CN209569211U - A kind of servo-hydraulic device - Google Patents
A kind of servo-hydraulic device Download PDFInfo
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- CN209569211U CN209569211U CN201920101059.8U CN201920101059U CN209569211U CN 209569211 U CN209569211 U CN 209569211U CN 201920101059 U CN201920101059 U CN 201920101059U CN 209569211 U CN209569211 U CN 209569211U
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- directional control
- valve
- solenoid directional
- control valve
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Abstract
The utility model discloses a kind of servo-hydraulic devices, including oil pump and oil cylinder, pump inlet pipe is connected with main fuel tank, it is characterized by: the oil inlet of the oil outlet of the oil pump and the first solenoid directional control valve, the oil inlet of second solenoid directional control valve, overflow valve and a pressure gauge are connected, first solenoid directional control valve and the second solenoid directional control valve are three position four-way electromagnetic valve, oil cylinder is the two-way ram cylinder with the first oil inlet and the second oil inlet, one oil outlet of the second solenoid directional control valve is by supporting valve to be connected with the second oil inlet of oil cylinder, another oil outlet is directly connected with the first oil inlet of oil cylinder, one oil outlet of the first solenoid directional control valve is sequentially connected pressure sensor, first oil inlet of pressure gauge and oil cylinder, the first oil inlet that another oil outlet then passes through a prefill valve oil cylinder is connected, prefill valve and the first electricity Magnetic reversal valve junction is additionally provided with an auxiliary fuel tank.
Description
Technical field
The utility model relates to a kind of hydraulic device more particularly to a kind of servo-hydraulic devices.
Background technique
Hydraulic device is very widely used in machinery field, and according to different needs of work, hydraulic mechanism not phase
Together, in traditional water swelling machine forming field, when due to forming different parts, required pressure and speed are all different, and
Traditional water swelling molding machine pressure is relatively-stationary according to equipment, and the speed of oil cylinder is also fixed, and the size of pressure
It is i.e. not visible, it is also unadjustable, so that corresponding system pressure can not be formulated according to different products, therefore there can be energy consumption
Height, it is uneconomical the disadvantages of, and forming quality of products is poor.
Utility model content
The utility model discloses a kind of servo-hydraulic devices, with so as to solve the deficiencies in the prior art.
To solve the above problems, the technical solution of the utility model is:
A kind of servo-hydraulic device, including oil pump and oil cylinder, pump inlet pipe are connected with main fuel tank, and the oil pump goes out
The oil inlet at oily end and the first solenoid directional control valve, oil inlet, overflow valve and a pressure gauge for the second solenoid directional control valve are connected, the
One solenoid directional control valve and the second solenoid directional control valve are three position four-way electromagnetic valve, and oil cylinder is with the first oil inlet and the second oil inlet
One oil outlet of the two-way ram cylinder of mouth, the second solenoid directional control valve is connected by support valve with the second oil inlet of oil cylinder,
Another oil outlet is directly connected with the first oil inlet of oil cylinder, and an oil outlet of the first solenoid directional control valve is sequentially connected pressure
First oil inlet of sensor, pressure gauge and oil cylinder, another oil outlet then pass through first oil inlet of a prefill valve oil cylinder
It is connected, prefill valve and the first solenoid directional control valve junction are additionally provided with an auxiliary fuel tank.
The oil pump is driven by servo motor.
The beneficial effects of the utility model are: passing through two three position four-way electromagnetic valves, the oil pump of servo motor driving, pressure
Sensor 7 and flow and pressure in electric elements accuracy-control system realize speed and the adjustable visible purpose of pressure controllable,
The pressing speed and pressure on the number for solving water swelling hydraulic press are precisely controlled, and servo motor is in one kind in the equipment free time
Halted state plays a kind of energy-efficient purpose, and hydraulic device can adjust the pressure of hydraulic system according to different products,
Energy consumption can be effectively reduced, improve economy, reduce the cost of manufacture of product.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure: 1- oil pump, 2- overflow valve, the first solenoid directional control valve of 3-, the second solenoid directional control valve of 4-, 5- support valve, 6- pressure
Power table, 7- pressure sensor, 8- prefill valve, 9- oil cylinder, 10- main fuel tank, 11- auxiliary fuel tank.
Specific embodiment
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing.
Referring to attached drawing 1, the utility model includes oil pump 1 and oil cylinder 9, and 1 oil inlet pipe of oil pump is connected with main fuel tank 10, described
The oil inlet of the oil outlet of oil pump 1 and the first solenoid directional control valve 3, the oil inlet of the second solenoid directional control valve 4, overflow valve 2 and one
Pressure gauge 6 is connected, and the first solenoid directional control valve 3 and the second solenoid directional control valve 4 are three position four-way electromagnetic valve, and oil cylinder 9 is with the
One oil outlet of the two-way ram cylinder of one oil inlet 91 and the second oil inlet 92, the second solenoid directional control valve 4 passes through support valve 5
It is connected with the second oil inlet 92 of oil cylinder 9, another oil outlet is directly connected with the first oil inlet 91 of oil cylinder, and the first electromagnetism changes
The first oil inlet 91 of pressure sensor 7, pressure gauge 6 and oil cylinder 9 is sequentially connected to an oil outlet of valve 3, another is fuel-displaced
Mouth is then connected by the first oil inlet 91 of 8 oil cylinder 9 of prefill valve, and prefill valve 8 is also set with the first solenoid directional control valve junction
It is equipped with an auxiliary fuel tank 11.
