CN103233941B - Multi-stage booster cylinder and pressurize using method and release using method - Google Patents
Multi-stage booster cylinder and pressurize using method and release using method Download PDFInfo
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- CN103233941B CN103233941B CN201310164325.9A CN201310164325A CN103233941B CN 103233941 B CN103233941 B CN 103233941B CN 201310164325 A CN201310164325 A CN 201310164325A CN 103233941 B CN103233941 B CN 103233941B
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Abstract
The present invention relates to a kind of multi-stage booster cylinder, common pressurized cylinder B chamber be divided into B chamber, C chamber by the rear bar and secondary booster cylinder barrel increasing piston, it is provided that in disposable multiple pressure ratio, B chamber and C chamber effective area bigger for D chamber, effective area less for E chamber.Pressurization is divided into 2 steps, first D chamber input pressure oil, and A chamber output pressure ratio is D/A(area ratio) hydraulic oil；D chamber and E chamber are simultaneously entered pressure oil afterwards, and A chamber output pressure ratio is (D+E)/A(area ratio) hydraulic oil complete pressurization.Stress-relief process connects with multi-stage booster cylinder A chamber first with main hydraulic cylinder, D chamber connection Accumulator arrangements, it is achieved Pressure reducing ratio is A/D(area ratio) decompression backward Accumulator arrangements topping up, the most progressively release.Use multi-stage booster cylinder to realize classification pressurization in pressurization in hydraulic system of hydraulic machine, by the conversion of pressure ratio in stress-relief process, achieve classification energy regenerating more smoothly, decrease hydraulic shock.
Description
Technical field
The present invention relates to a kind of hydraulic pressure booster cylinder, particularly a kind of multi-stage booster cylinder and pressurization using method and release thereof make
Use method.
Background technology
In order to improve the efficiency of compacting and reduce the pressure etc. of hydraulic system pipeline and valve member in hydraulic press pressing process
Level generally uses pressurized cylinder, and the typical structure such as Fig. 1 pressurized cylinder is made up of front end housing 1, piston 2, cylinder barrel 3, back cylinder cover 4, piston
2, the rod end of piston 2 and front end housing 1 are formed with the A chamber of bar, and piston 2, cylinder barrel 3, back cylinder cover 4 form the B chamber without bar.A chamber is effective
Area is less than B chamber effective area, and effective area ratio ordinarily be about between 1:2.0-2.5.In the control of hydraulic system during supercharging
Under, system pressure oil is input to B chamber, and through effective area ratio, the A chamber hydraulic oil of supercharging exports to the main hydraulic cylinder of hydraulic press, complete
Become pressurization.
The system pressure oil of hydraulic press is general at 15-17MPa, intensified rear maximum pressure up to 30-35MPa, due to
Hydraulic press main hydraulic cylinder volume is relatively big, and therefore main hydraulic cylinder pressurization from system pressure to boost pressure is that a pressure steps up
Process, the initial stage of supercharging, the pressure of main hydraulic cylinder and pressurized cylinder operating pressure pressure reduction close to 20MPa, this bigger pressure reduction
Form the hydraulic shock not only pressure process of moment to be difficult to control to, also a considerable amount of pressure can be converted into heat energy or make an uproar simultaneously
Sound, wastes the energy.
Having suppressed rear main hydraulic cylinder and stored sizable hydraulic energy, the common practices of release pressure recovery energy is main hydraulic pressure
The hydraulic oil of cylinder epicoele directly unloads and is pressed onto Accumulator arrangements, but also due to there is the biggest pressure differential, there is hydraulic shock, must not
Do not use pressure higher accumulator, and energy regenerating utilization rate is relatively low.
Summary of the invention
It is an object of the invention to overcome weak point of the prior art, it is provided that a kind of supercharging, release are impacted less, increase
Pressing through journey energy loss less, stress-relief process energy recovery rate more much higher level pressurized cylinder and pressurization using method and release thereof make
Use method.
It is an object of the invention to be realized by following approach.
Multi-stage booster cylinder, including front end housing, cylinder barrel, piston and back cylinder cover, piston, the front bar of piston are formed with front end housing
Having the A chamber of front bar, its composition is characterized by: also include secondary booster cylinder barrel, and piston has rear bar, and secondary booster cylinder barrel is fixed
Being arranged on the rear of back cylinder cover, piston rear bar backs through in the barrel chamber that back cylinder cover enters secondary booster cylinder barrel, piston rear bar, cylinder
Cylinder, back cylinder cover are formed with the B chamber of rear bar, and back cylinder cover, piston rear bar, secondary booster cylinder barrel are formed with the C chamber of rear bar, B chamber and C chamber
In the effective area in an at least chamber more than the effective area in A chamber, A, B, C tri-chamber be respectively provided with the oil circuit of externally connection.
Two-stage or multistage pressurizing chamber are so set, it is achieved classification pressurization and classification release, reduce to pressurize and unload pressing through
The hydraulic shock of journey.
The purpose of the present invention can also be realized by following approach.
How the B chamber relative to supercharging, the A chamber and the effective area ratio in C chamber are set, are referred to prior art.Wherein, may be used
To be:
Effective area in B chamber and C chamber is all higher than the effective area in A chamber.Can also be:
The effective area in the wherein chamber in B chamber and C chamber is more than the effective area in A chamber, and the effective area in another chamber is the least
Effective area in A chamber.The most reasonable level than scope is:
A chamber, B chamber and C chamber effective area are than for 1:1.5:0.8.Can certainly be:
A chamber, B chamber and C chamber effective area are than for 1:0.8:1.5.
Multi-stage booster cylinder pressurization using method, comprises the steps,
[1] provide multi-stage booster cylinder, including front end housing, cylinder barrel, piston and back cylinder cover, piston, piston front bar with front
Cylinder cap is formed with the A chamber of front bar, and its composition is characterized by: also including secondary booster cylinder barrel, piston has rear bar, secondary booster
Cylinder barrel is fixedly mounted on the rear of back cylinder cover, and piston rear bar backs through in the barrel chamber that back cylinder cover enters secondary booster cylinder barrel, lives
Plug rear bar, cylinder barrel, back cylinder cover are formed with the B chamber of rear bar, and back cylinder cover, piston rear bar, secondary booster cylinder barrel are formed with the C of rear bar
In chamber, B chamber and C chamber at least the effective area in a chamber more than the effective area in A chamber, wherein effective area bigger for D chamber, have
Effect area less for E chamber, A, B, C tri-chamber be respectively provided with the oil circuit of externally connection,
[2] HYDRAULIC CONTROL SYSTEM hydraulic power source is to D chamber input pressure oil, and the release of E chamber, A chamber exports pressure ratio to main hydraulic cylinder
The hydraulic oil through supercharging for D cavity area/A cavity area, it is achieved first order supercharging；
[3] HYDRAULIC CONTROL SYSTEM hydraulic power source is simultaneously entered pressure oil to D chamber and E chamber, and A chamber exports pressure ratio to main hydraulic cylinder
The hydraulic oil through supercharging for (D cavity area+E cavity area)/A cavity area, it is achieved second level supercharging, completes pressurization.
Above-mentioned steps can be optimized for further:
A chamber, B chamber and C cavity area are than for 1:1.5:0.8.Or
A chamber, B chamber and C chamber effective area are than for 1:0.8:1.5.
Before step [2], main hydraulic cylinder is pressurized to close to hydraulic power source pressure by HYDRAULIC CONTROL SYSTEM hydraulic power source.
Multi-stage booster cylinder release using method, comprises the steps,
[1] provide multi-stage booster cylinder, including front end housing, cylinder barrel, piston and back cylinder cover, piston, piston front bar with front
Cylinder cap 1 is formed with the A chamber of front bar, and its composition is characterized by: also include secondary booster cylinder barrel, and piston has rear bar, and secondary increases
Cylinder pressure cylinder is fixedly mounted on the rear of back cylinder cover, and piston rear bar backs through in the barrel chamber that back cylinder cover enters secondary booster cylinder barrel,
Piston rear bar, cylinder barrel, back cylinder cover 4 are formed with the B chamber of rear bar, and back cylinder cover, piston rear bar, secondary booster cylinder barrel are formed with rear bar
In C chamber, B chamber and C chamber at least the effective area in a chamber more than the effective area in A chamber, wherein effective area bigger for D chamber,
Effective area less for E chamber, A, B, C tri-chamber be respectively provided with the oil circuit of externally connection,
[2] HYDRAULIC CONTROL SYSTEM A chamber connects with main hydraulic cylinder epicoele, and E chamber connects Accumulator arrangements to oil return pipe release, D chamber,
The hydraulic oil of main hydraulic cylinder realizes, through multi-stage booster cylinder, the backward Accumulator arrangements of decompression that Pressure reducing ratio is A cavity area/D cavity area and fills
Liquid；
[3] HYDRAULIC CONTROL SYSTEM A chamber connects with main hydraulic cylinder epicoele, E chamber connection Accumulator arrangements, D chamber to oil return pipe release,
The hydraulic oil of main hydraulic cylinder realizes, through multi-stage booster cylinder, the backward Accumulator arrangements of decompression that Pressure reducing ratio is A cavity area/E cavity area and fills
Liquid.
Can also include step [3] after step [2], HYDRAULIC CONTROL SYSTEM A chamber connects with main hydraulic cylinder epicoele, and E chamber is even
Logical Accumulator arrangements, D chamber to oil return pipe release, the hydraulic oil of main hydraulic cylinder through multi-stage booster cylinder realize pressure ratio be A cavity area/
To Accumulator arrangements topping up after the supercharging of E cavity area.
Above-mentioned steps can be optimized for further:
A chamber, B chamber and C cavity area are than for 1:1.5:0.8.Or
A chamber, B chamber and C chamber effective area are than for 1:0.8:1.5.
The present invention has the advantage that many area ratio pressurized cylinder compared to existing technology, is passed through in existing common pressurized cylinder B chamber
The rear bar and the secondary booster cylinder barrel that increase piston are divided into B chamber, C chamber, it is provided that disposable multiple pressure ratio.At hydraulic press hydraulic pressure
System uses multi-stage booster cylinder realize classification pressurization in pressurization, reduce hydraulic shock during master cylinder supercharging, improve liquid
The efficiency of pressure system, saves the energy.Realize in energy recovery process, by the conversion of pressure ratio, release in stress-relief process simultaneously
Time make master cylinder from high boost presence, gradually reduce, make more smoothly owing to the elastic deformation energy of hydraulic oil and frame measures
Reclaim to classification, decrease hydraulic shock, reduce energy consumption simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of pressurized cylinder in prior art；
Fig. 2 is the structural representation of multi-stage booster cylinder described in preferred embodiment；
Fig. 3 is to utilize multi-stage booster cylinder to realize classification pressurization and the hydraulic schematic diagram of release energy regenerating.
In figure: 1. front end housing 2. piston 3. cylinder barrel 4. back cylinder cover 5. piston
51. piston rear bar 52. piston front bar 7. secondary booster cylinder barrels.
Detailed description of the invention
Most preferred embodiment:
As in figure 2 it is shown, multi-stage booster cylinder, including front end housing 1, cylinder barrel 3, piston 5 and back cylinder cover 6, before piston 5, piston
Bar 51 and front end housing 1 are formed with the A chamber of front bar, also include secondary booster cylinder barrel 7, and piston has rear bar, secondary booster cylinder barrel 7
Being fixedly mounted on the rear of back cylinder cover 6, piston rear bar 51 backs through in the barrel chamber that back cylinder cover 4 enters secondary booster cylinder barrel 7, lives
Plug rear bar 51, cylinder barrel 3, back cylinder cover 6 are formed with the B chamber of rear bar, and back cylinder cover 6, piston rear bar 51, secondary booster cylinder barrel 7 are formed
The C chamber of rear bar, the effective area in B chamber is more than A chamber, and the effective area in C chamber is less than A chamber, and A chamber, B chamber and C cavity area ratio are 1:
1.5:0.8, A, B, C tri-chamber be respectively provided with the oil circuit of externally connection.
As it is shown on figure 3, hydraulic schematic diagram, including 201 to 208 totally 8 two-way plug-in valves and with two-way plug-in valve one a pair
The DT201 to DT208 answered totally 8 electromagnetic priority valves, also include shuttle valve 209, and its effect is for from two-way plug-in valve 207A chamber
With oil circuit control selection pressure compared with great mono-tunnel as two-way plug-in valve 207 control pressure with ensure DT207 to two-way plug-in mounting
Valve 207 effectively controls, and controls multi-stage booster cylinder and is applied to during hydraulic press supercharging comprise the steps, wherein multi-stage booster cylinder is upper
State the multi-stage booster cylinder shown in Fig. 2
[1] main hydraulic cylinder be in prepare pressurization state, except DT205 obtain electric in addition to, remaining electromagnetic priority valve is all in dead electricity
State, main hydraulic cylinder is in depressurization phase, and multi-stage booster cylinder piston 2 is in the high order end in compacting cyclic process；
[2] DT201, DT207, DT205 obtain electric, and system pressure oil is entered on master cylinder by inserted valve 201 and inserted valve 207
Chamber, main hydraulic cylinder has been pressurized to close to hydraulic power source pressure by HYDRAULIC CONTROL SYSTEM hydraulic power source,
[3] DT202, DT207, DT208, DT205 obtain electric, and HYDRAULIC CONTROL SYSTEM hydraulic power source inserted valve 201 is to B chamber input pressure
Power oil, chamber, C chamber is by inserted valve 208 release, and it is B cavity area/A chamber that A chamber exports pressure ratio by inserted valve 207 to main hydraulic cylinder
The hydraulic oil through supercharging of area, it is achieved first order supercharging；
[4] DT202, DT203, DT207, DT205 obtain electric, and HYDRAULIC CONTROL SYSTEM hydraulic power source passes through inserted valve 201 respectively, inserts
Dress valve 202 is simultaneously entered pressure oil to B chamber and C chamber, and A chamber inserted valve 207 is (B cavity area+C to main hydraulic cylinder output pressure ratio
Cavity area) hydraulic oil through supercharging of/A cavity area, it is achieved second level supercharging, complete pressurization.
Control multi-stage booster cylinder to be applied to hydraulic press pressing process and terminate release energy regenerating and comprise the steps, Qi Zhongduo
Level pressurized cylinder is the multi-stage booster cylinder shown in above-mentioned Fig. 2
[1] except DT205 obtain electric in addition to, remaining electromagnetic priority valve is in through supercharging complete all in power failure state, main hydraulic cylinder
Becoming compacting action to prepare depressurization phase, multi-stage booster cylinder piston 2 is in the low order end in compacting cyclic process；
[2] DT202, DT207, DT208, DT205 obtain electric, and inserted valve 207 and main hydraulic cylinder are passed through in HYDRAULIC CONTROL SYSTEM A chamber
Epicoele connects, and C chamber connects Accumulator arrangements to oil return pipe release, B chamber by inserted valve 202 by inserted valve 208, main hydraulic cylinder
Hydraulic oil realizes, through multi-stage booster cylinder, the decompression backward Accumulator arrangements topping up that Pressure reducing ratio is A cavity area/B cavity area；
[3] DT201, DT207, DT205 obtain electric, and HYDRAULIC CONTROL SYSTEM main hydraulic cylinder epicoele passes through inserted valve 201 and plug-in mounting
Valve 207 connects accumulator, and main hydraulic cylinder epicoele is directly to Accumulator arrangements topping up.
[4] DT203, DT205, DT206, DT207 obtain electric, owing to C cavity area is less than A cavity area, HYDRAULIC CONTROL SYSTEM A chamber
Being connected with main hydraulic cylinder epicoele by inserted valve 207, C chamber connects Accumulator arrangements by inserted valve 203, and inserted valve 206 is passed through in B chamber
To oil return pipe release, it is A cavity area/C cavity area that the hydraulic oil of main hydraulic cylinder realizes pressure ratio through many area ratio pressurized cylinder
To Accumulator arrangements topping up after supercharging；
[5] DT205 dead electricity, master cylinder epicoele to by inserted valve 205 fuel tank off-load until replenishing valve open, finally unload and be depressed into
Tank pressure is identical, completes stress-relief process.
The not described part of the present invention is same as the prior art.
Claims (8)
1. multi-stage booster cylinder pressurization using method, it is characterised in that comprise the steps,
[1] multi-stage booster cylinder is provided, including front end housing, cylinder barrel, piston and back cylinder cover, piston, the front bar of piston and front end housing
Being formed with the A chamber of front bar, its composition is characterized by: also include secondary booster cylinder barrel, and piston has rear bar, secondary booster cylinder barrel
Being fixedly mounted on the rear of back cylinder cover, piston rear bar backs through in the barrel chamber that back cylinder cover enters secondary booster cylinder barrel, after piston
Bar, cylinder barrel, back cylinder cover are formed with the B chamber of rear bar, and back cylinder cover, piston rear bar, secondary booster cylinder barrel are formed with the C chamber of rear bar, B chamber
With in C chamber at least the effective area in a chamber more than the effective area in A chamber, wherein effective area bigger for D chamber, effective area
Less for E chamber, A, B, C tri-chamber be respectively provided with the oil circuit of externally connection,
[2] HYDRAULIC CONTROL SYSTEM hydraulic power source is D chamber to D chamber input pressure oil, the release of E chamber, A chamber to main hydraulic cylinder output pressure ratio
The hydraulic oil through supercharging of area/A cavity area, it is achieved first order supercharging；
[3] HYDRAULIC CONTROL SYSTEM hydraulic power source is simultaneously entered pressure oil to D chamber and E chamber, and A chamber is (D to main hydraulic cylinder output pressure ratio
Cavity area+E cavity area) hydraulic oil through supercharging of/A cavity area, it is achieved second level supercharging, complete pressurization.
Multi-stage booster cylinder the most according to claim 1 pressurization using method, it is characterised in that A chamber, B chamber and C cavity area
Ratio is 1:1.5:0.8.
Multi-stage booster cylinder the most according to claim 1 pressurization using method, it is characterised in that A chamber, B chamber and C chamber are effective
Area ratio is 1:0.8:1.5.
Multi-stage booster cylinder the most according to claim 1 pressurization using method, it is characterised in that before step [2], hydraulic pressure system
System controls hydraulic power source and is pressurized to main hydraulic cylinder close to hydraulic power source pressure.
5. multi-stage booster cylinder release using method, it is characterised in that comprise the steps,
[1] multi-stage booster cylinder is provided, including front end housing, cylinder barrel, piston and back cylinder cover, piston, the front bar of piston and front end housing
Being formed with the A chamber of front bar, its composition is characterized by: also include secondary booster cylinder barrel, and piston has rear bar, secondary booster cylinder barrel
Being fixedly mounted on the rear of back cylinder cover, piston rear bar backs through in the barrel chamber that back cylinder cover enters secondary booster cylinder barrel, after piston
Bar, cylinder barrel, back cylinder cover are formed with the B chamber of rear bar, and back cylinder cover, piston rear bar, secondary booster cylinder barrel are formed with the C chamber of rear bar, B chamber
With in C chamber at least the effective area in a chamber more than the effective area in A chamber, wherein effective area bigger for D chamber, effective area
Less for E chamber, A, B, C tri-chamber be respectively provided with the oil circuit of externally connection,
[2] HYDRAULIC CONTROL SYSTEM A chamber connects with main hydraulic cylinder epicoele, and E chamber is to oil return pipe release, D chamber connection Accumulator arrangements, main liquid
The hydraulic oil of cylinder pressure realizes, through multi-stage booster cylinder, the decompression backward Accumulator arrangements topping up that Pressure reducing ratio is A cavity area/D cavity area.
Multi-stage booster cylinder release using method the most according to claim 5, it is characterised in that include step after step [2]
Suddenly [3], HYDRAULIC CONTROL SYSTEM A chamber connects with main hydraulic cylinder epicoele, and E chamber connection Accumulator arrangements, D chamber is to oil return pipe release, main liquid
The hydraulic oil of cylinder pressure after multi-stage booster cylinder realizes the supercharging that pressure ratio is A cavity area/E cavity area to Accumulator arrangements topping up.
Multi-stage booster cylinder release using method the most according to claim 5, it is characterised in that A chamber, B chamber and C cavity area
Ratio is 1:1.5:0.8.
Multi-stage booster cylinder release using method the most according to claim 5, it is characterised in that A chamber, B chamber and C chamber are effective
Area ratio is 1:0.8:1.5.
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| CN103470549B (en) * | 2013-09-25 | 2014-09-10 | 山东科技大学 | Pressurizing cylinder |
| CN103452940B (en) * | 2013-09-25 | 2014-08-20 | 山东科技大学 | Integrated valve block |
| CN103470550B (en) * | 2013-09-25 | 2014-09-10 | 山东科技大学 | Pressurizing device |
| CN107939779B (en) * | 2017-11-24 | 2024-05-24 | 冯广建 | Damping type hydraulic cylinder action signal supercharging device |
| CN110563089A (en) * | 2019-08-05 | 2019-12-13 | 江苏科技大学 | High-pressure energy recovery device for reverse osmosis seawater desalination system |
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