CN108457931A - A kind of piston rod oil inlet oil extraction oil cylinder - Google Patents
A kind of piston rod oil inlet oil extraction oil cylinder Download PDFInfo
- Publication number
- CN108457931A CN108457931A CN201810412420.9A CN201810412420A CN108457931A CN 108457931 A CN108457931 A CN 108457931A CN 201810412420 A CN201810412420 A CN 201810412420A CN 108457931 A CN108457931 A CN 108457931A
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- Prior art keywords
- fluid port
- hydraulic fluid
- oil
- piston
- rod
- Prior art date
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- 238000000605 extraction Methods 0.000 title claims abstract description 26
- 239000012530 fluid Substances 0.000 claims description 123
- 239000003921 oil Substances 0.000 claims description 77
- 239000010720 hydraulic oil Substances 0.000 claims description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 238000007789 sealing Methods 0.000 claims description 14
- 239000007787 solid Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 abstract description 2
- 208000002925 dental caries Diseases 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 4
- 239000010773 plant oil Substances 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Classifications
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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
- F15B15/1461—Piston rod 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
- 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
-
- 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
- F15B15/1452—Piston sealings
Abstract
The present invention relates to a kind of piston rod oil inlet oil extraction oil cylinders, piston rod is using the piston body of rod and the integrally welded structure of piston rod head, piston rod inner space is divided into two cavitys by diversion pipe and seal combination, it is connected to respectively with rod chamber and rodless cavity, it thus is avoided that the processing inconvenience in processing elongated hole in the solid body of rod, it also allows for dismantling diversion pipe 3 and piston body 7, carries out Inspection and maintenance.
Description
Technical field
The present invention relates to oil cylinder technical fields, and in particular to a kind of piston rod oil inlet oil extraction oil cylinder.
Background technology
Currently, two hydraulic fluid ports of oil cylinder are generally all individually positioned in cylinder tube both ends, rod chamber and rodless cavity with oil cylinder
It is respectively communicated with.But in the case that the installation oil cylinder especially oil cylinder angle amplitude of oscillation increases in some small spaces, this oil cylinder
Piping connection is more dispersed, is distributed and is restricted in small space, is also unfavorable for the installation and repair of pipeline, and over long distances
Piping connection be unfavorable for oil cylinder and moved under various operating modes.In previous structure, using processing two on the solid body of rod
Elongated hole is connected to rod chamber and rodless cavity, but elongated hole work in-process straightness is difficult to ensure so that elongated hole and hydraulic fluid port
Position relationship be not easy to ensure, cause difficulty of processing bigger, it is costly.
Invention content
Present invention solves the technical problem that being：In order to overcome existing oil cylinder under small space or long range motion state
The shortcomings that, that the purpose of the present invention is to provide a kind of processing is simple, easy to maintenance, can install and can meet more in small space
The piston rod oil inlet of kind operating mode movement, the oil cylinder of oil extraction.
The technical scheme is that：A kind of piston rod oil inlet oil extraction oil cylinder, including guide sleeve 5, cylinder barrel 6, cylinder bottom 8, lead
Flow tube 3 and piston component；The guide sleeve 5 and cylinder barrel 6 are the cavity body of both ends open, and cylinder bottom 8 is one end seal of one end open
The cavity body closed, and guide sleeve 5, cylinder barrel 6 and 8 open end of cylinder bottom are sequentially connected；The piston component includes piston rod head 2, lives
Stopper rod body 4 and piston body 7；7 axis of piston body is provided with through-hole, is located in 6 cavity of cylinder barrel close to one end of cylinder bottom 8, and piston body 7
Outer wall and 6 inner wall clearance fit of cylinder barrel；Piston rod head 2 is located at outside cylinder barrel 6, is equipped with through-hole in the axial direction；4 one end of the piston body of rod
It is connected with piston body 7, the other end is threadedly coupled across 6 inner cavity body of cylinder barrel with piston rod head 2；Piston rod head 2, the piston body of rod 4
After being connected with each other with piston body 7, axis overlaps and forms a through-hole at axis, and diversion pipe 3 is placed in the through-hole, and water conservancy diversion
3 outer diameter of pipe is less than the through-hole internal diameter；Diversion pipe 3 is mutually passed through close to one end of cylinder bottom 8 for the cavity body in openning shape and cylinder bottom 8
It is logical；Piston rod head 2 is equipped with hydraulic fluid port A and hydraulic fluid port B, and hydraulic fluid port A is penetrated through by pipeline and rodless cavity water conservancy diversion cavity F, and hydraulic fluid port B passes through
Pipeline and the G perforations of rod chamber water conservancy diversion cavity；Cylinder barrel 6 is equipped with hydraulic fluid port C, passes through pipeline and rod chamber H perforations；It is set on piston body 7
There is oil-through hole E, is penetrated through respectively with rod chamber H and rod chamber water conservancy diversion cavity G by its both ends of pipeline；Cylinder bottom 8 is equipped with hydraulic fluid port D,
Pass through pipeline and rodless cavity J perforations.
The present invention further technical solution be：The hydraulic fluid port A and hydraulic fluid port B blocks hydraulic fluid port C and hydraulic fluid port D when opening；Liquid
Pressure oil into fashionable, enters rodless cavity J by hydraulic fluid port A after rodless cavity water conservancy diversion cavity F, pushes piston body 7 to the side far from cylinder bottom 8
To axial movement, to drive entire piston component to be axially moved；Original hydraulic oil is made in piston component thrust in rod chamber H
Under, rod chamber water conservancy diversion cavity G is entered by oil-through hole E, then be discharged by hydraulic fluid port B；Hydraulic oil by hydraulic fluid port B into fashionable, warp
After rod chamber water conservancy diversion cavity G, then rod chamber H entered by oil-through hole E, piston body 7 is pushed axially to be transported to close to the direction of cylinder bottom 8
It is dynamic, to drive entire piston component to be axially moved；Original hydraulic oil in rodless cavity J enters rodless cavity water conservancy diversion cavity F, then leads to
Cross hydraulic fluid port A discharges.
The present invention further technical solution be：When the hydraulic fluid port C and hydraulic fluid port D are opened, hydraulic fluid port A and hydraulic fluid port B is blocked；Hydraulic pressure
When oil enters rod chamber H by hydraulic fluid port C, piston body 7 is pushed to be axially moved to close to the direction of cylinder bottom 8, it is entire living to drive
Plug assembly is axially moved, and original hydraulic oil in rodless cavity J carries out oil extraction by hydraulic fluid port D；Hydraulic oil enters no bar by hydraulic fluid port D
When chamber J, piston body 7 is pushed to be axially moved to the direction far from cylinder bottom 8, to drive entire piston component to be axially moved；There is bar
Original hydraulic oil in chamber H carries out oil extraction by hydraulic fluid port C.
The present invention further technical solution be：When the hydraulic fluid port B and hydraulic fluid port D are opened, hydraulic fluid port A and hydraulic fluid port C is blocked；Hydraulic pressure
Oil into fashionable, enters rod chamber H by hydraulic fluid port B after rod chamber water conservancy diversion cavity G, then by oil-through hole E, push piston body 7 to
It is axially moved close to the direction of cylinder bottom 8, to which the original hydraulic oil for driving entire piston component to be axially moved in rodless cavity J passes through
Hydraulic fluid port D carries out oil extraction；When hydraulic oil enters rodless cavity J by hydraulic fluid port D, piston body 7 is pushed axially to be transported to the direction far from cylinder bottom 8
It is dynamic, to drive entire piston component to be axially moved；Original hydraulic oil leads under piston component thrust in rod chamber H
It crosses oil-through hole E and enters rod chamber water conservancy diversion cavity G, then be discharged by hydraulic fluid port B.
The present invention further technical solution be：When the hydraulic fluid port A and hydraulic fluid port C are opened, hydraulic fluid port B and hydraulic fluid port D is blocked；Hydraulic pressure
Oil into fashionable, enters rodless cavity J by hydraulic fluid port A after rodless cavity water conservancy diversion cavity F, pushes piston body 7 to the direction far from cylinder bottom 8
It is axially moved, to drive entire piston component to be axially moved, original hydraulic oil in rod chamber H is discharged by hydraulic fluid port C；
When hydraulic oil enters rod chamber H by hydraulic fluid port C, piston body 7 is pushed to be axially moved to close to the direction of cylinder bottom 8, it is whole to drive
A piston component is axially moved, and original hydraulic oil in rodless cavity J enters rodless cavity water conservancy diversion cavity F, then is arranged by hydraulic fluid port A
Go out.
The present invention further technical solution be：It further include plug 1；The plug 1 uses standard seal rubber cushion, is located at and lives
1 one end of stopper rod head, is convenient for changing the sealing structure of 3 front end of diversion pipe.
The present invention further technical solution be：It is tied between 4 outer wall of the piston body of rod and 5 inner wall of guide sleeve by sealing
Structure is sealed.
The present invention further technical solution be：It is sealed by sealing structure between the piston body 7 and cylinder barrel 6.
Invention effect reduces the difficulty of processing of the oil cylinder parts after applying the present invention, reduces processing cost, improves
Machine adds efficiency；And in actual use, so that hydralic hose is distributed according to on-site actual situations, reduce liquid
The installation difficulty of moulding pipe reduces the difficulty of processing with the matching used mechanical equipment of oil cylinder.
Description of the drawings
Fig. 1 is the front view of inventive piston bar oil inlet oil extraction oil cylinder.
In Fig. 1,1- plugs；2- piston rod heads；3- diversion pipes；The 4- piston bodies of rod；5- guide sleeves；6- cylinder barrels；7- piston bodies；
8- cylinder bottoms；9- sealing structures
Specific implementation mode
Referring to Fig. 1, inventive piston bar oil inlet oil extraction oil cylinder, including guide sleeve 5, cylinder barrel 6, cylinder bottom 8, diversion pipe 3 and work
Plug assembly.Guide sleeve 5 and cylinder barrel are the cavity body of both ends open, and cylinder bottom 8 is the closed cavity body in one end open one end, and is led
It is sequentially connected to set 5, cylinder barrel 6 and 8 open end of cylinder bottom.Piston component includes piston rod and piston body 7, and piston rod is by piston rod head
2,4 integrally welded structure of the piston body of rod, piston body 7 are provided with through-hole along axis, are located in 6 cavity of cylinder barrel close to the one of cylinder bottom 8
End, and 7 outer wall of piston body and 6 inner wall clearance fit of cylinder barrel；The piston body of rod 4 uses hollow tube pattern, one end solid with piston body 7
Even, the other end is threadedly coupled across 6 inner cavity body of cylinder barrel with piston rod head 2；Piston rod head 2 is located at outside cylinder barrel 6, in the axial direction
Equipped with through-hole, plug 1 is installed on the through-hole far from 4 one end of the piston body of rod, sealing structure is used in combination to be sealed；Piston rod head 2,
After the piston body of rod 4 and piston body 7 are connected with each other, axis overlaps and forms a cavity at axis, and diversion pipe 3 is placed in piston group
In the cavity of part, one end is connect by screw thread with piston rod head 2, and the diversion pipe other end coordinates with piston body 7, passes through sealing structure
9 are sealed；3 outer diameter of diversion pipe is less than piston component cavity internal diameter, and diversion pipe 3 is openning shape and cylinder close to one end of cylinder bottom 8
Cavity body in bottom 8 is mutually communicated；Diversion pipe 3 makes to form two chambers inside piston rod body：Definition 3 inner cavity body of diversion pipe is nothing
Rod cavity water conservancy diversion cavity F, existing cavity is rod chamber water conservancy diversion cavity G between 4 cavity inner wall of 3 outer wall of diversion pipe and the piston body of rod.
The dynamic cavity for defining in cylinder barrel 6, outside the piston body of rod 4, and being formed with guide sleeve 5 and piston body 7 is rod chamber H, the cavity
It is connected to rod chamber water conservancy diversion cavity G by the oil-through hole E on piston body 7；It defines in cylinder barrel 6, cylinder bottom 8 and piston body 7 are formed
Dynamic cavity be rodless cavity J, which penetrates through with rodless cavity water conservancy diversion cavity F.
Piston rod head 2 is equipped with hydraulic fluid port A and hydraulic fluid port B, and hydraulic fluid port A is penetrated through by pipeline and rodless cavity water conservancy diversion cavity F, hydraulic fluid port
B passes through pipeline and the G perforations of rod chamber water conservancy diversion cavity；Cylinder barrel 6 is equipped with hydraulic fluid port C, passes through pipeline and rod chamber H perforations；Piston body 7
It is equipped with oil-through hole E, is penetrated through respectively with rod chamber H and rod chamber water conservancy diversion cavity G by its both ends of pipeline；Cylinder bottom 8 is equipped with oil
Mouth D passes through pipeline and rodless cavity J perforations.
The sealing of O-ring or other forms can be used in sealing structure in the present invention, and common lip can be used in piston rod
It seals the either sealing of other forms and the sealing of co-axial seal or other forms is used using guidance tape support piston and is adopted
It is supported with guidance tape, above-mentioned sealing element is economical and practical, cost-effective, is easy to purchase.
It in the present invention, is respectively communicated with by rod chamber and rodless cavity, this avoid the solid bodies of rod when processing elongated hole
Inconvenience, also allow for dismantling diversion pipe 3 and piston body 7, Inspection and maintenance；Diversion pipe 3 and the cooperation of piston body 7 do not have
Have and use bond pattern, makes diversion pipe one end that can be moved freely in the state of stress in this way, avoid and expand with heat and contract with cold to leading
The influence of flow tube 3 and piston rod；For diversion pipe 3 with piston rod head 2 using being threadedly coupled, the piston body of rod 4 uses screw thread with piston body 7
Connection, the structure can be dismantled, the drawbacks of being not easy to determine where failure when avoiding oil cylinder repair；3 nose threads of diversion pipe are close
When envelope damage, it can be replaced by dismantling the plug 1 of piston rod head 2, substantially increase servicing ease；On piston body 7
It is provided with oil-through hole, under the premise of ensureing effective travel, 6 overall dimensions of oil cylinder is shortened, saves installation space.
Inventive piston bar oil inlet oil extraction oil cylinder, there are four hydraulic fluid ports for setting, and hydraulic fluid port A and hydraulic fluid port B are distributed in piston rod head 2
On, hydraulic fluid port C is arranged in 6 front end side wall of cylinder barrel, and hydraulic fluid port D is arranged on cylinder barrel cylinder bottom 8.Hydraulic fluid port A passes through rodless cavity water conservancy diversion cavity F
It is connected to rodless cavity J, rodless cavity J is connected with hydraulic fluid port D；Hydraulic fluid port A is identical as hydraulic fluid port D effects, and only distributing position is different；Hydraulic fluid port B
It is connected to rod chamber H by rod chamber water conservancy diversion cavity G, oil-through hole E, rod chamber H is connected with hydraulic fluid port C；Hydraulic fluid port B is acted on hydraulic fluid port C
Identical, only distributing position is different.
When work, hydraulic fluid port A is connected into pumping plant oil circuit with hydraulic fluid port B, hydraulic fluid port C and hydraulic fluid port D are blocked.When hydraulic oil passes through
Hydraulic fluid port A enters back into rodless cavity J into rodless cavity water conservancy diversion cavity F, to push piston body 7 to drive the components such as piston rod, overcomes
Resistance, to far from cylinder bottom direction along axial-movement, at this point, in rod chamber H original hydraulic oil pass through it is excessively oily on piston body 7
Hole E is discharged into rod chamber water conservancy diversion cavity G after hydraulic fluid port B；When hydraulic oil is by hydraulic fluid port B, into rod chamber water conservancy diversion cavity G,
When entering rod chamber H by the oil-through hole E on piston again, to push piston body 7 to drive the components such as the piston body of rod 4, resistance is overcome
Power, to, along axial-movement, the hydraulic oil in rodless cavity J enters rodless cavity water conservancy diversion cavity F at this time, then passes through close to the direction of cylinder bottom
Hydraulic fluid port A discharges.The above motion process repeatedly is realized through piston rod oil inlet oil extraction, reaches purpose of design.
At work, hydraulic fluid port C is connected into pumping plant oil circuit with hydraulic fluid port D, when hydraulic fluid port A and hydraulic fluid port B are blocked, oil cylinder of the present invention can
To be used as common oil cylinder.When hydraulic oil enters rod chamber H by hydraulic fluid port C, push piston body 7 to close to the side of cylinder bottom 8
To axial movement, to drive entire piston component to be axially moved, original hydraulic oil in rodless cavity J is arranged by hydraulic fluid port D
Oil；When hydraulic oil enters rodless cavity J by hydraulic fluid port D, piston body 7 is pushed to be axially moved to the direction far from cylinder bottom 8, to band
Dynamic entire piston component is axially moved；Original hydraulic oil in rod chamber H carries out oil extraction by hydraulic fluid port C.
At work, when hydraulic fluid port B to be connected to connection pumping plant oil circuit with hydraulic fluid port D, hydraulic fluid port A and hydraulic fluid port C are blocked：Hydraulic oil is logical
Hydraulic fluid port B is crossed into fashionable, enters rod chamber H after rod chamber water conservancy diversion cavity G, then by oil-through hole E, pushes piston body 7 to close
The direction of cylinder bottom 8 is axially moved, to which the original hydraulic oil for driving entire piston component to be axially moved in rodless cavity J passes through hydraulic fluid port
D carries out oil extraction；When hydraulic oil enters rodless cavity J by hydraulic fluid port D, piston body 7 is pushed to be axially moved to the direction far from cylinder bottom 8,
To drive entire piston component to be axially moved；Original hydraulic oil passed through under piston component thrust in rod chamber H
Oilhole E enters rod chamber water conservancy diversion cavity G, then is discharged by hydraulic fluid port B.
Hydraulic fluid port A can also be connected pumping plant oil circuit with hydraulic fluid port C, hydraulic fluid port B and hydraulic fluid port D closure are used.Thus may be used
To meet the requirement under different operating modes, the use scope of oil cylinder of the present invention is increased.
Claims (8)
1. a kind of piston rod oil inlet oil extraction oil cylinder, which is characterized in that including guide sleeve (5), cylinder barrel (6), cylinder bottom (8), diversion pipe
(3) and piston component；The guide sleeve (5) and cylinder barrel (6) are the cavity body of both ends open, and cylinder bottom (8) is one end open one
Closed cavity body is held, and guide sleeve (5), cylinder barrel (6) and cylinder bottom (8) open end are sequentially connected；The piston component includes living
Stopper rod head (2), the piston body of rod (4) and piston body (7)；Piston body (7) axis is provided with through-hole, is located at close in cylinder barrel (6) cavity
One end of cylinder bottom (8), and piston body (7) outer wall and cylinder barrel (6) inner wall clearance fit；Piston rod head (2) is located at cylinder barrel (6) outside,
It is equipped with through-hole in the axial direction；The piston body of rod (4) one end and piston body (7) are connected, the other end pass through cylinder barrel (6) inner cavity body with
Piston rod head (2) is threadedly coupled；After piston rod head (2), the piston body of rod (4) and piston body (7) are connected with each other, axis overlaps
And a through-hole is formed at axis, diversion pipe (3) is placed in the through-hole, and diversion pipe (3) outer diameter is less than the through-hole internal diameter；Diversion pipe
(3) it is mutually communicated for the cavity body in openning shape and cylinder bottom (8) close to one end of cylinder bottom (8)；Piston rod head (2) is equipped with oil
Mouth A and hydraulic fluid port B, and hydraulic fluid port A is penetrated through by pipeline and rodless cavity water conservancy diversion cavity F, hydraulic fluid port B passes through pipeline and rod chamber water conservancy diversion cavity
G is penetrated through；Cylinder barrel (6) is equipped with hydraulic fluid port C, passes through pipeline and rod chamber H perforations；Piston body (7) is equipped with oil-through hole E, passes through pipe
Its both ends of road are penetrated through with rod chamber H and rod chamber water conservancy diversion cavity G respectively；Cylinder bottom (8) is equipped with hydraulic fluid port D, by pipeline and without bar
Chamber J perforations.
2. a kind of piston rod oil inlet oil extraction oil cylinder as described in claim 1, which is characterized in that the hydraulic fluid port A and hydraulic fluid port B are being beaten
When opening, hydraulic fluid port C and hydraulic fluid port D is blocked；Hydraulic oil into fashionable, rodless cavity J is entered after rodless cavity water conservancy diversion cavity F, is pushed away by hydraulic fluid port A
Piston body (7) is axially moved to the direction far from cylinder bottom (8), to drive entire piston component to be axially moved；In rod chamber H
Original hydraulic oil enters rod chamber water conservancy diversion cavity G under piston component thrust, by oil-through hole E, then is arranged by hydraulic fluid port B
Go out；Hydraulic oil into fashionable, entered rod chamber H after rod chamber water conservancy diversion cavity G, then by oil-through hole E, pushes and live by hydraulic fluid port B
Cock body (7) is axially moved to close to the direction of cylinder bottom (8), to drive entire piston component to be axially moved；Original in rodless cavity J
There is hydraulic oil to enter rodless cavity water conservancy diversion cavity F, then is discharged by hydraulic fluid port A.
3. a kind of piston rod oil inlet oil extraction oil cylinder as described in claim 1, which is characterized in that the hydraulic fluid port C and hydraulic fluid port D are opened
When, block hydraulic fluid port A and hydraulic fluid port B；When hydraulic oil enters rod chamber H by hydraulic fluid port C, push piston body (7) to close to cylinder bottom (8)
Direction is axially moved, and to drive entire piston component to be axially moved, original hydraulic oil in rodless cavity J is carried out by hydraulic fluid port D
Oil extraction；When hydraulic oil enters rodless cavity J by hydraulic fluid port D, piston body (7) is pushed to be axially moved to the direction far from cylinder bottom (8), from
And entire piston component is driven to be axially moved；Original hydraulic oil in rod chamber H carries out oil extraction by hydraulic fluid port C.
4. a kind of piston rod oil inlet oil extraction oil cylinder as described in claim 1, which is characterized in that the hydraulic fluid port B and hydraulic fluid port D are opened
When, block hydraulic fluid port A and hydraulic fluid port C；Hydraulic oil by hydraulic fluid port B into fashionable, after rod chamber water conservancy diversion cavity G, then by oil-through hole E into
Enter rod chamber H, piston body (7) is pushed to be axially moved to close to the direction of cylinder bottom (8), to drive entire piston component axially to transport
Original hydraulic oil in dynamic rodless cavity J carries out oil extraction by hydraulic fluid port D；When hydraulic oil enters rodless cavity J by hydraulic fluid port D, pushes and live
Cock body (7) is axially moved to the direction far from cylinder bottom (8), to drive entire piston component to be axially moved；It is original in rod chamber H
Hydraulic oil under piston component thrust, rod chamber water conservancy diversion cavity G is entered by oil-through hole E, then be discharged by hydraulic fluid port B.
5. a kind of piston rod oil inlet oil extraction oil cylinder as described in claim 1, which is characterized in that the hydraulic fluid port A and hydraulic fluid port C are opened
When, block hydraulic fluid port B and hydraulic fluid port D；Hydraulic oil into fashionable, enters rodless cavity J by hydraulic fluid port A after rodless cavity water conservancy diversion cavity F, pushes
Piston body (7) is axially moved to the direction far from cylinder bottom (8), to drive entire piston component to be axially moved, in rod chamber H
Original hydraulic oil is discharged by hydraulic fluid port C；When hydraulic oil enters rod chamber H by hydraulic fluid port C, push piston body (7) to close
The direction of cylinder bottom (8) is axially moved, and to drive entire piston component to be axially moved, original hydraulic oil in rodless cavity J enters
Rodless cavity water conservancy diversion cavity F, then be discharged by hydraulic fluid port A.
6. a kind of piston rod oil inlet oil extraction oil cylinder as described in claim 1, which is characterized in that further include plug (1)；It is described stifled
Head (1) uses standard seal rubber cushion, is located at piston rod head (1) one end, is convenient for changing the sealing structure of diversion pipe (3) front end.
7. a kind of piston rod oil inlet oil extraction oil cylinder as described in claim 1, which is characterized in that the piston body of rod (4) outer wall
It is sealed by sealing structure between guide sleeve (5) inner wall.
8. a kind of piston rod oil inlet oil extraction oil cylinder as described in claim 1, which is characterized in that the piston body (7) and cylinder barrel
(6) it is sealed by sealing structure between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810412420.9A CN108457931A (en) | 2018-05-03 | 2018-05-03 | A kind of piston rod oil inlet oil extraction oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810412420.9A CN108457931A (en) | 2018-05-03 | 2018-05-03 | A kind of piston rod oil inlet oil extraction oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108457931A true CN108457931A (en) | 2018-08-28 |
Family
ID=63214579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810412420.9A Pending CN108457931A (en) | 2018-05-03 | 2018-05-03 | A kind of piston rod oil inlet oil extraction oil cylinder |
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| CN (1) | CN108457931A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566535A (en) * | 2019-08-23 | 2019-12-13 | 格力乐液压系统(常州)有限公司 | Constant speed differential variable oil cylinder |
| CN110950264A (en) * | 2019-12-30 | 2020-04-03 | 哈尔滨通用液压机械制造有限公司 | Hydraulic cylinder device for jack |
| CN113048123A (en) * | 2021-03-24 | 2021-06-29 | 北京汽车集团越野车有限公司 | Power cylinder assembly and vehicle |
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| JPH09291563A (en) * | 1996-04-26 | 1997-11-11 | Rentaruno Nikken:Kk | Oil pressure supply mechanism of expandable arm body |
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