CN107859669A - A kind of knife striking cylinder of high sealed - Google Patents
A kind of knife striking cylinder of high sealed Download PDFInfo
- Publication number
- CN107859669A CN107859669A CN201711438480.XA CN201711438480A CN107859669A CN 107859669 A CN107859669 A CN 107859669A CN 201711438480 A CN201711438480 A CN 201711438480A CN 107859669 A CN107859669 A CN 107859669A
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- China
- Prior art keywords
- cylinder
- hydraulic
- piston
- knife striking
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 18
- 239000012071 phase Substances 0.000 claims description 18
- 230000005501 phase interface Effects 0.000 claims description 11
- 230000001050 lubricating effect Effects 0.000 claims description 9
- 239000007791 liquid phase Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 18
- 238000004080 punching Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000010727 cylinder oil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
Classifications
-
- 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
- F15B15/1404—Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
-
- 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
- F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons
-
- 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
- F15B15/1414—Characterised by the construction of the motor unit of the straight-cylinder type with non-rotatable piston
-
- 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
-
- 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
- F15B15/1452—Piston sealings
-
- 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
- F15B2215/00—Fluid-actuated devices for displacing a member from one position to another
- F15B2215/30—Constructional details thereof
Abstract
The invention discloses a kind of knife striking cylinder of high sealed, belong to parts machining technical field, be made up of superposed pneumatic cylinder and the hydraulic cylinder linkage positioned at bottom, the side of the cylinder is additionally provided with coupled logical oil cylinder；The madial wall of the pneumatic cylinder is provided with soft seal sleeve, closed packing space is formed between the soft seal sleeve and the inwall of the pneumatic cylinder, it is filled with sealing fluid, the lateral wall of the cylinder piston is formed with the soft seal sleeve and is tightly connected；The hydraulic cylinder is made up of the hydraulic cavities on top and the atmospheric pressure cavity of bottom；The top of the oil cylinder is provided with gas phase pressurization mouth, and bottom is connected with the hydraulic cavities of the hydraulic cylinder.The knife striking cylinder is used for process component, is promoted by pneumatic cylinder and pressurization is realized under hydraulic cylinder, has the advantages of good sealing effect, frictional force is small, frictional dissipation is few, stability is good low with fault rate.
Description
Technical field
The present invention relates to parts machining technical field, in particular to a kind of knife striking cylinder of high sealed.
Background technology
Knife striking cylinder is that a kind of power for being punched out to forging, in the relatively process such as straight, bending, extrusion forming passes
Mechanism is passed, its generally use pneumatic cylinder and oil hydraulic cylinder linkage realize that power conducts, and the wherein structures shape of pneumatic cylinder is entirely beaten
The reaction rate of knife cylinder and the precision of operation, and the structure of hydraulic cylinder then determines the punching press dynamics and stably of whole knife striking cylinder
Property, traditional pneumatic cylinder is interior to improve the tightness of cylinder piston using machining accuracy is improved, and is sealed using O-ring,
Hermetic seal is ineffective, and is lost larger after long-time use, and common knife striking cylinder only leans on pneumatic cylinder and hydraulic cylinder itself
Power transmission is realized, is not interlocked mutually with oil cylinder, adds the cost of power transmission, and adds the failure of oil pressure conveying
Rate.
The content of the invention
For above-mentioned technical problem, knife striking cylinder of the present invention is used for process component, and hydraulic cylinder is promoted by pneumatic cylinder
It is lower to realize pressurization, there is the advantages of good sealing effect, frictional force is small, frictional dissipation is few, stability is good low with fault rate.
To achieve the above object, the knife striking cylinder of a kind of high sealed designed by the present invention, by superposed pneumatic cylinder
Link and form with the hydraulic cylinder positioned at bottom, the side of the cylinder is additionally provided with coupled logical oil cylinder；
The pneumatic cylinder is divided into first air cavity on top and two regions of the second air cavity of bottom, first air cavity and described
Being spaced apart by cylinder piston sealing between two air cavitys, the cylinder piston is being provided with gas positioned at the side of second air cavity
Cylinder piston rod, the cylinder piston rod run through second air cavity bottom, and with through position be tightly connected, described first
The first air-flow interface is offered on air cavity, the second air-flow interface is offered on second air cavity；The madial wall of the pneumatic cylinder
Soft seal sleeve is provided with, closed packing space is formed between the soft seal sleeve and the inwall of the pneumatic cylinder,
It is filled with sealing fluid, the lateral wall of the cylinder piston is formed with the soft seal sleeve and is tightly connected；
Sealing fluid is typically lubricating oil；
The hydraulic cylinder is made up of the hydraulic cavities on top and the atmospheric pressure cavity of bottom, is set between the hydraulic cavities and the atmospheric pressure cavity
There is hydraulic piston, the bottom of the hydraulic piston is provided with liquid presses piston pole, liquid phase interface is provided with the top of the hydraulic cavities,
The bottom of the atmospheric pressure cavity is provided with gas phase interface, and the liquid presses piston pole is through the bottom of the atmospheric pressure cavity and close with through part
Envelope connection；
Oil phase entrance is provided between the pneumatic cylinder and the hydraulic cylinder；
The top of the oil cylinder is provided with gas phase pressurization mouth, and bottom is connected with the hydraulic cavities of the hydraulic cylinder.
As the preferred of above-mentioned technical proposal, it is provided between the first air-flow interface and first air cavity roundabout
Passage.
As the preferred of above-mentioned technical proposal, it is provided between the second air-flow interface and second air cavity roundabout
Passage.
As the preferred of above-mentioned technical proposal, the lateral wall of the cylinder piston is outwardly cambered surface
As the preferred of above-mentioned technical proposal, the lower surface of the cylinder piston is circular plane.
As the preferred of above-mentioned technical proposal, the cylinder piston rod is arranged at the center of circle of the cylinder piston lower surface
On.
As the preferred of above-mentioned technical proposal, end of the cylinder piston rod away from the cylinder piston is outwardly
Arcwall face.
When pushing, pushing process when outwardly arcwall face contacts with oil phase is softer, and oil phase is more collected
In push center to, positioning is more accurate.
As the preferred of above-mentioned technical proposal, the soft seal sleeve connected by adjacent lubricating layer with elastic layer and
Into wherein the lubricating layer is in contact and is tightly connected with the lateral wall of the cylinder piston.
The cambered surface of the protrusion of the lateral wall of cylinder piston and the inwall of soft seal sleeve（That is lubricating layer）Mutually extruding contact
Form sealing, lubricating layer is made up of the small lubricious material of frictional force, such as PTFE films, can reducing friction resistance, cylinder is lived
Smoothly run under beyond the Great Wall, and reduce loss, elastic layer is made up of elastomeric material, such as rubber, can provided when being squeezed
Tensile force, ensure sealing effectiveness.
As the preferred of above-mentioned technical proposal, the upper and lower surface of the hydraulic piston is the flat of circular contour
Face.
As the preferred of above-mentioned technical proposal, the circle centre position of the hydraulic piston upper surface offers hydraulic pressure groove.
As the preferred of above-mentioned technical proposal, the hydraulic pressure groove is columned groove, and it runs through the hydraulic piston
And part is deep into the liquid presses piston pole.
As the preferred of above-mentioned technical proposal, the bottom surface of the hydraulic pressure groove is reclinate arcwall face.
Hydraulic pressure groove concentrates oil phase in the inner, enables to what hydraulic coupling more concentrated to act on liquid presses piston pole,
Larger stamping press and stable punching press effect are realized, and part oil phase dosage can be saved.
As the preferred of above-mentioned technical proposal, the groove for mounting O-shaped rings is offered in the hydraulic piston side wall.
As the preferred of above-mentioned technical proposal, the bottom of the liquid presses piston pole is provided with drift.
During practical operation, in-oil cylinder oil phase is pressed into hydraulic cavities by gas by the gas phase mouth that pressurizes, and gas is again by the
One air-flow interface enters the first air-chamber pressing, the related cylinder piston rod of cylinder piston is pressed downward, now the gas of the second air cavity
Automatically flowed out from the second air-flow interface, realize the depression of cylinder piston rod, under the drive of pneumatic cylinder, oil phase is by liquid
Pressure piston is depressed into downwards certain stroke together with liquid presses piston pole, and now the air in atmospheric pressure cavity is discharged by gas phase interface automatically, real
An existing punching press；During reset, gas first passes through the second air-flow interface and enters the second air-chamber pressing, and the related cylinder of cylinder piston is lived
Stopper rod pushes up, and now the gas of the first air cavity automatically flows out from the first air-flow interface, and in-oil cylinder oil phase rises, gas from
Gas phase pressurization mouth effusion, realizes the reset operation of cylinder piston rod, is pressurizeed from gas phase interface into atmospheric pressure cavity, by hydraulic piston
Reset is pushed up together with liquid presses piston pole, oil phase is flowed out by liquid phase interface out of hydraulic cavities, until completing to reset.
The present invention compared with prior art, has advantages below and beneficial effect：
The knife striking cylinder is used for process component, is promoted by pneumatic cylinder and pressurization is realized under hydraulic cylinder, has good sealing effect, frictional force
Small, the advantages of frictional dissipation is few, stability is good low with fault rate.
Brief description of the drawings
Fig. 1 is the knife striking cylinder structural representation of high sealed.
Fig. 2 is the Pneumatic cylinder structure schematic diagram of knife striking cylinder.
Fig. 3 is Fig. 2 A areas enlarged drawing.
Fig. 4 is the hydraulic cylinder structure schematic diagram of knife striking cylinder.
In figure：Pneumatic cylinder a, the first air cavity a-1, the second air cavity a-2, cylinder piston a-3, cylinder piston rod a-4, the first gas
Stream interface a-5, the second air-flow interface a-6, soft seal sleeve a-7, lubricating layer a-7.1, elastic layer a-7.2, hydraulic cylinder b, liquid
Press chamber b-1, atmospheric pressure cavity b-2, hydraulic piston b-3, liquid presses piston pole b-4, liquid phase interface b-5, gas phase interface b-6, hydraulic pressure groove
B-7, drift b-8, oil cylinder c, gas phase pressurization mouth c-1.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
Embodiment 1：With reference to 1 ~ Fig. 4 of figure, a kind of knife striking cylinder of high sealed, by superposed pneumatic cylinder a and positioned at bottom
Hydraulic cylinder b linkages are formed, and the side of the cylinder a is additionally provided with coupled logical oil cylinder c, the pneumatic cylinder a and the liquid
Oil phase entrance is provided between cylinder pressure b；
The pneumatic cylinder a is divided to the first air cavity a-1 for top and two regions of the second air cavity a-2 of bottom, first air cavity
It is spaced apart between a-1 and the second air cavity a-2 by what cylinder piston a-3 was sealed；
The lateral wall of the cylinder piston a-3 is outwardly cambered surface, lower surface is circular plane, its cross section is round
Shape；
The cylinder piston a-3 is being provided with cylinder piston rod a-4 positioned at the side of the second air cavity a-2, and the cylinder is lived
Stopper rod a-4 is arranged on the center of circle of the cylinder piston a-3 lower surfaces, and the cylinder piston rod a-4 runs through second air cavity
A-2 bottom, and with through position be tightly connected, ends of the cylinder piston rod a-4 away from the cylinder piston a-3 is outside
The arcwall face of protrusion；
Offered on the first air cavity a-1 and offer the second air-flow on the first air-flow interface a-5, the second air cavity a-2 and connect
Mouthful a-6, between the first air-flow interface a-5 and the first air cavity a-1, the second air-flow interface a-6 and described second
Roundabout passage is provided between air cavity a-2；
The madial wall of the pneumatic cylinder is provided with soft seal sleeve a-7, the soft seal sleeve a-7 and the pneumatic cylinder
Closed packing space is formed between inwall, it is filled with sealing fluid a-8, the lateral wall of the cylinder piston a-3 with it is described
Soft seal sleeve a-7, which is formed, to be tightly connected, and the soft seal sleeve a-7 is by adjacent lubricating layer a-7.1 and elastic layer a-
7.2 are formed by connecting, wherein the lubricating layer a-7.1 is in contact and is tightly connected with the lateral wall of the cylinder piston a-3；
The hydraulic cylinder b is made up of the hydraulic cavities b-1 on top and the atmospheric pressure cavity b-2 of bottom, the hydraulic cavities b-1 and the air pressure
Hydraulic piston b-3 is provided between chamber b-2, the bottom of the hydraulic piston b-3 is provided with liquid presses piston pole b-4；
The upper and lower surface of the hydraulic piston b-3 is the plane of circular contour, is offered in side wall for mounting O-shaped
The groove of circle, it is columned groove that the circle centre position of upper surface, which offers hydraulic pressure groove b-7, the hydraulic pressure groove b-7, and it runs through
The hydraulic piston b-3 is simultaneously partly deep into the liquid presses piston pole b-4, and its bottom surface is reclinate arcwall face；
The bottom that liquid phase interface b-5, the atmospheric pressure cavity b-2 are provided with the top of the hydraulic cavities b-1 is provided with gas phase interface b-
6；
The liquid presses piston pole b-4 is tightly connected through the bottom of the atmospheric pressure cavity b-2 and with through part, the liquid presses piston pole
B-4 bottom is provided with drift b-8；
The top of the oil cylinder c is provided with gas phase pressurization mouth c-1, and bottom is connected with the hydraulic cavities b-1 of the hydraulic cylinder b.
Claims (10)
- A kind of 1. knife striking cylinder of high sealed, it is characterised in that：By superposed pneumatic cylinder（a）With the hydraulic cylinder positioned at bottom （b）Linkage is formed, the cylinder（a）Side be additionally provided with coupled logical oil cylinder（c）；The pneumatic cylinder（a）It is divided into first air cavity on top（a-1）With the second air cavity of bottom（a-2）Two regions, described One air cavity（a-1）With second air cavity（a-2）Between by cylinder piston（a-3）Sealing is spaced apart；The cylinder piston（a- 3）Positioned at second air cavity（a-2）Side be provided with cylinder piston rod（a-4）, the cylinder piston rod（a-4）Run through Second air cavity（a-2）Bottom, and with through position be tightly connected；First air cavity（a-1）On offer first Air-flow interface（a-5）, second air cavity（a-2）On offer the second air-flow interface（a-6）；The madial wall of the pneumatic cylinder is provided with soft seal sleeve（a-7）, the soft seal sleeve（a-7）With the air pressure Closed packing space is formed between the inwall of cylinder, it is filled with sealing fluid（a-8）, the cylinder piston（a-3）Outside Wall and the soft seal sleeve（a-7）Formed and be tightly connected；The hydraulic cylinder（b）By the hydraulic cavities on top（b-1）With the atmospheric pressure cavity of bottom（b-2）Form, the hydraulic cavities（b-1）With The atmospheric pressure cavity（b-2）Between be provided with hydraulic piston（b-3）, the hydraulic piston（b-3）Bottom be provided with hydraulic piston Bar（b-4）；The hydraulic cavities（b-1）Top be provided with liquid phase interface（b-5）, the atmospheric pressure cavity（b-2）Bottom be provided with Gas phase interface（b-6）；The liquid presses piston pole（b-4）Through the atmospheric pressure cavity（b-2）Bottom and with through part be tightly connected；The pneumatic cylinder（a）With the hydraulic cylinder（b）Between be provided with oil phase entrance；The oil cylinder（c）Top be provided with gas phase pressurization mouth（c-1）, bottom and the hydraulic cylinder（b）Hydraulic cavities（b-1）Phase Connection.
- A kind of 2. knife striking cylinder of high sealed according to claim 1, it is characterised in that：The first air-flow interface（a- 5）With first air cavity（a-1）Between, the second air-flow interface（a-6）With second air cavity（a-2）Between be respectively provided with There is roundabout passage.
- A kind of 3. knife striking cylinder of high sealed according to claim 1, it is characterised in that：The cylinder piston（a-3）'s Lateral wall is outwardly cambered surface.
- A kind of 4. knife striking cylinder of high sealed according to claim 3, it is characterised in that：The cylinder piston rod（a-4） It is arranged at the cylinder piston（a-3）On the center of circle of lower surface.
- A kind of 5. knife striking cylinder of high sealed according to claim 3 or 4, it is characterised in that：The cylinder piston rod（a- 4）Away from the cylinder piston（a-3）End be outwardly arcwall face.
- A kind of 6. knife striking cylinder of high sealed according to claim 1, it is characterised in that：The soft seal sleeve（a- 7）By adjacent lubricating layer（a-7.1）And elastic layer（a-7.2）It is formed by connecting, wherein the lubricating layer（a-7.1）With the cylinder Piston（a-3）Lateral wall be in contact and be tightly connected.
- A kind of 7. knife striking cylinder of high sealed according to claim 1, it is characterised in that：The hydraulic piston（b-3）'s Upper and lower surface is the plane of circular contour, and the circle centre position of upper surface offers hydraulic pressure groove（b-7）.
- A kind of 8. knife striking cylinder of high sealed according to claim 7, it is characterised in that：The hydraulic pressure groove（b-7）For Columned groove, it runs through the hydraulic piston（b-3）And part is deep into the liquid presses piston pole（b-4）It is interior.
- A kind of 9. knife striking cylinder of high sealed according to claim 8, it is characterised in that：The hydraulic pressure groove（b-7）'s Bottom surface is reclinate arcwall face.
- A kind of 10. knife striking cylinder of high sealed according to claim 1, it is characterised in that：The liquid presses piston pole（b-4） Bottom be provided with drift（b-8）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711438480.XA CN107859669A (en) | 2017-12-27 | 2017-12-27 | A kind of knife striking cylinder of high sealed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711438480.XA CN107859669A (en) | 2017-12-27 | 2017-12-27 | A kind of knife striking cylinder of high sealed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107859669A true CN107859669A (en) | 2018-03-30 |
Family
ID=61707666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711438480.XA Withdrawn CN107859669A (en) | 2017-12-27 | 2017-12-27 | A kind of knife striking cylinder of high sealed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107859669A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3696714A (en) * | 1969-11-11 | 1972-10-10 | Pier Luigi Panigati | Fluid-operated cylinder |
| CN201401386Y (en) * | 2009-02-24 | 2010-02-10 | 肇庆市志成气动有限公司 | Parallel-connection type gas-liquid booster cylinder |
| CN202224990U (en) * | 2011-10-18 | 2012-05-23 | 孙飚 | Novel blowing type air-hydraulic knife-forging cylinder |
| CN202251163U (en) * | 2011-09-16 | 2012-05-30 | 重庆扬照机电设备有限公司 | Gas and liquid transformation pressurizing cylinder |
| CN207795729U (en) * | 2017-12-27 | 2018-08-31 | 宣城铁凝机械有限公司 | A kind of knife striking cylinder of high sealed |
-
2017
- 2017-12-27 CN CN201711438480.XA patent/CN107859669A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3696714A (en) * | 1969-11-11 | 1972-10-10 | Pier Luigi Panigati | Fluid-operated cylinder |
| CN201401386Y (en) * | 2009-02-24 | 2010-02-10 | 肇庆市志成气动有限公司 | Parallel-connection type gas-liquid booster cylinder |
| CN202251163U (en) * | 2011-09-16 | 2012-05-30 | 重庆扬照机电设备有限公司 | Gas and liquid transformation pressurizing cylinder |
| CN202224990U (en) * | 2011-10-18 | 2012-05-23 | 孙飚 | Novel blowing type air-hydraulic knife-forging cylinder |
| CN207795729U (en) * | 2017-12-27 | 2018-08-31 | 宣城铁凝机械有限公司 | A kind of knife striking cylinder of high sealed |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180330 |
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| WW01 | Invention patent application withdrawn after publication |