CN106050760B - Four piston air water pressurized cylinders - Google Patents
Four piston air water pressurized cylinders Download PDFInfo
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- CN106050760B CN106050760B CN201610481925.1A CN201610481925A CN106050760B CN 106050760 B CN106050760 B CN 106050760B CN 201610481925 A CN201610481925 A CN 201610481925A CN 106050760 B CN106050760 B CN 106050760B
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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
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
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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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
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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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
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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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention proposes a kind of four piston air water pressurized cylinders, by the way that four pistons are arranged, and ejection-spring is added in rear end, the displacement of force-stroke can be substantially increased under the same duty cycle time, expand the application range of air water pressurized cylinder, the flow velocity of gas is greatly improved, it is energy saving so as to shorten the time of force-stroke；Daming piston is increased, the pressure oscillation of high pressure chest can be effectively slowed down, so that the course of work is more steady reliable, improves the reliability of product；It uses liquid medium for water, not only improves the response of air water pressurized cylinder, but also pollution-free, greatly expand the application range of pneumohydraulic pressure-cylinder.
Description
Technical field
The present invention relates to Hydraulic Elements fields, more particularly to a kind of four piston air water pressurized cylinders.
Background technique
Nowadays social modernization is fast-developing, and many factories use flow line production, so that producing in enormous quantities, become can
Energy.Gas-liquid power-increasing cylinder is to be integrated with a kind of executive component of both hydraulic drive and Pneumatic Transmission advantage, for driving machine
Operating mechanism completes to move back and forth, and in impulse stroke output action power.Gas-liquid power-increasing cylinder is by input gas compression energy, through increasing
Power cylinder is converted to hydraulic energy, output mechanical energy, therefore existing Pneumatic Transmission clean and environmental protection, saves that resource, response be fast, installation maintenance
Convenient, advantage at low cost, and have that hydraulic drive High power output, control performance are good, high-efficient, system composition is simple, use
Process impacts small, output action power and speed adjusts easy advantage, can be widely used for needing very big power output while also require
In complete machine structure is simple, at low cost, easy to use, impact vibration is small machine equipment, for example, without rivet riveter, puncher,
Press machine, cutter, bending machine, pressing machine, straightener, metallurgical machinery, plastic machine, lithium battery equipment etc..In automobile, electricity
The mechanical processing industries market demand such as son, household electrical appliances, metal plate is very big.
But pneumohydraulic pressure-cylinder also has the shortcomings that force-stroke very little, also limits pneumohydraulic pressure-cylinder and widely applies.
Available data shows that Germany TOX pneumohydraulic pressure-cylinder maximum force-stroke also can only achieve 60mm.If the force-stroke of pneumohydraulic pressure-cylinder
It is capable of increasing, we can substitute the field of more hydraulic systems with pneumohydraulic pressure-cylinder.The force-stroke of pneumohydraulic pressure-cylinder just limits
Pneumohydraulic pressure-cylinder is widely applied.Force-stroke very little mainly has two aspect reasons to lead on the one hand due to the presence of pressure ratio
Although causing the displacement of charged piston big, the displacement very little of working piston is arrived in conversion；On the other hand due to pushing charged piston fortune
Dynamic, booster cavity gas will reach certain gas pressure, will cause booster cavity gas and pneumatically change with the two-position four-way for connecting gas source
To valve pressure difference very little, gas flow rate is small, causes start-up study, and duty cycle time is long, and quick feature is not achieved.
Summary of the invention
The present invention proposes that a kind of force-stroke is big, starts fireballing four pistons air water pressurized cylinder.
The technical scheme of the present invention is realized as follows: a kind of four piston air water pressurized cylinders comprising piston cylinder, work are lived
Stopper rod, fast-forward piston, water storage piston, charged piston, ejection piston and pressurization flange, the piston cylinder includes cylinder barrel, Yi Jifen
Not Mi Feng cylinder barrel rear and front end drive end bearing bracket and rear end cap, piston cylinder is simultaneously therefrom divided into front and back two by the pressurization flange seal
A cavity is provided with fast-forward piston and water storage piston in front cavity, charged piston and ejection piston, F.F. is provided in rear chamber
Liquid storage chamber is formed between piston, water storage piston and cylinder barrel, through-hole is provided among drive end bearing bracket, and working piston bar one end and F.F. are living
Plug is fixedly connected, the other end passes through through-hole and is sealed therewith, and liquid medium is stored in liquid storage chamber, offers first on drive end bearing bracket
Ventilation through-hole, the fast-forward piston bottom are provided with cylindrical tube, and the mating surface between cylindrical tube and cylinder barrel is sealed, cylinder barrel
On be provided with the pressure chamber being connected to fast-forward piston rear end and cylindrical tube lateral wall and second ventilation through-hole, second ventilation through-hole
It is connected to pressure chamber, is pressurized on flange and offers third ventilation through-hole, third ventilation through-hole connection water storage piston rear end and supercharge method
Cavity between orchid is pressurized on flange and offers the 4th ventilation through-hole, the 4th ventilation through-hole connection pressurization flange and charged piston
Cavity between front end is provided with the 5th ventilation through-hole on ejection piston, the 6th ventilation through-hole is offered on rear end cap, further includes
Ejection-spring, ejection-spring both ends are fixed with ejection piston and rear end cap respectively.
On the basis of above technical scheme, it is preferred that further include supercharging piston rod, among water storage piston and pressurization flange
It is respectively arranged with through-hole, supercharging piston rod one end is fixed with charged piston, and the other end passes through through-hole and seals therewith.It is further excellent
Choosing, it further includes spacer flanger that the cylinder barrel, which includes preceding cylinder barrel and rear cylinder barrel, spacer flanger both ends connect and fix preceding cylinder barrel with
Cylinder barrel afterwards offers the through-hole passed through for supercharging piston rod among spacer flanger.Still more preferably, the spacer flanger
For the grading structure of intermediate thin, edge thickness.Still more preferably, on the preceding cylinder barrel between the fast-forward piston and spacer flanger
Through-hole is offered, cushion, spring are provided in through-hole, is separately had on the outside of fastener sealing through-hole, both ends of the spring is fixed respectively to be connected
Connect cushion and fastener.
On the basis of above technical scheme, it is preferred that be provided with cushion between charged piston and ejection piston.
On the basis of above technical scheme, it is preferred that further include and the two-position four-way air operated reversing valve, the electricity that connect gas source
Magnetic reversal valve, backstroke fast valve, force-stroke speed governing valve and conversion back pressure speed governing valve, the end P of two-position four-way air operated reversing valve
Mouth is connected to gas source, and the first control port of two-position four-way air operated reversing valve is sequentially connected force-stroke speed governing valve and the second ventilation is logical
Hole；Gas source is also sequentially connected solenoid directional control valve, backstroke fast valve, and backstroke fast valve is separately connected the first ventilation through-hole
With the second ventilation through-hole；Second control port of two-position four-way air operated reversing valve is sequentially connected conversion back pressure speed governing valve and first and changes
Vent hole；The 4th ventilation through-hole of the port A connection of two-position four-way air operated reversing valve；The port B of two-position four-way air operated reversing valve connects
Connect the 6th ventilation through-hole；The T-port of two-position four-way air operated reversing valve connects atmospheric environment.
Four piston air water pressurized cylinders of the invention having the beneficial effect that compared with the existing technology:
(1) traditional pneumohydraulic pressure-cylinder is all to increase by pressurized cylinder gas pressure to push piston motion, is bound to cause increasing
Chamber and little with the two-position four-way air operated reversing valve pressure difference for connecting gas source is pressed, causes gas flow rate little；And the present invention is by setting
Four pistons are set, and add ejection-spring in rear end, when force-stroke starts, charged piston front end is connected with the external world, and pressure is fast
Speed reduces, and the spring of ejection piston is deformation energy storage, and very big power and acceleration can be provided to ejection piston, so that pressurization is lived
The speed of plug increases sharply, and improves the average speed of force-stroke, force-stroke can be substantially increased under the same duty cycle time
Displacement, expands the application range of air water pressurized cylinder；
(2) when force-stroke starts, since ejection-spring power is big, charged piston starting velocity is fast, can be pressurized air cavity
Pressure it is low so that booster cavity and big with the two-position four-way air operated reversing valve pressure difference for connecting gas source, can greatly improve the stream of gas
Speed, so as to shorten the time of force-stroke；Daming piston is increased, the pressure oscillation of high pressure chest can be effectively slowed down, so that work
Process is more steady reliable, improves the reliability of product；
(3) since force-stroke is larger, the stroke of charged piston is also very big；Charged piston return stroke, front end is due to there is height
Chamber is pressed, acceleration condition can be constantly in, ejection-spring can play the role of buffer deceleration in backhaul, and be bullet next time
Storage deformation potential is penetrated, thus energy saving；
(4) charged piston and ejection piston use two independent pistons, can make the drift root of ejection-spring
According to needing to adjust, optimize the performance for improving air water pressurized cylinder convenient for designer；
(5) water storage cylinder and pressurized cylinder use cascaded structure, can be with so that charged piston passes through pressurization flange and water storage piston
Increase the guide frame of charged piston, while increasing friction force, the job stability of air water pressurized cylinder can be improved；
(6) air water pressurized cylinder uses liquid medium for water, not only improves the response of air water pressurized cylinder, but also pollution-free, greatly
The big application range for expanding pneumohydraulic pressure-cylinder.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the cross-sectional view of four piston air water pressurized cylinders of the invention；
Fig. 2 is the enlarged drawing of A boxed area in Fig. 1；
Fig. 3 is the connection relationship diagram of four piston air water pressurized cylinders of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig.1, four piston air water pressurized cylinders of the invention comprising piston cylinder 1, working piston bar 2, fast-forward piston 3,
Water storage piston 4, charged piston 5, ejection piston 6 and pressurization flange 7.
The piston cylinder 1 includes cylinder barrel 12, and seals the drive end bearing bracket 11 and rear end cap 13 of 12 rear and front end of cylinder barrel respectively.
Pressurization flange 7 seals and piston cylinder 1 is therefrom divided into former and later two cavitys, is provided with fast-forward piston in front cavity
3 and water storage piston 4, be provided with charged piston 5 and ejection piston 6 in rear chamber, fast-forward piston 3, water storage piston 4 and cylinder barrel 12 it
Between formed liquid storage chamber 41.Liquid medium is stored in liquid storage chamber 41, in the present invention, the liquid medium is water.Preferably, such as
Shown in Fig. 2, through-hole is offered on the cylinder barrel 12 between the fast-forward piston 3 and spacer flanger 123, is provided with cushion in through-hole
14, spring 15 separately have fastener 16 to seal on the outside of through-hole, and 15 both ends of spring are respectively fixedly connected with cushion 14 and fastener 16.
In this way, cushion 14,15 mating reaction of spring can play buffer function when pressure is excessive in liquid storage chamber 41.
Through-hole is provided among drive end bearing bracket 11,2 one end of working piston bar is fixedly connected with fast-forward piston 3, the other end passes through
Through-hole simultaneously seals therewith.In this way, the piston rod 2 that can be pushed the work forward by fast-forward piston 3 moves forward and backward, externally do work.Drive end bearing bracket 11
On offer the first ventilation through-hole 111.
3 bottom of fast-forward piston is provided with cylindrical tube 31, and the mating surface between cylindrical tube 31 and cylinder barrel 12 is close
It seals, the pressure chamber 32 being connected to 3 rear end of fast-forward piston and 31 lateral wall of cylindrical tube is provided on cylinder barrel 12 and the second ventilation is logical
Hole 112, the second ventilation through-hole 112 are connected to pressure chamber 32, are pressurized on flange 7 and offer third ventilation through-hole 113, and third ventilation is logical
The cavity that hole 113 is connected to 4 rear end of water storage piston and is pressurized between flange 7 is pressurized on flange 7 and offers the 4th ventilation through-hole 114,
The 4th ventilation connection of through-hole 114 is pressurized the cavity between flange 7 and 5 front end of charged piston, is provided with the 5th on ejection piston 6 and changes
Vent hole 115 offers the 6th ventilation through-hole 116 on rear end cap 13.Specifically, further including and the two-position four-way gas that connect gas source
Dynamic reversal valve 81, solenoid directional control valve 82, backstroke fast valve 83, force-stroke speed governing valve 84 and conversion back pressure speed governing valve 85, two
The port P of position four-way air operated reversing valve 81 is connected to gas source, and the first control port of two-position four-way air operated reversing valve 81 successively connects
Relay stroke speed adjusting valve 84 and the second ventilation through-hole 112；Gas source is also sequentially connected solenoid directional control valve 82, backstroke fast valve
83, backstroke fast valve 83 is separately connected the first ventilation through-hole 111 and the second ventilation through-hole 112；Two-position four-way pneumatically commutates
Second control port of valve 81 is sequentially connected conversion back pressure speed governing valve 85 and the first ventilation through-hole 111；Two-position four-way pneumatically commutates
The 4th ventilation through-hole 114 of the port A connection of valve 81；The 6th ventilation through-hole of the port B connection of two-position four-way air operated reversing valve 81
116；The T-port of two-position four-way air operated reversing valve 81 connects atmospheric environment.
It further include ejection-spring 8,8 both ends of ejection-spring are fixed with ejection piston 6 and rear end cap 13 respectively.In this way, in power
When stroke starts, since 8 power of ejection-spring is big, 5 starting velocity of charged piston is fast.Preferably, charged piston 6 and ejection piston 7
Between be provided with cushion 62.In this way, returning buffering may be implemented.
Preferably, further include supercharging piston rod 51, be respectively arranged with through-hole among water storage piston 4 and pressurization flange 7, be pressurized
51 one end of piston rod and charged piston 5 are fixed, and the other end passes through through-hole and seals therewith.So, on the one hand, can prevent pressurization from living
Plug 5 is dug；On the other hand, it also may make the operation of charged piston 5 more stable.It is further preferred that before the cylinder barrel 12 includes
Cylinder barrel 121 and rear cylinder barrel 122 further include spacer flanger 123, are offered among spacer flanger 123 logical for supercharging piston rod 51
The through-hole crossed.The spacer flanger 123 is the grading structure of intermediate thin, edge thickness.In this way, F.F. process moisturizing can be facilitated.
The course of work of four piston air water pressurized cylinders of the invention is as follows:
When work, solenoid directional control valve 82 is placed in left position, and gas source enters the second ventilation through-hole 112 by solenoid directional control valve 82,
The piston rod 2 that pushes the work forward quickly moves, and reaches the location of workpiece and realizes soft landing；At the same time since third ventilation through-hole 113 is carried on the back
Pressure effect, pushes 4 water storage cavity of water storage piston, 41 moisturizing.As F.F. process is completed, the second ventilation 112 pressure increase of through-hole, warp
Exertin stroke speed adjusting valve 84, reach with after 81 cracking pressure of two-position four-way air operated reversing valve for connecting gas source, the 4th ventilation through-hole
114 are connected with the external world, and the 6th ventilation through-hole 116 is connected with third ventilation through-hole 113.Since the 4th ventilation 114 pressure of through-hole is fast
Speed reaches ambient pressure, 6 force unbalance of ejection piston, and spring force pushes ejection-spring 8 and charged piston 5 quickly to accelerate.And
It is quickly moved due to ejection piston 6 by spring force at this time, causes the 6th ventilation 116 pressure of through-hole not high, so that with gas source is connect
81 two sides six of two-position four-way air operated reversing valve ventilation through-hole 116 and 82 pressure difference of solenoid directional control valve it is larger, but also gas flow rate
Increase, the flow into the 6th ventilation through-hole 116 increases.Increasing as charged piston 5 is displaced, 8 spring force of ejection-spring reduces,
But gas pressure increases, and the speed of charged piston 5 has reached higher level at this time, so that the force-stroke time subtracts significantly
It is small.After the completion of pressurization, the commutation of solenoid directional control valve 82 is placed in right position, with 81 gas of two-position four-way air operated reversing valve for connecting gas source
Body enters the first ventilation through-hole 111 by conversion back pressure speed governing valve 85, controls with the two-position four-way air operated reversing valve 81 for connecting gas source
The pressure reduction at end processed rises with the 81 back pressure end pressure of two-position four-way air operated reversing valve for connecting gas source, so that with gas source is connect
Two-position four-way air operated reversing valve 81 commutation be placed in right position；Ejection-spring 8 is connected with the external world on the right side of pressurized cylinder, and pressure drops rapidly
Low, 2 backhaul of working piston bar, 51 backhaul of supercharging piston rod, high pressure cavity pressure reduces rapidly, ejection piston 6 and ejection in backhaul
Spring 8 plays buffering energy-absorbing function.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of four piston air water pressurized cylinders comprising piston cylinder (1), working piston bar (2), fast-forward piston (3), water storage piston
(4), charged piston (5), ejection piston (6) and pressurization flange (7), the piston cylinder (1) includes cylinder barrel (12), and close respectively
Seal the drive end bearing bracket (11) and rear end cap (13) of cylinder barrel (12) rear and front end, it is characterised in that: the pressurization flange (7) seal and from
It is middle that piston cylinder (1) is divided into former and later two cavitys, fast-forward piston (3) and water storage piston (4), rear chamber are provided in front cavity
It is inside provided with charged piston (5) and ejection piston (6), forms storage between fast-forward piston (3), water storage piston (4) and cylinder barrel (12)
Sap cavity (41), drive end bearing bracket (11) is intermediate to be provided with through-hole, and working piston bar (2) one end is fixedly connected with fast-forward piston (3), is another
End is sealed across through-hole and therewith, is stored with liquid medium in liquid storage chamber (41), and the first ventilation is offered on drive end bearing bracket (11) and is led to
Hole (111), fast-forward piston (3) bottom are provided with cylindrical tube (31), matching between cylindrical tube (31) and cylinder barrel (12)
Conjunction face is sealed, and the pressure chamber being connected to fast-forward piston (3) rear end and cylindrical tube (31) lateral wall is provided on cylinder barrel (12)
(32) with the second ventilation through-hole (112), the second ventilation through-hole (112) connection pressure chamber (32) offers the in pressurization flange (7)
Three ventilations through-hole (113), the cavity that third is taken a breath between through-hole (113) connection water storage piston (4) rear end and pressurization flange (7),
The 4th ventilation through-hole (114) is offered in pressurization flange (7), the 4th ventilation through-hole (114) connection pressurization flange (7) and pressurization are lived
The cavity between (5) front end is filled in, the 5th ventilation through-hole (115) is provided on ejection piston (6), the is offered on rear end cap (13)
Six ventilations through-hole (116), further include ejection-spring (8), ejection-spring (8) both ends respectively with ejection piston (6) and rear end cap
(13) fixed；Two-position four-way air operated reversing valve (81), solenoid directional control valve (82), the backstroke high speed for further including and connecting gas source
Valve (83), force-stroke speed governing valve (84) and conversion back pressure speed governing valve (85), the port the P connection of two-position four-way air operated reversing valve (81)
To gas source, the first control port of two-position four-way air operated reversing valve (81) is sequentially connected force-stroke speed governing valve (84) and the second ventilation
Through-hole (112)；Gas source is also sequentially connected solenoid directional control valve (82), backstroke fast valve (83), backstroke fast valve (83)
It is separately connected the first ventilation through-hole (111) and the second ventilation through-hole (112)；Second control of two-position four-way air operated reversing valve (81)
Port is sequentially connected conversion back pressure speed governing valve (85) and the first ventilation through-hole (111)；The end A of two-position four-way air operated reversing valve (81)
The 4th ventilation through-hole (114) of mouth connection；The 6th ventilation through-hole (116) of the port B connection of two-position four-way air operated reversing valve (81)；Two
The T-port of position four-way air operated reversing valve (81) connects atmospheric environment.
2. four pistons air water pressurized cylinder as described in claim 1, it is characterised in that: further include supercharging piston rod (51), water storage
Through-hole is respectively arranged among piston (4) and pressurization flange (7), supercharging piston rod (51) one end and charged piston (5) are fixed,
The other end passes through through-hole and seals therewith.
3. four pistons air water pressurized cylinder as claimed in claim 2, it is characterised in that: the cylinder barrel (12) includes preceding cylinder barrel
It (121) and rear cylinder barrel (122), further include spacer flanger (123), cylinder barrel (121) before spacer flanger (123) both ends connect and fix
With rear cylinder barrel (122), spacer flanger (123) is intermediate to offer the through-hole passed through for supercharging piston rod (51).
4. four pistons air water pressurized cylinder as claimed in claim 3, it is characterised in that: the spacer flanger (123) be intermediate thin,
The grading structure of edge thickness.
5. four pistons air water pressurized cylinder as claimed in claim 3, it is characterised in that: the fast-forward piston (3) and spacer flanger
(123) through-hole is offered on the preceding cylinder barrel (121) between, cushion (14), spring (15) are provided in through-hole, separately there is fastener
(16) on the outside of sealing through-hole, spring (15) both ends are respectively fixedly connected with cushion (14) and fastener (16).
6. four pistons air water pressurized cylinder as described in claim 1, it is characterised in that: charged piston (5) and ejection piston (6)
Between be provided with cushion (62).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610481925.1A CN106050760B (en) | 2016-06-27 | 2016-06-27 | Four piston air water pressurized cylinders |
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| CN201610481925.1A CN106050760B (en) | 2016-06-27 | 2016-06-27 | Four piston air water pressurized cylinders |
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| CN107237783B (en) * | 2017-08-09 | 2019-03-01 | 烟台海得力克模具自动化有限公司 | A kind of accumulation of energy supercharging device |
| CN108050124A (en) * | 2017-12-27 | 2018-05-18 | 宣城铁凝机械有限公司 | A kind of hydraulic cylinder of knife striking cylinder |
| CN112303059B (en) * | 2020-11-19 | 2022-06-24 | 西安航空学院 | Gas-liquid composite driving type speed increasing cylinder device |
| CN112648258B (en) * | 2020-12-29 | 2024-04-26 | 江苏恒立液压股份有限公司 | Buffer cylinder before and after oil-gas mixing |
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| CN106050760A (en) | 2016-10-26 |
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