CN102305224B - Dual-valve flow converging hydraulic control system - Google Patents
Dual-valve flow converging hydraulic control system Download PDFInfo
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- CN102305224B CN102305224B CN201110063090.5A CN201110063090A CN102305224B CN 102305224 B CN102305224 B CN 102305224B CN 201110063090 A CN201110063090 A CN 201110063090A CN 102305224 B CN102305224 B CN 102305224B
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- control valve
- directional control
- multiple directional
- hydraulic
- flow
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Abstract
The invention relates to a dual-valve flow converging hydraulic control system, which comprises a movable arm hydraulic oil cylinder, a multipath reversing valve I, a hydraulic oil pump, a multipath reversing valve II, a flow sensor, a programmable logic controller (PLC) and a contactor, wherein the multipath reversing valve I is connected in parallel with the multipath reversing valve II; one end of the multipath reversing valve I and the multipath reversing valve II which are connected in parallel is connected with a hydraulic oil tank by the hydraulic oil pump, and the other end of the multipath reversing valve I and the multipath reversing valve II which are connected in parallel is connected with the movable arm hydraulic oil cylinder; the movable arm hydraulic oil cylinder, the flow sensor, the PLC and the contactor are connected with the multipath reversing valve I and the multipath reversing valve II sequentially; and the multipath reversing valve I and the multipath reversing valve II are multiway adjustable solenoid valves. In the dual-valve flow converging hydraulic control system, by introducing the two multipath reversing valves which are connected in parallel, the dual-valve flow converging control of the hydraulic movable arm hydraulic oil cylinder is realized, and the problem of insufficient oil supply in the hydraulic movable arm hydraulic oil cylinder sometimes is solved effectively.
Description
Technical field
Invention relates to a kind of hydraulic control system, especially relates to a kind of Dual-valve flow converging hydraulic control system.
Background technique
The application of hydraulics in life and in producing is more and more wider.Along with scientific and technological development, also more and more higher to the requirement of hydraulic control precision.Multiple directional control valve is as very important a kind of device in hydrovalve control field, and its application area is also more and more wider.But the design discharge of existing multiple directional control valve is limited, sometimes adopt single hydraulicdirectional control valve to control a certain hydraulic pressure swing arm hydraulic jack, there will be supply capability not enough, even occur that the oily ability of the specified mistake of selector valve is much smaller than the situation of the oily ability of the desired mistake of swing arm hydraulic jack, thereby affect the precision of hydraulic control.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the defect that existing multiple directional control valve is crossed oily scarce capacity, and a kind of Dual-valve flow converging hydraulic control system is provided.
Technological scheme of the present invention is: a kind of Dual-valve flow converging hydraulic control system, comprise swing arm hydraulic jack, multiple directional control valve I, hydraulic-pressure pump, also be provided with multiple directional control valve II, flow transducer, PLC programmable controller, contactor, described multiple directional control valve I is in parallel with multiple directional control valve II, multiple directional control valve I is connected with hydraulic oil container by hydraulic-pressure pump with the one end after multiple directional control valve II parallel connection, and the other end is connected with swing arm hydraulic jack; Swing arm hydraulic jack, flow transducer, PLC programmable controller, contactor are connected successively with multiple directional control valve I, multiple directional control valve II; Multiple directional control valve I and multiple directional control valve II are multidirectional adjustable electromagnetic valve.
Its working procedure is: when swing arm hydraulic jack is worked, actual demand hydraulic fluid flow rate when hydraulic system detects the work of swing arm hydraulic jack by flow transducer, and this signal is passed to PLC programmable controller, PLC programmable controller carries out optimum distribution by calculating to the flow of hydraulic oil in need to flow through multiple directional control valve I and multiple directional control valve II with the relevant control parameter of multiple directional control valve II according to being stored in multiple directional control valve I wherein, automatically this hydraulic fluid flow rate instruction is decomposed, also calculate the flow that requires multiple directional control valve I and multiple directional control valve II to pass through, and then, PLC programmable controller makes multiple directional control valve I and multiple directional control valve II regulate corresponding control switch according to command adapted thereto according to the flow control signal of having optimized by contactor, primer fluid oil-pressing pump, hydraulic oil passes through multiple directional control valve I and multiple directional control valve II according to the flow of dispensed, and then hydraulic oil by multiple directional control valve I and the hydraulic oil by multiple directional control valve II import swing arm hydraulic jack, like this, just can effectively expand the application area of existing multiple directional control valve, solve single hydraulic multichannel conversion valve the problem of supply capability deficiency is being appearred in a certain specific swing arm hydraulic jack as the used time.
The present invention is placed between swing arm hydraulic jack and hydraulic-pressure pump with form in parallel by two multiple directional control valves, has effectively solved the problem that supply capability deficiency appears in hydraulic pressure swing arm hydraulic jack.
Accompanying drawing explanation
Fig. 1 is structure and embodiment's schematic diagram of double valve confluence hydraulic control device of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
With reference to Fig. 1, the present embodiment comprises swing arm hydraulic jack 1, multiple directional control valve I2, multiple directional control valve II3, flow transducer 4, PLC programmable controller 5, contactor 6, hydraulic-pressure pump 7, described multiple directional control valve I2 is in parallel with multiple directional control valve II3, multiple directional control valve I2 is connected with hydraulic oil container 8 by hydraulic-pressure pump 7 with the one end after multiple directional control valve II3 parallel connection, and the other end is connected with swing arm hydraulic jack 1; Swing arm hydraulic jack 1, flow transducer 4, PLC programmable controller 5, contactor 6 are connected successively with multiple directional control valve I2, multiple directional control valve II3; Multiple directional control valve I2 and multiple directional control valve II3 are multidirectional adjustable electromagnetic valve.
Its working procedure is: when 1 work of swing arm hydraulic jack, actual demand hydraulic fluid flow rate when hydraulic system detects 1 work of swing arm hydraulic jack by flow transducer 4, and this signal is passed to PLC programmable controller 5, PLC programmable controller 5 carries out optimum distribution by calculating to the flow of hydraulic oil in need to flow through multiple directional control valve I2 and multiple directional control valve II3 with the relevant control parameter of multiple directional control valve II3 according to the multiple directional control valve I2 being stored in wherein, automatically this hydraulic fluid flow rate instruction is decomposed, also calculate the flow that requires multiple directional control valve I2 and multiple directional control valve II3 to pass through, and then PLC programmable controller 5 makes multiple directional control valve I2 and multiple directional control valve II3 regulate corresponding control switch according to command adapted thereto according to the flow control signal of having optimized by contactor 6, primer fluid oil-pressing pump 7, hydraulic oil passes through multiple directional control valve I2 and multiple directional control valve II3 according to the flow of dispensed, and then hydraulic oil by multiple directional control valve I2 and the hydraulic oil by multiple directional control valve II3 import swing arm hydraulic jack 1.
The present invention is placed between swing arm hydraulic jack and hydraulic-pressure pump with form in parallel by two multiple directional control valves, has effectively solved the problem that supply capability deficiency appears in hydraulic pressure swing arm hydraulic jack.
Claims (1)
1. a Dual-valve flow converging hydraulic control system, comprise swing arm hydraulic jack, multiple directional control valve I, hydraulic-pressure pump, it is characterized in that, also be provided with multiple directional control valve II, flow transducer, PLC programmable controller, contactor, described multiple directional control valve I is in parallel with multiple directional control valve II, multiple directional control valve I is connected with hydraulic oil container by hydraulic-pressure pump with the one end after multiple directional control valve II parallel connection, and the other end is connected with swing arm hydraulic jack; Swing arm hydraulic jack, flow transducer, PLC programmable controller, contactor are connected successively with multiple directional control valve I, multiple directional control valve II; Multiple directional control valve I and multiple directional control valve II are multidirectional adjustable electromagnetic valve;
When swing arm hydraulic jack is worked, actual demand hydraulic fluid flow rate when hydraulic system detects the work of swing arm hydraulic jack by flow transducer, and this signal is passed to PLC programmable controller, PLC programmable controller carries out optimum distribution by calculating to the flow of hydraulic oil in need to flow through multiple directional control valve I and multiple directional control valve II with the relevant control parameter of multiple directional control valve II according to being stored in multiple directional control valve I wherein, automatically this hydraulic fluid flow rate instruction is decomposed, also calculate the flow that requires multiple directional control valve I and multiple directional control valve II to pass through, and then, PLC programmable controller makes multiple directional control valve I and multiple directional control valve II regulate corresponding control switch according to command adapted thereto according to the flow control signal of having optimized by contactor, primer fluid oil-pressing pump, hydraulic oil passes through multiple directional control valve I and multiple directional control valve II according to the flow of dispensed, and then hydraulic oil by multiple directional control valve I and the hydraulic oil by multiple directional control valve II import swing arm hydraulic jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110063090.5A CN102305224B (en) | 2011-03-16 | 2011-03-16 | Dual-valve flow converging hydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110063090.5A CN102305224B (en) | 2011-03-16 | 2011-03-16 | Dual-valve flow converging hydraulic control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102305224A CN102305224A (en) | 2012-01-04 |
| CN102305224B true CN102305224B (en) | 2014-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110063090.5A Expired - Fee Related CN102305224B (en) | 2011-03-16 | 2011-03-16 | Dual-valve flow converging hydraulic control system |
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| CN (1) | CN102305224B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043828B (en) * | 2014-06-26 | 2016-01-20 | 南通市腾达锻压机床厂 | A kind of servo-control system device shaping for wet type magnetic material |
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| CN1166192A (en) * | 1995-10-09 | 1997-11-26 | 新卡特彼勒三菱株式会社 | Control device for construction machine |
| CN201037377Y (en) * | 2007-02-11 | 2008-03-19 | 柳州市华力实业有限责任公司 | Horizontal positioning drilling machine valve control interflow speeding up hydraulic system |
| CN101230870A (en) * | 2008-02-19 | 2008-07-30 | 湖南三一起重机械有限公司 | Flow-control module of crane executing mechanism |
| CN201236857Y (en) * | 2008-05-23 | 2009-05-13 | 浙江大学 | Parallel connection and leading type high-volume high-frequency response electrohydraulic servo valve |
| CN201547049U (en) * | 2009-11-23 | 2010-08-11 | 石家庄煤矿机械有限责任公司 | High flow multi-pump multi-valve flow collecting system |
| CN101799027A (en) * | 2010-03-15 | 2010-08-11 | 何扬东 | Oil circuit device provided with reversing valves in parallel connection |
| CN201982414U (en) * | 2011-03-16 | 2011-09-21 | 陈海波 | Double valve confluence hydraulic control device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3796895B2 (en) * | 1997-05-08 | 2006-07-12 | 株式会社豊田自動織機 | Hydraulic control device |
-
2011
- 2011-03-16 CN CN201110063090.5A patent/CN102305224B/en not_active Expired - Fee Related
Patent Citations (7)
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|---|---|---|---|---|
| CN1166192A (en) * | 1995-10-09 | 1997-11-26 | 新卡特彼勒三菱株式会社 | Control device for construction machine |
| CN201037377Y (en) * | 2007-02-11 | 2008-03-19 | 柳州市华力实业有限责任公司 | Horizontal positioning drilling machine valve control interflow speeding up hydraulic system |
| CN101230870A (en) * | 2008-02-19 | 2008-07-30 | 湖南三一起重机械有限公司 | Flow-control module of crane executing mechanism |
| CN201236857Y (en) * | 2008-05-23 | 2009-05-13 | 浙江大学 | Parallel connection and leading type high-volume high-frequency response electrohydraulic servo valve |
| CN201547049U (en) * | 2009-11-23 | 2010-08-11 | 石家庄煤矿机械有限责任公司 | High flow multi-pump multi-valve flow collecting system |
| CN101799027A (en) * | 2010-03-15 | 2010-08-11 | 何扬东 | Oil circuit device provided with reversing valves in parallel connection |
| CN201982414U (en) * | 2011-03-16 | 2011-09-21 | 陈海波 | Double valve confluence hydraulic control device |
Non-Patent Citations (1)
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| JP特开平10－310399A 1998.11.24 * |
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| CN102305224A (en) | 2012-01-04 |
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