CN110395373A - Oil distributor with auxiliary servo oil cylinder - Google Patents
Oil distributor with auxiliary servo oil cylinder Download PDFInfo
- Publication number
- CN110395373A CN110395373A CN201910752852.9A CN201910752852A CN110395373A CN 110395373 A CN110395373 A CN 110395373A CN 201910752852 A CN201910752852 A CN 201910752852A CN 110395373 A CN110395373 A CN 110395373A
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- oil
- cylinder
- transmission
- rod
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- 230000005540 biological transmission Effects 0.000 claims abstract description 66
- 230000033001 locomotion Effects 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000011664 signaling Effects 0.000 claims abstract description 7
- 239000011295 pitch Substances 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 22
- 210000004907 gland Anatomy 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 115
- 238000010586 diagram Methods 0.000 description 11
- 125000006850 spacer group Chemical group 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000008713 feedback mechanism Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Servomotors (AREA)
Abstract
The present invention relates to a kind of oil distributors with auxiliary servo oil cylinder, transmission spool bar assembly is socketed in oil distribution shaft by supporting bushing, transmission spool bar assembly can be moved along bearing bushing, it is driven the main control valve of the transmission valve core rod front end connection mechanical hydraulic servo device in spool bar assembly, the servo-cylinder piston rod being driven in the transmission spool rod rear end connection auxiliary servo cylinder component in spool bar assembly, servo-cylinder in servo-cylinder component connects proportioning valve, it is passed in and out by the oil liquid of proportional valve control auxiliary servo oil cylinder, the back-and-forth motion of servo-cylinder piston is realized to control the oil inlet and outlet of the main control valve of mechanical hydraulic servo device, main control valve controls propeller hub cylinder action, to realize that blade screw pitch adjusts.And pass through the axial position of the feedback component export transmission valve core rod on oil distributor, the straight reciprocating motion of propeller hub oil cylinder piston is indicated into the underwater blade angle of pitch by oil distributor feedback component machinery, and it is converted to the potentiometric angular signal of screw pitch signalling generator, realize electric-control system closed-loop control.
Description
Technical field
The present invention relates to a kind of ship power propulsion device, especially a kind of servo oil for ship power propulsion device
The oil distributor of cylinder
Background technique
Currently, the oil distributor in ship power propulsion system pitch propeller device is generally divided into and is placed in gear-box free end
Box type oil distributor and two kinds of patterns of shaft-type oil distributor in intermediate shaft system.The major function of oil distributor is in shafting static state
Or roll adjustment hydraulic oil is inputted and is exported to distance-adjustable oar hub oil cylinder under turn state, driving propeller hub distance adjustor movement is real
Existing blade screw pitch adjustment.Box type oil distributor is easy for installation since structure is simple, therefore obtains on the ship using tuning for Controllable Pitch Propeller
It is commonly used.This oil distributor generallys use proportioning valve as hydraulic and electric control system bridge, passes through ratio valve regulation liquid
The flow of pressure oil and direction, and by the input and export of oil distributor realization hydraulic oil.For the large size using pitch propeller device
Ship can effectively avoid the big problem of impact vibration using mechanical hydraulic servo device compared to directly being controlled by proportioning valve.Such as
What realizes the control of mechanical hydraulic servo device, currently without applicable solution.Therefore, it is necessary to a kind of new oil distributor structure shapes
Formula can control mechanical hydraulic servo device while carrying out oil liquid distribution.
Summary of the invention
The present invention proposes a kind of box type oil distributor with auxiliary servo oil cylinder, passes through proportional valve control auxiliary servo oil cylinder
Oil liquid disengaging, realize servo-cylinder piston back-and-forth motion, and then control mechanical hydraulic servo device (main control valve) disengaging oil
Mouthful, and propeller hub distance adjustor is driven by propeller hub oil cylinder, the adjustment of blade screw pitch is realized, to meet the tune for using mechanical hydraulic servo device
Demand away from paddle device；Meanwhile the straight reciprocating motion of propeller hub oil cylinder piston (being come by axis inner oil tube rigid of transmission) being passed through
Oil distributor feedback mechanism machinery indicates the underwater blade angle of pitch, and is converted to the potentiometric angular signal of screw pitch signalling generator, realizes
Electric-control system closed-loop control.The present invention is suitable for the large ship using pitch propeller device.
To achieve the above object, the technical scheme is that a kind of oil distributor with auxiliary servo oil cylinder, including with oil
Axis, transmission spool bar assembly, auxiliary servo cylinder component, the transmission spool bar assembly are socketed in oil distribution shaft by supporting bushing
It is interior, and transmission spool bar assembly can be moved along bearing bushing, the transmission valve core rod front end connection in the transmission spool bar assembly
The main control valve of mechanical hydraulic servo device, the transmission spool rod rear end being driven in spool bar assembly connect auxiliary servo oil cylinder group
Servo-cylinder piston rod in part, the servo-cylinder in the servo-cylinder component connects proportioning valve, auxiliary by proportional valve control
It helps the oil liquid of servo-cylinder to pass in and out, realizes the back-and-forth motion of servo-cylinder piston to control the main control valve of mechanical hydraulic servo device
Oil inlet and outlet, main control valve control propeller hub cylinder action, to realize that blade screw pitch adjusts.
Further, the servo in the transmission spool rod rear end and auxiliary servo cylinder component in the transmission spool bar assembly
Cylinder piston rod is connected with feedback component, and the axial position of transmission valve core rod is exported by feedback component, is converted to screw pitch signalling generator
Potentiometric angular signal realizes electric-control system closed-loop control.
Further, the oil distribution shaft is fixedly connected integrally with bearing bushing by internal screw thread positioning pin, and both ends are equipped with O-shaped
Sealing ring；The oil distribution shaft pass through pressure-bearing shell component, and with high pressure sealing ring, the low pressure sealing ring structure in pressure-bearing shell component
At clearance seal pair.
Further, the transmission spool bar assembly passes through bearing bushing, and there is O-ring seal at both ends, constitutes closing chamber.
Further, the mobile bar axis in the transmission valve core rod group passes through thrust bearing and transverse bearing and transmission valve core rod
Connection rotate transmission valve core rod can with oil distribution shaft by thrust bearing and transverse bearing, and can be straight in bearing bush hole
Line is mobile.
Further, mobile bar axis and servo-cylinder piston rod in auxiliary servo cylinder component in the transmission spool bar assembly
Together by aligning axis, aligning pin connection.
Further, the feedback loop empty set in the feedback component is on oil distribution shaft, the feedback rod insertion transmission valve core rod
In fluting gland in component, and it is connect by screw with transmission valve core rod；The feedback rod and feedback loop are fixed by screw
Connection；It by sliding block connecting fork body in the groove of the feedback loop, pitches and is socketed rocker arm on body, form transmission mechanism.
Further, the servo-cylinder piston is mounted on servo-cylinder piston rod, constitutes a movement mechanism, can be incited somebody to action
The roll adjustment that the movement of servo-cylinder piston switchs to be driven valve core rod is mobile；It is filled between the servo-cylinder piston rod and servo-cylinder body
There is O-ring seal, is respectively mounted O-ring seal between servo-cylinder piston and servo-cylinder body, servo-cylinder piston rod；Servo-cylinder
It is screwed servo-cylinder lid on body, is sealed between mating surface equipped with O-ring seal；Screw hole is provided among the servo-cylinder lid
With the hole for having seal groove, anti-rotation screw rod passes through external threading in screw hole, the hole on seal groove equipped with O-ring seal and rod end
Connection, move servo-cylinder piston rod can only and is not able to rotate.
The beneficial effects of the present invention are:
The present invention is passed in and out by the oil liquid of proportional valve control auxiliary servo oil cylinder, realizes the front and back of auxiliary servo oil cylinder piston
It is mobile, and then the oil inlet and outlet of mechanical hydraulic servo device (main control valve) is controlled, and drive propeller hub distance adjustor by propeller hub oil cylinder,
The adjustment of blade screw pitch is realized, and by the axial position of the feedback component export transmission valve core rod on oil distributor, by propeller hub oil cylinder
The straight reciprocating motion (being come by axis inner oil tube rigid of transmission) of piston indicates underwater blade by oil distributor feedback mechanism machinery
The angle of pitch, and it is converted to the potentiometric angular signal of screw pitch signalling generator, realize electric-control system closed-loop control.
Detailed description of the invention
Fig. 1 is the oil distributor component diagram with auxiliary servo oil cylinder；
Fig. 2 is the cross-sectional view in Fig. 1 along C-C；
Fig. 3 is servo-cylinder component diagram；
Fig. 4 is K direction view in Fig. 3；
Fig. 5 is transmission valve core rod component diagram；
Fig. 6 is pressure-bearing shell component diagram；
Fig. 7 is feedback component schematic diagram；
Fig. 8 is the oil distributor working principle diagram with auxiliary servo oil cylinder；
In figure: 1. oil distribution shafts, 2. transmission spool bar assemblies, 2a. are driven valve core rod, 2b. axial positioning sleeve, 2c. mobile bar
Axis, 2d. bearing space ring, the outer ring 2e. positioning ring, 2f. fluting gland, 3. bearing bushings, 4. pressure-bearing shell components, 4a. rubber oil
Envelope seat, 4b. low pressure seal spacer ring, 4c. low pressure sealing ring, 4d. pressure-bearing shell, 4e. high pressure sealing ring, 4f. high pressure sealing spacer ring,
4g. end cap, 5. internal screw thread positioning pins, 6. feedback components, 6a. feedback loop, 6b. rocker arm, 6c. pitch body, 6d. sliding block, 6e. feedback
Bar, 7. cabinets, 8. aligning axis, 9. aligning pins, 10. housing plates, 11. servo-cylinder components, 11a. servo-cylinder piston rod,
11b. servo-cylinder body, 11c. servo-cylinder flange, 11d. servo-cylinder piston, 11e. two-half block rings, 11f. rod end inner sleeve,
11g. servo-cylinder lid, 11h. anti-rotation screw rod, 12. oil inlet bump joints, 13. fuel-displaced bump joints, 20. oil distributors, 21. auxiliary
Servo-cylinder group, 22. proportioning valves, the main control valve of 23. mechanical hydraulic servo devices, 24. propeller hub oil cylinders.
Specific embodiment
The invention will be further described with embodiment with reference to the accompanying drawing.
As shown in Fig. 1 to Fig. 8, the oil distributor 20 of the invention with auxiliary servo oil cylinder, including a hollow oil distribution shaft
1,2, bearing bushings 3 of a set of transmission spool bar assembly, 4, internal screw thread positioning pins 5 of a set of pressure-bearing shell component, a set of
8, two, the aligning axis aligning pin 9, one of cabinet 7, one of feedback component 6, one housing plate 10, a set of auxiliary servo oil cylinder group
11, oil inlet bump joints 12 of part and a fuel-displaced bump joint 13, are shown in Fig. 1,2.It is driven spool bar assembly 2 and passes through bearing lining
Set 3 is socketed in oil distribution shaft 1, and transmission spool bar assembly 2 can be moved along bearing bushing 3, the transmission being driven in spool bar assembly 2
Valve core rod front end connects the main control valve 23 of mechanical hydraulic servo device, the transmission spool rod rear end connection being driven in spool bar assembly 2
Servo-cylinder piston rod in auxiliary servo cylinder component 21, the servo-cylinder in auxiliary servo cylinder component 21 connect proportioning valve
22, it is passed in and out by the oil liquid that proportioning valve 22 controls auxiliary servo oil cylinder 21, realizes the back-and-forth motion of servo-cylinder piston to control
The oil inlet and outlet of the main control valve 23 of mechanical hydraulic servo device, main control valve 23 controls propeller hub oil cylinder 24 and acts, to realize blade
Screw pitch adjustment.It is driven the transmission spool rod rear end in spool bar assembly 2 and the servo-cylinder in auxiliary servo cylinder component 21 is living
Stopper rod is connected with feedback component 6, and the axial position of transmission valve core rod is exported by feedback component 6, is converted to screw pitch signalling generator current potential
The angular signal of meter realizes electric-control system closed-loop control.
