CN203067381U - Multi-oil cylinder synchronous control system and engineering machinery - Google Patents
Multi-oil cylinder synchronous control system and engineering machinery Download PDFInfo
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- CN203067381U CN203067381U CN 201220738927 CN201220738927U CN203067381U CN 203067381 U CN203067381 U CN 203067381U CN 201220738927 CN201220738927 CN 201220738927 CN 201220738927 U CN201220738927 U CN 201220738927U CN 203067381 U CN203067381 U CN 203067381U
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Abstract
The utility model provides a multi-oil cylinder synchronous control system and engineering machinery. The multi-oil cylinder synchronous control system comprises at least two oil cylinders, balance valves, reversing valves, a diverter valve and a load-sensitive valve, wherein the balance valves are connected with all the oil cylinders in series. One working oil port of the load-sensitive valve is communicated with an oil inlet of the diverter valve. An oil outlet of the diverter valve is respectively communicated with oil inlets of the reversing valves of all the oil cylinders. The other working oil port of the load-sensitive valve is communicated with oil return openings of the reversing valves of all the oil cylinders. According to a multi-oil cylinder synchronous control method and the multi-oil cylinder synchronous control system, all the oil cylinders can be synchronously controlled by using the load-sensitive valve, cost is lowered, maintaining is simple and convenient, the diverter valve is used for controlling oil feeding of all the oil cylinders, synchronous performance of all the oil cylinders can be effectively improved.
Description
Technical field
The utility model relates to engineering machinery field, particularly a kind of heavy wool cylinder synchronous control 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 revolving of this system to dig favourable turn, can also there be problem more or less in the net synchronization capability of its mast oil cylinder and action stability, particularly when mast oil cylinder load gap in the left and right sides is big, occur phenomenons such as shake easily, have a strong impact on the Security of rotary drilling rig operation.
The model utility content
In view of this, the utility model is intended to propose a kind of heavy wool cylinder synchronous control system and engineering machinery, synchronous problem inadequately when solving the common load of heavy wool cylinder.
For achieving the above object, the technical solution of the utility model is achieved in that
On the one hand, the utility model provides a kind of heavy wool 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 meta 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 meta function of described load-sensitive valve is the Y type.
On the other hand, the utility model also provides a kind of engineering machinery that is provided with above-mentioned heavy wool cylinder synchronous control system.
Further, described engineering machinery is dug favourable turn for revolving.
With respect to prior art, the utlity model has following advantage:
(1) heavy wool cylinder synchronous control system described in the utility model adopts a load-sensitive valve to get final product all oil cylinders of synchronization control, can reduce cost, and safeguards simple and convenient.
(2) heavy wool cylinder synchronous control system described in the utility model adopts 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 and the load-sensitive valve of each oil cylinder of heavy wool cylinder synchronous control system described in the utility model are solenoid valve, adopt complete automatically controlled scheme, are easy to regulate and realize control automatically.
Description of drawings
The accompanying drawing that constitutes a part of the present utility model is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic representation of the described heavy wool cylinder of the utility model embodiment synchronous control system.
Description of reference numerals:
The 1-load-sensitive valve, 2-diverter valve, 31-first selector valve, 32-second selector valve, 41-first equilibrium valve, 42-second equilibrium valve, 51-first oil cylinder, 52-second oil cylinder.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment in the utility model can make up mutually.Describe the utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
The described heavy wool cylinder of the utility model embodiment synchronisation control means, be 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 heavy wool cylinder synchronous control system that adopts said method is further specified, as shown in Figure 1, the described heavy wool cylinder of present embodiment control system includes load-sensitive valve 1, diverter valve 2, first selector valve 31, second selector valve 32, first equilibrium valve 41, second equilibrium valve 42, first oil cylinder 51 and second oil cylinder 52; This first selector valve 31 and second selector valve 32 are common three position four-way electromagnetic valve, and its meta function is the H type; First equilibrium valve 41 and 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 meta 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 first selector valve 31 and the oil inlet P 2 of second selector valve 32 respectively, the actuator port B1 while of this load-sensitive valve 1 and the oil return inlet T 2 of first selector valve 31, the oil return inlet T 3 of second selector valve 32 is communicated with, the actuator port A2 of this first selector valve 31, B2 is communicated with the actuator port A3 of second selector valve 32 respectively by first equilibrium valve 41 with rod chamber and the rodless cavity of first oil cylinder 51, B3 is communicated with rod chamber and the rodless cavity of second oil cylinder 52 respectively by second equilibrium valve 42.
When the described heavy wool cylinder of present embodiment synchronous control system was applied to rotary drilling rig, this first oil cylinder 51 and second oil cylinder 52 were respectively two mast oil cylinders, and its specific embodiments is as follows:
One, first oil cylinder 51 and 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 the P2 mouth of first selector valve 31 and the P3 mouth of second selector valve 32 respectively, this moment, first selector valve 31, second selector valve 32 all were in position, a left side; Concerning first oil cylinder 51, pressure oil arrives the B2 mouth through the P2 mouth, enters the rodless cavity of first oil cylinder 51 through first equilibrium valve 41, promotes first oil cylinder 51 and stretches out; Concerning second oil cylinder 52, pressure oil arrives the B3 mouth through the P3 mouth, enters the rodless cavity of second oil cylinder 52 through second equilibrium valve 42, promotes oil cylinder and stretches out; Realize that mast oil cylinder stretches out function synchronously this moment.
Two, first oil cylinder 51 and second oil cylinder 52 are withdrawn synchronously
2D, 4D, 6D simultaneously electric, pressure oil enters from the P1 mouth of load-sensitive valve 1, after diverter valve 2 shunting, arrives the P2 mouth of first selector valve 31 and the P3 mouth of second selector valve 32 respectively, this moment, first selector valve 31, second selector valve 32 all were in right position; Concerning first oil cylinder 51, pressure oil arrives the A2 mouth through the P2 mouth, enters the rod chamber of first oil cylinder 51 through first equilibrium valve 41, promotes the oil cylinder withdrawal; Concerning second oil cylinder 52, pressure oil arrives the A3 mouth through the P3 mouth, advances rod chamber as second oil cylinder 52 through second equilibrium valve 42, promotes the oil cylinder withdrawal; Realize the mast oil cylinder function of withdrawing synchronously this moment.
Three, 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 the P2 mouth of first selector valve 31 and the P3 mouth of second selector valve 32 respectively, this moment, second selector valve 32 was in meta, second oil cylinder 52 is motionless; First selector valve 31 is in left side position, and pressure oil arrives the B2 mouth through the P2 mouth, enters the rodless cavity of first oil cylinder 51 through first equilibrium valve 41, promotes 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 the P2 mouth of first selector valve 31 and the P3 mouth of second selector valve 32 respectively, this moment second selector valve 32 be in meta, second oil cylinder 52 is motionless; First selector valve 31 is in right position, and pressure oil arrives the A2 mouth through the P2 mouth, enters the rod chamber of first oil cylinder 51 through first equilibrium valve 41, promotes the oil cylinder withdrawal; Thereby realize the fine adjustment function of first oil cylinder 51.
Four, 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 the P2 mouth of first selector valve 31 and the P3 mouth of second selector valve 32 respectively, this moment first selector valve 31 be in meta, first oil cylinder 51 is motionless; Second selector valve 32 is in left side position, and pressure oil arrives the B3 mouth through the P3 mouth, enters the rodless cavity of second oil cylinder 52 through second equilibrium valve 42, promotes 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 the P2 mouth of first selector valve 31 and the P3 mouth of second selector valve 32 respectively, this moment first selector valve 31 be in meta, first oil cylinder 51 is motionless; Second selector valve 32 is in right position, and pressure oil arrives the A3 mouth through the P3 mouth, enters the rod chamber of second oil cylinder 52 through second equilibrium valve 42, promotes the oil cylinder withdrawal; Thereby realize the fine adjustment function of mast second oil cylinder 52.
Except above-mentioned heavy wool cylinder synchronous control system, the utility model also provides a kind of engineering machinery that is provided with above-mentioned heavy wool cylinder synchronous control system, a kind of rotary drilling rig particularly, 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 utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. heavy wool 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.
2. heavy wool cylinder synchronous control system according to claim 1 is characterized in that, described selector valve is the 3-position 4-way solenoid directional control valve.
3. heavy wool cylinder synchronous control system according to claim 2 is characterized in that, the meta function of described selector valve is the H type.
4. according to claim 2 or 3 described heavy wool 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.
5. heavy wool cylinder synchronous control system according to claim 4 is characterized in that, described load-sensitive valve (1) is 3-position 4-way electromagnetic switch load-sensitive valve.
6. heavy wool cylinder synchronous control system according to claim 5 is characterized in that, the meta function of described load-sensitive valve (1) is the Y type.
7. an engineering machinery is characterized in that, described engineering machinery is provided with as any described heavy wool cylinder synchronous control system of claim 1 to 6.
8. engineering machinery according to claim 7 is characterized in that, described engineering machinery is rotary drilling rig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220738927 CN203067381U (en) | 2012-12-28 | 2012-12-28 | Multi-oil cylinder synchronous control system and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220738927 CN203067381U (en) | 2012-12-28 | 2012-12-28 | Multi-oil cylinder synchronous control system and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203067381U true CN203067381U (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220738927 Withdrawn - After Issue CN203067381U (en) | 2012-12-28 | 2012-12-28 | Multi-oil cylinder synchronous control system and engineering machinery |
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| CN (1) | CN203067381U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047205A (en) * | 2012-12-28 | 2013-04-17 | 三一重工股份有限公司 | Method, system and engineering machinery for synchronously controlling multiple oil cylinders |
| CN112196850A (en) * | 2020-09-30 | 2021-01-08 | 三一汽车制造有限公司 | Support leg hydraulic system, work vehicle and control method |
-
2012
- 2012-12-28 CN CN 201220738927 patent/CN203067381U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047205A (en) * | 2012-12-28 | 2013-04-17 | 三一重工股份有限公司 | Method, system and engineering machinery for synchronously controlling multiple oil cylinders |
| CN103047205B (en) * | 2012-12-28 | 2016-05-11 | 三一重工股份有限公司 | Multi-cylinder synchronisation control means, system and engineering machinery |
| CN112196850A (en) * | 2020-09-30 | 2021-01-08 | 三一汽车制造有限公司 | Support leg hydraulic system, work vehicle and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130717 Effective date of abandoning: 20160511 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |