CN202251171U - Motion control device of cylinders in series - Google Patents
Motion control device of cylinders in series Download PDFInfo
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- CN202251171U CN202251171U CN201120330272XU CN201120330272U CN202251171U CN 202251171 U CN202251171 U CN 202251171U CN 201120330272X U CN201120330272X U CN 201120330272XU CN 201120330272 U CN201120330272 U CN 201120330272U CN 202251171 U CN202251171 U CN 202251171U
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Abstract
The utility model provides a motion control device of cylinders in series, which comprises an oil tank oil pump module, a reversing oil supplying module, a reversing module and the cylinders in series. The reversing oil supplying module is used for supplying or returning oil in forward or crossed direction and is connected with the oil tank oil pump module to receive supplied oil of the oil tank oil pump module. The reversing module is used for switching oil ways in forward or crossed direction and is connected with the reversing oil supplying module to receive the supplied oil of the reversing oil supplying module. The cylinders in series are connected with the reversing module to receive supplied oil of the reversing module and comprise a first cylinder and a second cylinder which are in series. The motion control device of the cylinders in series can achieve separate control of the cylinders in series, supplements oil in due time, and has a simple structure.
Description
Technical field
The utility model relates to a kind of oil cylinder control gear, particularly relates to a kind of serial oil cylinders motion control device.
Background technique
In engineering machinery field, through regular meeting with the use that is together in series of two oil cylinders, such as the master cylinder in the concrete pumping machinery; But in the process of using,, can cause oil mass in the oil cylinder series connection cavity to reduce and sneak into residual air owing to reason such as rushing down in valve in the system or the oil cylinder; As do not take measures, can make two oil cylinder strokes inconsistent, along with the continuous growth of service time; Possibly cause oil cylinder stroke control total loss at last, in addition, traditional serial oil cylinders is under the prerequisite that oil cylinder is synchronized with the movement; Can't realize an oil cylinder single movement, another oil cylinder is locked, so attainable function ratio is limited to.
With reference to shown in Figure 1, be existing oil cylinder series connection oil circuit figure, the problem that existing this oil cylinder series connection exists is: (1) can't realize really that oil cylinder is synchronous because the air that retains in pipeline and the oil cylinder causes in the oil cylinder motion shake and creeping phenomenon taking place.(2) can occur after longer a period of time of oil cylinder work to a certain degree in let out; Or the pipeline maintenance time has hydraulic oil and in hydraulic pipe line and oil cylinder cavity, flows out; Cause serial oil cylinders inner fluid volume to reduce gradually, thereby cause the serial oil cylinders movement travel to reduce gradually.(3) cause the coupled mechanism kinematic that connects asynchronous or parallel problem such as move to occur easily.
Make the serial oil cylinders motion steadily for guaranteeing to get rid of the air that retains in the oil cylinder; The balance serial oil cylinders since in let out or problem such as hydraulic pressure of pipe line oil runs off etc. former thereby action that cause is asynchronous; Need carry out suitable repairing to the rod chamber that is interconnected in the serial oil cylinders, and eliminate the asynchronous error of motion through certain control method.Known recharging oil device comprises oil hydraulic pump, solenoid directional control valve, one-way valve, oil cylinder etc.
In order to solve the problems of the prior art; There is patented technology to disclose relevant technological scheme; Just disclose a kind of valve oil supplement method and device of serial oil cylinders like the technological scheme of application number 200510032309, solved the problem of repairing to a certain extent, but this technological scheme need be provided with more position detecting device and controller; The structure more complicated, and it can not solve problems such as independently moving and the residual gas discharge of serial oil cylinders.
In view of the foregoing, the design people borrows its technical experience of association area and abundant professional knowledge for many years, and constantly research and development improve, and through a large amount of practical proofs, have proposed the technological scheme of the serial oil cylinders motion control device of the utility model.
The model utility content
The purpose of the utility model is to provide a kind of serial oil cylinders motion control device, can realize the independent control of serial oil cylinders, and repairing in good time is simple in structure.
To achieve these goals, the utility model provides a kind of serial oil cylinders motion control device, comprising: the fuel tank fuel pump module; With forward or intersect switching-over fuel oil supply unit to fuel feeding and oil return, be connected in said fuel tank fuel pump module, receive the fuel feeding of said fuel tank fuel pump module; Switch oil circuit and be forward or intersection to inverting module, connect said switching-over fuel oil supply unit, receive the fuel feeding of said switching-over fuel oil supply unit; Serial oil cylinders connects said inverting module, receives the fuel feeding of said inverting module, and said serial oil cylinders comprises first oil cylinder and second oil cylinder of series connection.
Above-mentioned serial oil cylinders motion control device, wherein, said serial oil cylinders motion control device also comprises repairing check module, is connected between said fuel tank fuel pump module and the said serial oil cylinders.
Above-mentioned serial oil cylinders motion control device, wherein, said first oil cylinder is identical with said second oil cylinder.
Above-mentioned serial oil cylinders motion control device, wherein, said fuel tank fuel pump module comprises oil pump and fuel tank;
Said switching-over fuel oil supply unit comprises:
Total filler opening is communicated in said oil pump;
Total oil outlet is communicated in said fuel tank;
To outside fuel feeding or by first working hole and second working hole of outside oil return;
Said inverting module comprises:
Filler opening is communicated in said first working hole;
Oil outlet, said oil outlet is shut;
To outside fuel feeding or by the 3rd working hole and the 4th working hole of outside oil return;
First oil cylinder of said series connection and the series connection chamber of second oil cylinder are communicated in said the 4th working hole, and the non-series connection chamber of said first oil cylinder is communicated in said the 3rd working hole, and the non-series connection chamber of said second oil cylinder is communicated in said second working hole.
Above-mentioned serial oil cylinders motion control device, wherein, said repairing check module has inlet and outlet, and said inlet is communicated in said oil pump, and said outlet is communicated in the series connection chamber of said first oil cylinder.
Above-mentioned serial oil cylinders motion control device, wherein, said repairing check module comprises: position control valve, internal oil passages have path and open circuit two states, and the filler opening of said position control valve is said inlet; One-way valve, its oil inlet end is communicated in the oil outlet of said position control valve, and its oil outlet end is said outlet.
Above-mentioned serial oil cylinders motion control device; Wherein, Said switching-over fuel oil supply unit comprises four-way change-over valve, and its internal oil passages has forward and intersects to two kinds of switching states, and said four-way change-over valve filler opening is said total filler opening; The oil outlet of said four-way change-over valve is said total oil outlet, and two working holes of said four-way change-over valve are said first working hole and second working hole.
Above-mentioned serial oil cylinders motion control device; Wherein, said inverting module is a four-way change-over valve, and its internal oil passages has forward and intersects to two kinds of switching states; The filler opening of said four-way change-over valve is said inverting module filler opening; The oil outlet of said four-way change-over valve is said inverting module oil outlet, and for shutting state, two working holes of said four-way change-over valve are said inverting module the 3rd working hole and the 4th working hole.
Above-mentioned serial oil cylinders motion control device, wherein, said serial oil cylinders motion control device also comprises the random liquid controling element that refluxes of the fluid that prevents in the said serial oil cylinders, said liquid controling element is located between said switching-over fuel oil supply unit and the said serial oil cylinders.
Above-mentioned serial oil cylinders motion control device, wherein, said liquid controling element is a two-way hydraulic lock, said bidirectional hydraulic lock comprises: first import is communicated with said first working hole; Second import is communicated with said second working hole; First outlet, relative with said first import, said first outlet is communicated with said inverting module filler opening; Second outlet, relative with said second import, said second outlet is communicated with the non-series connection chamber of said second oil cylinder.
Above-mentioned serial oil cylinders motion control device, wherein, said liquid controling element comprises: first Pilot operated check valve, comprise first import, be communicated with said first working hole; And first the outlet, be communicated with said inverting module filler opening; Second Pilot operated check valve comprises second import, is communicated with said second working hole; And second outlet, be communicated with the non-series connection chamber of said second oil cylinder.
From the above, the serial oil cylinders motion control device of the utility model has advantage and characteristics:
1, the serial oil cylinders motion control device of the utility model utilizes the interoperation of selector valve; Realizing under the prerequisite that two serial oil cylinders are synchronized with the movement; Can realize that also an oil cylinder is done expanding-contracting action separately in the serial oil cylinders, another oil cylinder locking, thus realize multifunction.
2, the serial oil cylinders motion control device of the utility model can be realized real-time repairing in the series connection chamber that serial oil cylinders is interconnected; Avoid the variety of issue that causes because of oil starvation in the existing technology; Simultaneously can also guarantee that when oil cylinder is identical oil cylinder is synchronized with the movement; Need not devices such as position detecting device that existing technology has and controller, simple and reliable for structure.
3, the serial oil cylinders motion control device of the utility model can be got rid of the residual gas that retains in the oil cylinder, makes the serial oil cylinders motion steadily.
Description of drawings
Fig. 1 is existing oil cylinder series connection oil circuit figure;
Fig. 2 is the utility model serial oil cylinders motion control device structural representation;
Fig. 3 is that the utility model serial oil cylinders motion control device is realized oil cylinder independently moving schematic representation;
Fig. 4 is that the utility model serial oil cylinders motion control device is realized the repairing schematic representation;
Fig. 5 is that the utility model serial oil cylinders motion control device is used schematic representation.
The primary component label declaration:
1 fuel tank fuel pump module
11 oil pumps
12 fuel tanks
13 overload protection arrangements
2 switching-over fuel oil supply units
21 total filler openings
22 total oil outlets
23 first working holes
24 second working holes
3 inverting modules
31 filler openings
32 oil outlets
33 the 3rd working holes
34 the 4th working holes
41 first oil cylinders
411 series connection chambers
412 non-series connection chambers
42 second oil cylinders
421 series connection chambers
422 non-series connection chambers
5 repairing check modules
51 inlets
52 outlets
53 position control valves
54 one-way valves
6 liquid controling elements
61 first imports
62 second imports
63 first outlets
64 second outlets
Embodiment
Understand for technical characteristics, purpose and effect to the utility model have more clearly, contrast the embodiment of description of drawings the utility model, but it is merely preferred embodiment, is not used for limiting the essential scope of the utility model at present.
Please combine referring to figs. 2 to Fig. 4; Wherein Fig. 2 is the utility model serial oil cylinders motion control device structural representation, and is as shown in the figure, and the serial oil cylinders motion control device of the utility model mainly comprises: fuel tank fuel pump module 1; Be used to provide oil sources and oil return, it comprises oil pump 11 and fuel tank 12; Switching-over fuel oil supply unit 2; Have total filler opening 21, total oil outlet 22, first working hole 23 and second working hole 24; Wherein total filler opening 21 is communicated in oil pump 11, and total oil outlet 22 is communicated in fuel tank 12, the first working holes 23 and second working hole 24 is used for to outside fuel feeding or by outside oil return; Whole switching-over fuel oil supply unit 2 receives the fuel feeding of fuel tank fuel pump module 1, is mainly used in forward or intersect to outside fuel feeding or by outside oil return; Inverting module 3; Receive the fuel feeding of switching-over fuel oil supply unit 2, and make oil circuit forward and intersect between exchange, it has filler opening 31, oil outlet 32, the 3rd working hole 33 and the 4th working hole 34; Wherein filler opening 31 is communicated in first working hole 23; Oil outlet 32 is shut, and is same, and the 3rd working hole 33 and the 4th working hole 34 are used for to outside fuel feeding or by outside oil return; First oil cylinder 41 and second oil cylinder 42 of series connection; Receive the fuel feeding and the action of inverting module 3, two oil cylinders have two chambers respectively, and the chamber that wherein is cascaded is the series connection chamber; And another chamber is non-series connection chamber; The non-series connection chamber that the non-series connection chamber that the series connection chamber of two oil cylinders is communicated in the 4th working hole 34, the first oil cylinders 41 is communicated in the 3rd working hole 33, the second oil cylinders 42 is communicated in second working hole 24; In addition; Also can comprise a repairing check module 5, be communicated in fuel tank fuel pump module 1, it is in good time in the serial oil cylinders repairing to be used for; And can prevent the oily adverse current oil sump tank fuel pump module 1 in the oil cylinder; Repairing check module 5 has inlet 51 and outlet 52,51 oil pumps 11 that are communicated in the fuel tank fuel pump module 1 that wherein enter the mouth, and outlet 52 is communicated in the series connection chamber of first oil cylinder 41.
Please continue referring to figs. 2 to Fig. 4, wherein Fig. 3 is that the utility model serial oil cylinders motion control device is realized oil cylinder independently moving schematic representation, and Fig. 4 is that the utility model serial oil cylinders motion control device is realized the repairing schematic representation; As shown in the figure, fuel tank fuel pump module 1 mainly comprises oil pump 11 and fuel tank 12, and fuel tank 12 stores oil; Oil pump 11 pump from fuel tank 12 is got oil and offered the outside, forms an oil supply source, and is preferred; Fuel tank fuel pump module 1 also can comprise an overload protection arrangement 13; Be connected between oil pump outlet and the fuel tank, be used to provide overload protection, excessive pressure oil is turned back in the fuel tank; Detailed structure about fuel tank fuel pump module 1 has been more common technology, repeats no more at this.
Switching-over fuel oil supply unit 2 receives the fuel feeding of fuel tank fuel pump module 1; And with forward or intersect to outside fuel feeding or by outside oil return; In the present embodiment, switching-over fuel oil supply unit 2 comprises a four-way change-over valve, its internal oil passages can forward and intersect between switch; The filler opening of this four-way change-over valve is total filler opening 21, is communicated with oil pump 11 outlets; The oil outlet of four-way change-over valve is total oil outlet 22, is communicated with fuel tank 12; Two working holes of four-way change-over valve are first working hole 23 and second working hole 24, are used to connect external module.Further preferred, this four-way change-over valve can be solenoid valve.
Inverting module 3 receives the fuel feeding of switching-over fuel oil supply units 2, make oil circuit forward and intersect between exchange, supply again toward outside.The oil outlet 32 of inverting module 3 is shut.In the present embodiment, inverting module adopts a simple four-way change-over valve, its internal oil passages can forward and intersect between switch, the filler opening of this four-way change-over valve is filler opening 31, is communicated with first working hole 23; The oil outlet of four-way change-over valve is oil outlet 32, for shutting state; Two working holes of four-way change-over valve are the 3rd working hole 33 and the 4th working hole 34, are used to connect external module.Further preferred, this four-way change-over valve can be solenoid valve.
The fuel feeding of first oil cylinder 41 of series connection and second oil cylinder 42 reception inverting modules moves under oil pressure actuated, and through oil return circuit oil finally is back among the fuel tank 12, and two serial oil cylinders are identical.The non-series connection chamber 422 that the non-series connection chamber 412 that the series connection chamber 411,421 of two oil cylinders is communicated in the 4th working hole 34, the first oil cylinders through oil circuit is communicated in the 3rd working hole 33, the second oil cylinders is communicated in second working hole 24.According to actual needs, the series connection chamber of two oil cylinders can be rod chamber, and corresponding non-series connection chamber is a rodless cavity; The chamber of perhaps connecting is a rodless cavity, and non-series connection chamber is a rod chamber; The chamber of perhaps connecting again is the rod chamber of first oil cylinder and the rodless cavity of second oil cylinder, the rodless cavity that non-series connection chamber is first oil cylinder and the rod chamber of second oil cylinder, perhaps the two exchange.Series connection chamber and non-series connection chamber are that rod chamber or rodless cavity can design or adjust according to actual needs, in the present embodiment, are that the series connection chamber is this situation of rod chamber of two oil cylinders.
Repairing check module 5 one ends are communicated with fuel tank fuel pump module 1; Definite saying so is communicated in the outlet of oil pump 11, and the other end is communicated with serial oil cylinders, and repairing check module 5 can make oil circuit switch at path with between opening circuit; So that in good time repairing in serial oil cylinders; And repairing check module 5 has the check function, can prevent that oil in the serial oil cylinders is through among the repairing check module 5 adverse current oil sump tanks 12.In the present embodiment, repairing check module 5 comprises a position control valve 53 and an one-way valve 54, and position control valve 53 internal oil passages have path and open circuit two states; Oil circuit can switch between two states, and the filler opening of position control valve 53 is inlet 51, is communicated in oil pump 11 outlets; The oil outlet of position control valve 53 is communicated in one-way valve 54 oil inlet ends; The oil outlet end of one-way valve 54 then for outlet 52, is communicated in serial oil cylinders, and the oil outlet end of one-way valve 54 is specially the series connection chamber 411 that is communicated in first oil cylinder 41 in the present embodiment; In the one-way valve 54 oil can only flow to oil outlet end by oil inlet end, oppositely then end.Further preferred, this position control valve 53 can be solenoid valve.
What be worth proposition is; In order to prevent that serial oil cylinders from causing the mistake motion of oil cylinder owing to extraneous touching waits other factors; Also can set up a liquid controling element 6; To prevent that oil in the serial oil cylinders arbitrarily is back among the fuel tank, make oil cylinder produce motion, this liquid controling element 6 is located between switching-over fuel oil supply unit 2 and the serial oil cylinders.In the present embodiment, this liquid controling element 6 is a two-way hydraulic lock, and it includes first import 61, second import, 62, the first outlets 63 and second export 64; Wherein first import 61 and first outlet 63 are relatively, second import 62 is relative with second outlet 64, and under the normality, oil can only be by inlet flow to outlet; Oppositely then end, but externally control is down, but oppositely also conducting; In the present embodiment, first import 61 and first working hole 23 are communicated with, and second import 62 and second working hole 24 are communicated with; First outlet 63 is communicated in 64 non-series connection chambers 422 that directly are communicated in second oil cylinder 42 of filler opening 31, the second outlets, is rodless cavity in the present embodiment.
In another embodiment, above-mentioned bidirectional hydraulic lock is also replaceable to be two independent Pilot operated check valves, first Pilot operated check valve and second Pilot operated check valve; It is corresponding respectively to have the first above-mentioned import 61 and exports 64 with first outlet 63, second import 62 and second, and the Placement of each mouthful is same as the previously described embodiments, and the functional characteristics of Pilot operated check valve and bidirectional hydraulic lock are also quite similar; Be under the normality; Oil can only oppositely then end by inlet flow to outlet, but externally control down; But oppositely also conducting, only two Pilot operated check valves are to be divided into two independent oil circuits.
Under request in person and combine Fig. 2 to Fig. 4 to come with reference to figure 5, wherein Fig. 5 be that the utility model serial oil cylinders motion control device is used schematic representation, combines the simple application of respectively scheming to explain the utility model serial oil cylinders motion control device with reference to above-mentioned; As shown in the figure, according to above-mentioned each module assembled, when wanting two serial oil cylinders of synchronous drive with control gear; Reporting to the leadship after accomplishing a task of switching-over fuel oil supply unit 2 triggers to oil circuit, and the pressure oil that oil pump 11 provides flows to for total filler opening 21 to second working holes 24, to second import 62; Again to second outlet 64; And then enter into the non-series connection chamber 422 (rodless cavity) of second oil cylinder 42, and promoting the piston motion of second oil cylinder 42, inverting module 3 oil circuits are state forward; The oil of discharging from the series connection chamber of second oil cylinder 42 421 can't move towards the direction of the 4th working hole 34 to oil outlet 32; Because oil outlet 32 is shut, the oil of discharging from the series connection chamber 421 of second oil cylinder 42 can only get into the series connection chamber 411 of first oil cylinder 41, promotes the piston motion of first oil cylinder 41; Because two oil cylinders are identical; So the distance of first oil cylinder 41 and 42 piston motions of second oil cylinder will equate, promptly realize being synchronized with the movement, and the oil of discharging from the non-series connection chamber 412 of first oil cylinder 41 will be by the 3rd working hole 33 to filler opening 31; Afterwards to first outlet, 63 to first imports 61, after first working hole 23 get back in the fuel tank with total oil outlet 22.
In the said process, the air in the non-series connection chamber of first oil cylinder 41 412 can be discharged simultaneously, if when the piston motion of second oil cylinder 42 during to limit position (piston rod in the diagram stretches out fully); And the piston of first oil cylinder 41 does not also move to limit position (piston rod in the diagram bounces back fully); This is because oil leakage etc. are former thereby two oil cylinders motion that cause is asynchronous, triggers repairing check module 5 with regard to needs this moment to come oil cylinder is carried out repairing, and position control valve 53 triggers the connection oil circuit; The oil that provides from oil pump 11 enters into the series connection chamber 411 of first oil cylinder 41 with one-way valve 54 through direction control valve 53; Be its repairing, promote its piston and continue to move to limit position that realization is synchronous with second oil cylinder 42; Accomplish the operation of repairing as required, further get rid of the air in first oil cylinder, the 41 non-series connection chambers 412 simultaneously.And because the effect of one-way valve 54, oil not can from serial oil cylinders to repairing check module 5 retrograde flows to.
In like manner, when the reversing motion of needs first oil cylinder 41 and second oil cylinder 42, only need the oil circuit direction of control adjustment switching-over fuel oil supply unit 2 and inverting module 3 get final product, for example, the fuel oil supply unit 2 that will commutate is oil circuit state forward by intersection to the oil circuit state transformation.Those skilled in the art can derive the adjustment scheme easily according to the foregoing description, specifically repeats no more at this.
When oil cylinder single movement of needs and during another oil cylinder locking; Switching-over fuel oil supply unit 2 triggers to intersecting oil circuit fuel feeding state; The pressure oil that oil pump 11 provides flows to total filler opening 21 to second working holes 24, to second import 62, again to second outlet 64; And then enter into the non-series connection chamber 422 (rodless cavity) of second oil cylinder 42, promote the piston motion of second oil cylinder 42; This moment, inverting module 3 oil circuits triggered to intersecting to state; The 3rd working hole 33 links to each other with oil outlet 32; And,, the piston of the oil cylinder 41 of winning can't be moved so the fluid of the non-series connection chamber 412 of first oil cylinder 41 can't flow because oil outlet 32 is shut; I.e. first oil cylinder, 41 lockings; And the fluid of discharging from the series connection chamber of second oil cylinder 42 421 will be through the 4th working hole 34 to filler opening 31, to first outlet, 63 to first imports 61, after first working hole 23 flow back into fuel tank 12 with total oil outlet 22.In this process, the oil circuit of repairing check module 5 triggers at turnoff state, no repairing action.So just realized the single movement (piston rod stretches out) of second oil cylinder 42.
And when needing second oil cylinder 42 to make independent counteragent, the fuel oil supply unit 2 that only needs commutate triggers to oil circuit fuel feeding state forward gets final product, and the dynamic those skilled in the art of concrete oil circuit can repeat no more at this according to above-mentioned release easily.
In second oil cylinder, 42 independently movings, its inner residual air is with being excluded simultaneously.
In conjunction with the application among Fig. 4, when two oil cylinders are synchronized with the movement, two swing arms will be moved simultaneously; And when an oil cylinder locking, another oil cylinder independently moving; Can realize that a swing arm fixes, another swing arm campaign, thus make mechanism have more diversified motion mode and function.
What final value must propose is; Though the technological scheme of the utility model in most cases is used for two situation that serial oil cylinders is identical, is not limited thereto, those skilled in the art has answered easily and has expected; When two serial oil cylinders not simultaneously; Though can not realize being synchronized with the movement fully of two oil cylinders, but still may command two oil cylinders move simultaneously, and control an oil cylinder locking, another oil cylinder independently moving; The movement travel of two oil cylinders can be confirmed through the calculating of concrete parameter, thereby realize accurately control.
The above is merely the schematic embodiment of the utility model, is not in order to limit the scope of the utility model.Any those skilled in the art, equivalent variations of under the prerequisite of design that does not break away from the utility model and principle, having done and modification all should belong to the scope that the utility model is protected.
Claims (11)
1. a serial oil cylinders motion control device is characterized in that, said serial oil cylinders motion control device comprises:
The fuel tank fuel pump module;
With forward or intersect switching-over fuel oil supply unit to fuel feeding and oil return, be connected in said fuel tank fuel pump module, receive the fuel feeding of said fuel tank fuel pump module;
Switch oil circuit and be forward or intersection to inverting module, connect said switching-over fuel oil supply unit, receive the fuel feeding of said switching-over fuel oil supply unit;
Serial oil cylinders connects said inverting module, receives the fuel feeding of said inverting module, and said serial oil cylinders comprises first oil cylinder and second oil cylinder of series connection.
2. serial oil cylinders motion control device according to claim 1 is characterized in that, said serial oil cylinders motion control device also comprises repairing check module, is connected between said fuel tank fuel pump module and the said serial oil cylinders.
3. serial oil cylinders motion control device according to claim 1 and 2 is characterized in that, said first oil cylinder is identical with said second oil cylinder.
4. serial oil cylinders motion control device according to claim 1 and 2 is characterized in that, said fuel tank fuel pump module comprises oil pump and fuel tank;
Said switching-over fuel oil supply unit comprises:
Total filler opening is communicated in said oil pump;
Total oil outlet is communicated in said fuel tank;
To outside fuel feeding or by first working hole and second working hole of outside oil return;
Said inverting module comprises:
Filler opening is communicated in said first working hole;
Oil outlet, said oil outlet is shut;
To outside fuel feeding or by the 3rd working hole and the 4th working hole of outside oil return;
First oil cylinder of said series connection and the series connection chamber of second oil cylinder are communicated in said the 4th working hole, and the non-series connection chamber of said first oil cylinder is communicated in said the 3rd working hole, and the non-series connection chamber of said second oil cylinder is communicated in said second working hole.
5. serial oil cylinders motion control device according to claim 4 is characterized in that, said repairing check module has inlet and outlet, and said inlet is communicated in said oil pump, and said outlet is communicated in the series connection chamber of said first oil cylinder.
6. serial oil cylinders motion control device according to claim 5 is characterized in that, said repairing check module comprises:
Position control valve, internal oil passages have path and open circuit two states, and the filler opening of said position control valve is said inlet;
One-way valve, its oil inlet end is communicated in the oil outlet of said position control valve, and its oil outlet end is said outlet.
7. serial oil cylinders motion control device according to claim 4; It is characterized in that; Said switching-over fuel oil supply unit comprises four-way change-over valve, and its internal oil passages has forward and intersects to two kinds of switching states, and said four-way change-over valve filler opening is said total filler opening; The oil outlet of said four-way change-over valve is said total oil outlet, and two working holes of said four-way change-over valve are said first working hole and second working hole.
8. serial oil cylinders motion control device according to claim 4; It is characterized in that said inverting module is a four-way change-over valve, its internal oil passages has forward and intersects to two kinds of switching states; The filler opening of said four-way change-over valve is said inverting module filler opening; The oil outlet of said four-way change-over valve is said inverting module oil outlet, and for shutting state, two working holes of said four-way change-over valve are said inverting module the 3rd working hole and the 4th working hole.
9. serial oil cylinders motion control device according to claim 4; It is characterized in that; Said serial oil cylinders motion control device also comprises the random liquid controling element that refluxes of the fluid that prevents in the said serial oil cylinders, and said liquid controling element is located between said switching-over fuel oil supply unit and the said serial oil cylinders.
10. serial oil cylinders motion control device according to claim 9 is characterized in that, said liquid controling element is a two-way hydraulic lock, and said bidirectional hydraulic lock comprises:
First import is communicated with said first working hole;
Second import is communicated with said second working hole;
First outlet, relative with said first import, said first outlet is communicated with said inverting module filler opening;
Second outlet, relative with said second import, said second outlet is communicated with the non-series connection chamber of said second oil cylinder.
11. serial oil cylinders motion control device according to claim 9 is characterized in that, said liquid controling element comprises:
First Pilot operated check valve comprises first import, is communicated with said first working hole; And first the outlet, be communicated with said inverting module filler opening;
Second Pilot operated check valve comprises second import, is communicated with said second working hole; And second outlet, be communicated with the non-series connection chamber of said second oil cylinder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201120330272XU CN202251171U (en) | 2011-09-05 | 2011-09-05 | Motion control device of cylinders in series |
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| CN201120330272XU CN202251171U (en) | 2011-09-05 | 2011-09-05 | Motion control device of cylinders in series |
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2011
- 2011-09-05 CN CN201120330272XU patent/CN202251171U/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102705282A (en) * | 2012-06-28 | 2012-10-03 | 中联重科股份有限公司 | Concrete pumping equipment and travel control device and method for series oil cylinders |
| CN102705282B (en) * | 2012-06-28 | 2015-07-15 | 中联重科股份有限公司 | Concrete pumping equipment and travel control device and method for series oil cylinders |
| CN102758806A (en) * | 2012-07-18 | 2012-10-31 | 天津市天锻压力机有限公司 | Crossbeam press multi-hydraulic cushion synchronous control system |
| CN102758806B (en) * | 2012-07-18 | 2015-05-13 | 天津市天锻压力机有限公司 | Crossbeam press multi-hydraulic cushion synchronous control system |
| CN104591011A (en) * | 2013-10-31 | 2015-05-06 | 北汽福田汽车股份有限公司 | Crane jib switching valve, hydraulic control system and engineering machinery |
| CN104696296A (en) * | 2013-12-04 | 2015-06-10 | 佛山市恒力泰机械有限公司 | Hydraulic synchronization oil channel structure with bi-directional oil replenishing and discharging function |
| CN104100587A (en) * | 2014-06-09 | 2014-10-15 | 烟台宝钢钢管有限责任公司 | Self-correction dual-hydraulic cylinder synchronizing system |
| CN104289519A (en) * | 2014-09-25 | 2015-01-21 | 成都冶金实验厂有限公司 | Hydraulic oil cylinder type rebar tail pressing machine |
| CN106574640A (en) * | 2014-10-23 | 2017-04-19 | 南京迈瑞生物医疗电子有限公司 | Hydraulic drive system for operating table |
| CN110118169A (en) * | 2018-02-06 | 2019-08-13 | 爱伏机械(上海)有限公司 | A kind of hydraulic concrete double-piston pump commutation current stabilization control system |
| DE102022203822B4 (en) | 2021-05-12 | 2024-02-15 | Hawe Hydraulik Se | Hydraulic control system |
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