CN200954875Y - Two-oil-pipe distance-adjusting screw propeller capable of locking screw pitch - Google Patents
Two-oil-pipe distance-adjusting screw propeller capable of locking screw pitch Download PDFInfo
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- CN200954875Y CN200954875Y CN 200620098532 CN200620098532U CN200954875Y CN 200954875 Y CN200954875 Y CN 200954875Y CN 200620098532 CN200620098532 CN 200620098532 CN 200620098532 U CN200620098532 U CN 200620098532U CN 200954875 Y CN200954875 Y CN 200954875Y
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Abstract
The utility model relates to a double oil pipe distance adjustment screw propeller with locked screw distance, and pertains to the ship pushing device. A piston 21 and a piston rod 22 inside the distance variation oil cylinder 2 are connected with a screw propeller blade rotation device 3. An internal oil pipe 23 is connected with a non-rod cavity A and an external oil pipe 24 is connected with a rod cavity B arranged inside the piston rod 22. A liquid control single way valve 4 is arranged on the internal oil pipe 23. The oil outlet of the liquid control single way valve 4 is connected with the non-rod cavity A, and a liquid control opening 41 on the liquid control single way valve 4 is connected with the external oil pipe 24. The working position of the piston 21 is stable; the device will not be influenced by the system leakage, e.g. oil distributor 5. The distance adjustment propeller output is stable, the working efficacy is improved, and the hydraulic device needs no frequent start. The device can eliminate the burden of the drive, the structure is simple, and the modification on the distance adjustment propeller is small, which is practical to the improvement on the double oil pipe propeller.
Description
Affiliated technical field
The utility model relates to the screw propeller that a kind of propulsion of ship is used, and is a kind of double tube controllable pitch propeller of lockable pitch specifically.
Background technology
Adopt the principle of work of the tuning for Controllable Pitch Propeller of inside and outside double tube structure to see Fig. 1.The pressure oil of hydraulic power unit output is by C mouth and D mouth on the oil distributor 5, enter into respectively in the double tube in the piston rod, pressure oil enters the A chamber of displacement oil cylinder 2 on the propeller hub 1 during positive car through the passage of inner oil tube, promote piston 21 motions, and drive 3 actions of screw propeller rotating vane mechanism, change the pitch of blade.And when reversing pressure oil enter the B chamber of displacement oil cylinder 2 through outer oil pipe.When needing displacement, by of A, the B chamber respectively oil-feed of electric-control system instruction hydraulic power unit to the displacement oil cylinder, carry out the tuning for Controllable Pitch Propeller blade just, the control operation that changes of reversing, thereby realize changing the purpose of ship speed.
When screw propeller is worked under some appointment pitch, when promptly not needing to change pitch, there is not new pressure oil to enter into displacement oil cylinder 2.Because the internal leakage at places such as oil distributor 5, can cause the change of displacement oil cylinder 2 internal pressures, under external force effects such as hydrodynamic force moment of torsion, piston 21 positions will change, the pitch of blade will change in the screw propeller rotating vane mechanism 3, that is to say that pitch can't stablize.Especially when ahead pitch was worked, pitch can reduce, and will have influence on the performances such as the speed of a ship or plane of ship like this.Generally, if pitch changes, pitch feedback mechanism can send signal to control system, sends the instruction that hydraulic efficiency gear starts by control system, to 2 positive car chamber (A chamber) repairings of displacement oil cylinder, and the compensation of realization pitch and stable.If let out more seriously in the system, hydraulic efficiency gear just must often start, and could realize stablizing of pitch.In addition, tuning for Controllable Pitch Propeller need work screw propeller by jury pump to oil distributor 5 oilings when meeting an urgent need operating mode under maximum ahead pitch.Equally, owing to reason such as letting out in the system, when emergent operating mode, need the frequent starting jury pump to keep the stable of pitch.The frequent starting of hydraulic efficiency gear certainly will cause the heating of system, easily causes the hydraulic efficiency gear fault, reduces its service life.
Summary of the invention
The purpose of this utility model is to overcome the defective of prior art and the deficiency of existence, and then a kind of double tube controllable pitch propeller of lockable pitch is provided.It is simple in structure, and roll adjustment is stable, and the pitch locking is reliable, and control is convenient, and is little to the dependency degree of hydraulic efficiency pressure system.
Technical solution of the present utility model is: the double tube controllable pitch propeller of lockable pitch, propeller hub is provided with the displacement oil cylinder, in-oil cylinder piston of displacement and piston rod are connected with screw propeller rotating vane mechanism, be provided with inner oil tube that is communicated with displacement oil cylinder rodless cavity A and the outer oil pipe that is communicated with displacement cylinder rod chamber B in the piston rod, inner oil tube is provided with hydraulic control one-way valve, the oil outlet of hydraulic control one-way valve leads to rodless cavity A, and the hydraulic control mouth on the hydraulic control one-way valve is communicated with the inner chamber of outer oil pipe.
Compare with the tuning for Controllable Pitch Propeller of general double tube formula, the utlity model has following advantage: 1, can guarantee the stable of displacement oil cylinder internal pressure, the control position of piston can not change with the variation of external force, increased the stability of tuning for Controllable Pitch Propeller work, i.e. the stability of the naval vessel speed of a ship or plane.The tuning for Controllable Pitch Propeller horsepower output is stable, and efficient improves.2, the influence that the work pitch of tuning for Controllable Pitch Propeller is not changed by oil distributor and even hydraulic efficiency pressure system internal pressure, the leakage of devices such as oil distributor can not cause that tuning for Controllable Pitch Propeller displacement oil cylinder pressure inside changes.3, do not need the frequent startup of hydraulic efficiency gear, prolonged the service life of hydraulic efficiency gear.When emergent, pitch tuning for Controllable Pitch Propeller can be locked in maximum positive car position, does not need to start continually jury pump.4, reduce the work capacity of naval vessel navigating mate, increased traveling comfort, need not often to observe the variation of pitch and take surely apart from measure.5, simple in structure, less to the change of tuning for Controllable Pitch Propeller, be suitable for existing double tube formula tuning for Controllable Pitch Propeller is transformed.
Description of drawings
Fig. 1 is the structural representation of double tube controllable pitch propeller
Fig. 2 is the scheme drawing of the utility model structure
The specific embodiment
Below in conjunction with the description of drawings and the specific embodiment the utility model is described in further detail:
Referring to Fig. 1, Fig. 2, the utility model and existing double tube tuning for Controllable Pitch Propeller structure are basic identical, its propeller hub 1 is provided with displacement oil cylinder 2, piston 21 and piston rod 22 in the displacement oil cylinder 2 are connected with screw propeller rotating vane mechanism 3, are provided with inner oil tube 23 that is communicated with displacement oil cylinder rodless cavity A and the outer oil pipe 24 that is communicated with displacement cylinder rod chamber B in the piston rod 22.Different is that inner oil tube 23 is provided with hydraulic control one-way valve 4, and the oil outlet of hydraulic control one-way valve 4 is communicated with rodless cavity A, and the hydraulic control mouth 41 on the hydraulic control one-way valve 4 is communicated with the inner chamber of outer oil pipe 24.
The two ends of hydraulic control one-way valve 4 link to each other with inner oil tube 23, and the oil outlet of hydraulic control one-way valve 4 leads to rodless cavity A, and its oil inlet leads to oil distributor 5.Oil in the inner oil tube 23 leads to no bar (positive car) the chamber A of displacement oil cylinder 2 through hydraulic control one-way valve 4, hydraulic control one-way valve 4 is arranged on the inner oil tube 23 of tuning for Controllable Pitch Propeller, the influence of having avoided rodless cavity A in-to-in fluid changed by the hydraulic efficiency gear system pressure, (positive car) the chamber A internal oil pressure that can keep not having bar stable.What the oil in the outer oil pipe 24 led to displacement oil cylinder 2 has bar (reversing) chamber B, and the hydraulic control mouth 41 of hydraulic control one-way valve 4 is connected with outer oil pipe 24.During positive car displacement, pressure oil enters into the A chamber through the inner oil tube 23 of associating through hydraulic control one-way valve 4, and piston 21 is to the motion of B cavity direction, and the low pressure oil in the B chamber is got back to fuel tank; During the reversing displacement, pressure oil enters into the B chamber, piston 21 moves to the A cavity direction, simultaneously pressure oil enters hydraulic control mouth 41 on the hydraulic control one-way valve 4 from outer oil pipe 24, promote hydraulic control one-way valve 4 in-to-in pistons, back down valve, hydraulic control one-way valve 4 is opened, the low pressure oil in the A chamber is got back to oil distributor 5 and fuel tank through hydraulic control one-way valve 4 and inner oil tube 23; Positive car surely apart from the time because the low pressure oil in B chamber can not make hydraulic control one-way valve 4 open, the pressure oil in A chamber is by hydraulic control one-way valve 4 lockings, promptly the A chamber forms the osed top chamber, blade will be fixed under certain pitch and work.
This mechanism had both guaranteed just to flow to, the oil of astern oil bottle is very unimpeded, had guaranteed that again screw propeller is operated under the situation of ahead pitch, and the pressure oil in the positive car chamber A can not leak, thereby had guaranteed the stable of pitch.
Claims (1)
1. the double tube controllable pitch propeller of lockable pitch, propeller hub (1) is provided with displacement oil cylinder (2), piston (21) and piston rod (22) in the displacement oil cylinder (2) are connected with screw propeller rotating vane mechanism (3), be provided with inner oil tube (23) that is communicated with displacement oil cylinder rodless cavity A and the outer oil pipe (24) that is communicated with displacement cylinder rod chamber B in the piston rod (22), it is characterized in that: inner oil tube (23) is provided with hydraulic control one-way valve (4), the oil outlet of hydraulic control one-way valve (4) leads to rodless cavity A, and the hydraulic control mouth (41) on the hydraulic control one-way valve (4) is communicated with the inner chamber of outer oil pipe (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098532 CN200954875Y (en) | 2006-08-18 | 2006-08-18 | Two-oil-pipe distance-adjusting screw propeller capable of locking screw pitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098532 CN200954875Y (en) | 2006-08-18 | 2006-08-18 | Two-oil-pipe distance-adjusting screw propeller capable of locking screw pitch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200954875Y true CN200954875Y (en) | 2007-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620098532 Expired - Fee Related CN200954875Y (en) | 2006-08-18 | 2006-08-18 | Two-oil-pipe distance-adjusting screw propeller capable of locking screw pitch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200954875Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102224069A (en) * | 2008-09-22 | 2011-10-19 | 伯格推进技术公司 | An adjustable propeller arrangement and a method of distributing fluid to and/or from such an adjustable propeller arrangement |
| CN102536960A (en) * | 2012-03-21 | 2012-07-04 | 苏州船用动力系统股份有限公司 | Rear-mounted oil cylinder lockup valve device |
| CN104071322A (en) * | 2014-05-22 | 2014-10-01 | 赵晓凯 | Self-lubrication adjustable-pitch propeller and hydraulic and lubricating system for adjustable-pitch propeller |
| CN106500972A (en) * | 2016-09-23 | 2017-03-15 | 武汉船用机械有限责任公司 | A kind of land united test equipment of tuning for Controllable Pitch Propeller |
| CN106546421A (en) * | 2016-10-21 | 2017-03-29 | 武汉船用机械有限责任公司 | A kind of distance-adjustable oar hub assay device |
| CN108608206A (en) * | 2018-05-31 | 2018-10-02 | 武汉船用机械有限责任公司 | A kind of assembly method of tuning for Controllable Pitch Propeller |
| CN108621060A (en) * | 2018-05-31 | 2018-10-09 | 武汉船用机械有限责任公司 | A kind of positioning tool and method of roll adjustment paddle shaft inner oil tube |
| CN109538579A (en) * | 2018-12-18 | 2019-03-29 | 杭州前进齿轮箱集团股份有限公司 | A kind of rack of simulation oil distributor of adjustable propeller work |
| CN111661289A (en) * | 2020-04-23 | 2020-09-15 | 武汉船用机械有限责任公司 | Method and device for identifying faults of controllable pitch propeller |
-
2006
- 2006-08-18 CN CN 200620098532 patent/CN200954875Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102224069B (en) * | 2008-09-22 | 2014-06-25 | 伯格推进技术公司 | An adjustable propeller arrangement and a method of distributing fluid to and/or from such an adjustable propeller arrangement |
| CN102224069A (en) * | 2008-09-22 | 2011-10-19 | 伯格推进技术公司 | An adjustable propeller arrangement and a method of distributing fluid to and/or from such an adjustable propeller arrangement |
| CN102536960A (en) * | 2012-03-21 | 2012-07-04 | 苏州船用动力系统股份有限公司 | Rear-mounted oil cylinder lockup valve device |
| CN104071322A (en) * | 2014-05-22 | 2014-10-01 | 赵晓凯 | Self-lubrication adjustable-pitch propeller and hydraulic and lubricating system for adjustable-pitch propeller |
| CN104071322B (en) * | 2014-05-22 | 2016-07-06 | 上海利屹恩船舶科技有限公司 | Self-lubricating adjustable pitch oar and adjustable pitch oar hydraulic pressure thereof and lubricating system |
| CN106500972B (en) * | 2016-09-23 | 2019-10-18 | 武汉船用机械有限责任公司 | A kind of land united test equipment of tuning for Controllable Pitch Propeller |
| CN106500972A (en) * | 2016-09-23 | 2017-03-15 | 武汉船用机械有限责任公司 | A kind of land united test equipment of tuning for Controllable Pitch Propeller |
| CN106546421A (en) * | 2016-10-21 | 2017-03-29 | 武汉船用机械有限责任公司 | A kind of distance-adjustable oar hub assay device |
| CN106546421B (en) * | 2016-10-21 | 2019-02-05 | 武汉船用机械有限责任公司 | A kind of distance-adjustable oar hub experimental rig |
| CN108621060A (en) * | 2018-05-31 | 2018-10-09 | 武汉船用机械有限责任公司 | A kind of positioning tool and method of roll adjustment paddle shaft inner oil tube |
| CN108608206A (en) * | 2018-05-31 | 2018-10-02 | 武汉船用机械有限责任公司 | A kind of assembly method of tuning for Controllable Pitch Propeller |
| CN109538579A (en) * | 2018-12-18 | 2019-03-29 | 杭州前进齿轮箱集团股份有限公司 | A kind of rack of simulation oil distributor of adjustable propeller work |
| CN111661289A (en) * | 2020-04-23 | 2020-09-15 | 武汉船用机械有限责任公司 | Method and device for identifying faults of controllable pitch propeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071003 Termination date: 20130818 |