CN102588389A - Hydraulic power source shutoff device capable of guaranteeing site operation safety - Google Patents
Hydraulic power source shutoff device capable of guaranteeing site operation safety Download PDFInfo
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- CN102588389A CN102588389A CN2012100588086A CN201210058808A CN102588389A CN 102588389 A CN102588389 A CN 102588389A CN 2012100588086 A CN2012100588086 A CN 2012100588086A CN 201210058808 A CN201210058808 A CN 201210058808A CN 102588389 A CN102588389 A CN 102588389A
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- control valve
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Abstract
The invention discloses a hydraulic power source shutoff device capable of guaranteeing site operation safety, which is characterized by comprising supports (7) and a valve block (8). Further, combined gaskets (12) are mounted on pipeline joints (11), the pipeline joints are respectively mounted on four connectors of the valve block (8), and two pressure measuring joints (10) are screwed into the valve block (8) from the upper side thereof. A spring (6) is mounted in a direction valve spool (5) and then mounted into a direction valve (4) to form a direction valve component, two direction valve components are respectively mounted into the valve block (8) from the upper side thereof and are respectively provided with valve pads (9), and the valve pads (9) are assembled with the valve block (8) fixedly and provided with electromagnetic reversing valves (3) so that two devices in same structure are formed. The hydraulic power source shutoff device is simple in structure and capable of realizing shutoff accurately and controlling on and off of a main hydraulic oil supply pipeline and a main hydraulic oil return pipeline simultaneously. After being shut off, hydraulic actuating elements are kept at the initial positions, and accordingly safety of operators entering the region is guaranteed and the bottleneck of severe hidden dangers on sites is broken through.
Description
Technical field:
The present invention relates to technical field of metallurgical machinery, is a kind of hydraulic power supply shut-off means of guaranteeing field work safe specifically, can be widely used in effectively cutting off hydraulic power supply in the metallurgical machinery, guarantees to get into site operation personnel's safety.
Background technique:
At present, for the development of smelter along with industry, part metallurgical machinery such as hot rolling line; Equipment is through transforming back field apparatus narrow space, and expander equipment hydraulic control vavle shelf is more, and hydraulic pipe line is intensive; Deep-rooted, each vavle shelf has tens of various hydrovalves by a plurality of executive components of Region control; Because of receiving the field apparatus condition restriction, hydraulic pipe line valve mounting point is narrow, closes difficulty.Produce the tool and mould time of changing in order to make full use of; (hydraulic pressure need be used in the zone that the scene has to carry out work such as field apparatus spot check, fault treatment repairing; Can not termination of pumping carry out system's release); Entrust construction simultaneously because of the multiplex (MUX) plants, can't carry out safety verification, do not accomplish getting into site operation again after the hydraulic power supply cut-out; And meta functional character difference because of each hydraulic control component; Personnel are more random for the open and close valve; Under the uncomprehending again situation of hydraulic principle, the workmen can manually disclose valve and cause the equipment misoperation sometimes, causes the hydraulic actuator initial position to change; Be prone to cause human casualty accident, have serious potential safety hazard.
Summary of the invention:
The objective of the invention is to overcome the deficiency of above-mentioned prior art; And a kind of hydraulic power supply shut-off means of guaranteeing field work safe is provided; Mainly solve the working site in the time can't stopping the hydraulic pressure release; When need getting into certain equipment region and carrying out equipment point-detecting, maintenance or repairing etc. and construct in many ways, manually disclose valve and be prone to cause the equipment misoperation, cause the hydraulic actuator initial position to change and have serious problems such as potential safety hazard.
Type of the present invention realizes through following technological scheme: a kind of hydraulic power supply shut-off means of guaranteeing field work safe; Its special way is that it comprises bearing; Standing valve piece on the bearing, combination mat is installed on the pipe joint, and pipe joint is four; Screw in two pipe joints on the valve piece two side respectively up and down, valve piece top screws in two pressure measuring tie-ins; Spring is installed in the direction spool; Reinstall in the directional control valve; Form a directional control valve assembly, the both direction valve assembly is respectively installed to the valve piece from valve piece top, the side of directional control valve assembly and bottom respectively with screw-in valve piece in pipe joint communicate; Establish the valve pad plate on the both direction valve assembly respectively, valve pad plate and valve piece fixation group are dressed up one; Establish solenoid directional control valve on the valve pad plate respectively, form the identical device of two covers.
Further, said direction spool is a cone structure.
A kind of hydraulic power supply shut-off means of guaranteeing field work safe of the present invention, its critical piece is directional control valve assembly and solenoid directional control valve.The function of the direction spool in the directional control valve assembly is only to allow fluid from a direction free-flow, and built-in spring makes spool be in closed condition, through the control of hydraulic control oil, under the high pressure oil effect, spool is opened, and spool is a cone structure, and the pressure loss is little.Be installed on the preceding main fuel feeding of hydraulic pressure vavle shelf, the main oil return main pipe rail; When needing to get into site operation; Cut off certain regional hydraulic pressure vavle shelf power source, can thoroughly stop the potential safety hazard of construction area hydraulic actuator generation misoperation, guarantee to get into site operation personnel personal safety.
Of the present inventionly a kind ofly guarantee that compared with present technology the hydraulic power supply shut-off means of field work safe has outstanding substantive distinguishing features and remarkable progress; 1, device has simple in structure; Accurately cut off, advantages such as flexible operation have fundamentally solved when making full use of production and construct off time; And can't cut off hydraulic power supply, there is the problem of accident potential; 2, can control the assemblying body of the switching state of hydraulic pressure master fuel feeding, main return line simultaneously, the hydraulic actuator after the cut-out rests on the position when stopping all the time, even a defective valve is arranged, hydraulic actuator misoperation can not take place yet, and is safe and reliable; 3, cut off certain regional hydraulic power supply; And make hydraulic actuator be in initial position all the time; Carry out necessary security by spot check, production and workmen and confirm " tripartite contact is listed ", prevent misoperation, get rid of the accident potential of hydraulic actuator misoperation; Guarantee getting into should zone operating personnel's safety, has solved the on-the-spot bottleneck problem that has major safety risks.
Description of drawings:
Fig. 1 is a sectional structure schematic representation power of the present invention;
Fig. 2 is an external structure schematic representation of the present invention;
Fig. 3 is control principle figure of the present invention.
Embodiment:
In order better to understand and to implement, provide specific embodiment below in conjunction with accompanying drawing, specify the present invention.
Embodiment, referring to Fig. 1,2, processing and fabricating bearing 7 valve pieces 8; Valve piece 8 usefulness bolt to bearing 7, are installed to combination mat 12 on the pipe joint 11, and pipe joint 11 is four; Screw in the bi-side of valve piece 8 together up and down, two pressure measuring tie-ins 10 are screwed in above the valve piece 8; Spring 6 is installed in the direction spool 5; Reinstall in the directional control valve 4; Form a directional control valve assembly, the both direction valve assembly be installed to from above respectively in the valve piece 8, this moment the directional control valve assembly side and bottom respectively with screw-in valve piece 8 in pipe joint 11 communicate; Valve pad plate 9 is pushed down the directional control valve assembly respectively from the top, with bolt 13 valve pad plate 9 and valve piece 8 are assembled into one; Again two solenoid directional control valves 3 are respectively installed on the valve pad plate 9, form two covering devices, be installed on the same valve piece 8, be assembled into an assemblying body that can cut off the hydraulic power supply shut-off means of main confession, main return line simultaneously.The throw over switch of a may command switching is installed on operating table, is utilized power line that switch is connected with the hydraulic power supply shut-off means, when connecting the 24V DC electrical source, the hydraulic power supply shut-off means breaks off; The hydraulic power supply shut-off means is opened during outage.
A kind of hydraulic power supply shut-off means of guaranteeing field work safe of the present invention during use, is connected the hydraulic power supply shut-off means on the hydraulic pressure master fuel feeding before the hydraulic pressure vavle shelf 1, the main return line; Vavle shelf 1 connects control unit control oil cylinder 2, and its control principle is following, referring to Fig. 3; When the electromagnet 1DT of solenoid directional control valve 3 is not charged; Solenoid directional control valve is in position, left chamber, and at this moment, P mouth and A mouth are obstructed; Because of the X mouth of directional control valve 4 is identical with B, the T mouth of solenoid directional control valve 3, be in pressure-less state; High pressure oil has overcome the power of the X mouth place spring 6 of direction spool 5 tops through the A of directional control valve 4 mouth, and direction spool 5 is upwards opened, and the A mouth that high pressure oil prolongs directional control valve 4 is flowed through passage that direction spool 5 opens to the B mouth, and main fuel feeding P is unimpeded to vavle shelf 1.Carry out necessary operation through the control of the control unit on the vavle shelf 1 oil cylinder 2.When 2DT was not charged, solenoid directional control valve 3 was in position, left chamber, and at this moment, P ' mouth is obstructed with A ' mouth, and the X ' mouth of directional control valve 4 is identical with B ', the T ' mouth of solenoid directional control valve 3, is in pressure-less state; The T mouth fluid of vavle shelf 1 is through the A ' of directional control valve 4 mouth; Overcome the power of the X ' mouth place spring 6 of direction spool 5 tops, direction spool 5 is upwards opened, the flow through passage of direction spool 5 unlatchings of A ' mouth that hydraulic oil prolongs directional control valve 4 flows to the T mouth of main return line to B ' mouth; Main oil return is unimpeded; After the two valve execution, carry out necessary operation, be normal working through the control of the control unit on the vavle shelf 1 oil cylinder 2.
When the electromagnet 1DT of solenoid directional control valve 3 is charged; Solenoid directional control valve is in position, right chamber; At this moment, P mouth and B, X mouth are identical, because of directional control valve 4X mouth control oil communicates with solenoid directional control valve P mouth; Be in high pressure conditions, the 6 pairs of direction spools 5 of spring in X mouth control oil and the directional control valve 4 have produced common downward power; When high pressure oil P flowed through directional control valve 4A mouth, because of the power of the direction spool 5 tops power greater than the below, at this moment, direction spool 5 was in closed condition, and main fuel feeding is cut off.When the electromagnet 2DT of solenoid directional control valve 3 is charged; Solenoid directional control valve is in position, right chamber, and at this moment, P ' mouth and B ', X ' mouth are identical; Because of the X ' mouth of directional control valve 4 communicates with solenoid directional control valve P ' mouth, X ' mouth control oil has produced common downward power with 6 pairs of direction spools 5 of spring in the directional control valve 4; Because of the power of the direction spool 5 tops power greater than the below, at this moment, direction spool 5 is in closed condition, and main oil return T is cut off, and vavle shelf 1 no oil passes through, and all oil cylinder 2 executive components such as grade are in the state of quitting work.Thereby realized the cut-out power source, guaranteed to get into the effect of certain regional workmen's personal safety.
Claims (2)
1. hydraulic power supply shut-off means of guaranteeing field work safe; It is characterized in that it comprises bearing (7); Bearing (7) is gone up standing valve piece (8), and combination mat (12) is installed on the pipe joint (11), and pipe joint (11) is four; Valve piece (8) screws in two pipe joints (11) respectively up and down on the two side, and valve piece (8) top screws in two pressure measuring tie-ins (10); Spring (6) is installed in the direction spool (5); Reinstall in the directional control valve (4); Form a directional control valve assembly, the both direction valve assembly is respectively installed to the valve piece (8) from valve piece (8) top, the side of directional control valve assembly and bottom respectively with screw-in valve piece (8) in pipe joint (11) communicate; Establish valve pad plate (9) on the both direction valve assembly respectively, valve pad plate (9) is dressed up one with valve piece (8) fixation group; Establish solenoid directional control valve (3) on the valve pad plate (9) respectively, form the identical device of two covers.
2. a kind of hydraulic power supply shut-off means of guaranteeing field work safe according to claim 1 is characterized in that said direction spool (5) is cone structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210058808.6A CN102588389B (en) | 2012-03-08 | 2012-03-08 | Hydraulic power source shutoff device capable of guaranteeing site operation safety |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210058808.6A CN102588389B (en) | 2012-03-08 | 2012-03-08 | Hydraulic power source shutoff device capable of guaranteeing site operation safety |
Publications (2)
| Publication Number | Publication Date |
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| CN102588389A true CN102588389A (en) | 2012-07-18 |
| CN102588389B CN102588389B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210058808.6A Expired - Fee Related CN102588389B (en) | 2012-03-08 | 2012-03-08 | Hydraulic power source shutoff device capable of guaranteeing site operation safety |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2394072Y (en) * | 1998-12-17 | 2000-08-30 | 冶金工业部武汉钢铁设计研究院 | Hydraulic device for shutting valve urgently |
| US6257859B1 (en) * | 1999-01-25 | 2001-07-10 | Nissei Plastic Industrial Co., Ltd. | Hydraulic circuit of an injection molding machine |
| CN101033733A (en) * | 2007-04-11 | 2007-09-12 | 浙江大学 | Large and middle wind turbine digital intelligent hydraulic brake system |
| CN201080932Y (en) * | 2007-04-30 | 2008-07-02 | 江苏鼎晟液压有限公司 | Control valve assembly |
| CN201346841Y (en) * | 2008-12-18 | 2009-11-18 | 宁波海天重工机械有限公司 | Hydraulic insurance circuit of large injection molding machine |
| CN101664798A (en) * | 2008-09-04 | 2010-03-10 | 广州震高机械有限公司 | Injection 'braking' device of die casting machine |
| WO2010099699A1 (en) * | 2009-03-06 | 2010-09-10 | 上海人豪液压技术有限公司 | Combined hydraulic integrated control valve block system |
| CN101943186A (en) * | 2009-09-21 | 2011-01-12 | 邵阳维克液压股份有限公司 | Hydraulic control valve group |
-
2012
- 2012-03-08 CN CN201210058808.6A patent/CN102588389B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2394072Y (en) * | 1998-12-17 | 2000-08-30 | 冶金工业部武汉钢铁设计研究院 | Hydraulic device for shutting valve urgently |
| US6257859B1 (en) * | 1999-01-25 | 2001-07-10 | Nissei Plastic Industrial Co., Ltd. | Hydraulic circuit of an injection molding machine |
| CN101033733A (en) * | 2007-04-11 | 2007-09-12 | 浙江大学 | Large and middle wind turbine digital intelligent hydraulic brake system |
| CN201080932Y (en) * | 2007-04-30 | 2008-07-02 | 江苏鼎晟液压有限公司 | Control valve assembly |
| CN101664798A (en) * | 2008-09-04 | 2010-03-10 | 广州震高机械有限公司 | Injection 'braking' device of die casting machine |
| CN201346841Y (en) * | 2008-12-18 | 2009-11-18 | 宁波海天重工机械有限公司 | Hydraulic insurance circuit of large injection molding machine |
| WO2010099699A1 (en) * | 2009-03-06 | 2010-09-10 | 上海人豪液压技术有限公司 | Combined hydraulic integrated control valve block system |
| CN101943186A (en) * | 2009-09-21 | 2011-01-12 | 邵阳维克液压股份有限公司 | Hydraulic control valve group |
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| CN102588389B (en) | 2015-04-08 |
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Granted publication date: 20150408 Termination date: 20210308 |