Pressure-bearing shell component 4 is cooperated with cabinet 7 by seam allowance and O-ring seal is tightened together with screw.Oil distribution shaft 1 with
Bearing bushing 3 is solidified as a whole by internal screw thread positioning pin 5, and both ends are equipped with O-ring seal.Oil distribution shaft 1 passes through pressure-bearing shell component
4, oil distribution shaft 1 constitutes clearance seal pair, high pressure sealing with high pressure sealing ring 4e, the low pressure sealing ring 4c in pressure-bearing shell component 4
Ring 4e, low pressure sealing ring 4c internal diameter are cast with babbit layer.It is driven spool bar assembly 2 and passes through bearing bushing 3, both ends have O-shaped
Sealing ring constitutes closing chamber.Feedback loop 6a empty set in feedback component 6 is on oil distribution shaft 1, feedback rod 6e insertion transmission valve core rod
In fluting gland 2f in component 2, it is connect by screw with transmission valve core rod 2a, is connect by screw with feedback loop 6a.Auxiliary
Servo-cylinder component 11 is tightened together by screw, positioning pin with housing plate 10 with servo-cylinder flange 11c, housing plate
10 are screwed together with cabinet 7 by seam allowance, and O-ring seal is housed on housing plate 10 and 7 mating surface of cabinet.Pass through
Aligning axis 8, aligning pin 9 are living by servo-cylinder in mobile bar axis 2c in transmission spool bar assembly 2 and auxiliary servo cylinder component 11
Stopper rod 11a links together, and servo-cylinder piston 11d is mounted on servo-cylinder piston rod 11a, constitutes a fitness machine
Structure, the roll adjustment that the movement of servo-cylinder piston 11d can be switched to be driven valve core rod 2a are mobile.Oil inlet bump joint 12 and out oil process
Blue connector 13 is mounted on the height press oil port relevant position of pressure-bearing shell 4d with screw respectively, and the disengaging oil master for constituting oil distributor is logical
Road.
Fig. 3,4 be the schematic diagram for assisting servo-cylinder group 21.Rod end inner sleeve 11f and servo-cylinder piston rod 11a is by riding
Seam screw is fixed as one, and servo-cylinder piston 11d is mounted on servo-cylinder piston rod 11a, is had two-half block rings 11e outside, is used spiral shell
Nail is fixed, integrally through servo-cylinder body 11b.O-ring seal is housed between servo-cylinder piston rod 11a and servo-cylinder body 11b,
O-ring seal is respectively mounted between servo-cylinder piston 11d and servo-cylinder body 11b, servo-cylinder piston rod 11a.Servo-cylinder lid
11g is screwed on servo-cylinder body 11b, there is O-ring seal sealing between mating surface.It is provided among servo-cylinder lid 11g
Screw hole and hole with seal groove, anti-rotation screw rod 11h pass through screw hole, the hole on seal groove equipped with O-ring seal and rod end
Inner sleeve 11f is threadedly coupled, therefore servo-cylinder piston rod 11a can only be moved and is not able to rotate.
Fig. 5 is transmission 2 schematic diagram of valve core rod group.Thrust bearing and transverse bearing are housed, centre is equipped on mobile bar axis 2c
Bearing space ring 2d is positioned by axial positioning sleeve 2b, and left end is fixed with stop washer and retainer nut, and right end is positioned equipped with outer ring
Ring 2e is fixed fluting gland 2f and transmission valve core rod 2a by screw.Being driven valve core rod 2a both can be with oil by bearing
The rotation of axis 1 can move linearly in bearing 3 hole of bushing again.
Fig. 6 is pressure-bearing shell group schematic diagram.It is provided with slotted hole on high pressure sealing ring 4e, high pressure sealing spacer ring 4f, with end cap
4g can be floated up and down by long pin connection, and end cap 4g and pressure-bearing shell 4d is fixed by seam allowance with bolt, equipped with O-shaped on end cap
Sealing ring forms oil distributor high-pressure sealing chamber.Slotted hole and low pressure sealing ring 4c is provided on low pressure seal spacer ring 4b to connect by pin
It connects, low pressure sealing ring 4c can float up and down, and rotating seal ring is housed back-to-back on rubber oil sea seat 4a, close with low pressure by screw
Excluder ring 4b, pressure-bearing shell 4d connection, at pressure-bearing shell 4d cooperation be equipped with 2 O-ring seals, form oil distributor low pressure seal
Chamber.
Fig. 7 is feedback group schematic diagram.Feedback rod 6e is connected by screw to feedback loop 6a.Sliding block 6d is in feedback loop 6a groove
Middle movement, band moving fork body 6c are moved together, and rocker arm 6b covers on fork body 6c, is fixed with retaining ring, form transmission mechanism.
Fig. 8 is the oil distributor working principle diagram with auxiliary servo oil cylinder.When carrying out positive vehicle roll adjustment, the pressure from proportioning valve
Oil enters the back cavity of oil distributor auxiliary servo oil cylinder group 11 by H mouthfuls, and servo-cylinder piston 11d is pushed to travel forward, solid therewith
Fixed servo-cylinder piston rod 11a travels forward together.Servo-cylinder piston rod 11a passes through aligning axis 8, aligning pin 9 and transmission
Mobile bar axis 2c links together in valve core rod group 2, and mobile bar axis 2c follows servo-cylinder piston rod 11a to move forward together,
Thrust bearing and transverse bearing are housed, under the action of bearing, transmission valve core rod 2a is moved forward simultaneously, is beaten on mobile bar axis 2c
The oil inlet and outlet of main control valve is opened, the high pressure oil of roll adjustment is entered by the oil inlet bump joint 12 in installation pressure-bearing shell group 4
Pressure-bearing shell 4d, high pressure sealing spacer ring 4f, oil distribution shaft 1, the hydraulic fluid port for supporting bushing 3 enter back into the inner hole oil of transmission valve core rod 2a
Mouthful, inner oil tube is then led to by main control valve spool, and high pressure oil is delivered to the positive vehicle chamber of propeller hub oil cylinder, piston is made in oil pressure
With lower driving propeller hub distance adjustor, realize that blade screw pitch is adjusted to positive vehicle direction.Propeller hub oil return is by outer oil pipe, through main control valve
Oil return opening enters the annular oil return opening between transmission valve core rod 2a and oil distribution shaft 1, enters back into the oil return opening of pressure-bearing shell 4d, adjusts
Hydraulic system is returned to by the fuel-displaced bump joint 13 in installation pressure-bearing shell group 4 away from low pressure oil, to complete positive vehicle roll adjustment.It moves
Thrust bearing and transverse bearing are housed, transmission valve core rod 2a follows oil distribution shaft 1 to rotate together on lever axis 2c.
When carrying out reversing roll adjustment, the pressure oil from proportioning valve enters oil distributor auxiliary servo oil cylinder group 11 by F mouthfuls
Ante-chamber pushes servo-cylinder piston 11d to move backward, and servo-cylinder piston rod 11a fixed thereto is moved backward together.Servo
Cylinder piston rod 11a is linked together by aligning axis 8, aligning pin 9 and mobile bar axis 2c in transmission valve core rod group 2, mobile bar
Axis 2c follows servo-cylinder piston rod 11a to move backward together, thrust bearing and transverse bearing is housed, in axis on mobile bar axis 2c
Under the action of holding, transmission valve core rod 2a is moved backward simultaneously, opens the oil inlet and outlet of main control valve, the high pressure oil of roll adjustment passes through
Oil inlet bump joint 12 in pressure-bearing shell group 4 is installed, into pressure-bearing shell 4d, high pressure sealing spacer ring 4f, oil distribution shaft 1, bearing
The hydraulic fluid port of bushing 3 enters back into the inner hole hydraulic fluid port of transmission valve core rod 2a, then leads to outer oil pipe by main control valve spool, and will
High pressure oil is delivered to propeller hub oil cylinder reversing chamber, and piston drives propeller hub distance adjustor under oil pressure effect, realizes blade screw pitch to
The adjustment of vehicle direction.The oil return that propeller hub generates enters transmission valve core rod 2a through main control valve oil return opening and matches oil by inner oil tube
Annular oil return opening between axis 1, enters back into the oil return opening of pressure-bearing shell 4d, and roll adjustment low pressure oil passes through in installation pressure-bearing shell group 4
Fuel-displaced bump joint 13 return to hydraulic system, thus complete reversing roll adjustment.
In fluting gland 2f in feedback rod 6e insertion transmission spool bar assembly 2, connected by screw and transmission valve core rod 2a
It connects, is moved together with transmission valve core rod 2a and draw pitch signal machinery, by feedback group, be converted to screw pitch signalling generator potentiometer
Angular signal, realize electric-control system closed-loop control.
After roll adjustment, surely away from state, piston is stablized in current location for position in main control valve holding, keeps blade screw pitch phase
To stabilization.
Claims (8)
1. a kind of oil distributor with auxiliary servo oil cylinder, including oil distribution shaft, transmission spool bar assembly, auxiliary servo cylinder component,
It is characterized by: the transmission spool bar assembly is socketed in oil distribution shaft by supporting bushing, and being driven spool bar assembly can edge
The main control valve for being driven valve core rod front end connection mechanical hydraulic servo device that bushing is mobile, in the transmission spool bar assembly is supported,
The servo-cylinder piston rod in transmission spool rod rear end connection auxiliary servo cylinder component in the transmission spool bar assembly, institute
The servo-cylinder connection proportioning valve in servo-cylinder component is stated, is passed in and out by the oil liquid of proportional valve control auxiliary servo oil cylinder, it is real
Existing servo-cylinder piston is moved forward and backward to control the oil inlet and outlet of the main control valve of mechanical hydraulic servo device, and main control valve controls paddle
Hub cylinder action, to realize that blade screw pitch adjusts.
2. the oil distributor according to claim 1 with auxiliary servo oil cylinder, it is characterised in that: the transmission spool bar assembly
In transmission spool rod rear end and auxiliary servo cylinder component in servo-cylinder piston rod be connected with feedback component, by feedback group
The axial position of part export transmission valve core rod, is converted to the potentiometric angular signal of screw pitch signalling generator, realizes electric-control system closed loop
Control.
3. the oil distributor according to claim 1 with auxiliary servo oil cylinder, it is characterised in that: the oil distribution shaft and bearing serve as a contrast
Set is fixedly connected integrally by internal screw thread positioning pin, and both ends are equipped with O-ring seal；The oil distribution shaft passes through pressure-bearing shell group
Part, and clearance seal pair is constituted with high pressure sealing ring, the low pressure sealing ring in pressure-bearing shell component.
4. the oil distributor according to claim 1 with auxiliary servo oil cylinder, it is characterised in that: the transmission spool bar assembly
Across bearing bushing, there is O-ring seal at both ends, constitute closing chamber.
5. the oil distributor according to claim 1 with auxiliary servo oil cylinder, it is characterised in that: in the transmission valve core rod group
Mobile bar axis connect by thrust bearing and transverse bearing with transmission valve core rod, so that transmission valve core rod is passed through thrust bearing and diameter
It can rotate, and can move linearly in bearing bush hole with oil distribution shaft to bearing.
6. the oil distributor according to claim 5 with auxiliary servo oil cylinder, it is characterised in that: the transmission spool bar assembly
Middle mobile bar axis and servo-cylinder piston rod in auxiliary servo cylinder component by aligning axis, aligning pin connection together with.
7. the oil distributor according to claim 1 with auxiliary servo oil cylinder, it is characterised in that: anti-in the feedback component
Feedback annular space covers on oil distribution shaft, in the fluting gland in the feedback rod insertion transmission spool bar assembly, and by screw and passes
The connection of movable valve plug bar；The feedback rod is fixedly connected with feedback loop by screw；Connected in the groove of the feedback loop by sliding block
Fork body is connect, pitches and is socketed rocker arm on body, forms transmission mechanism.
8. the oil distributor according to claim 1 with auxiliary servo oil cylinder, it is characterised in that: the servo-cylinder piston peace
On servo-cylinder piston rod, a movement mechanism is constituted, the movement of servo-cylinder piston can be switched to be driven valve core rod
Roll adjustment it is mobile；O-ring seal, servo-cylinder piston and servo oil are housed between the servo-cylinder piston rod and servo-cylinder body
O-ring seal is respectively mounted between cylinder body, servo-cylinder piston rod；Servo-cylinder lid, mating surface are screwed on servo-cylinder body
Between equipped with O-ring seal seal；Screw hole and the hole with seal groove are provided among the servo-cylinder lid, anti-rotation screw rod passes through spiral shell
Hole, the hole on seal groove equipped with O-ring seal are threadedly coupled with rod end inner sleeve, move servo-cylinder piston rod can only not
It is able to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910752852.9A CN110395373A (en) | 2019-08-15 | 2019-08-15 | Oil distributor with auxiliary servo oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910752852.9A CN110395373A (en) | 2019-08-15 | 2019-08-15 | Oil distributor with auxiliary servo oil cylinder |
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| Publication Number | Publication Date |
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| CN110395373A true CN110395373A (en) | 2019-11-01 |
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ID=68328282
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| CN201910752852.9A Pending CN110395373A (en) | 2019-08-15 | 2019-08-15 | Oil distributor with auxiliary servo oil cylinder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504666A (en) * | 2020-12-18 | 2021-03-16 | 中国船舶重工集团公司第七0四研究所 | Device and method for testing rotating electrohydraulic servo loading reliability of controllable pitch propeller complete machine |
| CN113697076A (en) * | 2021-08-20 | 2021-11-26 | 中国船舶重工集团公司第七0四研究所 | High-precision open-loop pitch-adjusting propeller pitch position electro-hydraulic servo control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112504666A (en) * | 2020-12-18 | 2021-03-16 | 中国船舶重工集团公司第七0四研究所 | Device and method for testing rotating electrohydraulic servo loading reliability of controllable pitch propeller complete machine |
| CN112504666B (en) * | 2020-12-18 | 2024-03-01 | 中国船舶重工集团公司第七0四研究所 | Device and method for testing reliability of complete machine rotation electrohydraulic servo loading of controllable pitch propeller |
| CN113697076A (en) * | 2021-08-20 | 2021-11-26 | 中国船舶重工集团公司第七0四研究所 | High-precision open-loop pitch-adjusting propeller pitch position electro-hydraulic servo control system |
| CN113697076B (en) * | 2021-08-20 | 2023-06-02 | 中国船舶重工集团公司第七0四研究所 | High-precision open-loop adjustable pitch propeller pitch position electrohydraulic servo control system |
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