CN102003919A - Novel gas-liquid mixed power ejection device - Google Patents
Novel gas-liquid mixed power ejection device Download PDFInfo
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- CN102003919A CN102003919A CN2010105248490A CN201010524849A CN102003919A CN 102003919 A CN102003919 A CN 102003919A CN 2010105248490 A CN2010105248490 A CN 2010105248490A CN 201010524849 A CN201010524849 A CN 201010524849A CN 102003919 A CN102003919 A CN 102003919A
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Abstract
A novel gas-liquid mixed power ejection device comprises a hydraulic cylinder, an accumulator and a main valve, wherein the lower chamber of the hydraulic cylinder is communicated with the gas part of the accumulator; the gas part of the accumulator is provided with a pressure sensor; the liquid part of the accumulator is connected with the oil outlet of a first 2D digital valve and the oil inlet of the main valve; the oil outlet of the main valve is communicated with the oil port of the upper chamber of the hydraulic cylinder; the oil inlet of the first 2D digital valve is connected with a hydraulic power supply; the oil outlet of the first 2D digital valve is communicated with the oil inlet of a second 2D digital valve and the oil inlet of a third 2D digital valve; the oil outlet of the second 2D digital valve is communicated with the control oil port of the main valve; the oil outlet of the third 2D digital valve is communicated with the oil port of the upper chamber of the hydraulic cylinder; and the pressure sensor, the first 2D digital valve, the second 2D digital valve and the third 2D digital valve are all connected with a digital valve controller which is used to control the on/off of each 2D digital valve. The novel gas-liquid mixed power ejection device has many functions, high efficiency and good safety.
Description
Technical field
The present invention relates to the catapult-launching gear field, especially a kind of gas-liquid mixed power catapult-launching gear.
Background technology
From ejection energy, catapult-launching gear is divided into big gun formula, fluid pressure type, compressed air type, hydraulic pressure-pneumatic type, combustion type, fuel gas-steam formula and electromagnetic type etc.The application scenario of ejection mechanism is special, and is strict to the weight of system, dynamic response performance etc., both at home and abroad always all at the positive catapult-launching gear of development superior performance.Traditional catapult-launching gear function singleness, efficient are low.
Summary of the invention
In order to overcome the deficiency that function singleness, efficient are low, security is relatively poor of existing existing catapult-launching gear, the invention provides a kind of feature richness, efficient height, the good novel gas-liquid hybrid power ejection device of security.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of novel gas-liquid mixing catapult-launching gear, described gas-liquid mixed catapult-launching gear comprises hydraulic cylinder, accumulator, main valve, the one 2D digital valve, the 2nd 2D digital valve, the 3rd 2D digital valve, pressure sensor and hydraulic power supply, described hydraulic cylinder cavity of resorption partly is communicated with accumulator gas, the gas part setting pressure sensor of described accumulator, described accumulator liquid part is connected with the oil-out of a 2D digital valve, described accumulator liquid part is connected with the oil-in of main valve, the oil-out of described main valve is communicated with the hydraulic fluid port of hydraulic cylinder epicoele, the oil-in of a described 2D digital valve is connected with hydraulic power supply, the oil-in of the oil-out of a described 2D digital valve and described the 2nd 2D digital valve, the oil-in of the 3rd 2D digital valve all is communicated with, the oil-out of described the 2nd 2D digital valve is communicated with the control port of main valve, the oil-out of described the 3rd 2D digital valve is communicated with the hydraulic fluid port of hydraulic cylinder epicoele, described pressure sensor, the one 2D digital valve, the 2nd 2D digital valve and the 3rd 2D digital valve all are connected with the Digital Valve Controller that is used to control 2D digital valve switch.
Further, described hydraulic cylinder is divided into epicoele and cavity of resorption, and the area of section of described hydraulic cylinder cavity of resorption piston rod is greater than epicoele piston rod area of section, and described hydraulic cylinder cavity of resorption piston rod inside is empty, described hydraulic cylinder cavity of resorption and cavity of resorption piston rod internal communication.
Further again, a described 2D digital valve, the 2nd 2D digital valve and the 3rd 2D digital valve are triple valve and are installed on the main valve, and described main valve is installed on the accumulator, and described pressure sensor is installed on the accumulator.
