CN204878109U - Hydrovalve return circuit with sequential control - Google Patents
Hydrovalve return circuit with sequential control Download PDFInfo
- Publication number
- CN204878109U CN204878109U CN201520625536.2U CN201520625536U CN204878109U CN 204878109 U CN204878109 U CN 204878109U CN 201520625536 U CN201520625536 U CN 201520625536U CN 204878109 U CN204878109 U CN 204878109U
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- CN
- China
- Prior art keywords
- valve
- hydraulic fluid
- fluid port
- valve seat
- executive component
- Prior art date
- 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.)
- Withdrawn - After Issue
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- Magnetically Actuated Valves (AREA)
- Fluid-Pressure Circuits (AREA)
- Check Valves (AREA)
Abstract
The utility model discloses a hydrovalve return circuit with sequential control is provided with first disk seat hydraulic fluid port, second disk seat hydraulic fluid port on the disk seat, first disk seat hydraulic fluid port and magenetic exchange valve's first hydraulic fluid port is linked together, and magenetic exchange valve's second hydraulic fluid port is linked together through first one -way sequence valve and an execute component's no pole chamber, and an execute component's the pole chamber that has is linked together through one -way sequence valve of second and second disk seat hydraulic fluid port, the 3rd execute component's no pole chamber is linked together through first hydraulically controlled check valve and second disk seat hydraulic fluid port, and the 3rd execute component's the pole chamber that has is linked together through the third hydraulic fluid port of second hydraulically controlled check valve with magenetic exchange valve, the 2nd execute component's no pole chamber and second disk seat hydraulic fluid port are linked together, and the 2nd execute component's have pole chamber and first hydraulic fluid port are linked together. The utility model discloses can realize controlling the function of execute component sequentially -operating under certain pressure, have the improve equipment utilization ratio, reduce the cost of transportation, improve the advantage of haulage equipment commonality.
Description
Technical field
The utility model relates to hydraulic control circuit, particularly relates to the hydrovalve loop with sequence control
Background technique
Extensively there is extending means in engineering machinery field, the work of such as, lateral movement mechanism in hoist, fork truck, telescoping boom, ejecting mechanism, jig arm all needs to use extending means.Because engineering mechanical device generally adopts hydraulic control system, therefore, these extending meanss adopt hydraulic control system mostly.
In many occasions of engineering machinery application, need engineering machinery to carry out fork to material and get, sling, release a series of activities.And existing equipment is when completing multi-motion operation, need multiple devices with the use of, there is the poor universality of equipment, deficiency that cost of transportation is low.
Model utility content
The utility model, for the deficiencies in the prior art, provides the hydrovalve loop with sequence control having and improve Utilization ratio, reduce cost of transportation, improve haulage equipment versatility.
The utility model is solved the problems of the technologies described above by following technological means: the hydrovalve loop with sequence control comprises solenoid directional control valve, the first Pilot operated check valve, the second Pilot operated check valve, the 3rd Pilot operated check valve, the first one way sequence valve, the second one way sequence valve, the first executive component, the second executive component, the 3rd executive component, and each valve above is all installed on valve seat; Described valve seat is provided with the first valve seat hydraulic fluid port, the second valve seat hydraulic fluid port, described first valve seat hydraulic fluid port is connected with the first hydraulic fluid port of described solenoid directional control valve, second hydraulic fluid port of described solenoid directional control valve is connected by the rodless cavity of described first one way sequence valve with described first executive component, and the rod chamber of described first executive component is connected with described second valve seat hydraulic fluid port by described second one way sequence valve; The rodless cavity of described 3rd executive component is connected with described second valve seat hydraulic fluid port by the first Pilot operated check valve, and the rod chamber of described 3rd executive component is connected with the 3rd hydraulic fluid port of described solenoid directional control valve by the second Pilot operated check valve; The rodless cavity of described second executive component is connected with described second valve seat hydraulic fluid port, and the rod chamber of described second executive component is connected with described first hydraulic fluid port valve seat; The outside of described first valve seat hydraulic fluid port, the outside of the second valve seat hydraulic fluid port are all connected with fuel tank.
Preferably: on the oil circuit control of described hydraulic system, be also parallel with throttle valve, one end of described throttle valve is connected with described first valve seat hydraulic fluid port, and the other end of described throttle valve is connected with described second valve seat hydraulic fluid port.
Preferably: the outside of described first valve seat hydraulic fluid port, the outside of the second valve seat hydraulic fluid port are connected with described fuel tank by three position four-way electromagnetic valve.
The utility model has the advantage of:
(1) when the first valve seat hydraulic fluid port oil-feed and solenoid directional control valve must not electricity time, the 3rd Pilot operated check valve one direction shut-off, the second one way sequence valve one direction shut-off, the piston rod of the second executive component shrinks; After the piston rod of the second executive component shrinks and puts in place, and when pressure reaches the cracking pressure of the first sequence valve, the first one way sequence valve is opened under oil circuit control effect, the piston rod stretching motion of the first executive component;
(2) after the piston rod stretching motion of the first executive component puts in place, solenoid directional control valve obtains electric, 3rd Pilot operated check valve one direction shut-off, first one way sequence valve one direction shut-off, first executive component stop motion, second Pilot operated check valve one direction shut-off, the first Pilot operated check valve is opened, and the piston rod of the 3rd executive component shrinks, solenoid directional control valve power-off after motion puts in place, oil return returns fuel tank by the second valve seat hydraulic fluid port;
(3) when the second valve seat hydraulic fluid port oil-feed and solenoid directional control valve is not charged time, 3rd Pilot operated check valve is opened, the second Pilot operated check valve is opened, after the piston rod reset of the second executive component, and pressure is when reaching the cracking pressure of the second sequence valve, second one way sequence valve is opened under oil circuit control effect, the piston rod of the first executive component resets, the first Pilot operated check valve and the first one way sequence valve one direction shut-off, and the 3rd executive component pressurize is motionless;
(4) after the piston rod of the first executive component resets, solenoid directional control valve is charged, first one way sequence valve one direction shut-off, 3rd Pilot operated check valve is opened, the second Pilot operated check valve is opened, the first Pilot operated check valve one direction shut-off, the 3rd piston rod element returns performed, after motion puts in place, solenoid directional control valve power-off, oil return returns fuel tank by the first valve seat hydraulic fluid port.
The utility model realizes the first executive component, the second executive component, the 3rd executive component sequential movements by the working state of each valve in control valve seat, and then improves Utilization ratio, reduction cost of transportation, raising haulage equipment versatility.
Accompanying drawing explanation
Fig. 1 is the structural representation that the hydrovalve loop with sequence control of the present utility model is integrated on valve body;
During Fig. 2, the utility model has the principle schematic in the hydrovalve loop of sequence control.
Specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
As shown in Figure 1-2, the present embodiment has the hydrovalve loop of sequence control, comprises solenoid directional control valve 1, first Pilot operated check valve 2, second Pilot operated check valve 3, the 3rd Pilot operated check valve 4, first one way sequence valve 5, second one way sequence valve 6, throttle valve 7, first executive component 8, second executive component 9, the 3rd executive component 10, above each valve be all installed on valve seat 11; Described valve seat 11 is provided with the first valve seat hydraulic fluid port 12, second valve seat hydraulic fluid port 13; Described first valve seat hydraulic fluid port 12 is connected with the first hydraulic fluid port of described solenoid directional control valve 1, the rodless cavity that second hydraulic fluid port of described solenoid directional control valve 1 performs 8, unit by described first one way sequence valve 5 and described first is connected, and the rod chamber of described first executive component 8 is connected with described second valve seat hydraulic fluid port 13 by described second one way sequence valve 6; The rodless cavity of described 3rd executive component 10 is connected with described second valve seat hydraulic fluid port 13 by the first Pilot operated check valve 2, and the rod chamber of described 3rd executive component 10 is connected with the 3rd hydraulic fluid port of described solenoid directional control valve 1 by the second Pilot operated check valve 3; The rodless cavity of described second executive component 9 is connected with described second valve seat hydraulic fluid port 13, and the rod chamber of described second executive component 9 is connected with described first valve seat hydraulic fluid port 12 by the 3rd Pilot operated check valve 4; The outside of described first valve seat hydraulic fluid port 12, the outside of the second valve seat hydraulic fluid port 13 are all connected with fuel tank 14; Throttle valve 7 is connected in parallel on oil circuit control, and one end of throttle valve 7 is connected with described first valve seat hydraulic fluid port 12, and the other end of described throttle valve 7 is connected with described second valve seat hydraulic fluid port 13.
Described first valve seat hydraulic fluid port 12, second valve seat hydraulic fluid port 13 is connected with described fuel tank 14 by three position four-way electromagnetic valve 15.
Oil hydraulic pump 16 is provided with between described three position four-way electromagnetic valve 15 and described fuel tank 14.
When the first valve seat hydraulic fluid port 12 oil-feed and solenoid directional control valve 1 must not electricity time, the 3rd Pilot operated check valve 4 one direction shut-off, the second one way sequence valve 6 one direction shut-off, the piston rod of the second executive component 9 shrinks; After the piston rod of the second executive component 9 shrinks and puts in place, and when pressure reaches the cracking pressure of the first sequence valve 5, the first one way sequence valve 5 is opened under oil circuit control effect, the piston rod stretching motion of the first executive component 8; After the piston rod stretching motion of the first executive component 8 puts in place, solenoid directional control valve 1 obtains electric, 3rd Pilot operated check valve 4 one direction shut-off, first one way sequence valve 5 one direction shut-off, the piston rod stop motion of the first executive component 8, the second Pilot operated check valve 3 one direction shut-off, first Pilot operated check valve 2 is opened, the piston rod of the 3rd executive component 10 shrinks, and solenoid directional control valve 1 power-off after motion puts in place, oil return returns fuel tank 14 by the second valve seat hydraulic fluid port 13.
When the second valve seat hydraulic fluid port 13 oil-feed and solenoid directional control valve 1 is not charged time, 3rd Pilot operated check valve 4 is opened, the second Pilot operated check valve 3 is opened, after second executive component 9 resets and pressure reaches the cracking pressure of the second sequence valve 6 time, second one way sequence valve 6 is opened under oil circuit control effect, the piston rod of the first executive component 8 resets, first Pilot operated check valve 2 and the first one way sequence valve 5 one direction shut-off, the 3rd executive component 10 pressurize is motionless; After the piston rod of the first executive component 8 resets, solenoid directional control valve 1 obtains electric, first one way sequence valve 5 one direction shut-off, 3rd Pilot operated check valve 4 is opened, the second Pilot operated check valve 3 is opened, the first Pilot operated check valve 2 one direction shut-off, 3rd executive component 10 resets, after motion puts in place, solenoid directional control valve 1 power-off, oil return returns fuel tank 14 by the first valve seat hydraulic fluid port 12.
The foregoing is only the preferred embodiment that the utility model is created; do not create in order to limit the utility model; the any amendment done within all spirit of creating at the utility model and principle, equivalent to replace and improvement etc., all should be included within protection domain that the utility model creates.
Claims (3)
1. there is the hydrovalve loop of sequence control, it is characterized in that: comprise solenoid directional control valve, the first Pilot operated check valve, the second Pilot operated check valve, the 3rd Pilot operated check valve, the first one way sequence valve, the second one way sequence valve, the first executive component, the second executive component, the 3rd executive component, each valve above is all installed on valve seat; Described valve seat is provided with the first valve seat hydraulic fluid port, the second valve seat hydraulic fluid port, described first valve seat hydraulic fluid port is connected with the first hydraulic fluid port of described solenoid directional control valve, second hydraulic fluid port of described solenoid directional control valve is connected by the rodless cavity of described first one way sequence valve with described first executive component, and the rod chamber of described first executive component is connected with described second valve seat hydraulic fluid port by described second one way sequence valve; The rodless cavity of described 3rd executive component is connected with described second valve seat hydraulic fluid port by the first Pilot operated check valve, and the rod chamber of described 3rd executive component is connected with the 3rd hydraulic fluid port of described solenoid directional control valve by the second Pilot operated check valve; The rodless cavity of described second executive component is connected with described second valve seat hydraulic fluid port, and the rod chamber of described second executive component is connected with described first hydraulic fluid port valve seat; The outside of described first valve seat hydraulic fluid port, the outside of the second valve seat hydraulic fluid port are all connected with fuel tank.
2. the hydrovalve loop with sequence control according to claim 1, it is characterized in that: on the oil circuit control of described hydraulic system, be also parallel with throttle valve, one end of described throttle valve is connected with described first valve seat hydraulic fluid port, and the other end of described throttle valve is connected with described second valve seat hydraulic fluid port.
3. the hydrovalve loop with sequence control according to claim 1, is characterized in that: the outside of described first valve seat hydraulic fluid port, the outside of the second valve seat hydraulic fluid port are connected with described fuel tank by three position four-way electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520625536.2U CN204878109U (en) | 2015-08-18 | 2015-08-18 | Hydrovalve return circuit with sequential control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520625536.2U CN204878109U (en) | 2015-08-18 | 2015-08-18 | Hydrovalve return circuit with sequential control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878109U true CN204878109U (en) | 2015-12-16 |
Family
ID=54822486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520625536.2U Withdrawn - After Issue CN204878109U (en) | 2015-08-18 | 2015-08-18 | Hydrovalve return circuit with sequential control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204878109U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156397A (en) * | 2015-08-18 | 2015-12-16 | 安庆联动属具股份有限公司 | Hydraulic valve loop with sequential control function |
| CN106112322A (en) * | 2016-07-26 | 2016-11-16 | 南京国际船舶设备配件有限公司 | A kind of marine low-speed machine air valve welding robot workstation air-path control system |
-
2015
- 2015-08-18 CN CN201520625536.2U patent/CN204878109U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156397A (en) * | 2015-08-18 | 2015-12-16 | 安庆联动属具股份有限公司 | Hydraulic valve loop with sequential control function |
| CN106112322A (en) * | 2016-07-26 | 2016-11-16 | 南京国际船舶设备配件有限公司 | A kind of marine low-speed machine air valve welding robot workstation air-path control system |
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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: 20151216 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |