CN105351260B - Gas-liquid mixed multistage high speed ejection device - Google Patents
Gas-liquid mixed multistage high speed ejection device Download PDFInfo
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- CN105351260B CN105351260B CN201510811737.6A CN201510811737A CN105351260B CN 105351260 B CN105351260 B CN 105351260B CN 201510811737 A CN201510811737 A CN 201510811737A CN 105351260 B CN105351260 B CN 105351260B
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- multistage
- valve
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- cylinder
- ejection
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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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
- F15B11/072—Combined pneumatic-hydraulic systems
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The invention discloses a kind of multistage high speed ejection device of gas-liquid mixed, including hydraulic oil source, control valve, big flow switch valve, regular tap valve, accumulator, controller, multistage ejection cylinder and load, hydraulic oil source is connected with the oil inlet of control valve, the oil-out of control valve is connected with accumulator liquid portion, and be connected with the oil inlet of big flow switch valve, the oil-out of big flow switch valve is connected with the cavity of resorption of multistage ejection cylinder, the cavity of resorption of multistage ejection cylinder is connected with the oil inlet of regular tap valve, the innermost layer piston sleeve of multistage ejection cylinder is connected with load, the control end of control valve, the control end of big flow switch valve, the control end of regular tap valve is connected with controller, the oil outlet end of regular tap valve and the fuel tank of hydraulic oil source are connected；The present invention both effectively reduces sealing difficulty during high speed ejection using Multi-stage cylinder, causes the controllability of gas-liquid mixed catapult-launching gear to improve again.
Description
Technical field
The invention belongs to catapult-launching gear technical field, particularly a kind of multistage high speed ejection device of gas-liquid mixed.
Background technology
Existing catapult-launching gear, mainly comprising big gun formula, combustion type, steam-type, compressed air type, fluid pressure type, hydropneumatic,
Electromagnetic type etc..Big gun formula ejection mechanism ejection speed is very high, but impact acceleration is big, and ejection process is uncontrollable；Combustion type bullet
Penetrating can efficiently be converted into chemical energy the kinetic energy of ejection load, but there is high temperature ablation phenomenon.Above two mode is less
Using.It is consumption quantity of steam needed for compressed air, steam-type, fluid pressure type, but steam-type ejection by widely used ejection mode
Greatly, air seal problem is difficult to effectively be overcome all the time, and capacity usage ratio is extremely low, and ejection acceleration distance is longer；Compressed air
Formula is launched, and equipment is heavy, and ejection performance depends on storage pressure and volume, and equally exists air seal sex chromosome mosaicism；Fluid pressure type
Ejection, the high rapidity of precision is good, but during for launching heavy load with very high ejection speed, then occur needing super-flow and
The hydraulic control valve of high-speed response, existing Sealing Technology are difficult to ensure that the problem of cylinder body and piston rod packing.At present, with application
The electromagnetic launch mode of prospect, using linear electric motors, is not limited by ejection load, catapulting distance, ejection speed, and can controllability
By force, but there is high-intensity magnetic field interference, and huge energy consumption, required energy source device are huge, are even only applicable to large-scale nuclear aircraft carrier.
In addition, the gas-liquid mixed power ejection cylinder occurred in recent years, ejection performance is good, pneumatic ejection has effectively been merged
With the advantage of hydraulic catapult, but patent 201010524849.0 with ultrahigh speed launch heavy load when, due to being single-stage cylinder, structure
Speed of related movement is too high between part, it is impossible to overcome ultrahigh speed sealing problem, although and patent 200910166299.7 uses multistage
Catapult-launching gear, but high-pressure air source is purely used, the compressibility that gas has is so that system stiffness is low so that ejection process is difficult
To carry out accurately controlling to reach desired ejection output effect to input by valve, controllability is low.
The content of the invention
It is an object of the invention to provide a kind of good airproof performance, efficiency high is launched, the high gas-liquid mixed of system controllability and measurability is more
Level high speed ejection device.
The technical solution for realizing the object of the invention is：
A kind of multistage high speed ejection device of gas-liquid mixed, including hydraulic oil source, control valve, big flow switch valve, commonly open
Close in valve, accumulator, controller, multistage ejection cylinder and load, multistage ejection cylinder and be provided with multilevel sleeve type piston cylinder, multistage set
The bottom of pot type piston cylinder is slidingly sealed cooperation with multistage ejection cylinder, and multistage launches being provided with and multilevel sleeve type piston cylinder for cylinder
Cooperation is slidingly sealed, multistage ejection cylinder is divided into cavity of resorption and epicoele by the bottom of multilevel sleeve type piston cylinder, and upper intracavitary is filled with
Fluid, multilevel sleeve type piston cylinder is that the cavity in Multilayer sleeve structure, Multilayer sleeve structure is connected, and is connected with epicoele
Logical, multistage ejection cylinder epicoele is provided with oil-filled mouth, and hydraulic oil source is connected with the oil inlet of control valve, the oil-out of control valve and accumulation of energy
Device liquid portion is connected, and is connected with the oil inlet of big flow switch valve, the oil-out of big flow switch valve and multistage ejection cylinder
Cavity of resorption connection, the cavity of resorption of multistage ejection cylinder is connected with the oil inlet of regular tap valve, the multistage innermost layer piston for launching cylinder
Sleeve is connected with load, the control end of control valve, the control end of big flow switch valve, the control end of regular tap valve with control
Device is connected, and the oil outlet end of regular tap valve and the fuel tank of hydraulic oil source are connected.
The present invention compared with prior art, its remarkable advantage：
(1) stroke that the present invention can be effectively using Multi-stage cylinder in limited installing space carries out acceleration ejection.
(2) using the elastic potential energy of accumulator gas when the present invention is launched, possess pneumatic ejection system storage and transmit
The characteristics of energy density is big, and repeat to only need to inject pressure oil into accumulator when launching.
(3) present invention, compared to existing ejection mode, is had using Multi-stage cylinder while Reliable guarantee highest ejection speed
The speed of related movement between executive component is reduced to effect, is that reliable sealing can be achieved using existing Sealing Technology.
(4) Multi-stage cylinder rod chamber of the present invention improves the profit between executive component to be full of the oil closed cavity of fluid all the time
It is sliding, it is easy to which that hydraulic bjuffer is set, it is most important that inside oil closed cavity fluid under rodless cavity thrust, can adaptively flow and
Promote piston rod to stretch out, be not required to supplement fluid, greatly reduce the fluid flow of supply required for outside oil sources.
(5) working media of the invention is incompressible hydraulic oil, with rigidity is big and the characteristics of high intrinsic frequency, easily
Input fluid is accurately controlled in by hydraulic valve, so as to realize accurate control to ejection process.
The present invention is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the general structure schematic diagram of the multistage high speed ejection device of gas-liquid mixed of the present invention.
Embodiment
With reference to Fig. 1：
A kind of multistage high speed ejection device of gas-liquid mixed of the present invention, including hydraulic oil source 1, control valve 4, big flow switch valve
5th, multi-stage sleeve is provided with regular tap valve 7, accumulator 3, controller 6, multistage ejection cylinder 8 and load 11, multistage ejection cylinder 8
Formula piston cylinder 12, the bottom of multilevel sleeve type piston cylinder 12 is slidingly sealed cooperation with multistage ejection cylinder 8, and multistage launches opening for cylinder 8
Mouth end is slidingly sealed cooperation with multilevel sleeve type piston cylinder 12, and multistage ejection cylinder 8 is by the bottom of multilevel sleeve type piston cylinder 12 point
It is divided into cavity of resorption 9 and epicoele 13, epicoele 13 and is filled with fluid, multilevel sleeve type piston cylinder 12 is Multilayer sleeve structure, multilayer
Cavity in telescoping structure is connected, and is connected with epicoele 13, and epicoele 13 is provided with oil-filled mouth 10, hydraulic oil source 1 and control valve 4
Oil inlet be connected, the oil-out of control valve 4 is connected with the liquid portion of accumulator 3, and with the oil inlet phase of big flow switch valve 5
Even, the oil-out of big flow switch valve 5 is connected with the cavity of resorption 9 of multistage ejection cylinder 8, the cavity of resorption 9 and regular tap of multistage ejection cylinder 8
The oil inlet of valve 7 is connected, and the innermost layer piston sleeve of multistage ejection cylinder 8 is connected with load 11, the control end of control valve 4, big
The control end of flow switching valve 5, the control end of regular tap valve 7 are connected with controller 6, the oil outlet end of regular tap valve 7
It is connected with the fuel tank of hydraulic oil source 1.
The gas part of accumulator 3 is provided with pressure sensor 2, the output end of pressure sensor 2 and the signal of controller 6
Collection terminal is connected.
Embodiment：
With reference to Fig. 1：
A kind of multistage high speed ejection device of gas-liquid mixed, including it is hydraulic oil source 1, control valve 4, big flow switch valve 5, common
Multilevel sleeve type piston is provided with switch valve 7, accumulator 3, controller 6, multistage ejection cylinder 8 and load 11, multistage ejection cylinder 8
Cylinder 12, the bottom of multilevel sleeve type piston cylinder 12 and multistage ejection cylinder 8 are slidingly sealed cooperations, the openend of multistage ejection cylinder 8 and
Multilevel sleeve type piston cylinder 12 is slidingly sealed cooperation, under multistage ejection cylinder 8 is divided into by the bottom of multilevel sleeve type piston cylinder 12
Fluid is filled with chamber 9 and epicoele 13, epicoele 13, multilevel sleeve type piston cylinder 12 is two layers of telescoping structure, its inner layer sleeve
It is connected with load, mainly inner layer sleeve promotes load, the external part of inner layer sleeve slides close with the external part of outer layer sleeve cylinder
Envelope coordinates, and the openend of inner layer sleeve and the Master cylinder body of outer layer sleeve cylinder are slidably matched, and inner layer sleeve is close to opening end position
The circumferential side wall perforate of circumferential side wall perforate and outer layer sleeve cylinder close to the side position of cavity of resorption 9 one so that inner layer sleeve and outer layer jacket
Cavity between cylinder cylinder is connected with epicoele 13, and epicoele 13 is provided with oil-filled mouth 10.
Hydraulic oil source 1 includes fuel tank, oil pump and overflow valve, and the fuel feeding end of oil pump is connected with fuel tank, the oil outlet end of oil pump and
The oil inlet of control valve 4 is connected, and on the oil circuit that oil pump oil outlet end is connected with the oil inlet of control valve 4, draws branch road oil circuit
To one end of overflow valve, the other end of overflow valve is connected with fuel tank, and the oil-out of control valve 4 is connected with the liquid portion of accumulator 3,
And be connected with the oil inlet of big flow switch valve 5, the oil-out of big flow switch valve 5 is connected with the cavity of resorption 9 of multistage ejection cylinder 8,
The cavity of resorption 9 of multistage ejection cylinder 8 is connected with the oil inlet of regular tap valve 7, oil-out and the hydraulic oil source 1 of regular tap valve 7
Fuel tank connection, the control end of control valve 4, the control end of big flow switch valve 5, the control end of regular tap valve 7 with control
Device 6 is connected, and the gas part of accumulator 3 is provided with pressure sensor 2, the output end of pressure sensor 2 and the letter of controller 6
Number collection terminal is connected.
Gas-liquid mixed multistage high speed ejection device ejection process is as follows：
Prepare before ejection, the oil-filled mouth 10 of cylinder epicoele 13 is launched to the inside of multistage ejection cylinder epicoele 13 and multistage set by multistage
The inside of pot type piston cylinder 12 is full of pressure oil, controller 6 to control valve 4, big flow switch valve 5 and regular tap valve 7 control
Hold input signal so that be off-state between big flow switch valve 5 and the oil inlet and oil-out of regular tap valve 7, and make
The oil inlet of control valve 4 is connected with oil-out, so that hydraulic oil source 1 is oil-filled to the liquid portion of accumulator 3, pressure sensor
2 measure accumulator gas partial pressures and the pressure signal collection terminal for passing to controller 6, when gas pressure reaches in accumulator 3
During to setting value, the signal output part of controller 6 outputs signal to the control end of big flow switch valve 5 and control valve 4 so that big stream
Oil circuit is measured between the oil inlet and oil-out of switch valve 5 together with and disconnecting the connection of the oil inlet and oil-out of control valve 4 so that
The liquid portion pressure oil of accumulator 3 is filled with rapidly multistage ejection cylinder cavity of resorption 9, promotes the multilevel sleeve type in multistage ejection cylinder 8 to live
With the inside fluid flowing of multilevel sleeve type piston cylinder 12 in the outer layer sleeve cylinder motion of plug cylinder 12, multistage ejection cylinder epicoele 13, push away
The inner layer sleeve of dynamic multilevel sleeve type piston cylinder 12 accelerates to stretch out, and promotes load 11 to be launched, after ejection load 11, controller
6 signal output parts output signal to regular tap valve 7 and big flow switch valve 5 so that the oil inlet of regular tap valve 7 and fuel-displaced
Mouth connection, and the oil inlet of big flow switch valve 5 and connecting between oil-out are closed, the fluid of cavity of resorption 9 of multistage ejection cylinder 8 is upper
Flowed out under the effect of the pressure oil of chamber 13 and the dead load of multilevel sleeve type piston cylinder 12, hydraulic oil source 1 is flowed into by regular tap valve 7
Fuel tank in, multistage ejection cylinder multilevel sleeve type piston cylinder 12 retract.
Claims (2)
1. a kind of multistage high speed ejection device of gas-liquid mixed, it is characterised in that：Including hydraulic oil source (1), control valve (4), big stream
Measure switch valve (5), regular tap valve (7), accumulator (3), controller (6), multistage ejection cylinder (8) and load (11), multistage bullet
Penetrate and multilevel sleeve type piston cylinder (12) is provided with cylinder (8), the bottom of multilevel sleeve type piston cylinder (12) and multistage ejection cylinder (8)
Cooperation is slidingly sealed, openend and the multilevel sleeve type piston cylinder (12) of multistage ejection cylinder (8) are slidingly sealed cooperation, multistage ejection
Cylinder (8) is divided into cavity of resorption (9) and epicoele (13), epicoele (13) filled with oil by the bottom of multilevel sleeve type piston cylinder (12)
Liquid, multilevel sleeve type piston cylinder (12) is that the cavity in Multilayer sleeve structure, Multilayer sleeve structure is connected, and and epicoele
(13) connect, epicoele (13) is provided with oil-filled mouth (10), hydraulic oil source (1) is connected with the oil inlet of control valve (4), control valve (4)
Oil-out be connected with accumulator (3) liquid portion, and be connected with the oil inlet of big flow switch valve (5), big flow switch valve
(5) oil-out is connected with the cavity of resorption (9) of multistage ejection cylinder (8), cavity of resorption (9) and the regular tap valve (7) of multistage ejection cylinder (8)
Oil inlet be connected, multistage ejection cylinder (8) innermost layer piston sleeve with load (11) be connected, the control end of control valve (4),
The control end of big flow switch valve (5), the control end of regular tap valve (7) are connected with controller (6), regular tap valve
(7) oil outlet end is connected with the fuel tank of hydraulic oil source (1).
2. the multistage high speed ejection device of gas-liquid mixed according to claim 1, it is characterised in that：The accumulator (3)
Gas part is provided with pressure sensor (2), and the output end of pressure sensor (2) is connected with the signal acquisition terminal of controller (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510811737.6A CN105351260B (en) | 2015-11-19 | 2015-11-19 | Gas-liquid mixed multistage high speed ejection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510811737.6A CN105351260B (en) | 2015-11-19 | 2015-11-19 | Gas-liquid mixed multistage high speed ejection device |
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| Publication Number | Publication Date |
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| CN105351260A CN105351260A (en) | 2016-02-24 |
| CN105351260B true CN105351260B (en) | 2017-08-04 |
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| CN201510811737.6A Active CN105351260B (en) | 2015-11-19 | 2015-11-19 | Gas-liquid mixed multistage high speed ejection device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056548B (en) * | 2019-03-18 | 2020-06-23 | 宝鸡石油机械有限责任公司 | Hydraulic control system of fracturing manifold quick connecting device |
| CN110439880A (en) * | 2019-08-12 | 2019-11-12 | 北京坤飞航天科技有限公司 | The synchronous gas-liquid driving system of ultrahigh speed superelevation and gas-liquid driving method |
| CN113357205B (en) * | 2021-06-16 | 2022-11-29 | 浙江大学 | Gas-liquid ejection servo actuating system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195414A (en) * | 2006-12-04 | 2008-06-11 | 胡宣哲 | Numerical controlled constant power ejection method and device |
| CN101676174A (en) * | 2008-09-19 | 2010-03-24 | 胡宣哲 | Cold sling method and device |
| CN102003919A (en) * | 2010-10-29 | 2011-04-06 | 浙江工业大学 | Novel gas-liquid mixed power ejection device |
-
2015
- 2015-11-19 CN CN201510811737.6A patent/CN105351260B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195414A (en) * | 2006-12-04 | 2008-06-11 | 胡宣哲 | Numerical controlled constant power ejection method and device |
| CN101676174A (en) * | 2008-09-19 | 2010-03-24 | 胡宣哲 | Cold sling method and device |
| CN102003919A (en) * | 2010-10-29 | 2011-04-06 | 浙江工业大学 | Novel gas-liquid mixed power ejection device |
Non-Patent Citations (1)
| Title |
|---|
| 高速弹射实验装置液压动力***;赵伟等;《浙江大学学报（工学版）》;20140531;第48卷(第5期);第800页第1栏第2-3段、第2栏第1段，附图1 * |
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