CN208997055U - A kind of Feedback Oil accurate positioning stabilization control device of hydraulic cylinder - Google Patents
A kind of Feedback Oil accurate positioning stabilization control device of hydraulic cylinder Download PDFInfo
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- CN208997055U CN208997055U CN201821389350.1U CN201821389350U CN208997055U CN 208997055 U CN208997055 U CN 208997055U CN 201821389350 U CN201821389350 U CN 201821389350U CN 208997055 U CN208997055 U CN 208997055U
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- 230000006641 stabilisation Effects 0.000 title claims abstract description 18
- 238000011105 stabilization Methods 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 230000008859 change Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 16
- 239000003921 oil Substances 0.000 description 250
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000010727 cylinder oil Substances 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
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Abstract
The Feedback Oil that the utility model provides a kind of hydraulic cylinder is accurately positioned stabilization control device, comprising: pressure oil-source, charged piston cylinder, pressure charging valve, executes oil cylinder, oil pressure detection module, controller module and accumulator at directional control valve；Pressure oil-source is connect with directional control valve, accumulator, is executed oil cylinder and is connect with directional control valve, pressure charging valve, charged piston cylinder is connect with pressure charging valve, accumulator；Oil pressure detection module is connect with 2 oil pockets for executing oil cylinder, detects its oil pressure situation of change respectively；Controller module controls pressure charging valve and realizes that executing the first working oil chamber of oil cylinder or the second working oil chamber is pressurized according to actual job operating condition.Technical solution provided by the utility model can be realized the hydraulic reversed jitter phenomenon being quickly accurately positioned and effectively prevent during being accurately positioned for executing oil cylinder.
Description
Technical field
The utility model relates to mechanical equipment hydraulic cylinder control technology fields, more particularly, to a kind of oil of hydraulic cylinder
Reaction type is pressed to be accurately positioned stabilization control device.
Background technique
With the high speed development of national economy, mechanical equipment industry development is swift and violent, and the good ring of executing agency's runnability
Directly influence the performance and safety of mechanical equipment.It is held currently, a large amount of mechanical equipment all uses hydraulic execution oil cylinder driving
Row mechanism works, i.e., goes the every operation for realizing executing agency living using the hydraulic oil cylinder that executes of the pressure-driven of hydraulic oil
It is dynamic.
In the prior art, the positioning braking process of mechanical equipment hydraulic cylinder actuators mainly passes through directional control valve
When Hui Zhongwei, the hydraulic oil back chamber oil circuit for executing oil cylinder is closed, and executing agency is since inertia also will continue to movement of taking advantage of a situation, so that liquid
The oil back chamber oil pressure that pressure executes oil cylinder increases and produces plugging power, to realize the positioning braking of executing agency.?
That is executing agency be using it is hydraulic execute oil cylinder oil back chamber back pressure braked, back pressure be by hydraulic execution oil cylinder after
Reforwarding is dynamic and generates, and back pressure value needs the time greatly from small rise to, so as to cause hydraulic cylinder actuators positioning inaccurately, make
It moves not in time.Meanwhile when the speed of service of executing agency is braked to zero, at this time it is hydraulic execute oil cylinder two working oil chambers it
Between oil pressure difference it is still very big, prevent hydraulic cylinder actuators are from stop motion immediately, but carried out reversed shake.Hydraulic
In the positioning braking process of cylinder executing agency, this reversed jitter phenomenon can generally repeat repeatedly, so as to cause the machine of execution
Structure runs unstable in positioning braking process, has seriously affected the performance and operating efficiency of equipment, also to equipment operation and work
Journey construction brings very big security risk.Therefore, inaccurate for the positioning of hydraulic cylinder actuators, braking is too late
When, and there is the phenomenon that reversed shake in positioning braking process, there is an urgent need to find a kind of technology to can be realized hydraulic execution
The quick positioning of oil cylinder brakes and effectively prevent quickly positioning the reversed jitter phenomenon in braking process.
Summary of the invention
In order to solve above-mentioned technical problem present in existing hydraulic cylinder actuators positioning braking process, the utility model
The Feedback Oil for providing a kind of hydraulic cylinder is accurately positioned stabilization control device, it is intended to realize the quick fixed of hydraulic execution oil cylinder
It brakes and effectively prevent quickly positioning the reversed jitter phenomenon in braking process in position.
In order to achieve the above object, the utility model adopts the technical scheme that
The hydraulic Feedback Oil for executing oil cylinder of mechanical equipment is accurately positioned stabilization control device, comprising: pressure oil-source, side
To control valve, charged piston cylinder, pressure charging valve, execution oil cylinder, oil pressure detection module, controller module and accumulator etc.；Wherein, institute
The high pressure oil for stating pressure oil-source offer is connected to the high pressure oil oil inlet of the directional control valve, the oil liquid of the directional control valve
Oil return opening is connected to oil return line, and 2 actuator ports of the directional control valve and 2 working oil chambers for executing oil cylinder are distinguished
Connection；The high pressure oil that the pressure oil-source provides also is connected to the accumulator, the accumulator and the charged piston cylinder
It is pressurized rodless cavity connection, the pressurization rod chamber of the charged piston cylinder is connected to the supercharging oil inlet of the pressure charging valve, the increasing
2 actuator ports of pressure valve are also respectively communicated with 2 working oil chambers for executing oil cylinder, and the pressure charging valve is used for the execution
The first working oil chamber or the second working oil chamber of oil cylinder are connected to or cut off with the pressurization rod chamber of the charged piston cylinder, the increasing
Pressure piston cylinder is used to the oil liquid pressure of the accumulator carrying out raising pressurization；The oil pressure detection module and the execution oil cylinder
2 working oil chambers be separately connected, the oil pressure detection module is used to detect 2 working oil chambers for executing oil cylinder respectively
Oil pressure condition；The controller module is connect with the directional control valve, pressure charging valve and oil pressure detection module, the controller mould
Block can be according to the control for brake information of the directional control valve and the oil pressure change information of the oil pressure detection module, by cutting
The working condition of the pressure charging valve is changed, first working oil chamber for executing oil cylinder or the second working oil chamber and the pressurization are controlled
The pressurization rod chamber of piston cylinder is connected to or cutting, to realize that the quick accurate positioning of hydraulic cylinder actuators is braked and effectively prevented
The reversed jitter phenomenon being only quickly accurately positioned in braking process.
In the above-mentioned technical solutions, it is preferable that manual release ball valve and safety are additionally provided on the oil circuit of the accumulator
Overflow valve, the manual release ball valve are used to carry out the oil circuit manual release, and the safety overflow valve is used to set the oil circuit
Safe pressure；Be additionally provided with check valve between the pressure oil-source and the accumulator, the entrance of the check valve with it is described
Pressure oil-source connection, the outlet of the check valve is connected to the accumulator.
In the above-mentioned technical solutions, it is preferable that the oil pressure detection module includes first pressure sensor and second pressure
Sensor, the first pressure sensor and second pressure sensor are respectively arranged at first working oil chamber for executing oil cylinder
With the second working oil chamber.
In the above-mentioned technical solutions, it is preferable that the pressure charging valve is 3-position-3-way solenoid directional control valve, the of the pressure charging valve
One working condition by it is described execute oil cylinder the first working oil chamber be connected to the pressurization rod chamber of the charged piston cylinder, second
The pressurization rod chamber of working oil chamber and the charged piston cylinder is cut off；The second working condition of the pressure charging valve is by the execution
Second working oil chamber of oil cylinder is connected to the pressurization rod chamber of the charged piston cylinder, the first working oil chamber and the charged piston
The pressurization rod chamber of cylinder is cut off；The middle position state of the pressure charging valve works first working oil chamber for executing oil cylinder and second
Oil pocket is all cut off with the pressurization rod chamber of the charged piston cylinder.
In the above-mentioned technical solutions, it is preferable that the directional control valve is three-position four-way electromagnetic directional valve, the direction control
First working condition and second working condition of valve processed control execution oil cylinder driving executing agency respectively and carry out to the right
With move downward；The directional control valve controls the execution oil cylinder and carries out positioning braking in middle position state.
In the above-mentioned technical solutions, it is preferable that positioning braking process of the controller module in hydraulic cylinder actuators
The middle brake signal for being switched to middle position state by first working condition or second working condition according to the directional control valve
The pressure charging valve is immediately controlled the pressurization rod chamber of back pressure the braking oil pocket and the charged piston cylinder for executing oil cylinder is short
Shi Liantong is pressurized to highest oil pressure, so that the braking moment of hydraulic cylinder actuators reaches maximum, realizes fast braking；When hydraulic
The movement velocity of cylinder executing agency is quickly positioned braking to zero, when heterodromous jitter phenomenon will occur, the control
The oil pressure for the execution oil cylinder back pressure braking oil pocket that device module is detected according to the oil pressure detection module immediately declines conduct
Signal come control the pressure charging valve by it is described execute oil cylinder another working oil chamber and the charged piston cylinder pressurization rod chamber
Also connection is pressurized to highest oil pressure in short-term so that the oil pressure poor moment of 2 working oil chambers for executing oil cylinder be reduced to it is close
In zero, the heterodromous driving moment of the execution oil cylinder substantially reduces, to realize the quick accurate of hydraulic cylinder actuators
Positioning brakes and effectively prevent the reversed jitter phenomenon being quickly accurately positioned in braking process.
Have significant of technical solution provided by the utility model the utility model has the advantages that
During hydraulic cylinder actuators carry out positioning braking, when hydraulic cylinder actuators are switched to by operating status
The starting point braked, the controller module are immediately controlled the pressure charging valve and the back pressure for executing oil cylinder are braked oil pocket
It is connected in short-term with the pressurization rod chamber of the charged piston cylinder, the charged piston cylinder is used for the oil liquid pressure of the accumulator
Raising pressurization is carried out, so that the oil pressure for executing oil cylinder back pressure braking oil pocket is set as highest immediately, braking moment reaches most
Greatly, the quick positioning braking of hydraulic cylinder actuators is effectively realized；
When hydraulic cylinder actuators movement velocity by fast braking to zero, heterodromous jitter phenomenon will occur
When, the oil pressure that the oil pressure detection module is immediately detected the execution oil cylinder back pressure braking oil pocket is declining, and as
Signal passes to the controller module, and signal controls rapidly the pressure charging valve and executes oil for described the controller module according to this
Another working oil chamber of cylinder is connected in short-term with the pressurization rod chamber of the charged piston cylinder, another working oil chamber of the execution oil cylinder
Oil pressure be also set as highest immediately, the oil pressure of 2 working oil chambers for executing oil cylinder poor moment is reduced to close to zero, makes
It obtains the hydraulic cylinder actuators and just significantly loses heterodromous driving moment in the initial stage for occurring reversely shaking, from
And the quick accurate positioning for realizing hydraulic cylinder actuators brakes and effectively prevents quickly being accurately positioned in braking process
Reversed jitter phenomenon.
Detailed description of the invention
Fig. 1 is that the Feedback Oil of hydraulic cylinder described in the utility model is accurately positioned stabilization control device structure diagram.
Fig. 2 is that the Feedback Oil of hydraulic cylinder described in the utility model is accurately positioned stabilization control device control block diagram.
Corresponding relationship in figure between appended drawing reference and component names are as follows:
1- pressure oil-source；
2- directional control valve, 201- high pressure oil oil inlet, the first actuator port of 202-, the second actuator port of 203-, 204-
Oil liquid oil return opening, first working condition of 21-, 22- second working condition, position state in 23-；
3- charged piston cylinder, 31- are pressurized rodless cavity, and 32- is pressurized rod chamber；
4- pressure charging valve, 401- supercharging oil inlet, the first actuator port of 402-, the second actuator port of 403-, first work of 41-
Make state, 42- second working condition, position state in 43-；
5- executes oil cylinder, the first working oil chamber of 51-, the second working oil chamber of 52-；
6- oil pressure detection module, 61- first pressure sensor, 62- second pressure sensor；
7- controller module；
8- accumulator；
The manual release ball valve of 9-；
10- safety overflow valve；
11- check valve.
Specific embodiment
In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have
The utility model is further described in detail in body embodiment.
Many details are explained in the following description in order to fully understand the utility model, still, this is practical
It is novel to be implemented using other modes described herein are different from, therefore, the protection scope of the utility model not by
The limitation of following public specific embodiment.
Fig. 1 is that the Feedback Oil of hydraulic cylinder described in the utility model is accurately positioned stabilization control device structure diagram；Fig. 2
Stabilization control device control block diagram is accurately positioned for the Feedback Oil of hydraulic cylinder described in the utility model.
Prevent as shown in Figure 1, the Feedback Oil of the hydraulic execution oil cylinder of embodiment according to the present utility model is accurately positioned
Tremble control device, comprising: pressure oil-source 1, charged piston cylinder 3, pressure charging valve 4, executes oil cylinder 5, oil pressure detection at directional control valve 2
Module 6, controller module 7 and accumulator 8 etc.；The high pressure oil that pressure oil-source 1 provides be connected to the high pressure oil of directional control valve 2 into
The oil liquid oil return opening 204 of hydraulic fluid port 201, directional control valve 2 is connected to oil return line, the first actuator port 202 of directional control valve 2 with
Execute the first working oil chamber 51 connection of oil cylinder 5, the second actuator port 203 of directional control valve 2 and the second work for executing oil cylinder 5
Make the connection of oil pocket 52；The high pressure oil that pressure oil-source 1 provides also is connected to accumulator 8, the pressurization of accumulator 8 and charged piston cylinder 3
Rodless cavity 31 is connected to, and the pressurization rod chamber 32 of charged piston cylinder 3 is connected to the supercharging oil inlet 401 of pressure charging valve 4, pressure charging valve 4
First actuator port 402 is connected to the first working oil chamber 51 for executing oil cylinder 5, the second actuator port 403 and the execution of pressure charging valve 4
Second working oil chamber 52 of oil cylinder 5 is connected to, and pressure charging valve 4 is used to execute the first working oil chamber 51 or the second working oil chamber of oil cylinder 5
52 are connected to or cut off with the pressurization rod chamber 32 of charged piston cylinder 3, charged piston cylinder 3 be used for by the oil liquid pressure of accumulator 8 into
Row increases pressurization；Oil pressure detection module 6 includes first pressure sensor 61 and second pressure sensor 62, first pressure sensor
61 connect with the first working oil chamber 51 for executing oil cylinder 5, second pressure sensor 62 and the second working oil chamber 52 for executing oil cylinder 5
Connection, first pressure sensor 61 are used to detect the oil pressure condition for the first working oil chamber 51 for executing oil cylinder 5, second pressure sensing
Device 62 is used to detect the oil pressure condition for the second working oil chamber 52 for executing oil cylinder 5；Controller module 7 and directional control valve 2, pressurization
Valve 4 and oil pressure detection module 6 connect, and the control for brake situation for executing oil cylinder 5 is passed to controller module 7 by directional control valve 2,
Oil pressure detection module 6 will execute the first work of oil cylinder 5 detected by first pressure sensor 61 and second pressure sensor 62
The oil pressure situation of change for making oil pocket 51 and the second working oil chamber 52 is also passed to controller module 7, and controller module 7 being capable of basis
The control for brake information of directional control valve 2 and the oil pressure change information of oil pressure detection module 6, by the work for switching pressure charging valve 4
State, so that controlling the pressurization of the first working oil chamber 51 for executing oil cylinder 5 or the second working oil chamber 52 and charged piston cylinder 3 has bar
The connection of chamber 32 or cutting, the final quick accurate positioning for realizing hydraulic cylinder actuators brake and effectively prevent quickly being accurately positioned
Reversed jitter phenomenon in braking process.
In the present embodiment, manual release ball valve 9 and safety overflow valve 10 are additionally provided on the oil circuit of accumulator 8, manually
Release ball valve 9 is used to carry out the oil circuit manual release, and safety overflow valve 10 is used to set safe pressure (this implementation of the oil circuit
Example is 10MPa)；Check valve 11 is additionally provided between pressure oil-source 1 and accumulator 8, the entrance and pressure oil-source 1 of check valve 11 connect
Logical, the outlet of check valve 11 is connected to accumulator 8, and check valve 11 is for guaranteeing that pressure oil-source 1 can only unidirectionally be supplied to accumulator 8
Oil.
In the present embodiment, pressure charging valve 4 is the 3-position-3-way solenoid directional control valve of O-shaped function, first work of pressure charging valve 4
State 41 by execute oil cylinder 5 the first working oil chamber 51 be connected to the pressurization rod chamber 32 of charged piston cylinder 3, the second working oil chamber
52 cut off with the pressurization rod chamber 32 of charged piston cylinder 3；The second working condition 42 of pressure charging valve 4 will execute the second of oil cylinder 5
Working oil chamber 52 is connected to the pressurization rod chamber 32 of charged piston cylinder 3, the pressurization of the first working oil chamber 51 and charged piston cylinder 3 has
Rod cavity 32 is cut off；The middle position state 43 of pressure charging valve 4 by execute oil cylinder 5 the first working oil chamber 51 and the second working oil chamber 52 all with
The pressurization rod chamber 32 of charged piston cylinder 3 is cut off.
