CN106050772B - A kind of master cylinder hydraulic pressure system of fast and stable - Google Patents

A kind of master cylinder hydraulic pressure system of fast and stable Download PDF

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Publication number
CN106050772B
CN106050772B CN201610671545.4A CN201610671545A CN106050772B CN 106050772 B CN106050772 B CN 106050772B CN 201610671545 A CN201610671545 A CN 201610671545A CN 106050772 B CN106050772 B CN 106050772B
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Prior art keywords
valve
solenoid directional
directional control
mouths
control valve
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CN106050772A (en
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杨帮军
朱道泉
王冬仙
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Jiangsu Yangli Hydraulic Equipment Co.,Ltd.
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Jiangsu Guoli Forging Machine Tool Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The present invention relates to a kind of master cylinder hydraulic pressure system of fast and stable, including the piston cylinder being connected with slider top center and be connected with four corners of sliding block first, two, three, four plunger cases, wherein first, two plunger cases are arranged in diagonal, 3rd, four plunger cases are arranged in diagonal, piston cylinder and each plunger case provide pressure oil by main pump module respectively, the epicoele of piston cylinder and first, two, three, the rod cavity of four plunger cases is connected by pressure match module with epicoele oil pipe respectively, the cavity of resorption of piston cylinder is connected with lower cavity oil pipe, epicoele oil pipe and lower cavity oil pipe are connected by high-precision control module with main pump module respectively, the control fluid of main pump module and high-precision control module is both from control fluid voltage stabilizing oil pipe, control fluid voltage stabilizing oil pipe is with controlling the outlet of fluid supply source module to be connected.The master cylinder hydraulic pressure system can make the action of each step of sliding block quicker, sensitive, stably.

Description

A kind of master cylinder hydraulic pressure system of fast and stable
Technical field
The present invention relates to a kind of hydraulic press, the master cylinder hydraulic pressure system of more particularly to a kind of fast and stable.
Background technology
One do action of sliding block of hydraulic press is substantially as follows:Under fast, work enter, pressurize, pressurize, pressure release and backhaul.It is existing Hydraulic system when under fast, the fast lower valve of oil cylinder cavity of resorption is inserted valve, and the openings of sizes of fast lower valve can not be adjusted, cause it is fast under Speed can not be adjusted.Certainly manual adjustment rod also is carried on some inserting valve covers, can be adjusted by manual rotation adjusting rod The openings of sizes of valve is saved, but this regulation can only be with sensation, without data reference；Put, need on still more many lathe pumping plants Want operator to climb up to climb down, it has not been convenient to adjust.
The device that cylinder upper cavity oil completes topping up when under sliding block is fast is replenishing valve, the more difficult control of soft, hard degree of its spring System.Spring hardness is excessive, it is fast under when, epicoele needs larger self-suction to open replenishing valve, causes to descend acceleration to diminish soon, Slowed under fast, it could even be possible to inhaling not open, under fast；Spring hardness is too small, and replenishing valve is closed slowly, and lathe sliding block exists Changed a job under fast into when stagnation behavior occurs, after replenishing valve is completely closed, just can enter state into work.
Pressure process, most common system depended on pressure relay regulating system pressure target value, such system has no pressure Precision can say, can only with the regulation of pressure gauge probably, read pressure value.Relative accuracy it is high any, be furnished with system epicoele Sets target value on pressure sensor, touch-screen, when system pressure reaches desired value, pressure sensor sends signal, passes through PLC inter-process, control miniature relay obtain, dead electricity so that control magnet coil to obtain, dead electricity, this it is a series of action disappeared The time of consumption, pressure value is caused overshoot phenomenon occur.The fluid that i.e. oil pump is exported is continued on oil cylinder in this period Chamber, final pressure value is more than setting value, and pressure precision is poor.
Pressure maintaining period is protected using valve, and valve body itself has certain leakage rate, the leakage that fluid can be by these valves slowly Fall, Pressure Retention is poor.
After pressurize, system enters pressure release state, typically can all select the replenishing valve with pre- unloading functions, but unload mouth in advance Size be it is fixed, venting duration setting it is short, pressure release is insufficient, during backhaul exist impact；The length of venting duration setting, can With abundant pressure release, but efficiency is low.And the control oil of pressure release comes from main flow, changes with the fluctuation of main flow, acts unstable. During backhaul, system builds pressure valve for inserted valve, and valve element leans on spring reset, and response speed is slow.
The content of the invention
It is an object of the present invention to overcome problems of the prior art, there is provided a kind of master cylinder hydraulic pressure of fast and stable System, can make the action of each step of sliding block quicker, sensitive, stably.
For solve above technical problem, a kind of master cylinder hydraulic pressure system of fast and stable of the invention, including with slider top The piston cylinder 1 of heart connection and first, second, third and fourth plunger case being connected with four corners of sliding block, wherein first and second plunger case is in Diagonal arranges that third and fourth plunger case arranges that the piston cylinder and each plunger case are carried by main pump module CF1 respectively in diagonal For pressure oil, the rod cavity of the epicoele of the piston cylinder and first, second, third and fourth plunger case passes through pressure match module respectively CF4 is connected with epicoele oil pipe G2, and the cavity of resorption of the piston cylinder 1 is connected with lower cavity oil pipe G3, epicoele oil pipe G2 and the cavity of resorption oil Pipe G3 is connected by high-precision control module CF3 with the main pump module CF1 respectively, and the main pump module CF1 and high accuracy are controlled Molding block CF3 control fluid is both from control fluid voltage stabilizing oil pipe G4, the control fluid voltage stabilizing oil pipe G4 and control oil Liquid supply source module CF2 outlet is connected.
Relative to prior art, the present invention achieves following beneficial effect：Piston cylinder 1 be responsible for sliding block it is fast under, work enters, protects Pressure, pressure release and backhaul, first, second, third and fourth plunger case can pressurize to sliding block, wherein input makes first and second plunger case in pairs With third and fourth plunger case is come into operation in pairs, and the post of piston cylinder and different groups can be selected by pressure match module CF4 Plug cylinder is arranged in pairs or groups, and the tonnage of master cylinder is switched over so as to realize.Main pump module CF1 by high-precision control module CF3 to Epicoele oil pipe G2 and lower cavity oil pipe G3 fuel feeding, the control fluid of hydraulic system are provided by control fluid supply source module CF2, can not Discontinuously by controlling fluid voltage stabilizing oil pipe G4 to provide the control fluid of sufficient, pressure stability, being that main system is quick, stable moves Solid foundation is established.
As the improvement of the present invention, the main pump module CF1 includes first, second and third servopump B1, B2, B3, first and second, The suction inlet of three servopumps is connected with fuel tank respectively, and the outlet of the first servopump passes through the first check valve D1 and pressure oil fuel feed pump G1 Entrance be connected, the outlet of the second servopump is connected by the second check valve D2 with pressure oil fuel feed pump G1 entrance, and the 3rd watches The outlet for taking pump is connected by the 3rd check valve D3 with pressure oil fuel feed pump G1 entrance, the pressure oil fuel feed pump G1 and first Dynamic valve C1 entrance is connected, and the described first dynamic valve C1 outlet is connected with fuel tank, the described first dynamic valve C1 hydraulic control mouthful A It is connected by choke valve with the first solenoid directional control valve YV1 A mouths, the hydraulic control mouthful B of the first dynamic valve passes through choke valve and the The B mouths of one solenoid directional control valve are connected, and the P mouths of the first solenoid directional control valve are connected with the control fluid voltage stabilizing oil pipe G4, the first electricity The T mouths of magnetic reversal valve are connected with fuel tank；The pressure oil fuel feed pump G1 is connected by the first overflow valve F1 with fuel tank, and described first Solenoid directional control valve YV1 is two four-way electromagnetic reversing valves that slide valve function is D types.The present invention can be according to the need of lathe tonnage Will, select the servopump matched to devote oneself to work, can tonnage quick on the touchscreen, that compactly selecting machine tool needs, nothing Pressure need to be converted to by tonnage, reset pressure and be worth to required tonnage.When the first solenoid directional control valve YV1 dead electricity, the One dynamic valve C1 is quickly opened, and pressure oil fuel feed pump G1 runs through the first dynamic valve C1 to fuel tank off-load；When the first electromagnetism is changed When obtaining electric to valve YV1, the first dynamic valve C1 quick closedowns, pressure oil fuel feed pump G1 builds rapidly pressure；In pressure oil fuel feed pump G1 If pressure value goes beyond the limit of value, such as beyond 28Mpa, then the first overflow valve F1 is opened, to fuel tank overflow.The present invention can be real When now being worked with different tonnages, ram speed is consistent.For example when 100T works are entered, the first servopump B1 work, epicoele oil pipe G2's Fluid enters the rod cavity of third and fourth plunger case；When 200T works are entered, the second servopump B2 work, epicoele oil pipe G2 fluid enters The rod cavity of first, second, third and fourth plunger case；When 300T works are entered, first and second servopump B1, B2 work, epicoele oil pipe G2 fluid Into the epicoele of piston cylinder；When 400T works are entered, second and third servopump B2, B3 work, epicoele oil pipe G2 fluid enter piston cylinder Epicoele and third and fourth plunger case rod cavity；When 500T works are entered, first, second and third servopump B1, B2, B3 works, epicoele oil Pipe G2 fluid enters the epicoele of piston cylinder and the rod cavity of first, second, third and fourth plunger case.
As a further improvement on the present invention, the control fluid supply source module CF2 includes control fluid plunger pump B4, filter Oily device L1, the 4th check valve D4, accumulator X1, the first stop valve J1 and the second stop valve J2, the control fluid plunger pump B4 Suction inlet be connected with fuel tank, the outlet of the control fluid plunger pump B4 passes through the oil filter L1 and the 4th check valve D4 It is connected, the outlet of the 4th check valve D4 enters with the accumulator X1, the first stop valve J1 and the second stop valve J2 respectively Mouth is connected, and the outlet of the first stop valve J1 is connected with fuel tank, outlet and the control fluid of the second stop valve J2 Voltage stabilizing oil pipe G4 is connected.Control before fluid plunger pump B4 work, close the first stop valve J1, open the second stop valve J2, fluid After plunger pump B4 starts, on the one hand control fluid flow to accumulator X1 through oil filter L1, the 4th check valve D4, on the one hand by the Two stop valve J2 enter control fluid voltage stabilizing oil pipe G4, then flow to each control mouth, are that the control action of next step is ready.When After the fluid of traffic organising mouthful is full of control fluid voltage stabilizing oil pipe G4, fluid will all flow to accumulator X1.Accumulator X1's Automatic inflatable liquid can make the oil pressure in control fluid voltage stabilizing oil pipe G4 stable.Control fluid voltage stabilizing oil pipe G4 is independently arranged, greatly The big pressure stability for improving control fluid, the control of each control valve can quickly and stably be controlled by being provided for main system Fluid.
As a further improvement on the present invention, the outlet of the control fluid plunger pump B4 passes through the second overflow valve F2 and oil Case is connected, and the hydraulic control mouthful of second overflow valve is connected by the second solenoid directional control valve YV2 with fuel tank, second electromagnetic switch Valve is 2/2-way solenoid directional control valve；The outlet of the 4th check valve D4 is also connected by the 3rd overflow valve F3 with fuel tank；Institute State and first pressure table BP1 and first pressure sensor CP1, second solenoid directional control valve are installed on the inlet duct of accumulator YV2 break-make is controlled by the pressure value that the first pressure sensor is measured.Control fluid voltage stabilizing oil pipe G4 and accumulator X1 exist In filling process, pressure gradually rises, the pressure value measured as first pressure sensor CP1 higher than setting high level for example higher than During 15Mpa, the second solenoid directional control valve YV2 dead electricity, the fluid of control fluid plunger pump B4 outputs passes through the second overflow valve F2 off-loads. Main system was worked after a period of time, and the fluid being stored in accumulator X1 has been lost, pressure by each control valve events Constantly reduction, when the pressure value that first pressure sensor CP1 is measured is less than setting low value such as less than 12Mpa, the second electromagnetism Reversal valve YV2 obtains electric, and fluid continues to be filled with accumulator X1 again, pressure increase, so constantly repeatedly automatic repairing, makes control Oil pressure in fluid voltage stabilizing oil pipe G4 is stable in 12Mpa~15Mpa.3rd overflow valve F3 plays a part of safety valve, the first pressure Power table BP1 is used for the authenticity for detecting pressure value, and data reference is provided for maintenance.
As a further improvement on the present invention, the high-precision control module includes the second dynamic valve C2 and proportional flow control valve YAA, the second dynamic valve C2 entrance is connected with the pressure oil fuel feed pump G1, the second dynamic valve C2 outlet and epicoele oil Pipe G2 is connected, and the epicoele oil pipe G2 is connected with the entrance of the proportional flow control valve YAA, proportional flow control valve YAA outlet and oil Case is connected；The hydraulic control mouthful A of the second dynamic valve C2 is connected by choke valve with the 5th solenoid directional control valve YV5 A mouths, and described the The hydraulic control mouthful B of two dynamic valves is connected by choke valve with the B mouths of the 5th solenoid directional control valve, the P mouths of the 5th solenoid directional control valve and institute State control fluid voltage stabilizing oil pipe G4 to be connected, the T mouths of the 5th solenoid directional control valve are connected with fuel tank；The epicoele oil pipe G2 is provided with Two pressure gauge BP2 and second pressure sensor CP2, the 5th solenoid directional control valve YV5 are two four-way electromagnetics that slide valve function is Y types Reversal valve.When the 5th solenoid directional control valve YV5 obtains electric, control fluid opens rapidly the second dynamic valve C2, pressure oil fuel feed pump G1 In pressure oil run through the pressure oil that the second dynamic valve C2 enters in epicoele oil pipe G2, epicoele oil pipe G2 and can pass through pressure Matching module CF4 enters the epicoele of the piston cylinder or the rod cavity of first, second, third and fourth plunger case, under progress sliding block is fast. System enters pressure release state after pressurize, and now proportional flow control valve YAA obtains electric opening, proportional flow control valve YAA openings of sizes with The voltage of input is directly proportional, and only need to change numerical value on the touchscreen, just can easily change the opening of proportional flow control valve, carries out Quick and abundant pressure release；Avoid using the replenishing valve with pre- unloading functions, the size that mouth is unloaded because its is pre- is fixed, during pressure release Between set short, then pressure release is insufficient, during backhaul exist impact；Venting duration setting length, though can fully pressure release, efficiency is low.
As a further improvement on the present invention, the high-precision control module also includes the first inserted valve CZ1, the 3rd inserting Valve CZ3, the 4th inserted valve CZ4 and double active proportional throttle valve YAB, the 3rd inserted valve CZ3 entrance and the pressure oil fuel feeding Pipe G1 is connected, and the 3rd inserted valve CZ3 outlet throttles with the first inserted valve CZ1, the 4th inserted valve CZ4 and double active ratios respectively Valve YAB entrance is connected, and the first inserted valve CZ1 and double active proportional throttle valve YAB outlet are connected with fuel tank respectively, the Four inserted valve CZ4 outlet is connected with the lower cavity oil pipe G3；Double active proportional throttle valve YAB P mouths and the control fluid Voltage stabilizing oil pipe G4 is connected；First inserted valve CZ1 hydraulic control mouth respectively with the 4th overflow valve F4, the 5th overflow valve F5 entrance and the Three solenoid directional control valve YV3 P mouths are connected, and the 5th overflow valve F5 outlet is connected with the 3rd solenoid directional control valve YV3 A mouths, and the 3rd The outlet of solenoid directional control valve YV3 T mouths and the 4th overflow valve F4 is connected with fuel tank, and the 3rd solenoid directional control valve YV3 is guiding valve machine Can be D two four-way electromagnetic reversing valves；3rd inserted valve CZ3 hydraulic control mouthful is connected with shuttle valve D5 outlet, the shuttle valve D5 right side Entrance is connected with the 3rd inserted valve CZ3 outlet, and shuttle valve D5 left entry is connected with the 6th solenoid directional control valve YV6 A mouths, and the 6th Solenoid directional control valve YV6 P mouths are connected with the pressure oil fuel feed pump G1, and the 6th solenoid directional control valve YV6 T mouths are connected with fuel tank, 6th solenoid directional control valve YV6 is two four-way electromagnetic reversing valves that slide valve function is D types；4th inserted valve CZ4 hydraulic control mouthful with 7th Solenoid ball valve YV7 A mouths are connected, and the 7th Solenoid ball valve YV7 is two-bit triplet Solenoid ball valve, the 7th Solenoid ball valve YV7 P Mouth is connected with the lower cavity oil pipe G3, and the 7th Solenoid ball valve YV7 T mouths are connected with fuel tank；The lower cavity oil pipe G3 passes through the 6th Overflow valve F6 is connected with fuel tank.During sliding block backhaul：6th solenoid directional control valve YV6 obtains electric by the 3rd inserted valve CZ3 openings, the 7th electricity Magnetic ball valve YV7 obtain it is electric 4th inserted valve CZ4 is opened, the 3rd solenoid directional control valve YV3 dead electricity makes the first inserted valve CZ1 be controlled by the Pressure oil in four overflow valve F4, pressure oil fuel feed pump G1 enters in lower cavity oil pipe G3, passes through pressure match module CF4 control To the cavity of resorption fuel feeding of piston cylinder 1；When cavity of resorption return pressure is more than 25MPa, the 4th overflow valve F4 is opened so that the first inserted valve CZ1 is opened, and cavity of resorption oil circuit and fuel tank are communicated.When under sliding block is fast：6th solenoid directional control valve YV6 dead electricity and shuttle valve D5 ensure the jointly Three inserted valve CZ3 are closed；7th Solenoid ball valve YV7 obtains electric by the 4th inserted valve CZ4 openings, and double active proportional throttle valve YAB are obtained Electricity is opened so that master cylinder cavity of resorption and fuel tank are directly communicated, and sliding block is in without bearing state, under gravity, is moved downward.So Afterwards the 3rd solenoid directional control valve YV3 obtain it is electric the first inserted valve CZ1 is controlled by the 5th overflow valve F5, be it is fast under change a job into carrying out standard It is standby, reduce impact.Double active proportional throttle valve YAB openings of sizes is directly proportional to the voltage inputted, need to only repair on the touchscreen Change numerical value, just can easily change its opening so that the speed lower soon of sliding block is easy to adjust.Changed a job under sliding block is fast into when：The Three solenoid directional control valve YV3, which are kept as electricity, makes the first inserted valve CZ1 be controlled by the 5th overflow valve F5, double active proportional throttle valve YAB Dead electricity is closed, and master cylinder cavity of resorption oil return line cut-out, sliding block can not downwards be moved under Gravitative Loads, and pressure oil enters piston cylinder 1 Epicoele；When the pressure rise of the first inserted valve CZ1 hydraulic controls mouthful is to higher than cavity of resorption back pressure setting value 8MPa, the 5th overflow valve F5 Open so that the first inserted valve CZ1 is opened, cavity of resorption oil circuit and fuel tank are communicated, sliding block is under pressure oil effect, and work is entered at a slow speed.
As a further improvement on the present invention, double active proportional throttle valve YAB outlet and the second inserted valve CZ2 entrance It is connected, the second inserted valve CZ2 outlet is connected with fuel tank, the second inserted valve CZ2 is provided with aperture regulation handle, described second Inserted valve CZ2 hydraulic control mouthful is connected with the 4th solenoid directional control valve YV4 A mouths, and the 4th solenoid directional control valve YV4 P mouths are inserted with second The entrance for filling valve CZ2 is connected, and the 4th solenoid directional control valve YV4 T mouths are connected with fuel tank, and the 4th solenoid directional control valve YV4 is guiding valve machine Can be two four-way electromagnetic reversing valves of D types.Connect the second inserted valve CZ2 between double active proportional throttle valve YAB and fuel tank, Uninterrupted can be adjusted by the second inserted valve CZ2 aperture regulation handle in double active proportional throttle valve YAB failures； When under sliding block is fast, the 4th solenoid directional control valve YV4 obtains electric, opens the second inserted valve CZ2；Changed a job under fast into when, the 4th electromagnetism is changed To valve YV4 dead electricity, close the second inserted valve CZ2.
As a further improvement on the present invention, the pressure match module includes the 3rd dynamic valve C3, the 8th electromagnetic switch Valve YV8, the 9th solenoid directional control valve YV9 and the tenth solenoid directional control valve YV10, the described 3rd dynamic valve C3 entrance and the epicoele Oil pipe G2 is connected, and the described 3rd dynamic valve C3 outlet is connected with the epicoele of the piston cylinder；Described 3rd dynamic valve C3 liquid Control mouth A is connected by choke valve with the tenth solenoid directional control valve YV10 A mouths, and the hydraulic control mouthful B of the described 3rd dynamic valve passes through throttling Valve is connected with the B mouths of the tenth solenoid directional control valve, and the P mouths of the tenth solenoid directional control valve are connected with the control fluid voltage stabilizing oil pipe G4, The T mouths of tenth solenoid directional control valve are connected with fuel tank；Entrance of the epicoele of the piston cylinder also with the 6th dynamic valve C6 is connected, and the 6th Dynamic valve C6 outlet is connected with fuel tank, and the tenth solenoid directional control valve YV10 is that two four-way electromagnetics that slide valve function is Y types commutate Valve；The hydraulic control mouthful A of the 6th dynamic valve C6 is connected by choke valve with the 13rd solenoid directional control valve YV13 A mouths, and described the The hydraulic control mouthful B of six dynamic valves is connected by choke valve with the B mouths of the 13rd solenoid directional control valve, the P mouths of the 13rd solenoid directional control valve It is connected with the control fluid voltage stabilizing oil pipe G4, the T mouths of the 13rd solenoid directional control valve are connected with fuel tank, the 13rd solenoid directional control valve YV13 is two four-way electromagnetic reversing valves that slide valve function is D types；9th solenoid directional control valve YV9 P mouths and the epicoele oil pipe G2 is connected, and the 9th solenoid directional control valve YV9 T mouths are connected with fuel tank, the 9th solenoid directional control valve YV9 B mouths and first and second post The rod cavity of plug cylinder is connected, and the 9th solenoid directional control valve YV9 is two four-way electromagnetic reversing valves that slide valve function is EA types；8th electromagnetism Reversal valve YV8 P mouths are connected with the epicoele oil pipe G2, and the 8th solenoid directional control valve YV8 T mouths are connected with fuel tank, the 8th electromagnetism Reversal valve YV8 B mouths are connected with the rod cavity of third and fourth plunger case, and the 8th solenoid directional control valve YV8 is that slide valve function is EA types Two four-way electromagnetic reversing valves.When under sliding block is fast, when the tenth solenoid directional control valve YV10 obtains electric, control fluid opens rapidly the 3rd Pressure oil in dynamic valve C3, epicoele oil pipe G2 quickly enters the epicoele of piston cylinder by the 3rd dynamic valve C3；The 9th is electric simultaneously Magnetic reversal valve YV9 obtains electric, and the pressure oil in epicoele oil pipe G2 enters first and second plunger case by the 9th solenoid directional control valve YV9 Rod cavity.8th solenoid directional control valve YV8 obtains electric, the pressure oil in epicoele oil pipe G2 by the 8th solenoid directional control valve YV8 enter the 3rd, The rod cavity of four plunger cases, but the fluid that first, second and third servopump is provided far can not meet piston cylinder and each plunger case volume The need for change.Therefore, 13rd solenoid directional control valve YV13 is in power failure state when under sliding block is fast, and the 6th dynamic valve C6 is in Fluid in open mode, fuel tank constantly fills into the epicoele of piston cylinder, and the 6th dynamic valve open in usual need not overcome self-suction, make Sliding block descends that acceleration is big, speed is fast soon.Changed a job under sliding block is fast into when, the pressure oil in epicoele oil pipe G2 passes through the 3rd dynamic valve C3 The epicoele of piston cylinder is quickly entered, the 13rd solenoid directional control valve YV13 obtains electric, control fluid closes rapidly the 6th dynamic valve C6, makes The upper cavity pressure of piston cylinder 1 is obtained to raise rapidly.Instantly when cavity pressure is elevated above 8MPa, the 5th overflow valve F5 is opened so that first Inserted valve CZ1 is opened, and cavity of resorption oil circuit and fuel tank are communicated, and sliding block realizes that work is entered at a slow speed under pressure oil effect.6th dynamic valve C6 The 13rd solenoid directional control valve YV13 obtain it is electric after, rapid to close, the response time is fast, and controlling extent is high with reliability so that under fast Change a job into being not in stagnation behavior.
As a further improvement on the present invention, the rod cavity of first and second plunger case also simultaneously with the 7th dynamic valve C7, the Eight dynamic valve C8 entrance is connected, and the 7th dynamic valve C7, the 8th dynamic valve C8 outlet are connected with fuel tank respectively；Described 7th moves State valve C7 hydraulic control mouthful A is connected by choke valve with the 14th solenoid directional control valve YV14 A mouths, the hydraulic control of the described 7th dynamic valve Mouth B is connected by choke valve with the B mouths of the 14th solenoid directional control valve, P mouths and the control fluid of the 14th solenoid directional control valve Voltage stabilizing oil pipe G4 is connected, and the T mouths of the 14th solenoid directional control valve are connected with fuel tank, and the 14th solenoid directional control valve YV14 is slide valve function For two four-way electromagnetic reversing valves of D types；Described 8th dynamic valve C8 hydraulic control mouthful A passes through choke valve and the 15th electromagnetic switch Valve YV15 A mouths are connected, and the hydraulic control mouthful B of the described 8th dynamic valve is connected by choke valve with the B mouths of the 15th solenoid directional control valve, The P mouths of 15th solenoid directional control valve are connected with the control fluid voltage stabilizing oil pipe G4, the T mouths and fuel tank of the 15th solenoid directional control valve It is connected, the 15th solenoid directional control valve YV15 is two four-way electromagnetic reversing valves that slide valve function is D types.When under sliding block is fast, the tenth Four solenoid directional control valve YV14, the 15th equal dead electricity of solenoid directional control valve YV15, the 7th dynamic valve C7, the 8th dynamic valve C8 are normally opened, oil Fluid in case constantly fills into the rod cavity of first and second plunger case, the 7th dynamic valve C7, the 8th dynamic valve C8 open in usual without gram Self-suction is taken, sliding block is descended soon, acceleration is big, speed is fast.
As a further improvement on the present invention, the rod cavity of third and fourth plunger case also simultaneously with the 4th dynamic valve C4, the Five dynamic valve C5 entrance is connected, and the 4th dynamic valve C4, the 5th dynamic valve C5 outlet are connected with fuel tank respectively；Described 4th moves State valve C4 hydraulic control mouthful A is connected by choke valve with the 11st solenoid directional control valve YV11 A mouths, the hydraulic control of the described 4th dynamic valve Mouth B is connected by choke valve with the B mouths of the 11st solenoid directional control valve, P mouths and the control fluid of the 11st solenoid directional control valve Voltage stabilizing oil pipe G4 is connected, and the T mouths of the 11st solenoid directional control valve are connected with fuel tank, and the 11st solenoid directional control valve YV11 is slide valve function For two four-way electromagnetic reversing valves of D types；Described 5th dynamic valve C5 hydraulic control mouthful A passes through choke valve and the 12nd electromagnetic switch Valve YV12 A mouths are connected, and the hydraulic control mouthful B of the described 5th dynamic valve is connected by choke valve with the B mouths of the 12nd solenoid directional control valve, The P mouths of 12nd solenoid directional control valve are connected with the control fluid voltage stabilizing oil pipe G4, the T mouths and fuel tank of the 12nd solenoid directional control valve It is connected, the 12nd solenoid directional control valve YV12 is two four-way electromagnetic reversing valves that slide valve function is D types.When under sliding block is fast, the tenth One solenoid directional control valve YV11, the 12nd equal dead electricity of solenoid directional control valve YV12, the 4th dynamic valve C4, the 5th dynamic valve C5 are normally opened, oil Fluid in case constantly fills into the rod cavity of third and fourth plunger case, the 4th dynamic valve C4, the 5th dynamic valve C5 open in usual without gram Self-suction is taken, sliding block is descended soon, acceleration is big, speed is fast.Changed a job under sliding block is fast into when, the need for tonnage, selection the 4th move State valve C4, the 5th dynamic valve C5, the 6th dynamic valve C6, the 7th dynamic valve C7, the 8th dynamic valve C8 is normally opened or closes.Such as 100T When work is entered, the 13rd solenoid directional control valve YV13, the 14th solenoid directional control valve YV14, the 15th equal dead electricity of solenoid directional control valve YV15, 6th dynamic valve C6, the 7th dynamic valve C7, the 8th dynamic valve C8 are normally opened, the rod cavity of the epicoele of piston cylinder and first and second plunger case Pressure is not built；11st solenoid directional control valve YV11, the 12nd solenoid directional control valve YV12 electric, the 4th dynamic valve C4, the 5th dynamic Valve C5 is closed, and the rod cavity of third and fourth plunger case builds pressure.When 200T works are entered, the 13rd solenoid directional control valve YV13 dead electricity, the 6th dynamic Valve C6 is normally opened, and the epicoele of piston cylinder does not build pressure；11st solenoid directional control valve YV11, the 12nd solenoid directional control valve YV12, the 14th Solenoid directional control valve YV14, the 15th solenoid directional control valve YV15 electric, the 4th dynamic valve C4, the 5th dynamic valve C5, the 7th dynamic Valve C7, the 8th dynamic valve C8 are closed, and the rod cavity of first, second, third and fourth plunger case builds pressure.When 300T works are entered, the 11st electromagnetic switch Valve YV11, the 12nd solenoid directional control valve YV12, the 14th solenoid directional control valve YV14, the 15th equal dead electricity of solenoid directional control valve YV15, 4th dynamic valve C4, the 5th dynamic valve C5, the 7th dynamic valve C7, the 8th dynamic valve C8 are normally opened, first, second, third and fourth plunger case Rod cavity does not build pressure；13rd solenoid directional control valve YV13 obtains electric, and the 6th dynamic valve C6 is closed, and the epicoele of piston cylinder builds pressure.400T works When entering, the 14th solenoid directional control valve YV14, the 15th equal dead electricity of solenoid directional control valve YV15, the 7th dynamic valve C7, the 8th dynamic valve C8 is normally opened, and the rod cavity of first and second plunger case does not build pressure；11st solenoid directional control valve YV11, the 12nd solenoid directional control valve YV12, 13 solenoid directional control valve YV13 obtain electric, and the 4th dynamic valve C4, the 5th dynamic valve C5, the 6th dynamic valve C6 are closed, piston cylinder it is upper The rod cavity of chamber and third and fourth plunger case builds pressure.When 500T works are entered, the 11st solenoid directional control valve YV11, the 12nd solenoid directional control valve YV12, the 13rd solenoid directional control valve YV13, the 14th solenoid directional control valve YV14, the 15th solenoid directional control valve YV15 it is electric, Four dynamic valve C4, the 5th dynamic valve C5, the 6th dynamic valve C6, the 7th dynamic valve C7, the 8th dynamic valve C8 are closed, piston cylinder it is upper The rod cavity of chamber and first, second, third and fourth plunger case builds pressure.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description, accompanying drawing only provide with reference to Illustrate to use, be not used to the limitation present invention.
Fig. 1 is the hydraulic schematic diagram one of the master cylinder hydraulic pressure system of fast and stable of the present invention.
Fig. 2 is the hydraulic schematic diagram two of the master cylinder hydraulic pressure system of fast and stable of the present invention.
In figure：1. piston cylinder；The plunger cases of 2-1. first；The plunger cases of 2-2. second；The plunger cases of 2-3. the 3rd；The posts of 2-4. the 4th Plug cylinder；CF1. main pump module；CF2. fluid supply source module is controlled；CF3. pressure match module；CF4. high-precision control module； G1. pressure oil fuel feed pump；G2. epicoele oil pipe；G3. lower cavity oil pipe；G4. fluid voltage stabilizing oil pipe is controlled；X1. accumulator；B1. first Servopump；B2. the second servopump；B3. the 3rd servopump；B4. fluid plunger pump is controlled；D1. the first check valve；D2. second is single To valve；D3. the 3rd check valve；D4. the 4th check valve；D5. shuttle valve；F1. the first overflow valve；F2. the second overflow valve；F3. the 3rd Overflow valve；F4. the 4th overflow valve；F5. the 5th overflow valve；F6. the 6th overflow valve；C1. the first dynamic valve；C2. the second dynamic valve； C3. the 3rd dynamic valve；C4. the 4th dynamic valve；C5. the 5th dynamic valve；C6. the 6th dynamic valve；C7. the 7th dynamic valve；C8. the 8th Dynamic valve；CZ1. the first inserted valve；CZ2. the second inserted valve；CZ3. the 3rd inserted valve；CZ4. the 4th inserted valve；YV1. first is electric Magnetic reversal valve；YV2. the second solenoid directional control valve；YV3. the 3rd solenoid directional control valve；YV4. the 4th solenoid directional control valve；YV5. the 5th is electric Magnetic reversal valve；YV6. the 6th solenoid directional control valve；YV7. the 7th Solenoid ball valve；YV8. the 8th solenoid directional control valve；YV9. the 9th electromagnetism Reversal valve；YV10. the tenth solenoid directional control valve；YV11. the 11st solenoid directional control valve；YV12. the 12nd solenoid directional control valve；YV13. 13rd solenoid directional control valve；YV14. the 14th solenoid directional control valve；YV15. the 15th solenoid directional control valve；YAA. proportional flow control valve； YAB. double active proportional throttle valves；CP1. first pressure sensor；CP2. second pressure sensor；BP1. first pressure table； BP2. second pressure table；L1. oil filter；J1. the first stop valve；J2. the second stop valve.
Embodiment
As shown in figure 1, the master cylinder hydraulic pressure system of fast and stable of the present invention includes the piston cylinder 1 being connected with slider top center With the first plunger case 2-1, the second plunger case 2-2, the 3rd plunger case 2-3, the 4th plunger case 2- being connected with four corners of sliding block 4, wherein the first plunger case 2-1, the second plunger case 2-2 in diagonal arrange, the 3rd plunger case 2-3, the 4th plunger case 2-4 in pair Linea angulata arranges, piston cylinder and each plunger case provide pressure oil by main pump module CF1 respectively, the epicoele of piston cylinder and first and second, 3rd, the rod cavity of four plunger cases is connected by pressure match module CF4 with epicoele oil pipe G2 respectively, the cavity of resorption and cavity of resorption of piston cylinder 1 Oil pipe G3 is connected, and epicoele oil pipe G2 and lower cavity oil pipe G3 are connected by high-precision control module CF3 with main pump module CF1 respectively, Main pump module CF1 and high-precision control module CF3 control fluid are both from control fluid voltage stabilizing oil pipe G4, and control fluid is steady Pressuring oil pipe G4 is with controlling fluid supply source module CF2 outlet to be connected.
Piston cylinder 1 be responsible for sliding block it is fast under, work enter, pressurize, pressure release and backhaul, first, second, third and fourth plunger case can be with Sliding block is pressurizeed, wherein the first plunger case 2-1, the second plunger case 2-2 come into operation in pairs, the 3rd plunger case 2-3, the 4th plunger Cylinder 2-4 comes into operation in pairs, by pressure match module CF4 piston cylinder and the plunger case of different groups can be selected to be taken Match somebody with somebody, the tonnage of master cylinder is switched over so as to realize.Main pump module CF1 is by high-precision control module CF3 to epicoele oil pipe G2 With lower cavity oil pipe G3 fuel feeding, the control fluid of hydraulic system is provided by control fluid supply source module CF2, can passed through incessantly Control fluid voltage stabilizing oil pipe G4 to provide sufficient, the control fluid of pressure stability, be that heavily fortified point has been established in quick, the stable action of main system Real basis.
Main pump module CF1 includes the first servopump B1, the second servopump B2, the 3rd servopump B3, first, second and third servo The suction inlet of pump is connected with fuel tank respectively, and the outlet of the first servopump passes through the first check valve D1 and pressure oil fuel feed pump G1 entrance It is connected, the outlet of the second servopump is connected by the second check valve D2 with pressure oil fuel feed pump G1 entrance, the 3rd servopump Outlet is connected by the 3rd check valve D3 with pressure oil fuel feed pump G1 entrance, the dynamic valve C1's of pressure oil fuel feed pump G1 and first Entrance is connected, and the first dynamic valve C1 outlet is connected with fuel tank, and the first dynamic valve C1 hydraulic control mouthful A passes through choke valve and the first electricity Magnetic reversal valve YV1 A mouths are connected, and the hydraulic control mouthful B of the first dynamic valve is connected by choke valve with the B mouths of the first solenoid directional control valve, The P mouths of first solenoid directional control valve are connected with control fluid voltage stabilizing oil pipe G4, and the T mouths of the first solenoid directional control valve are connected with fuel tank；Pressure Power oil fuel feed pump G1 is connected by the first overflow valve F1 with fuel tank, and the first solenoid directional control valve YV1 is two that slide valve function is D types Four-way electromagnetic reversing valve.
The need for the present invention can be according to lathe tonnage, the servopump matched is selected to devote oneself to work, can be in touch-screen Upper tonnage quick, that compactly selecting machine tool needs, without being converted to pressure by tonnage, resets needed for pressure is worth to Tonnage.When the first solenoid directional control valve YV1 dead electricity, the first dynamic valve C1 is quickly opened, and pressure oil fuel feed pump G1 runs through One dynamic valve C1 is to fuel tank off-load；When the first solenoid directional control valve YV1 obtains electric, the first dynamic valve C1 quick closedowns, pressure oil is supplied Oil pipe G1 builds rapidly pressure；If the pressure value in pressure oil fuel feed pump G1 goes beyond the limit of value, such as beyond 28Mpa, then first overflows Flow valve F1 to open, to fuel tank overflow.
The present invention can realize that ram speed is consistent when being worked with different tonnages.For example when 100T works are entered, the first servopump B1 works, and epicoele oil pipe G2 fluid enters the rod cavity of third and fourth plunger case；When 200T works are entered, the second servopump B2 work, on Chamber oil pipe G2 fluid enters the rod cavity of first, second, third and fourth plunger case；When 300T works are entered, first and second servopump B1, B2 work Make, epicoele oil pipe G2 fluid enters the epicoele of piston cylinder；When 400T works are entered, second and third servopump B2, B3 work, epicoele oil Pipe G2 fluid enters the epicoele of piston cylinder and the rod cavity of third and fourth plunger case；When 500T works are entered, first, second and third servopump B1, B2, B3 work, and epicoele oil pipe G2 fluid enters the epicoele of piston cylinder and the rod cavity of first, second, third and fourth plunger case.
Fluid supply source module CF2 is controlled to include control fluid plunger pump B4, oil filter L1, the 4th check valve D4, accumulator X1, the first stop valve J1 and the second stop valve J2, control fluid plunger pump B4 suction inlet are connected with fuel tank, control fluid plunger pump B4 outlet is connected by oil filter L1 with the 4th check valve D4, the 4th check valve D4 outlet respectively with accumulator X1, first Stop valve J1 and the second stop valve J2 entrance are connected, and the first stop valve J1 outlet is connected with fuel tank, the second stop valve J2's Outlet is connected with control fluid voltage stabilizing oil pipe G4.
Control before fluid plunger pump B4 work, close the first stop valve J1, open the second stop valve J2, fluid plunger pump B4 After startup, on the one hand control fluid flow to accumulator X1 through oil filter L1, the 4th check valve D4, on the one hand passes through the second stop valve J2 enters control fluid voltage stabilizing oil pipe G4, then flows to each control mouth, is that the control action of next step is ready.Work as traffic organising After the fluid of mouth is full of control fluid voltage stabilizing oil pipe G4, fluid will all flow to accumulator X1.Accumulator X1 automatic inflatable Liquid can make the oil pressure in control fluid voltage stabilizing oil pipe G4 stable.Control fluid voltage stabilizing oil pipe G4 is independently arranged, is substantially increased The pressure stability of fluid is controlled, the control fluid of each control valve can quickly and stably be controlled by being provided for main system.
Control fluid plunger pump B4 outlet is connected by the second overflow valve F2 with fuel tank, and the hydraulic control mouthful of the second overflow valve is logical Cross the second solenoid directional control valve YV2 with fuel tank to be connected, the second solenoid directional control valve is 2/2-way solenoid directional control valve；4th check valve D4 Outlet be also connected by the 3rd overflow valve F3 with fuel tank；First pressure table BP1 and are installed on the inlet duct of accumulator One pressure sensor CP1, the second solenoid directional control valve YV2 break-make is controlled by the pressure value that first pressure sensor is measured.
Control fluid voltage stabilizing oil pipe G4 and accumulator X1 in filling process, pressure gradually rises, when first pressure sensing When the pressure value that device CP1 is measured is higher than high level is set for example higher than 15Mpa, the second solenoid directional control valve YV2 dead electricity controls fluid post The fluid of plug pump B4 outputs passes through the second overflow valve F2 off-loads.Main system worked after a period of time, was stored in accumulator X1 Fluid by it is each control valve events and be lost, pressure is constantly reduced, the pressure value measured as first pressure sensor CP1 During less than setting low value such as less than 12Mpa, the second solenoid directional control valve YV2 obtains electric, and fluid continues to be filled with accumulator X1 again, pressure Power increases, so constantly repeatedly automatic repairing, makes the oil pressure in control fluid voltage stabilizing oil pipe G4 stable in 12Mpa~15Mpa. 3rd overflow valve F3 plays a part of safety valve, and first pressure table BP1 is used for the authenticity for detecting pressure value, number is provided for maintenance According to reference.
High-precision control module includes the second dynamic valve C2 and proportional flow control valve YAA, the second dynamic valve C2 entrance and pressure Power oil fuel feed pump G1 is connected, and the second dynamic valve C2 outlet is connected with epicoele oil pipe G2, epicoele oil pipe G2 and proportional flow control valve YAA Entrance be connected, proportional flow control valve YAA outlet is connected with fuel tank；Second dynamic valve C2 hydraulic control mouthful A passes through choke valve and the Five solenoid directional control valve YV5 A mouths are connected, the B mouth phases that the hydraulic control mouthful B of the second dynamic valve passes through choke valve and the 5th solenoid directional control valve Even, the P mouths of the 5th solenoid directional control valve are connected with control fluid voltage stabilizing oil pipe G4, and the T mouths of the 5th solenoid directional control valve are connected with fuel tank； Epicoele oil pipe G2 is provided with second pressure table BP2 and second pressure sensor CP2, and the 5th solenoid directional control valve YV5 is slide valve function For two four-way electromagnetic reversing valves of Y types.
When the 5th solenoid directional control valve YV5 obtains electric, control fluid opens rapidly the second dynamic valve C2, pressure oil fuel feed pump G1 In pressure oil run through the pressure oil that the second dynamic valve C2 enters in epicoele oil pipe G2, epicoele oil pipe G2 and can pass through pressure Matching module CF4 enters the epicoele of piston cylinder or the rod cavity of first, second, third and fourth plunger case, under progress sliding block is fast.
System enters pressure release state after pressurize, and now proportional flow control valve YAA obtains electric opening, and proportional flow control valve YAA's opens Mouth size is directly proportional to the voltage inputted, only need to change numerical value on the touchscreen, just can easily change proportional flow control valve Opening, carries out quick and abundant pressure release；Avoid using the replenishing valve with pre- unloading functions, the size that mouth is unloaded because its is pre- is fixed , venting duration setting is short, then pressure release is insufficient, there is impact during backhaul；Venting duration setting length, though can fully pressure release, But efficiency is low.
High-precision control module also includes the first inserted valve CZ1, the 3rd inserted valve CZ3, the 4th inserted valve CZ4 and double actives Proportional throttle valve YAB, the 3rd inserted valve CZ3 entrance are connected with pressure oil fuel feed pump G1, the 3rd inserted valve CZ3 outlet difference Be connected with the first inserted valve CZ1, the 4th inserted valve CZ4 and double active proportional throttle valve YAB entrance, the first inserted valve CZ1 and Double active proportional throttle valve YAB outlet is connected with fuel tank respectively, and the 4th inserted valve CZ4 outlet is connected with lower cavity oil pipe G3； Double active proportional throttle valve YAB P mouths are connected with control fluid voltage stabilizing oil pipe G4.
First inserted valve CZ1 hydraulic control mouth respectively with the 4th overflow valve F4, the 5th overflow valve F5 entrance and the 3rd electromagnetism Reversal valve YV3 P mouths are connected, and the 5th overflow valve F5 outlet is connected with the 3rd solenoid directional control valve YV3 A mouths, and the 3rd electromagnetism is changed Outlet to valve YV3 T mouths and the 4th overflow valve F4 is connected with fuel tank, and the 3rd solenoid directional control valve YV3 is that slide valve function is D Two four-way electromagnetic reversing valves.
3rd inserted valve CZ3 hydraulic control mouthful is connected with shuttle valve D5 outlet, shuttle valve D5 right entry and the 3rd inserted valve CZ3 Outlet be connected, shuttle valve D5 left entry is connected with the 6th solenoid directional control valve YV6 A mouths, the 6th solenoid directional control valve YV6 P mouths It is connected with pressure oil fuel feed pump G1, the 6th solenoid directional control valve YV6 T mouths are connected with fuel tank, and the 6th solenoid directional control valve YV6 is guiding valve Function is two four-way electromagnetic reversing valves of D types.
4th inserted valve CZ4 hydraulic control mouthful is connected with the 7th Solenoid ball valve YV7 A mouths, and the 7th Solenoid ball valve YV7 is two Threeway Solenoid ball valve, the 7th Solenoid ball valve YV7 P mouths are connected with lower cavity oil pipe G3, the 7th Solenoid ball valve YV7 T mouths and fuel tank It is connected；Lower cavity oil pipe G3 is connected by the 6th overflow valve F6 with fuel tank.
During sliding block backhaul：6th solenoid directional control valve YV6 obtains electric by the 3rd inserted valve CZ3 openings, and the 7th Solenoid ball valve YV7 is obtained Electricity opens the 4th inserted valve CZ4, and the 3rd solenoid directional control valve YV3 dead electricity makes the first inserted valve CZ1 be controlled by the 4th overflow valve F4, Pressure oil in pressure oil fuel feed pump G1 enters in lower cavity oil pipe G3, by pressure match module CF4 control to piston cylinder 1 Cavity of resorption fuel feeding；When cavity of resorption return pressure is more than 25MPa, the 4th overflow valve F4 is opened so that the first inserted valve CZ1 is opened, under Chamber oil circuit and fuel tank are communicated.
When under sliding block is fast：6th solenoid directional control valve YV6 dead electricity ensures that the 3rd inserted valve CZ3 is closed jointly with shuttle valve D5；The Seven Solenoid ball valve YV7 obtain electric by the 4th inserted valve CZ4 openings, and double active proportional throttle valve YAB obtain electric opening so that master cylinder cavity of resorption Directly communicated with fuel tank, sliding block is in without bearing state, under gravity, is moved downward.Then the 3rd solenoid directional control valve YV3 It is electric the first inserted valve CZ1 is controlled by the 5th overflow valve F5, be it is fast under change a job into being ready, reduce impact.Double active ratios Example choke valve YAB openings of sizes is directly proportional to the voltage inputted, only need to change numerical value on the touchscreen, just can easily change Become its opening so that the speed lower soon of sliding block is easy to adjust.
Changed a job under sliding block is fast into when：3rd solenoid directional control valve YV3 be kept as electricity make the first inserted valve CZ1 be controlled by the 5th overflow Flow valve F5, double active proportional throttle valve YAB dead electricity are closed, the cut-out of master cylinder cavity of resorption oil return line, sliding block can not under Gravitative Loads to Lower to move, pressure oil enters the epicoele of piston cylinder 1；When the pressure rise of the first inserted valve CZ1 hydraulic controls mouthful is to higher than the cavity of resorption back of the body When pressing setting value 8MPa, the 5th overflow valve F5 is opened so that the first inserted valve CZ1 is opened, and cavity of resorption oil circuit and fuel tank are communicated, sliding block Under pressure oil effect, work is entered at a slow speed.
As shown in Fig. 2 double active proportional throttle valve YAB outlet is connected with the second inserted valve CZ2 entrance, the second inserting Valve CZ2 outlet is connected with fuel tank, and the second inserted valve CZ2 is provided with aperture regulation handle, the second inserted valve CZ2 hydraulic control mouthful and the Four solenoid directional control valve YV4 A mouths are connected, and the 4th solenoid directional control valve YV4 P mouths are connected with the second inserted valve CZ2 entrance, and the 4th Solenoid directional control valve YV4 T mouths are connected with fuel tank, and the 4th solenoid directional control valve YV4 is that two four-way electromagnetics that slide valve function is D types are changed To valve.Connect the second inserted valve CZ2 between double active proportional throttle valve YAB and fuel tank, can be in double active proportional throttle valves During YAB failures, uninterrupted is adjusted by the second inserted valve CZ2 aperture regulation handle；When under sliding block is fast, the 4th electromagnetic switch Valve YV4 obtains electric, opens the second inserted valve CZ2；Changed a job under fast into when, the 4th solenoid directional control valve YV4 dead electricity makes the second inserted valve CZ2 is closed.
Pressure match module includes the 3rd dynamic valve C3, the 8th solenoid directional control valve YV8, the 9th solenoid directional control valve YV9 and the Ten solenoid directional control valve YV10.3rd dynamic valve C3 entrance is connected with epicoele oil pipe G2, the 3rd dynamic valve C3 outlet and piston The epicoele of cylinder is connected；3rd dynamic valve C3 hydraulic control mouthful A is connected by choke valve with the tenth solenoid directional control valve YV10 A mouths, the The hydraulic control mouthful B of three dynamic valves is connected by choke valve with the B mouths of the tenth solenoid directional control valve, P mouths and the control of the tenth solenoid directional control valve Liquefaction liquid voltage stabilizing oil pipe G4 is connected, and the T mouths of the tenth solenoid directional control valve are connected with fuel tank.
Entrance of the epicoele of piston cylinder also with the 6th dynamic valve C6 is connected, and the 6th dynamic valve C6 outlet is connected with fuel tank, Tenth solenoid directional control valve YV10 is two four-way electromagnetic reversing valves that slide valve function is Y types；6th dynamic valve C6 hydraulic control mouthful A leads to Cross choke valve with the 13rd solenoid directional control valve YV13 A mouths to be connected, the hydraulic control mouthful B of the 6th dynamic valve passes through choke valve and the 13rd The B mouths of solenoid directional control valve are connected, and the P mouths of the 13rd solenoid directional control valve are connected with control fluid voltage stabilizing oil pipe G4, the 13rd electromagnetism The T mouths of reversal valve are connected with fuel tank, and the 13rd solenoid directional control valve YV13 is that two four-way electromagnetics that slide valve function is D types commutate Valve.
9th solenoid directional control valve YV9 P mouths are connected with epicoele oil pipe G2, the 9th solenoid directional control valve YV9 T mouths and fuel tank phase Even, the 9th solenoid directional control valve YV9 B mouths are connected with the rod cavity of first and second plunger case, and the 9th solenoid directional control valve YV9 is guiding valve machine Can be two four-way electromagnetic reversing valves of EA types.
8th solenoid directional control valve YV8 P mouths are connected with epicoele oil pipe G2, the 8th solenoid directional control valve YV8 T mouths and fuel tank phase Even, the 8th solenoid directional control valve YV8 B mouths are connected with the rod cavity of third and fourth plunger case, and the 8th solenoid directional control valve YV8 is guiding valve machine Can be two four-way electromagnetic reversing valves of EA types.
When under sliding block is fast, when the tenth solenoid directional control valve YV10 obtains electric, control fluid opens rapidly the 3rd dynamic valve C3, epicoele Pressure oil in oil pipe G2 quickly enters the epicoele of piston cylinder by the 3rd dynamic valve C3；The 9th solenoid directional control valve YV9 is obtained simultaneously Pressure oil in electricity, epicoele oil pipe G2 enters the rod cavity of first and second plunger case by the 9th solenoid directional control valve YV9.8th electromagnetism Reversal valve YV8 obtains electric, and the pressure oil in epicoele oil pipe G2 enters the bar of third and fourth plunger case by the 8th solenoid directional control valve YV8 Chamber, but the need for the fluid of first, second and third servopump offer far can not meet piston cylinder and the change of each plunger case volume. Therefore, 13rd solenoid directional control valve YV13 is in power failure state when under sliding block is fast, and the 6th dynamic valve C6 is in open mode, oil Fluid in case constantly fills into the epicoele of piston cylinder, and the 6th dynamic valve open in usual need not overcome self-suction, make sliding block is lower soon to add Speed is big, speed is fast.
Changed a job under sliding block is fast into when, the pressure oil in epicoele oil pipe G2 quickly enters piston cylinder by the 3rd dynamic valve C3 Epicoele, the 13rd solenoid directional control valve YV13 obtains electric, and control fluid closes rapidly the 6th dynamic valve C6 so that the epicoele pressure of piston cylinder 1 Power is raised rapidly.Instantly when cavity pressure is elevated above 8MPa, the 5th overflow valve F5 is opened so that the first inserted valve CZ1 is opened, under Chamber oil circuit and fuel tank are communicated, and sliding block realizes that work is entered at a slow speed under pressure oil effect.6th dynamic valve C6 is in the 13rd electromagnetic switch Valve YV13 obtain it is electric after, rapid to close, the response time is fast, and controlling extent is high with reliability so that changed a job under fast into being not in stop Stagnant phenomenon.
Entrance of the rod cavity of first and second plunger case also simultaneously with the 7th dynamic valve C7, the 8th dynamic valve C8 is connected, and the 7th moves State valve C7, the 8th dynamic valve C8 outlet are connected with fuel tank respectively；7th dynamic valve C7 hydraulic control mouthful A passes through choke valve and the tenth Four solenoid directional control valve YV14 A mouths are connected, and the hydraulic control mouthful B of the 7th dynamic valve passes through choke valve and the B of the 14th solenoid directional control valve Mouthful be connected, P mouths of the 14th solenoid directional control valve with controlling fluid voltage stabilizing oil pipe G4 to be connected, the T mouths of the 14th solenoid directional control valve and Fuel tank is connected, and the 14th solenoid directional control valve YV14 is two four-way electromagnetic reversing valves that slide valve function is D types.
8th dynamic valve C8 hydraulic control mouthful A is connected by choke valve with the 15th solenoid directional control valve YV15 A mouths, and the 8th moves The hydraulic control mouthful B of state valve is connected by choke valve with the B mouths of the 15th solenoid directional control valve, P mouths and the control of the 15th solenoid directional control valve Liquefaction liquid voltage stabilizing oil pipe G4 is connected, and the T mouths of the 15th solenoid directional control valve are connected with fuel tank, and the 15th solenoid directional control valve YV15 is sliding Valve function is two four-way electromagnetic reversing valves of D types.
When under sliding block is fast, the 14th solenoid directional control valve YV14, the 15th equal dead electricity of solenoid directional control valve YV15, the 7th dynamic valve C7, the 8th dynamic valve C8 are normally opened, and the fluid in fuel tank constantly fills into the rod cavity of first and second plunger case, the 7th dynamic open in usual Valve C7, the 8th dynamic valve C8 need not overcome self-suction, and sliding block is descended soon, acceleration is big, speed is fast.
Entrance of the rod cavity of third and fourth plunger case also simultaneously with the 4th dynamic valve C4, the 5th dynamic valve C5 is connected, and the 4th moves State valve C4, the 5th dynamic valve C5 outlet are connected with fuel tank respectively；4th dynamic valve C4 hydraulic control mouthful A passes through choke valve and the tenth One solenoid directional control valve YV11 A mouths are connected.The hydraulic control mouthful B of 4th dynamic valve passes through choke valve and the B of the 11st solenoid directional control valve Mouthful be connected, P mouths of the 11st solenoid directional control valve with controlling fluid voltage stabilizing oil pipe G4 to be connected, the T mouths of the 11st solenoid directional control valve and Fuel tank is connected, and the 11st solenoid directional control valve YV11 is two four-way electromagnetic reversing valves that slide valve function is D types.
5th dynamic valve C5 hydraulic control mouthful A is connected by choke valve with the 12nd solenoid directional control valve YV12 A mouths, and the 5th moves The hydraulic control mouthful B of state valve is connected by choke valve with the B mouths of the 12nd solenoid directional control valve, P mouths and the control of the 12nd solenoid directional control valve Liquefaction liquid voltage stabilizing oil pipe G4 is connected, and the T mouths of the 12nd solenoid directional control valve are connected with fuel tank, and the 12nd solenoid directional control valve YV12 is sliding Valve function is two four-way electromagnetic reversing valves of D types.
When under sliding block is fast, the 11st solenoid directional control valve YV11, the 12nd equal dead electricity of solenoid directional control valve YV12, the 4th dynamic valve C4, the 5th dynamic valve C5 are normally opened, and the fluid in fuel tank constantly fills into the rod cavity of third and fourth plunger case, the 4th dynamic open in usual Valve C4, the 5th dynamic valve C5 need not overcome self-suction, and sliding block is descended soon, acceleration is big, speed is fast.Changed a job under sliding block is fast into when, root The need for tonnage, the dynamic valve C4 of selection the 4th, the 5th dynamic valve C5, the 6th dynamic valve C6, the 7th dynamic valve C7, the 8th dynamic Valve C8 is normally opened or closes.
For example when 100T works are entered, the 13rd solenoid directional control valve YV13, the 14th solenoid directional control valve YV14, the 15th electromagnetism are changed To the equal dead electricity of valve YV15, the 6th dynamic valve C6, the 7th dynamic valve C7, the 8th dynamic valve C8 are normally opened, the epicoele of piston cylinder and first, The rod cavity of two plunger cases does not build pressure；11st solenoid directional control valve YV11, the 12nd solenoid directional control valve YV12 it is electric, the 4th dynamic Valve C4, the 5th dynamic valve C5 are closed, and the rod cavity of third and fourth plunger case builds pressure.
When 200T works are entered, the 13rd solenoid directional control valve YV13 dead electricity, the 6th dynamic valve C6 is normally opened, and the epicoele of piston cylinder is not built Pressure；11st solenoid directional control valve YV11, the 12nd solenoid directional control valve YV12, the 14th solenoid directional control valve YV14, the 15th electromagnetism Reversal valve YV15 it is electric, the 4th dynamic valve C4, the 5th dynamic valve C5, the 7th dynamic valve C7, the 8th dynamic valve C8 are closed, the First, the rod cavity of two, three, four plunger cases builds pressure.
When 300T works are entered, the 11st solenoid directional control valve YV11, the 12nd solenoid directional control valve YV12, the 14th solenoid directional control valve YV14, the 15th equal dead electricity of solenoid directional control valve YV15, the 4th dynamic valve C4, the 5th dynamic valve C5, the 7th dynamic valve C7, the 8th move State valve C8 is normally opened, and the rod cavity of first, second, third and fourth plunger case does not build pressure；13rd solenoid directional control valve YV13 obtains electric, the 6th dynamic Valve C6 is closed, and the epicoele of piston cylinder builds pressure.
When 400T works are entered, the 14th solenoid directional control valve YV14, the 15th equal dead electricity of solenoid directional control valve YV15, the 7th dynamic valve C7, the 8th dynamic valve C8 are normally opened, and the rod cavity of first and second plunger case does not build pressure；11st solenoid directional control valve YV11, the 12nd electromagnetism Reversal valve YV12, the 13rd solenoid directional control valve YV13 obtain electric, and the 4th dynamic valve C4, the 5th dynamic valve C5, the 6th dynamic valve C6 are closed Close, the rod cavity of the epicoele of piston cylinder and third and fourth plunger case builds pressure.
When 500T works are entered, the 11st solenoid directional control valve YV11, the 12nd solenoid directional control valve YV12, the 13rd solenoid directional control valve YV13, the 14th solenoid directional control valve YV14, the 15th solenoid directional control valve YV15 electric, the 4th dynamic valve C4, the 5th dynamic valve C5, the 6th dynamic valve C6, the 7th dynamic valve C7, the 8th dynamic valve C8 are closed, the epicoele of piston cylinder and first, second, third and fourth plunger The rod cavity of cylinder builds pressure.
The master cylinder hydraulic pressure system operation of fast and stable of the present invention is that nominal pressure is different between each tonnage, operation principle, Operating efficiency is basically identical, and a do action of slider of hydraulic press is described as follows by taking 300T as an example below：
Under I sliding block is fast：First solenoid directional control valve YV1 obtains electric, and the first dynamic valve C1 is closed, first, second and third servopump B1, B2, B3 start, and pressure oil fuel feed pump G1 builds pressure.Fluid plunger pump B4 is controlled to start, control fluid voltage stabilizing oil pipe G4 builds pressure.
7th Solenoid ball valve YV7 obtain it is electric open the 4th inserted valve CZ4, double active proportional throttle valve YAB obtain electric opening, the Four solenoid directional control valve YV4 obtain it is electric make the second inserted valve CZ2 open so that master cylinder cavity of resorption and fuel tank are directly communicated, sliding block be in nothing Bearing state, under gravity, is moved downward.
5th solenoid directional control valve YV5 obtain it is electric open the second dynamic valve C2, epicoele oil pipe G2 builds pressure；Tenth solenoid directional control valve YV10 obtain it is electric open the 3rd dynamic valve C3, while the 8th solenoid directional control valve YV8 and the 9th solenoid directional control valve YV9 must be conducted, Pressure oil in epicoele oil pipe G2 enters the epicoele of piston cylinder by the 3rd dynamic valve C3, is entered by the 9th solenoid directional control valve YV9 Enter the rod cavity of first and second plunger case, the rod cavity of third and fourth plunger case is entered by the 8th solenoid directional control valve YV8.
When under sliding block is fast, the fluid that first, second and third servopump is provided far can not meet piston cylinder and each plunger case volume The need for change.Therefore, the 11st solenoid directional control valve YV11, the 12nd solenoid directional control valve YV12, the 13rd solenoid directional control valve YV13, the 14th solenoid directional control valve YV14 and the 15th equal dead electricity of solenoid directional control valve YV15, control fluid are opened rapidly the 4th and moved Fluid in state valve C4, the 5th dynamic valve C5, the 6th dynamic valve C6, the dynamic valve C8 of the 7th dynamic valve C7 and the 8th, fuel tank is continuous Epicoele, the rod cavity of first, second, third and fourth plunger case of piston cylinder are filled into, sliding block is descended soon, acceleration is big, speed is fast.
Will be changed a job under fast into when, the 3rd solenoid directional control valve YV3, which is obtained, electric makes the first inserted valve CZ1 be controlled by the 5th overflow valve F5, be it is fast under change a job into being ready, reduce impact.
II sliding block work is entered：When 300T works are entered, first and second servopump B1, B2 keeps work, and the 3rd servopump B3 stops fortune OK.
13rd solenoid directional control valve YV13 obtains electric, and control fluid closes rapidly the 6th dynamic valve C6 so that the epicoele of piston cylinder 1 Pressure is raised rapidly, and the response time is fast so that changed a job under fast into being not in stagnation behavior.3rd solenoid directional control valve YV3 is kept The first inserted valve CZ1 electric must be made to be controlled by the 5th overflow valve F5, double active proportional throttle valve YAB dead electricity are closed, piston cylinder cavity of resorption Oil return line is cut off, and sliding block can not be moved downward under Gravitative Loads.When the pressure of the first inserted valve CZ1 hydraulic controls mouthful is higher than 8MPa When, the 5th overflow valve F5 is opened so that the first inserted valve CZ1 is opened, and cavity of resorption oil circuit and fuel tank are communicated；Sliding block is acted in pressure oil Under, work is entered at a slow speed.Now the 4th solenoid directional control valve YV4 dead electricity closes the second inserted valve CZ2, and the 6th solenoid directional control valve YV6 loses Electricity closes the 3rd inserted valve CZ3.
Pressure oil in 8th solenoid directional control valve YV8 and the 9th solenoid directional control valve YV9 dead electricity, epicoele oil pipe G2 is not entered back into The rod cavity of first, second, third and fourth plunger case；11st solenoid directional control valve YV11, the 12nd solenoid directional control valve YV12, the 14th electricity Magnetic reversal valve YV14 and the 15th solenoid directional control valve YV15 keeps dead electricity, and the rod cavity of first, second, third and fourth plunger case passes through the 4th Dynamic valve C4, the 5th dynamic valve C5, the 7th dynamic dynamics of valve C7 and the 8th valve C8 are communicated with fuel tank.
After III contact workpiece, sliding block pressurization：The pressure target value of piston cylinder epicoele, epicoele oil pipe G2 are set on the touchscreen On high-precision second pressure sensor CP2 (≤0.5%FSO) and second pressure table BP2 are installed, servo-drive passes through second Pressure sensor CP2 carries out pressure signal Real-time Feedback, and motor speed feedback is carried out by encoder for servo motor.And then pass through Pressure flow two close cycles algorithm inside servo-drive, adjusts servomotor rotating speed, realizes the high precision closed loop control of pressure.I.e. When actual pressure is close to desired value, servomotor can reduce rotating speed automatically, and it is not in overshoot phenomenon, level pressure to have reached pressure Precision is reached within ± 2% scope.Second pressure table BP2 is used for the authenticity for detecting pressure value, and data reference is provided for maintenance.
IV sliding block pressurize：It is identical with pressurized state that each solenoid directional control valve obtains electric situation, and function is protected with pump, servo pump group from The upper cavity pressure value of the dynamic piston cylinder of maintenance at the low rotational speed, Pressure Retention is good.
V sliding block pressure release：First solenoid directional control valve YV1 dead electricity, the first dynamic valve C1 is opened, in pressure oil fuel feed pump G1 Pressure oil is by the first dynamic valve C1 to fuel tank pressure release, and first and second servopump B1, B2 is out of service.7th Solenoid ball valve YV7 Dead electricity closes the 4th inserted valve CZ4, is overflowed while the 3rd solenoid directional control valve YV3 dead electricity makes the first inserted valve CZ1 be controlled by the Flow valve F4.
5th solenoid directional control valve YV5 dead electricity makes the second dynamic valve C2 close rapidly, and proportional flow control valve YAA obtains electric opening, living The pressure oil of the epicoele of plug cylinder 1 only need to change numerical value on the touchscreen, just by the 3rd dynamic valve C3, proportional flow control valve YAA pressure releases Proportional flow control valve YAA opening can easily be changed, so that the pressure release speed needed, efficiency high, and having stable behavior.
V sliding block backhaul：First, second and third servopump B1, B2, B3 puts into operation, and the first solenoid directional control valve YV1 obtains electric, the One dynamic valve C1 quick closedowns, pressure oil fuel feed pump G1 builds rapidly pressure.
6th solenoid directional control valve YV6 obtain it is electric 3rd inserted valve CZ3 is opened, the 7th Solenoid ball valve YV7 is obtained electric to be inserted the 4th Fill valve CZ4 to open, the pressure oil in pressure oil fuel feed pump G1 enters in lower cavity oil pipe G3, subsequently into the cavity of resorption of piston cylinder.The Three solenoid directional control valve YV3 keep dead electricity the first inserted valve CZ1 is controlled by the 4th overflow valve F4.
Proportional flow control valve YAA dead electricity is closed, and the tenth solenoid directional control valve YV10 dead electricity closes the 3rd dynamic valve C3, and the 13rd Solenoid directional control valve YV13 dead electricity opens the 6th dynamic valve C6, and the epicoele of piston cylinder 1 is communicated with fuel tank, sliding block backhaul, and the 6th overflows Stream valve F6 plays a part of safety valve.
The time that this system completes a do action can be controlled at 2.8 seconds or so, and speed is fast, stable action.
Proportional flow control valve YAA can use safe rich KTG4V-3S-2B08N-M-U1-H5-60-EN427 types；Double active ratio sections Stream valve YAB can use safe rich TLCF032-2WRCD-1X/SG24 types.
It the foregoing is only the preferable possible embodiments of the present invention, non-therefore the limitation present invention patent protection model Enclose.In addition to the implementation, the present invention can also have other embodiment.All use equivalent substitutions or the skill of equivalent transformation formation Art scheme, all falls within the protection domain of application claims.Technical characteristic of the invention without description can be by or using now There is technology realization, will not be repeated here.

Claims (10)

1. a kind of master cylinder hydraulic pressure system of fast and stable, including the piston cylinder being connected with slider top center（1）With with sliding block four First, second, third and fourth plunger case of individual corner connection, wherein first and second plunger case is arranged in diagonal, third and fourth plunger case is in Diagonal arranges that the piston cylinder and each plunger case are respectively by main pump module（CF1）Pressure oil is provided, it is characterised in that：It is described The rod cavity of the epicoele of piston cylinder and first, second, third and fourth plunger case passes through pressure match module respectively（CF4）With epicoele oil Pipe（G2）It is connected, the piston cylinder（1）Cavity of resorption and lower cavity oil pipe（G3）It is connected, the epicoele oil pipe（G2）And lower cavity oil pipe （G3）Pass through high-precision control module respectively（CF3）With the main pump module（CF1）It is connected, the main pump module（CF1）And height Precision controlling module（CF3）Control fluid both from control fluid voltage stabilizing oil pipe（G4）, the control fluid voltage stabilizing oil pipe （G4）With control fluid supply source module（CF2）Outlet be connected.
2. the master cylinder hydraulic pressure system of fast and stable according to claim 1, it is characterised in that：The main pump module（CF1） Including first, second and third servopump（B1、B2、B3）, the suction inlet of first, second and third servopump is connected with fuel tank respectively, the first servo The outlet of pump passes through the first check valve（D1）With pressure oil fuel feed pump（G1）Entrance be connected, the outlet of the second servopump passes through the Two check valves（D2）With pressure oil fuel feed pump（G1）Entrance be connected, the outlet of the 3rd servopump passes through the 3rd check valve（D3）With Pressure oil fuel feed pump（G1）Entrance be connected, the pressure oil fuel feed pump（G1）With the first dynamic valve（C1）Entrance be connected, institute State the first dynamic valve（C1）Outlet be connected with fuel tank, the first dynamic valve（C1）Hydraulic control mouthful A pass through choke valve and first The A mouths of solenoid directional control valve (YV1) are connected, and the hydraulic control mouthful B of the described first dynamic valve passes through choke valve and the B of the first solenoid directional control valve Mouth is connected, the P mouths of the first solenoid directional control valve and the control fluid voltage stabilizing oil pipe（G4）It is connected, the T mouths of the first solenoid directional control valve It is connected with fuel tank；The pressure oil fuel feed pump（G1）Pass through the first overflow valve（F1）It is connected with fuel tank, first electromagnetic switch Valve (YV1) is two four-way electromagnetic reversing valves that slide valve function is D types.
3. the master cylinder hydraulic pressure system of fast and stable according to claim 1, it is characterised in that：The control fluid supply source mould Block（CF2）Including control fluid plunger pump（B4）, oil filter（L1）, the 4th check valve（D4）, accumulator（X1）, the first stop valve （J1）With the second stop valve（J2）, the control fluid plunger pump（B4）Suction inlet be connected with fuel tank, it is described control fluid plunger Pump（B4）Outlet pass through the oil filter（L1）With the 4th check valve（D4）It is connected, the 4th check valve（D4）Go out Mouth respectively with the accumulator（X1）, the first stop valve（J1）With the second stop valve（J2）Entrance be connected, it is described first cut-off Valve（J1）Outlet be connected with fuel tank, second stop valve（J2）Outlet with it is described control fluid voltage stabilizing oil pipe（G4）Phase Even.
4. the master cylinder hydraulic pressure system of fast and stable according to claim 3, it is characterised in that：The control fluid plunger pump （B4）Outlet pass through the second overflow valve（F2）It is connected with fuel tank, the hydraulic control mouthful of second overflow valve passes through the second electromagnetic switch Valve (YV2) is connected with fuel tank, and second solenoid directional control valve is 2/2-way solenoid directional control valve；4th check valve（D4）'s Outlet also passes through the 3rd overflow valve（F3）It is connected with fuel tank；First pressure table is installed on the inlet duct of the accumulator （BP1）With first pressure sensor（CP1）, the break-make of second solenoid directional control valve (YV2) is controlled by the first pressure and passes The pressure value that sensor is measured.
5. the master cylinder hydraulic pressure system of fast and stable according to claim 1, it is characterised in that：The high-precision control module Including the second dynamic valve (C2) and proportional flow control valve（YAA）, the entrance and the pressure oil fuel feed pump of the second dynamic valve (C2) （G1）It is connected, the outlet of the second dynamic valve (C2) and the epicoele oil pipe（G2）It is connected, the epicoele oil pipe（G2）With the ratio Example flow valve（YAA）Entrance be connected, proportional flow control valve（YAA）Outlet be connected with fuel tank；Described second dynamic valve（C2）'s Hydraulic control mouthful A is connected by choke valve with the A mouths of the 5th solenoid directional control valve (YV5), and the hydraulic control mouthful B of the described second dynamic valve passes through section Stream valve is connected with the B mouths of the 5th solenoid directional control valve, the P mouths of the 5th solenoid directional control valve and the control fluid voltage stabilizing oil pipe（G4）Phase Even, the T mouths of the 5th solenoid directional control valve are connected with fuel tank；The epicoele oil pipe（G2）Second pressure table is installed（BP2）With second Pressure sensor（CP2）, the 5th solenoid directional control valve (YV5) is two four-way electromagnetic reversing valves that slide valve function is Y types.
6. the master cylinder hydraulic pressure system of fast and stable according to claim 5, it is characterised in that：The high-precision control module Also include the first inserted valve（CZ1）, the 3rd inserted valve（CZ3）, the 4th inserted valve（CZ4）With double active proportional throttle valves（YAB）, 3rd inserted valve（CZ3）Entrance and the pressure oil fuel feed pump（G1）It is connected, the 3rd inserted valve（CZ3）Outlet respectively with One inserted valve（CZ1）, the 4th inserted valve（CZ4）And double active proportional throttle valves（YAB）Entrance be connected, first inserted valve （CZ1）And double active proportional throttle valves（YAB）Outlet be connected respectively with fuel tank, the 4th inserted valve（CZ4）Outlet with it is described Lower cavity oil pipe（G3）It is connected；Double active proportional throttle valves（YAB）P mouths with it is described control fluid voltage stabilizing oil pipe（G4）It is connected；The One inserted valve（CZ1）Hydraulic control mouth respectively with the 4th overflow valve（F4）, the 5th overflow valve（F5）Entrance and the 3rd electromagnetic switch Valve（YV3）P mouths be connected, the 5th overflow valve（F5）Outlet and the 3rd solenoid directional control valve（YV3）A mouths be connected, the 3rd electromagnetism Reversal valve（YV3）T mouths and the 4th overflow valve（F4）Outlet be connected with fuel tank, the 3rd solenoid directional control valve（YV3）It is guiding valve Function is D two four-way electromagnetic reversing valves；3rd inserted valve（CZ3）Hydraulic control mouthful and shuttle valve（D5）Outlet be connected, shuttle valve （D5）Right entry and the 3rd inserted valve（CZ3）Outlet be connected, shuttle valve（D5）Left entry and the 6th solenoid directional control valve（YV6） A mouths be connected, the 6th solenoid directional control valve（YV6）P mouths and the pressure oil fuel feed pump（G1）It is connected, the 6th solenoid directional control valve （YV6）T mouths be connected with fuel tank, the 6th solenoid directional control valve（YV6）It is two four-way electromagnetic reversing valves that slide valve function is D types； 4th inserted valve（CZ4）Hydraulic control mouthful and the 7th Solenoid ball valve（YV7）A mouths be connected, the 7th Solenoid ball valve（YV7）For two three Logical Solenoid ball valve, the 7th Solenoid ball valve（YV7）P mouths and the lower cavity oil pipe（G3）It is connected, the 7th Solenoid ball valve（YV7）T Mouth is connected with fuel tank；The lower cavity oil pipe（G3）Pass through the 6th overflow valve（F6）It is connected with fuel tank.
7. the master cylinder hydraulic pressure system of fast and stable according to claim 6, it is characterised in that：Double active proportional throttle valves （YAB）Outlet and the second inserted valve（CZ2）Entrance be connected, the second inserted valve（CZ2）Outlet be connected with fuel tank, described Two inserted valves（CZ2）Provided with aperture regulation handle, second inserted valve（CZ2）Hydraulic control mouthful and the 4th solenoid directional control valve （YV4）A mouths be connected, the 4th solenoid directional control valve（YV4）P mouths and the second inserted valve（CZ2）Entrance be connected, the 4th electromagnetism is changed To valve（YV4）T mouths be connected with fuel tank, the 4th solenoid directional control valve（YV4）It is that two four-way electromagnetics that slide valve function is D types commutate Valve.
8. the master cylinder hydraulic pressure system of fast and stable according to claim 1, it is characterised in that：The pressure match module bag Include the 3rd dynamic valve（C3）, the 8th solenoid directional control valve（YV8）, the 9th solenoid directional control valve（YV9）With the tenth solenoid directional control valve （YV10）, the described 3rd dynamic valve（C3）Entrance and the epicoele oil pipe（G2）It is connected, the described 3rd dynamic valve（C3）Go out Mouth is connected with the epicoele of the piston cylinder；Described 3rd dynamic valve（C3）Hydraulic control mouthful A pass through choke valve and the tenth electromagnetic switch The A mouths of valve (YV10) are connected, and the hydraulic control mouthful B of the described 3rd dynamic valve is connected by choke valve with the B mouths of the tenth solenoid directional control valve, The P mouths of tenth solenoid directional control valve and the control fluid voltage stabilizing oil pipe（G4）It is connected, T mouths and the fuel tank phase of the tenth solenoid directional control valve Even；The epicoele of the piston cylinder also with the 6th dynamic valve（C6）Entrance be connected, the 6th dynamic valve（C6）Outlet and fuel tank phase Even, the tenth solenoid directional control valve (YV10) is two four-way electromagnetic reversing valves that slide valve function is Y types；Described 6th dynamic valve（C6） Hydraulic control mouthful A be connected by choke valve with A mouths of the 13rd solenoid directional control valve (YV13), the hydraulic control mouth B of the 6th dynamic valve It is connected by choke valve with the B mouths of the 13rd solenoid directional control valve, the P mouths of the 13rd solenoid directional control valve and the control fluid voltage stabilizing Oil pipe（G4）It is connected, the T mouths of the 13rd solenoid directional control valve are connected with fuel tank, and the 13rd solenoid directional control valve (YV13) is slide valve function For two four-way electromagnetic reversing valves of D types；9th solenoid directional control valve（YV9）P mouths and the epicoele oil pipe（G2）It is connected, the 9th Solenoid directional control valve（YV9）T mouths be connected with fuel tank, the 9th solenoid directional control valve（YV9）B mouths and first and second plunger case Rod cavity is connected, the 9th solenoid directional control valve（YV9）It is two four-way electromagnetic reversing valves that slide valve function is EA types；8th electromagnetic switch Valve（YV8）P mouths and the epicoele oil pipe（G2）It is connected, the 8th solenoid directional control valve（YV8）T mouths be connected with fuel tank, the 8th electricity Magnetic reversal valve（YV8）B mouths be connected with the rod cavity of third and fourth plunger case, the 8th solenoid directional control valve（YV8）It is slide valve function For two four-way electromagnetic reversing valves of EA types.
9. the master cylinder hydraulic pressure system of fast and stable according to claim 8, it is characterised in that：First and second plunger case Rod cavity also simultaneously with the 7th dynamic valve（C7）, the 8th dynamic valve（C8）Entrance be connected, the 7th dynamic valve（C7）, the 8th dynamic Valve（C8）Outlet be connected respectively with fuel tank；Described 7th dynamic valve（C7）Hydraulic control mouthful A pass through choke valve and the 14th electromagnetism The A mouths of reversal valve (YV14) are connected, and the hydraulic control mouthful B of the described 7th dynamic valve passes through choke valve and the B of the 14th solenoid directional control valve Mouth is connected, the P mouths of the 14th solenoid directional control valve and the control fluid voltage stabilizing oil pipe（G4）It is connected, the 14th solenoid directional control valve T mouthfuls are connected with fuel tank, and the 14th solenoid directional control valve (YV14) is two four-way electromagnetic reversing valves that slide valve function is D types；It is described 8th dynamic valve（C8）Hydraulic control mouthful A be connected by choke valve with the A mouths of the 15th solenoid directional control valve (YV15), the described 8th is dynamic The hydraulic control mouthful B of state valve is connected by choke valve with the B mouths of the 15th solenoid directional control valve, the P mouths of the 15th solenoid directional control valve and institute State control fluid voltage stabilizing oil pipe（G4）It is connected, the T mouths of the 15th solenoid directional control valve are connected with fuel tank, the 15th solenoid directional control valve (YV15) be slide valve function be D types two four-way electromagnetic reversing valves.
10. the master cylinder hydraulic pressure system of fast and stable according to claim 8 or claim 9, it is characterised in that：Third and fourth described post The rod cavity of plug cylinder also simultaneously with the 4th dynamic valve（C4）, the 5th dynamic valve（C5）Entrance be connected, the 4th dynamic valve（C4）, the 5th Dynamic valve（C5）Outlet be connected respectively with fuel tank；Described 4th dynamic valve（C4）Hydraulic control mouthful A pass through choke valve and the 11st The A mouths of solenoid directional control valve (YV11) are connected, and the hydraulic control mouthful B of the described 4th dynamic valve passes through choke valve and the 11st solenoid directional control valve B mouths be connected, P mouths of the 11st solenoid directional control valve with it is described control fluid voltage stabilizing oil pipe（G4）It is connected, the 11st electromagnetic switch The T mouths of valve are connected with fuel tank, and the 11st solenoid directional control valve (YV11) is two four-way electromagnetic reversing valves that slide valve function is D types； Described 5th dynamic valve（C5）Hydraulic control mouthful A be connected by choke valve with the A mouths of the 12nd solenoid directional control valve (YV12), described the The hydraulic control mouthful B of five dynamic valves is connected by choke valve with the B mouths of the 12nd solenoid directional control valve, the P mouths of the 12nd solenoid directional control valve With the control fluid voltage stabilizing oil pipe（G4）It is connected, the T mouths of the 12nd solenoid directional control valve are connected with fuel tank, the 12nd electromagnetic switch Valve (YV12) is two four-way electromagnetic reversing valves that slide valve function is D types.
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CN205009649U (en) * 2015-08-04 2016-02-03 山东泰丰液压股份有限公司 Mechanical press hydraulic die cushion controlling means
CN205937271U (en) * 2016-08-16 2017-02-08 江苏国力锻压机床有限公司 Fast and stable's master cylinder hydraulic system

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