CN103707549B - Hydraulic press oil tank level supervising device - Google Patents

Hydraulic press oil tank level supervising device Download PDF

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Publication number
CN103707549B
CN103707549B CN201310686535.4A CN201310686535A CN103707549B CN 103707549 B CN103707549 B CN 103707549B CN 201310686535 A CN201310686535 A CN 201310686535A CN 103707549 B CN103707549 B CN 103707549B
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China
Prior art keywords
oil tank
level value
displacement transducer
flange
established
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CN201310686535.4A
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Chinese (zh)
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CN103707549A (en
Inventor
耿培涛
辛昌杰
刘爱兵
徐红
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Magang Group Holding Co Ltd
Maanshan Iron and Steel Co Ltd
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Magang Group Holding Co Ltd
Maanshan Iron and Steel Co Ltd
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Abstract

Hydraulic press oil tank level supervising device belongs to liquid levels indicator techniques field, particularly relates to a kind of indicating device utilizing magnetic operator.Feature is that this device is connected and composed by pressure oil tank, level monitoring mechanism and PLC, described level monitoring mechanism is connected and composed by communicating pipe, magnetic floating drum and displacement transducer, mechanism for monitoring establishes fuel feed hole, and the flange established with oil tank outer wall coordinates, and by packing ring, is bolted on oil tank; Displacement transducer and the PLC be placed in control room are electrically connected.Advantage is novel, and structure letter is gathered, rationally; Use displacement transducer, the alarm bit of oil tank level and jumping pump position accurately can be controlled within the scope of millimeter by programming, hydraulic system has oil leakage phenomenon, provide alarm signal in time, avoid a large amount of leakage of oil occurring, Energy Saving, reduce production cost, reduce environmental pollution, in good time replenisher force feed, ensure to produce and carry out smoothly.

Description

Hydraulic press oil tank level supervising device
Technical field
The invention belongs to liquid levels indicator techniques field, particularly relate to a kind of indicating device utilizing magnetic operator.
Background technology
Hydraulic oil in hydraulic press oil tank, because hydraulic press master cylinder moves up and down oil mass change and the leakage of oil causing hydraulic oil to reach liter more than 4000, all can cause the acute variation of liquid level, cause there is leakage of oil can not Timeliness coverage, affect other hydraulic press and normally work.Current oil tank level monitoring adopts external sensor magnetic turning column liquid level meter or magnetic float hydraulic ga(u)ge, monitors liquid level.The defect existed is when leakage of oil appears in forcing press hydraulic system, cannot make accurate warning, cause a large amount of external leakages of hydraulic system by current level, waste resource, contaminated environment.
Summary of the invention
In order to overcome the defect that prior art exists, the object of this invention is to provide a kind of hydraulic press oil tank level supervising device, providing alarm signal in time, avoiding a large amount of leakage of oil occurring, Energy Saving, reduce production cost, reduce environmental pollution.
Hydraulic press oil tank level supervising device, be characterized in that this device is connected and composed by pressure oil tank, level monitoring mechanism and PLC, described level monitoring mechanism is connected and composed by communicating pipe, magnetic floating drum and displacement transducer, mechanism for monitoring establishes fuel feed hole, the flange established with oil tank outer wall coordinates, and by packing ring, is bolted on oil tank; Displacement transducer and the PLC be placed in control room are electrically connected.
The present invention improves further, and the communicating pipe two ends of described level monitoring mechanism are annular, and annulus all establishes through hole, are connected respectively by screw with upper flange, lower flange; Communicating pipe, sidewall established oil through and lower oil through, coordinated with the flange that oil tank is established, by packing ring be bolted on oil tank outer wall; Displacement transducer is made up of measuring staff and electronics storehouse, and magnetic floating drum is sleeved on measuring staff, and measuring staff is placed in communicating pipe, upper end withstands in the groove that upper flange establishes, and screw thread is established in measuring staff lower end, coordinates with the screw that lower flange is established, spinning is on lower flange, and electronics storehouse is placed in below lower flange.
The present invention improves further, described PLC and displacement transducer are electrically connected, during oil tank level fluctuation, hollow magnetic floating drum moves up and down, hollow magnetic pontoon position is sent in PLC by displacement transducer at any time, the minimum liquid level value that current level value and leading portion occur can be compared by programming, if the minimum liquid level value that current level value occurs higher than leading portion, system continues the current level value reading the circulation of next time; If the minimum liquid level value that current level value occurs lower than leading portion, replace minimum liquid level value with current level value, provide oil leakage alarm simultaneously, so that in good time replenisher force feed.
Compared with prior art, advantage is novel, and structure letter is gathered, rationally; Use displacement transducer, the alarm bit of oil tank level and jumping pump position accurately can be controlled within the scope of millimeter by programming, hydraulic system has oil leakage phenomenon, provide alarm signal in time, avoid a large amount of leakage of oil occurring, Energy Saving, reduce production cost, reduce environmental pollution; In good time replenisher force feed, ensures to produce and carries out smoothly.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is hydraulic press oil tank level supervising device structural representation;
Fig. 2 is PLC program control flow chart of the present invention.
In figure: oil through under 1-upper flange, 2-screw, 3-communicating pipe, 4-measuring staff, 5-magnetic floating drum, 6-lower flange, 7-electronics storehouse, the upper oil through of 8-, 9-flange, 10-packing ring, 11-bolt, 12-oil tank, 13-.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
As seen from Figure 1, hydraulic press oil tank level supervising device, connected and composed by pressure oil tank 12, level monitoring mechanism and PLC, described level monitoring mechanism is connected and composed by communicating pipe 3, magnetic floating drum 5 and displacement transducer, mechanism for monitoring establishes fuel feed hole, the flange 9 established with oil tank outer wall coordinates, and is fixed on oil tank by packing ring 10, bolt 11; Displacement transducer and the PLC be placed in control room are electrically connected.
Be it can also be seen that by Fig. 1, communicating pipe 3 two ends of level monitoring mechanism are annular, annulus all establishes through hole, is connected respectively by screw 2 with upper flange 1, lower flange 6; Communicating pipe, sidewall established oil through 8 and lower oil through 13, and the flange 9 established with oil tank 12 coordinates, and is fixed on oil tank outer wall by packing ring 10 and bolt 11; Displacement transducer is made up of measuring staff 4 and electronics storehouse 7, and magnetic floating drum 5 is sleeved on measuring staff, and measuring staff is placed in communicating pipe, upper end withstands in the groove that upper flange establishes, and screw thread is established in measuring staff lower end, coordinates with the screw that lower flange is established, spinning is on lower flange, and electronics storehouse is placed in below lower flange.
As seen from Figure 2, PLC and displacement transducer are electrically connected, during oil tank level fluctuation, hollow magnetic floating drum moves up and down, hollow magnetic pontoon position is sent in PLC by displacement transducer at any time, the minimum liquid level value that current level value and leading portion occur can be compared by programming, if the minimum liquid level value that current level value occurs higher than leading portion, system continues the current level value reading the circulation of next time; If the minimum liquid level value that current level value occurs lower than leading portion, replace minimum liquid level value with current level value, provide oil leakage alarm simultaneously, so that in good time replenisher force feed.

Claims (2)

1. hydraulic press oil tank level supervising device, it is characterized in that, this device is connected and composed by pressure oil tank (12), level monitoring mechanism and PLC, described level monitoring mechanism is connected and composed by communicating pipe (3), hollow magnetic floating drum (5) and displacement transducer, level monitoring mechanism establishes fuel feed hole, the flange (9) established with pressure oil tank outer wall coordinates, and is fixed on pressure oil tank by packing ring (10), bolt (11); Displacement transducer and the PLC be placed in control room are electrically connected, during pressure oil tank level fluctuation, hollow magnetic floating drum moves up and down, hollow magnetic pontoon position is sent in PLC by displacement transducer at any time, the minimum liquid level value that current level value and leading portion occur can be compared by programming, if the minimum liquid level value that current level value occurs higher than leading portion, system continues the current level value reading the circulation of next time; If the minimum liquid level value that current level value occurs lower than leading portion, replace minimum liquid level value with current level value, provide oil leakage alarm simultaneously, so that in good time replenisher force feed.
2. hydraulic press oil tank level supervising device according to claim 1, it is characterized in that, communicating pipe (3) two ends of described level monitoring mechanism are annular, and annulus all establishes through hole, are connected respectively by screw (2) with upper flange (1), lower flange (6); Communicating pipe, sidewall established oil through (8) and lower oil through (13), and the flange (9) established with pressure oil tank (12) coordinates, and is fixed on pressure oil tank outer wall by packing ring (10) and bolt (11); Displacement transducer is made up of measuring staff (4) and electronics storehouse (7), hollow magnetic floating drum (5) is sleeved on measuring staff, measuring staff is placed in communicating pipe, upper end withstands in the groove that upper flange establishes, screw thread is established in measuring staff lower end, coordinate with the screw that lower flange is established, spinning is on lower flange, and electronics storehouse is placed in below lower flange.
CN201310686535.4A 2013-12-17 2013-12-17 Hydraulic press oil tank level supervising device Active CN103707549B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310686535.4A CN103707549B (en) 2013-12-17 2013-12-17 Hydraulic press oil tank level supervising device

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Application Number Priority Date Filing Date Title
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CN103707549B true CN103707549B (en) 2016-03-23

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104196826A (en) * 2014-08-05 2014-12-10 蔡宏磊 Electrical device for hydraulic leakage detection

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056979A (en) * 1975-10-31 1977-11-08 B/W Controls Inc. Liquid level sensor
CN201314837Y (en) * 2008-12-15 2009-09-23 北京航天金泰星测技术有限公司 Liquid level boundary instrument for sealed tank
CN201408050Y (en) * 2009-10-28 2010-02-17 通州世发船舶机械有限公司 Magnetic turning plate liquid level gauge
CN201955128U (en) * 2011-03-01 2011-08-31 南京坤拓土木工程科技有限公司 Magnetostriction liquid level meter
CN102303420A (en) * 2011-09-20 2012-01-04 天津市天锻压力机有限公司 Method for monitoring liquid level of hydraulic press by using plug-in analog quantity liquid level sensor
CN203766101U (en) * 2013-12-17 2014-08-13 马钢(集团)控股有限公司 Liquid level monitoring device for oil tank of oil press

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056979A (en) * 1975-10-31 1977-11-08 B/W Controls Inc. Liquid level sensor
CN201314837Y (en) * 2008-12-15 2009-09-23 北京航天金泰星测技术有限公司 Liquid level boundary instrument for sealed tank
CN201408050Y (en) * 2009-10-28 2010-02-17 通州世发船舶机械有限公司 Magnetic turning plate liquid level gauge
CN201955128U (en) * 2011-03-01 2011-08-31 南京坤拓土木工程科技有限公司 Magnetostriction liquid level meter
CN102303420A (en) * 2011-09-20 2012-01-04 天津市天锻压力机有限公司 Method for monitoring liquid level of hydraulic press by using plug-in analog quantity liquid level sensor
CN203766101U (en) * 2013-12-17 2014-08-13 马钢(集团)控股有限公司 Liquid level monitoring device for oil tank of oil press

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