CN102530214B - Hydraulic device for adjustable-pitch propeller with shaft-type oil distributor - Google Patents

Hydraulic device for adjustable-pitch propeller with shaft-type oil distributor Download PDF

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Publication number
CN102530214B
CN102530214B CN201210004523.4A CN201210004523A CN102530214B CN 102530214 B CN102530214 B CN 102530214B CN 201210004523 A CN201210004523 A CN 201210004523A CN 102530214 B CN102530214 B CN 102530214B
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China
Prior art keywords
oil
valve
oil outlet
distributor
hydraulic
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CN201210004523.4A
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Chinese (zh)
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CN102530214A (en
Inventor
邱晓峰
程涛
李磊
郭俊
王建强
雷华堂
桑雪梅
陈昌鄂
邹斌
赖晓辉
叶宝勋
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武汉船用机械有限责任公司
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Priority to CN201210004523.4A priority Critical patent/CN102530214B/en
Publication of CN102530214A publication Critical patent/CN102530214A/en
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Publication of CN102530214B publication Critical patent/CN102530214B/en

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Abstract

A hydraulic device for an adjustable-pitch propeller with a shaft-type oil distributor belongs to the field of shipbuilding. An oil outlet C is additionally arranged on a chamber shared by an oil outlet A of the oil distributor (6), an oil outlet D is additionally arranged on a chamber shared by an oil outlet B of the oil distributor (6), the oil outlet C and the oil outlet D are respectively communicated with a oil inlet of a switch valve (9), and an oil outlet of the switch valve (9) is led to an oil tank of a hydraulic power unit (10). A hydraulic system, the oil distributor, an electromagnetic directional valve and the switch valve are connected through pipelines to form a return circuit, when the pitch is stabilized, under the action of backpressure of the system, whenever hydraulic oil can enter the oil distributor to lead the oil distributor to be lubricated well, heat generated by rotation of an oil distribution shaft is taken away, allowable warning temperature cannot be exceeded, and normal operation of the adjustable-pitch propeller is guaranteed. Besides, by means of the switch valve (9), backpressure oil entering the oil distributor directly returns to the oil tank, so that normal operation of a bidirectional locking valve is guaranteed, and the pitch bi-directionally stabilized.

Description

A kind of hydraulic device for adjustable-pitch propeller with shaft-type oil distributor

Technical field

The present invention relates to a kind of tuning for Controllable Pitch Propeller, relate in particular to a kind of hydraulic device for adjustable-pitch propeller with shaft-type oil distributor, belong to shipbuilding field.

Background technology

The screw propeller of boats and ships has two kinds, and the one, adjustable pitch propeller (abbreviation tuning for Controllable Pitch Propeller) is comprised of the five large parts such as blade ,Jiang Grains mechanism, oil distributor, hydraulic efficiency pressure system and electric-control system or system.The 2nd, traditional fixed pitch propeller (being called for short spacing Paddle), spacing oar does not have oil distributor etc., simple in structure many.

Its principle of work of tuning for Controllable Pitch Propeller is different from spacing oar, and the blade of tuning for Controllable Pitch Propeller is directly fixed on propeller hub unlike spacing oar, but utilizes the steering unit in propeller hub to rotate blade, changes pitch angle.Therefore, the pitch of tuning for Controllable Pitch Propeller can be in operation and regulate arbitrarily, makes blade immediately in diverse location, realizes in the situation that keeping propeller speed constant, arbitrarily changes thrust and moment of torsion, makes boats and ships enter rapidly different operational configurations.When being adjusted in zero pitch position when blade, tuning for Controllable Pitch Propeller thrust is zero, and main frame is still with certain rotation speed operation, and boats and ships are as you were; When and for example blade forwards negative pitch position to, can make main frame turn to constant and at once realize and moveing backward.Therefore, tuning for Controllable Pitch Propeller is come out only more than 80 year, but in the shipping market of today, is widely applied.

In order to reduce the frequent area of hydraulic efficiency pressure system, carry work, extend the service life of hydraulic efficiency pressure system, prior art has adopted bidirectional locking valve, with Leakage prevention, stablizes pitch.As Chinese patent notification number: CN201472657U, the day for announcing: on May 19th, 2010, denomination of invention: the two-way locking device of a < < tuning for Controllable Pitch Propeller displacement oil cylinder piston and oil distributor > >, it is not only equipped with hydraulic control one-way valve at the rodless cavity of displacement oil cylinder piston, and at rod chamber, hydraulic control one-way valve is also housed, realize Bidirectional locking, while having guaranteed positive car and reversing, pressure oil can not leak, and can realize steady distance.

But, there are 2 deficiencies in prior art (referring to Fig. 2): one, for making oil distributor fully lubricated, hydraulic efficiency pressure system should have certain pressure, back pressure valve pressure should the corresponding certain pressure of having adjusted to, once and hydraulic efficiency pressure system has had pressure, will make bidirectional locking valve close, perform practically no function, can not get the object of two-way steady distance; Its two, for making two-way steady distance, hydraulic efficiency pressure system should be without pressure, back pressure valve should correspondingly adjust to zero, and once hydraulic efficiency pressure system is without pressure, will make oil distributor lubricated insufficient, surely apart from time, do not have for a long time hydraulic oil to enter oil distributor, cause oil distributor to can not get lubrication, the heat that its rotary seal place produces can not be taken away in time by hydraulic oil, cause long-play after oil distributor temperature rise too high, surpass and allow alarm temperature, affect the normal operation of tuning for Controllable Pitch Propeller.So 2 deficiencies of contradiction, urgently to be resolved hurrily.

Summary of the invention

The object of the invention is to overcome the deficiency of hydraulic efficiency gear for existing tuning for Controllable Pitch Propeller: hydraulic efficiency pressure system has back pressure, can make bidirectional locking valve close, the two-way steady distance of out of reach, and once hydraulic efficiency pressure system is without back pressure, the heat that causes oil distributor rotary seal place to produce can not be taken away in time by hydraulic oil, after causing long-play, oil distributor temperature rise is too high, surpasses and allows alarm temperature, affects the normal operation of tuning for Controllable Pitch Propeller.Provide a kind of simple in structure, easy to process, can guarantee the normal operation of bidirectional locking valve, reach two-way steady apart from object, can guarantee oil distributor good lubrication again, the heat producing when oil distribution shaft is rotated, the tuning for Controllable Pitch Propeller hydraulic efficiency gear that can take away in time.Its parts are few, and standardization level is high, and reflection rapidly, without leaking, can meet the needs of boats and ships production, navigation.

For achieving the above object, the technical solution used in the present invention is: a kind of hydraulic device for adjustable-pitch propeller with shaft-type oil distributor, comprise solenoid directional control valve, safety valve, back pressure valve, check valve, bidirectional locking valve, oil distributor, displacement oil cylinder, switch valve, hydraulic power unit, the rod chamber of described displacement oil cylinder and rodless cavity connect respectively bidirectional locking valve, the oil outlet A of described oil distributor and oil outlet B respectively with check valve, solenoid directional control valve is connected, on the same chamber of the oil outlet A of described oil distributor, set up oil outlet C, on the same chamber of the oil outlet B of described oil distributor, set up oil outlet D, described oil outlet C, D connects with switch valve oil inlet respectively, the oil outlet of switch valve, pass to the fuel tank of hydraulic power unit.

Described switch valve is normal opened type two-position four-way solenoid directional control valve.

The latus rectum of the whole oil return line of the fuel tank that described oil outlet C or D pass to hydraulic power unit, is all greater than the latus rectum of chargine line.

Compared with prior art, beneficial effect of the present invention is: between hydraulic efficiency pressure system, oil distributor, solenoid directional control valve and switch valve, by pipeline, be connected to form loop 1., surely apart from time (solenoid directional control valve is in meta), because system has the effect of back pressure, no matter when hydraulic oil can enter oil distributor in time, make oil distributor obtain good lubricating, take away the heat that oil distribution shaft rotation produces, play cooling and lubricating effect, oil distributor can not surpass and allow alarm temperature, guarantees the normal operation of tuning for Controllable Pitch Propeller.2. owing to there being the effect of switch valve, make to enter the direct oil sump tank of back pressure oil of oil distributor, be equivalent to system back pressure to reduce to zero, thereby guarantee the normal operation of bidirectional locking valve, arrive the object of two-way steady distance.3., before improving, when main frame is operated at full capacity, oil distributor temperature just constantly raises, until report to the police, thereby reduce engine speed to the 80-90% left and right of rated speed of rotation; After improvement, main frame works long hours at full capacity, and oil distributor temperature is also in tolerance band.

Accompanying drawing explanation

Fig. 1 is formation schematic diagram of the present invention.

Fig. 2 is the formation schematic diagram of prior art.

Fig. 3 is one embodiment of the invention schematic diagram.

In figure: solenoid directional control valve 1, safety valve 2, back pressure valve 3, check valve 4, bidirectional locking valve 5, oil distributor 6, displacement oil cylinder 8, switch valve 9, hydraulic power unit 10.

The specific embodiment

Below in conjunction with accompanying drawing explanation and the specific embodiment, the present invention will be further described, but be not the restriction to its protection domain.

Referring to Fig. 1, Fig. 3, a kind of hydraulic device for adjustable-pitch propeller with shaft-type oil distributor of the present invention, comprise solenoid directional control valve 1, safety valve 2, back pressure valve 3, check valve 4, bidirectional locking valve 5, oil distributor 6, displacement oil cylinder 8, switch valve 9, hydraulic power unit 10, the rod chamber of described displacement oil cylinder 8 and rodless cavity connect respectively bidirectional locking valve 5, the oil outlet A of described oil distributor 6 and oil outlet B respectively with check valve 4, solenoid directional control valve 1 is connected, on the same chamber of the oil outlet A of described oil distributor 6, set up oil outlet C, on the same chamber of the oil outlet B of described oil distributor 6, set up oil outlet D, described oil outlet C, D connects with switch valve 9 oil inlets respectively, the oil outlet of switch valve 9, pass to the fuel tank of hydraulic power unit 10.

Described switch valve 9 is normal opened type two-position four-way solenoid directional control valves.

Described oil outlet C or D pass to the latus rectum of whole oil return line of the fuel tank of hydraulic power unit 10, are all greater than the latus rectum of chargine line.

Referring to Fig. 2, the formation schematic diagram of prior art, the rodless cavity of displacement oil cylinder 8 connects bidirectional locking valve 5, and also connect bidirectional locking valve 5 at rod chamber, form Bidirectional locking, realize the two-way steady distance of tuning for Controllable Pitch Propeller, solenoid directional control valve 1 control displacement oil cylinder 8 just/reverse motion, safety valve 2 is set the operation pressure of hydraulic power unit 10, back pressure valve 3 is set the spill pressure of hydraulic power unit 10, check valve 4 can be to oil distributor 6 make-up oils, surely apart from time can play the lubricating effect to oil distributor 6.

But, if the pressure of back pressure valve 3 is greater than zero, back pressure valve 3 will make bidirectional locking valve 5 to close, and has affected tuning for Controllable Pitch Propeller two-way steady apart from effect, if reach the object of steady distance, the pressure of back pressure valve 3 is set to zero, bidirectional locking valve 5 cuts out completely, but surely apart from the stage, lubricating oil is directly got back to fuel tank cannot arrive oil distributor 6, therefore make the distribution oil ring of oil distributor 6 because friction temperature raises, surpass oil distributor permissible temperature.This or tuning for Controllable Pitch Propeller of prior art steady apart from and the too high main frame reduction of speed work of oil distributor 6 temperature rise, or or oil distributor 6 temperature rises are not high and the unstable distance of tuning for Controllable Pitch Propeller is the contradiction that cannot be in harmonious proportion.

Referring to Fig. 1, formation schematic diagram of the present invention.In order to solve the deficiencies in the prior art, the present invention, in prior art, increases oil outlet C, D on oil distributor 6, and oil outlet C, D and switch valve 9 are connected, and switch valve 9 leads to the fuel tank of hydraulic power unit 10 again.

When the displacement instruction that receives electric-control system 11, solenoid directional control valve 1 obtains electric, to oil distributor 6 output displacement pressure oils, switch valve 9 and solenoid directional control valve 1 simultaneously electric, from right position, become left position, now switch valve 9 is closed, and pressure oil enters after displacement oil cylinder 8 and gets back to fuel tank by B mouth from A mouth.

Until blade pitch, reach after command request, solenoid directional control valve 1 dead electricity is returned meta, hydraulic efficiency pressure system under the effect of back pressure valve 4, by bypass, hydraulic fluid port A, the B input low pressure lubricating oil through check valve 4 to oil distributor 6.

Surely, apart from state, switch valve 9 dead electricity, become right position from left position, and switch valve 9 is opened; Now low pressure lubricating oil is got back to fuel tank by oil outlet C and D and switch valve 9, makes the fluid of oil distributor 6 rotary seals place realize circulation, and the fricative heat of sealing place can be taken away in time, solved steady apart from time oil distributor problem of temperature rise.

Claims (3)

1. a hydraulic device for adjustable-pitch propeller with shaft-type oil distributor, comprise solenoid directional control valve (1), safety valve (2), back pressure valve (3), check valve (4), bidirectional locking valve (5), oil distributor (6), displacement oil cylinder (8), switch valve (9), hydraulic power unit (10), the rod chamber of described displacement oil cylinder (8) and rodless cavity connect respectively bidirectional locking valve (5), the oil outlet A of described oil distributor (6) connects with the oil outlet end of a check valve (4) and an oil outlet end of solenoid directional control valve (1) respectively, the oil outlet B of described oil distributor (6) connects with the oil outlet end of another check valve (4) and another oil outlet end of solenoid directional control valve (1) respectively, the oil inlet end parallel connection of two check valves (4) is led to fuel tank by back pressure valve (3), the oil inlet end of described safety valve (2) is connected in parallel on the oil inlet end of solenoid directional control valve (1), the oil outlet end of safety valve (2) is connected in parallel on the oil inlet end of back pressure valve (3), the oil inlet end of the oil revolving end of solenoid directional control valve (1) and back pressure valve (3) is in parallel, the oil outlet end of back pressure valve (3) leads to fuel tank, it is characterized in that: on the same chamber of the oil outlet A of described oil distributor (6), set up oil outlet C, on the same chamber of the oil outlet B of described oil distributor (6), set up oil outlet D, described oil outlet C, D connects with switch valve (9) oil inlet respectively, the oil outlet of switch valve (9), pass to the fuel tank of hydraulic power unit (10).
2. a kind of hydraulic device for adjustable-pitch propeller with shaft-type oil distributor according to claim 1, is characterized in that: described switch valve (9) is normal opened type two-position four-way solenoid directional control valve.
3. a kind of hydraulic device for adjustable-pitch propeller with shaft-type oil distributor according to claim 1, is characterized in that: described oil outlet C or D pass to the latus rectum of whole oil return line of the fuel tank of hydraulic power unit (10), is all greater than the latus rectum of chargine line.
CN201210004523.4A 2012-01-09 2012-01-09 Hydraulic device for adjustable-pitch propeller with shaft-type oil distributor CN102530214B (en)

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CN201210004523.4A CN102530214B (en) 2012-01-09 2012-01-09 Hydraulic device for adjustable-pitch propeller with shaft-type oil distributor

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CN201210004523.4A CN102530214B (en) 2012-01-09 2012-01-09 Hydraulic device for adjustable-pitch propeller with shaft-type oil distributor

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CN102530214B true CN102530214B (en) 2014-02-12

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103953593B (en) * 2014-05-13 2016-08-24 南京高精船用设备有限公司 Hydraulic control device is pushed away for boats and ships adjustable pitch side
CN104088842B (en) * 2014-06-30 2016-05-11 武汉船用机械有限责任公司 Automatic identification and compensation method and the system in a kind of proportional direction valve control dead band
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
CN106323616B (en) * 2016-08-26 2020-01-31 武汉船用机械有限责任公司 Rotation test system of box-type oil distributor
CN107600378B (en) * 2017-07-28 2019-09-20 武汉船用机械有限责任公司 A kind of pitch measurement device for tuning for Controllable Pitch Propeller
CN108557046B (en) * 2018-05-30 2019-11-15 武汉船用机械有限责任公司 Shaft-type oil distributor
CN109916606A (en) * 2019-01-23 2019-06-21 武汉船用机械有限责任公司 Shaft-type oil distributor reliability test system
CN110329477A (en) * 2019-05-31 2019-10-15 武汉船用机械有限责任公司 Adjustable-pitch propeller with shaft-type oil distributor system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501392A1 (en) * 1981-03-04 1982-09-10 Mouren Jacques Hydraulic servo controller for pitch of ship's propeller - uses auxiliary distributor and hydraulic jack connected to moving register of main distributor to position rotating shaft
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
KR20100108718A (en) * 2009-03-30 2010-10-08 김기인 Simplified link device in oil distribution box of controllable pitch propeller system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501392A1 (en) * 1981-03-04 1982-09-10 Mouren Jacques Hydraulic servo controller for pitch of ship's propeller - uses auxiliary distributor and hydraulic jack connected to moving register of main distributor to position rotating shaft
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
KR20100108718A (en) * 2009-03-30 2010-10-08 김기인 Simplified link device in oil distribution box of controllable pitch propeller system
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

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