing.
As depicted in figs. 1 and 2, the bidirectional locking arrangement of controllable pitch propeller of low hydraulic shock of the invention carries interior unloading function,
The device includes stern plug screw 1, stern spring 2, stern off-load cone valve 3, control piston 4, valve body 5, bow off-load cone valve 6, bow spring 7, end
Lid 8, screw 9 and bow plug screw 10.5 one end of valve body connects stern plug screw 1 by screw threads for fastening, and the other end is fastenedly connected by screw 9
End cap 8, end cap 8 connect bow plug screw 10 by screw threads for fastening, and stern off-load cone valve 3 is mounted in 5 hole of valve body, by stern spring 2 with
1 elastic connection of stern plug screw.Bow off-load cone valve 6 is mounted in 8 hole of end cap, passes through bow spring 7 and 10 elastic connection of bow plug screw.Stern unloads
Lotus cone valve 3 and 6 front of bow off-load cone valve are cooperatively connected with 5 inner hole sealing surface of valve body respectively；In stern off-load cone valve 3 and valve body 5
Chamber A20 connection, bow off-load cone valve 6 are connected to the chamber B21 in valve body 5.It, can be axial in control piston 4 is mounted among 5 hole of valve body
It moves freely, control 4 two sides of piston are respectively communicated with oil circuit A, B.5 one end of valve body is fastened by double tube before screw 9 and tuning for Controllable Pitch Propeller
Connection, the other end and oil distributor cover clearance fit with oil seal.The setting of the pressure unloading of stern off-load cone valve 3 and bow off-load cone valve 6
Value is lower than tuning for Controllable Pitch Propeller maximum working pressure.
As shown in figure 3, stern off-load cone valve 3 includes plug screw 3a with holes, spring 3b, small cone valve 3c, cone valve 3d.Plug screw with holes
3a is fastenedly connected by screw thread and the one end cone valve 3d, and small cone valve 3c is mounted in the hole cone valve 3d, and passes through spring 3b and band
Hole plug screw 3a elastic connection.Radial damping hole 3e is provided on cone valve 3d.Axis is had on plug screw 3a and cone valve 3d with holes
To damping hole 3f.The sealing surface of axial damping hole 3f on small cone valve 3c and cone valve 3d is cooperatively connected
The structure of bow off-load cone valve 6 is identical with the structure of stern off-load cone valve 3.
By taking tuning for Controllable Pitch Propeller moves backward roll adjustment as an example, hydraulic oil matches the oil circuit A oil inlet that oil seal covers from oil distributor, opens stern off-load cone
Valve 3, hydraulic oil enter chamber A；Hydraulic oil pushes control piston 4 simultaneously, opens bow off-load cone valve, and hydraulic oil enters from chamber B oil return
Oil circuit B forms roll adjustment circuit.Tuning for Controllable Pitch Propeller surely away from when, stern off-load cone valve 3 and bow off-load cone valve 6 are closed, small cone valve 3c closure,
Chamber A and chamber B is in state of pressure keeping.When chamber A or chamber B pressure increase suddenly and are more than the pressure set points of stern bow off-load cone valve,
Small cone valve 3c is opened, hydraulic oil off-load to oil circuit A or B, to guarantee the pressure of chamber A or B within setting value.This programme can
Guarantee tuning for Controllable Pitch Propeller maximum working pressure in roll adjustment operating condition, and lower pressure in tuning for Controllable Pitch Propeller oil circuit can be kept when surely away from operating condition,
Reduce hydraulic shock when reversed roll adjustment.
Claims (3)
1. a kind of bidirectional locking arrangement of controllable pitch propeller of low hydraulic shock, including stern plug screw (1), off-load cone valve, control piston (4),
Valve body (5), end cap (8), bow plug screw (10), it is characterised in that: valve body (5) both ends are respectively fixedly connected with stern plug screw (1), end
It covers (8), is fixedly connected bow plug screw (10) in the end cap (8), two off-load cone valves are separately mounted in valve body (5) hole and end cap
(8) in, and respectively by spring and stern plug screw (1) and bow plug screw (10) elastic connection, two off-load cone valve fronts respectively with valve
Body (5) inner hole sealing surface is cooperatively connected；Off-load cone valve positioned at stern plug screw (1) is connected to the chamber A in valve body (5), is located at end cap
(8) off-load cone valve is connected to the chamber B in valve body (5)；It, can be axial in the control piston (4) is mounted among valve body (5) hole
It moves freely, control piston (4) two sides are respectively communicated with oil circuit A, B.
2. the bidirectional locking arrangement of controllable pitch propeller of low hydraulic shock according to claim 1, it is characterised in that: described two to unload
The pressure unloading setting value of lotus cone valve is lower than tuning for Controllable Pitch Propeller maximum working pressure.
3. the bidirectional locking arrangement of controllable pitch propeller of low hydraulic shock according to claim 1, it is characterised in that: the off-load cone
Valve includes plug screw with holes (3a), spring (3b), small cone valve (3c), cone valve (3d), the plug screw (3a) with holes by screw thread with
The one end cone valve (3d) is fastenedly connected, and small cone valve (3c) is mounted in the hole cone valve (3d), and passes through spring (3b) and spiral shell with holes
Fill in (3a) elastic connection；Radial damping hole (3e) is provided on the cone valve (3d)；The plug screw with holes (3a) and cone valve
Axial damping hole (3f) is had on (3d)；The sealing surface of the small cone valve (3c) and the axial damping hole on cone valve (3d)
It is cooperatively connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365737.8A CN109334933A (en) | 2018-11-16 | 2018-11-16 | The bidirectional locking arrangement of controllable pitch propeller of low hydraulic shock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365737.8A CN109334933A (en) | 2018-11-16 | 2018-11-16 | The bidirectional locking arrangement of controllable pitch propeller of low hydraulic shock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109334933A true CN109334933A (en) | 2019-02-15 |
Family
ID=65315758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811365737.8A Pending CN109334933A (en) | 2018-11-16 | 2018-11-16 | The bidirectional locking arrangement of controllable pitch propeller of low hydraulic shock |
Country Status (1)
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|---|---|
| CN (1) | CN109334933A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916753A (en) * | 2019-04-17 | 2019-06-21 | 中国船舶重工集团公司第七0四研究所 | The long oil-piping electro-hydraulic loading of tuning for Controllable Pitch Propeller and fatigue experimental device and method |
Citations (10)
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|---|---|---|---|---|
| GB1341473A (en) * | 1970-02-12 | 1973-12-19 | Pedersen J M | Controllable pitch propeller |
| US6196801B1 (en) * | 1997-10-02 | 2001-03-06 | MüHLBAUER LUFTFAHRTTECHNIK GMBH | Adjustable propeller unit which can be hydraulically reversed |
| US20040173264A1 (en) * | 2003-03-06 | 2004-09-09 | Holder Robert E. | Pressure relief valve with bidirectional damping |
| CN101376429A (en) * | 2007-08-29 | 2009-03-04 | 中国船舶重工集团公司第七〇四研究所 | Bidirectional locking arrangement of controllable pitch propeller |
| CN201472657U (en) * | 2009-08-24 | 2010-05-19 | 武汉船用机械有限责任公司 | Two-way locking device and oil distributor of variable-pitch oil-cylinder piston of adjusting-pitch paddle |
| CN201712659U (en) * | 2010-07-02 | 2011-01-19 | 辽宁光大机械制造有限公司 | Unloading valve equipped with buffer spring |
| CN202493512U (en) * | 2012-03-05 | 2012-10-17 | 山东泰丰液压股份有限公司 | External control unloading hydraulic cartridge valve |
| 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 |
| CN206988215U (en) * | 2017-04-27 | 2018-02-09 | 重庆电子工程职业学院 | Pressure unloading control device |
| CN209321212U (en) * | 2018-11-16 | 2019-08-30 | 中国船舶重工集团公司第七0四研究所 | The bidirectional locking arrangement of controllable pitch propeller of low hydraulic shock |
-
2018
- 2018-11-16 CN CN201811365737.8A patent/CN109334933A/en active Pending
Patent Citations (10)
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|---|---|---|---|---|
| GB1341473A (en) * | 1970-02-12 | 1973-12-19 | Pedersen J M | Controllable pitch propeller |
| US6196801B1 (en) * | 1997-10-02 | 2001-03-06 | MüHLBAUER LUFTFAHRTTECHNIK GMBH | Adjustable propeller unit which can be hydraulically reversed |
| US20040173264A1 (en) * | 2003-03-06 | 2004-09-09 | Holder Robert E. | Pressure relief valve with bidirectional damping |
| CN101376429A (en) * | 2007-08-29 | 2009-03-04 | 中国船舶重工集团公司第七〇四研究所 | Bidirectional locking arrangement of controllable pitch propeller |
| CN201472657U (en) * | 2009-08-24 | 2010-05-19 | 武汉船用机械有限责任公司 | Two-way locking device and oil distributor of variable-pitch oil-cylinder piston of adjusting-pitch paddle |
| CN201712659U (en) * | 2010-07-02 | 2011-01-19 | 辽宁光大机械制造有限公司 | Unloading valve equipped with buffer spring |
| CN202493512U (en) * | 2012-03-05 | 2012-10-17 | 山东泰丰液压股份有限公司 | External control unloading hydraulic cartridge valve |
| 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 |
| CN206988215U (en) * | 2017-04-27 | 2018-02-09 | 重庆电子工程职业学院 | Pressure unloading control device |
| CN209321212U (en) * | 2018-11-16 | 2019-08-30 | 中国船舶重工集团公司第七0四研究所 | The bidirectional locking arrangement of controllable pitch propeller of low hydraulic shock |
Non-Patent Citations (1)
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| 许海东;: "基于随动系统的调距桨液压系统分析", 船海工程, no. 03 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916753A (en) * | 2019-04-17 | 2019-06-21 | 中国船舶重工集团公司第七0四研究所 | The long oil-piping electro-hydraulic loading of tuning for Controllable Pitch Propeller and fatigue experimental device and method |
| CN109916753B (en) * | 2019-04-17 | 2024-04-30 | 中国船舶集团有限公司第七〇四研究所 | Electro-hydraulic servo loading and fatigue test device and method for long oil pipeline of controllable pitch propeller |
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