CN212868056U - Pneumatic-hydraulic hybrid drive control unit - Google Patents
Pneumatic-hydraulic hybrid drive control unit Download PDFInfo
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- CN212868056U CN212868056U CN202020317124.3U CN202020317124U CN212868056U CN 212868056 U CN212868056 U CN 212868056U CN 202020317124 U CN202020317124 U CN 202020317124U CN 212868056 U CN212868056 U CN 212868056U
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Abstract
The utility model discloses a pneumatic hydraulic pressure hybrid drive control unit, including pneumatic drive end, hydraulic drive end and delivery outlet, pneumatic drive end includes air inlet and pneumatic solenoid valve, the air inlet passes through pneumatic solenoid valve with the gas input-output mouth, hydraulic drive end include the oil inlet, with first electromagnetism ball valve, the oil-out of oil inlet intercommunication and with the second electromagnetism ball valve of oil-out intercommunication, the oil inlet carries fluid to the delivery outlet through first electromagnetism ball valve, hydraulic drive end's fluid passes through second electromagnetism ball valve and discharges from the oil-out, be connected with the check valve who blocks fluid between pneumatic drive end and the hydraulic drive end. In this way, the utility model discloses pneumatic hydraulic pressure hybrid drive the control unit, can realize the same output pipeline of pneumatic drive and hydraulic drive sharing, save the system cost, save space, improve control efficiency.
Description
Technical Field
The utility model relates to a drive control field especially relates to a pneumatic hydraulic pressure hybrid drive control unit.
Background
The hydraulic control and the pneumatic control have the same control principle, but the hydraulic control and the pneumatic control are applied to different working conditions, for example, a pneumatic system has higher response speed due to low gas viscosity, but the working pressure is low (generally less than 1 MPa) due to high compressibility of gas; the compressibility of liquid of the hydraulic system is obviously higher than that of small gas, so that the working pressure of the hydraulic system is obviously higher than that of a pneumatic system (usually reaching 30 Mpa), but the response speed is lower than that of the pneumatic system due to the high viscosity of oil, and meanwhile, the energy loss is large in the process of transmitting energy in a long distance.
In some practical application occasions, an actuating mechanism needs to perform quick response action under the condition of no load (small load) and output force is increased when the actuating mechanism contacts the load (the load is increased quickly), and the situation needs to combine the two modes to fully utilize the quick response characteristic of a pneumatic system and the heavy load characteristic of a hydraulic system.
Also in some occasions, the pneumatic system is used for driving a small load under normal working conditions, when the load and an actuating mechanism are stuck, the output force of the pneumatic system cannot overcome the clamping force, so that the load is stuck, and the situation also needs intervention of hydraulic control.
In order to realize the fast movement without load (low load) and the slow movement with heavy load, the following two methods are mainly adopted at present:
1. pure hydraulic drive: this mode can normally satisfy the operating mode of low-speed heavy load, but in order to realize unloaded (low-load) quick motion, need be equipped with large-traffic output hydraulic pump, or be equipped with great volume energy storage ware, need be equipped with extra benefit oil facility simultaneously. In order to realize high-speed movement, a high-flow pump, an energy accumulator, an oil supplementing facility and other equipment are required to be added in the pure hydraulic drive, meanwhile, in order to adapt to high flow, a pipeline corresponding to a hydraulic system needs to be increased, the volume of a corresponding oil tank needs to be increased, and the cost of the whole system is greatly increased.
2. Pure air pressure driving: the mode can normally meet the working condition of no-load (low-load) quick movement, but in order to realize heavy-load low-speed movement, large output force needs to be realized under the condition of low system pressure, so that the cylinder diameter of the oil cylinder needs to be multiplied (the displacement of the motor is increased), and after the cylinder diameter (the displacement) is increased, larger air flow is needed correspondingly under the high-speed working condition. Pure pneumatic drive is for satisfying the heavy load operating mode, and the cylinder diameter (air motor discharge capacity) needs the multiple increase, and the pipeline latus rectum during high-speed motion, air supply volume all need increase substantially, leads to system occupation space to increase, and the cost increases.
Disclosure of Invention
The utility model discloses the main technical problem who solves provides a pneumatic hydraulic pressure hybrid drive control unit, can realize the same output pipeline of pneumatic drive and hydraulic drive sharing, saves the system cost, saves space, improves control efficiency.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a pneumatic hydraulic pressure hybrid drive control unit, including pneumatic drive end, hydraulic drive end and delivery outlet, pneumatic drive end includes air inlet and pneumatic solenoid valve, the air inlet passes through pneumatic solenoid valve with gaseous input/output port, hydraulic drive end includes oil inlet, the first electromagnetism ball valve, the oil-out that communicate with the oil inlet and the second electromagnetism ball valve that communicates with the oil-out, the oil inlet carries fluid to the delivery outlet through first electromagnetism ball valve, hydraulic drive end's fluid passes through second electromagnetism ball valve and discharges from the oil-out, be connected with the check valve who blocks fluid between pneumatic drive end and the hydraulic drive end.
In a preferred embodiment of the present invention, the inlet of the check valve is connected to the pneumatic driving end, and the outlet is connected to the hydraulic driving end.
In a preferred embodiment of the present invention, the oil port P of the first electromagnetic ball valve is communicated with the oil inlet, the oil port a is communicated with the delivery outlet, the oil port a of the second electromagnetic ball valve is communicated with the delivery outlet, and the oil port P is communicated with the oil outlet.
In a preferred embodiment of the present invention, the outlet of the check valve is communicated with the oil port a.
In a preferred embodiment of the present invention, a collection port for collecting leaked oil is further provided between the check valve and the pneumatic solenoid valve.
In a preferred embodiment of the present invention, the oil inlet is further connected to a pressure measuring port.
In a preferred embodiment of the present invention, the first electromagnetic ball valve is opened, the second electromagnetic ball valve is closed, and the pneumatic solenoid valve is closed, so that the hydraulic drive end outputs power to the output port.
In a preferred embodiment of the present invention, the first electromagnetic ball valve is closed, the second electromagnetic ball valve is closed, and the pneumatic solenoid valve is opened to make the pneumatic driving end output power to the output port.
The utility model has the advantages that: the utility model discloses pneumatic hydraulic pressure hybrid drive control unit can realize the same output pipeline of pneumatic drive and hydraulic drive sharing, saves the system cost, saves space, improves control efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
FIG. 1 is a schematic diagram illustrating the control principle of a preferred embodiment of the pneumatic-hydraulic hybrid drive control unit according to the present invention;
the parts in the drawings are numbered as follows: 1. pneumatic drive end, 11, pneumatic solenoid valve, 2, hydraulic drive end, 21, first electromagnetism ball valve, 22, second electromagnetism ball valve, 3, check valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, a pneumatic-hydraulic hybrid drive control unit includes a pneumatic drive end 1, a hydraulic drive end 2 and an output port PL, the pneumatic drive end 1 includes an air inlet P2 and a pneumatic solenoid valve 11, the air inlet P2 inputs air into the output port PL through the pneumatic solenoid valve 21, the hydraulic drive end 2 includes an oil inlet P1, a first solenoid ball valve 21 communicated with the oil inlet P1, an oil outlet T and a second solenoid ball valve 22 communicated with the oil outlet T, the oil inlet P1 conveys oil to the output port PL through the first solenoid ball valve 21, the oil at the hydraulic drive end 2 is discharged from the oil outlet T through the second solenoid ball valve 22, and a check valve 3 for blocking the oil is connected between the pneumatic drive end 1 and the hydraulic drive end 2.
In addition, the inlet of the one-way valve 3 is communicated with the pneumatic driving end 1, and the outlet is communicated with the hydraulic driving end 2.
In addition, the oil port P of the first electromagnetic ball valve 21 is communicated with the oil inlet P1, the oil port a is communicated with the output port PL, the oil port a of the second electromagnetic ball valve 22 is communicated with the output port PL, and the oil port P is communicated with the oil outlet T.
Further, the outlet of the check valve 3 communicates with the oil port a.
In addition, a collection port C for collecting leaked oil is provided between the check valve 3 and the pneumatic solenoid valve 11.
In addition, the oil inlet P1 is also connected with a pressure measuring port MP.
Further, the first electromagnetic ball valve 21 is opened, the second electromagnetic ball valve 22 is closed, and the pneumatic solenoid valve 11 is closed, so that the hydraulic drive end 2 outputs power to the output port PL.
Further, when the first electromagnetic ball valve 21 is closed, the second electromagnetic ball valve 22 is closed, and the pneumatic solenoid valve 11 is opened, the pneumatic drive end 1 outputs power to the output port PL.
The utility model discloses pneumatic hydraulic pressure hybrid drive control unit concrete theory of operation as follows: when the system needs hydraulic control (low-speed heavy-load working condition), the first electromagnetic ball valve 21 is powered on and opened, the second electromagnetic ball valve 22 is powered on and closed, oil in the oil inlet P1 is transmitted to the output port PL through the first electromagnetic ball valve 21, at the moment, because the pressure of the hydraulic side is higher than that of the pneumatic side, the one-way valve 3 is closed, the pneumatic driving end 1 and the hydraulic driving end 2 are disconnected through the one-way valve 3, because the one-way valve 3 (reverse leakage exists, little oil can be leaked to the pneumatic side through the one-way valve 3 during closing to influence the work of pneumatic elements, and therefore a leakage residual oil collecting port C is arranged at a position, lower than a pneumatic loop, of the pneumatic side outlet of the one-way valve 3, and leakage.
When the system needs pneumatic control (high-speed light-load working condition), the first electromagnetic ball valve 21 is closed, oil supply is stopped, the second electromagnetic ball valve 22 is opened, and oil in the hydraulic drive end 2 loop is discharged through the oil outlet T1. Then the pneumatic electromagnetic valve 11 is electrified to be opened, the second electromagnetic ball 22 is electrified to be closed, high-speed gas is input through the gas inlet P2, and the check valve 3 is jacked open through the pneumatic electromagnetic valve 11 and is output to the output port PL.
Be different from prior art, the utility model discloses pneumatic hydraulic pressure hybrid drive the control unit, can realize the same load of pneumatic and hydraulic drive, hydraulic drive when carrying (no-load) at a high speed with pneumatic drive low-speed heavy load, two kinds of control methods of make full use of save the system cost, save space, improve control efficiency.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.
Claims (8)
1. The utility model provides a pneumatic hydraulic pressure hybrid drive control unit, its characterized in that, includes pneumatic drive end, hydraulic drive end and delivery outlet, pneumatic drive end includes air inlet and pneumatic solenoid valve, the air inlet passes through pneumatic solenoid valve with gaseous input/output port, hydraulic drive end includes the oil inlet, with first electromagnetism ball valve, the oil-out of oil inlet intercommunication and with the second electromagnetism ball valve of oil-out intercommunication, the oil inlet carries fluid to the delivery outlet through first electromagnetism ball valve, hydraulic drive end's fluid is discharged from the oil-out through second electromagnetism ball valve, be connected with the check valve who blocks fluid between pneumatic drive end and the hydraulic drive end.
2. The aero-hydraulic hybrid drive control unit of claim 1, wherein the one-way valve has an inlet in communication with the pneumatic drive end and an outlet in communication with the hydraulic drive end.
3. The pneumatic-hydraulic hybrid drive control unit according to claim 2, wherein the oil port P of the first electromagnetic ball valve is communicated with the oil inlet, the oil port a is communicated with the output port, the oil port a of the second electromagnetic ball valve is communicated with the output port, and the oil port P is communicated with the oil outlet.
4. The pneumatic-hydraulic hybrid drive control unit of claim 3, wherein the outlet of the check valve communicates with port A.
5. The pneumatic-hydraulic hybrid drive control unit according to any one of claims 1 to 4, wherein a collection port for collecting leaked oil is further provided between the check valve and the pneumatic solenoid valve.
6. The pneumatic-hydraulic hybrid drive control unit of claim 5, wherein a pressure measuring port is further connected to the oil inlet.
7. The pneumatic-hydraulic hybrid drive control unit according to claim 6, wherein the first electromagnetic ball valve is opened, the second electromagnetic ball valve is closed, and the pneumatic solenoid valve is closed, so that the hydraulic drive end outputs power to the output port.
8. The pneumatic-hydraulic hybrid drive control unit according to claim 6, wherein the first electromagnetic ball valve is closed, the second electromagnetic ball valve is closed, and the pneumatic solenoid valve is opened to enable the pneumatic drive end to output power to the output port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020317124.3U CN212868056U (en) | 2020-03-16 | 2020-03-16 | Pneumatic-hydraulic hybrid drive control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020317124.3U CN212868056U (en) | 2020-03-16 | 2020-03-16 | Pneumatic-hydraulic hybrid drive control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212868056U true CN212868056U (en) | 2021-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020317124.3U Active CN212868056U (en) | 2020-03-16 | 2020-03-16 | Pneumatic-hydraulic hybrid drive control unit |
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| CN (1) | CN212868056U (en) |
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2020
- 2020-03-16 CN CN202020317124.3U patent/CN212868056U/en active Active
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