Technical conceive of the present invention is: gas-hydraulic hybrid ejection system atmosphere storage energy, use the liquid transfer energy, have that the quality of launching is big, speed is fast, can not produce signals such as light, sound, heat, smog simultaneously, advantage such as property safe and out of sight is good, good economy performance, adaptability are strong.Spool valve pocket one end of 2D digital valve has the helicla flute fit structure, thereby the spool rotation makes poppet shaft produce axial displacement to the hydraulic coupling disequilibrium, the size of control valve port; The 2D digital valve adopts the rotation of stepper motor driven valve core, and is simple in structure, safe and reliable, as the patent No. is: 200710160253.5 and 200910153014.6 in first to file.The present invention uses the 2D digital valve as crucial control assembly, the 2D digital valve is used (described 2D digital valve comprises an oil-in, an oil-out and an oil return opening) as switch valve, propose a kind of rational in infrastructure, control catapult-launching gear flexibly, given full play to the advantage of gas-liquid mixed formula ejection system.
Gassy in hydraulic cylinder cavity of resorption and the cavity of resorption piston rod, and partly be connected with accumulator gas, one, hydraulic cylinder piston rod not bringing onto load slowly stretch out, connect three 2D digital valve simultaneously, the 2nd 2D digital valve control valve core of main valve pressure at two ends balance, main valve is closed, and fluid enters the hydraulic cylinder epicoele by the 3rd 2D digital valve, gas in the compression hydraulic cylinder cavity of resorption realizes that piston rod slowly stretches out; Two, the hydraulic cylinder piston rod band carries retraction, make the 3rd 2D digital valve switch to oil return line, hydraulic power supply passes through a 2D digital valve to the accumulator topping up, while compress energy storage device gas, because accumulator gas is connected with the hydraulic cylinder cavity of resorption, gas promotes to move on the piston rod, realizes that the piston rod band carries retraction; Three, piston rod ejects fast, pressure sensor detects the accumulator gas pressure, when pressure reaches setting value, the one 2D digital valve is closed, the 2nd 2D digital valve switches to oil return line, and the 3rd 2D digital valve switches to in-line, and this moment, fluid promoted main valve open, accumulator fluid enters the hydraulic cylinder epicoele simultaneously by main valve and the 3rd 2D digital valve, promotes piston rod and ejects fast; Four, piston rod reclaims, and first and second 2D digital valve switches to in-line, and the 3rd 2D digital valve switches to oil return line, realizes that piston rod reclaims, and whole ejection process finishes.
Benefit of the present invention mainly shows: 1, realize a kind of multiple functional, performance is outstanding, automaticity is high catapult-launching gear; 2, gas and the connection of accumulator gas in hydraulic cylinder cavity of resorption and the cavity of resorption piston rod make hydraulic cylinder cavity of resorption and the accumulator connecting line is thin and damping is little; 3, launch before, hydraulic cylinder cavity of resorption gas acts on piston, makes piston rod be in pull-up state all the time, security of system is good; 4, rationally utilized system space, made that whole catapult-launching gear is in light weight, volume is little, compact conformation.
Description of drawings
Fig. 1 is the principle schematic of novel gas-liquid hybrid power ejection device of the present invention.
Fig. 2 is the Digital Valve Controller principle schematic of novel gas-liquid hybrid power ejection device of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
See figures.1.and.2, a kind of novel gas-liquid mixing catapult-launching gear, described gas-liquid mixed catapult-launching gear comprises hydraulic cylinder 8, accumulator 3, main valve 10, the one 2D digital valve 4, the 2nd 2D digital valve 11, the 3rd 2D digital valve 9, pressure sensor 2 and hydraulic power supply 1, described hydraulic cylinder cavity of resorption partly is communicated with accumulator 3 gases, the gas part setting pressure sensor 2 of described accumulator 3, described accumulator 3 liquid part is connected with the oil-out of a 2D digital valve 4, described accumulator 3 liquid part is connected with the oil-in of main valve 10, the oil-out of described main valve 10 is communicated with the hydraulic fluid port of hydraulic cylinder 8 epicoeles, the oil-in of a described 2D digital valve 4 is connected with hydraulic power supply 1, the oil-in of the oil-out of a described 2D digital valve 4 and described the 2nd 2D digital valve 11, the oil-in of the 3rd 2D digital valve 9 all is communicated with, the oil-out of described the 2nd 2D digital valve 11 is communicated with the control port of main valve 10, the oil-out of described the 3rd 2D digital valve 9 is communicated with the hydraulic fluid port of hydraulic cylinder epicoele, described pressure sensor 2, the one 2D digital valve 4, the 2nd 2D digital valve 11 and the 3rd 2D digital valve 9 all are connected with the Digital Valve Controller 5 that is used to control 2D digital valve switch.
Described hydraulic cylinder 8 is divided into epicoele and cavity of resorption, described hydraulic cylinder 8 cavity of resorption gassies, described hydraulic cylinder 8 cavity of resorption piston rods 6 are also gassies of hollow, have aperture 7 on the described hydraulic cylinder 8 cavity of resorption piston rods 6 and make piston rod 6 interior gases be communicated with hydraulic cylinder 8 cavity of resorption gases, described hydraulic cylinder 8 cavity of resorptions are communicated with accumulator 3 gases;
With reference to Fig. 2, described Digital Valve Controller 5 is made of SCM system, comprises being used for gathering in real time the data acquisition module of accumulator gas pressure signal and the driver module and the input/output module of control figure threshold switch.
Described gas-liquid catapult-launching gear is realized following four kinds of motions, one, piston rod 6 not bringing onto load slowly stretch out, Digital Valve Controller 5 powers on simultaneously and connects three 2D digital valve, the 2nd 2D digital valve 11 control main valves 10 spool pressure at two ends balances, main valve 10 is closed, fluid enters hydraulic cylinder 8 epicoeles by the 3rd 2D digital valve 9, and gas in compression hydraulic cylinder 8 cavity of resorptions realizes that piston rod 6 slowly stretches out; Two, piston rod 6 bands carry retraction, make the 3rd 2D digital valve 9 switch to oil return line, hydraulic power supply 1 is by 4 pairs of accumulator 3 topping ups of a 2D digital valve, while compress energy storage device 3 gases, because accumulator 3 gases are connected with hydraulic cylinder 8 cavity of resorptions, gas pressure raises and promotes and moves on the piston rod 6, realizes that piston rod 6 bands carry retraction; Three, piston rod 6 ejects fast, pressure sensor 2 detects accumulator 3 gas pressures and gives Digital Valve Controller 5 with pressure signal, when pressure reaches setting value, Digital Valve Controller 5 is closed a 2D digital valve 4, the 2nd 2D digital valve 11 switches to oil return line, the 3rd 2D digital valve 9 switches to in-line, this moment main valve 10 spool pressure at two ends disequilibriums, valve core movement makes main valve open, accumulator 3 fluid enter hydraulic cylinder 8 epicoeles simultaneously by main valve 10 and the 3rd 2D digital valve 9, promote piston rod 6 and eject fast; Four, piston rod 6 reclaims, and a 2D digital valve 4 and the 2nd 2D digital valve 11 switch to in-line, and the 3rd 2D digital valve 9 switches to oil return line, realizes that piston rod 6 reclaims, and whole ejection process finishes.
Claims (3)
1. novel gas-liquid hybrid power ejection device, it is characterized in that: described gas-liquid mixed catapult-launching gear comprises hydraulic cylinder, accumulator, main valve, the one 2D digital valve, the 2nd 2D digital valve, the 3rd 2D digital valve, pressure sensor and hydraulic power supply, described hydraulic cylinder cavity of resorption partly is communicated with accumulator gas, the gas part setting pressure sensor of described accumulator, described accumulator liquid part is connected with the oil-out of a 2D digital valve, described accumulator liquid part is connected with the oil-in of main valve, the oil-out of described main valve is communicated with the hydraulic fluid port of hydraulic cylinder epicoele, the oil-in of a described 2D digital valve is connected with hydraulic power supply, the oil-in of the oil-out of a described 2D digital valve and described the 2nd 2D digital valve, the oil-in of the 3rd 2D digital valve all is communicated with, the oil-out of described the 2nd 2D digital valve is communicated with the control port of main valve, the oil-out of described the 3rd 2D digital valve is communicated with the oil-in of hydraulic cylinder epicoele, described pressure sensor, the one 2D digital valve, the 2nd 2D digital valve and the 3rd 2D digital valve all are connected with the Digital Valve Controller that is used to control 2D digital valve switch.
2. novel gas-liquid hybrid power ejection device as claimed in claim 1, it is characterized in that: described hydraulic cylinder is divided into epicoele and cavity of resorption, the area of section of described hydraulic cylinder cavity of resorption piston rod is greater than epicoele piston rod area of section, described hydraulic cylinder cavity of resorption piston rod inside is empty, described hydraulic cylinder cavity of resorption and cavity of resorption piston rod internal communication.
3. novel gas-liquid hybrid power ejection device as claimed in claim 1 or 2, it is characterized in that: a described 2D digital valve, the 2nd 2D digital valve and the 3rd 2D digital valve are triple valve and are installed on the main valve, described main valve is installed on the accumulator, and described pressure sensor is installed on the accumulator.
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| CN 201010524849 CN102003919B (en) | 2010-10-29 | 2010-10-29 | Novel gas-liquid mixed power ejection device |
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| CN 201010524849 CN102003919B (en) | 2010-10-29 | 2010-10-29 | Novel gas-liquid mixed power ejection device |
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| CN102003919B CN102003919B (en) | 2013-04-24 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102913491A (en) * | 2012-10-15 | 2013-02-06 | 浙江工业大学 | Quick high-pressure inflating system capable of recovering energy |
| CN102921127A (en) * | 2012-11-09 | 2013-02-13 | 浙江工业大学 | High pressure gas ejection water cannon |
| CN103277353A (en) * | 2013-05-08 | 2013-09-04 | 燕山大学 | Unmanned aerial vehicle low impact catapult pneumatic and hydraulic system |
| CN105351260A (en) * | 2015-11-19 | 2016-02-24 | 南京理工大学 | Gas-liquid mixed multistage high-speed catapult |
| CN113357205A (en) * | 2021-06-16 | 2021-09-07 | 浙江大学 | Gas-liquid ejection servo actuating system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101666341A (en) * | 2009-09-25 | 2010-03-10 | 浙江工业大学 | High frequency large flow 2D digital servo valve |
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| CN101666341A (en) * | 2009-09-25 | 2010-03-10 | 浙江工业大学 | High frequency large flow 2D digital servo valve |
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| 刘乃新: "气液弹射机构的设计及关键控制元件的研究", 《中国优秀硕士论文全文数据库 工程科技Ⅱ辑》 * |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913491A (en) * | 2012-10-15 | 2013-02-06 | 浙江工业大学 | Quick high-pressure inflating system capable of recovering energy |
| CN102921127A (en) * | 2012-11-09 | 2013-02-13 | 浙江工业大学 | High pressure gas ejection water cannon |
| CN102921127B (en) * | 2012-11-09 | 2015-07-29 | 浙江工业大学 | Gases at high pressure launch water cannon |
| CN103277353A (en) * | 2013-05-08 | 2013-09-04 | 燕山大学 | Unmanned aerial vehicle low impact catapult pneumatic and hydraulic system |
| CN103277353B (en) * | 2013-05-08 | 2015-06-10 | 燕山大学 | Unmanned aerial vehicle low impact catapult pneumatic and hydraulic system |
| CN105351260A (en) * | 2015-11-19 | 2016-02-24 | 南京理工大学 | Gas-liquid mixed multistage high-speed catapult |
| CN105351260B (en) * | 2015-11-19 | 2017-08-04 | 南京理工大学 | Gas-liquid mixed multistage high speed ejection device |
| CN113357205A (en) * | 2021-06-16 | 2021-09-07 | 浙江大学 | Gas-liquid ejection servo actuating system |
| CN113357205B (en) * | 2021-06-16 | 2022-11-29 | 浙江大学 | Gas-liquid ejection servo actuating system |
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