CN209838806U - Hydraulic oil circuit capable of switching sequence - Google Patents
Hydraulic oil circuit capable of switching sequence Download PDFInfo
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- CN209838806U CN209838806U CN201822242485.1U CN201822242485U CN209838806U CN 209838806 U CN209838806 U CN 209838806U CN 201822242485 U CN201822242485 U CN 201822242485U CN 209838806 U CN209838806 U CN 209838806U
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Abstract
The utility model discloses a can switch hydraulic pressure oil circuit of order supplies oil to control oil circuit and direction switching oil circuit through oil feed way P, and control oil circuit carries oil to direction switching oil circuit, starts corresponding switching-over valve and carries out the direction switching, supplies oil for the corresponding executive component of direction switching oil circuit, accomplishes the direction switching; the hydraulic oil circuit can realize sequential switching by utilizing hydraulic pressure, and has simple structure and high reliability; the device can adapt to dangerous environments such as high temperature and explosion, has wide application range, can prevent accidents caused by misoperation, and has high safety. The utility model discloses a can switch hydraulic circuit of order can realize that two or more than two mechanism logic order switch, guarantees simultaneously that the system can not respond under the maloperation condition, prevents to take place to damage equipment.
Description
Technical Field
The utility model belongs to the technical field of hydraulic system, concretely relates to can switch hydraulic circuit of order.
Background
Two or more mechanisms in the mechanical equipment need to work in a sequential logic sequence, and the conventional logic sequence switching adopts an electric control mode or a hydraulic and electric combined control mode; this approach has the following limitations and disadvantages: (1) in the working process, the sequential action of the mechanism can be realized only by combining an electric loop and a hydraulic loop, if the electric loop fails, equipment can be damaged, even personal injury accidents can occur, and the reliability is low; (2) when the device is used in special environments such as explosion prevention and high temperature, electricity is a dangerous point source, if an electrical control sequence is adopted for action, the danger is high, the cost is increased, and the device is not suitable for being used in special environments such as explosion prevention and high temperature; (3) when in use, two sets of electric and hydraulic systems are combined, so that the complexity and maintenance cost of the system are increased; (4) in general, on the occasion with the requirement of sequential switching, the logic sequence is that the mechanism which is started first is closed later, and the mechanism which is started later is closed first; the existing hydraulic circuit for realizing sequential switching can not realize the function of preventing misoperation, and once the misoperation occurs, equipment damage and even personal injury accidents can be caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can switch hydraulic circuit in order can prevent that the order from switching the maloperation, can adapt to again in high temperature, the explosion-proof special environment.
The utility model adopts the technical proposal that: a hydraulic oil circuit capable of switching sequences comprises an oil supply circuit P, wherein the oil supply circuit P is respectively connected with a control oil circuit and a direction switching oil circuit; the control oil path is communicated with a pilot oil return path L, and the direction switching oil path is communicated with an oil return path T;
the control oil way comprises a first manual reversing valve communicated with the oil supply way P, and the first manual reversing valve is sequentially communicated with a second manual reversing valve and a third manual reversing valve through an oil conveying pipe;
the first manual reversing valve, the second manual reversing valve and the third manual reversing valve are all communicated with the pilot oil return path L through oil conveying pipes;
the direction switching oil way comprises a first hydraulic control reversing valve, a second hydraulic control reversing valve and a third hydraulic control reversing valve which are respectively communicated with the oil supply way P, and the first hydraulic control reversing valve, the second hydraulic control reversing valve and the third hydraulic control reversing valve are all connected with an executing device;
the first manual reversing valve is communicated with the first hydraulic control reversing valve through an oil conveying pipe; the second manual reversing valve is communicated with the second hydraulic control reversing valve through an oil pipeline; the third manual reversing valve is communicated with a third hydraulic control reversing valve through an oil conveying pipe;
the first hydraulic control reversing valve, the second hydraulic control reversing valve and the third hydraulic control reversing valve are communicated with the oil return path T through oil conveying pipes.
The utility model is also characterized in that,
a pressure reducing valve is arranged between the oil supply passage P and the first manual reversing valve.
An oil outlet of the second manual reversing valve is communicated with a first throttling valve through an oil conveying pipe;
an oil outlet of the third manual reversing valve is communicated with a second throttling valve through an oil conveying pipe.
An oil outlet of the first manual reversing valve is respectively communicated with an oil inlet of the second manual reversing valve and a control port of the first hydraulic control reversing valve through an oil conveying pipe;
an oil outlet of the second manual reversing valve is communicated with an oil inlet of the first throttling valve, an oil inlet of the third manual reversing valve and a control port of the second hydraulic control reversing valve through an oil conveying pipe;
an oil outlet of the first throttle valve is communicated with a control port of the first manual reversing valve through an oil conveying pipe;
an oil outlet of the third manual reversing valve is communicated with an oil inlet of the second throttling valve and a control port of the third hydraulic control reversing valve through an oil conveying pipe;
an oil outlet of the second throttle valve is communicated with a control port of the second manual reversing valve through an oil conveying pipe.
Oil return ports of the first manual reversing valve, the second manual reversing valve and the third manual reversing valve are communicated with a pilot oil return path L through oil conveying pipes.
The execution device comprises a first execution element, a second execution element and a third execution element;
one end of the first hydraulic control reversing valve is communicated with the oil supply passage P through an oil conveying pipe, and the other end of the first hydraulic control reversing valve is connected with the first executing element;
one end of the second hydraulic control reversing valve is communicated with the oil supply passage P through an oil conveying pipe, and the other end of the second hydraulic control reversing valve is connected with the second execution element;
one end of the third hydraulic control reversing valve is communicated with the oil supply passage P through an oil conveying pipe, and the other end of the third hydraulic control reversing valve is connected with the third executing element.
The first actuator, the second actuator and the third actuator are motors or oil cylinders.
The first manual reversing valve, the second manual reversing valve and the third manual reversing valve are all two-position three-way manual reversing valves with hydraulic limiting.
The first hydraulic control reversing valve, the second hydraulic control reversing valve and the third hydraulic control reversing valve are two-position four-way hydraulic control reversing valves.
The utility model has the advantages that: the utility model discloses a can switch hydraulic pressure oil circuit of order, through oil feed way P to control oil circuit and direction switching oil circuit fuel feeding, the control oil circuit carries oil to direction switching oil circuit, starts corresponding switching-over valve and carries out the direction switching, for the corresponding executive component fuel feeding of direction switching oil circuit, accomplishes the direction switching; the hydraulic oil circuit can realize sequential switching by utilizing hydraulic pressure, and has simple structure and high reliability; the device can adapt to dangerous environments such as high temperature and explosion, has wide application range, can prevent accidents caused by misoperation, and has high safety. The utility model discloses a can switch hydraulic circuit of order can realize that two or more than two mechanism logic order switch, guarantees simultaneously that the system can not respond under the maloperation condition, prevents to take place to damage equipment.
Drawings
Fig. 1 is a schematic structural diagram of a hydraulic oil circuit capable of switching sequences according to the present invention.
In the figure, 1 is a reducing valve, 2 is a first manual reversing valve, 3 is a second manual reversing valve, 4 is a first throttling valve, 5 is a third manual reversing valve, 6 is a second throttling valve, 7 is a first execution element, 8 is a first hydraulic control reversing valve, 9 is a second execution element, 10 is a second hydraulic control reversing valve, 11 is a third execution element, and 12 is a third hydraulic control reversing valve.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model provides a hydraulic oil circuit capable of switching orders, as shown in figure 1, comprising an oil supply circuit P, wherein the oil supply circuit P is respectively connected with a control oil circuit and a direction switching oil circuit; the control oil path is communicated with a pilot oil return path L, and the direction switching oil path is communicated with an oil return path T;
the control oil way comprises a first manual reversing valve 2 communicated with the oil supply way P, and the first manual reversing valve 2 is sequentially communicated with a second manual reversing valve 3 and a third manual reversing valve 5 through an oil conveying pipe;
the first manual reversing valve 2, the second manual reversing valve 3 and the third manual reversing valve 5 are all communicated with the pilot oil return path L through oil conveying pipes;
the direction switching oil path comprises a first hydraulic control reversing valve 8, a second hydraulic control reversing valve 10 and a third hydraulic control reversing valve 12 which are respectively communicated with the oil supply path P, and the first hydraulic control reversing valve 8, the second hydraulic control reversing valve 10 and the third hydraulic control reversing valve 12 are all connected with an executing device;
the first manual reversing valve 2 is communicated with a first hydraulic control reversing valve 8 through an oil pipeline; the second manual reversing valve 3 is communicated with a second hydraulic control reversing valve 10 through an oil pipeline; the third manual reversing valve 5 is communicated with a third hydraulic control reversing valve 12 through an oil pipeline;
the first hydraulic control reversing valve 8, the second hydraulic control reversing valve 10 and the third hydraulic control reversing valve 12 are all communicated with the oil return path T through oil conveying pipes.
A pressure reducing valve 1 is arranged between the oil supply path P and the first manual reversing valve 2.
An oil outlet of the first manual reversing valve 2 is respectively communicated with an oil inlet of the second manual reversing valve 3 and a control port of the first hydraulic control reversing valve 8 through an oil conveying pipe;
an oil outlet of the second manual reversing valve 3 is respectively communicated with an oil inlet of the first throttle valve 4, an oil inlet of the third manual reversing valve 5 and a control port of the second hydraulic control reversing valve 10 through an oil conveying pipe;
an oil outlet of the first throttle valve 4 is communicated with a control port of the first manual reversing valve 2 through an oil pipeline;
an oil outlet of the third manual reversing valve 5 is communicated with an oil inlet of the second throttle valve 6 and a control port of the third hydraulic control reversing valve 12 through an oil conveying pipe;
an oil outlet of the second throttle valve 6 is communicated with a control port of the second manual reversing valve 3 through an oil pipeline.
The oil return ports of the first manual reversing valve 2, the second manual reversing valve 3 and the third manual reversing valve 5 are all communicated with a pilot oil return path L through oil conveying pipes.
The actuating device comprises a first actuating element 7, a second actuating element 9 and a third actuating element 11;
one end of the first hydraulic control reversing valve 8 is communicated with the oil supply passage P through an oil conveying pipe, and the other end of the first hydraulic control reversing valve 8 is connected with the first executing element 7;
one end of a second hydraulic control reversing valve 10 is communicated with the oil supply passage P through an oil conveying pipe, and the other end of the second hydraulic control reversing valve 10 is connected with a second execution element 9;
one end of the third hydraulic control directional control valve 12 is communicated with the oil supply passage P through an oil delivery pipe, and the other end of the third hydraulic control directional control valve 12 is connected with the third execution element 11.
The first actuator 7, the second actuator 9 and the third actuator 11 are motors or oil cylinders.
The first manual reversing valve 2, the second manual reversing valve 3 and the third manual reversing valve 5 are all two-position three-way manual reversing valves with hydraulic limiting.
The first hydraulic control reversing valve 8, the second hydraulic control reversing valve 10 and the third hydraulic control reversing valve 12 are two-position four-way hydraulic control reversing valves.
The utility model provides a can switch the working process of sequential hydraulic pressure oil circuit:
1. the working process of sequential switching:
the first actuator 7, the second actuator 9 and the third actuator 11 are all in the initial positions, the first manual reversing valve 2 is operated, the oil inlet A1 and the oil outlet B1 of the first manual reversing valve 2 are communicated, and the first manual reversing valve 2 divides the oil into two paths to be delivered: one path of the delivered oil is delivered to an oil control port F6 of the first hydraulic control reversing valve 8, and the first hydraulic control reversing valve 8 is pressurized to enable the port A6 to be communicated with the port D6, so that the movement direction of the first execution element 7 is controlled to be changed, and the action switching is completed; the other path of oil is conveyed to an oil inlet A2 of the second manual reversing valve 3, and at the moment, the second manual reversing valve 3 is manually operated, so that the oil inlet A2 is communicated with an oil outlet B2; the second manual reversing valve 3 divides the oil into two paths again for conveying, one path of the oil is conveyed to the second hydraulic control reversing valve 10, and the control oil port F7 of the second hydraulic control reversing valve 10 is subjected to pressure to enable the port A7 to be communicated with the port D7, so that the movement direction of the second execution element 9 is controlled to be changed, and switching is completed; the other path of oil is delivered to a third manual reversing valve 5, at the moment, the third manual reversing valve 5 is manually operated, so that an oil inlet A3 of the third manual reversing valve 5 is communicated with an oil outlet B3, the third manual reversing valve 5 delivers the oil to a control port F8 of a third hydraulic control reversing valve 12, and the third hydraulic control reversing valve 12 is pressurized to enable an A8 port and a D8 port of the third hydraulic control reversing valve 12 to be communicated, so that the movement direction of a third execution element 11 is controlled to be changed, and the switching is completed; in summary, the hydraulic circuit realizes sequential switching of the first actuator 7, the second actuator 9 and the third actuator 11.
2. The working process of preventing misoperation:
when the third manual reversing valve 5 is in an opening state, the port A3 is communicated with the port B3, the pressure oil is divided into two paths from the port B3, and one path drives the third hydraulic control reversing valve 12 to enable the third executing element 11 to be switched to be in a working state; the other path of the pressure is acted on a control port D2 of the second manual reversing valve through a second throttle valve 6, so that the second manual reversing valve 3 is kept in an operating state; when the third manual reversing valve 5 is closed, the hydraulic oil at the D2 port of the second manual reversing valve 3 can be drained slowly through the second throttle valve 6, and the second manual reversing valve 3 can be closed after a period of time. Similarly, when the second manual directional control valve 3 is opened, the second manual directional control valve 3 can be closed only by closing the third manual directional control valve 5 first. In conclusion, the hydraulic oil circuit can prevent misoperation, and only the third manual reversing valve 5, the second manual reversing valve 3 and the first manual reversing valve 2 can be closed in sequence. The anti-misoperation is closing after the opened valve; if the valve that closes first is in the open state, the valve that closes last cannot close.
In this way, the utility model discloses a can switch hydraulic pressure oil circuit in order, oil feed way P is to the direction switching oil circuit oil feed, and through the first executive component 7 that first hydraulic control switching-over valve 8 corresponds, the second executive component 9 that second hydraulic control switching-over valve 10 corresponds, the third executive component 11 that third hydraulic control switching-over valve 12 corresponds supplies oil; meanwhile, the oil supply path P is used as a first manual directional control valve 2, a second manual directional control valve 3 and a third manual directional control valve 5 for supplying oil to the control oil path through a pressure reducing valve 1; opening the first manual reversing valve 2 to enable the oil inlet A1 to be communicated with the oil outlet B1, enabling the control oil to act on the first hydraulic control reversing valve 8, enabling the A6 of the first hydraulic control reversing valve 8 to be communicated with the D6, and accordingly changing the pressure oil supply direction of the first execution element 7 to finish switching; repeating the above actions to change the pressure oil supply direction of the second actuator 9 and the second actuator 11, and completing the switching; namely, the hydraulic oil circuit switching logic sequence is that the first executive component 7, the second executive component 9 and the third executive component 11 are switched or started in sequence; then the third actuator 11, the second actuator 9 and the first actuator 7 are switched or closed in sequence; the hydraulic oil circuit can realize sequential switching by utilizing hydraulic pressure, and has simple structure and high reliability; the device can adapt to dangerous environments such as high temperature and explosion, has wide application range, can prevent accidents caused by misoperation, and has high safety. The utility model discloses a can switch hydraulic circuit of order can realize that two or more than two mechanism logic order switch, guarantees simultaneously that the system can not respond under the maloperation condition, prevents to take place to damage equipment.
Claims (9)
1. A hydraulic oil circuit capable of switching sequences is characterized by comprising an oil supply circuit P, wherein the oil supply circuit P is respectively connected with a control oil circuit and a direction switching oil circuit; the control oil path is communicated with a pilot oil return path L, and the direction switching oil path is communicated with an oil return path T;
the control oil way comprises a first manual reversing valve (2) communicated with the oil supply way P, and the first manual reversing valve (2) is sequentially communicated with a second manual reversing valve (3) and a third manual reversing valve (5) through an oil conveying pipe;
the first manual reversing valve (2), the second manual reversing valve (3) and the third manual reversing valve (5) are communicated with the pilot oil return path L through oil conveying pipes;
the direction switching oil way comprises a first hydraulic control reversing valve (8), a second hydraulic control reversing valve (10) and a third hydraulic control reversing valve (12) which are respectively communicated with the oil supply way P, and the first hydraulic control reversing valve (8), the second hydraulic control reversing valve (10) and the third hydraulic control reversing valve (12) are all connected with an executing device;
the first manual reversing valve (2) is communicated with the first hydraulic control reversing valve (8) through an oil conveying pipe; the second manual reversing valve (3) is communicated with the second hydraulic control reversing valve (10) through an oil pipeline; the third manual reversing valve (5) is communicated with the third hydraulic control reversing valve (12) through an oil conveying pipe;
the first hydraulic control reversing valve (8), the second hydraulic control reversing valve (10) and the third hydraulic control reversing valve (12) are communicated with the oil return path T through oil conveying pipes.
