CN101007253A - Terminal pressure accurate control device of diamond pressure machine and controlling method - Google Patents
Terminal pressure accurate control device of diamond pressure machine and controlling method Download PDFInfo
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Abstract
The invention discloses a pressure precisely control device of diamond punch and its control method, it can be connected with conventional artificial diamond punch and achieves the precise control of terminal pressure to provide stable and accurate pressure for diamond punch. One construction form of the diamond punch terminal pressure precisely control device consists of media isolated cylinder, isolated piston, supercharger and hydraulic system connectors; and another form of the invention consists of media isolated cylinder, isolated piston, power output piston and hydraulic system connectors. The isolated piston of media isolated cylinder isolates precisely the fluid media of fluid power source and the hydraulic oil media. The invention uses the power of hydraulic system to pull the main hydraulic cylinder or supercharger moving forward or backward rapidly in initial and final unloading stage, and uses fluid power with precise fluid power source and no pulse in the pressure precisely control stage when synthesizing diamond to reach the accurate and stable pressure condition required by the art in the synthesized cavity.
Description
Technical field
The present invention relates to a kind of fluid pressure precise control device and control method thereof of diamond press.
Background technology
Since synthetic first diamond of China's on December 6th, 1963, more than existing 250 families of domestic production producer, annual capacity reaches 3,000,000,000 carats, accounts for more than seventy percent of world wide production at present, and diamond total output and export volume have occupied the first in the world.About ten thousand of the cubic apparatus super-pressure synthesizers that the present whole nation has mainly are distributed in ground such as Henan, Hunan, Beijing, Hebei, Liaoning, Anhui, Zhejiang, Guangxi.
The adamantine output in the world and consumption are annual all faster to be higher than 10% speed increment, particularly top grade, high-quality, high strength, the growth of coarse grained diamond demand.
Yet according to customs statistics, China still has several hundred million carats high grade diamond dependence on import every year, and main because domestic diamond synthesizing process and equipment thereof are lower, the diamond of production mostly is low product grade diamond.Over several years, the cubic hinge press of unique distinct Chinese characteristics and synthesis technique have been obtained very great development, but the overall technology level of China's diamond industry has big gap and the trend that progressively widens is arranged with external advanced level.
Offshore companies such as the ILJIN of the Winter company of external De Beers company (Britain), GE company (U.S.), Germany, Dongming company of Japan and Sumitomo company, Korea S and SANMEI company are still in occupation of leading position.What the diamond synthesis press of external main flow adopted is single potential source three pillar type belt type press of the U.S., adopted advanced computer automatic control system mostly, stability that has realized press super-pressure and superhigh temperature preferably and repeatability have guaranteed that technological parameter multistage continually varyings such as pressure, temperature control automatically.Except the greater advantage of aspects such as Tool and Die Technology, synthesis technique level, diamond press and control technology have played decisive role.GE company and De Beers have monopolized high-grade adamantine market, the world substantially.
Diamond press mainly is the cubic hinge press of China, external belt type press.China's belt type press is introduced Sweden 18MN press since the eighties, the German KLOCKNER 50MN of company press, and U.S. 50MN press, Finland 18MN press, the German Winter 60MN of company press, always expensive 900,000,000 RMB, but still do not have the unit ordinary production so far.The reasons such as imperfect, technical monopoly, ability to provide the auxiliary items is not enough, the related industry technical merit is low of introducing technology make production cost height, production domesticization difficulty big.
Minority producers such as at present domestic existing Shanghai Heavy Machinery Plant make the 30MN belt type press, but the scale of making, using is all less, and cost an arm and a leg (the 30MN belt type press of Shanghai Heavy Machinery Plant quotation in 2006 3500000 RMB/platform cover).For cubic hinge press, the present domestic numerous producers such as Hunan Flydisc New Material Co., Ltd., the north, Inner Mongol heavy industry group that have, produce the product of 500 millimeters, 560 millimeters, 620 millimeters, 650 millimeters cylinder diameters in large quantity, quotation was at 50～600,000 RMB/platform cover in 2006.
The maximization of diamond press is the inexorable trend that China's diamond fabrication already develops.National Torch Plan project " UDS-III type man-made diamond pressing machine " has been developed the maximization diamond press of 6 * 34.5MN.The tangible large scale development trend of this domestic press certainly will make original numerous subpress and faces and eliminate and idle, and the upgrading of these equipment and technological transformation are extremely urgent.
The basic principle of typical cubic apparatus, top, two sides man-made diamond pressing machine is identical, all form by host computer system, electric-control system, hydraulic system, accessory system, power is provided by hydraulic system, fluid pressure by hydraulic system to booster, master cylinder, after being delivered to the top hammer by master cylinder again, affact the synthetic pressure condition of diamond that forms on the synthetic piece that synthesizes the chamber in the synthetic chamber again.
The hydraulic system principle of typical cubic apparatus, top, two sides man-made diamond pressing machine is essentially identical.It is made up of axial plunger pump, booster, two seven logical valves, six oil cylinders etc., the control accuracy of realization assurance pressurize, ftercompction, feeding (list of references: [1] Fang Xiaohu. Chinese superhard material new technology and development. Hefei: publishing house of Chinese University of Science and Technology, 2004; [2] Qin Yu, institute makes the country prosperous. the import and export situation of Chinese superhard material and goods thereof. and diamond and grinding materials and grinding tool engineering .2003, (6): 70-74).
The patent of home and abroad has been done a lot of explorations around relevant many aspects such as electric control system, Automatic Control Strategy, hydraulic pressure components and parts and hydraulic system mostly with research.Particularly, various measures and method have been taked in the most important pressure stability link of man-made diamond pressing machine---pressurize link.Such as: improve hermetically-sealed construction and material and reduce leakage rate and increase the reliability of sealing; Adopt large and small pump configuration, reduce the pressure oscillation amplitude with little pump repairing; Directly replace pressurized cylinder to reduce and leak link with super-pressure pump; The measures such as accuracy of adopting advanced control system and advanced control strategy to come controlled pressure make the pressure precision of present man-made diamond pressing machine booster arrival end reach 0.1MPa.
The power value precision of at present domestic press apparatus reaches 0.4%, represents the countries such as Japan, Germany and Sweden of diamond production advanced level, present diamond equipment power value precision remains on ± 0.5%～1% level on.The target of the application's device be power value precision be expected to reach ± 0.2%.
But what diamond press used all is conventional hydraulic system, is based on that the hydraulic transmission principle of sealing, throttling control, positive displacement pump sets up.The pressure output of the hydraulic pump of positive displacement has pressure fluctuation, is sealed with and leaks and inefficacy, and throttling has heating and noise.If the power of diamond press derives from conventional hydraulic system fully, on principle, just can not thoroughly solve a series of problems such as pressurize is unreliable, ftercompction fluctuation, pressure drift, accurately control difficulty, energy consumption is big, noise is big, heating is many.
The present invention is just at the ultra-high static pressure fluid power system characteristics of diamond press, and the essential defective proposition of conventional diamond press, make full use of the fluid dynamic of the power and the pulseless accurate fluid power source of existing hydraulic system, fundamentally eliminate the pressure variation that pressure fluctuation causes, the bigger minimizing or the pressure that causes of thoroughly stopping a leak descend on the principle, and device noise is little and heating is few.
The terminal pressure precise control device of diamond press of the present invention is exactly according to the desired pressure condition of conventional man-made diamond pressing machine, between accurate fluid power source and hydraulic system, carry out powershift, be expected to make the desired pressure condition of present man-made diamond pressing machine to be greatly improved, realize more accurate hyperpressure control, new process conditions are provided for diamond is synthetic.Pressure precise control device and control method thereof based on diamond press of the present invention will provide new tool may for the exploration of diamond new technique for synthesizing, for new way is opened up in the production of high quality diamond, for China's transformation, upgrading of existing diamond press at present provides possible technological reserve, have broad application prospects.
Summary of the invention
The pressure precise control device and the control method that the purpose of this invention is to provide a kind of diamond press of reliability service, this device can be connected and realize the accurate control of terminal pressure with the man-made diamond pressing machine of routine, for its terminal provides stable, accurate pressure.The power that the present invention makes full use of existing hydraulic system promotes advancing fast of master cylinder or booster and moves back at initial and final unloading phase, pressure when diamond is synthetic accurately the control stage adopt the fluid dynamic of pulseless accurate fluid power source, the pressure that reaches in the synthetic chamber is stabilized on the desired condition of technology exactly.
The terminal pressure precise control device of a kind of diamond press of the present invention, carry out the hydrokinetic switching between accurate fluid power source and the hydraulic system, connect accurate fluid power source and hydraulic system, and the fluid dynamic of accurate fluid power source and hydraulic system is delivered on the synthetic piece of diamond when synthetic.
A kind of structure of terminal pressure precise control device of the present invention is medium isolation cylinder, separator piston, booster, hydraulic system connector, hydraulic control valve composition.Medium isolation cylinder arrival end is connected the accurate fluid power source, and the port of export is connected the inlet of booster, and the port of export of booster is connected master cylinder and hydraulic system connector, and the hydraulic system connector is connected hydraulic control valve and hydraulic system; The separator piston of its medium isolation cylinder is isolated the fluid media (medium) of the accurate fluid power source that arrival end connects with the hydraulic oil medium that is connected the booster end, the hydraulic system connector is arranged on the port of export of booster.
The another kind of structure of terminal pressure precise control device of the present invention is made up of medium isolation cylinder, separator piston, power output piston, hydraulic system connector, hydraulic control valve.Its medium isolation cylinder arrival end is connected accurate fluid power source, and the hydraulic oil medium in the fluid media (medium) of the accurate fluid power source that the separator piston of medium isolation cylinder connects arrival end and two chambeies on power output piston both sides is isolated.A hydraulic system connector of its medium isolation cylinder is arranged in the chamber between separator piston and the power output piston, and outside the range of medium isolation cylinder, and connects with hydraulic control valve and hydraulic system; Its another hydraulic system connector is arranged in another chamber in two chambeies on both sides of power output piston, and outside the range of power output piston, and connect with hydraulic control valve and hydraulic system, two chambeies on the both sides of power output piston all are full of hydraulic oil and connect by hydraulic system connector and hydraulic system.
The control method of the terminal pressure precise control device of a kind of diamond press of the present invention: the pressure in the synthetic chamber when diamond is synthetic is controlled by the accurate fluid power source, the big stroke of the master cylinder of diamond press or booster is by HYDRAULIC CONTROL SYSTEM, and hydraulic control valve is carried out the powershift between hydraulic system and the accurate fluid power source.
Hydraulic system of the present invention is meant the existing hydraulic system of common diamond press, and under the situation of the accurate fluid power source that does not have indication of the present invention, this hydraulic system can satisfy the requirement to the pressure variation of existing, conventional diamond press.That is to say that when not having the accurate fluid power source of indication of the present invention, diamond press can operate as normal by existing process conditions, finishes the process route of setting.
The accurate fluid power source of indication of the present invention is meant: the fluid dynamic that offers diamond press does not have pressure fluctuation, the steadily reliable hydrodynamic source of power output, the hydrokinetic source of accurate fluid power source is not based on the power output of traditional hydraulic pump (plunger displacement pump, vane pump, gear pump etc. conventional positive displacement pump), does not have to use the periodically pulsing of the inevitable pressure of above-mentioned hydraulic pump institute (as to apply for a patent: the fluid power plant of 200510128068.9 indications).
For diamond press, pressure, the temperature conditions in the synthetic cavity determined synthetic quality and the output of diamond.The master cylinder of diamond press begin to promote to push up hammer near and contact the starting stage of synthesizing piece, the master cylinder operating ratio of diamond press is very fast, load is also less; Begin to promote to push up the terminal stage that hammer breaks away from and leave synthetic piece at the master cylinder of diamond press, the master cylinder operation is also than comparatively fast, and load is also less.Under above-mentioned two kinds of situations, all be the operation of big stroke, system's fluid pressure required precision is lower, hammers into shape as long as guarantee to live the top according to certain speed and definite distance location.Simultaneously, the hydraulic system of diamond press also has similar fast advance and retreat operation to the operation of booster, also can be included in this starting stage or terminal stage.
But, after the top hammer touches synthetic piece, the end of top hammer will transmit accurate power source and be applied to power on the synthetic piece, make that to form one in the synthetic chamber of sealing stable and steadily and the pressure condition of accurate variation finally can make diamond synthesize in excellent crystalline region.Just need one this moment can provide the accurate fluid power source of steady pressure (as to apply for a patent: the fluid power plant of 200510128068.9 indications), and the device and method that accurately transmits this accurate pressure, the key that the present invention addresses this problem just.
The accurate fluid power source does not have the pressure fluctuation of conventional hydraulic power source and leakage step-down problem seldom, one of accurate fluid power source output stable, stably, the pressure that accurately changes.
The pressure precise control device of diamond press of the present invention, can between conventional hydraulic system and accurate fluid power source, steadily switch, can be connected and realize the accurate control of terminal pressure with the man-made diamond pressing machine of routine, for its terminal provides stable, accurate pressure, reach the desired condition of diamond synthesizing process.
The pressure precise control device of diamond press of the present invention has the interface of hydraulic system and accurate fluid power source respectively, and is provided with hydraulic control valve at the interface of hydraulic system.When the accurate fluid power source begins power is provided, hydraulic control valve can cut off being connected of power of hydraulic system and the oil cylinder of diamond press, simultaneously, pressure precise control device of the present invention is transferred to the end of diamond press with the power of accurate fluid power source, until being communicated on the synthetic piece.When not needing the accurate fluid power source to begin power is provided, hydraulic control valve can be opened being connected of power of hydraulic system and the oil cylinder of diamond press, and this moment, the accurate fluid power source can stop to provide accurate fluid power.
The pressure precise control device of diamond press of the present invention designs from pressure switching and pressure pipeline, and following two kinds of versions are provided.
A kind of structure of terminal pressure precise control device of the present invention is medium isolation cylinder, separator piston, booster, hydraulic system connector, hydraulic control valve composition.
The arrival end of above-mentioned this medium isolation cylinder is connected the accurate fluid power source, and the port of export is connected the inlet of booster, and the port of export of booster is connected master cylinder and hydraulic system connector, and the hydraulic system connector is connected hydraulic control valve and hydraulic system.The separator piston of its medium isolation cylinder is isolated the fluid media (medium) of the accurate fluid power source that arrival end connects with the hydraulic oil medium that is connected the booster end, the hydraulic system connector is arranged on the port of export of booster, and the hydraulic system connector is connected master cylinder, hydraulic control valve and the hydraulic system of diamond press.
Its medium isolation cylinder is separated the hydrokinetic pressure transmission medium of accurate fluid power source and the hydraulic oil medium of booster, simultaneously the pressure of accurate fluid power source is delivered to the arrival end of booster, the port of export of booster is connecting the inlet of the master cylinder of diamond press, master cylinder transfers the pressure on the top hammer of diamond press, and the top hammer transfers the pressure on the synthetic piece of diamond press again.
The hydraulic system connector is the passage that the medium of hydraulic system flows into and flows out, also be hydraulic control valve and hydraulic system with the pressure transmission of medium isolation cylinder of the present invention, switching, end be communicated with interface.
The another kind of version of the terminal pressure precise control device of diamond press of the present invention is made up of auxiliary elements such as medium isolation cylinder, separator piston, power output piston, hydraulic system connectors.Its medium isolation cylinder one end connects the accurate fluid power source, and the other end is hammered into shape by the top that the power output piston is directly connecting diamond press, and the top hammer transfers the pressure on the synthetic piece of diamond press again.
The separator piston of the medium isolation cylinder of this version will connect the fluid media (medium) of an end of accurate fluid power source and the hydraulic oil medium of hydraulic system is isolated, the hydraulic system connector is arranged in two chambeies on both sides of power output piston, and the hydraulic system connector connects hydraulic system.Two chambeies on power output piston both sides all are full of hydraulic oil and all communicate with the hydraulic system connector.
The separator piston maximum displacement of the medium isolation cylinder of this version is meant the furthest travel of the separator piston that the fluid media (medium) of accurate fluid power source promotes.Be arranged on the separator piston of medium isolation cylinder and the hydraulic system connector between the power output piston outside the separator piston maximum displacement, allow the medium of accurate fluid power source and hydraulic system not gang up.The hydraulic system connector in another chamber in two chambeies on both sides that is arranged on the power output piston is outside the maximum displacement of power output piston, and the pressure oil of hydraulic system can enter fast when allowing the power output piston return fast.
Hydraulic system connector position will guarantee the unimpeded of two chambeies on both sides of the power output piston when accurate fluid power source and hydraulic system powershift and hydraulic system, and can not allow the medium of accurate fluid power source and the medium of hydraulic system gang up.
The control method of the terminal pressure precise control device of a kind of diamond press of the present invention: the pressure in the synthetic chamber when diamond is synthetic is controlled by the accurate fluid power source, the big stroke of the master cylinder of diamond press or booster is by HYDRAULIC CONTROL SYSTEM, and hydraulic control valve is carried out the powershift between hydraulic system and the accurate fluid power source.
The pressure stage of accurate fluid power source control, just pressure accurately the control stage be meant pressurization, pressurize, release stage in the diamond synthesizing process, the pressure size in the whole process, pressure need accurately control action time.This stage has directly determined synthetic quality and the quantity of diamond.Other above-mentioned stage refer in the diamond building-up process opening the beginning matched moulds, F.F., the rewind down stage of mode step section are moved back in unloading, pressure does not need accurate control, just push up the Stroke Control of the big displacement of hammer, the motion control of the big stroke of the master cylinder of diamond press or booster just.
Fluid dynamic precise control device of the present invention and method have realized, when needing pressure accurately to control in the diamond synthesizing process, carry out accurate pressure control by the accurate fluid power source, when not needing pressure accurately to control, provide power to realize the Stroke Control of the big displacement of low precision such as F.F. and rewind down by hydraulic system.Thoroughly guaranteed the accurate process conditions of man-made diamond pressing machine, technical support can be provided for the diamond of high-quality high production is synthetic.
Description of drawings
Fig. 1 is the schematic diagram of a kind of structure of fluid dynamic precise control device;
Fig. 2 is the schematic diagram of the another kind of structure of fluid dynamic precise control device;
Specific embodiment
Being illustrated in figure 1 as a kind of version of the terminal pressure precise control device of diamond press, is by medium isolation cylinder 101, separator piston 104, booster 102, hydraulic system connector 103, and auxiliary element such as connecting pipe is formed.The input of medium isolation cylinder 101 connects the delivery outlet of accurate fluid power source by pipeline, the output of medium isolation cylinder 101 connects the input port of booster 102, the separator piston 104 of medium isolation cylinder 101 will be communicated with the fluid media (medium) of accurate fluid power source and keep apart with the hydraulic oil medium of the booster 102 that communicates, fluid pressure after the supercharging of booster 102 by fluid media (medium) and pipeline transmission in the master cylinder of diamond press, the hydraulic system connector is arranged on the master cylinder porch, and the hydraulic system connector connects hydraulic control valve and hydraulic system.
Medium isolation cylinder 101 among Fig. 1 is separated the hydrokinetic pressure transmission medium 103 of accurate fluid power source and the hydraulic oil medium 105 of booster 102, simultaneously the pressure of accurate fluid power source is delivered to the arrival end of the booster 102 of diamond press, the port of export of booster 102 is connecting the inlet of master cylinder, master cylinder transfers the pressure on the top hammer of diamond press, and the top hammer transfers the pressure to the synthetic chamber of diamond press again.
Be illustrated in figure 2 as the another kind of version of the terminal pressure precise control device of diamond press, form by medium isolation cylinder 201, separator piston 202, power output piston 204, hydraulic system connector 206 and 207, the arrival end of medium isolation cylinder 201 is connecting the accurate fluid power source, the other end is hammered into shape by the top that power output piston 204 is directly connecting diamond press, and the top hammer transfers the pressure on the synthetic piece of diamond press again.
The separator piston 202 of the medium isolation cylinder 201 of this version will connect the fluid media (medium) 208 of an end of accurate fluid power source and the hydraulic oil 203 of hydraulic system is isolated, hydraulic system connector 207 is arranged in two chambeies, front and back of power output piston 204, and hydraulic system connector 206 all is being connected hydraulic system with 207.Two chambeies, front and back of power output piston 204 all be full of hydraulic oil 203 and 205 and and hydraulic system connector 207 and 206 communicate.
Separator piston 202 maximum displacements shown in Figure 2 are meant the furthest travel of the separator piston 202 that the fluid media (medium) of accurate fluid power source promotes.Be arranged on the separator piston 202 of medium isolation cylinder 201 and the hydraulic system connector 207 between the power output piston 204, the position is outside the maximum displacement of separator piston 202, and separator piston 202 and power output piston 204 can not cover hydraulic system connector 207, the medium 208 of accurate fluid power source and hydraulic system can not ganged up mutually with 203 like this, and the pressure oil of hydraulic system can enter fast during 204 fast feeds of power output piston.
The hydraulic system connector 206 in another chamber in two chambeies on both sides that is arranged on power output piston 204 is outside the maximum displacement of power output piston 204, be that hydraulic system connector 206 can not communicate in same chamber with hydraulic system connector 207, and power output piston 204 can not cover hydraulic system connector 206, and the pressure oil of hydraulic system can enter fast when power output piston 204 was return fast like this.
Hydraulic system connector position will guarantee the unimpeded of two chambeies on both sides of the power output piston when accurate fluid power source and hydraulic system powershift and hydraulic system, and can not allow the medium of accurate fluid power source and the medium of hydraulic system gang up.
The structure of the terminal pressure precise control device of diamond press shown in Figure 1, its role mainly is the isolation of medium, the hyperpressure that the accurate fluid power source of man-made diamond pressing machine produces, by arrival end pressure is passed to the oily medium that piston is isolated, amplify in (cubic hinge press the six) master cylinder (six cylinders) be transferred to diamond press through booster again, fuel feeding when the advance and retreat of the master cylinder of the responsible big stroke of hydraulic system and the retraction of booster, hydraulic control valve (hydraulic control one-way valve) is responsible for the switching between accurate fluid power source power and the hydraulic system power.Its advantage is that the accurate fluid power source system only need be operated under the pressure about 12MPa, is that about 9 booster amplifies by pressure ratio, can reach the operating pressure of the specified 120MPa of diamond press commonly used.Even suitably voltage supply of accurate fluid power source system or increase pressure ratio just can be easy to satisfy the operating pressure higher slightly than 120MPa, and not needing the accurate fluid power source system to be operated in hyperpressure state about 12MPa always, the manufacturing cost of accurate fluid power source system greatly descends.
The structure of the terminal pressure precise control device of diamond press shown in Figure 2, fuel feeding when hydraulic system is responsible for the big stroke of power output piston 204, hydraulic control valve (hydraulic control one-way valve) is responsible for the switching between accurate fluid power source power and the hydraulic system power.Mainly forming of terminal pressure precise control device by three parts, separator piston 202 has been isolated accurate fluid power source medium and hydraulic system oil medium, separator piston 202 is promoted by the pressure of accurate fluid power source medium behind hydraulic closure system, separator piston 202 promotes oily medium, propulsion power output piston 204 and pressure being directly acted on the synthetic piece of diamond press again, the accurate fluid power source system just can carry out the accurate pressure control of the super-pressure of terminal like this.
Its advantage is that the pulseless pressure of accurate fluid power source can keep always and is delivered to terminal, has avoided the leakage link of booster and master cylinder, and pressure transmission is direct, pressure precision is high, the entire system designs simplification.But the operating pressure senior general of accurate fluid power source maintains very high pressure limit, and manufacturing cost is higher, and the structure of medium isolation cylinder is complicated.
Organization plan of the present invention can be according to actual needs, comprehensive various factors carries out structure Design and selects.
The ripe analytical method of fluid dynamic control that required research means of the present invention and research method can be used for reference present routine, and referential a large amount of control strategy that is applied to fluid dynamic control field, relevant research contents and technological means also do not exceed existing technical scope.Processing can be purchased or design to the needed software and hardware equipment of enforcement of the present invention, and required books and reference materials can obtain.Proposition of the present invention has theoretical foundation and actual demand, possessed research and create conditions, enforcement of the present invention is feasible.
The present invention be directed to the ultra-high static pressure fluid power system characteristics of diamond press, and the essential defective proposition of conventional diamond press, make full use of the fluid dynamic of the power and the pulseless accurate fluid power source of existing hydraulic system, fundamentally eliminate the pressure variation that pressure fluctuation causes, significantly reduced and leaked the pressure oscillation that link is brought.The present invention has realized more accurate hyperpressure control, for new way has been opened up in the formation of diamond new technique for synthesizing condition, for China's transformation, upgrading of existing diamond press at present provides possible technological reserve, has broad application prospects.
Claims (6)
1. the terminal pressure precise control device of a diamond press, it is characterized in that: carry out the hydrokinetic switching between accurate fluid power source and the hydraulic system, connect accurate fluid power source and hydraulic system, and the fluid dynamic of accurate fluid power source and hydraulic system is delivered on the synthetic piece of diamond when synthetic.
2. according to the terminal pressure precise control device under the claim 1, it is characterized in that: a kind of structure of this device is medium isolation cylinder, separator piston, booster, hydraulic system connector, hydraulic control valve composition, medium isolation cylinder arrival end is connected the accurate fluid power source, the port of export is connected the inlet of booster, the port of export of booster is connected master cylinder and hydraulic system connector, and the hydraulic system connector is connected hydraulic control valve and hydraulic system.
3. according to the medium isolation cylinder under the claim 2, it is characterized in that: the separator piston of medium isolation cylinder is isolated the fluid media (medium) of the accurate fluid power source that arrival end connects with the hydraulic oil medium that is connected the booster end, the hydraulic system connector is arranged on the port of export of booster.
4. according to the terminal pressure precise control device under the claim 1, it is characterized in that: the another kind of structure of this device is made up of medium isolation cylinder, separator piston, power output piston, hydraulic system connector, hydraulic control valve, medium isolation cylinder arrival end is connected the accurate fluid power source, and the hydraulic oil medium in the fluid media (medium) of the accurate fluid power source that the separator piston of medium isolation cylinder connects arrival end and two chambeies on power output piston both sides is isolated.
5. according to the medium isolation cylinder under the claim 4, it is characterized in that: a hydraulic system connector of medium isolation cylinder is arranged in the chamber between separator piston and the power output piston, and outside the range of medium isolation cylinder, and connect with hydraulic control valve and hydraulic system; Another hydraulic system connector is arranged in another chamber in two chambeies on both sides of power output piston, and outside the range of power output piston, and connects with hydraulic control valve and hydraulic system; Two chambeies on the both sides of power output piston all are full of hydraulic oil and connect by hydraulic system connector and hydraulic system.
6. the control method of the terminal pressure precise control device of a diamond press, it is characterized in that: the pressure in the synthetic chamber when diamond is synthetic is controlled by the accurate fluid power source, the big stroke of the master cylinder of diamond press or booster is by HYDRAULIC CONTROL SYSTEM, and hydraulic control valve is carried out the powershift between hydraulic system and the accurate fluid power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610167505 CN101007253A (en) | 2006-12-27 | 2006-12-27 | Terminal pressure accurate control device of diamond pressure machine and controlling method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200610167505 CN101007253A (en) | 2006-12-27 | 2006-12-27 | Terminal pressure accurate control device of diamond pressure machine and controlling method |
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| CN101007253A true CN101007253A (en) | 2007-08-01 |
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| CN 200610167505 Pending CN101007253A (en) | 2006-12-27 | 2006-12-27 | Terminal pressure accurate control device of diamond pressure machine and controlling method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756489A (en) * | 2011-04-25 | 2012-10-31 | 许宏 | Electrically driven hydraulic press |
| CN102755858A (en) * | 2011-04-25 | 2012-10-31 | 许宏 | Electrically-driven diamond press |
| CN114618383A (en) * | 2022-03-14 | 2022-06-14 | 郑州中南杰特超硬材料有限公司 | Novel hydraulic system of hinge type cubic press for superhard material synthesis |
| CN116608165A (en) * | 2023-07-20 | 2023-08-18 | 北京科技大学 | Ultralow pulse high-pressure fluid generating device and method |
-
2006
- 2006-12-27 CN CN 200610167505 patent/CN101007253A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756489A (en) * | 2011-04-25 | 2012-10-31 | 许宏 | Electrically driven hydraulic press |
| CN102755858A (en) * | 2011-04-25 | 2012-10-31 | 许宏 | Electrically-driven diamond press |
| CN102755858B (en) * | 2011-04-25 | 2016-07-13 | 许宏 | The electrically driven (operated) diamond press of a kind of band |
| CN114618383A (en) * | 2022-03-14 | 2022-06-14 | 郑州中南杰特超硬材料有限公司 | Novel hydraulic system of hinge type cubic press for superhard material synthesis |
| CN116608165A (en) * | 2023-07-20 | 2023-08-18 | 北京科技大学 | Ultralow pulse high-pressure fluid generating device and method |
| CN116608165B (en) * | 2023-07-20 | 2023-10-13 | 北京科技大学 | Ultralow pulse high-pressure fluid generating device and method |
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