In the present embodiment, directional control valve 2 is the three-position four-way electromagnetic directional valve of O-shaped function, when directional control valve 2 exists
When first working condition 21, the high pressure oil that pressure oil-source 1 provides enters the first working oil chamber 51 driving execution for executing oil cylinder 5
Mechanism is moved right；When directional control valve 2 is in second working condition 22, the high pressure oil that pressure oil-source 1 provides enters
The the second working oil chamber 52 driving executing agency for executing oil cylinder 5 is moved downward；When directional control valve 2 is in middle position state 23
When, the oil circuit for executing two working oil chambers of oil cylinder 5 is closed, and executes oil cylinder 5 and executing agency is driven to be braked.
In the present embodiment, charged piston cylinder 3 is using pressurization rodless cavity 31 and to be pressurized the work of rod chamber 32 between the two
It is not pressurized not etc. with area, is pressurized calculation formula:
P31×A31=P32×A32
In formula: P31For the pressure value for being pressurized rodless cavity 31；A31For the active area for being pressurized rodless cavity 31；P32Have for pressurization
The pressure value of rod cavity 32；A32For the active area for being pressurized rod chamber 32.
It is pressurized the active area A of rod chamber 3232Less than the active area A of pressurization rodless cavity 3131, have so as to cause pressurization
The pressure value P of rod cavity 3232Greater than the pressure value P of pressurization rodless cavity 3131, and being pressurized rodless cavity 31 is connected to accumulator 8, i.e.,
The pressurization rod chamber 32 of charged piston cylinder 3 can be realized the pressurization to 8 oil liquid pressure of accumulator.The practical pressurization of charged piston cylinder 3
Size depend on pressurization rodless cavity 31 and be pressurized rod chamber 32 active area ratio A31/ A32(the present embodiment charged piston
The A of cylinder 331/ A32Be 4/1, the oil liquid pressure of accumulator 8 can be amplified to 4 times, due to accumulator 8 oil liquid pressure by
Safety overflow valve 10 is set as 8MPa, then the pressurized oil liquid pressure of pressurization rod chamber 32 of charged piston cylinder 3 reaches 32MPa).
In the present embodiment, when execution oil cylinder 5 drives executing agency to carry out positioning braking in the state of moving right,
The second working oil chamber 52 for executing oil cylinder 5 is back pressure oil pocket；Drive executing agency in the state of moving downward when executing oil cylinder 5
When carrying out positioning braking, the first working oil chamber 51 for executing oil cylinder 5 is back pressure oil pocket.
In the present embodiment, oil pressure when only carrying out control for brake under the state that moves right with hydraulic cylinder actuators is anti-
Feedback formula is described in detail for being accurately positioned stabilization control process, but the utility model is not limited thereto, this is practical new
Type can be used for hydraulic cylinder actuators and carry out positioning braking stabilization control under motion state in any direction.
When directional control valve 2 is in first working condition 21, pressure charging valve 4 is in middle position state 43, pressure oil-source 1
High pressure oil is entered by the high pressure oil oil inlet 201 and the first actuator port 202 of directional control valve 2 and executes the first of oil cylinder 5
Working oil chamber 51 drives executing agency to be moved right, and the oil liquid for executing the second working oil chamber 52 of oil cylinder 5 is controlled by direction
The second actuator port 203 and oil liquid oil return opening 204 of valve 2 processed complete oil return.
When execution oil cylinder 5 drives executing agency to carry out positioning braking, directional control valve 2 is cut by first working condition 21
Middle position state 23 is changed to, the first actuator port 202 and the second actuator port 203 are all cut off, and execute the first working oil of oil cylinder 4
Chamber 51 and the second working oil chamber 52 are all respectively formed closing chamber, but executing agency also will continue to move right due to inertia, execute
Mechanism carries out positioning braking and needs first to generate the braking moment of reversed (to the left) just can be carried out braking, and braking moment size depends on
Execute oil cylinder 5 the second working oil chamber 52(, that is, back pressure oil pocket) oil pressure size.Therefore, (the i.e. hydraulic cylinder at this time of controller module 7
Executing agency is switched to the starting point braked by operating status) it pressure charging valve 4 is immediately controlled is switched to second working condition
42 a period of times (the present embodiment is about 0.1 second) will execute the second working oil chamber 52(, that is, back pressure oil pocket of oil cylinder 5) it lives with pressurization
The pressurization rod chamber 32 of plug cylinder 3 is connected in short-term, (is increased in the present embodiment since charged piston cylinder 3 is pressurized accumulator 8
The pressurized oil liquid pressure of pressurization rod chamber 32 for pressing piston cylinder 3 is about 32MPa) so that executing the second work of oil cylinder 5
Oil pocket 52(, that is, back pressure oil pocket) oil pressure be set as peak (the present embodiment is about 32MPa) immediately, carry out positioning braking system
Kinetic moment moment has reached maximum, effectively realizes the quick positioning braking of hydraulic cylinder actuators.
When the movement velocity of hydraulic cylinder actuators is reduced to zero by fast braking, due to executing the of oil cylinder 5 at this time
The oil pressure of two working oil chambers 52 very high (the present embodiment is about 32MPa), the oil pressure of the first working oil chamber 51 are lower, i.e. execution oil cylinder
Oil pressure difference between 5 the second working oil chamber 52 and the first working oil chamber 51 is very big, and executing agency will can be in oil pressure difference institute
Counter motion is carried out under the action of the opposing torque of generation；It drives executing agency counter motion occur once executing oil cylinder 5, then holds
The second working oil chamber 52(, that is, back pressure oil pocket of row oil cylinder 5) oil pressure will decline immediately, the second pressure of oil pressure detection module 6
Sensor 62 will quickly detect the second working oil chamber 52(i.e. back pressure oil pocket) oil pressure declining, and by its oil pressure decline make
Controller module 7 is passed to for signal, and signal controls rapidly pressure charging valve 4 and is switched to first work shape controller module 7 according to this
41 a period of time (the present embodiment is about 0.08 second) of state will execute the increasing of the first working oil chamber 51 and charged piston cylinder 3 of oil cylinder 5
It is pressed with rod cavity 32 to be connected in short-term, the oil pressure for executing the first working oil chamber 51 of oil cylinder 5 is also set as peak (the present embodiment immediately
About 32MPa), execute oil cylinder 5 the second working oil chamber 52 and the first working oil chamber 51 oil pressure difference moment be reduced to close to
Zero (i.e. also moment is reduced to close to zero opposing torque caused by oil pressure difference), so that the hydraulic cylinder actuators are going out
The initial stage now reversely shaken just significantly loses heterodromous driving moment, and the amplitude reversely shaken obviously is pressed down
System；Process according to this, as shown in Fig. 2, carrying out Feedback Oil is accurately positioned stabilization control 1 time or multiple (the present embodiment is 1 time),
It then may make the hydraulic cylinder actuators can be realized quickly to be accurately positioned to brake and can effectively prevent quickly to be accurately positioned braking
Reversed jitter phenomenon in the process.
The only preferred embodiment of the utility model, is not intended to limit the utility model, for the skill of this field
For art personnel, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model, made
Any modification, equivalent substitution, improvement and etc., should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of Feedback Oil of hydraulic cylinder is accurately positioned stabilization control device characterized by comprising pressure oil-source (1),
Directional control valve (2), pressure charging valve (4), executes oil cylinder (5), oil pressure detection module (6), controller module at charged piston cylinder (3)
(7) and accumulator (8)；
The high pressure oil that the pressure oil-source (1) provides is connected to the high pressure oil oil inlet (201) of the directional control valve (2), institute
The oil liquid oil return opening (204) for stating directional control valve (2) is connected to oil return line, 2 actuator ports of the directional control valve (2) with
2 working oil chambers for executing oil cylinder (5) are respectively communicated with；
The high pressure oil that the pressure oil-source (1) provides also is connected to the accumulator (8), the accumulator (8) and the pressurization
The pressurization rodless cavity (31) of piston cylinder (3) is connected to, the pressurization rod chamber (32) and the pressure charging valve of the charged piston cylinder (3)
(4) supercharging oil inlet (401) connection, 2 actuator ports of the pressure charging valve (4) also with it is described execute oil cylinder (5) 2 works
It is respectively communicated with as oil pocket, the pressure charging valve (4) is for first working oil chamber (51) or the second working oil for executing oil cylinder (5)
Chamber (52) is connected to or cuts off with the pressurization rod chamber (32) of the charged piston cylinder (3), and the charged piston cylinder (3) is used for institute
The oil liquid pressure for stating accumulator (8) carries out raising pressurization；
The oil pressure detection module (6) is separately connected with 2 working oil chambers for executing oil cylinder (5), and the oil pressure detects mould
Block (6) is used to detect the oil pressure condition of 2 working oil chambers for executing oil cylinder (5) respectively；
The controller module (7) connect with the directional control valve (2), pressure charging valve (4) and oil pressure detection module (6), described
Controller module (7) can be according to the control for brake information of the directional control valve (2) and the oil of the oil pressure detection module (6)
Change information is pressed, by switching the working condition of the pressure charging valve (4), controls first working oil chamber for executing oil cylinder (5)
(51) or the second working oil chamber (52) is connected to or cuts off with the pressurization rod chamber (32) of the charged piston cylinder (3), to realize
Quick be accurately positioned of hydraulic cylinder actuators brakes and effectively prevent the reversed shake being quickly accurately positioned in braking process existing
As.
2. the Feedback Oil of hydraulic cylinder according to claim 1 is accurately positioned stabilization control device, which is characterized in that institute
It states and is provided with manual release ball valve (9) and safety overflow valve (10) on the oil circuit of accumulator (8)；The pressure oil-source (1) and institute
It states and is provided between accumulator (8) check valve (11), the entrance of the check valve (11) is connected to the pressure oil-source (1), institute
The outlet for stating check valve (11) is connected to the accumulator (8).
3. according to claim 1 or the Feedback Oil of hydraulic cylinder as claimed in claim 2 is accurately positioned stabilization control device,
It being characterized in that, the oil pressure detection module (6) includes first pressure sensor (61) and second pressure sensor (62), and described
One pressure sensor (61) and second pressure sensor (62) are respectively arranged at first working oil chamber for executing oil cylinder (5)
(51) and the second working oil chamber (52).
4. according to claim 1 or the Feedback Oil of hydraulic cylinder as claimed in claim 2 is accurately positioned stabilization control device,
It is characterized in that, the pressure charging valve (4) is 3-position-3-way solenoid directional control valve, first working condition (41) of the pressure charging valve (4)
First working oil chamber (51) for executing oil cylinder (5) is connected to the pressurization rod chamber (32) of the charged piston cylinder (3), the
Two working oil chambers (52) and the pressurization rod chamber (32) of the charged piston cylinder (3) are cut off；The second work of the pressure charging valve (4)
Make state (42) for the pressurization rod chamber of second working oil chamber (52) for executing oil cylinder (5) and the charged piston cylinder (3)
(32) the pressurization rod chamber (32) of connection, the first working oil chamber (51) and the charged piston cylinder (3) is cut off；The pressure charging valve
(4) middle position state (43) by it is described execute oil cylinder (5) the first working oil chamber (51) and the second working oil chamber (52) all with institute
State pressurization rod chamber (32) cutting of charged piston cylinder (3).
5. according to claim 1 or a kind of Feedback Oil of hydraulic cylinder as claimed in claim 2 is accurately positioned stabilization control dress
Set, which is characterized in that the directional control valve (2) be three-position four-way electromagnetic directional valve, first of the directional control valve (2)
Working condition (21) and second working condition (22) control respectively the execution oil cylinder (5) driving executing agency carry out to the right and
It moves downward；The directional control valve (2) controls the execution oil cylinder (5) and carries out positioning braking at middle position state (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821389350.1U CN208997055U (en) | 2018-08-28 | 2018-08-28 | A kind of Feedback Oil accurate positioning stabilization control device of hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821389350.1U CN208997055U (en) | 2018-08-28 | 2018-08-28 | A kind of Feedback Oil accurate positioning stabilization control device of hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208997055U true CN208997055U (en) | 2019-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821389350.1U Expired - Fee Related CN208997055U (en) | 2018-08-28 | 2018-08-28 | A kind of Feedback Oil accurate positioning stabilization control device of hydraulic cylinder |
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| CN (1) | CN208997055U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895049A (en) * | 2018-08-28 | 2018-11-27 | 长沙学院 | A kind of Feedback Oil accurate positioning stabilization control device and method of hydraulic cylinder |
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2018
- 2018-08-28 CN CN201821389350.1U patent/CN208997055U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895049A (en) * | 2018-08-28 | 2018-11-27 | 长沙学院 | A kind of Feedback Oil accurate positioning stabilization control device and method of hydraulic cylinder |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190618 |