CN106481614B - gas-liquid damping cylinder - Google Patents
gas-liquid damping cylinder Download PDFInfo
- Publication number
- CN106481614B CN106481614B CN201610952841.1A CN201610952841A CN106481614B CN 106481614 B CN106481614 B CN 106481614B CN 201610952841 A CN201610952841 A CN 201610952841A CN 106481614 B CN106481614 B CN 106481614B
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- CN
- China
- Prior art keywords
- piston
- gas
- cylinder
- tracheae
- piston rod
- 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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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
-
- 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
- F15B15/1428—Cylinders
-
- 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
- F15B15/1457—Piston rods
-
- 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
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
-
- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of gas-liquid damping cylinder, including cylinder barrel, slided successively in cylinder barrel and be provided with upper piston, spacing block and lower piston, inner cavity of cylinder is set to be separated into air cavity, upper oil cavitie, lower oil cavitie and lower air chamber, the passage of some connection upper oil cavities and lower oil cavitie is provided with spacing block, the piston rod that upper end is stretched out outside cylinder barrel is provided with cylinder barrel, the upper piston, lower piston difference is fixedly sleeved on the piston rod, piston rod is slidably connected with spacing block, a connection lower air chamber and extraneous lower gas port are provided with piston rod, the outside of piston rod is socketed with the upper air cavity of a connection and extraneous tracheae.The cylinder barrel of gas-liquid damping cylinder of the present invention is structure as a whole or only connected by spacing block, therefore external structure is simple, is readily cleaned；The air inlet of the tracheae of air cavity is respectively positioned on same one end of gas-liquid damping cylinder with the upper gas port for the gas circuit for connecting lower air chamber in connection so that gas-liquid damping cylinder it is easier for installation.
Description
Technical field
The invention belongs to general hydraulic technique and pneumatic technical field, and in particular to a kind of gas-liquid damping cylinder.
Background technology
The GMP workshops of pharmaceutical factory, the requirement to the cleanliness factor of equipment are higher, it is desirable to which the relevant part of equipment, health is without dead
Angle, it is readily cleaned.
And for automatic scraper centrifuge, the doctor blade device that is driven at present using Innerscoping cylinder, outside it
The oil pipe of access is more, using with maintenance process, can not ensure that hydraulic oil does not leak, so being difficult to reach this standard.
If using built-in cylinder come the doctor blade device that drives, although can reach clean easy cleaned requirement, gas
The speed of cylinder piston rod stretching speed is difficult to control, and centrifuge failure is easily caused, also along with uncertain factor in safety.
In the market has a kind of gas-liquid damping cylinder, and the piston rod stretching speed of this gas-liquid damping cylinder acts in hydraulic damping
Under, become stable, make it easy to control, but gas-liquid damping cylinder in the market, it is made up of the cylinder barrel of two series connection, and air inlet
Mouth and gas outlet are separately positioned on the both ends that two cylinder barrels are relatively distant from, and two cylinder barrels are by outside addend root pull bar
Mode is fixed, and such external structure is complicated, causes not easy cleaning, it is difficult to be built in the inside for scraping girff.
The content of the invention
The technical problems to be solved by the invention are：It is simple, piston rod stretching speed stabilization to provide a kind of external structure
Gas-liquid damping cylinder.
In order to solve the above technical problems, the technical solution adopted by the present invention is：Gas-liquid damping cylinder, including tubulose cylinder barrel, cylinder
The upper end of cylinder is provided with cylinder plug, and lower end is sealedly connected with bottom, it is characterised in that slides and sets successively from up to down in the cylinder barrel
Upper piston and lower piston are equipped with, the spacing block being fixedly connected in cylinder barrel, the upper work are provided between upper piston and lower piston
Inner cavity of cylinder is separated into the cavity of four sealings by plug, spacing block and lower piston, and four cavitys are respectively upper gas from up to down
Chamber, upper oil cavitie, lower oil cavitie and lower air chamber, the passages of some connection upper oil cavities and lower oil cavitie, institute are provided with the spacing block
The piston rod for being provided with cylinder barrel and sequentially passing through cylinder plug, upper piston, spacing block and lower piston is stated, cylinder barrel is stretched out in the piston rod upper end
Outside, the upper piston, lower piston difference it is fixedly sleeved piston rod is slidably connected with spacing block on the piston rod, set in piston rod
A gas circuit is equipped with, the gas circuit forms in piston-rod lower end and connects the lower gas port of lower air chamber, forms gas on the top of piston rod
Mouthful, the outside of the piston rod is socketed with one and connects upper air cavity and extraneous tracheae, and the tracheae inserts upper air cavity through cylinder plug
Interior, upper end and the piston rod outer wall of tracheae are tightly connected, and tracheae outer wall is sealed slidingly against with cylinder plug and is connected, the tracheae upper end
Offer air inlet.
As a kind of preferable scheme, the number of channels on the spacing block is two, is respectively arranged with every passage
One-way throttle valve, the setting direction of two one-way throttle valves are opposite.
As a kind of preferable scheme, the cylinder barrel includes the upper shell and lower shell being coaxially disposed, the lower end of upper shell
It is tightly connected with the top half of spacing block, the upper end of lower shell and the latter half of spacing block are tightly connected.
As a kind of preferable scheme, the groove that diameter is more than tracheae external diameter is provided with the cylinder plug lower surface, this is recessed
Groove is coaxially disposed with tracheae, makes to form gap around tracheae between cylinder plug, and the lower end and upper piston upper surface of the tracheae are close
Envelope is fixedly connected, and gas outlet is provided with tracheae lower sides, the depth for being smaller than groove of the gas outlet and upper piston.
As a kind of preferable scheme, two nuts are threaded with the outer wall of the tracheae upper end.
As a kind of preferable scheme, the piston-rod lower end flushes with lower piston lower surface.
The beneficial effects of the invention are as follows：The cylinder barrel of gas-liquid damping cylinder of the present invention is structure as a whole or only by dividing
Spacer block connects, therefore external structure is simple；Upper oil cavitie is connected with lower oil cavitie by passage, and unidirectional fuel-economizing is set in passage
Valve, ensure that piston rod stretching speed is stable；The upper gas port of the air inlet of the tracheae of air cavity and the gas circuit that connects lower air chamber in connection
Same one end of gas-liquid damping cylinder is respectively positioned on, more causes the easier for installation of gas-liquid damping cylinder.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In Fig. 1：1st, cylinder barrel, 1-1, upper shell, 1-2, lower shell, 2, cylinder plug, 3, bottom, 4, upper piston, 5, lower piston, 6,
Spacing block, 7, upper air cavity, 8, upper oil cavitie, 9, lower oil cavitie, 10, lower air chamber, 11, passage, 12, piston rod, 13, gas circuit, 14, lower gas
Mouthful, 15, upper gas port, 16, tracheae, 17, air inlet, 18, one-way throttle valve, 19, groove, 20, gas outlet, 21, nut, 22, sliding
Set.
Embodiment
Below in conjunction with the accompanying drawings, specific embodiments of the present invention are described in detail.
Gas-liquid damping cylinder as shown in Figure 1, including tubulose cylinder barrel 1, the cylinder barrel is by the upper shell 1-1 being coaxially disposed and lower cylinder
Body 1-2 is formed, and spacing block 6 is sealedly connected between upper shell 1-1 and lower shell 1-2, upper shell 1-1 upper end is provided with cylinder plug
2, lower shell 1-2 lower end are sealedly connected with bottom 3, are slided in upper shell 1-1 and are provided with upper piston 4, slided in lower shell 1-2
Lower piston 5 is provided with, closed upper air cavity 7, shape between upper piston 4 and spacing block 6 are formed between the upper piston 4 and cylinder plug 2
Into closed upper oil cavitie 8, closed lower oil cavitie 9 is formed between spacing block 6 and lower piston 5, is formed between lower piston 5 and bottom 3
Closed lower air chamber 10, the passages 11 of two connection upper oil cavities 8 and lower oil cavitie 9 are provided with the spacing block 6, for hydraulic oil
Flowed between upper oil cavitie 8 and lower oil cavitie 9, passage 11 reduces the flowing velocity of hydraulic oil, becomes the lifting speed of piston rod 12
It is steady.
The piston rod 12 for sequentially passing through cylinder plug 2, upper piston 4, spacing block 6 and lower piston 5, the work are additionally provided with cylinder barrel 1
The upper end of stopper rod 12 is stretched out outside cylinder barrel 1, and the upper piston 4, lower piston 5 are fixedly connected with piston rod 12 respectively, and piston rod 12 is with dividing
Spacer block 6 is slidably connected, and a gas circuit 13 is provided with piston rod 12, and the gas circuit 13 forms connection lower air chamber in the lower end of piston rod 12
10 lower gas port 14, on the top of piston rod 12 form gas port 15, with connect lower air chamber 10 with it is extraneous；The piston rod 12
Outside is socketed with the upper air cavity 7 of a connection and extraneous tracheae 16, and the tracheae 16 is passed through in the upper air cavity 7 of the insertion of cylinder plug 2, tracheae 16
Gap is left between piston rod 12 to be tightly connected with the outer wall of piston rod 12 and in tracheae 16 with ventilating air, the upper end of tracheae 16
Air inlet 17 is provided with side wall, the outer wall of tracheae 16 is sealed slidingly against with cylinder plug 2 by sliding sleeve 22 and is connected 7, and sliding sleeve 22 is fixed
It is arranged in cylinder plug 2.
When cylinder barrel 1 is relatively large in diameter, integral type is may be selected in cylinder barrel 1, and spacing block is directly welded inside cylinder barrel 1, to carry
The globality of high gas-liquid damping cylinder cylinder barrel outer wall, improve sealing effectiveness.
In actual design and production, spacing block is double polarizing keys structure small in ends broad in the middle, both ends boss respectively with it is upper
Cylinder 1-1 connects with lower shell 1-2 inner wall sealing, the diameter phase of the diameter and upper shell 1-1 or lower shell 1-2 of center section
Together, in favor of cleaning, the knuckle of reduction gas-liquid damping cylinder outer surface, in favor of cleaning.
On above-mentioned spacing block 6, one-way throttle valve 18, the setting of two one-way throttle valves 18 are respectively arranged with two passes 11
In the opposite direction, one-way throttle valve 18 is used for the flow velocity for adjusting hydraulic oil, piston rod 12 is lifted with steady.
The groove 19 that diameter is more than the external diameter of tracheae 16 is provided with the lower surface of cylinder plug 2, the groove 19 and tracheae 16 are same
Axle is set, and makes to form gap between tracheae 16 and cylinder plug 2, lower end and the fixed company of the upper surface of upper piston 4 sealing of the tracheae 16
Connect, gas outlet 21 is provided with the lower sides of tracheae 16, the gas outlet 21 and the depth for being smaller than groove 19 of upper piston 4,
When moved on upper piston 4 be affixed with the bottom surface of cylinder plug 2 when, gas outlet 21 is located in gap, prevents gas outlet 21 to be blocked.
Two nuts 21, the fixation for piston rod 12 are threaded with the upper end outer wall of tracheae 16.
The lower end of piston rod 12 flushes with the lower surface of lower piston 5, prevents bottom 3 from being damaged because of the impact of the lower end of piston rod 12
Evil.
The present invention operation principle be：Because air inlet pipeline is arranged on piston rod 12 and tracheae 16, therefore using
When, the upper end of tracheae 16 is fixed on other supports, when the upper air inlet of gas port 15, gases at high pressure enter lower air chamber 10, lower air chamber 10
Expansion, cylinder barrel 1 is promoted to move down, the hydraulic oil in lower oil cavitie 9 enters passage 11, applies pressure to one-way throttle valve 18, by
It is oppositely arranged in two one-way throttle valves 18, therefore, have one-way throttle valve 18 in a passage 11 promoted by hydraulic oil and
Open, enable hydraulic oil from the passage 11 flow into upper oil cavitie 8, and upper air cavity 7 reduce while, internal gas passes through air inlet
Mouth 17 is discharged；
Similarly, when 17 air inlet of air inlet, above-mentioned action is opposite.
Because upper gas port and air inlet are in same one end of gas-liquid damping cylinder, and gas-liquid damping cylinder outer surface structure is simple,
Therefore, cleaning get up it is very convenient, but also drastically increase the gas-liquid damping cylinder with centrifugal machine scraper device just
Victory.
Claims (6)
1. gas-liquid damping cylinder, including tubulose cylinder barrel (1), the upper end of cylinder barrel (1) is provided with cylinder plug (2), and lower end is sealedly connected with bottom
Cover (3), it is characterised in that slided successively from up to down in the cylinder barrel (1) and be provided with upper piston (4) and lower piston (5), upper work
The spacing block (6) being fixedly connected in cylinder barrel (1), the upper piston (4), spacing block are provided between plug (4) and lower piston (5)
(6) and cylinder barrel (1) inner chamber is separated into the cavity of four sealings by lower piston (5), and four cavitys are respectively upper gas from up to down
Chamber (7), upper oil cavitie (8), lower oil cavitie (9) and lower air chamber (10), some connection upper oil cavities are provided with the spacing block (6)
(8) and lower oil cavitie (9) passage (11), be provided with the cylinder barrel (1) and sequentially pass through cylinder plug (2), upper piston (4), spacing block
(6) and lower piston (5) piston rod (12), piston rod (12) upper end stretch out cylinder barrel (1) outside, the upper piston (4), lower piston
(5) fixedly sleeved on piston rod (12) respectively, piston rod (12) is slidably connected with spacing block (6), is set in piston rod (12)
There is a gas circuit (13), the gas circuit (13) forms the lower gas port (14) of connection lower air chamber (10) in piston rod (12) lower end, in work
The top of stopper rod (12) forms gas port (15), the outside of the piston rod (12) be socketed with the upper air cavity (7) of a connection with it is outer
The tracheae (16) on boundary, the tracheae (16) is interior through air cavity (7) in cylinder plug (2) insertion, upper end and the piston rod (12) of tracheae (16)
Outer wall is tightly connected, and tracheae (16) outer wall is sealed slidingly against with cylinder plug (2) and is connected, and tracheae (16) upper end offers air inlet
Mouth (17).
2. gas-liquid damping cylinder according to claim 1, it is characterised in that passage (11) quantity on the spacing block (6)
For two, every passage (11) is interior to be respectively arranged with one-way throttle valve (18), and the setting direction of two one-way throttle valves (18) is opposite.
3. gas-liquid damping cylinder according to claim 1, it is characterised in that the cylinder barrel (1) includes the upper cylinder being coaxially disposed
Body (1-1) and lower shell (1-2), the lower end of upper shell (1-1) are tightly connected with the top half of spacing block (6), lower shell (1-
2) upper end and the latter half of spacing block (6) are tightly connected.
4. gas-liquid damping cylinder according to claim 1, it is characterised in that be provided with diameter on cylinder plug (2) lower surface
More than the groove (19) of tracheae (16) external diameter, the groove (19) is coaxially disposed with tracheae (16), make tracheae (16) and cylinder plug (2) it
Between form gap, lower end and upper piston (4) upper surface of the tracheae (16) are sealedly and fixedly connected, on tracheae (16) lower sides
Gas outlet (20) is provided with, the gas outlet (20) and the depth for being smaller than groove (19) of upper piston (4).
5. gas-liquid damping cylinder according to claim 1, it is characterised in that be threadedly coupled on the outer wall of tracheae (16) upper end
There are two nuts (21).
6. according to any described gas-liquid damping cylinder of Claims 1 to 5, it is characterised in that piston rod (12) lower end is with
Piston (5) lower surface flushes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610952841.1A CN106481614B (en) | 2016-11-03 | 2016-11-03 | gas-liquid damping cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610952841.1A CN106481614B (en) | 2016-11-03 | 2016-11-03 | gas-liquid damping cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106481614A CN106481614A (en) | 2017-03-08 |
| CN106481614B true CN106481614B (en) | 2018-01-02 |
Family
ID=58272907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610952841.1A Active CN106481614B (en) | 2016-11-03 | 2016-11-03 | gas-liquid damping cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106481614B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331797B (en) * | 2018-03-28 | 2023-12-08 | 江苏徐工工程机械研究院有限公司 | Oil cylinder for feeding device of sand throwing fire extinguishing vehicle |
| CN112727978B (en) * | 2021-01-22 | 2023-01-06 | 保定市东利机械制造股份有限公司 | Damping self-adaptation automobile shock absorber ware |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10139938A1 (en) * | 2001-08-14 | 2003-02-27 | Roemheld A Gmbh & Co Kg | Block cylinder with piston speed damping |
| CN201396335Y (en) * | 2009-06-04 | 2010-02-03 | 上海申光高强度螺栓有限公司 | Gas-liquid damping cylinder |
| CN202468528U (en) * | 2012-03-01 | 2012-10-03 | 阜新伟光液压气动有限公司 | Multifunctional composite cylinder |
| CN203098457U (en) * | 2013-02-01 | 2013-07-31 | 上海尊优自动化设备有限公司 | Gas-liquid pressure cylinder |
| CN203702721U (en) * | 2013-12-10 | 2014-07-09 | 北京理工大学 | Mould moving and mould locking integrated closing oil cylinder structure |
| CN204113801U (en) * | 2014-09-28 | 2015-01-21 | 北京建筑大学 | A kind of damping device |
| CN206144902U (en) * | 2016-11-03 | 2017-05-03 | 苏州盛天力离心机制造有限公司 | Gas -liquid damping jar |
-
2016
- 2016-11-03 CN CN201610952841.1A patent/CN106481614B/en active Active
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| Publication number | Publication date |
|---|---|
| CN106481614A (en) | 2017-03-08 |
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