CN202326484U - Switching control valve for large-flow oil path - Google Patents
Switching control valve for large-flow oil path Download PDFInfo
- Publication number
- CN202326484U CN202326484U CN2011204457516U CN201120445751U CN202326484U CN 202326484 U CN202326484 U CN 202326484U CN 2011204457516 U CN2011204457516 U CN 2011204457516U CN 201120445751 U CN201120445751 U CN 201120445751U CN 202326484 U CN202326484 U CN 202326484U
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- China
- Prior art keywords
- valve
- hydraulic fluid
- fluid port
- oil circuit
- oil path
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a switching control valve for a large-flow oil path. The switching control valve for the large-flow oil path comprises a valve body, an oil port arranged on the valve body, and an oil path which is arranged in the valve body and is communicated with the oil port, and is characterized in that: a control valve block is arranged on the oil path in the valve body. The hydraulic large-flow oil path can be switched, so the flow rate of pressure oil passing through the oil path reaches 600L/min, and thus the large-flow oil path can be switched, the load pressure can be prevented from returning to affect control and disturb the accurate switching of the oil path, and the oil path can be stably and accurately controlled.
Description
Technical field
The utility model relates to a kind of oil circuit switching control valve, and especially a kind of big flow oil circuit switching control valve belongs to oil circuit control technique field.
Background technique
In some hydraulic system, in order to practice thrift cost, optimal design need switch to other equipment from certain equipment with hydraulic circuit, and can not influence each other between each equipment, and this just need realize through the oil circuit switching control valve.And at present, known oil circuit switching control valve all is little latus rectum, and the flow that passes through but can't satisfy the switching needs all less than 150L/min for big flow oil circuit.Therefore, be necessary existing technology is improved.
Summary of the invention
The purpose of the utility model is to provide a kind of big flow oil circuit switching control valve, to realize the switching of big flow oil circuit.
The utility model provides a kind of so big flow oil circuit switching control valve; Comprise valve body; Be located at the hydraulic fluid port on the valve body, be located in the valve body and the oil circuit that is communicated with hydraulic fluid port, it is characterized in that the oil circuit in the valve body is provided with the control valve group; So that the open and close control valve group is come being communicated with and blocking-up of oil circuit and hydraulic fluid port in the control valve body as required, realize the switching of big flow oil circuit.
Hydraulic fluid port on the said valve body is made as two main hydraulic fluid port A and the B that is interconnected; Two the secondary hydraulic fluid port A1, the A2 that are communicated with main hydraulic fluid port A; Two the secondary hydraulic fluid port B1, the B2 that are communicated with main hydraulic fluid port B wherein, are provided with first shuttle valve on first oil circuit between two main hydraulic fluid port A, the B; Be respectively equipped with first, second logical valve on second oil circuit between main hydraulic fluid port A and two secondary hydraulic fluid port A1, the A2; Be respectively equipped with the 3rd, the 4th logical valve on the 3rd oil circuit between main hydraulic fluid port B and two secondary hydraulic fluid port B1, the B2; The first, the 3rd logical valve links to each other with first main valve, and the second, the 4th logical valve links to each other with second main valve, and first, second main valve links to each other with first shuttle valve through the second, the 4th shuttle valve respectively; Second shuttle valve links to each other with the 3rd shuttle valve; The 3rd shuttle valve links to each other with the first, the 3rd logical valve respectively, and the 4th shuttle valve links to each other with the 5th shuttle valve, and the 5th shuttle valve links to each other with the second, the 4th logical valve respectively.
Said first, second main valve is a solenoid directional control valve, to realize master control.
Said first, second, third, fourth logical valve is used to carry out opening and closing of working connection, realizes that oil circuit switches.
Said first～the 5th shuttle valve after being used for input oil pressure and output oil pressure compared, makes MTP pass through first or second master control solenoid directional control valve introducing logical valve, thereby controls opening and closing of corresponding hydraulic fluid port.
The utlity model has following beneficial effect and advantage: adopt such scheme; Can switch the big flow oil circuit of hydraulic pressure; Make its pressure oil flow that passes through reach 600L/min; Can not only carry out big flow oil circuit and switch, and can prevent induced pressure from playing a reversed role and influence control or upset the accurate switching of oil circuit, make the control of oil circuit stable, accurately.
Description of drawings
Fig. 1 is the hydraulic schematic diagram of the utility model;
Fig. 2 is the structural front view of the utility model;
Fig. 3 is the plan view of Fig. 2.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be further described.
The big flow oil circuit switching control valve that the utility model provides; Comprise valve body 1, be located at hydraulic fluid port A, B, A1, A2, B1, B2 on the valve body 1, be located in the valve body 1 and the oil circuit 16,7,14 that is communicated with hydraulic fluid port; Be provided with the control valve group on the oil circuit in valve body 1; Specifically: the hydraulic fluid port on the said valve body 1 is made as two main hydraulic fluid port A and the B that is interconnected, two the secondary hydraulic fluid port A1, the A2 that are communicated with main hydraulic fluid port A, two the secondary hydraulic fluid port B1, the B2 that are communicated with main hydraulic fluid port B; Wherein, on first oil circuit 16 between two main hydraulic fluid port A, the B, be provided with first shuttle valve 6; Be respectively equipped with first logical valve 5, second logical valve 8 on second oil circuit 7 between main hydraulic fluid port A and two secondary hydraulic fluid port A1, the A2; Be respectively equipped with the 3rd logical valve 15, the 4th logical valve 13 on the 3rd oil circuit 14 between main hydraulic fluid port B and two secondary hydraulic fluid port B1, the B2; First logical valve 5, the 3rd logical valve 15 are that solenoid directional control valve 2 links to each other with first main valve; Second logical valve 8, the 4th logical valve 13 are that solenoid directional control valve 11 links to each other with second main valve, and first main valve 2, second main valve 11 link to each other with first shuttle valve 6 through second shuttle valve 4, the 4th shuttle valve 9 respectively, and second shuttle valve 4 links to each other with the 3rd shuttle valve 3; The 3rd shuttle valve 3 links to each other with first logical valve 5, the 3rd logical valve 15 respectively; The 4th shuttle valve 9 links to each other with the 5th shuttle valve 10, and the 5th shuttle valve 10 links to each other with second logical valve 8, the 4th logical valve 13 respectively, and first main valve 2, second main valve 11 all link to each other with oil outlet 12 through oil circuit; Oil outlet 12 links to each other with fuel tank through oil circuit, like Fig. 1, Fig. 2, Fig. 3.
During work:
The operating mode I, when solenoid valve 2 and solenoid valve 11 no electric circuits, when promptly all being parallel work of spool:
The A mouth has pressure oil and after getting into valve body 1; Through valve 6, valve 4, valve 9, solenoid valve 2, solenoid valve 11; Get into valve 5, valve 15, valve 8, valve 13, the piston that promotes valve 5 and valve 15 moves right, and the piston of valve 8 and valve 13 is to moving to left; Thereby they are closed, so hydraulic fluid port A, A1, A2, B, B1, B2 in the valve body 1 are not connected; Same B mouth has pressure oil and after getting into valve body; Through valve 6, valve 4, valve 9, solenoid valve 2,11; Get into valve 5, valve 15, valve 8, valve 13, the piston that promotes valve 5 and valve 15 moves right, and the piston of valve 8 and valve 13 is to moving to left; Thereby they are closed, so hydraulic fluid port A, A1, A2, B, B1, B2 in the valve body 1 are not connected.
The A2 mouth has pressure oil and after getting into valve body 1, through valve 10, valve 9, solenoid valve 11, gets into valve 8 and valve 13, and the piston that promotes valve 8 and valve 13 makes them close to moving to left, so hydraulic fluid port A, A2 in the valve body 1 are not connected; Same B2 mouth has pressure oil and after getting into valve body 1, through valve 10, valve 9, solenoid valve 11, gets into valve 8 and valve 13, and the piston that promotes valve 8 and valve 13 makes them close to moving to left, so hydraulic fluid port B, B2 in the valve body 1 are not connected.
The A1 mouth has pressure oil and after getting into valve body 1, through valve 3, valve 4, solenoid valve 2, gets into valve 5 and valve 15, and the piston of promotion valve 5 and valve 15 moves right and they are closed, so hydraulic fluid port A, A1 in the valve body 1 are not connected; Same B1 mouth has pressure oil and after getting into valve body 1, through valve 3, valve 4, solenoid valve 2, gets into valve 5 and valve 15, and the piston of promotion valve 5 and valve 15 moves right and they are closed, so hydraulic fluid port B, B1 in the valve body 1 are not connected.
A, A1, A2, B, B1, when each mouthful of B2 all do not have pressure oil; All the time push piston to closed position under the spring action in valve 5,15,8,13; Make valve be in closed condition, so hydraulic fluid port A, A1, A2, B, B1, the B2 of the valve body 1 of this kind state are not connected.
The operating mode II, when solenoid valve 2 energisings (being the intersection position work of spool), during solenoid valve 11 no electric circuits (being the parallel position work of spool):
The control oil of valve 5,15 flows back to fuel tank through solenoid valve 2, oil circuit, oil outlet 12; The piston of valve 5,15 is only closed under spring action, at this moment, and when the A of valve body 1 or A1 mouth have pressure oil; Direct admission valve 5 an and piston left side is pushed away and opens this valve 5 communicates A and A1; When the B of valve body or B1 mouth had pressure oil, direct admission valve 15 an and piston left side is pushed away and opens this valve 15 communicated B and B1;
When solenoid valve 2 energisings (being the intersection position work of spool), solenoid valve 11 no electric circuits, have only A, A1 and B, B1 to communicate, all the other are obstructed.
Operating mode III: when solenoid valve 11 energisings (being the intersection position work of spool), solenoid valve 2 no electric circuits (being the parallel position work of spool):
The control oil of valve 8,13 flows back to fuel tank through solenoid valve 11, oil circuit, oil outlet 12; The piston of valve 8,13 is only closed under spring action, at this moment, and when the A of valve body or A2 mouth have pressure oil; The direct admission valve 8 and piston right side is pushed away and opens this valve 8 communicates A and A2; When the B of valve body 1 or B2 mouth had pressure oil, the direct admission valve 13 and piston right side is pushed away and opens this valve 13 communicated B and B2;
When solenoid valve 11 energisings (being the intersection position work of spool), solenoid valve 2 no electric circuits, have only A, A2 and B, B2 to communicate, all the other are obstructed.
Claims (2)
1. one kind big flow oil circuit switching control valve comprises valve body, is located at the hydraulic fluid port on the valve body, is located in the valve body and the oil circuit that is communicated with hydraulic fluid port, it is characterized in that the oil circuit in the valve body is provided with the control valve group.
2. big flow oil circuit switching control valve according to claim 1; It is characterized in that hydraulic fluid port on the said valve body is made as two main hydraulic fluid port A and the B that is interconnected; Two the secondary hydraulic fluid port A1, the A2 that are communicated with main hydraulic fluid port A; Two the secondary hydraulic fluid port B1, the B2 that are communicated with main hydraulic fluid port B wherein, are provided with first shuttle valve on first oil circuit between two main hydraulic fluid port A, the B; Be respectively equipped with first, second logical valve on second oil circuit between main hydraulic fluid port A and two secondary hydraulic fluid port A1, the A2; Be respectively equipped with the 3rd, the 4th logical valve on the 3rd oil circuit between main hydraulic fluid port B and two secondary hydraulic fluid port B1, the B2; The first, the 3rd logical valve links to each other with first main valve, and the second, the 4th logical valve links to each other with second main valve, and first, second main valve links to each other with first shuttle valve through the second, the 4th shuttle valve respectively; Second shuttle valve links to each other with the 3rd shuttle valve; The 3rd shuttle valve links to each other with the first, the 3rd logical valve respectively, and the 4th shuttle valve links to each other with the 5th shuttle valve, and the 5th shuttle valve links to each other with the second, the 4th logical valve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204457516U CN202326484U (en) | 2011-11-11 | 2011-11-11 | Switching control valve for large-flow oil path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204457516U CN202326484U (en) | 2011-11-11 | 2011-11-11 | Switching control valve for large-flow oil path |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326484U true CN202326484U (en) | 2012-07-11 |
Family
ID=46438465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204457516U Expired - Lifetime CN202326484U (en) | 2011-11-11 | 2011-11-11 | Switching control valve for large-flow oil path |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443527A (en) * | 2020-12-10 | 2021-03-05 | 徐州阿马凯液压技术有限公司 | High-flow precision flow amplifying valve |
-
2011
- 2011-11-11 CN CN2011204457516U patent/CN202326484U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443527A (en) * | 2020-12-10 | 2021-03-05 | 徐州阿马凯液压技术有限公司 | High-flow precision flow amplifying valve |
| CN112443527B (en) * | 2020-12-10 | 2023-11-07 | 徐州阿马凯液压技术有限公司 | High-flow-precision flow amplifying valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |