CN201246357Y - Hydraulic control system of bender - Google Patents

Hydraulic control system of bender Download PDF

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Publication number
CN201246357Y
CN201246357Y CNU2008200583857U CN200820058385U CN201246357Y CN 201246357 Y CN201246357 Y CN 201246357Y CN U2008200583857 U CNU2008200583857 U CN U2008200583857U CN 200820058385 U CN200820058385 U CN 200820058385U CN 201246357 Y CN201246357 Y CN 201246357Y
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CN
China
Prior art keywords
valve
solenoid directional
way solenoid
directional control
mouth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2008200583857U
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Chinese (zh)
Inventor
夏新国
胡俊伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XINLI MACHINE PLANT SHANGHAI
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XINLI MACHINE PLANT SHANGHAI
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Filing date
Publication date
Application filed by XINLI MACHINE PLANT SHANGHAI filed Critical XINLI MACHINE PLANT SHANGHAI
Priority to CNU2008200583857U priority Critical patent/CN201246357Y/en
Application granted granted Critical
Publication of CN201246357Y publication Critical patent/CN201246357Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a hydraulic control system of a bending machine, which comprises a motor, a pump, and a three-position four-way solenoid directional valve, wherein, the port B of the three-position four-way solenoid directional valve is divided into three paths; the first path is connected with a throttle valve core component; the second path is connected with a two-position two-way solenoid directional valve; the throttle valve core component is connected to an oil cylinder lower cavity through a solenoid one-way valve to form a speed-changing loop after being connected in parallel with the two-position two-way solenoid directional valve; and the third path is connected with a control port of a prefill valve to form a speed-regulating loop. Compared with the prior art, the hydraulic control system has the effects that the pressure wave impact during high pressure commutation and the mutual interference of high pressure wave and low pressure wave are avoided; the oil circuit structure is simplified; the communication oil circuits of a hydraulic manifold block are reduced; the internal loss and the system noise are reduced; the structure is compact; the size is small; the manufacturing cost is low; and the reliability is high.

Description

The bender hydraulic control system
Technical field
The utility model relates to the bender hydraulic control system, is suitable for 63 tons to 250 tons a hydraulic control of Synchronous Bending machine of turning round.
Background technique
Domestic existing bender hydraulic control system adopts domestic board-like element valve or external screw-in cartridge valve substantially, nearly ten of primary elements, and the hydraulic manifold block volume is big, and control loop is complicated, and installing space needs bigger, the fabricating cost height.
Summary of the invention
The technical problems to be solved in the utility model provides the bender hydraulic control system, and it can simplify the hydraulic control circuit of bender, reduces the quantity of hydraulic element, prevents the phase mutual interference of height oil hydraulic circuit, reduces hydraulic noise and fabricating cost.
For solving the problems of the technologies described above, bender hydraulic control system of the present utility model comprises motor, pump, 3-position 4-way solenoid directional control valve, the B mouth of described 3-position 4-way solenoid directional control valve is divided into three the tunnel, one the tunnel links to each other with the throttling valve core assembly, the second the tunnel links to each other with the bi-bit bi-pass solenoid directional control valve, the throttling valve core assembly joins by electromagnetism one-way valve and oil cylinder cavity of resorption with after the bi-bit bi-pass solenoid directional control valve is in parallel, constitutes the speed change loop; Third Road connects the control mouth of liquid-filling valve, constitutes control loop.
The P mouth one tunnel of described 3-position 4-way solenoid directional control valve connects the oil pump oil outlet, and another road constitutes pressure-control circuit by the relief valve connected tank.
The T mouth of described 3-position 4-way solenoid directional control valve joins by throttling valve core assembly and fuel tank, constitutes flow control circuit.
The A mouth of described 3-position 4-way solenoid directional control valve connects the oil cylinder epicoele by the one-way throttle mangetic core assembly.
Bender hydraulic control system of the present utility model is to the speed change loop; pressure-control circuit; control loop and flow control circuit improve; plug-in type adjustable mangetic core assembly is in parallel with the bi-bit bi-pass solenoid directional control valve has realized that soon conversion at a slow speed is with adjustable at a slow speed; the plug-in type adjustable mangetic core assembly of string between the T mouth of fuel tank and 3-position 4-way solenoid directional control valve realized Fast Adjustable; pressure surge when the plug-in type one-way throttle mangetic core assembly of string between the A mouth of oil cylinder epicoele and 3-position 4-way solenoid directional control valve isolated the high pressure commutation; reduced System noise; directly control liquid-filling valve from the control oil channel that the B mouth of 3-position 4-way solenoid directional control valve is drawn; leak free bi-bit bi-pass electromagnetism one-way valve replaces traditional hydraulic operation one-way valve; control loop or additional control electromagnetic valve related in the conventional hydraulic have been cancelled with high pressure; avoided the phase mutual interference of high low pressure Reeb; improved the reliability of hydraulic system; and reduced the communication oil circuit of hydraulic manifold block; be directly installed near the relief valve of bender console and replaced relief valve in the conventional hydraulic; the pressure-control circuit that solenoid directional control valve and remote pressure regulating valve are formed; simplified oil channel structures; reduced internal loss; reached energy-saving effect; one-way throttle mangetic core assembly and throttling valve core assembly are plug in construction; cost only is 1/10 of a traditional element valve, and only the bender hydraulic control system of 7 primary element valve compositions has the bender slide block soon down; the worker advances; quick return; adjustable-speed and overload protection function.
Description of drawings
Fig. 1 is the control principle figure of the utility model bender hydraulic control system.
Embodiment
With reference to Fig. 1, bender hydraulic control system described in the utility model comprises motor, pump, fuel tank, relief valve, solenoid directional control valve, electromagnetism one-way valve, liquid-filling valve, throttling valve core assembly.Motor 12 drives oil pump 11 rotations, the fluid in the fuel tank is sent into the P mouth and the relief valve 8 of 3-position 4-way solenoid directional control valve 1 by oil purifier 13, as YV1, when YV2 does not move, fluid flows back to fuel tank 15 through the T of solenoid directional control valve 1 mouth and throttling valve core assembly 2, and this moment, system was in unloading condition.When YV1 or YV2 get electronic work, the pressure oil that oil pump is discharged enters oil cylinder 14 by the A mouth or the B mouth of 3-position 4-way solenoid directional control valve 1, makes slide block do motion downward or upward.The working pressure of hydraulic system is set up by relief valve 8 and pressure gauge 10 indications.
Work as YV1, when YV3 and YV4 get electronic the work, YV2 must not, the pressure oil that oil pump is discharged enters the epicoele of oil cylinder 14 through the A of 3-position 4-way solenoid directional control valve 1 mouth and one-way throttle mangetic core assembly 3, slide block moves downward under action of gravity fast, liquid-filling valve 7 is left by suction because of oil cylinder 14 epicoeles produce negative pressure simultaneously, fluid in the fuel tank 15 enters the epicoele of oil cylinder 14 rapidly through liquid-filling valve 7, the fluid of oil cylinder 14 cavity of resorptions is by bi-bit bi-pass electromagnetism one-way valve 4, bi-bit bi-pass solenoid directional control valve 6, the B mouth and the throttling valve core assembly 2 of 3-position 4-way solenoid directional control valve 1 flow back to fuel tank rapidly, this moment, slide block was downward fast, and adjusting throttling valve core assembly 2 can change slide block and descend speed soon.
When YV1 and YV3 get electronic the work, YV2, YV4 must not, the fluid of oil cylinder 14 cavity of resorptions flows back to fuel tank 15 at a slow speed by the B mouth and the throttling valve core assembly 2 of bi-bit bi-pass electromagnetism one-way valve 4, throttling valve core assembly 9,3-position 4-way solenoid directional control valve 1, this moment oil cylinder 14 drive slide blocks at a slow speed the worker advance, adjust throttling valve core assembly 9 and can change the slide block work speed, the worker advances the moment that pressurize finishes, and the high pressure oil of oil cylinder 14 epicoeles is by the throttle orifice of throttling valve core assembly 9, the meta function buffering off-load of 3-position 4-way solenoid directional control valve 1.
When YV2, YV3, YV4 get electronic the work; YV1 must not; the pressure oil that oil pump 11 is discharged enters the cavity of resorption of oil cylinder 14 through the B of 3-position 4-way solenoid directional control valve 1 mouth, bi-bit bi-pass solenoid directional control valve 6, bi-bit bi-pass electromagnetism one-way valve 4; the piston that promotes oil cylinder 14 rapid movement that makes progress; open liquid-filling valve 7 simultaneously from the pressure oil that the B mouth of 3-position 4-way solenoid directional control valve 1 is drawn; the fluid of oil cylinder 14 epicoeles flows back to fuel tank rapidly by liquid-filling valve 7; this moment the slide block quick return; backhaul pressure is set up by relief valve 5; in addition, relief valve 5 has been realized overload protection function.
Table 1 is the sequence of movement table of each electromagnet.
Table 1

Claims (4)

1. bender hydraulic control system, comprise motor, pump, 3-position 4-way solenoid directional control valve, it is characterized in that: the B mouth of 3-position 4-way solenoid directional control valve is divided into three the tunnel, the first via links to each other with the throttling valve core assembly, and the second the tunnel links to each other with the bi-bit bi-pass solenoid directional control valve, and the throttling valve core assembly is with after the bi-bit bi-pass solenoid directional control valve is in parallel, join by electromagnetism one-way valve and oil cylinder cavity of resorption, constitute the speed change loop, Third Road connects the control mouth of liquid-filling valve, constitutes control loop.
2. bender hydraulic control system according to claim 1 is characterized in that: the P mouth one tunnel of 3-position 4-way solenoid directional control valve connects the oil pump oil outlet, and another road constitutes simple pressure-control circuit by the relief valve connected tank.
3. bender hydraulic control system according to claim 2 is characterized in that: the T mouth of described 3-position 4-way solenoid directional control valve joins by throttling valve core assembly and fuel tank, constitutes flow control circuit.
4. bender hydraulic control system according to claim 3 is characterized in that: the A mouth of described 3-position 4-way solenoid directional control valve connects the oil cylinder epicoele by the one-way throttle mangetic core assembly.
CNU2008200583857U 2008-05-15 2008-05-15 Hydraulic control system of bender Expired - Fee Related CN201246357Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200583857U CN201246357Y (en) 2008-05-15 2008-05-15 Hydraulic control system of bender

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200583857U CN201246357Y (en) 2008-05-15 2008-05-15 Hydraulic control system of bender

Publications (1)

Publication Number Publication Date
CN201246357Y true CN201246357Y (en) 2009-05-27

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CNU2008200583857U Expired - Fee Related CN201246357Y (en) 2008-05-15 2008-05-15 Hydraulic control system of bender

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CN (1) CN201246357Y (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101994727A (en) * 2010-12-29 2011-03-30 郑州宇通重工有限公司 Balance valve having two-stage pressure buffering protection function
CN102305223A (en) * 2011-05-16 2012-01-04 江门市蒙德电气有限公司 Hydraulic control device and control method thereof
CN102518613A (en) * 2011-12-03 2012-06-27 南京埃尔法电液技术有限公司 Bender hydraulic system
CN102562703A (en) * 2011-11-18 2012-07-11 北京曙光航空电气有限责任公司 Input-pressure-variable oil circuit structure of oil cylinder
CN102691681A (en) * 2012-06-26 2012-09-26 重庆键英液压机电有限公司 Novel three-point type bending machine hydraulic system with quick energy conservation
CN104011399A (en) * 2012-01-25 2014-08-27 萱场工业株式会社 Circuit pressure control apparatus, hydraulic pressure control circuit using this circuit pressure control apparatus, and hydraulic pressure control circuit of construction equipment
CN104088863A (en) * 2014-06-16 2014-10-08 阜新华厦液压气动设备制造厂 Single-pump double-speed hydraulic system
CN104321575A (en) * 2012-06-04 2015-01-28 永都产业株式会社 Fluid control valve assembly
CN104482277A (en) * 2014-12-31 2015-04-01 安徽江淮汽车股份有限公司 Electric control duplex solenoid valve
CN104948538A (en) * 2015-06-03 2015-09-30 福建工程学院 Plate bending machine servo hydraulic system and construction method thereof
CN105020193A (en) * 2014-12-28 2015-11-04 高铁检测仪器(东莞)有限公司 Oil pressure control system
CN109611397A (en) * 2019-01-25 2019-04-12 上海速锐信息技术有限公司 A kind of hydraulic synchronous system and the carrier comprising the synchronization hydraulic system
CN110998151A (en) * 2017-06-21 2020-04-10 邦奇动力有限责任公司 Hydraulic system

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101994727A (en) * 2010-12-29 2011-03-30 郑州宇通重工有限公司 Balance valve having two-stage pressure buffering protection function
CN101994727B (en) * 2010-12-29 2012-11-28 郑州宇通重工有限公司 Balance valve having two-stage pressure buffering protection function
CN102305223A (en) * 2011-05-16 2012-01-04 江门市蒙德电气有限公司 Hydraulic control device and control method thereof
CN102562703A (en) * 2011-11-18 2012-07-11 北京曙光航空电气有限责任公司 Input-pressure-variable oil circuit structure of oil cylinder
CN102518613A (en) * 2011-12-03 2012-06-27 南京埃尔法电液技术有限公司 Bender hydraulic system
CN104011399A (en) * 2012-01-25 2014-08-27 萱场工业株式会社 Circuit pressure control apparatus, hydraulic pressure control circuit using this circuit pressure control apparatus, and hydraulic pressure control circuit of construction equipment
CN104321575B (en) * 2012-06-04 2016-04-27 永都产业株式会社 Fluid control valve assembly
CN104321575A (en) * 2012-06-04 2015-01-28 永都产业株式会社 Fluid control valve assembly
CN102691681B (en) * 2012-06-26 2015-03-25 重庆键英液压机电有限公司 Three-point type bending machine hydraulic system with quick energy conservation
CN102691681A (en) * 2012-06-26 2012-09-26 重庆键英液压机电有限公司 Novel three-point type bending machine hydraulic system with quick energy conservation
CN104088863A (en) * 2014-06-16 2014-10-08 阜新华厦液压气动设备制造厂 Single-pump double-speed hydraulic system
CN104088863B (en) * 2014-06-16 2017-01-04 阜新澳科液压气动设备制造厂 Single pump dual-speed hydraulic system
CN105020193A (en) * 2014-12-28 2015-11-04 高铁检测仪器(东莞)有限公司 Oil pressure control system
CN104482277A (en) * 2014-12-31 2015-04-01 安徽江淮汽车股份有限公司 Electric control duplex solenoid valve
CN104948538A (en) * 2015-06-03 2015-09-30 福建工程学院 Plate bending machine servo hydraulic system and construction method thereof
CN110998151A (en) * 2017-06-21 2020-04-10 邦奇动力有限责任公司 Hydraulic system
CN109611397A (en) * 2019-01-25 2019-04-12 上海速锐信息技术有限公司 A kind of hydraulic synchronous system and the carrier comprising the synchronization hydraulic system

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090527

Termination date: 20160515