CN107939754A - A kind of single-crystal diamond Superhigh Pressure Hydraulic System - Google Patents

A kind of single-crystal diamond Superhigh Pressure Hydraulic System Download PDF

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Publication number
CN107939754A
CN107939754A CN201710947894.9A CN201710947894A CN107939754A CN 107939754 A CN107939754 A CN 107939754A CN 201710947894 A CN201710947894 A CN 201710947894A CN 107939754 A CN107939754 A CN 107939754A
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CN
China
Prior art keywords
pressure
hydraulic
volume
linear
pressure release
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Granted
Application number
CN201710947894.9A
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Chinese (zh)
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CN107939754B (en
Inventor
吴晓磊
赵延军
赵炯
徐帅
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Zhengzhou Research Institute for Abrasives and Grinding Co Ltd
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Zhengzhou Research Institute for Abrasives and Grinding Co Ltd
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Priority to CN201710947894.9A priority Critical patent/CN107939754B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B3/00Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/20Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205Systems with pumps

Abstract

The present invention relates to a kind of single-crystal diamond Superhigh Pressure Hydraulic System, including the corresponding work cylinder structure with working chamber and reseting cavity and and working chamber, reseting cavity corresponds to the hydraulic system of connection, hydraulic system includes the pressure relief pipe connected with the working chamber, pressure relief pipe includes being used for the first pressure release branch of fuel tank connection and being connected the second pressure release branch of linear pressure release unit, first pressure release branch is equipped with unloading pressure control valve, linear pressure release unit includes volume booster, volume booster has the linear change volume for being used for being connected by the second pressure release branch with the working chamber in pressure release, the volume booster has for making the volume size of linear change volume linearly increasing when linear variable volume is connected by the second pressure release branch with working chamber to realize the decompression stroke of linear voltage decreasing.When needing decompression, the gradual increase of the linear change volume by controlling screw press device, effectively realizes that linear voltage decreasing operates.

Description

A kind of single-crystal diamond Superhigh Pressure Hydraulic System
Technical field
The invention belongs to the field of application super-pressure method manufacture diamond, and in particular to a kind of single-crystal diamond super-pressure Hydraulic system.
Background technology
Large size single crystal diamond Superhigh Pressure Hydraulic System belongs to superelevation press forming device, and typical is exactly cubic apparatus hydraulic pressure Machine and belt type press, are to drive corresponding hard alloy top hammer extruded alloy material to produce high pressure by hydraulic system, and Heating generation high temperature is carried out by mortgaging high-power electric current, is molded synthetic material.
Hydraulic system used in super-pressure pressue device is realized typically by frequency control boosts, and then passes through control The break-make of corresponding solenoid valve realizes decompression, as disclosed in Chinese utility model patent that Authorization Notice No. is CN201502584U A kind of cubic press for synthesis of synthetic diamonds hydraulic system, it is mainly provided super by high-pressure oil pump to work cylinder structure High pressure liquid pressure oil, drives working cylinder arrangement works, and work cylinder structure herein usually has to be separated by corresponding piston structure Working chamber and reseting cavity, be pumped into high pressure oil into working chamber, working cylinder structure output carries out top pressure, and come in and go out liquid into reseting cavity Pressure oil then can control the pressure release of work cylinder structure to reset, and in release return stroke, pass through control and work cylinder structure respective cavities The break-make of the solenoid valve of connection realizes pressure release oil return, since the break-make of solenoid valve is interrupted, the corresponding pressure release of pressure leak process Curve is in staged, and the break-make that stagewise gradient is smaller to represent solenoid valve is more frequent, and this staged pressure release can not realize linear drop Pressure, and the frequent break-make of solenoid valve also easily breaks down, control is also complex, and failure rate is of a relatively high, has been unable to meet height Simple, slope decompression of control that grade large size single crystal diamond preparation field proposes etc. requires.
The content of the invention
It is an object of the invention to provide a kind of single-crystal diamond Superhigh Pressure Hydraulic System, to solve liquid of the prior art Pressure system is by controlling the frequent break-make of solenoid valve to lead to not the technical problem for realizing linear voltage decreasing.
To achieve the above object, the technical solution 1 of single-crystal diamond Superhigh Pressure Hydraulic System provided by the present invention is:One Kind of single-crystal diamond Superhigh Pressure Hydraulic System, including corresponding work cylinder structure with working chamber and reseting cavity and with work Chamber, reseting cavity correspond to connection to control the hydraulic system that the work cylinder structure pressurized operation, pressure release reset, and hydraulic system includes The pressure relief pipe connected with the working chamber, pressure relief pipe include for the first pressure release branch with fuel tank connection and are connected wired Second pressure release branch of property pressure release unit, the first pressure release branch are equipped with unloading pressure control valve, and linear pressure release unit includes spiral increasing There is the linear change for being used for being connected by the second pressure release branch with the working chamber in pressure release to hold for depressor, volume booster Product, the volume booster, which has, to be used to make linearly to become when linear variable volume is connected by the second pressure release branch with working chamber The volume size for changing volume is linearly increasing to realize the decompression stroke of linear voltage decreasing.
Improved on the basis of above-mentioned technical proposal 1 and obtain technical solution 2:The second pressure release branch is equipped with pressure release When the linear relief valve that turns on, the linear change volume of the volume booster also passes through pressure piping and connects with the working chamber Logical, pressure piping is arranged in parallel with the second pressure release branch, and volume booster, which also has, to be used to make the linear change volume Volume size linearly reduce and realize the supercharging stroke that linearly pressurizes, pressure piping, which is equipped with, to be used to making described in hydraulic oil flows to The supercharging check valve of working chamber.
Improved on the basis of above-mentioned technical proposal 2 and obtain technical solution 3:The linear relief valve for electromagnet cut off valve or Hand stop valve.
Improved on the basis of above-mentioned technical proposal 2 and obtain technical solution 4:The hydraulic system further include for it is described Working chamber is connected to detect the pressure gauge and/or pressure transmitter of work cavity pressure.
Improved on the basis of any one of above-mentioned technical proposal 1 to 4 and obtain technical solution 5:The unloading pressure control valve is Solenoid valve or hand-operated valve.
Improved on the basis of above-mentioned technical proposal 2 or 3 or 4 and obtain technical solution 6:The hydraulic system is filled including low pressure Liquid pump and filling liquid reversal valve, the filling liquid reversal valve have what is connected to the oil inlet of low pressure charging pump connection, with corresponding fuel tank to return Hydraulic fluid port and two working holes, one of them in two working holes is the backhaul work connected by return line with the reseting cavity Mouthful, another be the filling liquid working hole that is connected by charging line with the linear change volume of the volume booster, filling liquid pipe Road, which is equipped with, makes hydraulic oil flow to the filling liquid check valve of the linear change volume, filling liquid reversal valve have make filling liquid working hole with The filling liquid working position of oil inlet connection and the backhaul working position for making backhaul working hole be connected with oil inlet, the spiral boosting utensil It is useful for making linear change volume is increased to fill in linear change volume filling liquid of the low pressure charging pump to volume booster Liquid stroke.
Improved on the basis of above-mentioned technical proposal 6 and obtain technical solution 7:The low pressure charging pump by pump liquid pipeline with The oil inlet of the filling liquid reversal valve connects, and overflow passage is connected with pump liquid pipeline.
Improved on the basis of above-mentioned technical proposal 6 and obtain technical solution 8:The low pressure charging pump by pump liquid pipeline with The oil inlet of the filling liquid reversal valve connects, and liquid-filled pressure gauge is connected with pump liquid pipeline.
Improved on the basis of above-mentioned technical proposal 6 and obtain technical solution 9:The screw press utensil has outer cylinder body and shifting Dynamic to be assemblied in outer cylinder body to form the interior direct acting part of the linear change volume, interior direct acting part is sequentially connected and is useful in driving The servomotor that direct acting part moves back and forth, hydraulic system are further included for being triggered by interior direct acting part to control the eharge stroke pole The backhaul travel switch of extreme position.
Improved on the basis of above-mentioned technical proposal 6 and obtain technical solution 10:The charging line and the pressure piping Connect to form the empty into pipeline of the working chamber pump liquid to work cylinder structure when the filling liquid reversal valve is in backhaul working position.
Improved on the basis of above-mentioned technical proposal 2 or 3 or 4 and obtain technical solution 11:The screw press utensil has outer Cylinder body and movement are assemblied in outer cylinder body to form the interior direct acting part of the linear change volume, and interior direct acting part is sequentially connected useful In the servomotor that direct acting part in driving moves back and forth.
Improved on the basis of above-mentioned technical proposal 11 and obtain technical solution 12:The hydraulic system is further included for by interior The movement of direct acting part is triggered to control the excess of stroke travel switch of the supercharging stroke limit position.
The beneficial effects of the invention are as follows:In hydraulic system provided by the present invention, spiral shell is connected in the second relief valve branch Pressurizer is revolved, when needing decompression, the gradual increase of the linear change volume by controlling screw press device, is effectively realized linear Reduced pressure operation, meets the linear voltage decreasing requirement of pressue device, overall control is relatively simple, can effectively avoid solenoid valve frequent movement And the failure and cost brought the problem of increasing, also overall oil temperature is relatively low.Realize while there is quick pressure releasing and slope is let out The large size single crystal diamond hydraulic system of pressure, it is convenient to be applied in device or other two sides tops or the cubic apparatus system of changing colour In.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of embodiment of single-crystal diamond Superhigh Pressure Hydraulic System provided by the present invention;
Fig. 2 is structure diagram when hydraulic system shown in Fig. 1 is in pressure release state.
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings, but is not limited thereto.
The specific embodiment of single-crystal diamond Superhigh Pressure Hydraulic System provided by the present invention, as shown in Figure 1 to Figure 2, should Hydraulic system in embodiment mainly includes work cylinder structure 9, low pressure charging pump 3 and volume booster 16, during pressurized operation, by Low pressure charging pump 3 pours low pressure liquid into the linear change volume of volume booster 16, is pressurized from volume booster 16 to work Ultrahigh-pressure hydraulic oil is poured in the working chamber 91 of cylinder structure 9, realizes pressurization ejection.
Specifically, working, cylinder structure is identical with work cylinder structure of the prior art, and details are not described herein.The present embodiment In, work cylinder structure specifically can use Authorization Notice No. to add for the super-pressure disclosed in the utility model patent of CN206168375U Press heating unit.
The structure of volume booster is identical with the structure of volume booster of the prior art, meets super-pressure, big stroke It is required that details are not described herein for concrete structure.In the present embodiment, spiral boosting implement body can use application publication number for The spiral servo pressurization device of super-pressure disclosed in the Chinese invention patent application of CN106523442A.
The central scope of hydraulic system in the present embodiment is not only to realize linear boosting using volume booster, together When, also linear voltage decreasing is realized using volume booster.
Hydraulic system includes above-mentioned work cylinder structure 9, and work cylinder structure 9 has corresponding working chamber 91 and reseting cavity 92, Corresponding work cylinder structure 9 is provided with hydraulic system, and hydraulic system includes low pressure charging pump 3, filling liquid reversal valve 6 and volume booster 16,9 pressurized operation of HYDRAULIC CONTROL SYSTEM work cylinder structure, pressure release reset, and low pressure charging pump 3 is driven by Special-purpose motor for oil pump 2.
Specifically, filling liquid reversal valve 6 is specially two position four-way valves, and filling liquid reversal valve has oil inlet, oil return opening and two A working hole, oil inlet are connected by pump liquid pipeline with low pressure charging pump 3, and pump liquid pipeline is equipped with filter 4, on pump liquid pipeline Overflow passage and liquid-filled pressure gauge 7 are also associated with, since the hydraulic oil in pump liquid pipeline is low pressure, liquid-filled pressure gauge 7 is selected low Pressure pressure table, overflow passage are used to connect with fuel tank, and corresponding safety overflow valve 5 is equipped with overflow passage, improves peace Full performance.Then correspondence connects the oil return opening of filling liquid reversal valve 6 with corresponding fuel tank, ensures oil return.
Filling liquid reversal valve 6 has two working holes, and one of working hole is by return line 400 and work cylinder structure The backhaul working hole that 9 reseting cavity 92 connects, another working hole are by charging line 100 and above-mentioned volume booster 16 The filling liquid working hole of linear change volume connection, also, being equipped with charging line 100 makes hydraulic oil flow to above-mentioned linear change The filling liquid check valve 14 of volume.
Above-mentioned filling liquid reversal valve 6 has the filling liquid working position for making filling liquid working hole be connected with oil inlet and backhaul is worked The backhaul working position that mouth is connected with oil inlet.
Also, it is used for correspondingly, above-mentioned volume booster 16 has in low pressure charging pump 3 to the linear of volume booster 16 Make linear change volume increased eharge stroke during variable volume filling liquid, in fact, screw press device 16 has outer cylinder body and shifting Dynamic to be assemblied in outer cylinder body to form the interior direct acting part of the linear change volume, interior direct acting part is sequentially connected and is useful in driving Direct acting part move back and forth servomotor 18,18 rotating of servomotor and by precision speed reduction device drive in direct acting part back and forth move It is dynamic, due in being needed in pump liquid the movement of direct acting part to expand linear change volume, so, hydraulic system is further included for by interior The triggering of direct acting part is played the role of stroke protection, is avoided to control the backhaul travel switch 17 of the eharge stroke extreme position Interior direct acting part crosses the damage that position movement is brought.
The linear change volume of above-mentioned volume booster 16 is connected by pressure piping 200 and the working chamber of work cylinder structure 9 It is logical, the supercharging check valve 12 for being used for making hydraulic oil flow to above-mentioned working chamber is equipped with pressure piping 200, volume booster 16 has It is useful for making the volume size of the linear change volume linearly to reduce with realizing the supercharging stroke linearly to pressurize, in fact, right Stroke should be pressurized, equipped with for controlling the excess of stroke stroke of the supercharging stroke limit position to open by interior direct acting part movement triggering 15 are closed, to play the role of corresponding overtravel protection.
In fact, the hydraulic system in the present embodiment includes the pressure relief pipe connected with the working chamber for the cylinder structure 9 that works, let out Pressure pipe road specifically includes the first pressure release branch 500 for being connected with fuel tank and is connected the second pressure release point of linear pressure release unit Road 300, the first pressure release branch 500 are equipped with unloading pressure control valve 8, and unloading pressure control valve herein is specially hand-operated valve, the second pressure release Branch 300 is equipped with the linear relief valve 13 turned in pressure release, and linear relief valve 13 is specially to realize that corresponding pressure release branch is led Logical hand stop valve, it is corresponding, volume booster then have be used for linear variable volume by the second pressure release branch 300 with Working chamber 91 makes the volume size of linear change volume linearly increasing to realize the decompression stroke of linear voltage decreasing when connecting.
In addition, it is necessary to explanation, above-mentioned charging line 100 are connected with filling liquid reversal valve 6 with pressure piping 200 The empty into pipeline of the working chamber pump liquid to work cylinder structure 9 is formed when backhaul working position, at this time, filling liquid is completed, also, servo Motor 18 stalls, and so, the hydraulic oil gradually risen is by the supercharging check valve 12 opened on pressure piping and enters work In the working chamber of cylinder structure 9, reseting cavity is connected by filling liquid reversal valve 6 with fuel tank, may be such that the power output of work cylinder structure 9 Part Quick air into, improve efficiency of movement.
In addition, hydraulic system further includes the high-pressure manometer 10 for being used to detect work cavity pressure with working cylinder fabric connectivity And pressure transmitter 11.
During the hydraulic work system that the present embodiment is provided, mainly have filling liquid, it is empty into, four pressure control, backhaul courses of work, Lower mask body introduces each course of work.
Filling liquid:In filling liquid, Special-purpose motor for oil pump 2 starts, and drives low pressure charging pump 3 to work by shaft coupling and produces low pressure Hydraulic oil, 6 coil blackout of filling liquid reversal valve, in Fig. 1 filling liquid working position, due to the Opening pressure ratio of filling liquid check valve 14 Small more of Opening pressure of check valve 12 are pressurized, are closed when by manual linear relief valve 13, while servomotor 18 inverts, it is logical Crossing accurate retarding machine 19 drives the interior direct acting part of screw press device 16 to move down, its corresponding linear change volume gradually increases Greatly, therefore, low-pressure hydraulic oil enters the linear change of screw press device 16 by filter 4, filling liquid reversal valve 6, filling liquid check valve 14 Change in volume, until the interior direct acting part in screw press device 16 touches downwards backhaul travel switch 17, complete to screw press The filling liquid of device.
It is empty into:Herein it is empty into refer to work cylinder structure 9 it is empty into, it is empty into when, Special-purpose motor for oil pump 2 starts, and passes through connection Axis device driving low pressure fuel pump 3 work produce low-pressure hydraulic oil, 6 coil blackout of filling liquid reversal valve, in Fig. 1 institute filling liquid work Position, manual linear relief valve 13 are closed, also, the power-off of servomotor 18 stops, and unloading pressure control valve 8 is closed, therefore low pressure oil Liquid enters in the working chamber of work cylinder structure 9 by filter 4, filling liquid reversal valve 6, filling liquid check valve, supercharging check valve, i.e. hydraulic pressure Oil enters in working chamber through empty in-line, and the reseting cavity for the cylinder structure that works then flows into fuel tank by filling liquid reversal valve 6, realizes work The Quick air of cylinder structure into.
Pressure control:In pressure control, Special-purpose motor for oil pump 2 stops, and manual linear relief valve 13 is closed, manual pressure release control Valve 8 is closed, and servomotor 18 rotates forward, and the interior direct acting part for driving screw press device 16 by accurate retarding machine 19 moves up, and fills The linear change volume of full liquid is gradually reduced, and forms high-voltage oil liquid, enters work by the supercharging check valve 12 on pressure piping In the working chamber for making cylinder structure 9, control work cylinder structure output corresponding sports with give workpiece apply pressure, the high pressure of formation Fluid is up to 150MPa, due to coordinating screw press device combination pressurization using servomotor, it can be achieved that servo pressurization, pressure control Precision is less than 0.1MPa, it can realize linear pressurization.
Backhaul:In pressure release backhaul, have two ways as needed it can be selected that one kind be not required slope decompression, one Kind is to need slope to be depressured.
When slope decompression is not required, using being directly depressured, unloading pressure control valve 8 manual first at this time is opened, and realization is let out Pressure, waits manual linear relief valve 13 after the completion of pressure release to open, while Special-purpose motor for oil pump 2 starts, and servomotor 18 stops, and fills Liquid reversal valve 6 is powered, and in the backhaul station shown in Fig. 2, the filtered device 4 of low pressure fluid, filling liquid reversal valve 6 enter working cylinder knot The reseting cavity of structure 9, enters fuel tank by the hydraulic oil liquid of the working chamber for the cylinder structure that works through manual unloading pressure control valve valve 8, complete Into return stroke.
When needing slope to be depressured, linear relief valve 13 manual first is opened, while Oil pump electrical machinery 2 starts, two four Electric change valve 6 is powered, and in the backhaul station shown in Fig. 2, the filtered device 4 of low pressure fluid, filling liquid reversal valve 6 enter work In the reseting cavity of cylinder structure 9, work cylinder structure 9 working chamber in super-pressure fluid handle dynamic linear relief valve 13 with it is spiral The linear change volume of pressurizer 16 is connected, and servomotor 18 inverts at this time, and screw press device is driven by accurate retarding machine 19 16 interior direct acting part moves down, linear change volume it is linearly increasing, and then realize slope be depressured, due to using servomotor The mode that screw press device combines is added to be depressured, it can be achieved that system slope is depressured, slope is depressured after completion, manual pressure release Control valve 8 is opened, and the hydraulic oil of the working chamber for the cylinder structure 9 that works enters fuel tank through manual unloading pressure control valve 8, realizes that pressure release is returned Journey.
In the present embodiment, by controlling servomotor rotating, the reciprocal shifting of the interior direct acting rod piece of screw press device is realized It is dynamic, and then realize that the linear increase of the linear change volume of screw press device and linear reduction, linear change volume herein refer to Be its volume change it is linear(A little error does not count), and then can realize linear pressurization and linear voltage decreasing requirement, Overall control is relatively simple, and slope decompression, Costco Wholesale is relatively low, and oil temperature is relatively low, also, is realized using control manually The switch motion of corresponding unloading pressure control valve and linear relief valve, realizes while has quick pressure releasing and a large scale of slope pressure release Single-crystal diamond hydraulic system, it is convenient to be applied in change colour device or other two sides tops or cubic apparatus system.
In the present embodiment, screw press device is applied not only to realize linear supercharging, applies also for linear voltage decreasing.In other realities Apply in example, linear voltage decreasing can also be realized merely with screw press device, and phase is realized using excess pressure pump or other supercharging devices The extra high pressure charging answered, at this time, the linear change volume of screw press device need not pass through pressure piping and work cylinder structure again Working chamber connection, it is only necessary to by corresponding pressure relief pipe with work cylinder structure working chamber connect.
In the present embodiment, unloading pressure control valve and linear relief valve are hand-operated valve.In other embodiments, or electricity Magnet valve.
In the present embodiment, realized and be pressurized using volume booster, in other embodiments, super-pressure pump can also be utilized real Now pressurize, as long as realizing linear voltage decreasing using volume booster.

Claims (10)

1. a kind of single-crystal diamond Superhigh Pressure Hydraulic System, including corresponding work cylinder structure with working chamber and reseting cavity and Connection corresponding with working chamber, reseting cavity is to control the hydraulic system that the work cylinder structure pressurized operation, pressure release reset, hydraulic pressure system System includes the pressure relief pipe connected with the working chamber, it is characterised in that:Pressure relief pipe includes being used for first connected with fuel tank Pressure release branch and the second pressure release branch for connecting linear pressure release unit, the first pressure release branch are equipped with unloading pressure control valve, linearly Pressure release unit includes volume booster, and volume booster, which has, to be used to pass through the second pressure release branch and the working chamber in pressure release The linear change volume of connection, the volume booster, which has, to be used to pass through the second pressure release branch and work in linear variable volume Chamber makes the volume size of linear change volume linearly increasing to realize the decompression stroke of linear voltage decreasing when connecting.
2. single-crystal diamond Superhigh Pressure Hydraulic System according to claim 1, it is characterised in that:The second pressure release branch The linear relief valve turned in pressure release is equipped with, the linear change volume of the volume booster also passes through pressure piping and institute Working chamber connection is stated, pressure piping is arranged in parallel with the second pressure release branch, and volume booster, which also has, to be used to make the line Property variable volume volume size linearly reduce and realize the supercharging stroke that linearly pressurizes, pressure piping, which is equipped with, to be used to make hydraulic pressure Supercharging check valve of the oil stream to the working chamber.
3. single-crystal diamond Superhigh Pressure Hydraulic System according to claim 2, it is characterised in that:The linear relief valve is Electromagnet cut off valve or hand stop valve.
4. single-crystal diamond Superhigh Pressure Hydraulic System according to claim 2, it is characterised in that:The hydraulic system is also wrapped Include for being connected with the working chamber to detect the pressure gauge and/or pressure transmitter of work cavity pressure.
5. single-crystal diamond Superhigh Pressure Hydraulic System as claimed in any of claims 1 to 4, it is characterised in that:Institute It is solenoid valve or hand-operated valve to state unloading pressure control valve.
6. the single-crystal diamond Superhigh Pressure Hydraulic System according to Claims 2 or 3 or 4, it is characterised in that:The hydraulic pressure system System include low pressure charging pump and filling liquid reversal valve, the filling liquid reversal valve have to low pressure charging pump connect oil inlet, with it is corresponding The oil return opening and two working holes of fuel tank connection, one of them in two working holes connect to pass through return line with the reseting cavity Logical backhaul working hole, another be the filling liquid work connected by charging line with the linear change volume of the volume booster Make mouth, charging line is equipped with the filling liquid check valve for making hydraulic oil flow to the linear change volume, and filling liquid reversal valve has and makes The filling liquid working position that filling liquid working hole is connected with oil inlet and the backhaul working position for making backhaul working hole be connected with oil inlet, it is described Volume booster, which has, to be used to make linear change in linear change volume filling liquid of the low pressure charging pump to volume booster The increased eharge stroke of volume.
7. single-crystal diamond Superhigh Pressure Hydraulic System according to claim 6, it is characterised in that:The screw press utensil There are outer cylinder body and movement to be assemblied in outer cylinder body to form the interior direct acting part of the linear change volume, interior direct acting part is sequentially connected The servomotor for driving interior direct acting part to move back and forth is useful for, hydraulic system is further included for being triggered by interior direct acting part to control State the backhaul travel switch of eharge stroke extreme position.
8. single-crystal diamond Superhigh Pressure Hydraulic System according to claim 6, it is characterised in that:The charging line and institute Pressure piping connection is stated to form the working chamber pump liquid to work cylinder structure when the filling liquid reversal valve is in backhaul working position It is empty into pipeline.
9. the single-crystal diamond Superhigh Pressure Hydraulic System according to Claims 2 or 3 or 4, it is characterised in that:It is described it is spiral plus There is depressor outer cylinder body and movement to be assemblied in outer cylinder body to form the interior direct acting part of the linear change volume, and interior direct acting part passes The dynamic servomotor being connected with for driving interior direct acting part to move back and forth.
10. single-crystal diamond Superhigh Pressure Hydraulic System according to claim 9, it is characterised in that:The hydraulic system is also Excess of stroke travel switch including controlling the supercharging stroke limit position for moving triggering by interior direct acting part.
CN201710947894.9A 2017-10-12 2017-10-12 A kind of single-crystal diamond Superhigh Pressure Hydraulic System Active CN107939754B (en)

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CN111054810A (en) * 2019-12-03 2020-04-24 天津市天锻压力机有限公司 Ultrahigh pressure working system of flexible forming medium of liquid-filling forming equipment

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