The oil pump 1 is driven by servo motor.
In practical applications, the first solenoid directional control valve 3 and the second solenoid directional control valve 4 are three position four-way electromagnetic valve, oil pump 1
It can realize that speed and pressure controllable can by the flow and pressure in pressure sensor 7 and electric elements accuracy-control system
Visible purpose is adjusted, is precisely controlled with solving pressing speed and the pressure on the number of water swelling hydraulic press, and servo motor is in equipment
It is in a kind of halted state when idle, plays a kind of energy-efficient purpose, sequence of movement is:
1, under master cylinder is fast: overflow valve 2 must be electric, and flow produced by oil pump 1 leads to the fast of oil cylinder 9 by the second solenoid directional control valve 4
Fast chamber promotes master cylinder fast downlink, and the oil liquid of auxiliary fuel tank 11 is full of oil cylinder by prefill valve 8 under atmospheric pressure effect at the same time
9 big chamber, the first solenoid directional control valve 3 must be electric, and 9 cavity of resorption oil liquid of oil cylinder is through supporting valve 5 to be back to main fuel tank 10.
2, master cylinder work into: overflow valve 2 it is electric, the left end of the first solenoid directional control valve 3 obtains electric, the warp of flow produced by 1 group of oil pump
Cross the first solenoid directional control valve 3 enter oil cylinder 9 epicoele realize oil cylinder 9 at a slow speed work into.
3, master cylinder pressure maintaining: oil pump 1 is in shutdown status, and all solenoid valves must not electricity.
4, master cylinder pressure release: since in-cylinder pressure is very high before 9 backhaul of oil cylinder, if do not let out to pressure in oil cylinder 9 first
Pressure, then will generate great impact and vibration when machine backhaul, overflow valve 2 and the first solenoid directional control valve left end obtain electric, oil pump 1
Prefill valve 9 is opened in produced flow control, and the high pressure oil in master cylinder is made to flow back to main fuel tank 10.
5, master cylinder backhaul: overflow valve 2 it is electric, 3 right end of the second solenoid directional control valve obtains electric, and flow produced by oil pump 1 is by second
Solenoid directional control valve 3 and support valve 5 lead to the cavity of resorption of oil cylinder 9, promote the upward backhaul of oil cylinder 9.Support valve 5 plays a supportive role.
The flow of oil pump 1 is controlled by PLC program always with pressure in entire action process, and PLC program can arbitrarily regulate and control this
Valve arbitrary parameter, to realize any regulation of the PLC program to complete machine speed and pressure, entire production process data can pass through
Pressure sensor 7 feeds back to touch screen, while the pressure of 6 energy synchronous reaction system of pressure gauge, to realize that whole machine can be done
It is controlled to real-time visual data.
Above-mentioned specific embodiment is the preferred embodiment of the utility model, can not be defined to the utility model,
Other any changes made without departing from the technical solution of the utility model or other equivalent substitute modes, are included in
Within the protection scope of the utility model.
Claims (2)
1. a kind of servo-hydraulic device, including oil pump and oil cylinder, pump inlet pipe are connected with main fuel tank, it is characterised in that: described
Oil pump oil outlet and the first solenoid directional control valve oil inlet, the oil inlet of the second solenoid directional control valve, overflow valve and a pressure
Power table is connected, and the first solenoid directional control valve and the second solenoid directional control valve are three position four-way electromagnetic valve, and oil cylinder is with the first oil inlet
The two-way ram cylinder of mouth and the second oil inlet, an oil outlet of the second solenoid directional control valve is by supporting the second of valve and oil cylinder
Oil inlet is connected, another oil outlet is directly connected with the first oil inlet of oil cylinder, an oil outlet of the first solenoid directional control valve
It is sequentially connected the first oil inlet of pressure sensor, pressure gauge and oil cylinder, another oil outlet then passes through a prefill valve oil cylinder
The first oil inlet be connected, prefill valve and the first solenoid directional control valve junction are additionally provided with an auxiliary fuel tank.
2. servo-hydraulic device according to claim 1, it is characterised in that: the oil pump is driven by servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920101059.8U CN209569211U (en) | 2019-01-19 | 2019-01-19 | A kind of servo-hydraulic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920101059.8U CN209569211U (en) | 2019-01-19 | 2019-01-19 | A kind of servo-hydraulic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209569211U true CN209569211U (en) | 2019-11-01 |
Family
ID=68332513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920101059.8U Active CN209569211U (en) | 2019-01-19 | 2019-01-19 | A kind of servo-hydraulic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209569211U (en) |
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2019
- 2019-01-19 CN CN201920101059.8U patent/CN209569211U/en active Active
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