CN205298098U - Press hydraulic system's power servo control device - Google Patents
Press hydraulic system's power servo control device Download PDFInfo
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- CN205298098U CN205298098U CN201620065740.8U CN201620065740U CN205298098U CN 205298098 U CN205298098 U CN 205298098U CN 201620065740 U CN201620065740 U CN 201620065740U CN 205298098 U CN205298098 U CN 205298098U
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- hydraulic
- branch road
- servo
- fuel feeding
- valve
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Abstract
The utility model discloses a press hydraulic system's power servo control device, including computer control module, AD sample module, DA control module and servo hydraulic control system, servo hydraulic control system includes steady voltage overflow return circuit, the servo hydraulic control return circuit of electromagnetism and oil feeding system, steady voltage overflow return circuit is including the electromagnetic relief valve, water chiller and time oil filter that connect gradually, the servo hydraulic control return circuit of electromagnetism is including the electromagnetism servovalve, hydraulic pressure lock, the pneumatic cylinder that connect gradually, oil feeding system includes oil tank and fuel feeding branch road, the fuel feeding branch road is including the first oil filter of inhaling, first stop valve, variable pump and the check valve that connect gradually, press hydraulic system's power servo control device to two effect single pole pneumatic cylinders adopt the servo hydraulic control of electromagnetism as execute component, the fuel feeding is provided with the displacement of accumulator, controlled pressure machine that can be quick, accurate on the road.
Description
Technical field
Basis is novel relates to a kind of hydraulic control device, in particular to the power Servocontrol device of a kind of pressing machine hydraulic efficiency system.
Background technology
The hydraulic industry of China starts from the fifties in 20th century, and Hydraulic Elements are applied to lathe and forging equipment at first. The sixties obtains bigger development, has penetrated into each industrial sector, is widely used in the industry such as automobile, lathe, engineering machinery, metallurgy, agricultural machine, boats and ships, aviation, oil and military project. Current hydraulic pressure technology just towards high pressure, at a high speed, high-power, high-level efficiency, low noise, etc. the directions such as energy consumption, long lifetime, Highgrade integration develop. Meanwhile, the application of new element, system CAD, Computer Simulation and the work such as optimization, microcomputer control, also achieve remarkable achievement. It thus is seen that developing rapidly along with science and technology, hydraulic pressure technology will obtain further development, and the application in mechanical means will be more extensive.
Hydraulic servocontrol is a kind of automatic control system set up in hydrostatic transmission and automatic control theory basis, and in current pressing machine, hydraulic servo control apparatus can not the displacement of accurate control pressure machine.
Summary of the invention
In order to solve the problem, the utility model provides the power Servocontrol device of a kind of pressing machine hydraulic efficiency system, using double-acting list bar hydro-cylinder as power element, adopts electromagnetic servo hydrostatic control scheme, and efficiency is higher, transmission is accurate.
The technical solution adopted in the utility model is: the power Servocontrol device of a kind of pressing machine hydraulic efficiency system, comprising computer control module, AD sampling module, DA control module and servo hydraulic control system, described servo hydraulic control system comprises voltage stabilizing skimmer circuit, electromagnetic servo hydraulic control circuit and oil supply system;
Described voltage stabilizing skimmer circuit comprises the electromagnetism surplus valve, watercooler and the return filter that connect successively;
Described electromagnetic servo hydraulic control circuit comprise connect successively electromagnetic servo valve, hydraulic lock, hydro-cylinder, described hydraulic lock comprises and the first hydraulic lock of connecing and the 2nd hydraulic lock, described first hydraulic lock is connected with on the left of hydro-cylinder, and the 2nd hydraulic lock is connected with on the right side of hydro-cylinder;
Described oil supply system comprises fuel tank 2 and fuel feeding branch road, and described fuel feeding branch road comprises the first oil absorption filter, the first stopping valve, variable volume pump and the check valve that connect successively, and described variable volume pump is connected with motor by shaft coupling.
Further, described fuel feeding branch road is provided with hydraulicefficiency pressure gauge and measuring cell.
Further, described fuel feeding branch road is also connected to energy storage device branch road, and described energy storage device branch road is serially connected with safety valve group and energy storage device.
Further, described fuel feeding branch road is also connected to manual pump redundant system.
Further, described computer module is connected with DA control module with AD sampling module respectively, and described AD sampling module is connected with displacement sensor, and described DA control module is connected with the electromagnetic servo valve in servo hydraulic control system.
The beneficial effects of the utility model are: the power Servocontrol device of pressing machine hydraulic efficiency system, using double-acting list bar hydro-cylinder as power element, adopt electromagnetic servo hydrostatic control; Can the displacement of direct control pressure machine quickly and accurately; Fuel feeding branch road is provided with energy storage device, it is possible to the pressure in stable liquid cylinder pressure, and the piston in hydro-cylinder is at the uniform velocity moved in process and backhaul process, good reliability, output rating is lasting, can effectively improve pressing machine working efficiency, and extend the work-ing life of hydro-pump.
Accompanying drawing explanation
Fig. 1 is system principle schematic of the present utility model;
Fig. 2 is the entire block diagram of each module of the utility model;
In figure: 1 liquidometer; 2, fuel tank; 4, the first oil absorption filter; 5, the first stopping valve; 6, variable volume pump; 7, shaft coupling; 8, motor; 9, hydraulicefficiency pressure gauge; 10, measuring cell; 11, check valve; 12, manual pump; 13, electromagnetism surplus valve; 14, watercooler; 15, return filter; 16, safety valve group; 17, energy storage device; 18, electromagnetic servo valve; 19, the 2nd hydraulic lock; 20, the first hydraulic lock; 21, hydro-cylinder; 23, the 2nd stopping valve; 24, the 2nd oil absorption filter.
Below in conjunction with the drawings and specific embodiments, system principle of the present utility model is further described in detail.
Embodiment
As shown in Figure 1: the power Servocontrol device of a kind of pressing machine hydraulic efficiency system, using double-acting list bar hydro-cylinder as power element, adopt electromagnetic servo hydrostatic control, the displacement of control pressure machine that can be accurate, quick, stable, the utility model comprises computer control module, AD sampling module, DA control module and servo hydraulic control system, and described servo hydraulic control system comprises voltage stabilizing skimmer circuit, electromagnetic servo hydraulic control circuit and oil supply system; Described voltage stabilizing skimmer circuit comprises the electromagnetism surplus valve 13, watercooler 14 and the return filter 15 that connect successively; Described electromagnetic servo hydraulic control circuit comprise connect successively electromagnetic servo valve 18, hydraulic lock, hydro-cylinder 21, described hydraulic lock comprises and the first hydraulic lock 20 of connecing and the 2nd hydraulic lock 19, described first hydraulic lock 20 is connected with on the left of hydro-cylinder 21, and the 2nd hydraulic lock 19 is connected with on the right side of hydro-cylinder 21; Described oil supply system comprises fuel tank 2 and fuel feeding branch road, fuel tank 2 is provided with liquidometer 1, it is used for reacting the height of liquid level in fuel tank, described fuel feeding branch road comprises the first oil absorption filter 4, first stopping valve 5, variable volume pump 6 and the check valve 11 that connect successively, and described variable volume pump 6 is connected with motor 8 by shaft coupling 7; Described computer module is connected with DA control module with AD sampling module respectively, and the displacement sensor that described AD sampling module moves with detecting pressure seat in the plane in hydraulic efficiency system is connected, and described DA control module is connected with the magnetic valve in servo hydraulic control system.
Further, described fuel feeding branch road is serially connected with hydraulicefficiency pressure gauge 9 and measuring cell 10, it is used for measuring the pressure of fluid, simultaneously, fuel feeding branch road is also connected to energy storage device branch road, described energy storage device branch road is serially connected with safety valve group 16 and energy storage device 17, and energy storage device branch road as auxiliarypower source, can also can be used for the pressurize of system, absorb vibration and impact on the one hand on the other hand.
The working process of the power Servocontrol device of the utility model a kind of pressing machine hydraulic efficiency system is: motor 8 obtains electric, variable volume pump 6 is driven to work by shaft coupling 7, hydraulic efficiency oil is sucked from fuel tank 2, hydraulic efficiency oil is through the first oil absorption filter 4, first stopping valve 5, check valve 11 enters voltage stabilizing skimmer circuit and electromagnetic servo hydraulic control circuit, during by voltage stabilizing skimmer circuit, variable volume pump 6 exports oil liquid pressure can exceed demand pressure, electromagnetism surplus valve 13 limits oil-in pressure, the pressure gone out just makes electromagnetism surplus valve 13 valve port open more, and then make the fluid after watercooler 14 is lowered the temperature more, fuel tank 2 is entered again through return filter 15, on the other hand, fluid is by electromagnetic servo valve 18, first hydraulic lock 20 enters double-acting list bar hydro-cylinder 21, while promoting bar to move, the variable signal that the displacement sensor being used for moving detecting pressure seat in the plane senses is passed to computer module by AD sampling module, the output terminal of computer module connects DA control module, computer module sends instructions to DA control module and changes, simultaneously under the effect of corresponding signal and amplifier in systems in which, when displacement arrives preset value, the spool of electromagnetic servo valve 18 produces displacement, valve position changes, then system is made to discharge fluid, the change in displacement of pressing machine is finally made to be tending towards zero and move back, can be accurately by this kind of closed loop feedback system, the misalignment of stable control pressure machine.
As further improvement of the utility model, when comprising foregoing, at fuel feeding branch road and be connected to manual pump redundant system, manual pump redundant system comprises the parts such as the 2nd oil absorption filter 24, the 2nd stopping valve 23, manual pump 12, in the event of a loss of power, manually pump 12 oil suction from fuel tank 2, fluid enters electromagnetic servo valve 18 after the 2nd oil absorption filter 24, the 2nd stopping valve 23, check valve and works.
Claims (5)
1. the power Servocontrol device of a pressing machine hydraulic efficiency system, it is characterized in that: comprise computer control module, AD sampling module, DA control module and servo hydraulic control system, described servo hydraulic control system comprises voltage stabilizing skimmer circuit, electromagnetic servo hydraulic control circuit and oil supply system;
Described voltage stabilizing skimmer circuit comprises the electromagnetism surplus valve (13), watercooler (14) and the return filter (15) that connect successively;
Described electromagnetic servo hydraulic control circuit comprise connect successively electromagnetic servo valve (18), hydraulic lock, hydro-cylinder (21), described hydraulic lock comprises and the first hydraulic lock (20) of connecing and the 2nd hydraulic lock (19), described first hydraulic lock (20) is connected with hydro-cylinder (21) left side, and the 2nd hydraulic lock (19) is connected with hydro-cylinder (21) right side;
Described oil supply system comprises fuel tank (2) and fuel feeding branch road, described fuel feeding branch road comprises the first oil absorption filter (4), the first stopping valve (5), variable volume pump (6) and the check valve (11) that connect successively, and described variable volume pump (6) is connected with motor (8) by shaft coupling (7).
2. the power Servocontrol device of a kind of pressing machine hydraulic efficiency system according to claim 1, it is characterised in that: described fuel feeding branch road is provided with hydraulicefficiency pressure gauge (9) and measuring cell (10).
3. the power Servocontrol device of a kind of pressing machine hydraulic efficiency system according to claim 1, it is characterized in that: described fuel feeding branch road is also connected to energy storage device branch road, and described energy storage device branch road is serially connected with safety valve group (16) and energy storage device (17).
4. the power Servocontrol device of a kind of pressing machine hydraulic efficiency system according to claim 1, it is characterised in that: described fuel feeding branch road is also connected to manual pump redundant system.
5. the power Servocontrol device of a kind of pressing machine hydraulic efficiency system according to claim 1, it is characterized in that: described computer module is connected with DA control module with AD sampling module respectively, described AD sampling module is connected with displacement sensor, and described DA control module is connected with the electromagnetic servo valve in servo hydraulic control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620065740.8U CN205298098U (en) | 2016-01-22 | 2016-01-22 | Press hydraulic system's power servo control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620065740.8U CN205298098U (en) | 2016-01-22 | 2016-01-22 | Press hydraulic system's power servo control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205298098U true CN205298098U (en) | 2016-06-08 |
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ID=56427161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620065740.8U Expired - Fee Related CN205298098U (en) | 2016-01-22 | 2016-01-22 | Press hydraulic system's power servo control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205298098U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762865A (en) * | 2017-02-20 | 2017-05-31 | 中国人民解放军海军航空工程学院青岛校区 | Extendible oil-receiving device testing stand |
| CN108730273A (en) * | 2018-05-30 | 2018-11-02 | 安徽工程大学 | A kind of hydraulic control device |
-
2016
- 2016-01-22 CN CN201620065740.8U patent/CN205298098U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762865A (en) * | 2017-02-20 | 2017-05-31 | 中国人民解放军海军航空工程学院青岛校区 | Extendible oil-receiving device testing stand |
| CN108730273A (en) * | 2018-05-30 | 2018-11-02 | 安徽工程大学 | A kind of hydraulic control device |
| CN108730273B (en) * | 2018-05-30 | 2020-08-07 | 安徽工程大学 | Hydraulic control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20170122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |