CN106402077B - Hydraulic actuator class output speed controlled hydraulic circuit system - Google Patents
Hydraulic actuator class output speed controlled hydraulic circuit system Download PDFInfo
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- CN106402077B CN106402077B CN201611078550.0A CN201611078550A CN106402077B CN 106402077 B CN106402077 B CN 106402077B CN 201611078550 A CN201611078550 A CN 201611078550A CN 106402077 B CN106402077 B CN 106402077B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2807—Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/004—Fluid pressure supply failure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/008—Valve failure
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Actuator (AREA)
Abstract
A kind of hydraulic actuator class output speed controlled hydraulic circuit system disclosed by the invention, it is desirable to provide a kind of simple in construction, reliable operation, the output speed of pressurized strut piston rod can be controlled to be allowed to the controlled hydraulic circuit system for meeting requirement.The technical scheme is that：Start cartridge module (4) is connected by hydraulic control one-way valve (3) in three position four-way electromagnetic valve (1) input, output end divides two-way respectively by speed control valves series in the bidirectional hydraulic lock (5) positioned at pressurized strut subassembly both sides；When the hydraulic oil source that hydraulic pump provides is communicated to the right or the left position of three position four-way electromagnetic valve, hydraulic oil reaches the left chamber or right chamber of pressurized strut by the hydraulic control one-way valve of the first flow speed control valve, the second flow speed control valve (6), bidirectional hydraulic lock, and driving pressurized strut piston rod (16) stretches out or retracted；Oil return is controlled by the first flow speed control valve, the second flow speed control valve to the movement velocity of hydraulic actuation cartridge module piston rod.
Description
Technical field
The hydraulic pressure retractable actuating cylinder component of power is provided for receiving/releasing the present invention relates to a kind of, and can reliably be parked in maintenance
The hydraulic actuator class output speed controlled hydraulic circuit system of position.
Background technology
Hydraulic actuator is a kind of middle hydraulic actuator of back meet an urgent need, including cylinder, lining, piston, rubber seal etc. zero
Part, pressurized strut are hydraulicdriven executive components, and pressure executive component is a kind of hydraulic pressure member to external world's acting in hydraulic system
Part, hydraulic energy is directly converted into mechanical energy by it.Hydraulic actuator is divided into two major classes, and one kind is rotary motion (such as hydraulic pressure
Motor), it is the Hydraulic Elements that hydraulic energy is converted into rotating mechanical energy, and another kind of is reciprocating motion type, wherein be divided into past again
It is the Hydraulic Elements that hydraulic energy is converted into straight reciprocating motion kinetic energy to linear motion type (such as pressurized strut), and past rereeling
The class of pendular motion type (oscillating cylinder) two.Pressurized strut is also known as hydraulic cylinder, is a kind of executive component common in Hydraulic Power Transmission System, is
For realizing operating mechanism's straight reciprocating motion or the energy conversion device less than 360 ° of oscillating motions.The basic composition of pressurized strut
Substantially it is made up of parts such as cylinder 14, piston, piston rod 16, end cap, sealing, inlet and outlet pipings.The operation principle of pressurized strut is
When cylinder is fixed, if the input service liquid-liquid pressure rise of cylinder left chamber, to when being enough to overcome extraneous load, piston is begun to
Move right.Piston is continuously moved with certain speed if continuously fluid is supplied.It can thus be appreciated that pressurized strut work
Physical essence be using fluid pressure come overcome load (including frictional force), utilize fluid flow maintain movement velocity.Hydraulic pressure
Pressurized strut (hydraulic cylinder) structure type has piston cylinder, plunger case and oscillating cylinder three major types.Piston-type hydraulic cylinder, dual-rod hydraulic cylinder,
Dual-rod hydraulic cylinder is the hydraulic cylinder that piston both ends all carry piston rod 16, and the former movable workbench scope is approximately equal to the effective row of piston
The three times of journey is usually used in middle-size and small-size equipment, and such as the lifting of pilot set, the moving range of the latter's workbench is only approximately equal to hydraulic pressure
Twice of cylinder stroke, it is usually used in the rotation of large scale equipment.Because the diameter of piston rod 16 at dual-rod hydraulic cylinder both ends is typically equal
, therefore the chamber effective area of left and right two is also equal.When distinguishing two chamber input pressures to the left and right and flow identical fluid, hydraulic pressure
The thrust and speed of the left and right both direction of cylinder are equal.Single-rod cylinder piston only has one end band piston rod 16, and it also has cylinder body to consolidate
Fixed and piston rod 16 fixes two kinds of forms.But their movable workbench scope is all approximately twice of piston effective travel.Single pole
Hydraulic cylinder is due to piston both ends effective area, therefore the pressure for working as oil suction chamber and oil back chamber is respectively that P, Pz input are left and right
The thrust of or so both directions and speed are different when the flow of two chambers is all q.Pressurized strut cylinder is built with active piston
And limiting piston, pressurized strut cylinder and limiting piston, active piston and obturage O-ring seal is housed between section, pressurized strut cylinder
Left side links together with obturaging section, and the right side of pressurized strut cylinder links together with tail-hood, pressurized strut cylinder, tail-hood, active
Piston, limiting piston and the chamber that pressurized strut is divided into three autonomous closures by section is obturaged, three nozzles difference on pressurized strut cylinder
Connected with the chamber of three autonomous closures, the piston rod 16 of limiting piston is stretched into the piston rod 16 of active piston.Pressurized strut and master
There is direct contact in machine operating mechanism, and for different machine and mechanism, pressurized strut has different purposes and job requirement.Cause
This, before pressurized strut is designed, it is necessary to performance analysis is carried out to whole hydraulic system, then selects structure class according to requirements
Type, its groundwork size is determined by loading condition, movement needs, range etc., carry out intensity, stability and buffering and test
Calculate, finally carry out structure design again.Because traditional pressurized strut is only used as hydraulicdriven executive component, without control work(
Can, it is impossible to control the output speed of piston rod 16, also do not have the requirement stopped in centre position, it is thus impossible to meet to use
It is required that.
The content of the invention
It is an object of the invention in place of overcome the deficiencies in the prior art, there is provided a kind of simple in construction, reliable operation, can control
The output speed of pressurized strut piston rod 16 processed is allowed to meet requirement, meanwhile, pressurized strut piston rod 16 can be made to rest on centre
Position, make it easier to use and safeguard the controlled hydraulic circuit system of folding and unfolding hydraulic actuation cartridge module.
The technical solution adopted for the present invention to solve the technical problems is：A kind of hydraulic actuator class output speed can draining
Circuit system is pressed, including：Pack up packed up with extended position with mechanical lock, put down and the band microswitch 12 of maintenance position, stretch out
Position microswitch 7, maintenance position microswitch 11, three position four-way electromagnetic valve 1, hydraulic control one-way valve 3, the first flow speed control valve 2, second
The hydraulic actuator of bidirectional hydraulic lock 5 and check valve 8 of the flow speed control valve 6 containing thermally safe valve, it is characterised in that：Three position four-way electromagnetic valve
1 input connects start cartridge module 4 by hydraulic control one-way valve 3, and its output end divides two-way to be gone here and there respectively by the first flow speed control valve 2,6
The bidirectional hydraulic lock 5 positioned at the both sides of pressurized strut subassembly 4 is coupled to, bridging is parallel with the input, output end in bidirectional hydraulic lock 5
Valve block assembly 26 in both ends, valve block assembly 26 control the output speed of pressurized strut on in-line；When the liquid that hydraulic pump provides
When force feed source is communicated to the right or the left position of three position four-way electromagnetic valve 1, hydraulic oil passes through the first flow speed control valve 2, the second speed governing
Valve 6, the hydraulic control one-way valve of bidirectional hydraulic lock 5 reach the left chamber or right chamber of pressurized strut, and driving pressurized strut piston rod 16 stretches out or contracted
Return, when pressurized strut piston rod 16 is stretched out or retracted in place or to centre position, three position four-way electromagnetic valve 1 is located at the centre of magnetic valve
Position, the one-way piston return being now arranged in hydraulic lock 5, the fluid of pressurized strut rodless cavity and rod chamber is closed,
Make pressurized strut in the presence of bidirectional hydraulic lock, hydraulic actuator piston rod 17 is fixed on stretching or retraction or middle maintenance position
Put；Oil return is controlled by the first flow speed control valve 2, the second flow speed control valve 6 to the movement velocity of hydraulic actuation cartridge module piston rod 16,
For bidirectional hydraulic lock 5 when unlocking, hydraulic oil enters pressurized strut retraction chamber through valve block assembly 26, promotes travelling piston to move to left pushing out card
Outside ring, meanwhile, hydraulic coupling overcomes spring force and compression spring, moves down its steel ball, releases travelling piston, and hydraulic coupling forces
Snap ring compression is reduced, and promotes snap ring to enter outer barrel diameter and reduces section, realizes the unlocking of retracted position.
The present invention has the advantages that compared to prior art.
It is simple in construction, reliable operation.The present invention is in the case where product overall structure is constant, using three position four-way electromagnetic valve
1 input connects start cartridge module 4 by hydraulic control one-way valve 3, and its output end divides two-way respectively by speed control valves series in position
Bidirectional hydraulic lock 5 in the both sides of start cartridge module 4, it is parallel with the input, output end in bidirectional hydraulic lock 5 and is connected across both ends
Valve block assembly 26；By increasing valve block assembly 26 on in-line, make pressurized strut output speed controllable.Meanwhile work as hydraulic actuation
When cylinder piston rod 16 is stretched out or retracted in place or to centre position, three position four-way electromagnetic valve 1 is located at the centre position of magnetic valve, this
When be arranged on one-way piston return in hydraulic lock 5, the fluid of pressurized strut rodless cavity and rod chamber is closed, so that making
Dynamic cylinder is fixed on stretching or retraction or middle maintenance position in the presence of bidirectional hydraulic lock, by hydraulic actuator piston rod 17,
Pressurized strut piston rod 16 can be made to rest on centre position, make it easier to use and safeguard.
The hydraulic actuation cartridge module of the present invention can be that offer power is packed up and put down to train of mechanism, while piston rod 16 can stop
Derivative limit on the left or on the right or the centre position of pressurized strut are stayed in, is easy to safeguard mechanism.
Brief description of the drawings
Fig. 1 is hydraulic actuator class output speed controlled hydraulic circuit system principle schematic of the present invention.
Fig. 2 is start cartridge module front view of the present invention.
Fig. 3 is start cartridge module vertical view cutaway drawing of the present invention.
Fig. 4 is the organigram of Fig. 1 valve block assemblies.
In figure：1 three position four-way electromagnetic valve, 2 first flow speed control valves, 3 hydraulic control one-way valves, 4 start cartridge modules, 5 bidirectional hydraulic locks,
6 second flow speed control valves, 7 extended position microswitches, 8 check valves, 9 emergent oil sources, 10 hydraulic pumps, 11 maintenance position microswitches,
12 retracted position microswitches, 13 ears joints, 14 cylinders, 15 valve block assembly mounting seats, 16 piston rods, 17 monaural joints, 18
Pressurized strut oil circuit hole, 19 pipe joints, retaining ring lock built in 20 pressurized struts, 21 valve block housings, 22 oil return ozzles, 23 oil-feed ozzles, 24
Connect pressurized strut ozzle, 25 emergent ozzles, 26 valve block assembly installation bolts.
The present invention is further illustrated with reference to the accompanying drawings and examples, but does not therefore limit the present invention to described reality
Apply among a scope.All these designs should be regarded as this technology disclosure of that and protection scope of the present invention.
Embodiment
Refering to Fig. 1.In embodiment described below, a kind of hydraulic actuator class output speed controlled hydraulic loop system
System, including：Pack up and pack up, put down and the band microswitch 12 of maintenance position, extended position fine motion with mechanical lock with extended position
Switch 7, maintenance position microswitch 11, three position four-way electromagnetic valve 1, hydraulic control one-way valve 3, the first flow speed control valve 2, the second flow speed control valve 6,
The hydraulic actuator of bidirectional hydraulic lock 5 and check valve 8 containing thermally safe valve, it is characterised in that：The input of three position four-way electromagnetic valve 1
Start cartridge module 4 is connected by hydraulic control one-way valve 3, its output end divides two-way respectively by the first flow speed control valve 2, the second flow speed control valve
6 are series at the bidirectional hydraulic lock 5 positioned at the both sides of pressurized strut subassembly 4, are parallel with the input, output end in bidirectional hydraulic lock 5
It is connected across the valve block assembly at both ends；When the hydraulic oil source that hydraulic pump provides is communicated to the right or the left side of three position four-way electromagnetic valve 1
During position, hydraulic oil reaches pressurized strut by the hydraulic control one-way valve of the first flow speed control valve 2, the second flow speed control valve 6, bidirectional hydraulic lock 5
Left chamber or right chamber, driving pressurized strut piston rod 16 stretch out or retracted；Oil return is by the first flow speed control valve 2, the second flow speed control valve 6 to hydraulic pressure
The movement velocity of start cartridge module piston rod 16 is controlled.
When hydraulic actuator piston rod 16 is stretched out or retracted in place or to centre position, three position four-way electromagnetic valve 1 is located at
The centre position of magnetic valve, the one-way piston return being now arranged in hydraulic lock 5, by pressurized strut rodless cavity and the oil of rod chamber
Liquid is closed so that pressurized strut is in the presence of bidirectional hydraulic lock, by hydraulic actuator piston rod 16 be fixed on stretching or
Retraction or middle maintenance position.When hydraulic pump or magnetic valve break down, oil sources 9 of meeting an urgent need is by connecting hydraulic actuator 4
Check valve 8 directly arrives the right chamber of pressurized strut, pressurized strut piston rod 16 is retracted；Emergent oil sources 9 opens connection hydraulic actuation simultaneously
The hydraulic control one-way valve 3 of 4 left chambers of cylinder, connects oil return of the left chamber of hydraulic actuator 4 directly with hydraulic pump 10.
When hydraulic pump 10 on machine or the grade of three position four-way electromagnetic valve 1 break down, oil sources 9 of meeting an urgent need is direct by check valve 8
To the right chamber of pressurized strut, pressurized strut piston rod 16 is set to retract；Emergent oil sources 9 opens hydraulic control one-way valve 3 simultaneously, makes a left side for pressurized strut
Oil return of the chamber directly with hydraulic pump 10 connects.
Chamber is stretched out when hydraulic oil enters pressurized strut through valve block assembly 26, promotes piston rod 16 to move right, built-in retaining ring lock
20 move right simultaneously, and when snap ring is moved at outer barrel inner surface diameter increase, snap ring is extensive because the spring tension of itself opens
Free uncompressed state is arrived again, hydraulic oil continues to press on travelling piston and moved to right, and then moves about in piston convex portion insertion snap ring internal diameter,
Snap ring is prevented to shrink.Meanwhile steel ball is moved into travelling piston left end groove from middle position state, retaining spring return make its two sleeve it
Between distance reduce, also promote steel ball to rise in hole simultaneously and withstand steel ball and do not fall, to realize locking for extended position.This
When, extended position microswitch 7 is touched, and traffic light system is to stretch out in place on aircraft.
For bidirectional hydraulic lock 5 when unlocking, hydraulic oil enters pressurized strut retraction chamber through valve block, promotes travelling piston to move to left first
Release outside snap ring, meanwhile, hydraulic coupling overcomes spring force and compression spring, moves down its steel ball, travelling so as to smoothly release
Piston, then, hydraulic coupling force snap ring compression to be reduced, and promote snap ring to enter outer barrel diameter and reduce section, to realize retracted position
Unlocking.Now, retracted position microswitch 12 is touched, and traffic light system is to retract in place on aircraft.Piston rod 16 is retracted
When unlocking, lock mode in contrast.
When maintenance position microswitch 11 stretches out or be retracted into maintenance position by pressurized strut piston rod 16, pass through piston rod 16
When striking gear on component toggles it to maintenance position, it is maintenance position to make traffic light system on aircraft, is controlled by magnetic valve
Whether system stops in maintenance position.
Refering to Fig. 2-Fig. 3.Whole start cartridge module is double by 11 maintenance position microswitches 12, retracted position microswitch
Terminal lug 13, cylinder 14, valve block assembly mounting seat 15, piston rod 16, monaural joint 17, pressurized strut oil circuit hole 18, pipe joint
19, the grade of retaining ring lock 20 parts built in pressurized strut form, wherein by ears joint 13 and monaural joint 17 with carrying out machine on machine
Tool connects, by maintenance position microswitch 11, the retraction maintenance position microswitch 11 of retracted position microswitch 12 with machine
It is electrically connected.To make whole hydraulic actuator class output speed controlled hydraulic circuit system simple in construction, in hydraulic actuation
Valve block assembly mounting seat 15 is reserved with cylinder.
Refering to Fig. 4.To make, hydraulic actuator class output speed controlled hydraulic circuit system is simple in construction, arranges more adduction
Reason, reduce hydraulic pipe, increase reliability, by three position four-way electromagnetic valve 1, flow speed control valve 2, hydraulic control one-way valve 3, start cartridge module 4,
Bidirectional hydraulic lock 5 and flow speed control valve 6 are all put together at formation valve block assembly on valve block housing 21, meanwhile, to make valve block assembly
Can conveniently it be connected with start cartridge module, hydraulic actuator class output speed controlled hydraulic circuit system hydraulic interface is placed on valve block
On component, and oil return pipe mouth 22 is connected by airplane Hydraulic Tube, oil-feed ozzle 23, ozzle 25 of meeting an urgent need, connect pressurized strut ozzle 24
It is attached by conduit and pressurized strut pipe joint 19, whole valve block assembly is fixed on start by the installation bolt of valve block assembly 26
Cartridge module valve block assembly mounting seat 15, by oil return ozzle 22, oil-feed ozzle 23, connects pressurized strut ozzle 24, ozzle 25 of meeting an urgent need, valve block
The installation bolt of component 26 is also all concentrated on valve block assembly.
Claims (9)
1. a kind of hydraulic actuator class output speed controlled hydraulic circuit system, including：Pack up and received with extended position band mechanical lock
Rise, put down and the band microswitch of maintenance position（12、7、11）, three position four-way electromagnetic valve（1）, hydraulic control one-way valve（3）, flow speed control valve
（2、6）, bidirectional hydraulic lock containing thermally safe valve（5）And check valve（8）Hydraulic actuator, it is characterised in that：3-position 4-way electricity
Magnet valve（1）Input passes through hydraulic control one-way valve（3）Connect start cartridge module（4）, its output end divides two-way to pass through speed governing respectively
Valve（2、6）It is series at and is located at pressurized strut subassembly（4）The bidirectional hydraulic lock on both sides（5）, and in bidirectional hydraulic lock（5）Input,
The valve block assembly for being connected across both ends is parallel with output end（2、6）；When the hydraulic oil source that hydraulic pump provides is communicated to 3-position 4-way
Magnetic valve（1）The right or during left position, hydraulic oil passes through the first flow speed control valve（2）, the second flow speed control valve（6）, bidirectional hydraulic lock
（5）Hydraulic control one-way valve reach pressurized strut left chamber or right chamber, drive pressurized strut piston rod（16）Stretch out or retract, work as pressurized strut
Piston rod（16）When stretching out or retracting in place or to centre position, three position four-way electromagnetic valve（1）Positioned at the centre position of magnetic valve,
Now it is arranged on hydraulic lock（5）Interior one-way piston return, the fluid of pressurized strut rodless cavity and rod chamber is closed, makes work
Dynamic cylinder is in the presence of bidirectional hydraulic lock, by hydraulic actuator piston rod（17）It is fixed on stretching or retraction or middle maintenance position
Put；Oil return passes through the first flow speed control valve（2）, the second flow speed control valve（6）To hydraulic actuation cartridge module piston rod（16）Movement velocity enter
Row control, bidirectional hydraulic lock（5）When unlocking, hydraulic oil is through valve block assembly（26）Into pressurized strut retraction chamber, travelling live is promoted
Plug, which moves to left, to be released outside snap ring, meanwhile, hydraulic coupling overcomes spring force and compression spring, moves down its steel ball, releases travelling live
Plug, hydraulic coupling force snap ring compression to be reduced, and promote snap ring to enter outer barrel diameter and reduce section, realize the unlocking of retracted position.
2. such as the above-mentioned hydraulic actuator class output speed controlled hydraulic circuit system of claim 1, it is characterised in that：Work as high pressure
Oil is through valve block assembly（26）Chamber is stretched out into pressurized strut, promotes piston rod（16）When stretching out or retracting in place or to centre position,
Three position four-way electromagnetic valve（1）Positioned at the centre position of magnetic valve, hydraulic lock is now arranged on（5）Interior one-way piston return, will
The fluid of pressurized strut rodless cavity and rod chamber is closed, so that pressurized strut makees hydraulic pressure in the presence of bidirectional hydraulic lock
Dynamic cylinder piston rod（16）It is fixed on stretching or retraction or middle maintenance position.
3. such as the above-mentioned hydraulic actuator class output speed controlled hydraulic circuit system of claim 1, it is characterised in that：Work as hydraulic pressure
When pump or magnetic valve break down, oil sources of meeting an urgent need（9）By connecting hydraulic actuator（4）Check valve（8）Directly arrive pressurized strut
Right chamber, make pressurized strut piston rod（16）Retract；Emergent oil sources simultaneously（9）Open connection hydraulic actuator（4）The hydraulic control of left chamber
Check valve（3）, make hydraulic actuator（4）Left chamber directly and hydraulic pump（10）Oil return connection.
4. such as the above-mentioned hydraulic actuator class output speed controlled hydraulic circuit system of claim 1, it is characterised in that：When on machine
Hydraulic pump（10）Or three position four-way electromagnetic valve（1）During failure, oil sources of meeting an urgent need（9）Pass through check valve（8）Directly arrive pressurized strut
Right chamber, make pressurized strut piston rod（16）Retract；Emergent oil sources simultaneously（9）Open hydraulic control one-way valve（3）, make the left chamber of pressurized strut
Directly and hydraulic pump（10）Oil return connect.
5. such as the above-mentioned hydraulic actuator class output speed controlled hydraulic circuit system of claim 1, it is characterised in that：In hydraulic pressure
Valve block assembly mounting seat is reserved with pressurized strut（15）.
6. such as the above-mentioned hydraulic actuator class output speed controlled hydraulic circuit system of claim 1, it is characterised in that：Three four
Three-way electromagnetic valve（1）, flow speed control valve（2）, hydraulic control one-way valve（3）, start cartridge module（4）, bidirectional hydraulic lock（5）And flow speed control valve（6）Entirely
Portion is put together at valve block housing（21）Upper formation valve block assembly（26）.
7. such as the above-mentioned hydraulic actuator class output speed controlled hydraulic circuit system of claim 1, it is characterised in that：Hydraulic pressure is made
Dynamic cylinder class output speed controlled hydraulic circuit system hydraulic interface is placed on valve block assembly（26）On, and pass through airplane Hydraulic Tube
Connect oil return pipe mouth（22）, oil-feed ozzle（23）, ozzle of meeting an urgent need（25）, connect pressurized strut ozzle（24）Pass through conduit and start bobbin
Joint（19）It is attached, whole valve block assembly passes through valve block assembly（26）Installation bolt is fixed on start cartridge module valve block assembly
Mounting seat（15）, oil return ozzle（22）, oil-feed ozzle（23）, connect pressurized strut ozzle（24）, ozzle of meeting an urgent need（25）, valve block assembly
（26）Installation bolt is also all concentrated on valve block assembly.
8. such as the above-mentioned hydraulic actuator class output speed controlled hydraulic circuit system of claim 1, it is characterised in that：Work as start
Cylinder stretches out chamber and promotes piston rod（16）Move right, built-in retaining ring lock（20）Move right simultaneously, when snap ring is moved in outer barrel
When at surface diameter increase, snap ring returns to free uncompressed state, hydraulic oil continues to press on because the spring tension of itself opens
Travelling piston moves to right, and then moves about in piston convex portion insertion snap ring internal diameter, prevents snap ring and shrink, meanwhile, steel ball is from middle position state
Move into travelling piston left end groove, distance reduces between retaining spring return makes its two sleeve, also promotes steel ball to rise to simultaneously
In hole and withstand steel ball and do not fall, to realize locking for extended position, now, extended position microswitch（7）It is touched.
9. such as the above-mentioned hydraulic actuator class output speed controlled hydraulic circuit system of claim 1, it is characterised in that：Two-way liquid
Pressure lock works as maintenance position microswitch（11）By pressurized strut piston rod（16）Stretch out or be retracted into maintenance position, pass through piston rod
（16）When striking gear on component toggles it to maintenance position, control whether to stop in maintenance position by magnetic valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611078550.0A CN106402077B (en) | 2016-11-29 | 2016-11-29 | Hydraulic actuator class output speed controlled hydraulic circuit system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611078550.0A CN106402077B (en) | 2016-11-29 | 2016-11-29 | Hydraulic actuator class output speed controlled hydraulic circuit system |
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| CN106402077B true CN106402077B (en) | 2018-01-09 |
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| CN106402077A (en) | 2017-02-15 |
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