CN109340205A - It can floating cylinder and engineering machinery - Google Patents
It can floating cylinder and engineering machinery Download PDFInfo
- Publication number
- CN109340205A CN109340205A CN201811571451.5A CN201811571451A CN109340205A CN 109340205 A CN109340205 A CN 109340205A CN 201811571451 A CN201811571451 A CN 201811571451A CN 109340205 A CN109340205 A CN 109340205A
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- Prior art keywords
- hydraulic
- control
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- chamber
- cylinder
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Links
- 239000003921 oil Substances 0.000 claims description 70
- 239000012530 fluid Substances 0.000 claims description 29
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 3
- 230000003134 recirculating effect Effects 0.000 abstract description 6
- 239000010720 hydraulic oil Substances 0.000 description 22
- 230000009286 beneficial effect Effects 0.000 description 8
- 239000002828 fuel tank Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005303 weighing Methods 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
- F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/72—Output members, e.g. hydraulic motors or cylinders or control therefor having locking means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
This application involves technical field of engineering machinery, more particularly to one kind can floating cylinder, including cylinder barrel and piston rod, the piston rod is mounted in the cylinder barrel, and the both ends of the piston rod are stretched out from the both ends of the cylinder barrel respectively, inner cavity is formed in the cylinder barrel, it further include compartmental dividers, the compartmental dividers are fixed on the piston rod and are slidably matched with the inner wall of the cylinder barrel, and the inner cavity is divided into the first chamber and the second chamber being distributed in the axial direction of the piston rod by the compartmental dividers.The application is able to solve the rod chamber room of current oil cylinder and rodless cavity room recirculating oil quantity difference is difficult to the technical issues of floating.
Description
Technical field
This application involves technical field of engineering machinery more particularly to one kind can floating cylinder and engineering machinery.
Background technique
Currently, oil cylinder is widely used in engineering machinery field, hydraulic cylinder can play motive power, mechanism kinematic, folding
The functions such as folded mechanism can lock the stability and safety for promoting equipment by balanced valve, very easy to use, in work
Journey machinery field is even more to have obtained a large amount of use, is even more to have been widely used on long-spiral drilling machine.But at present
Rod chamber room and rodless cavity room are generally divided into oil cylinder, two chambers recirculating oil quantity difference is difficult to float, and is only capable of oil cylinder hydraulic
Control is lower flexible, it is difficult to carry out servo-actuated work with host.
Summary of the invention
This application provides one kind can floating cylinder and engineering machinery, to solve rod chamber room and the rodless cavity of current oil cylinder
Room recirculating oil quantity difference is difficult to the technical issues of floating.
To achieve the goals above, the application uses following technical scheme:
The one aspect of the application provide one kind can floating cylinder, including cylinder barrel and piston rod, the piston rod be mounted on
In the cylinder barrel, and the both ends of the piston rod are stretched out from the both ends of the cylinder barrel respectively, are formed with inner cavity in the cylinder barrel,
It further include compartmental dividers, the compartmental dividers are fixed on the piston rod and slide with the inner wall of the cylinder barrel
Dynamic cooperation, and the inner cavity is divided into the first chamber and second being distributed in the axial direction of the piston rod by the compartmental dividers
Chamber.
Preferably, it is provided with the first hydraulic fluid port being connected to the first chamber on the cylinder barrel, and is connected to second chamber
The second hydraulic fluid port,
Further include hydraulic control balanced valve, hydraulic control balanced valve tool there are two the first balanced valve actuator port, two it is second flat
Weighing apparatus valve actuator port and two balanced valve control ports,
Two the first balanced valve actuator ports are connect with the first hydraulic fluid port and the second hydraulic fluid port respectively.
The beneficial effect of the technical solution is: if you need to can floating cylinder under hydraulic control stretch, two second can be made
A connection pressure oil-source, another connection fuel tank in balanced valve actuator port make two balanced valve controls to realize oil return
Liquefaction mouth and control oil circuit connection are passed through hydraulic oil to control oil circuit, and by pressure oil-source to can be passed through liquid in floating cylinder
Pressure oil, then can be achieved can floating cylinder under hydraulic control stretch；If you need to can floating cylinder float, then two balanced valves control oil
Mouth and control oil circuit connection, and make two the second balanced valve actuator ports connections, it is passed through hydraulic oil to control oil circuit, then can be achieved
Hydraulic oil flows between in the first chamber and the second chamber, so realize can floating cylinder floating.
It preferably, further include three position four-way directional control valve, there are two respectively and described in two for the three position four-way directional control valve tool
First reversal valve actuator port of the second balanced valve actuator port connection, the three position four-way directional control valve have and make two described the
The operating position of two balanced valve actuator ports connection.
The beneficial effect of the technical solution is: can be realized by the commutation of the three position four-way directional control valve logical to the first chamber
Enter hydraulic oil and be passed through between hydraulic oil to the second chamber to switch over, to realize piston rod both ends cycle operation.Work as 3-position 4-way
When reversal valve switches to the operating position for being connected to two the second balanced valve actuator ports, then can be realized can floating cylinder it is floating
It is dynamic.
It preferably, further include control oil circuit and switch valve, the control oil circuit and two balanced valve control ports connect
Logical, the switch valve is mounted on the control oil circuit.
The beneficial effect of the technical solution is: this facilitates the control realized to hydraulic control balanced valve, and then facilitates control can
The oil inlet and oil return and floating of floating cylinder.
Preferably, it is provided with the first hydraulic fluid port being connected to the first chamber on the cylinder barrel and is connected to second chamber
Second hydraulic fluid port,
It further include hydraulic lock, there are two the first hydraulic lock actuator ports, two the second hydraulic lock work for the hydraulic lockset
Hydraulic fluid port and two hydraulic lock control ports, two the first hydraulic lock actuator ports connect with the first hydraulic fluid port and the second hydraulic fluid port respectively
It connects.
The beneficial effect of the technical solution is: if you need to can floating cylinder under hydraulic control stretch, two second can be made
A connection pressure oil-source, another connection and fuel tank in hydraulic lock actuator port makes two hydraulic lock controls to realize oil return
Liquefaction mouth and control oil circuit connection are passed through hydraulic oil to control oil circuit, and by pressure oil-source to can be passed through liquid in floating cylinder
Pressure oil, then can be achieved can floating cylinder under hydraulic control stretch；If you need to can floating cylinder float, then two hydraulic lock controls oil
Mouth and control oil circuit connection, and make two the second hydraulic lock actuator ports connections, it is passed through hydraulic oil to control oil circuit, then can be achieved
Hydraulic oil flows between in the first chamber and the second chamber, so realize can floating cylinder floating.
It preferably, further include three position four-way directional control valve, there are two respectively and described in two for the three position four-way directional control valve tool
First reversal valve actuator port of the second hydraulic lock actuator port connection, the three position four-way directional control valve have and make two described the
The operating position of two hydraulic lock actuator ports connection.
The beneficial effect of the technical solution is: can be realized by the commutation of the three position four-way directional control valve logical to the first chamber
Enter hydraulic oil and be passed through between hydraulic oil to the second chamber to switch over, to realize piston rod both ends cycle operation.Work as 3-position 4-way
When reversal valve switches to the operating position for making two the second hydraulic lock actuator ports, then can be realized can floating cylinder floating.
It preferably, further include control oil circuit and switch valve, the control oil circuit and two hydraulic lock control ports connect
Logical, the switch valve is mounted on the control oil circuit.
The beneficial effect of the technical solution is: this facilitates the control realized to hydraulic lock, and then facilitates control that can float
The oil inlet and oil return and floating of oil cylinder.
Preferably, the compartmental dividers are discoid, and the compartmental dividers outer rim is bonded with the inner wall of the inner cavity.
The beneficial effect of the technical solution is: this reduces compartmental dividers as far as possible and occupies to intracavity space.
Preferably, the compartmental dividers have at least two, and each compartmental dividers are in the axial direction of the piston rod
Distribution.
The beneficial effect of the technical solution is: this further pass through compartmental dividers between the first chamber and the second chamber into
Row better seal avoids hydraulic oil from being between the first chamber and the second chamber from compartmental dividers and flows.
Further aspect of the application provides a kind of engineering machinery, can floating cylinder including above-mentioned.
Technical solution provided by the present application can achieve it is following the utility model has the advantages that
It is provided herein can floating cylinder, the first chamber and the second chamber are rod chamber, and then make the first chamber and
The recirculating oil quantity of two chambers is identical, so that oil cylinder is not only able to stretch under hydraulic control, but also can be realized floating, and then realize
Servo-actuated work is carried out with host；Moreover, the both ends of piston rod can be used to transmit power, make the first chamber and the second chamber alternately into
Oil can make piston rod both ends cycle operation.
The additional technical feature and its advantage of the application will illustrate more obvious in following description content, or pass through
The concrete practice of the application is recognized that.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application specific embodiment, specific embodiment will be described below
Needed in attached drawing be briefly described.It should be evident that the accompanying drawings in the following description is some implementations of the application
Mode for those of ordinary skill in the art without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 be it is provided by the embodiments of the present application can floating cylinder a kind of structural schematic diagram；
Fig. 2 be it is provided by the embodiments of the present application can floating cylinder a kind of hydraulic principle schematic diagram.
Appended drawing reference:
1- hydraulic lock；
2- controls oil circuit；
3- switch valve；
4- three position four-way directional control valve；
5- can floating cylinder；
The first hydraulic fluid port of 51-；
The second hydraulic fluid port of 52-；
53- piston rod；
54- cylinder barrel；
55- compartmental dividers；
The inner cavity 56-；
6- hydraulic control balanced valve；
61- the second balanced valve actuator port；
62- balanced valve control port；
63- the first balanced valve actuator port.
Specific embodiment
It is clearly and completely described below in conjunction with technical solution of the attached drawing to the application, it is clear that described implementation
Example is some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
In the description of the present application, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for describe the application and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present application, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in application.
As shown in Figs. 1-2, the one aspect of the application provide one kind can floating cylinder, including cylinder barrel 54 and piston rod 53,
The piston rod 53 is mounted in the cylinder barrel 54, and the both ends of the piston rod 53 are stretched from the both ends of the cylinder barrel 54 respectively
Out, it is formed with inner cavity 56 in the cylinder barrel 54,
Further include compartmental dividers 55, the compartmental dividers 55 be fixed on the piston rod 53 and with the cylinder barrel 54
Inner wall be slidably matched, and the inner cavity 56 is divided into and is distributed in the axial direction of the piston rod 53 by the compartmental dividers 55
The first chamber and the second chamber.
Provided by the embodiment of the present application can floating cylinder 5, the first chamber and the second chamber are rod chamber, and then make first
The recirculating oil quantity of chamber and the second chamber is identical, so that oil cylinder is not only able to stretch under hydraulic control, but also can be realized floating, into
And it realizes and carries out servo-actuated work with host；Moreover, the both ends of piston rod 53 can be used to transmit power, make the first chamber and second
Chamber replaces oil inlet, can make 53 both ends cycle operation of piston rod.
Preferably, be provided with the first hydraulic fluid port 51 being connected to the first chamber on the cylinder barrel 54, and with second chamber
Second hydraulic fluid port 52 of connection,
It further include hydraulic control balanced valve 6, there are two the first balanced valve actuator ports 63, two for the hydraulic control balanced valve 6 tool
Two balanced valve actuator ports 61 and two balanced valve control ports 62,
Two the first balanced valve actuator ports 63 are connect with the first hydraulic fluid port 51 and the second hydraulic fluid port 52 respectively.
In use, if you need to can floating cylinder 5 under hydraulic control stretch, can make in two the second balanced valve actuator ports 61
A connection pressure oil-source, another connection fuel tank to realize oil return, and make two balanced valve control ports 62 and control oil
Road 2 connects, and is passed through hydraulic oil to control oil circuit 2, and by pressure oil-source to that can be passed through hydraulic oil in floating cylinder 5, then can be real
Now can floating cylinder 5 under hydraulic control stretch；If you need to can floating cylinder 5 float, then two balanced valve control ports 62 and control
Liquefaction road 2 connects, and makes two the second balanced valve actuator port 61 connections, is passed through hydraulic oil to control oil circuit 2, then liquid can be achieved
Pressure oil flows between in the first chamber and the second chamber, so realize can floating cylinder 5 floating.
Preferably, provided by the embodiment of the present application can floating cylinder 5 further include three position four-way directional control valve 4, described three
There are two the first reversal valve working oils being connected to respectively with two the second balanced valve actuator ports 61 for the tool of four-way reversing valve 4
Mouthful, the three position four-way directional control valve 4 has the operating position for being connected to two the second balanced valve actuator ports 61.By this
The commutation of three position four-way directional control valve 4 can be realized to be passed through hydraulic oil to the first chamber and be passed through between hydraulic oil to the second chamber and be cut
It changes, to realize 53 both ends cycle operation of piston rod.Make two the second balanced valve actuator ports when three position four-way directional control valve 4 switches to
61 connection operating position when, then can be realized can floating cylinder 5 floating.
Preferably, provided by the embodiment of the present application can floating cylinder 5 further include control oil circuit 2 and switch valve 3, the control
Liquefaction road 2 is connected to two balanced valve control ports 62, and the switch valve 3 is mounted on the control oil circuit 2.This is convenient
Realize control to hydraulic control balanced valve 6, so facilitate control can floating cylinder 5 oil inlet and oil return and floating.
In addition to using above-mentioned hydraulic control balanced valve 6, also preferably specifically set on the cylinder barrel 54 using hydraulic lock 1
The second hydraulic fluid port 52 for being equipped with the first hydraulic fluid port 51 being connected to the first chamber and being connected to second chamber,
It further include hydraulic lock 1, there are two the first hydraulic lock actuator ports, two the second hydraulic lock works for the tool of hydraulic lock 1
Make hydraulic fluid port and two hydraulic lock control ports, two the first hydraulic lock actuator ports are oily with the first hydraulic fluid port 51 and second respectively
Mouth 52 connects.
In use, if you need to can floating cylinder 5 under hydraulic control stretch, can make in two the second hydraulic lock actuator ports
One connection pressure oil-source, another connection and fuel tank connect two hydraulic lock control ports and control oil circuit 2 to realize oil return
It connects, is passed through hydraulic oil to control oil circuit 2, and by pressure oil-source to hydraulic oil can be passed through in floating cylinder 5, then can be achieved to float
Dynamic oil cylinder 5 stretches under hydraulic control；If you need to can floating cylinder 5 float, then two hydraulic lock control ports and control oil circuit 2 connect
It connects, and makes two the second hydraulic lock actuator port connections, be passed through hydraulic oil to control oil circuit 2, then hydraulic oil can be achieved first
Flowed between in chamber and the second chamber, so realize can floating cylinder 5 floating.
Preferably, provided by the embodiment of the present application can floating cylinder 5 further include three position four-way directional control valve 4, described three
The first reversal valve actuator port that there are two the tools of four-way reversing valve 4 is connected to two the second hydraulic lock actuator ports respectively,
The three position four-way directional control valve 4 has the operating position for making two the second hydraulic lock actuator port connections.Pass through this three
The commutation of four-way reversing valve 4 can be realized to be passed through hydraulic oil to the first chamber and be passed through between hydraulic oil to the second chamber and switch over,
To realize 53 both ends cycle operation of piston rod.Make two the second hydraulic lock actuator ports when three position four-way directional control valve 4 switches to
When operating position, then can be realized can floating cylinder 5 floating.
Preferably, provided by the embodiment of the present application can floating cylinder 5 further include control oil circuit 2 and switch valve 3, the control
Liquefaction road 2 is connected to two hydraulic lock control ports, and the switch valve 3 is mounted on the control oil circuit 2.This facilitates reality
Now to the control of hydraulic lock 1, so facilitate control can floating cylinder 5 oil inlet and oil return and floating.
Preferably, the compartmental dividers 55 are discoid, and 55 outer rim of compartmental dividers is interior with the inner cavity 56
Wall fitting.This reduces compartmental dividers 55 as far as possible and occupies to 56 space of inner cavity.
Preferably, the compartmental dividers 55 have at least two, and each compartmental dividers 55 are in the piston rod 53
It is distributed in axial direction.This further passes through compartmental dividers 55 to better seal is carried out between the first chamber and the second chamber, avoids liquid
Pressure oil is between the first chamber and the second chamber from compartmental dividers 55 and flows.
Further aspect of the application provides a kind of engineering machinery, including can float provided by above-mentioned the embodiment of the present application
Oil cylinder 5.
Engineering machinery is preferably long-spiral drilling machine.Engineering machinery provided by the embodiment of the present application, by the application
Provided by embodiment can floating cylinder 5 use, make can floating cylinder 5 the first chamber and the second chamber be rod chamber, in turn
Keep the recirculating oil quantity of the first chamber and the second chamber identical, so that oil cylinder is not only able to stretch under hydraulic control, but also can be realized
It floats, and then realizes and carry out servo-actuated work with host；Moreover, the both ends of piston rod 53 can be used to transmit power, make first
Chamber and the second chamber replace oil inlet, can make 53 both ends cycle operation of piston rod.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the application, rather than its limitations；To the greatest extent
Pipe is described in detail the application referring to foregoing embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, each embodiment technology of the application that it does not separate the essence of the corresponding technical solution
The range of scheme.
In addition, it will be appreciated by those of skill in the art that although above-mentioned some embodiments include institute in other embodiments
Including certain features rather than other feature, but the combination of the feature of different embodiment means in scope of the present application
Within and form different embodiments.For example, in claims above, embodiment claimed it is any it
One can in any combination mode come using.In addition, the information disclosed in the background technology section is intended only to deepen pair
The understanding of the general background technology of the application, and be not construed as recognizing or implying in any form that information composition has been this
The prior art well known to the technical staff of field.
Claims (10)
1. can floating cylinder, which is characterized in that including cylinder barrel (54) and piston rod (53), the piston rod (53) is mounted on described
In cylinder barrel (54), and the both ends of the piston rod (53) are stretched out from the both ends of the cylinder barrel (54) respectively, in the cylinder barrel (54)
Inner cavity (56) are inside formed with,
Further include compartmental dividers (55), the compartmental dividers (55) be fixed on the piston rod (53) and with the cylinder barrel
(54) inner wall is slidably matched, and the inner cavity (56) are divided into the piston rod (53) by the compartmental dividers (55)
The first chamber and the second chamber being distributed in axial direction.
2. according to claim 1 can floating cylinder, which is characterized in that be provided on the cylinder barrel (54) and the first chamber
The first hydraulic fluid port (51) of connection, and the second hydraulic fluid port (52) being connected to second chamber,
It further include hydraulic control balanced valve (6), there are two the first balanced valve actuator ports (63), two for hydraulic control balanced valve (6) tool
Second balanced valve actuator port (61) and two balanced valve control ports (62),
Two the first balanced valve actuator ports (63) connect with the first hydraulic fluid port (51) and the second hydraulic fluid port (52) respectively.
3. according to claim 2 can floating cylinder, which is characterized in that it further include three position four-way directional control valve (4), described three
There are two the first reversal valve works being connected to respectively with two the second balanced valve actuator ports (61) for position and four-way reversing valve (4) tool
Make hydraulic fluid port, the three position four-way directional control valve (4) has the working position for making two the second balanced valve actuator port (61) connections
It sets.
4. according to claim 2 can floating cylinder, which is characterized in that it further include control oil circuit (2) and switch valve (3),
The control oil circuit (2) is connected to two balanced valve control ports (62), and the switch valve (3) is mounted on the control oil
On road (2).
5. according to claim 1 can floating cylinder, which is characterized in that be provided on the cylinder barrel (54) and the first chamber
The first hydraulic fluid port (51) of connection and the second hydraulic fluid port (52) being connected to second chamber,
It further include hydraulic lock (1), there are two the first hydraulic lock actuator ports, two the second hydraulic lock works for hydraulic lock (1) tool
Make hydraulic fluid port and two hydraulic lock control ports, two the first hydraulic lock actuator ports respectively with the first hydraulic fluid port (51) and second
Hydraulic fluid port (52) connection.
6. according to claim 5 can floating cylinder, which is characterized in that it further include three position four-way directional control valve (4), described three
There are two the first reversal valve working oils being connected to respectively with two the second hydraulic lock actuator ports for position and four-way reversing valve (4) tool
Mouthful, the three position four-way directional control valve (4) has the operating position for making two the second hydraulic lock actuator port connections.
7. according to claim 5 can floating cylinder, which is characterized in that it further include control oil circuit (2) and switch valve (3),
The control oil circuit (2) is connected to two hydraulic lock control ports, and the switch valve (3) is mounted on the control oil circuit
(2) on.
8. according to any one of claims 1-7 can floating cylinder (5), which is characterized in that the compartmental dividers
(55) to be discoid, compartmental dividers (55) outer rim is bonded with the inner wall of the inner cavity (56).
9. according to claim 8 can floating cylinder, which is characterized in that the compartmental dividers (55) have at least two,
Each compartmental dividers (55) are distributed in the axial direction of the piston rod (53).
10. engineering machinery, which is characterized in that including as described in any one of claim 1-9 can floating cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811571451.5A CN109340205B (en) | 2018-12-21 | 2018-12-21 | Floatable oil cylinder and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811571451.5A CN109340205B (en) | 2018-12-21 | 2018-12-21 | Floatable oil cylinder and engineering machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109340205A true CN109340205A (en) | 2019-02-15 |
| CN109340205B CN109340205B (en) | 2023-10-24 |
Family
ID=65302847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811571451.5A Active CN109340205B (en) | 2018-12-21 | 2018-12-21 | Floatable oil cylinder and engineering machinery |
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| Country | Link |
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| CN (1) | CN109340205B (en) |
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| CN109340205B (en) | 2023-10-24 |
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