CN103047205A - Method, system and engineering machinery for synchronously controlling multiple oil cylinders - Google Patents
Method, system and engineering machinery for synchronously controlling multiple oil cylinders Download PDFInfo
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- CN103047205A CN103047205A CN2012105812285A CN201210581228A CN103047205A CN 103047205 A CN103047205 A CN 103047205A CN 2012105812285 A CN2012105812285 A CN 2012105812285A CN 201210581228 A CN201210581228 A CN 201210581228A CN 103047205 A CN103047205 A CN 103047205A
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Abstract
The invention provides a method, a system and engineering machinery for synchronously controlling multiple oil cylinders. The method includes: the oil cylinders in parallel connection are serially connected with balance valves and reversing valves respectively, and then serially connected with a flow dividing valve and a load-sensitive valve. An oil inlet of the flow dividing valve is communicated with a working oil port of the load-sensitive valve. An oil outlet of the flow dividing valve is communicated with oil inlets of the reversing valves of the oil cylinders. The other working oil port of the load-sensitive valve is communicated with oil return ports of the reversing valves of the oil cylinders. When oil paths of the oil cylinders are all communicated with the load-sensitive valve, the oil cylinders can be controlled by the load-sensitive valve synchronously. By the method, the oil cylinders can be controlled by synchronously by one load-sensitive valve, cost can be lowered, simple and convenient maintenance is achieved, oil intake of the oil cylinders is controlled by the flow dividing valve, and synchronization performance of the oil cylinders is improved effectively.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of Multi-cylinder synchronisation control means, system and engineering machinery.
Background technique
At present, in whole rotary drilling rig industry, all adopt two oil cylinders of two load-sensitive valves control mast, adopt the spun digger of this system, also there are problem more or less in the net synchronization capability of its mast oil cylinder and having stable behavior performance, particularly when left and right sides mast oil cylinder load gap is larger, the phenomenons such as shake easily occur, have a strong impact on the Security of rotary drilling rig operation.
Summary of the invention
In view of this, the present invention is intended to propose a kind of Multi-cylinder synchronisation control means, system and engineering machinery, synchronous not problem when solving the common load of Multi-cylinder.
For achieving the above object, technological scheme of the present invention is achieved in that
On the one hand, the invention provides a kind of Multi-cylinder synchronisation control means, with each oil cylinder of parallel connection respectively with after equilibrium valve, selector valve are connected, connect with a diverter valve and a load-sensitive valve again, the filler opening of described diverter valve is communicated with an actuator port of described load-sensitive valve, the oil outlet of described diverter valve is communicated with the filler opening of the selector valve of each oil cylinder respectively, and another actuator port of described load-sensitive valve is communicated with the return opening of the selector valve of each oil cylinder simultaneously; When the oil circuit of each oil cylinder all is communicated with described load-sensitive valve, can pass through each oil cylinder of load-sensitive valve synchronization control; When needs were controlled a part of oil cylinder separately, the selector valve by each oil cylinder disconnects did not need the oil cylinder controlled and the oil circuit of described load-sensitive valve to get final product.
On the other hand, the present invention also provides a kind of Multi-cylinder synchronous control system, comprise at least two oil cylinders and equilibrium valve and the selector valve of connecting with each oil cylinder, also comprise diverter valve and a load-sensitive valve, an actuator port of described load-sensitive valve is communicated with the filler opening of described diverter valve, the oil outlet of described diverter valve is communicated with the filler opening of the selector valve of each oil cylinder respectively, and another actuator port of described load-sensitive valve is communicated with the return opening of the selector valve of each oil cylinder simultaneously.
Further, described selector valve is the 3-position 4-way solenoid directional control valve.
Further, the Median Function of described selector valve is the H type.
Further, two of described selector valve actuator ports are communicated with rod chamber and the rodless cavity of described oil cylinder respectively by described equilibrium valve.
Further, described load-sensitive valve is 3-position 4-way electromagnetic switch load-sensitive valve.
Further, the Median Function of described load-sensitive valve is the Y type.
On the one hand, the present invention also provides a kind of engineering machinery that is provided with above-mentioned Multi-cylinder synchronous control system.
Further, described engineering machinery is spun digger.
With respect to prior art, the present invention has following advantage:
(1) Multi-cylinder synchronisation control means of the present invention and system adopt a load-sensitive valve to get final product all oil cylinders of synchronization control, can reduce cost, safeguard simple and convenient.
(2) Multi-cylinder synchronisation control means of the present invention and system adopt diverter valve to control the oil-feed of each oil cylinder, can effectively promote the net synchronization capability of each oil cylinder.
(3) selector valve of each oil cylinder of Multi-cylinder synchronous control system of the present invention and load-sensitive valve are solenoid valve, adopt complete automatically controlled scheme, are easy to regulate and realize automatically control.
Description of drawings
The accompanying drawing that consists of a part of the present invention is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the described Multi-cylinder synchronous control system of the embodiment of the invention.
Description of reference numerals:
The 1-load-sensitive valve, 2-diverter valve, 31-the first selector valve, 32-the second selector valve, 41-the first equilibrium valve, 42-the second equilibrium valve, 51-the first oil cylinder, 52-the second oil cylinder.
Embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment among the present invention can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
The described Multi-cylinder synchronisation control means of the embodiment of the invention, respectively with after equilibrium valve, selector valve are connected with each oil cylinder of parallel connection, connect with a diverter valve 2 and a load-sensitive valve 1 again, the filler opening of described diverter valve 2 is communicated with an actuator port of described load-sensitive valve 1, the oil outlet of described diverter valve 2 is communicated with the filler opening of the selector valve of each oil cylinder respectively, and another actuator port of described load-sensitive valve 1 is communicated with the return opening of the selector valve of each oil cylinder simultaneously; When the oil circuit of each oil cylinder all is communicated with described load-sensitive valve 1, can pass through each oil cylinder of load-sensitive valve 1 synchronization control; When needs were controlled a part of oil cylinder separately, the selector valve by each oil cylinder disconnects did not need the oil cylinder controlled and the oil circuit of described load-sensitive valve 1 to get final product.
Below in conjunction with accompanying drawing the Multi-cylinder synchronous control system that adopts said method is further specified, as shown in Figure 1, the described Multi-cylinder control system of the present embodiment includes load-sensitive valve 1, diverter valve 2, the first selector valve 31, the second selector valve 32, the first equilibrium valve 41, the second equilibrium valve 42, the first oil cylinder 51 and the second oil cylinder 52; This first selector valve 31 and the second selector valve 32 are common three position four-way electromagnetic valve, and its Median Function is the H type; The first equilibrium valve 41 and the second equilibrium valve 42 are common equilibrium valve; This load-sensitive valve 1 is 3-position 4-way electromagnetic switch load-sensitive valve 1, and its Median Function is the Y type; This diverter valve 2 has a filler opening and two oil outlets.The oil inlet P 1 of this load-sensitive valve 1 is communicated with pressure oil, oil return inlet T 1 takes back fuel tank, actuator port A1 is communicated with the filler opening of diverter valve 2, two oil outlets of this diverter valve 2 are communicated with the oil inlet P 2 of the first selector valve 31 and the oil inlet P 2 of the second selector valve 32 respectively, the actuator port B1 while of this load-sensitive valve 1 and the oil return inlet T 2 of the first selector valve 31, the oil return inlet T 3 of the second selector valve 32 is communicated with, the actuator port A2 of this first selector valve 31, B2 is communicated with respectively the actuator port A3 of the second selector valve 32 by the first equilibrium valve 41 with rod chamber and the rodless cavity of the first oil cylinder 51, B3 is communicated with rod chamber and the rodless cavity of the second oil cylinder 52 respectively by the second equilibrium valve 42.
When the described Multi-cylinder synchronous control system of the present embodiment was applied to rotary drilling rig, this first oil cylinder 51 and the second oil cylinder 52 were respectively two mast oil cylinders, and its specific embodiments is as follows:
One, the first oil cylinder 51 and the second oil cylinder 52 stretch out synchronously
2D, 3D, 5D simultaneously electric, pressure oil enters from the P1 mouth of load-sensitive valve 1, after diverter valve 2 shunting, arrives respectively the P2 mouth of the first selector valve 31 and the P3 mouth of the second selector valve 32, this moment, the first selector valve 31, the second selector valve 32 all were in left position; Concerning the first oil cylinder 51, pressure oil arrives the B2 mouth through the P2 mouth, enters the rodless cavity of the first oil cylinder 51 through the first equilibrium valve 41, promotes the first oil cylinder 51 and stretches out; Concerning the second oil cylinder 52, pressure oil arrives the B3 mouth through the P3 mouth, enters the rodless cavity of the second oil cylinder 52 through the second equilibrium valve 42, promotes oil cylinder and stretches out; Realize that mast oil cylinder stretches out function synchronously this moment.
Two, the first oil cylinder 51 and the second oil cylinder 52 are retracted synchronously
2D, 4D, 6D simultaneously electric, pressure oil enters from the P1 mouth of load-sensitive valve 1, after diverter valve 2 shunting, arrives respectively the P2 mouth of the first selector valve 31 and the P3 mouth of the second selector valve 32, this moment, the first selector valve 31, the second selector valve 32 all were in right position; Concerning the first oil cylinder 51, pressure oil arrives the A2 mouth through the P2 mouth, enters the rod chamber of the first oil cylinder 51 through the first equilibrium valve 41, promotes oil cylinder and retracts; Concerning the second oil cylinder 52, pressure oil arrives the A3 mouth through the P3 mouth, advances rod chamber such as the second oil cylinder 52 through the second equilibrium valve 42, promotes oil cylinder and retracts; Realize the mast oil cylinder function of retracting synchronously this moment.
Three, the first oil cylinder 51 single movements
2D, 3D simultaneously electric, pressure oil enters from the P1 mouth of load-sensitive valve 1, after diverter valve 2 shunting, arrives respectively the P2 mouth of the first selector valve 31 and the P3 mouth of the second selector valve 32, this moment, the second selector valve 32 was in meta, the second oil cylinder 52 is motionless; The first selector valve 31 is in left position, and pressure oil arrives the B2 mouth through the P2 mouth, enters the rodless cavity of the first oil cylinder 51 through the first equilibrium valve 41, promotes the first oil cylinder 51 and stretches out;
2D, 4D simultaneously electric, pressure oil enters from the P1 mouth of load-sensitive valve 1, after diverter valve 2 shunting, arrives respectively the P2 mouth of the first selector valve 31 and the P3 mouth of the second selector valve 32, this moment the second selector valve 32 be in meta, the second oil cylinder 52 is motionless; The first selector valve 31 is in right position, and pressure oil arrives the A2 mouth through the P2 mouth, enters the rod chamber of the first oil cylinder 51 through the first equilibrium valve 41, promotes oil cylinder and retracts; Thereby realize the fine adjustment function of the first oil cylinder 51.
Four, the second oil cylinder 52 single movements
2D, 5D simultaneously electric, pressure oil enters from the P1 mouth of load-sensitive valve 1, after diverter valve 2 shunting, arrives respectively the P2 mouth of the first selector valve 31 and the P3 mouth of the second selector valve 32, this moment the first selector valve 31 be in meta, the first oil cylinder 51 is motionless; The second selector valve 32 is in left position, and pressure oil arrives the B3 mouth through the P3 mouth, enters the rodless cavity of the second oil cylinder 52 through the second equilibrium valve 42, promotes the second oil cylinder 52 and stretches out;
2D, 6D simultaneously electric, pressure oil enters from the P1 mouth of load-sensitive valve 1, after diverter valve 2 shunting, arrives respectively the P2 mouth of the first selector valve 31 and the P3 mouth of the second selector valve 32, this moment the first selector valve 31 be in meta, the first oil cylinder 51 is motionless; The second selector valve 32 is in right position, and pressure oil arrives the A3 mouth through the P3 mouth, enters the rod chamber of the second oil cylinder 52 through the second equilibrium valve 42, promotes oil cylinder and retracts; Thereby realize the fine adjustment function of mast the second oil cylinder 52.
Except above-mentioned Multi-cylinder synchronous control system, the present invention also provides a kind of engineering machinery that is provided with above-mentioned Multi-cylinder synchronous control system, particularly a kind of rotary drilling rig, and the structure of other each several part of this rotary drilling rig is with reference to prior art, and this paper repeats no more.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. Multi-cylinder synchronisation control means, it is characterized in that, with each oil cylinder of parallel connection respectively with after equilibrium valve, selector valve are connected, connect with a diverter valve (2) and a load-sensitive valve (1) again, the filler opening of described diverter valve (2) is communicated with an actuator port of described load-sensitive valve (1), the oil outlet of described diverter valve (2) is communicated with the filler opening of the selector valve of each oil cylinder respectively, and another actuator port of described load-sensitive valve (1) is communicated with the return opening of the selector valve of each oil cylinder simultaneously; When the oil circuit of each oil cylinder all when being communicated with, can pass through each oil cylinder of a load-sensitive valve (1) synchronization control with described load-sensitive valve (1); When needs were controlled a part of oil cylinder separately, the selector valve by each oil cylinder disconnects did not need the oil cylinder controlled and the oil circuit of described load-sensitive valve (1) to get final product.
2. Multi-cylinder synchronous control system, comprise at least two oil cylinders and equilibrium valve and the selector valve of connecting with each oil cylinder, it is characterized in that, also comprise diverter valve (2) and a load-sensitive valve (1), an actuator port of described load-sensitive valve (1) is communicated with the filler opening of described diverter valve (2), the oil outlet of described diverter valve (2) is communicated with the filler opening of the selector valve of each oil cylinder respectively, and another actuator port of described load-sensitive valve (1) is communicated with the return opening of the selector valve of each oil cylinder simultaneously.
3. Multi-cylinder synchronous control system according to claim 2 is characterized in that, described selector valve is the 3-position 4-way solenoid directional control valve.
4. Multi-cylinder synchronous control system according to claim 3 is characterized in that, the Median Function of described selector valve is the H type.
5. according to claim 3 or 4 described Multi-cylinder synchronous control systems, it is characterized in that, two actuator ports of described selector valve are communicated with rod chamber and the rodless cavity of described oil cylinder respectively by described equilibrium valve.
6. Multi-cylinder synchronous control system according to claim 5 is characterized in that, described load-sensitive valve (1) is 3-position 4-way electromagnetic switch load-sensitive valve.
7. Multi-cylinder synchronous control system according to claim 6 is characterized in that, the Median Function of described load-sensitive valve (1) is the Y type.
8. an engineering machinery is characterized in that, described engineering machinery is provided with such as the described Multi-cylinder synchronous control system of claim 2 to 7 any one.
9. engineering machinery according to claim 8 is characterized in that, described engineering machinery is rotary drilling rig.
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| CN201210581228.5A CN103047205B (en) | 2012-12-28 | 2012-12-28 | Multi-cylinder synchronisation control means, system and engineering machinery |
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| CN201210581228.5A CN103047205B (en) | 2012-12-28 | 2012-12-28 | Multi-cylinder synchronisation control means, system and engineering machinery |
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| CN103047205B CN103047205B (en) | 2016-05-11 |
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Cited By (8)
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| CN105275903A (en) * | 2015-11-25 | 2016-01-27 | 上海电气液压气动有限公司 | Oil cylinder high-precision synchronous control hydraulic system of huge heavy equipment |
| CN105545845A (en) * | 2015-11-25 | 2016-05-04 | 上海电气液压气动有限公司 | Hydraulic driving device of oversized heavy device |
| CN106704281A (en) * | 2017-01-24 | 2017-05-24 | 长沙通石达机械制造有限公司 | Combined rope sawing machine |
| CN106957027A (en) * | 2017-04-26 | 2017-07-18 | 中意泰达(营口)汽车保修设备有限公司 | The full-automatic leveling system of lifting machine |
| CN108571488A (en) * | 2017-03-13 | 2018-09-25 | 上海融德机电工程设备有限公司 | Pulsed hydraulic pressure divides synchronous valve |
| CN111577687A (en) * | 2020-05-06 | 2020-08-25 | 太原理工大学 | Load-sensitive double-hydraulic-cylinder synchronization system and control method thereof |
| CN112415603A (en) * | 2020-10-16 | 2021-02-26 | 山东大学 | Induced polarization electrode detection device, system and method carried on TBM cutter head |
| CN113294397A (en) * | 2021-04-13 | 2021-08-24 | 中铁工程装备集团有限公司 | Pipe piece crane and shield machine |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105545845A (en) * | 2015-11-25 | 2016-05-04 | 上海电气液压气动有限公司 | Hydraulic driving device of oversized heavy device |
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| CN105275903A (en) * | 2015-11-25 | 2016-01-27 | 上海电气液压气动有限公司 | Oil cylinder high-precision synchronous control hydraulic system of huge heavy equipment |
| CN106704281B (en) * | 2017-01-24 | 2018-09-21 | 长沙通石达机械制造有限公司 | Combined rope saw |
| CN106704281A (en) * | 2017-01-24 | 2017-05-24 | 长沙通石达机械制造有限公司 | Combined rope sawing machine |
| CN108571488A (en) * | 2017-03-13 | 2018-09-25 | 上海融德机电工程设备有限公司 | Pulsed hydraulic pressure divides synchronous valve |
| CN108571488B (en) * | 2017-03-13 | 2024-01-23 | 上海融德机电工程设备有限公司 | Pulse type hydraulic partial pressure synchronous valve |
| CN106957027A (en) * | 2017-04-26 | 2017-07-18 | 中意泰达(营口)汽车保修设备有限公司 | The full-automatic leveling system of lifting machine |
| CN111577687A (en) * | 2020-05-06 | 2020-08-25 | 太原理工大学 | Load-sensitive double-hydraulic-cylinder synchronization system and control method thereof |
| CN111577687B (en) * | 2020-05-06 | 2021-10-08 | 太原理工大学 | Load-sensitive double-hydraulic-cylinder synchronization system and control method thereof |
| CN112415603A (en) * | 2020-10-16 | 2021-02-26 | 山东大学 | Induced polarization electrode detection device, system and method carried on TBM cutter head |
| CN113294397A (en) * | 2021-04-13 | 2021-08-24 | 中铁工程装备集团有限公司 | Pipe piece crane and shield machine |
| CN113294397B (en) * | 2021-04-13 | 2024-02-09 | 中铁工程装备集团有限公司 | Segment crane and shield machine |
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