2. A hydraulic circuit capable of switching order according to claim 1, characterized in that a pressure reducing valve (1) is provided between the oil supply path P and the first manual directional change valve (2).
3. A hydraulic circuit capable of switching sequences according to claim 1, characterized in that the oil outlet of the second manual directional control valve (3) is communicated with a first throttle valve (4) through an oil delivery pipe;
and an oil outlet of the third manual reversing valve (5) is communicated with a second throttling valve (6) through an oil conveying pipe.
4. A hydraulic circuit capable of switching sequences according to claim 3, characterized in that the oil outlet of the first manual directional control valve (2) is respectively communicated with the oil inlet of the second manual directional control valve (3) and the control port of the first hydraulic directional control valve (8) through oil pipelines;
an oil outlet of the second manual reversing valve (3) is communicated with an oil inlet of the first throttle valve (4), an oil inlet of the third manual reversing valve (5) and a control port of the second hydraulic control reversing valve (10) through an oil conveying pipe;
an oil outlet of the first throttle valve (4) is communicated with a control port of the first manual reversing valve (2) through an oil conveying pipe;
an oil outlet of the third manual reversing valve (5) is communicated with an oil inlet of the second throttling valve (6) and a control port of the third hydraulic control reversing valve (12) through an oil conveying pipe;
and an oil outlet of the second throttle valve (6) is communicated with a control port of the second manual reversing valve (3) through an oil conveying pipe.
5. A hydraulic circuit capable of switching sequences according to claim 4, characterized in that the oil return ports of the first manual directional control valve (2), the second manual directional control valve (3) and the third manual directional control valve (5) are all communicated with the pilot oil return line L through oil delivery pipes.
6. A hydraulic circuit able to switch orders as claimed in claim 4, characterised in that said actuator means comprise a first actuator (7), a second actuator (9) and a third actuator (11);
one end of the first hydraulic control reversing valve (8) is communicated with an oil supply channel P through an oil conveying pipe, and the other end of the first hydraulic control reversing valve (8) is connected with the first executing element (7);
one end of the second hydraulic control reversing valve (10) is communicated with an oil supply passage P through an oil conveying pipe, and the other end of the second hydraulic control reversing valve (10) is connected with the second execution element (9);
one end of the third hydraulic control reversing valve (12) is communicated with the oil supply passage P through an oil conveying pipe, and the other end of the third hydraulic control reversing valve (12) is connected with the third executing element (11).
7. A hydraulic circuit capable of switching sequences according to claim 6, characterized in that the first actuator (7), the second actuator (9) and the third actuator (11) are motors or cylinders.
8. The hydraulic oil circuit capable of switching sequences as claimed in any one of claims 1 to 6, wherein the first manual directional control valve (2), the second manual directional control valve (3) and the third manual directional control valve (5) are two-position three-way manual directional control valves with hydraulic limiting.
9. The hydraulic circuit capable of switching sequences according to any one of claims 1 to 6, wherein the first hydraulic control directional control valve (8), the second hydraulic control directional control valve (10) and the third hydraulic control directional control valve (12) are two-position four-way hydraulic control directional control valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822242485.1U CN209838806U (en) | 2018-12-29 | 2018-12-29 | Hydraulic oil circuit capable of switching sequence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822242485.1U CN209838806U (en) | 2018-12-29 | 2018-12-29 | Hydraulic oil circuit capable of switching sequence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209838806U true CN209838806U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822242485.1U Active CN209838806U (en) | 2018-12-29 | 2018-12-29 | Hydraulic oil circuit capable of switching sequence |
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| Country | Link |
|---|---|
| CN (1) | CN209838806U (en) |
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- 2018-12-29 CN CN201822242485.1U patent/CN209838806U/en active Active
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| TR01 | Transfer of patent right |
Effective date of registration: 20201223 Address after: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province Patentee after: Baoji Oilfield Machinery Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd Address before: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province Patentee before: Baoji Oilfield Machinery Co.,Ltd. |