CN103807239B - A kind of shear plate synchronous control hydraulic system based on Dual-output shaft motor - Google Patents
A kind of shear plate synchronous control hydraulic system based on Dual-output shaft motor Download PDFInfo
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- CN103807239B CN103807239B CN201410088506.2A CN201410088506A CN103807239B CN 103807239 B CN103807239 B CN 103807239B CN 201410088506 A CN201410088506 A CN 201410088506A CN 103807239 B CN103807239 B CN 103807239B
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Abstract
Based on a shear plate synchronous control hydraulic system for Dual-output shaft motor, relate to a kind of guillotine shear synchronous control hydraulic system, comprise two shear cylinders, two backgauge cylinders, three binder cylinders and shear cylinder synchronous control systems; Dual-output shaft motor, two the first one-way valves that shear cylinder synchronous control system comprises fuel tank, two identical oil hydraulic pumps and drives two oil hydraulic pumps to rotate; The oil outlet of each first one-way valve is connected to the first oil circuit, the second oil circuit and the 3rd oil circuit, and the first oil circuit comprises pilot operated compound relief valve and two-position two-way solenoid valve; Second oil circuit comprises sequence valve and two-position four-way solenoid valve; 3rd oil circuit comprises reduction valve, the second one-way valve and the first accumulator; Dual-output shaft motor drives two identical oil hydraulic pumps respectively to two identical shear cylinder fuel feeding, can ensure the synchronization accuracy of two shear cylinders preferably; Two shear cylinders are connected to the first accumulator to realize pressurize.
Description
Technical field
The present invention relates to a kind of guillotine shear synchronous control hydraulic system, be specially a kind of guillotine shear synchronous control hydraulic system based on Dual-output shaft motor, be specially adapted to large-scale guillotine shear twin-tub high-precise synchronization hydraulic control system.
Background technique
At present, guillotine shear is very universal at home and abroad, and the size shearing plate is also increasing, and major part all adopts hydraulic transmission.Large-scale guillotine shear adopts twin-tub systems cleave plate mostly, and therefore the synchronous control accuracy of twin-tub system seems and is even more important, and this is the important measurement index concerning product performance quality.Now most products commercially, twin-tub system synchronization precision is all lower, shears the second-rate of plate.
Patent 200620158152.5 and 201120154346.9 discloses a kind of lock formula hydraulic system of cutting machine, all have employed series cylinder to ensure to shear the synchronous of plate, but owing to lacking recharging oil device, synchronization accuracy is not high, be not well positioned to meet the synchronization control requirement of large-scale guillotine shear.Under the prerequisite meeting system basic demand, the synchronous control accuracy of twin-tub system should be improved as far as possible, improve the quality shearing plate.
Summary of the invention
The object of the invention is for the not high present situation of current large-scale guillotine shear twin-tub system synchronization precision, a kind of guillotine shear synchronous control hydraulic system based on Dual-output shaft motor is provided, this hydraulic system can ensure the synchronization accuracy of guillotine shear twin-tub system preferably, and it is more steady to shear plate, and shearing quality is better.
The technological scheme realizing above-mentioned purpose is: a kind of shear plate synchronous control hydraulic system based on Dual-output shaft motor, comprises two identical shear cylinders, two identical backgauge cylinders, three identical binder cylinders and shear cylinder synchronous control system, the Dual-output shaft motor that described shear cylinder synchronous control system comprises fuel tank, two identical oil hydraulic pumps and drives two oil hydraulic pumps to rotate, the filler opening of two oil hydraulic pumps connects fuel tank, the oil outlet of two oil hydraulic pumps is connected to the first one-way valve, the filler opening of each first one-way valve connects with the oil outlet of corresponding oil hydraulic pump respectively, and the oil outlet of each first one-way valve is connected to the first pressure gauge, the oil outlet of each first one-way valve is connected to the first oil circuit, the second oil circuit and the 3rd oil circuit, first oil circuit comprises pilot operated compound relief valve and two-position two-way solenoid valve, the filler opening of pilot operated compound relief valve connects the oil outlet of the first one-way valve, the oil outlet of pilot operated compound relief valve connects fuel tank, the control hydraulic fluid port of pilot operated compound relief valve connects the filler opening of two-position two-way solenoid valve, and the oil outlet of two-position two-way solenoid valve connects fuel tank, second oil circuit comprises sequence valve and two-position four-way solenoid valve, the filler opening of sequence valve connects the oil outlet of the first one-way valve, the oil outlet of sequence valve connects the pressure oil port P of two-position four-way solenoid valve, the oil return inlet T of two-position four-way solenoid valve connects fuel tank, the actuator port of two-position four-way solenoid valve connects a shear cylinder respectively, described shear cylinder is single-rod piston cylinder, the actuator port A of two-position four-way solenoid valve connects the rodless cavity of shear cylinder, and the actuator port B of two-position four-way solenoid valve connects the rod chamber of shear cylinder, 3rd oil circuit comprises reduction valve, second one-way valve and the first accumulator, the filler opening of reduction valve is connected with the oil outlet of the first one-way valve, the oil outlet of reduction valve connects the filler opening of the second one-way valve, described first accumulator is connected to the oil outlet of the second one-way valve, the outside control mouth of the sequence valve in described second oil circuit is connected between the first accumulator and the second one-way valve, article two, be connected with three binder cylinders and two backgauge cylinders respectively after the oil outlet parallel connection of the second one-way valve in the 3rd oil circuit, described binder cylinder is single-acting plunger type hydraulic cylinder, described backgauge cylinder be hydraulic cylinder with double piston rods, the diameter of the piston rod of backgauge cylinder side cavity is greater than the diameter of opposite side cavity piston rod, article described two, be connected with described backgauge cylinder small bore piston bar side cavity after the oil outlet parallel connection of the second one-way valve in the 3rd oil circuit, the second pressure gauge and the first relief valve is connected with between the first accumulator in described three binder cylinders and the 3rd oil circuit, the filler opening of the first relief valve connects the first accumulator and the second pressure gauge respectively, the oil outlet of the first relief valve connects fuel tank, be connected with the 3rd accumulator, the 3rd pressure gauge and the second relief valve after parallel connection between the cavity of the enlarged bore piston bar side of described two backgauge cylinders, the filler opening of described second relief valve connects the cavity of the enlarged bore piston bar side of the 3rd pressure gauge, the 3rd accumulator and two backgauge cylinders respectively.
Optimally, be connected to series flow control valve between the oil return inlet T of described two two-position four-way solenoid valves and fuel tank, the filler opening of series flow control valve connects the oil return inlet T of two-position four-way solenoid valve, and the oil outlet of series flow control valve connects fuel tank, make to shear plate more steady, shearing quality is better.
The invention has the beneficial effects as follows:
(1) Dual-output shaft motor drives two identical oil hydraulic pumps respectively to two identical shear cylinder fuel feeding, can ensure the synchronization accuracy of two shear cylinders preferably.
(2) two shear cylinders of the present invention are connected to the first accumulator to realize pressurize, reduce the energy ezpenditure of system.
Accompanying drawing explanation
Fig. 1 is fundamental diagram of the present invention.
Embodiment
As shown in Figure 1, the present invention includes the identical binder cylinder 3 of 2, three identical, backgauge cylinder of two identical shear cylinders 1, two and shear cylinder synchronous control system 4.
The Dual-output shaft motor 7 that shear cylinder synchronous control system 4 comprises fuel tank 5, two identical oil hydraulic pumps 6 and drives two oil hydraulic pumps 6 to rotate, the filler opening of two oil hydraulic pumps 6 connects fuel tank 5, the oil outlet of two oil hydraulic pumps 6 is connected to the first one-way valve 8, the filler opening of each first one-way valve 8 connects with the oil outlet of corresponding oil hydraulic pump 6 respectively, and the oil outlet of each first one-way valve 8 is connected to the first pressure gauge 9.
The oil outlet of each first one-way valve 8 is connected to the first oil circuit 10, second oil circuit 11 and the 3rd oil circuit 12, first oil circuit 11 comprises pilot operated compound relief valve 13 and two-position two-way solenoid valve 14, the filler opening of pilot operated compound relief valve 13 connects the oil outlet of the first one-way valve 8, the oil outlet of pilot operated compound relief valve 13 connects fuel tank 5, the control hydraulic fluid port of pilot operated compound relief valve 13 connects the filler opening of two-position two-way solenoid valve 14, and the oil outlet of two-position two-way solenoid valve 14 connects fuel tank 5, second oil circuit 11 comprises sequence valve 15 and two-position four-way solenoid valve 16, the filler opening of sequence valve 15 connects the oil outlet of the first one-way valve 8, the oil outlet of sequence valve 15 connects the pressure oil port P of two-position four-way solenoid valve 16, the return opening of two-position four-way solenoid valve 16 connects fuel tank 5 by series flow control valve 17, the actuator port of two-position four-way solenoid valve 16 connects a shear cylinder 1 respectively, shear cylinder 1 is single-rod piston cylinder, the actuator port A of two-position four-way solenoid valve 16 connects the rodless cavity of shear cylinder 1, and the actuator port B of two-position four-way solenoid valve 16 connects the rod chamber of shear cylinder 1, 3rd oil circuit 12 comprises reduction valve 18, second one-way valve 19 and the first accumulator 20, the filler opening of reduction valve 18 is connected with the oil outlet of the first one-way valve 8, the oil outlet of reduction valve 18 connects the filler opening of the second one-way valve 19, first accumulator 20 is connected to the oil outlet of the second one-way valve 19, in second oil circuit, the outside control mouth of sequence valve 15 of 11 is connected between the first accumulator 20 and the second one-way valve 19, article two, be connected with three binder cylinders 3 and two backgauge cylinders 2 respectively after the oil outlet parallel connection of the second one-way valve 19 in the 3rd oil circuit 12, described binder cylinder 3 is single-acting plunger type hydraulic cylinder, described backgauge cylinder 2 be hydraulic cylinder with double piston rods, the diameter of the piston rod of backgauge cylinder 2 side cavity is greater than the diameter of opposite side cavity piston rod, article described two, be connected with backgauge cylinder 2 small bore piston bar side cavity after the oil outlet parallel connection of the second one-way valve 19 in the 3rd oil circuit 12.
The second pressure gauge 21 and the first relief valve 22 is connected with between the first accumulator 20 in three binder cylinders 3 and the 3rd oil circuit 12, the filler opening of the first relief valve 22 connects the first accumulator 20 and the second pressure gauge 21 respectively, the oil outlet of the first relief valve 22 connects fuel tank 5, the 3rd accumulator 23 is connected with after parallel connection between the cavity of the enlarged bore piston bar side of two backgauge cylinders 2, 3rd pressure gauge 24 and the second relief valve 25, the filler opening of the second relief valve 25 connects the 3rd pressure gauge 24 respectively, the cavity of the enlarged bore piston bar side of the 3rd accumulator 23 and two backgauge cylinders 2.
The working principle of the guillotine shear synchronous control hydraulic system based on Dual-output shaft motor of the present invention is as follows:
1, Dual-output shaft motor 7 starts, and the electromagnet 1YD of two-position two-way solenoid valve 14, the electromagnet 2YD of two-position four-way solenoid valve 16 must not be electric, and system is in unloading condition, two shear cylinder 1 transfixions.
2, the electromagnet 1YD of two-position two-way solenoid valve 14 obtains electric, and fluid is through reduction valve 18, and enter three binder cylinders 2 and two backgauge cylinders 3, plate is compacted, and backgauge cylinder 2 leaves plate.
3, system pressure raises, and sequence valve 15 is opened, and fluid, through two-position four-way solenoid valve 16, enters the rodless cavity of two shear cylinders 1, and plate is slowly sheared.
4, the electromagnet 2YD of two-position four-way solenoid valve 16 obtains electric, and two-position four-way solenoid valve 16 left position work, fluid enters the rod chamber of two shear cylinders 1, tool rest return stroke.
5, the 3rd accumulator 23 gives two backgauge cylinder 2 fuel feeding, the backhaul of two backgauge cylinders 2.
Claims (2)
1. based on a shear plate synchronous control hydraulic system for Dual-output shaft motor, it is characterized in that: comprise two identical shear cylinders, two identical backgauge cylinders, three identical binder cylinders and shear cylinder synchronous control system, the Dual-output shaft motor that described shear cylinder synchronous control system comprises fuel tank, two identical oil hydraulic pumps and drives two oil hydraulic pumps to rotate, the filler opening of two oil hydraulic pumps connects fuel tank, the oil outlet of two oil hydraulic pumps is connected to the first one-way valve, the filler opening of each first one-way valve connects with the oil outlet of corresponding oil hydraulic pump respectively, and the oil outlet of each first one-way valve is connected to the first pressure gauge, the oil outlet of each first one-way valve is connected to the first oil circuit, the second oil circuit and the 3rd oil circuit, first oil circuit comprises pilot operated compound relief valve and two-position two-way solenoid valve, the filler opening of pilot operated compound relief valve connects the oil outlet of the first one-way valve, the oil outlet of pilot operated compound relief valve connects fuel tank, the control hydraulic fluid port of pilot operated compound relief valve connects the filler opening of two-position two-way solenoid valve, and the oil outlet of two-position two-way solenoid valve connects fuel tank, second oil circuit comprises sequence valve and two-position four-way solenoid valve, the filler opening of sequence valve connects the oil outlet of the first one-way valve, the oil outlet of sequence valve connects the pressure oil port P of two-position four-way solenoid valve, the oil return inlet T of two-position four-way solenoid valve connects fuel tank, the actuator port of two-position four-way solenoid valve connects a shear cylinder respectively, described shear cylinder is single-rod piston cylinder, the actuator port A of two-position four-way solenoid valve connects the rodless cavity of shear cylinder, and the actuator port B of two-position four-way solenoid valve connects the rod chamber of shear cylinder, 3rd oil circuit comprises reduction valve, second one-way valve and the first accumulator, the filler opening of reduction valve is connected with the oil outlet of the first one-way valve, the oil outlet of reduction valve connects the filler opening of the second one-way valve, described first accumulator is connected to the oil outlet of the second one-way valve, the outside control mouth of the sequence valve in described second oil circuit is connected between the first accumulator and the second one-way valve, article two, be connected with three binder cylinders and two backgauge cylinders respectively after the oil outlet parallel connection of the second one-way valve in the 3rd oil circuit, described binder cylinder is single-acting plunger type hydraulic cylinder, described backgauge cylinder be hydraulic cylinder with double piston rods, the diameter of the piston rod of backgauge cylinder side cavity is greater than the diameter of opposite side cavity piston rod, article described two, be connected with described backgauge cylinder small bore piston bar side cavity after the oil outlet parallel connection of the second one-way valve in the 3rd oil circuit, the second pressure gauge and the first relief valve is connected with between the first accumulator in described three binder cylinders and the 3rd oil circuit, the filler opening of the first relief valve connects the first accumulator and the second pressure gauge respectively, the oil outlet of the first relief valve connects fuel tank, be connected with the 3rd accumulator, the 3rd pressure gauge and the second relief valve after parallel connection between the cavity of the enlarged bore piston bar side of described two backgauge cylinders, the filler opening of described second relief valve connects the cavity of the enlarged bore piston bar side of the 3rd pressure gauge, the 3rd accumulator and two backgauge cylinders respectively.
2. a kind of shear plate synchronous control hydraulic system based on Dual-output shaft motor according to claim 1, it is characterized in that: between the oil return inlet T of described two two-position four-way solenoid valves and fuel tank, be connected to series flow control valve, the filler opening of series flow control valve connects the oil return inlet T of two-position four-way solenoid valve, and the oil outlet of series flow control valve connects fuel tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410088506.2A CN103807239B (en) | 2014-03-12 | 2014-03-12 | A kind of shear plate synchronous control hydraulic system based on Dual-output shaft motor |
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| CN201410088506.2A CN103807239B (en) | 2014-03-12 | 2014-03-12 | A kind of shear plate synchronous control hydraulic system based on Dual-output shaft motor |
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| CN103807239B true CN103807239B (en) | 2015-09-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019166695A1 (en) * | 2018-02-27 | 2019-09-06 | Fiellberg Oy | Power unit for controlling a pressure medium for load control |
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| CN104043866B (en) * | 2014-06-20 | 2016-08-24 | 安徽东海机床制造有限公司 | High-speed shearing device |
| JP2016080084A (en) * | 2014-10-17 | 2016-05-16 | 三菱重工業株式会社 | Follow-up pressure device, machine tool and operational method for follow-up pressure device at machine tool |
| CN105041744B (en) * | 2015-06-25 | 2017-03-01 | 广州艾默德驱动系统技术有限公司 | A kind of PLC control system of ceramic press servo energy-saving control system and method |
| CN105382324B (en) * | 2015-12-04 | 2017-08-11 | 天水锻压机床(集团)有限公司 | A kind of lock formula plate shearing machine hydraulic control system |
| CN105485516B (en) * | 2015-12-28 | 2018-08-07 | 重庆耐德能源装备集成有限公司 | The inner-cooled hydraulic booster machine of natural gas supply sub-station |
| CN106270722B (en) * | 2016-08-31 | 2018-04-03 | 安徽省华夏机床制造有限公司 | A kind of control method of lock formula hydraulic system of cutting machine |
| CN107605871B (en) * | 2017-10-20 | 2023-11-14 | 江苏高德液压机械有限公司 | Hydraulic system of box-type shearing machine with stepped compression type pushing device |
| PL237674B1 (en) * | 2017-11-14 | 2021-05-17 | Politechnika Poznanska | System for assessment of leaktightness of the injection pump forcing sections |
| CN108994367B (en) * | 2018-09-29 | 2023-08-25 | 安徽东海机床制造有限公司 | Plate shearing machine and hydraulic system thereof |
| CN109695597B (en) * | 2019-02-02 | 2020-05-12 | 无锡贝斯特精机股份有限公司 | Hydraulic control system capable of realizing clamp prepressing and main pressing |
| CN114087247A (en) * | 2021-11-30 | 2022-02-25 | 中色科技股份有限公司 | Self-synchronizing hydraulic system of aluminum strip sewing machine |
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| CN103807239A (en) | 2014-05-21 |
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