CN1512078A - Hydraulic system of bending machine - Google Patents
Hydraulic system of bending machine Download PDFInfo
- Publication number
- CN1512078A CN1512078A CNA021604959A CN02160495A CN1512078A CN 1512078 A CN1512078 A CN 1512078A CN A021604959 A CNA021604959 A CN A021604959A CN 02160495 A CN02160495 A CN 02160495A CN 1512078 A CN1512078 A CN 1512078A
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- valve
- directional control
- solenoid directional
- control valve
- hydraulic system
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Abstract
The hydraulic system for bending machine includes motor, pump and valves. The motor is connected to the axial plunger pump; the plunger pump is connected to an oil tank via a netted oil filter, to an electromagnetic overflow valve and a remote pressure regulating valve and to the first electromagnetic change-over valve and a throttle valve; the first electromagnetic change-over valve is connected to the second electromagnetic change-over valve and a valve core assembly; the second electromagnetic change-over valve is connected to a pressure-maintaining liquid controlled non-return valve and a relief valve as well as two oil cylinders; the oil cylinders are connected to two prefill valves; and the prefill valves connected to the third electromagnetic change-over valve to control oil path forms a loop together with the other two electromagnetic change-over valves. The hydraulic system has high efficiency, saving in energy and pressure-maintaining and overload protection functions.
Description
Technical field
The present invention relates to bender, the hydraulic system of particularly a kind of 100 tons～160 tons of benders.
Background technique
The hydraulic system of existing various benders, with regard to using effect, proper, the solenoid directional control valve of just controlling oil cylinder is a three-position valve, except self cost is higher, also makes the electric control system of main frame become comparatively complicated, host service function is also comparatively loaded down with trivial details, has also increased the main frame cost.
Summary of the invention
Task of the present invention provides a kind of improved bender hydraulic system, comparatively complicated, comparatively loaded down with trivial details, the main frame cost problem of higher of host service function of the main frame electric control system that it has solved existing bender.
Technological scheme of the present invention is as follows:
A kind of bender hydraulic system, it comprises motor, pump, one-way valve, solenoid directional control valve and other valve, described motor is connected with axial piston pump, axial piston pump is connected with fuel tank by screen filter, axial piston pump one road is connected to electromagnetic relief valve and remote pressure regulating valve, another road of axial piston pump is connected to first solenoid directional control valve and throttle valve, first solenoid directional control valve is connected with mangetic core assembly with second solenoid directional control valve, second solenoid directional control valve is connected with safety valve with the Pilot operated check valve that is used for pressurize and is connected to two oil cylinders, two oil cylinders connect two liquid-filling valves respectively, two liquid-filling valves are connected the 3rd solenoid directional control valve of control oil channel, and form the loop with first solenoid directional control valve and second solenoid directional control valve.
Bender hydraulic system of the present invention, except that the function that all possesses existing bender hydraulic system, system oil-way is integrated again, change the solenoid directional control valve of control oil cylinder into two-position valve by three-position valve, reduced cost thus, simplify the electric control system of main frame simultaneously, reduced the main frame cost, made host service function very easy.
Bender hydraulic system of the present invention can realize that the bender slide block descends fast, the worker advances slowly down, quick return, and can be to descending soon, regulating down slowly, simultaneously soon down, snap back fluid passes through by liquid-filling valve, therefore reduced the flow of pump, reduce power of motor, had efficient, energy-conservation characteristics.System of the present invention also has the function of pressurize, overload protection.
Description of drawings
Fig. 1 is the hydraulic system principle figure of a kind of 100 tons～160 tons of benders of the present invention.
Fig. 2 is the action norm table of bender slide block.
Embodiment
Referring to Fig. 1 and Fig. 2, a kind of bender hydraulic system of the present invention comprises motor, pump, one-way valve, solenoid directional control valve and other valve.Motor 4 is connected with axial piston pump 3, and axial piston pump 3 is connected with fuel tank 1 by screen filter 2.
It is Pilot operated check valves that two oil cylinders 14 connect 15, two liquid-filling valves 15 of two liquid-filling valves respectively, and a large amount of fluid of decline and quick return can pass through from liquid-filling valve 15 fast, and its control oil channel is by the 3rd solenoid directional control valve 17 controls that electromagnet YV2 is housed.Two liquid-filling valves 15 and first solenoid directional control valve 10 and second solenoid directional control valve 11 form loops.The code name of the 3rd solenoid directional control valve 17 for example is 24EI1-H6B-T.
The working principle of bender hydraulic system of the present invention is as follows:
1. motor 4 startings, electromagnet YV1, YV2, YV3, YV5 must not be electric, and system is in unloading condition, the oil cylinder transfixion.
2. electromagnet YV1, YV3 get electricly, and YV2, YV5 must not electricity, and oil cylinder drives slide block and descends fast.
3. electromagnet YV1, YV2, YV3, YV5 get electricly, and oil cylinder drives slide block and descends at a slow speed, is the worker and advances.
4. electromagnet YV1, YV5 get electricly, and YV2, YV3 must not electricity, and oil cylinder drives the slide block quick return.
Claims (4)
1. bender hydraulic system, it comprises motor, pump, one-way valve, solenoid directional control valve and other valve, it is characterized in that, described motor is connected with axial piston pump, axial piston pump is connected with fuel tank by screen filter, axial piston pump one road is connected to electromagnetic relief valve and remote pressure regulating valve, another road of axial piston pump is connected to first solenoid directional control valve and throttle valve, first solenoid directional control valve is connected with mangetic core assembly with second solenoid directional control valve, second solenoid directional control valve is connected with safety valve with the Pilot operated check valve that is used for pressurize and is connected to two oil cylinders, two oil cylinders connect two liquid-filling valves respectively, two liquid-filling valves are connected the 3rd solenoid directional control valve of control oil channel, and form the loop with first solenoid directional control valve and second solenoid directional control valve.
2. bender hydraulic system according to claim 1 is characterized in that described axial piston pump connects a pressure gauge, and this pressure gauge is also connected with electromagnetic relief valve, remote pressure regulating valve and solenoid directional control valve.
3. bender hydraulic system according to claim 1 is characterized in that described liquid-filling valve is a Pilot operated check valve.
4. bender hydraulic system according to claim 1 is characterized in that described safety valve is a relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021604959A CN1512078A (en) | 2002-12-27 | 2002-12-27 | Hydraulic system of bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021604959A CN1512078A (en) | 2002-12-27 | 2002-12-27 | Hydraulic system of bending machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1512078A true CN1512078A (en) | 2004-07-14 |
Family
ID=34237887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021604959A Pending CN1512078A (en) | 2002-12-27 | 2002-12-27 | Hydraulic system of bending machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1512078A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846596A (en) * | 2010-06-11 | 2010-09-29 | 山东鲁能智能技术有限公司 | Ash sampling device for tanker vehicle of weight house |
| CN102297339A (en) * | 2011-07-29 | 2011-12-28 | 奇瑞汽车股份有限公司 | Control loop capable of changing filling pressure and control method thereof |
| CN101463849B (en) * | 2009-01-12 | 2012-05-16 | 天水锻压机床有限公司 | Hydraulic electrohydraulic ratio control system and method for prebending machine |
| CN103008416A (en) * | 2012-12-21 | 2013-04-03 | 南通金晟元机械制造有限公司 | Hydraulic system of arc plate rolling machine |
| CN106246642A (en) * | 2016-09-21 | 2016-12-21 | 长春工业大学 | A kind of oil circuit control to pilot operated valve device implements the locking loop individually controlled |
| CN106734405A (en) * | 2017-02-22 | 2017-05-31 | 池述锦 | Full-automatic electromagnetism bender |
| CN106734404A (en) * | 2017-02-22 | 2017-05-31 | 池述锦 | Numerical-control full-automatic electromagnetism bender |
| CN107120324A (en) * | 2017-04-24 | 2017-09-01 | 登派液压技术（上海）有限公司 | Gear pump control hydraulic control system of bender |
| CN108612688A (en) * | 2018-05-30 | 2018-10-02 | 保茜雯 | A kind of hydraulic control system of bender |
-
2002
- 2002-12-27 CN CNA021604959A patent/CN1512078A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463849B (en) * | 2009-01-12 | 2012-05-16 | 天水锻压机床有限公司 | Hydraulic electrohydraulic ratio control system and method for prebending machine |
| CN101846596A (en) * | 2010-06-11 | 2010-09-29 | 山东鲁能智能技术有限公司 | Ash sampling device for tanker vehicle of weight house |
| CN101846596B (en) * | 2010-06-11 | 2011-11-16 | 山东鲁能智能技术有限公司 | Ash sampling device for tanker vehicle of weight house |
| CN102297339A (en) * | 2011-07-29 | 2011-12-28 | 奇瑞汽车股份有限公司 | Control loop capable of changing filling pressure and control method thereof |
| CN102297339B (en) * | 2011-07-29 | 2013-11-20 | 奇瑞汽车股份有限公司 | Control loop capable of changing filling pressure and control method thereof |
| CN103008416A (en) * | 2012-12-21 | 2013-04-03 | 南通金晟元机械制造有限公司 | Hydraulic system of arc plate rolling machine |
| CN106246642A (en) * | 2016-09-21 | 2016-12-21 | 长春工业大学 | A kind of oil circuit control to pilot operated valve device implements the locking loop individually controlled |
| CN106734405A (en) * | 2017-02-22 | 2017-05-31 | 池述锦 | Full-automatic electromagnetism bender |
| CN106734404A (en) * | 2017-02-22 | 2017-05-31 | 池述锦 | Numerical-control full-automatic electromagnetism bender |
| CN107120324A (en) * | 2017-04-24 | 2017-09-01 | 登派液压技术（上海）有限公司 | Gear pump control hydraulic control system of bender |
| CN108612688A (en) * | 2018-05-30 | 2018-10-02 | 保茜雯 | A kind of hydraulic control system of bender |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |