CN2660495Y - Lever type intelligence level-sensing device - Google Patents
Lever type intelligence level-sensing device Download PDFInfo
- Publication number
- CN2660495Y CN2660495Y CN 200320104420 CN200320104420U CN2660495Y CN 2660495 Y CN2660495 Y CN 2660495Y CN 200320104420 CN200320104420 CN 200320104420 CN 200320104420 U CN200320104420 U CN 200320104420U CN 2660495 Y CN2660495 Y CN 2660495Y
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- lever
- wheel
- rope
- hammer
- sensing device
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Abstract
The utility model is a lever-type intelligent level sensing device. The structure is that one end of a rope is connected with a measuring hammer and the other end winds on a bull wheel bypassing a counting wheel. The counting wheel which is connected to an angle lever with a fixing part is equipped with a piece of magnetic steel. The angle lever is equipped with a sensor closing to a fixed plate equipped with a sensor. Compared with the prior art, the utility model has the advantages of simple mechanical structure, convenient manufacturing and wide application. Even if the weight of the on-site measuring hammer or the resistance of the rope changes, the utility model can work reliably without on-site adjustment. With a single chip microcomputer and automatic timing measuring, the material level can be displayed by on-site numbers and the data can be transmitted to the remote control room to be displayed, alarm and be controlled distantly.
Description
Technical field: the utility model is a kind of lever intelligence level-sensing device, relate to powdery, granular solids material position meter in the non-pressure vessel, be mainly used in the coal powder silo with level meter of the Pulverized Coal Bin of pulverized coal preparation system in the thermal power plant, also can be used for the measurement of other solids or liquid.
Technical background: the powder position of Pulverized Coal Bin is the normal important parameter that must monitor in service of thermal power plant, and the method for measuring the powder position at present is a lot, can be divided into by principle: pressure type level-sensing device, capacitance level meter, radioactivity level-sensing device, Plumb-bob Material Level Meter etc.; Pressure type level-sensing device requirement material is granular evenly, severe is constant, and can only be as the spacing measurement of fixed point; Capacitance level meter is subjected to the property effect of material bigger, and unstable properties when density, humidity, the temperature of the material Shi Douhui that changes influences measuring accuracy, even can't be worked; The radioactivity level-sensing device because radioactive ray are harmful, is handled by relevant regulations so its using dosage and installation, use, maintenance etc. are wanted strict, and complex structure, cost height; Plumb-bob Material Level Meter is a kind of under the dust serious environmental, the level-sensing device of energy reliably working.The traditional Plumb-bob Material Level Meter of power plant is a hand-rail type.Can under serious dust condition, work, but use inconvenient.Present automatic Plumb-bob Material Level Meter also has multiple, but has plenty of the forward and backward of controlling motor with reversing switch, spring, reversing switch the contact arranged, be not suitable at the many local works of dust, and inconvenience safeguards that spring needs often adjustment.The Plumb-bob Material Level Meter that has needs measuring fixed magnetic field iron or wire clips etc. on the rope, when making that measuring hammer rises to top dead centre, moves shutdown by magnet effect mistor or wire clips effect travel switch, need position at the scene.The level-sensing device that has has used pressure transducer, or uses CD and photovalve etc., and complex structure, cost height need field adjustable, is not easy to safeguard.
Summary of the invention: the purpose of this utility model is: a kind of lever intelligence level-sensing device is provided; It is a kind of contactless, do not need spring, the level-sensing device that can under mal-condition, work, its physical construction and simple, easy to make, wide accommodation is even the resistance of in-site measurement hammer weight or rope changes, do not need on-the-spot the adjustment substantially, just the energy reliably working yet;
The utility model is to constitute like this: an end of rope (2) connects measures hammer (1), the other end is walked around counter wheel (6) after walking around wheel (22) again, be wrapped on the bull wheel (5), bull wheel (5) connects reduction gear (4), reduction gear (4) connects motor (3), counter wheel (6) is provided with magnet steel (9), counter wheel (6) is with on the movable angular pole that is connected angular lever (7) (18) of fixture (17), on the angular pole (18) of angular lever (7) sensor (12) is installed, fixture (19) flexibly connects angular lever (7) and fixed head (15), the other end of angular lever (7) is equipped with magnet steel (16) and close fixed head (14), be fixed with sensor (10) and sensor (11) on the fixed head (14), one end of counterweight (13) is connected on the fixed head (14) with fixture (20) activity, counterweight (13) has hypotenuse (21), and the other end of counterweight (13) rides on the angular lever (7).
Compared with prior art: the utility model be a kind of contactless, do not need spring, the level-sensing device that can under mal-condition, work, its physical construction is extremely simple, easy to make, wide accommodation, even the resistance of in-site measurement hammer weight or rope changes, do not need on-the-spot the adjustment substantially, just the energy reliably working yet; Owing to use single-chip microcomputer, can measure by self-timing, field digital shows material level, data can teletransmission show, report to the police to the pulpit and control far away.Single-chip microcomputer has good protective effect, and to take off groove stuck just in case steel cable takes place, situations such as upper and lower dead center sensor damage; single-chip microcomputer all can accurately be judged; cut off the electricity supply, and send cue, measure hammer can mistakenly stop in uphill process just in case when being collapsed by material that the part buries down yet on the way.Principle of the present utility model is: removable mounting is at the counter wheel of lever one end, after the rope of connection measurement hammer is walked around counter wheel, be coiled in by on motor-operated bull wheel, rope drove the counter wheel rotation when motor rotated, and when dropping to the material surface and rising to the top, storehouse according to the measurement hammer, the tension force of rope can change, but counter wheel is translation again, make corresponding the moving of magnet steel of the lever other end, act on Hall element, deliver to the single-chip microcomputer Treatment Analysis, the demonstration of obtaining a result, and just change by the solid-state relay automatic control motor, counter-rotating or stall, the dihedral counterweight of particular design acts on lever, makes the magnet on the lever under the different operating modes of measuring hammer clear and definite location be arranged.
Description of drawings: accompanying drawing 1 is a Weight type intelligence level-sensing device structure principle chart of the present utility model, accompanying drawing 2 is Weight type intelligence level-sensing device vertical views of the present utility model, accompanying drawing 3 is to measure in the utility model course of work to hammer the operating mode synoptic diagram that drops on the material into shape, accompanying drawing 4 is to measure hammer in the utility model course of work to be in aerial operating mode synoptic diagram, and accompanying drawing 5 is to measure the operating mode synoptic diagram that hammer rises to Cang Ding in the utility model course of work.
Embodiment 1 of the present utility model: an end of wire rope (2) connects measures metal hammer (1), the other end is walked around counter wheel (6) after walking around two pulleys (22) again, be wrapped on the bull wheel (5), bull wheel (5) connection reducer (4), speed reduction unit (4) connects motor (3), counter wheel (6) is provided with 4 magnet steel (9), counter wheel (6) is with on the movable angular pole that is connected angular lever (7) (18) of bolt (17), on the angular pole (18) of angular lever (7) hall element sensor (12) is installed, bolt (19) flexibly connects angular lever (7) and fixed metal plate (15), the other end of angular lever (7) is equipped with 1 magnet steel (16) and close fixed metal plate (14), be fixed with hall element sensor (10) and hall element sensor (11) on the fixed metal plate (14), one jiao of being connected on the fixed metal plate (14) of trapeziform metal weights (13) with bolt (20) activity, counterweight (13) has hypotenuse (21), and the another side of counterweight (13) rides on the angular lever (7).
During work, motor (3) starts, drive bull wheel (5) through speed reduction unit (4), scrolling rope (2) moves upward or downward measurement hammer (1) in feed bin, counter wheel (6) is installed in the left end of lever (7), the tangent line of rope (2) on tangent line on the counter wheel (6) and bull wheel (5) be not on same vertical line, caused rope (2) to walk around counter wheel (6), its tension force makes rope (2) and counter wheel (6) be close to mutually, tension variation can act on counter wheel (6) and make it translation, the friction force of rope (2) can make counter wheel (6) rotate again, therefore counter wheel (6) produces two results: be rotated on the one hand, the magnet steel (10) by its side acts on Hall unit (12) and sends count pulse and count to single-chip microcomputer (8); Same hour-counting wheel (6) is measured hammer (1) diverse location in feed bin again at the tension force that constantly detects rope (2) in order to judge; When measurement hammer (1) drops on the material, the tension force of rope (2) reduces, lever (7) is under the action of gravity of self, right-hand member descends, magnet steel (16) rests on extreme lower position, acts on Hall unit (10) and sends signal, makes that motor stops to descend, and backward rotation, will measure on the hammer (1) and carry; When measurement hammer (1) rises to the top, storehouse, the tension force of rope (2) increases, counter wheel under the effect of tension force (6) moves to left, the right-hand member of lever (7) rises, magnet steel (16) acts on Hall unit (11) and sends signal, make that motor stops to rise, will measure hammer (1) and stop at top, powder storehouse, wait for and measure action next time; When measuring hammer (1) in the process of rising or decline, the pulling force that rope (2) is subjected to equals to measure the deadweight of hammer (1), the right-hand member of lever (7) upwards rises and rests on the centre position, and magnet steel (16) is not all had an effect in centre position and Hall unit (10), (11); Corresponding to above-mentioned three kinds of states, the power that is applied to lever (7) right-hand member must have three kinds of different sizes balance with it, and this will lean on the special shape of counterweight (13) to realize; When measurement hammer (1) dropped on the material, the tension force of rope (2) reduced, and lever (7) is under the action of gravity of self, and right-hand member descends, and magnet steel (16) rests on extreme lower position, acts on Hall unit (10) and sends signal; When measuring hammer (1) in the process of rising or decline, the pulling force that rope (2) is subjected to equals to measure the deadweight of hammer (1), the A point that the right-hand member of lever (7) promotes counterweight (13) upwards rises, after the B point that touches counterweight (13), the B point enlarges markedly the pressure of lever (7), at this moment counterweight (13) contacts with lever (7) with the AB straight line, and magnet steel (16) mediates, and does not all have an effect with Hall unit (10), (11); When measurement hammer (1) rises to the top, storehouse, the tension force of rope (2) increases, counter wheel under the effect of tension force (6) moves to left, lever (7) promotes counterweight (13) B point and rises, at this moment counterweight (13) with hypotenuse (21) promptly: the BC straight line contacts with lever (7), and magnet steel (16) acts on Hall unit (11) and sends signal, makes that motor stops to rise, to measure hammer (1) and stop at the feed bin top, and wait for and measure action next time; In course of action since counterweight (13) to three kinds of different acting forces of lever (7), make magnet steel (16) that three kinds of different positions be arranged, the accommodation of three kinds of different acting forces all design broad, make the variation of external condition be difficult for influencing operate as normal, magnet steel (16) action is clearly demarcated, realize accurately controlling, the lever intelligence level-sensing device that this kind is simple in structure is as long as debugging is qualified in factory, and need not debug substantially to on-the-spot installation just can operate as normal.
Claims (1)
1, a kind of lever intelligence level-sensing device, it is characterized in that: an end of rope (2) connects measures hammer (1), the other end is walked around counter wheel (6) after walking around wheel (22) again, be wrapped on the bull wheel (5), bull wheel (5) connects reduction gear (4), reduction gear (4) connects motor (3), counter wheel (6) is provided with magnet steel (9), counter wheel (6) is with on the movable angular pole that is connected angular lever (7) (18) of fixture (17), on the angular pole (18) of angular lever (7) sensor (12) is installed, fixture (19) flexibly connects angular lever (7) and fixed head (15), the other end of angular lever (7) is equipped with magnet steel (16) and close fixed head (14), be fixed with sensor (10) and sensor (11) on the fixed head (14), one end of counterweight (13) is connected on the fixed head (14) with fixture (20) activity, counterweight (13) has hypotenuse (21), and the other end of counterweight (13) rides on the angular lever (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320104420 CN2660495Y (en) | 2003-12-13 | 2003-12-13 | Lever type intelligence level-sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320104420 CN2660495Y (en) | 2003-12-13 | 2003-12-13 | Lever type intelligence level-sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2660495Y true CN2660495Y (en) | 2004-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320104420 Expired - Fee Related CN2660495Y (en) | 2003-12-13 | 2003-12-13 | Lever type intelligence level-sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2660495Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525559A (en) * | 2017-08-16 | 2017-12-29 | 北京市地质工程勘察院 | Water-level instrumentation |
| CN111397499A (en) * | 2020-03-03 | 2020-07-10 | 建德市五星车业有限公司 | Displacement detection device, wheel hub and riding vehicle |
-
2003
- 2003-12-13 CN CN 200320104420 patent/CN2660495Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525559A (en) * | 2017-08-16 | 2017-12-29 | 北京市地质工程勘察院 | Water-level instrumentation |
| CN111397499A (en) * | 2020-03-03 | 2020-07-10 | 建德市五星车业有限公司 | Displacement detection device, wheel hub and riding vehicle |
| CN111397499B (en) * | 2020-03-03 | 2021-08-27 | 建德市五星车业有限公司 | Displacement detection device, wheel hub and riding vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |