CN107882802A - A kind of three-level Erecting System - Google Patents
A kind of three-level Erecting System Download PDFInfo
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- CN107882802A CN107882802A CN201710865165.9A CN201710865165A CN107882802A CN 107882802 A CN107882802 A CN 107882802A CN 201710865165 A CN201710865165 A CN 201710865165A CN 107882802 A CN107882802 A CN 107882802A
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- Prior art keywords
- pressure
- branch road
- auxiliary power
- power branch
- hydraulic cylinder
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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
-
- 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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G5/00—Elevating or traversing control systems for guns
- F41G5/04—Elevating or traversing control systems for guns using hydraulic means for remote control
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40576—Assemblies of multiple valves
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/625—Accumulators
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7057—Linear output members being of the telescopic type
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/755—Control of acceleration or deceleration of the output member
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/765—Control of position or angle of the output member
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/86—Control during or prevention of abnormal conditions
Abstract
The present invention relates to a kind of three-level Erecting System, perpendicular technical field is belonged to, has solved the problems, such as that Erecting System control accuracy of the prior art is low, stability is poor, plays vertical arm and be well over turning up a little.It includes oil supply unit, three-level hydraulic cylinder, active force branch road and three auxiliary power branch roads；High-pressure hydraulic cylinder is connected by active force branch road and high pressure auxiliary power branch road with oil supply unit；The stretching of high-pressure hydraulic cylinder and middle pressure cylinder is first promoted by corresponding auxiliary power branch road, when close to this grade of hydraulic cylinder range, switches to active force branch road；The stretching of low-pressure hydraulic cylinder is first promoted by corresponding auxiliary power branch road, is being played when playing vertical angle degree close to 90 ° of vertical arm, is being switched to the promotion of active force branch road so that the vertical angle degree that rises for playing vertical arm reaches 90 °, has completed perpendicular.Three-level Erecting System provided by the invention can be used for perpendicular process.
Description
Technical field
The present invention relates to one kind to play perpendicular technology, more particularly to a kind of three-level of more accumulator segmentation power-assisted three-level cylinders plays perpendicular system
System.
Background technology
The perpendicular time effects that rise of the large erecting equipments such as missile truck the quick-reaction capability of guided missile, and then affect
The survival ability of guided missile.
In the prior art, Erecting System generally includes single-rod cylinder, an active force branch road and an auxiliary power branch
Road, the stretching of single-rod cylinder are first promoted by auxiliary power branch road, are being played when playing vertical angle degree close to 90 ° of vertical arm, are being switched to master
Power branch road promotes so that the vertical angle degree that rises of a vertical arm reaches 90 °, has completed to erect, and the time is erected so as to lift rising for erecting equipment.
But those skilled in the art do not recognize the deficiency of above-mentioned Erecting System for a long time, inventor passes through
Careful research finds that a perpendicular speed for above-mentioned Erecting System is non-adjustable, and a perpendicular speed is higher always, has caused the control of perpendicular process
Precision processed is low, and Erecting System stability is poor.Simultaneously as the reason for playing high perpendicular speed and inertia, plays vertical arm and is playing perpendicular process
In be well over turning up a little, even resulted in perpendicular failure.
The content of the invention
In view of above-mentioned analysis, the present invention is intended to provide a kind of three-level Erecting System, solves of the prior art and erects
System control accuracy is low, stability is poor, plays a vertical arm the problem of being well over turning up.
The purpose of the present invention is mainly achieved through the following technical solutions：
The invention provides a kind of three-level Erecting System, including oil supply unit, three-level hydraulic cylinder and master parallel with one another
Power branch road and three auxiliary power branch roads；Three auxiliary power branch roads are divided into high pressure auxiliary power branch road, middle pressure auxiliary power
Branch road and low pressure auxiliary power branch road；Three-level hydraulic cylinder is divided into high-pressure hydraulic cylinder, middle pressure cylinder and low-pressure hydraulic cylinder；High pressure liquid
Cylinder pressure is connected by active force branch road and high pressure auxiliary power branch road with oil supply unit respectively；Middle pressure cylinder passes through actively respectively
Power branch road and middle pressure auxiliary power branch road connect with oil supply unit；Low-pressure hydraulic cylinder is aided in by active force branch road and low pressure respectively
Power branch road connects with oil supply unit；The stretching of high-pressure hydraulic cylinder and middle pressure cylinder is first pushed away by corresponding auxiliary power branch road
It is dynamic, when close to this grade of hydraulic cylinder range, switch to active force branch road；The stretching of low-pressure hydraulic cylinder is first by corresponding auxiliary
Power branch road promotes, and is playing when playing vertical angle degree close to 90 ° of vertical arm, is switching to the promotion of active force branch road so that is playing rising for vertical arm
Vertical angle degree reaches 90 °, has completed perpendicular.
Further, rise vertical arm rise it is perpendicular during, first, high pressure auxiliary power branch road is opened, release liquid oil, is promoted
The high-pressure hydraulic cylinder communicated therewith is stretched out, and when high-pressure hydraulic cylinder is close to range, high pressure auxiliary power branch road is closed, actively
Power branch road is opened, release liquid oil, promotes high-pressure hydraulic cylinder to range；Then, middle pressure auxiliary power branch road opening, release liquid
Oil, the middle pressure cylinder communicated therewith is promoted to stretch out, when middle pressure cylinder is close to range, middle pressure auxiliary power branch road closes
Close, active force branch road is opened, release liquid oil, and pressure cylinder is to range in promotion；Finally, low pressure auxiliary power branch road is beaten
Open, release liquid oil, promote the low-pressure hydraulic cylinder communicated therewith to stretch out, playing when playing vertical angle degree close to 90 ° of vertical arm, low pressure auxiliary
Power branch road is closed, and active force branch road is opened, release liquid oil, promotes low-pressure hydraulic cylinder to stretch out so that plays vertical arm plays vertical angle degree
90 ° are reached, has been completed perpendicular.
Further, auxiliary power branch road includes switch valve, accumulator and the proportional flow control valve being sequentially connected；Switch valve
Liquid-inlet connects with the liquid outlet of oil supply unit, the oil-feed of the liquid outlet of proportional flow control valve and corresponding one-stage hydraulic cylinder
Oil communication.
Further, during high-pressure hydraulic cylinder stretching, the switch valve and proportional flow control valve of high pressure auxiliary power branch road
Open, the accumulator release liquid oil of high pressure auxiliary power branch road, promote the high-pressure hydraulic cylinder communicated therewith to stretch out；Monitor in real time
The acceleration of vertical arm, proportional flow control valve adjust the defeated of the accumulator of high pressure auxiliary power branch road according to default unlatching curve in real time
Outflow so that play the acceleration of vertical arm in the range of restriction；When monitoring high-pressure hydraulic cylinder close to range, high pressure
The switch valve and proportional flow control valve of auxiliary power branch road are closed, and active force branch road is opened, release liquid oil, promotes high-pressure hydraulic cylinder extremely
Range.
Further, during the stretching of middle pressure cylinder, the switch valve and proportional flow control valve of middle pressure auxiliary power branch road
Open, the accumulator release liquid oil of middle pressure auxiliary power branch road, promote the middle pressure cylinder communicated therewith to stretch out；Monitor in real time
The acceleration of vertical arm, proportional flow control valve are defeated according to the accumulator that auxiliary power branch road is pressed in default unlatching curve regulation in real time
Outflow so that play the acceleration of vertical arm in the range of restriction；When monitoring middle pressure cylinder close to range, middle pressure
The switch valve and proportional flow control valve of auxiliary power branch road are closed, and active force branch road is opened, release liquid oil, and pressure cylinder is extremely in promotion
Range.
Further, during the stretching of low-pressure hydraulic cylinder, the switch valve and proportional flow control valve of low pressure auxiliary power branch road
Open, the accumulator release liquid oil of low pressure auxiliary power branch road, promote the low-pressure hydraulic cylinder communicated therewith to stretch out；Monitor in real time
The acceleration of vertical arm, proportional flow control valve adjust the defeated of the accumulator of low pressure auxiliary power branch road according to default unlatching curve in real time
Outflow so that play the acceleration of vertical arm in the range of restriction；It is low when having monitored the angle of vertical arm close to close to 90 °
The switch valve and proportional flow control valve for pressing auxiliary power branch road are closed, and active force branch road is opened, release liquid oil, promotion and low-pressure hydraulic
Cylinder stretches out so that the vertical angle degree that rises for playing vertical arm reaches 90 °, has completed perpendicular.
Further, active force branch road includes proportional direction valve, oil-feed balanced valve and balancing oil valve；High-pressure hydraulic cylinder,
The oil-feed oil circuit of middle pressure cylinder and low-pressure hydraulic cylinder passes through oil-feed balanced valve and the liquid of proportional direction valve and oil supply unit
Outlet；The oil return circuit of high-pressure hydraulic cylinder, middle pressure cylinder and low-pressure hydraulic cylinder passes through balancing oil valve and ratio side
Connected to valve with external fuel tank.
Further, during active force branch road release liquid oil, liquid oil passing ratio direction valve in oil supply unit and
Oil-feed balanced valve enters the oil suction chamber of high-pressure hydraulic cylinder, middle pressure cylinder or low-pressure hydraulic cylinder, high-pressure hydraulic cylinder, middle pressure cylinder
Or the liquid oil in the oil back chamber of low-pressure hydraulic cylinder flow to external fuel tank by balancing oil valve and proportional direction valve.
Further, oil supply unit and active force branch road, high pressure auxiliary power branch road, middle pressure auxiliary power branch road and low pressure
The pipeline of auxiliary power branch road connection is provided with proportional pressure control valve.
Further, filled to high pressure auxiliary power branch road, middle pressure auxiliary power branch road and low pressure auxiliary power branch road
During liquid, first, the preset pressure of setting ratio overflow valve is the preset pressure of high pressure auxiliary power branch road, and it is auxiliary to open high pressure
Switch valve in power-assist power branch road, opens oil supply unit, and liquid oil is filled with high pressure auxiliary power branch road；When high pressure auxiliary power branch road
Pressure reach the preset pressure of proportional pressure control valve after, liquid oil flow to external fuel tank from proportional pressure control valve；High pressure auxiliary power branch
Switch valve in road so that the pressure of high pressure auxiliary power branch road maintains the preset pressure of high pressure auxiliary power branch road, completes
The filling process of high pressure auxiliary power branch road；Then, the preset pressure of setting ratio overflow valve is middle pressure auxiliary power branch road
Preset pressure, the switch valve in auxiliary power branch road is pressed in opening, open oil supply unit, liquid oil is filled with middle pressure auxiliary power branch
Road；After the pressure of central pressure auxiliary power branch road reaches the preset pressure of proportional pressure control valve, liquid oil flow to outer from proportional pressure control valve
Portion's fuel tank；Switch valve in middle pressure auxiliary power branch road so that it is dynamic that the pressure of middle pressure auxiliary power branch road maintains middle pressure auxiliary
The preset pressure of power branch road, the filling process of auxiliary power branch road is pressed in completion；Finally, the preset pressure of setting ratio overflow valve
For the preset pressure of low pressure auxiliary power branch road, the switch valve in low pressure auxiliary power branch road is opened, opens oil supply unit, liquid oil
It is filled with low pressure auxiliary power branch road；After the pressure of low pressure auxiliary power branch road reaches the preset pressure of proportional pressure control valve, liquid oil
External fuel tank is flow to from proportional pressure control valve；Switch valve in low pressure auxiliary power branch road so that the pressure of low pressure auxiliary power branch road
Power maintains the preset pressure of low pressure auxiliary power branch road, completes the filling process of low pressure auxiliary power branch road.
Compared with prior art, the present invention has the beneficial effect that：
A) active force branch road parallel with one another and three auxiliary power branch are provided with three-level Erecting System provided by the invention
Road, by having promoted vertical arm quickly to lift using parallel auxiliary power branch road during the stretching of every one-stage hydraulic cylinder,
So as to significantly shorten the perpendicular time, significantly improve Erecting System plays perpendicular speed, and further improves the fast of missile truck
Fast respond and survival ability.
B) three-level Erecting System provided by the invention is when close to the range of every one-stage hydraulic cylinder, from auxiliary power branch
Road switches to active force branch road, reduces the stretching speed of this grade of hydraulic cylinder so that and this grade of hydraulic cylinder slowly extend out to range,
Fast Collision occurs so as to avoid when multistage hydraulic cylinder reaches range, significantly reduces every one-stage hydraulic cylinder and is changing a grade process
In impact, ensure that the stability of three-level Erecting System.
C) three-level Erecting System provided by the invention is playing perpendicular initial stage, and high-pressure hydraulic cylinder is promoted by high pressure auxiliary power branch road
Stretch out, play perpendicular mid-term, pressure cylinder stretches out in being promoted by middle pressure auxiliary power branch road, plays the perpendicular later stage, is propped up by low pressure auxiliary power
Road promotes low-pressure hydraulic cylinder to stretch out so that plays a perpendicular speed at perpendicular initial stage, plays for playing perpendicular speed and playing the perpendicular later stage of perpendicular mid-term
Perpendicular decrease of speed, on the premise of having ensured that the perpendicular time is shorter, reasonable distribution system pressure and a perpendicular speed, reduce system energy
Consumption, and the accurate control of perpendicular process can have been realized.
D) three-level Erecting System provided by the invention is playing the perpendicular later stage, and low-pressure hydraulic is promoted using low pressure auxiliary power branch road
Cylinder stretches out, and can suitably reduce perpendicular speed, avoid perpendicular excessive velocities from exceeding vertical arm and turned up a little.
Other features and advantages of the present invention will illustrate in the following description, also, partial become from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
Specifically noted structure is realized and obtained in book, claims and accompanying drawing.
Brief description of the drawings
Accompanying drawing is only used for showing the purpose of specific embodiment, and is not considered as limitation of the present invention, in whole accompanying drawing
In, identical reference symbol represents identical part.
Fig. 1 is a kind of structural representation of three-level Erecting System.
Reference：
1- three-level hydraulic cylinders；2- high-voltage switch gear valves；3- high pressure accumulators；4- high-voltage ratio flow valves；5- Medium voltage switch or circuit breaker valves；
6- intermediate-pressure accumulators；Proportional flow control valve is pressed in 7-；8- low tension switch valves；9- low pressure accumulators；10- low pressure proportional flow control valves；11-
Proportional direction valve；12- oil-feed balanced valves；13- balancing oil valves；14- high pressure filters；15- oil pumps；16- motors；17- ratios
Overflow valve；18- pressure gauges；19- oil return switch valves.
Embodiment
The preferred embodiments of the present invention are specifically described below in conjunction with the accompanying drawings, wherein, accompanying drawing forms the application part, and
It is used for the principle for explaining the present invention together with embodiments of the present invention.
Embodiment one
Present embodiments provide a kind of three-level Erecting System, as shown in figure 1, including oil supply unit, three-level hydraulic cylinder 1 and
Active force branch road parallel with one another and three auxiliary power branch roads；The oil-feed oil circuit of every one-stage hydraulic cylinder of three-level hydraulic cylinder 1 is equal
By active force branch road and wherein, an auxiliary power branch road connects with the liquid outlet of oil supply unit respectively；Three-level hydraulic cylinder 1
Oil return circuit connected with external fuel tank；It is dynamic that three auxiliary power branch roads can be divided into high pressure auxiliary power branch road, middle pressure auxiliary
Power branch road and low pressure auxiliary power branch road, correspondingly, three-level hydraulic cylinder 1 can also be divided into high-pressure hydraulic cylinder, middle pressure cylinder and
Low-pressure hydraulic cylinder；High pressure auxiliary power branch road connects with high-pressure hydraulic cylinder, and middle pressure auxiliary power branch road connects with middle pressure cylinder,
Low pressure auxiliary power branch road connects with low-pressure hydraulic cylinder.
During implementation, high pressure auxiliary power branch road is opened, and quick release liquid oil, is promoted the high-pressure hydraulic cylinder communicated therewith, is pushed away
The dynamic high-pressure hydraulic cylinder communicated therewith is stretched out, and will play vertical arm fast lifting to certain angle；In high-pressure hydraulic cylinder close to maximum row
Cheng Shi, high pressure auxiliary power branch road are closed, and active force branch road is opened, and is changed from high pressure auxiliary power branch road to active force branch road,
By active force branch road release liquid oil, promote high-pressure hydraulic cylinder to be slowly reached range, complete the extending action of high-pressure hydraulic cylinder；
Then, active force branch road is closed, and middle pressure auxiliary power branch road is opened, and middle pressure auxiliary power branch road is switched to from active force branch road,
And carry out the process similar to pressure cylinder in promotion so that middle pressure cylinder is slowly reached range, hydraulic fluid pressure in completion
The extending action of cylinder；Finally, active force branch road is closed, and low pressure auxiliary power branch road is opened, and low pressure is switched to from active force branch road
Auxiliary power branch road, when playing vertical angle degree close to 90 ° of vertical arm being played, low pressure auxiliary power branch road is closed, and active force branch road is opened,
Changed from low pressure auxiliary power branch road to active force branch road, by active force branch road release liquid oil, finally vertical arm is promoted to
90 °, complete perpendicular.
Compared with prior art, the present embodiment provide three-level Erecting System in be provided with active force branch road parallel with one another and
Three auxiliary power branch roads, by being promoted during the stretching of every one-stage hydraulic cylinder using parallel auxiliary power branch road
Vertical arm is quickly lifted, and so as to significantly shorten the perpendicular time, significantly improve Erecting System plays perpendicular speed, and further improves and lead
Play the quick-reaction capability and survival ability of car launcher.
Meanwhile perpendicular initial stage is played, and promote high-pressure hydraulic cylinder to stretch out by high pressure auxiliary power branch road, play perpendicular mid-term, it is auxiliary by middle pressure
Pressure cylinder stretches out during power-assist power branch road promotes, and plays the perpendicular later stage, promotes low-pressure hydraulic cylinder to stretch out by low pressure auxiliary power branch road, makes
A perpendicular speed at perpendicular initial stage must be played, play the perpendicular decrease of speed for playing perpendicular speed and playing the perpendicular later stage of perpendicular mid-term, when having ensured perpendicular
Between it is shorter on the premise of, reasonable distribution system pressure and play perpendicular speed, improve the control accuracy and stability of Erecting System, drop
The low energy consumption of Erecting System.The perpendicular later stage is being played, is promoting low-pressure hydraulic cylinder to stretch out using low pressure auxiliary power branch road, can be appropriate
Perpendicular speed has been reduced, has avoided perpendicular excessive velocities from exceeding vertical arm and has turned up a little.
Also, in the case of maximum total kilometres identical, compared to single-rod cylinder or two-stage hydraulic cylinder, three-level hydraulic cylinder
1 space-consuming is minimum, and the control accuracy of Erecting System is higher；Compared to hydraulic cylinder more than level Four, the knot of three-level hydraulic cylinder 1
Structure and control process are simpler, in summary, can be reduced using three-level hydraulic cylinder 1 on the basis of control accuracy is ensured
The space-consuming of Erecting System, simplify the internal structure and control process of Erecting System.
In addition, when close to the range of every one-stage hydraulic cylinder, active force branch road is switched to from auxiliary power branch road, is dropped
The stretching speed of low this grade of hydraulic cylinder so that this grade of hydraulic cylinder slowly extend out to range, so as to avoid three-level hydraulic cylinder 1
Fast Collision occurs when reaching range, significantly reduces impact of every one-stage hydraulic cylinder during level is changed, ensure that three-level
The stability of Erecting System.
It should be noted that so-called high pressure auxiliary power branch road, middle pressure auxiliary power branch road and low pressure auxiliary power branch road
In the height of pressure be relative value, that is to say, that in multiple auxiliary power branch roads, initial pressure highest auxiliary power branch
Road is properly termed as high pressure auxiliary power branch road, and the minimum auxiliary power branch road of initial pressure is properly termed as low pressure auxiliary power branch
Road, the auxiliary that initial pressure is between the pressure of high pressure auxiliary power branch road and the initial pressure of low pressure auxiliary power branch road are moved
Pressure auxiliary power branch road during power branch road is referred to as.
For the structure of auxiliary power branch road, exemplarily, it can include switch valve, accumulator and the ratio being sequentially connected
Example flow valve；The liquid-inlet of switch valve connects with the liquid outlet of oil supply unit, the liquid outlet and three-level of proportional flow control valve
The oil-feed oil communication of hydraulic cylinder 1.Wherein, switch valve can control the opening and closing of corresponding auxiliary power branch road；Accumulation of energy
Device is to store energy by liquid oil compression gas, with response is fast, zero noise, air cavity and oil pocket sealed reliable, size are small, again
Light, easy for installation, easy maintenance and topping up the advantages that facilitating are measured, it can instantaneously provide the liquid oil of larger flow and pressure, soon
Speed promotes corresponding one-stage hydraulic cylinder to stretch out；Proportional flow control valve can regulate and control the output flow of accumulator, and then control perpendicular speed
And acceleration, avoid the flow of liquid oil and pressure excessive and to produce instantaneous acceleration excessive, so as to avoid damage to guided missile.
It is understood that when three auxiliary power branch roads are divided into high pressure auxiliary power branch road, middle pressure auxiliary power branch road
During with low pressure auxiliary power branch road, high pressure auxiliary power branch road can include high-voltage switch gear valve 2, the high pressure accumulator being sequentially connected
3 and high-voltage ratio flow valve 4, middle pressure auxiliary power branch road can include Medium voltage switch or circuit breaker valve 5, the intermediate-pressure accumulator 6 being sequentially connected
With middle pressure proportional flow control valve 7, low pressure auxiliary power branch road can include low tension switch valve 8, the and of low pressure accumulator 9 being sequentially connected
Low pressure proportional flow control valve 10.
During high-pressure hydraulic cylinder stretching, high-voltage switch gear valve 2 and high-voltage ratio flow valve 4 are opened, and high pressure accumulator 3 is released
Tapping oil, the high-pressure hydraulic cylinder communicated therewith is promoted to stretch out；The acceleration of vertical arm, high-voltage ratio flow valve 4 have been monitored in real time
Adjust the output flow of high pressure accumulator 3 in real time according to default unlatching curve so that play scope of the acceleration in restriction of vertical arm
It is interior；When monitoring high-pressure hydraulic cylinder close to range, high-voltage switch gear valve 2 and high-voltage ratio flow valve 4 are closed, active force branch
Road is opened, release liquid oil, promotes high-pressure hydraulic cylinder to range.
During the stretching of middle pressure cylinder, Medium voltage switch or circuit breaker valve 5 and middle pressure proportional flow control valve 7 are opened, and intermediate-pressure accumulator 6 is released
Tapping oil, the middle pressure cylinder communicated therewith is promoted to stretch out；The acceleration of vertical arm, middle pressure proportional flow control valve 7 have been monitored in real time
Adjust the output flow of intermediate-pressure accumulator 6 in real time according to default unlatching curve so that play scope of the acceleration in restriction of vertical arm
It is interior；When monitoring middle pressure cylinder close to range, Medium voltage switch or circuit breaker valve 5 and middle pressure proportional flow control valve 7 are closed, active force branch
Road is opened, release liquid oil, and pressure cylinder is to range in promotion.
During the stretching of low-pressure hydraulic cylinder, low tension switch valve 8 and low pressure proportional flow control valve 10 are opened, low pressure accumulator 9
Release liquid oil, the low-pressure hydraulic cylinder communicated therewith is promoted to stretch out；The acceleration of vertical arm, low pressure proportional flow control valve 10 have been monitored in real time
Adjust the output flow of low pressure accumulator 9 in real time according to default unlatching curve so that play model of the acceleration in restriction of vertical arm
In enclosing；When having monitored the angle of vertical arm close to close to 90 °, low tension switch valve 8 and low pressure proportional flow control valve 10 are closed, actively
Power branch road is opened, release liquid oil, is promoted and is stretched out with low-pressure hydraulic cylinder so that the vertical angle degree that rises for playing vertical arm reaches 90 °, completes
It is perpendicular.
For the structure of active force branch road, exemplarily, it can include proportional direction valve 11, oil-feed balanced valve 12 and return
Oily balanced valve 13；The oil-feed oil circuit of high-pressure hydraulic cylinder, middle pressure cylinder and low-pressure hydraulic cylinder passes through oil-feed balanced valve 12 and ratio
Proportional direction valve 11 connects with the liquid outlet of oil supply unit；The oil return oil of high-pressure hydraulic cylinder, middle pressure cylinder and low-pressure hydraulic cylinder
Road is connected by balancing oil valve 13 and proportional direction valve 11 with external fuel tank.Wherein proportional direction valve 11 can control major-minor
The telescopic direction of the opening of power source, closing and three-level hydraulic jack 1, and can accurately control the oil inlet quantity of active force branch road with
And the stretching speed of three-level hydraulic cylinder 1, so as to optimize perpendicular track；Oil-feed balanced valve 12 and balancing oil valve 13 can be with balance weights
Power is loaded, and vertical arm can have been made to stop for a long time at an arbitrary position.
During active force branch road release liquid oil, liquid oil passing ratio direction valve 11 and oil-feed balance in oil supply unit
Valve 12 enters the oil suction chamber of high-pressure hydraulic cylinder, middle pressure cylinder or low-pressure hydraulic cylinder, high-pressure hydraulic cylinder, middle pressure cylinder or low pressure
Liquid oil in the oil back chamber of hydraulic cylinder flow to external fuel tank by balancing oil valve 13 and proportional direction valve 11.
In order to avoid the impurity in liquid oil pollutes proportional direction valve 11, height is provided between oil supply unit and proportional direction valve 11
Press through filter 14.Very sensitive to polluting in view of proportional direction valve 11, the impurity in liquid oil can reduce the control of proportional direction valve 11
Precision processed, or even lose proportional direction valve 11 effect of itself, the Set scale direction at the liquid-inlet of proportional direction valve 11
Valve 11.
For the structure of oil supply unit, exemplarily, it can include oil pump 15 (for example, quantitative gear pump) and be used for
The motor 16 of power is provided for oil pump 15；The liquid-inlet of oil pump 15 connects with external fuel tank, the liquid outlet difference of oil pump 15
Connected with active force branch road and auxiliary power branch road.Wherein, motor 16 can be connected by shaft coupling with oil pump 15, so as to drive
The fuel feeding of oil pump 15.
In order to prevent the liquid oil in active force branch road and auxiliary power branch road from flowing backward in oil pump 15, oil supply unit also includes
Check valve 16, the liquid outlet of oil pump 15 are connected by check valve 16 with active force branch road and auxiliary power branch road.Due to unidirectional
The flow direction of liquid is from oil pump 15 to active force branch road and auxiliary power branch road in valve 16, that is to say, that liquid oil can only be from
Oil pump 15 is injected into active force branch road and auxiliary power branch road, and can not flow backward to oil from active force branch road and auxiliary power branch road
In pump 15, so as to ensure that the pressure stability of active force branch road and auxiliary power branch road.
Because in the course of the work, the pressure of active force branch road and three auxiliary power branch roads is different, in filling process,
In order to adjust the pressure of active force branch road and three auxiliary power branch roads, oil supply unit and active force branch road, high pressure auxiliary power
Can be with Set scale overflow valve 17 on the pipeline that branch road, middle pressure auxiliary power branch road connect with low pressure auxiliary power branch road.Auxiliary
In the filling process of power-assist power branch road, by taking high pressure auxiliary power branch road as an example, high pressure auxiliary power branch road is opened, opens motor
16, certain pressure is poured into high pressure auxiliary power branch road for oil pump 15 and the liquid of flow is oily, the pressure in high pressure auxiliary power branch road
Power constantly raises, and after the pressure exceedes the preset pressure of proportional pressure control valve 17, the liquid oil exceeded can passing ratio overflow valve 17
External fuel tank is flow to, now, closes high pressure auxiliary power branch road so that the pressure of high pressure auxiliary power branch road is equal to proportional overflow
The preset pressure of valve 17, the filling process of other auxiliary branch is similarly.And for active force branch road, discharged in auxiliary power branch road
While liquid oil promotes the stretching of three-level hydraulic cylinder 1, oil pump 15 maintains constant rotational speed all the time, and passing ratio overflow valve 17 can make master
Power branch road maintains constant pressure all the time, when switching to active force branch road from auxiliary power branch road, maintains constant pressure
Active force branch road can provide the liquid oil with certain pressure in time and promote three-level hydraulic cylinder 1 slowly to stretch out so that auxiliary power
Branch road can link up well between switching to active force branch road.In addition, the setting of proportional pressure control valve 17 can also ensure
The pressure of three-level Erecting System is not exceeded, so as to ensure the security of system.
It should be noted that the quantity of proportional pressure control valve 17 can be multiple, active force branch road and multiple auxiliary power branch
One proportional pressure control valve 17 is set respectively on road, certainly, can be only actively in order to simplify the internal structure of three-level Erecting System
One proportional pressure control valve 17 is set on power branch road or one of auxiliary power branch road, due to active force branch road and multiple auxiliary
Communicated between power branch road, only set in three-level Erecting System a proportional pressure control valve 17 just can to active force branch road and
The pressure of three auxiliary power branch roads is adjusted.
In order to monitor the pressure in the pressure monitoring of the liquid outlet of oil pump 15 and active force branch road and auxiliary power branch road
Power, pressure gauge 18 can also be set on the pipeline that above-mentioned oil supply unit is connected with active force branch road and auxiliary power branch road.For
The quantity and arrangement and proportional pressure control valve 17 of pressure gauge 18 are essentially identical, do not repeat one by one herein.
In order to ensure that the oil return circuit of auxiliary power branch road three-level hydraulic cylinder 1 in quick Fuel injection system can be returned quickly
Oil, above-mentioned three-level Erecting System also include oil return branch road, and oil return branch road is provided with oil return switch valve 19；Three-level hydraulic cylinder 1 returns
Oil circuit is connected by oil return branch road with external fuel tank.When the quick fuel feeding of auxiliary power branch road, the oil return on oil return branch road is opened
Close valve 19 open so that the oil return circuit of three-level hydraulic cylinder 1 can quick oil return, when the slow fuel feeding of active force branch road, oil return
Oil return switch valve 19 on branch road, which is in, closes.
In practical application, three auxiliary power branch roads can be integrated on an integrated unit, by active force branch road, height
Filter 14, check valve 16, proportional pressure control valve 17 and pressure gauge 18 is pressed through to be integrated on another integrated unit.
Specifically, perpendicular method is played, it is necessary to explanation using above-mentioned three-level Erecting System, rise it is perpendicular before, own
Valve body and part be in closed mode, comprise the following steps：
Step S1：The perpendicular preparatory stage is played, because the topping up accumulation of energy process of auxiliary power branch road needs oil supply unit to participate in, because
This is needed from low pressure to high pressure respectively to three auxiliary power branch road topping ups, and topping up closes corresponding valve body after terminating, and is completed auxiliary
The topping up of power-assist power branch road, specifically, the pressure of proportional pressure control valve 17 is set to the preset pressure of low pressure accumulator 9, opened
Low tension switch valve 8, opens motor 16 and oil pump 15, liquid oil pour low pressure accumulator 9, when pressure reaches the pre- of low pressure accumulator 9
If pressure, proportional pressure control valve 17 is opened, and unnecessary liquid oil passing ratio overflow valve 17 flow to external fuel tank, closes low tension switch valve
8 so that the pressure of low pressure accumulator 9 maintains the preset pressure of low pressure accumulator 9；During the pressure of proportional pressure control valve 17 is set to
The preset pressure of accumulator 6 is pressed, opens Medium voltage switch or circuit breaker valve 5, liquid oil pours intermediate-pressure accumulator 6, when pressure reaches intermediate-pressure accumulator 6
Preset pressure, proportional pressure control valve 17 opens, and unnecessary liquid oil passing ratio overflow valve 17 flow to external fuel tank, is pressed off in closing
Close valve 5 so that the pressure of intermediate-pressure accumulator 6 maintains the preset pressure of intermediate-pressure accumulator 6；The pressure of proportional pressure control valve 17 is set
For the preset pressure of high pressure accumulator 3, high-voltage switch gear valve 2 is opened, liquid oil pours high pressure accumulator 3, is stored when pressure reaches high pressure
The preset pressure of energy device 3, proportional pressure control valve 17 are opened, and unnecessary liquid oil passing ratio overflow valve 17 flow to external fuel tank, are closed
High-voltage switch gear valve 2 so that the pressure of high pressure accumulator 3 maintains the preset pressure of high pressure accumulator 3；
Step S2：Open high-voltage switch gear valve 2 and high-voltage ratio flow valve 4, high-voltage ratio flow valve 4 control according to certain rules
The output flow of high pressure accumulator 3, the quick release liquid of high pressure accumulator 3 oil, promotes high-pressure hydraulic cylinder to stretch out, and it is fast to play vertical arm
Speed is promoted to certain angle, and when high-pressure hydraulic cylinder is close to range, high-voltage switch gear valve 2 and high-voltage ratio flow valve 4 are closed,
Proportional direction valve 11 is opened, and by active force branch road release liquid oil, is promoted high-pressure hydraulic cylinder to be slowly reached range, is completed high pressure
The extending action of hydraulic cylinder；
Step S3：Medium voltage switch or circuit breaker valve 5 and middle pressure proportional flow control valve 7 are opened, middle pressure proportional flow control valve 7 controls according to certain rules
The output flow of intermediate-pressure accumulator 6, the quick release liquid of intermediate-pressure accumulator 6 oil, pressure cylinder stretches out in promotion, and it is fast to play vertical arm
Speed is further promoted to certain angle, when central pressure cylinder is close to range, Medium voltage switch or circuit breaker valve 5 and middle pressure proportional flow control valve
7 are closed, and proportional direction valve 11 is opened, and by active force branch road release liquid oil, pressure cylinder is slowly reached range in promotion, complete
Into the extending action of middle pressure cylinder；
Step S4：Open low tension switch valve 8 and low pressure proportional flow control valve 10, low pressure proportional flow control valve 10 are controlled according to certain rules
The output flow of low pressure accumulator 9 processed, the quick release liquid of low pressure accumulator 9 oil, promotes low-pressure hydraulic cylinder to stretch out, and will play vertical arm
Fast lifting is to close to 90 °, and low tension switch valve 8 and low pressure proportional flow control valve 10 are closed, and proportional direction valve 11 is opened, by active force
Branch road release liquid oil, vertical arm will be played and be slowly promoted to 90 °, completed perpendicular.Due to rise vertical arm exist turn up a little, that is, exist load by
Impedance load is changed into Exceed load, so when arrival is turned up, auxiliary power power branch road terminates to act on, now needed for system
Load force and flow it is all very small, hereafter promoted vertical arm to complete perpendicular by active force branch road and accurately braked at 90 °.
It should be noted that in above-mentioned perpendicular method, because the accumulator working time is very short, the whole work process time exists
Work can be completed in several seconds, and vertical arm lifting will be played and arrive certain angle, this process can significantly shorten the perpendicular time, shorten to
Part originally, this needs to combine actual loading and relevant operating parameter to determine.
Further, since after the effect of auxiliary power branch road terminates, it is gradual retarded motion to play vertical arm, is connected the moment when reaching
Afterwards, active force branch road has promoted vertical arm to be steadily connected motion, and has completed perpendicular process under certain perpendicular rule.Here rank
The determination for connecing the moment is a key issue, and this moment is that the maximal rate that can be provided according to active force branch road determines,
It is the linking moment when decelerating to the maximal rate that main power source can be provided after the effect of auxiliary power branch road terminates, now protects
The continuity of liquid oil stream amount is demonstrate,proved.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.
Claims (10)
1. a kind of three-level Erecting System, it is characterised in that including oil supply unit, three-level hydraulic cylinder and active force parallel with one another
Branch road and three auxiliary power branch roads；Three auxiliary power branch roads are divided into high pressure auxiliary power branch road, middle pressure auxiliary power branch road
With low pressure auxiliary power branch road；The three-level hydraulic cylinder is divided into high-pressure hydraulic cylinder, middle pressure cylinder and low-pressure hydraulic cylinder；
The high-pressure hydraulic cylinder is connected by active force branch road and high pressure auxiliary power branch road with oil supply unit respectively；Medium pressure
Hydraulic cylinder is connected by active force branch road and middle pressure auxiliary power branch road with oil supply unit respectively；The low-pressure hydraulic cylinder leads to respectively
Cross active force branch road and low pressure auxiliary power branch road connects with oil supply unit；
The stretching of high-pressure hydraulic cylinder and middle pressure cylinder is first promoted by corresponding auxiliary power branch road, close to this grade of hydraulic cylinder
During range, active force branch road is switched to；The stretching of low-pressure hydraulic cylinder is first promoted by corresponding auxiliary power branch road, perpendicular rising
When playing vertical angle degree close to 90 ° of arm, switch to the promotion of active force branch road so that the vertical angle degree that rises for playing vertical arm reaches 90 °, completes
It is perpendicular.
2. three-level Erecting System according to claim 1, it is characterised in that rise vertical arm rise it is perpendicular during, it is first, high
Press auxiliary power branch road to open, release liquid oil, promote the high-pressure hydraulic cylinder communicated therewith to stretch out, in the close maximum of high-pressure hydraulic cylinder
During stroke, high pressure auxiliary power branch road is closed, and active force branch road is opened, release liquid oil, promotes high-pressure hydraulic cylinder to range；
Then, middle pressure auxiliary power branch road opening, release liquid oil, promote the middle pressure cylinder communicated therewith to stretch out, in middle hydraulic fluid
When cylinder pressure is close to range, middle pressure auxiliary power branch road is closed, and active force branch road is opened, release liquid oil, hydraulic fluid pressure in promotion
Cylinder is to range；
Finally, low pressure auxiliary power branch road opening, release liquid oil, promote the low-pressure hydraulic cylinder communicated therewith to stretch out, and are playing a vertical arm
Rise vertical angle degree close to 90 ° when, low pressure auxiliary power branch road close, active force branch road open, release liquid oil, promote low-pressure hydraulic
Cylinder stretches out so that the vertical angle degree that rises for playing vertical arm reaches 90 °, has completed perpendicular.
3. three-level Erecting System according to claim 1, it is characterised in that the auxiliary power branch road includes being sequentially connected
Switch valve, accumulator and proportional flow control valve；
The liquid-inlet of the switch valve connects with the liquid outlet of the oil supply unit, the liquid outlet of the proportional flow control valve
With the oil-feed oil communication of corresponding one-stage hydraulic cylinder.
4. three-level Erecting System according to claim 3, it is characterised in that during high-pressure hydraulic cylinder stretching, high pressure
The switch valve and proportional flow control valve of auxiliary power branch road are opened, the accumulator release liquid oil of high pressure auxiliary power branch road, promote with
Its high-pressure hydraulic cylinder connected is stretched out；The acceleration of vertical arm has been monitored in real time, and proportional flow control valve is real according to default unlatching curve
When adjust high pressure auxiliary power branch road accumulator output flow so that rise vertical arm acceleration in the range of restriction；When
When monitoring high-pressure hydraulic cylinder close to range, the switch valve and proportional flow control valve of high pressure auxiliary power branch road are closed, actively
Power branch road is opened, release liquid oil, promotes high-pressure hydraulic cylinder to range.
5. three-level Erecting System according to claim 3, it is characterised in that during the stretching of middle pressure cylinder, middle pressure
The switch valve and proportional flow control valve of auxiliary power branch road are opened, the accumulator release liquid oil of middle pressure auxiliary power branch road, promote with
Its middle pressure cylinder connected stretches out；The acceleration of vertical arm has been monitored in real time, and proportional flow control valve is real according to default unlatching curve
When regulation in press auxiliary power branch road accumulator output flow so that rise vertical arm acceleration in the range of restriction；When
When monitoring middle pressure cylinder close to range, the switch valve and proportional flow control valve of middle pressure auxiliary power branch road are closed, actively
Power branch road is opened, release liquid oil, and pressure cylinder is to range in promotion.
6. three-level Erecting System according to claim 3, it is characterised in that during the stretching of low-pressure hydraulic cylinder, low pressure
The switch valve and proportional flow control valve of auxiliary power branch road are opened, the accumulator release liquid oil of low pressure auxiliary power branch road, promote with
Its low-pressure hydraulic cylinder connected stretches out；The acceleration of vertical arm has been monitored in real time, and proportional flow control valve is real according to default unlatching curve
When adjust low pressure auxiliary power branch road accumulator output flow so that rise vertical arm acceleration in the range of restriction；When
When having monitored the angle of vertical arm close to close to 90 °, the switch valve and proportional flow control valve of low pressure auxiliary power branch road are closed, actively
Power branch road is opened, release liquid oil, is promoted and is stretched out with low-pressure hydraulic cylinder so that the vertical angle degree that rises for playing vertical arm reaches 90 °, completes
It is perpendicular.
7. three-level Erecting System according to claim 1, it is characterised in that the active force branch road includes proportion directional
Valve, oil-feed balanced valve and balancing oil valve；
The oil-feed oil circuit of the high-pressure hydraulic cylinder, middle pressure cylinder and low-pressure hydraulic cylinder passes through oil-feed balanced valve and proportion directional
Valve connects with the liquid outlet of the oil supply unit；
The oil return circuit of the high-pressure hydraulic cylinder, middle pressure cylinder and low-pressure hydraulic cylinder passes through balancing oil valve and proportion directional
Valve connects with external fuel tank.
8. three-level Erecting System according to claim 1, it is characterised in that during active force branch road release liquid oil,
Liquid oil passing ratio direction valve and oil-feed balanced valve in oil supply unit enter high-pressure hydraulic cylinder, middle pressure cylinder or low-pressure hydraulic
The oil suction chamber of cylinder, liquid oil in the oil back chamber of high-pressure hydraulic cylinder, middle pressure cylinder or low-pressure hydraulic cylinder by balancing oil valve and
Proportional direction valve flow to external fuel tank.
9. three-level Erecting System according to claim 1, it is characterised in that the oil supply unit and active force branch road, height
The pipeline that pressure auxiliary power branch road, middle pressure auxiliary power branch road connect with low pressure auxiliary power branch road is provided with proportional pressure control valve.
10. three-level Erecting System according to claim 9, it is characterised in that auxiliary to high pressure auxiliary power branch road, middle pressure
In the filling process of power-assist power branch road and low pressure auxiliary power branch road, first, the preset pressure of setting ratio overflow valve is high pressure
The preset pressure of auxiliary power branch road, the switch valve in high pressure auxiliary power branch road is opened, open oil supply unit, liquid oil is filled with height
Press auxiliary power branch road；After the pressure of high pressure auxiliary power branch road reaches the preset pressure of proportional pressure control valve, liquid oil is from ratio
Overflow valve flow to external fuel tank；Switch valve in the high pressure auxiliary power branch road so that the high pressure auxiliary power branch road
Pressure maintains the preset pressure of high pressure auxiliary power branch road, completes the filling process of high pressure auxiliary power branch road；
Then, the preset pressure of setting ratio overflow valve is the middle preset pressure for pressing auxiliary power branch road, presses auxiliary dynamic in opening
Switch valve in power branch road, opens oil supply unit, and liquid oil is filled with middle pressure auxiliary power branch road；The pressure of central pressure auxiliary power branch road
After power reaches the preset pressure of proportional pressure control valve, liquid oil flow to external fuel tank from proportional pressure control valve；Medium pressure auxiliary power branch
Switch valve in road so that the pressure of medium pressure auxiliary power branch road maintains the preset pressure of middle pressure auxiliary power branch road,
The filling process of auxiliary power branch road is pressed in completion；
Finally, the preset pressure of setting ratio overflow valve is the preset pressure of low pressure auxiliary power branch road, and it is dynamic to open low pressure auxiliary
Switch valve in power branch road, opens oil supply unit, and liquid oil is filled with low pressure auxiliary power branch road；When the pressure of low pressure auxiliary power branch road
After power reaches the preset pressure of proportional pressure control valve, liquid oil flow to external fuel tank from proportional pressure control valve；The low pressure auxiliary power branch
Switch valve in road so that the pressure of the low pressure auxiliary power branch road maintains the preset pressure of low pressure auxiliary power branch road,
Complete the filling process of low pressure auxiliary power branch road.
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| CN110262214A (en) * | 2019-07-22 | 2019-09-20 | 北京航天发射技术研究所 | Play perpendicular control system |
| CN110374939A (en) * | 2019-07-19 | 2019-10-25 | 南京理工军邦特种智能装备研究院有限公司 | It is a kind of that the hydraulic system and pressure supply method of two kinds of different pressure are provided |
| CN112594232A (en) * | 2020-11-24 | 2021-04-02 | 中国人民解放军96901部队24分队 | High-speed hydraulic erecting mechanism based on synchronous telescopic multistage cylinder and energy accumulator |
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| CN113309746A (en) * | 2021-06-09 | 2021-08-27 | 重庆零壹空间科技集团有限公司 | Rocket launching vehicle erecting hydraulic system with load adjusting function and adjusting method |
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| CN113944659A (en) * | 2021-10-29 | 2022-01-18 | 重庆零壹空间科技集团有限公司 | Rocket erecting hydraulic system adopting energy accumulator for assisting oil supplement and auxiliary erecting method |
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| CN113309746A (en) * | 2021-06-09 | 2021-08-27 | 重庆零壹空间科技集团有限公司 | Rocket launching vehicle erecting hydraulic system with load adjusting function and adjusting method |
| CN113586532A (en) * | 2021-09-27 | 2021-11-02 | 徐州徐工挖掘机械有限公司 | Construction machine |
| CN113586532B (en) * | 2021-09-27 | 2021-12-21 | 徐州徐工挖掘机械有限公司 | Construction machine |
| CN113944659A (en) * | 2021-10-29 | 2022-01-18 | 重庆零壹空间科技集团有限公司 | Rocket erecting hydraulic system adopting energy accumulator for assisting oil supplement and auxiliary erecting method |
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