CN205772912U - A kind of auxiliary controls loop and has its auxiliary hydraulic assembly and crane - Google Patents
A kind of auxiliary controls loop and has its auxiliary hydraulic assembly and crane Download PDFInfo
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- CN205772912U CN205772912U CN201620469987.6U CN201620469987U CN205772912U CN 205772912 U CN205772912 U CN 205772912U CN 201620469987 U CN201620469987 U CN 201620469987U CN 205772912 U CN205772912 U CN 205772912U
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Abstract
The utility model discloses a kind of auxiliary control loop and there is its auxiliary hydraulic assembly and crane, auxiliary controls loop and includes the first oil circuit for controlling auxiliary installation oil cylinder and for controlling the second oil circuit of auxiliary oil cylinder with pin, described first oil circuit and/or the second oil circuit are provided with bidirectional locking valve, two oil-ins of described bidirectional locking valve connect described auxiliary respectively and control oil-in and the oil return opening in loop, and two oil-outs of described bidirectional locking valve connect described auxiliary respectively and install oil cylinder and/or the rod chamber of auxiliary oil cylinder with pin and rodless cavity.This utility model is by arranging bidirectional locking valve on the first oil circuit and/or the second oil circuit, it can be avoided that are installed oil cylinder by auxiliary for oil return when loading bigger oil cylinder (such as auxiliary varied angle oil cylinder etc.) action and auxiliary oil cylinder with pin causes interference effect, avoid auxiliary that the phenomenon such as oil cylinder and/or the sliding of auxiliary oil cylinder with pin piston rod, retraction is installed, play safety guarantee effect.
Description
Technical field
This utility model relates to technical field of engineering machinery, particularly relates to a kind of auxiliary and controls loop and tool
There are its auxiliary hydraulic assembly and crane.
Background technology
Existing auxiliary installs oil cylinder, auxiliary oil cylinder with pin and auxiliary varied angle oil cylinder all oil returns to same oil
Case, auxiliary is installed and is not installed locking equipment on oil cylinder, the corresponding oil circuit control of auxiliary oil cylinder with pin, therefore exists
Oil return during auxiliary varied angle cylinder action may install oil cylinder at auxiliary, auxiliary oil cylinder with pin produces the back of the body
Pressure, especially installs oil cylinder, auxiliary oil cylinder with pin at auxiliary and is in that static (not oil-feed, oil cylinder does not stretches out
And retracting action, remain resting state) in the case of, particularly evident, once this return oil pressure pressure energy
Enough overcome auxiliary that rubbing between the pressure in oil cylinder and auxiliary oil cylinder with pin and piston head and inner wall of cylinder is installed
During wiping power, auxiliary is installed the piston of oil cylinder and auxiliary oil cylinder with pin and can be promoted (stretch out or bounce back), interferes with
Auxiliary installs oil cylinder and auxiliary oil cylinder with pin.
Thus, it is desirable to have a kind of technical scheme overcomes or at least alleviates that at least one of prior art is above-mentioned to be lacked
Fall into.
Utility model content
The purpose of this utility model is that providing a kind of auxiliary to control loop overcomes or at least alleviate existing skill
At least one drawbacks described above in art.
For achieving the above object, this utility model provides a kind of auxiliary to control loop, and described auxiliary controls loop
Including for control auxiliary install oil cylinder the first oil circuit and for controlling the second oil circuit of auxiliary oil cylinder with pin,
Described first oil circuit and/or the second oil circuit are provided with bidirectional locking valve, two oil-feeds of described bidirectional locking valve
Mouth connects described auxiliary respectively and controls oil-in and the oil return opening in loop, and two of described bidirectional locking valve fuel-displaced
Mouth connects described auxiliary respectively and installs oil cylinder and/or the rod chamber of auxiliary oil cylinder with pin and rodless cavity.
Further, described auxiliary control loop also includes the 3rd oil for controlling auxiliary varied angle oil cylinder
Road, described 3rd oil circuit is provided with bidirectional locking valve, and two oil-ins of this bidirectional locking valve connect institute respectively
State auxiliary and control oil-in and the oil return opening in loop, and two oil-outs connect described auxiliary varied angle respectively
The rod chamber of oil cylinder and rodless cavity.
Further, described auxiliary controls loop and includes reversal valve, described first oil circuit, the second oil circuit and the
Being respectively provided with described reversal valve on three oil circuits, the oil-in of described reversal valve and oil return opening connect described pair respectively
Arm controls oil-in and the oil return opening in loop, and two actuator ports of described reversal valve connect described two-way respectively
Two oil-ins of lock valve.
Further, described bidirectional locking valve includes the first check valve and the second check valve, described first unidirectional
Valve is connected between the first actuator port of described reversal valve and described rodless cavity, and described second check valve connects
Between second actuator port and described rod chamber of described reversal valve, described reversal valve is in external world's driving effect
Under there is primary importance, the second position and the 3rd position, in described primary importance, the oil-feed of described reversal valve
Mouth is closed, and in the described second position, the oil-in of described reversal valve is in open mode, described
Auxiliary controls the oil-in in loop, the first actuator port of described reversal valve, described first check valve with described
Rodless cavity is sequentially connected the logical auxiliary that formed and controls the oil-feed oil circuit in loop, described rod chamber, described second unidirectional
Valve and the second actuator port of described reversal valve are sequentially connected the logical auxiliary that formed and control the oil return circuit in loop.
Further, described first check valve and two check valves are hydraulic control one-way valve, described first check valve
Oil circuit control connects commutation second actuator port of described reversal valve, and the oil circuit control of described second check valve is even
Connect the first actuator port of described reversal valve.
Further, each described bidirectional locking valve and each reversal valve are integrated in a valve block.
Further, described valve block has two oil-ins and an oil return opening, an oil-feed of described valve block
Mouthful connect the oil-in of reversal valve on the 3rd oil circuit, another oil-in of described valve block connect the first oil circuit and
The oil-in of reversal valve on second oil circuit, the oil return opening of described valve block is connected with the oil return opening of each reversal valve.
This utility model also provides for a kind of auxiliary hydraulic assembly, and it includes that auxiliary controls loop, described auxiliary control
Loop processed is that auxiliary as above controls loop.
This utility model also provides for a kind of crane, and including auxiliary hydraulic assembly, described auxiliary hydraulic assembly is
Auxiliary hydraulic assembly as above.
This utility model is by arranging bidirectional locking valve on the first oil circuit and/or the second oil circuit, it is possible to avoid
Auxiliary is installed oil cylinder and pair by oil return when loading bigger oil cylinder (such as auxiliary varied angle oil cylinder etc.) action
Arm oil cylinder with pin causes interference effect, it is to avoid auxiliary installs oil cylinder and/or the cunning of auxiliary oil cylinder with pin piston rod
The phenomenons such as shifting, retraction, play safety guarantee effect.
Accompanying drawing explanation
Fig. 1 is the schematic diagram in the auxiliary control loop of this utility model one preferred implementation.
Reference:
| 1 | Auxiliary installs oil cylinder | 1a | Auxiliary installs the rodless cavity of oil cylinder |
| 1b | Auxiliary installs the rod chamber of oil cylinder | 2 | Auxiliary oil cylinder with pin |
| 2a | The rodless cavity of auxiliary oil cylinder with pin | 2b | The rod chamber of auxiliary oil cylinder with pin |
| 3 | Auxiliary varied angle oil cylinder | 3a | The rodless cavity of auxiliary varied angle oil cylinder |
| 3b | The rod chamber of auxiliary varied angle oil cylinder | 4 | Reversal valve |
| 41 | First actuator port of reversal valve | 42 | Second actuator port of reversal valve |
| 43 | The oil-in of reversal valve | 44 | The oil return opening of reversal valve |
| 5 | First check valve | 51 | The oil circuit control of the first check valve |
| 6 | Second check valve | 61 | The oil circuit control of the second check valve |
| 7 | Valve block | P1,P2 | Two oil-ins of valve block |
| T | The oil return opening of valve block |
Detailed description of the invention
In the accompanying drawings, use same or similar label represent same or similar element or have identical or
The element of similar functions.Below in conjunction with the accompanying drawings embodiment of the present utility model is described in detail.
In description of the present utility model, term " " center ", " longitudinally ", " laterally ", "front", "rear",
The orientation of the instruction such as "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " or position
Relation of putting, for based on orientation shown in the drawings or position relationship, is for only for ease of description this utility model and letter
Change and describe rather than indicate or imply that the device of indication or element must have specific orientation, with specifically
Azimuth configuration and operation, therefore it is not intended that restriction to this utility model protection domain.
As it is shown in figure 1, the auxiliary that the present embodiment is provided controls loop includes that auxiliary installs oil cylinder 1, auxiliary
Oil cylinder with pin 2 and auxiliary varied angle oil cylinder 3, auxiliary installation oil cylinder 1 is for auxiliary mounting and adjusting, and auxiliary pulls out
Pin oil cylinder 2 is pulled pin adjustments for auxiliary, and auxiliary varied angle oil cylinder 3 is used for making to fix auxiliary luffing.Background skill
Art is it has been already mentioned that the load being similar to auxiliary varied angle oil cylinder 3 is relatively big, and therefore, return pressure is the biggest,
Auxiliary varied angle oil cylinder 3 action when, its return pressure may interfere with auxiliary and install oil cylinder 1
With auxiliary oil cylinder with pin 2.
In consideration of it, the present embodiment is for controlling the first oil circuit of auxiliary installation oil cylinder 1 and/or for controlling
Second oil circuit of auxiliary oil cylinder with pin 2 is provided with bidirectional locking valve, two oil-ins of described bidirectional locking valve
Connect described auxiliary respectively and control oil-in and oil return opening, two oil-outs of described bidirectional locking valve in loop
Connect auxiliary respectively and oil cylinder 1 and/or the rodless cavity of auxiliary oil cylinder with pin 2 and rod chamber are installed.It is to say,
Two oil-outs of the bidirectional locking valve on the first oil circuit connect auxiliary respectively and install the rodless cavity of oil cylinder 1
1a and rod chamber 1b, two oil-outs of the bidirectional locking valve on the second oil circuit connect auxiliary respectively and pull pin
The rodless cavity 2a and rod chamber 2b of oil cylinder 2.
Install as a example by oil cylinder 1 by auxiliary, the when that described auxiliary controlling the oil-in not oil-feed in loop, two-way
Lock valve is closed, and rod chamber 1b and the rodless cavity of auxiliary installation oil cylinder 1 control with described auxiliary
The oil return opening in loop is isolated by bidirectional locking valve, then even if auxiliary varied angle oil cylinder 3 action, in fuel tank
Fluid will not by described auxiliary control loop oil return opening be flowed into auxiliary install oil cylinder 1 rod chamber
1b and rodless cavity, it is to avoid the generation of return oil pressure, and then avoid auxiliary is installed what oil cylinder 1 caused
Interference effect.In like manner, by arranging bidirectional locking valve on the second oil circuit, it is also possible to avoid auxiliary varied angle
The interference effect that auxiliary oil cylinder with pin 2 is caused by the oil return of oil cylinder 3 action.It is to say, by first
On oil circuit and/or the second oil circuit, bidirectional locking valve is set, it is possible to avoid loading bigger oil cylinder (such as auxiliary
Varied angle oil cylinder etc.) action time oil return auxiliary installed oil cylinder and auxiliary oil cylinder with pin cause interference effect,
Avoid auxiliary that the phenomenon such as oil cylinder 1 and/or the sliding of auxiliary oil cylinder with pin 2 piston rod, retraction is installed, play
Safety guarantee effect.
In one embodiment, described auxiliary control loop also includes for controlling auxiliary varied angle oil cylinder 3
The 3rd oil circuit, described 3rd oil circuit is provided with bidirectional locking valve, and two oil-ins of this bidirectional locking valve divide
Do not connect described auxiliary and control oil-in and the oil return opening in loop, and two oil-outs connect described pair respectively
The rod chamber of arm varied angle oil cylinder 3 and rodless cavity.Existing balanced valve is substituted, favorably by bidirectional locking valve
In cost-effective, and control more accurate.
In one embodiment, described auxiliary controls loop and also includes reversal valve 4, described first oil circuit, the
Being respectively provided with reversal valve 4 on two oil circuits and the 3rd oil circuit, the oil-in 43 of reversal valve 4 connects described auxiliary
Controlling the oil-in in loop, the oil return opening 44 of reversal valve 4 connects described auxiliary and controls the oil return opening in loop,
The actuator port 41 of reversal valve 4 and actuator port 42 connect two oil-feeds of described bidirectional locking valve respectively
Mouthful.By reversal valve 4, described auxiliary can be controlled and control the oil-feed in loop.
The most still installing as a example by oil cylinder 1 by auxiliary, the work process that described auxiliary controls loop is retouched
State.
At two actuator ports of reversal valve 4 and the oil-in of auxiliary installation oil cylinder 1 and the company of being in of oil-out
Under logical state, bidirectional locking valve is in opening, and described auxiliary controls the oil-in in loop and passes through reversal valve
One actuator port of 4 is allowed to install the oil-in delivery hydraulic pressure oil of oil cylinder 1, described auxiliary work to auxiliary
The oil-out making oil cylinder starts to be allowed to control to described auxiliary by another actuator port of reversal valve 4
The oil return opening in loop carries out oil return, completes auxiliary and installs the stretching out and bounce back of piston rod of oil cylinder 1.Reversible lock
When only valve is in opening, is immediately opened and closed by bidirectional locking valve, play and steadily act on easily.
Two actuator ports and auxiliary at reversal valve 4 install the oil-in of oil cylinder 1 and oil-out be in every
Under state, bidirectional locking valve is closed, and described auxiliary controls the oil-in in loop and passes through reversal valve
The actuator port of 4 cannot install the oil-in delivery hydraulic pressure oil of oil cylinder 1 to auxiliary, and auxiliary installs oil cylinder simultaneously
The oil-out of 1 also cannot by the actuator port of reversal valve 4 to described auxiliary control loop oil return opening enter
Row oil return, the piston rod of auxiliary installation oil cylinder 1 is in lockup state, i.e. resting state.Pass through bidirectional locking
Valve controls to play dead lock for safety effect in auxiliary controls loop, is prevented effectively from the bigger oil cylinder of load (such as
Auxiliary varied angle oil cylinder 3 etc.) action time oil return to auxiliary install oil cylinder 1 cause interference effect, play peace
The effect of full guard.It should be understood that auxiliary oil cylinder with pin 2 and auxiliary varied angle oil cylinder 3 is worked
It is identical that journey and auxiliary install oil cylinder 1, does not repeats them here.
In one embodiment, described bidirectional locking valve includes the first check valve 5 and the second check valve 6, the
One check valve 5 is connected between the first actuator port 41 and the described rodless cavity of reversal valve 4, and second is unidirectional
Valve 6 is connected between the second actuator port 42 and the described rod chamber of reversal valve 4.Reversal valve 4 is three
Cross valve, has primary importance, the second position and the 3rd position under external world's driving effect.Wherein, in institute
Stating primary importance, the oil-in of reversal valve 4 is closed.At the described second position, reversal valve 4
Oil-in be in open mode, described auxiliary controls the oil-in in loop, the first working oil of reversal valve 4
Mouth the 41, first check valve 5 and described rodless cavity are sequentially connected the logical auxiliary that formed and control the oil-feed oil circuit in loop,
Described rod chamber the second check valve 6 and the second actuator port 42 of reversal valve 4 are sequentially connected logical formation auxiliary
Control the oil return circuit in loop.
Preferably, the first check valve 5 and two check valves 6 use hydraulic control one-way valve, the control of the first check valve 5
Liquefaction road 51 connects commutation second actuator port 42 of reversal valve 4, the oil circuit control 61 of the second check valve 6
Connect the first actuator port 42 of reversal valve 4.Say as a example by reversal valve 4 is as solenoid directional control valve below
Bright.
Installing oil cylinder 1 for auxiliary, auxiliary is installed oil cylinder 1 and is formed auxiliary with reversal valve 4 and bidirectional locking valve
Install and control loop.When reversal valve 4 is in raw bits (position in i.e.), auxiliary installs the oil-out of oil cylinder 1
With oil-in and the oil return opening isolation that described auxiliary controls loop.Wherein, bidirectional locking valve is closed,
Make auxiliary that oil cylinder 1 to be installed to remain static, it is to avoid the phenomenon such as sliding, retraction, play safety guarantee effect.
When the electric magnet Y22 of reversal valve 4 obtains electric, reversal valve 4 is in left position, and described auxiliary controls the oil-feed in loop
The rodless cavity 1a that mouth installs oil cylinder 1 with the first check valve 5 and auxiliary successively by reversal valve 4 connects, secondary
The oil return opening of rod chamber 1b and described auxiliary control loop that arm installs oil cylinder 1 connects, and forms auxiliary and installs
Oil cylinder 1 stretch out loop.Wherein, auxiliary installs the rodless cavity 1a oil circuit oil-feed of oil cylinder 1, through two-way
During lock valve, oil circuit control 61 opens the second check valve 6, makes auxiliary install the rod chamber 1b oil of oil cylinder 1
The steady oil return in road, and during auxiliary mounting and adjusting, immediately opened and closed by bidirectional locking valve,
Form the regulation of oil cylinder position trace, play and steadily act on easily.When the electric magnet Y23 of reversal valve 4 obtains electric,
Reversal valve 4 is in right position, and the oil-in that described auxiliary controls loop is unidirectional with second successively by reversal valve 4
The rod chamber 1b that valve 6 installs oil cylinder 1 with auxiliary connects, and auxiliary installs the rodless cavity 1a of oil cylinder 1 with described
Auxiliary controls the oil return opening connection in loop, forms auxiliary and installs the retraction loop of oil cylinder 1.Wherein, auxiliary peace
The rod chamber 1b oil circuit oil-feed of charge of oil cylinder 1, through bidirectional locking valve, it is single that oil circuit control 51 opens first
To valve 5, make auxiliary that the rodless cavity steady oil return of 1a oil circuit of oil cylinder 1 to be installed, and at auxiliary mounting and adjusting
During, immediately opened and closed by bidirectional locking valve, form the regulation of oil cylinder position trace, play steadily
Act on easily.
For auxiliary oil cylinder with pin 2, auxiliary oil cylinder with pin 2 forms auxiliary with reversal valve 4 and bidirectional locking valve
Amplitude oil cylinder controls loop.When reversal valve 4 is in raw bits (position in i.e.), returning of auxiliary oil cylinder with pin 2
Hydraulic fluid port and described auxiliary control oil-in and the oil return opening isolation in described auxiliary control loop in loop.Wherein,
Bidirectional locking valve is closed, and makes auxiliary oil cylinder with pin 2 remain static, it is to avoid sliding, retraction
Etc. phenomenon, play safety guarantee effect.When the electric magnet Y20 of reversal valve 4 obtains electric, reversal valve 4 is in a left side
Position, described auxiliary is controlled the oil-in in loop and is pulled pin with the first check valve 5 and auxiliary successively by reversal valve 4
The rodless cavity 2a connection of oil cylinder 2, the rod chamber 2b of auxiliary oil cylinder with pin 2 controls loop with described auxiliary
Oil return opening connects, and form auxiliary oil cylinder with pin 2 stretches out loop.Wherein, auxiliary oil cylinder with pin 2 without bar
Chamber 2a oil circuit oil-feed, through bidirectional locking valve, oil circuit control 61 opens the second check valve 6, makes auxiliary
The rod chamber steady oil return of 2b oil circuit of oil cylinder with pin 2, and during auxiliary pulls pin adjustment, make auxiliary
The steady oil return of rod chamber oil circuit of oil cylinder with pin 2, plays the effect of smooth transition.The electric magnet of reversal valve 4
When Y21 obtains electric, reversal valve 4 is in right position, and described auxiliary is controlled the oil-in in loop and depended on by reversal valve 4
Secondary and the second check valve 6 and auxiliary oil cylinder with pin 2 rod chamber 2b connects, the nothing of auxiliary oil cylinder with pin 2
The oil return opening that bar chamber 2a controls loop with described auxiliary connects, and forms the retraction loop of auxiliary oil cylinder with pin 2.
Wherein, the rod chamber oil circuit oil-feed of auxiliary oil cylinder with pin 2, through bidirectional locking valve, oil circuit control 51
Open the first check valve 5, make the steady oil return of rodless cavity oil circuit of auxiliary oil cylinder with pin 2, and pull out at auxiliary
During pin, by bidirectional locking valve, make the steady oil return of rodless cavity oil circuit of auxiliary oil cylinder with pin 2, play
The effect of smooth transition.
For auxiliary varied angle oil cylinder 3, auxiliary varied angle oil cylinder 3 is formed with reversal valve 4 and bidirectional locking valve
Auxiliary is pulled pin and is controlled loop.When reversal valve 4 is in raw bits (position in i.e.), auxiliary varied angle oil cylinder 3
Oil return opening and described auxiliary control the oil-in in loop and described auxiliary controls the oil return opening isolation in loop.Its
In, bidirectional locking valve is closed, and makes auxiliary varied angle oil cylinder 3 remain static, it is to avoid sliding,
The phenomenons such as retraction, play safety guarantee effect.When the electric magnet Y24 of reversal valve 4 obtains electric, reversal valve 4
Be in left position, described auxiliary control the oil-in in loop by reversal valve 4 successively with the first check valve 5 and pair
The rodless cavity 3a connection of arm varied angle oil cylinder 3, the rod chamber 3b of auxiliary varied angle oil cylinder 3 and described auxiliary
Controlling the oil return opening connection in loop, form auxiliary varied angle oil cylinder 3 stretches out loop.Wherein, auxiliary angle
The rodless cavity oil circuit oil-feed of degree oil cylinder 3, through bidirectional locking valve, it is unidirectional that oil circuit control 61 opens second
Valve 6, makes the steady oil return of rod chamber oil circuit of auxiliary varied angle oil cylinder 3, and during auxiliary varied angle,
Immediately opened and closed by bidirectional locking valve, form the regulation of oil cylinder position trace, play and steadily make easily
With.When the electric magnet Y23 of reversal valve 4 obtains electric, reversal valve 4 is in right position, and described auxiliary controls loop
Oil-in passes through the reversal valve 4 rod chamber 3b successively with the second check valve 6 and auxiliary varied angle oil cylinder 3 and connects
Logical, the oil return opening that the rodless cavity 3a of auxiliary varied angle oil cylinder 3 controls loop with described auxiliary connects, and is formed
The retraction loop of auxiliary varied angle oil cylinder 3.Wherein, the rod chamber oil circuit oil-feed of auxiliary varied angle oil cylinder 3,
Through bidirectional locking valve, oil circuit control 51 opens the first check valve 5, makes auxiliary varied angle oil cylinder 3
The steady oil return of rodless cavity oil circuit, and during auxiliary varied angle, immediately opened by bidirectional locking valve and
Close, form the regulation of oil cylinder position trace, play and steadily act on easily.
In one embodiment, during each bidirectional locking valve and each reversal valve 4 are integrated in a valve block 7.Such as
One reversal valve 4 and bidirectional locking valve can be carried out chip valve block integrated, according to additional hydraulic miscellaneous function system
The quantity of system selects the quantity of integrated valve block to install and use, and i.e. can be used alone and also can multiple-piece installation make
With.As such, it is possible to reduce the use of pipeline, simplify pipeline and connect, the most cost-effective.
Specifically, valve block 7 has oil inlet P 1, oil inlet P 2 and an oil return inlet T, the one of valve block 7
Individual oil inlet P 1 connects the oil-in 43 of reversal valve 4 on the 3rd oil circuit, another oil inlet P 2 of valve block 7
Connect the oil-in 43 of reversal valve 4 on the first oil circuit and the second oil circuit, the oil return inlet T of valve block 7 with respectively change
Connect to the oil return opening 44 of valve 4.This embodiment mainly considers the load of auxiliary varied angle oil cylinder 3 relatively
Greatly, the input pressure of auxiliary varied angle oil cylinder 3 installs oil cylinder 1, auxiliary oil cylinder with pin 2 greatly than auxiliary, because of
An oil inlet P 1 individually offered by this auxiliary varied angle oil cylinder 3.But, due to auxiliary install oil cylinder 1,
Auxiliary oil cylinder with pin 2 and auxiliary varied angle oil cylinder 3 all have respective bidirectional locking valve, therefore, respective
Oil return will not interfere, and is therefore integrated in an oil return inlet T by the oil return opening of three.
This utility model also provides for a kind of auxiliary hydraulic assembly, and it includes that auxiliary controls loop, described auxiliary control
Loop processed is that the auxiliary described in the various embodiments described above controls loop.
This utility model also provides for a kind of crane, and including auxiliary hydraulic assembly, described auxiliary hydraulic assembly is
Auxiliary hydraulic assembly described in above-described embodiment.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, rather than
It is limited.It will be understood by those within the art that: can be to the skill described in foregoing embodiments
Art scheme is modified, or wherein portion of techniques feature is carried out equivalent；These amendments or replacement,
The essence not making appropriate technical solution departs from the spirit and scope of this utility model each embodiment technical scheme.
Claims (9)
1. auxiliary controls a loop, including the first oil circuit and the use of installing oil cylinder (1) for controlling auxiliary
In the second oil circuit controlling auxiliary oil cylinder with pin (2), it is characterised in that described first oil circuit and/or second
Oil circuit is provided with bidirectional locking valve, and two oil-ins of described bidirectional locking valve connect described auxiliary respectively and control
The oil-in in loop and oil return opening, two oil-outs of described bidirectional locking valve connect described auxiliary respectively and install
Oil cylinder (1) and/or the rod chamber of auxiliary oil cylinder with pin (2) and rodless cavity.
2. auxiliary as claimed in claim 1 controls loop, it is characterised in that also include for controlling pair
3rd oil circuit of arm varied angle oil cylinder (3), described 3rd oil circuit is provided with bidirectional locking valve, this reversible lock
Only two oil-ins of valve connect oil-in and the oil return opening in described auxiliary control loop respectively, and two go out
Hydraulic fluid port connects rod chamber and the rodless cavity of described auxiliary varied angle oil cylinder (3) respectively.
3. auxiliary as claimed in claim 1 or 2 controls loop, it is characterised in that include reversal valve (4),
Described reversal valve (4), described reversal valve it is respectively provided with on described first oil circuit, the second oil circuit and the 3rd oil circuit
(4) oil-in (43) and oil return opening (44) connect respectively described auxiliary control loop oil-in and
Oil return opening, connect described bidirectional locking valve respectively two enter two actuator ports of described reversal valve (4)
Hydraulic fluid port.
4. auxiliary as claimed in claim 3 controls loop, it is characterised in that described bidirectional locking valve bag
Including the first check valve (5) and the second check valve (6), described first check valve (5) is connected to described commutation
Between first actuator port (41) and the described rodless cavity of valve (4), described second check valve (6) connects
Between the second actuator port (42) and the described rod chamber of described reversal valve (4), described reversal valve (4)
There is under the external world's driving effect primary importance, the second position and the 3rd position, in described primary importance, institute
The oil-in stating reversal valve (4) is closed, in the described second position, described reversal valve (4)
Oil-in is in open mode, described auxiliary control the oil-in in loop, the first of described reversal valve (4)
Actuator port (41), described first check valve (5) and described rodless cavity are sequentially connected the logical auxiliary that formed and control
The oil-feed oil circuit in loop, the of described rod chamber, described second check valve (6) and described reversal valve (4)
Two actuator ports (42) are sequentially connected the logical auxiliary that formed and control the oil return circuit in loop.
5. the auxiliary described in claim 4 controls loop, it is characterised in that described first check valve (5)
It is hydraulic control one-way valve with two check valves (6), changes described in the oil circuit control connection of described first check valve (5)
To the commutation the second actuator port (42) of valve (4), the oil circuit control of described second check valve (6) connects
First actuator port (42) of described reversal valve (4).
6. auxiliary as claimed in claim 3 controls loop, it is characterised in that each described bidirectional locking valve
It is integrated in a valve block (7) with each reversal valve (4).
7. auxiliary as claimed in claim 6 controls loop, it is characterised in that described valve block (7) has
Two oil-ins (P1, P2) and an oil return opening (T), an oil-in (P1) of described valve block connects
The oil-in (43) of reversal valve (4) on 3rd oil circuit, another oil-in (P2) of described valve block connects
The oil-in (43) of reversal valve (4) on first oil circuit and the second oil circuit, the oil return opening of described valve block (7)
(T) it is connected with the oil return opening (44) of each reversal valve (4).
8. an auxiliary hydraulic assembly, it includes that auxiliary controls loop, it is characterised in that described auxiliary control
Loop processed is that the auxiliary according to any one of claim 1 to 7 controls loop.
9. a crane, including auxiliary hydraulic assembly, it is characterised in that described auxiliary hydraulic assembly is
Auxiliary hydraulic assembly described in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620469987.6U CN205772912U (en) | 2016-05-20 | 2016-05-20 | A kind of auxiliary controls loop and has its auxiliary hydraulic assembly and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620469987.6U CN205772912U (en) | 2016-05-20 | 2016-05-20 | A kind of auxiliary controls loop and has its auxiliary hydraulic assembly and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205772912U true CN205772912U (en) | 2016-12-07 |
Family
ID=58114523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620469987.6U Active CN205772912U (en) | 2016-05-20 | 2016-05-20 | A kind of auxiliary controls loop and has its auxiliary hydraulic assembly and crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205772912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114735629A (en) * | 2022-03-24 | 2022-07-12 | 中联恒通机械有限公司 | Protection control system and method for aerial work platform |
-
2016
- 2016-05-20 CN CN201620469987.6U patent/CN205772912U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114735629A (en) * | 2022-03-24 | 2022-07-12 | 中联恒通机械有限公司 | Protection control system and method for aerial work platform |
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Effective date of registration: 20201013 Address after: No.202 Xuanfu street, Xuanhua District, Zhangjiakou, Hebei Province Patentee after: Hebei Leisa Heavy Construction Machinery Co., Ltd Address before: 102206 Changping District City, Shahe, Sha Yang Road, Beijing Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |