CN201202621Y - Bidirectional liquid charging apparatus controlled by change valve - Google Patents
Bidirectional liquid charging apparatus controlled by change valve Download PDFInfo
- Publication number
- CN201202621Y CN201202621Y CNU2008200209869U CN200820020986U CN201202621Y CN 201202621 Y CN201202621 Y CN 201202621Y CN U2008200209869 U CNU2008200209869 U CN U2008200209869U CN 200820020986 U CN200820020986 U CN 200820020986U CN 201202621 Y CN201202621 Y CN 201202621Y
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- way
- control
- programmable controller
- reversing valve
- hydraulic pump
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Abstract
The utility model provides a reversing valve control two-way liquid charging device which comprises a hydraulic cylinder, an oil tank, a pressure sensor, a two-way hydraulic pump, a switched reluctance motor, a motor controller, a programmable controller, a reversing valve relay and a control keyboard. The input terminal of the motor controller is respectively connected with the control keyboard and the programmable controller and the output terminal is connected with the switched reluctance motor which is in connection with the two-way hydraulic pump. The output terminal of the pressure sensor is connected with the programmable controller. The utility mode is characterized in that reversing valve control two-way liquid charging device, in addition, is provided with two two-way valves; the operation cavity and the stroke reversal cavity of the hydraulic cylinder are respectively connected with the two-way hydraulic pump and the two two-way valves through a pipe on which the pressure sensor is arranged; both two-way valves are connected with the oil tank; and the output terminal of the programmable controller corresponds with the two-way valves through the reversing valve relay. The reversing valve control two-way liquid charging device takes a reversing valve to control the liquid charging of the hydraulic cylinder and omits a liquid control one-way valve, and the programmable controller controls liquid charging according to the pressure of the liquid, thus realizing program control. Meanwhile, the reversing valve control two-way liquid charging device is good in work performance.
Description
Technical field
The utility model provides a kind of selector valve control two-way charging device, belongs to the hydraulic machinery field.
Background technique
The two-way charging device of selector valve control adopts Pilot operated check valve to control for a long time always, as the patent No. is " 200620144604 " disclosed " numerical control hydraulic system of switch reluctance motor pump ", its technological scheme is: comprise hydraulic system and reversible continuous speed regulation system, hydraulic system links to each other with reversible continuous speed regulation system.Though adopt above-mentioned technology can realize speed change, break-in and pressure, displacement numerical control, simplify the structure of hydraulic system greatly, the restriction loss that exists in the elimination system fully, owing to be to adopt Pilot operated check valve to control, easily stifled match hydraulic control mouth.
The model utility content
The purpose of this utility model provides a kind of two-way charging device of selector valve control that can overcome above-mentioned defective, the difficult stifled match of hydraulic control mouth, reliable working performance.Its technological scheme is:
The control system that comprises hydraulic system and switched reluctance machines, wherein hydraulic system comprises oil hydraulic cylinder, fuel tank, pressure transducer and bidirectional hydraulic pump, control system comprises electric machine controller, programmable controller, selector valve relay and supervisory keyboard, the input end of electric machine controller connects supervisory keyboard and programmable controller respectively, its signal output part connects switched reluctance machines, switched reluctance machines connects the bidirectional hydraulic pump, the output termination programmable controller of pressure transducer, it is characterized in that: set up two two position two-way valves, the active chamber of oil hydraulic cylinder connects bidirectional hydraulic pump and a two position two-way valve respectively through a pipeline that is provided with pressure transducer, the backhaul chamber of oil hydraulic cylinder connects bidirectional hydraulic pump and another two position two-way valve respectively through another pipeline that is provided with pressure transducer, two equal connected tanks of two position two-way valve, the output terminal of programmable controller connect the control end of two two position two-way valves through selector valve relay correspondence.
The two-way charging device of described selector valve control, supervisory keyboard adopts the touch screen supervisory keyboard.
Its working principle is: when pistons work, the active chamber of oil hydraulic cylinder advances hydraulic oil, the two position two-way valve conducting that programmable controller is communicated with the backhaul chamber through the control of selector valve relay, the hydraulic oil of fuel tank is successively through this two position two-way valve, bidirectional hydraulic pump feed liquor cylinder pressure; When backward stroke of the piston, hydraulic oil is advanced in the backhaul chamber of oil hydraulic cylinder, the two position two-way valve conducting that programmable controller is communicated with active chamber through the control of selector valve relay, the hydraulic oil part in the active chamber are through this two position two-way valve oil sump tank, and a part is through bidirectional hydraulic pump feed liquor cylinder pressure backhaul chamber.
The utility model compared with prior art has following advantage:
1, by selector valve control oil hydraulic cylinder hydromechanical system, saved Pilot operated check valve, simple and reasonable, reliable working performance.
2, control topping up by programmable controller according to fluid pressure, realized program control.
Description of drawings
Fig. 1 is the utility model embodiment 1 a structural representation.
Among the figure: 1, electric machine controller 2, switched reluctance machines 3, bidirectional hydraulic pump 4, fuel tank 5, supervisory keyboard 6, pipeline 7, piston 8, oil hydraulic cylinder 9, two position two-way valve 10, pressure transducer 11, selector valve relay 12, programmable controller
Embodiment
Below in conjunction with accompanying drawing the utility model is carried out brief description: in the embodiment shown in fig. 1, supervisory keyboard 5 adopts the touch screen supervisory keyboard to connect programmable controller 12 and electric machine controller 1, the output termination switched reluctance machines 2 of electric machine controller 1, switched reluctance machines 2 links bidirectional hydraulic pump 3, the active chamber of oil hydraulic cylinder 8 connects bidirectional hydraulic pump 3 and a two position two-way valve 9 respectively through a pipeline 6 that is provided with pressure transducer 10, the backhaul chamber of oil hydraulic cylinder 8 connects bidirectional hydraulic pump 3 and another two position two-way valve 9 respectively through another pipeline 6 that is provided with pressure transducer 10, two two position two-way valve 9 equal connected tanks 4, the input end of programmable controller 12 connects two pressure transducers 10 respectively, it exports termination electric machine controller 1, and connects the control end of two two position two-way valves 9 through selector valve relay 11 correspondences.
The utility model can be used for the hydraulic system of various mechanized equipments, (as Transport Machinery, metal forming machinery, metallurgical machinery, forming machine, oil hydraulic press, injection machine, die casting machine, milling train pressurization machinery etc.) can replace using the traditional electrohydraulic servo system of electrohydraulic control and the hydraulic system of AC Servo Motor Control on hydraulicdriven servounit, along with further developing of technology, system also can obtain big development at other field.
Claims (2)
1, the two-way charging device of a kind of selector valve control, the control system that comprises hydraulic system and switched reluctance machines (2), wherein hydraulic system comprises oil hydraulic cylinder (8), fuel tank (4), pressure transducer (10) and bidirectional hydraulic pump (3), control system comprises electric machine controller (1), programmable controller (12), selector valve relay (11) and supervisory keyboard (5), the input end of electric machine controller (1) connects supervisory keyboard (5) and programmable controller (12) respectively, its signal output part connects switched reluctance machines (2), switched reluctance machines (2) connects bidirectional hydraulic pump (3), the output termination programmable controller (12) of pressure transducer (10), it is characterized in that: set up two two position two-way valves (9), the active chamber of oil hydraulic cylinder (8) connects a bidirectional hydraulic pump (3) and a two position two-way valve (9) respectively through a pipeline (6) that is provided with pressure transducer (10), the backhaul chamber of oil hydraulic cylinder (8) connects bidirectional hydraulic pump (3) and another two position two-way valve (9) respectively through another pipeline (6) that is provided with pressure transducer (10), two two position two-way valves (9) are connected tank (4) all, and the output terminal of programmable controller (12) connects the control end of two two position two-way valves (9) through selector valve relay (11) correspondence.
2, the two-way charging device of selector valve control as claimed in claim 1 is characterized in that: supervisory keyboard (5) adopts the touch screen supervisory keyboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200209869U CN201202621Y (en) | 2008-04-18 | 2008-04-18 | Bidirectional liquid charging apparatus controlled by change valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200209869U CN201202621Y (en) | 2008-04-18 | 2008-04-18 | Bidirectional liquid charging apparatus controlled by change valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201202621Y true CN201202621Y (en) | 2009-03-04 |
Family
ID=40424936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200209869U Expired - Fee Related CN201202621Y (en) | 2008-04-18 | 2008-04-18 | Bidirectional liquid charging apparatus controlled by change valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201202621Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865172A (en) * | 2010-07-03 | 2010-10-20 | 太原理工大学 | Active piloted active servo proportional valve |
| CN101929482B (en) * | 2010-08-25 | 2013-04-03 | 太原理工大学 | Proportional flow valve controlled by pilot flow closed loop |
-
2008
- 2008-04-18 CN CNU2008200209869U patent/CN201202621Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865172A (en) * | 2010-07-03 | 2010-10-20 | 太原理工大学 | Active piloted active servo proportional valve |
| CN101865172B (en) * | 2010-07-03 | 2012-07-04 | 太原理工大学 | Active piloted active servo proportional valve |
| CN101929482B (en) * | 2010-08-25 | 2013-04-03 | 太原理工大学 | Proportional flow valve controlled by pilot flow closed loop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20100418 |