CN1032076A - Balance type measuring steelyard - Google Patents
Balance type measuring steelyard Download PDFInfo
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- CN1032076A CN1032076A CN 88106406 CN88106406A CN1032076A CN 1032076 A CN1032076 A CN 1032076A CN 88106406 CN88106406 CN 88106406 CN 88106406 A CN88106406 A CN 88106406A CN 1032076 A CN1032076 A CN 1032076A
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- lever
- fulcrum
- motorized pulleys
- wheel rim
- cross reed
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Abstract
The present invention is a kind of balance type measuring steelyard that lump material, granular material or granular material is carried out continuous measurement.Be adapted to the material metering of cement and metallurgy industry especially.The weighing part of utilizing S shape hopper, wheel rim, spoke and gearing to form, the fulcrum that is constituted by the cross reed is fixed on the left end of scale body, and the centre is a supporter, and right-hand member is a sensor, makes whole scale form a kind of structure of balance-type type.This weigher has simple in structure, and cost is low, and the precision height is low in energy consumption, continuous measurement, and totally-enclosed free from dust not only can be measured bulk, and graininess and granular material can also measure＜500 ℃ high-temperature material.
Description
The present invention relates to and a kind of block, graininess or granular material are carried out the device of continuous measurement, be adapted to the material metering of cement and metallurgy industry especially.
In industries such as cement and metallurgy, accurate metering outfit is one of essential condition that guarantees product quality, particularly in cement industry, have only accurately proportioning just can produce high-quality cement, so, seek a kind of measuring accuracy height, good reliability and equipment that can continuous measurement are one of industries such as cement, metallurgy problems anxious to be solved.
In the production run of industries such as cement and metallurgy, need measure respectively the material of several different components with guarantee these materials mix in proportion implement metering device weigher, present common have belt conveyer scale, impulse flow meter and blk weigher etc.These several measuring apparatus all exist some defective in actual use.Such as belt conveyer scale, owing to structural reason, when the weight of material of unit length is unequal on the even or belt when belt uneven distribution own, can make the zero migration of scale, cause error.The impulse flow meter structure is complicated, and the change in location in the humidity of material, fineness and material setting point all can cause bigger error in dipping.The blk weigher measuring accuracy is low, can not continuous measurement.The measuring accuracy of above-described metering outfit can only guarantee about ± 2%.
US-4114708 discloses a kind of measuring apparatus of continous way, its structure is to make supporter with the level table that a stainless steel substrates is made, in order to the material on the support belt, one column weight transmitting device is arranged at the table top bottom, weight of material on the table top is passed to the sensor of bottom by converyer, when material being arranged on the conveying belt on the table top and moves with certain speed, the weight of material will cause the distortion of table top and give sensor with weight transmitting, so just can carry out the continuous measurement of material.But, because the coupling part of table top is a rigidity, so small weight change can not make the table top distortion, so its measuring accuracy is lower.Moreover because conveying belt contacts with table top, when conveying belt moved, the effect owing to friction force can make table top be subjected to a horizontal component consistent with belt direction; The size of friction force is directly proportional with material on the conveying belt, so when the weight of material of carrying changed, horizontal component also changing, will cause error in dipping like this.In a word, the precision of this measuring apparatus is not high.
JP56-27619(A) announced a kind of circular flow measurement device.Its primary structure is to be provided with some vertical blades in the cylinder of the coaxial rotation of a level, blade contacts with barrel and is rotatable, material enters charging aperture at an end of horizontal supporting axle, rotation by blade is scraped the transverse axis discharging opening of end in addition continuously, utilize a sensor to measure the weight fluctuation of its material, promptly know the variation of mass flow.But this Design of device prerequisite is: the center of gravity of supposing material is changeless, but the thickness of material is changing when carrying, so its center of gravity also can be swung on the position of supposition, will cause error in dipping like this, in addition, the abrasion of vertical vane also can cause bigger error.So this device neither a kind of very desirable metering outfit.
It is a kind of simple in structure that purpose of the present invention just is to provide, the measuring accuracy height, and power consumption is low, the continous way measuring apparatus of good reliability.
According to the principle that balance is weighed, utilize a kind of special structure, weight of material is stably concentrated on any of lever, utilize lever principle to measure the weight of this point then, this is the starting point of design proposal of the present invention.
Now the structure description of the weigher that the present invention is proposed is as follows: a force transferring lever 15 is arranged, cross reed fulcrum 9 and 14 two fulcrums of cross reed fulcrum are arranged on this lever; Fulcrum 14 is arranged on the middle part of lever, and on Zhi Zaiyi the supporter 13, lever is supported by supporter 13; One end of force transferring lever is provided with heavy thallium 16, and has a sensor 18 to contact with lever; Cross reed fulcrum 9 is arranged on the other end of lever, and fulcrum 9 is supporting motorized pulleys 11 by bearing seat 12 and central shaft, and motorized pulleys are connecting the carrying device of a carrying material, and this device rotates with motorized pulleys.Carrying device is adorned material continuously from charging aperture 3, rotates under the drive of motorized pulleys, discharges when material turns to feed opening 10.
When motorized pulleys rotate with constant speed and carrying device on when material is arranged, when material was transported, the total weight of material all acted on the central shaft of motorized pulleys on the carrying device, acted on the cross reed fulcrum 9 on the force transferring lever by central shaft.The sensor 18 that this moment, lever was held in addition just has a weight signal output, the purpose of this signal being calculated and being added up just can reach continuous measurement.Since on the carrying device arbitrarily the weight of material of any can only act on force transferring lever 15 by cross reed fulcrum 9, and since lever by 14 at cross reed fulcrum on supporter 13, so weigher can reach very high precision.
Below in conjunction with accompanying drawing the present invention is specifically described:
Accompanying drawing 1 is the one-piece construction figure of the embodiment of the invention.
Accompanying drawing 2 is the structural representation of the carrying device of the embodiment of the invention.
Accompanying drawing 3 is the cross reed fulcrum structure figure of the embodiment of the invention.
Accompanying drawing 4 is the flow curve analysis chart of the embodiment of the invention.
As shown in Figure 1, above-mentioned carrying device specifically can be provided with like this, and motorized pulleys 11 are connecting the diameter wheel rim 8 big than motorized pulleys 11 by spoke 7, equidistantly distribute a plurality of hoppers 6 on the wheel rim 8; Ginseng Fig. 2 spills to both sides in order to prevent material, is provided with backplate 5 in the both sides of hopper 6, and backplate 5 is fixed on the wheel rim 8; Ginseng Fig. 3, motorized pulleys 11 are contained on the bearing seat 12, and bearing seat 12 is fixed on the left end of the force transferring lever 15 of scale body by fixed cross reed 9.Join Fig. 1 again, like this, carrying device has just constituted weighing part with motorized pulleys 11; Because the drive of motorized pulleys 11, the carrying part can be rotated along clockwise, counterclockwise direction.Again because the weight of whole weighing part is to affact above the force transferring lever 15 of scale frame by cross reed 9 this point, so more any quality of whole weighing part, can act on cross reed 9 on this point of fulcrum, claim the force transferring lever 15 of frame to be fixed on the supporter 13 by supporting cross reed 14 again, ginseng Fig. 3, supporter 13 work to support whole scale body.Join Fig. 1 again, the left end of force transferring lever 15 is provided with heavy thallium 16, is used for keeping two ends, scale body left and right sides balance; Sensor 18 is the weight change that are used for detecting the weighing part material.Like this, the structure of whole scale has very high sensitivity as a balance.
When material enters in the S shape hopper 6 that rotates with constant speed along clockwise direction by the charging aperture 3 that is arranged on the dust cover 4 through electrovibrating feeder 1, along with material constantly enters in the S shape hopper, the weight of material of weighing part will act on this point of cross reed 9, be arranged on and just have signal on the sensor 18 of right-hand member and export continuously, the size of its output signal is to be directly proportional with the weight of material of left end weighing part, this signal is delivered in the calculation control instrument 17, just can calculate the flow of material in the unit interval, draw off by discharge port 10 through the material that measures.
Adopt weigher of the present invention how to reach the purpose of continuous measurement, do one below and describe in detail.
Suppose:
(1) ginseng Fig. 1 is evenly distributed with 24 S shape hoppers 6 on the wheel rim 8, and so, whole circumference just is divided into 24 lattice, and the pairing central angle of every lattice is 15 °.
(2) S shape hoppers 6 finish and finish the spacing that a discharging cycle need take 4 hoppers from being dumped into the beginning discharging, are 4 * 15 °=60 ° with central angle promptly.
(3) ginseng is shown in Figure 4, and a S shape hopper 6 is in the discharging cycle, and the discharging curve that discharging amount and corner constitute is a right angled isosceles triangle, is referred to as the discharging triangle, and its shape is seen the △ ABC among the figure.
(4) under the dosing situation, the weight of material on each S shape hopper 6 equates that the discharging triangle area that each S shape hopper 6 is surrounded all is the same with shape.
BD two vertical lines in the accompanying drawing 4 are in respectively on 30 ° and 45 ° of the corners, and also just equaling S shape hopper, to finish 1/4 of a shared central angle of discharging cycle be 15 °.From BD two between perpendiculars areas as can be seen, in this interval, have four leg-of-mutton parts of discharging overlapping at this respectively, its overlapping area equals the area of a discharging triangle △ ABC.
On the interval that EF two vertical lines surround, there are six leg-of-mutton parts of discharging overlapping at this, its area also equals a leg-of-mutton area of discharging.
According to above analysis as can be known, when the inventory on each S shape hopper equates, moving 15 ° of S shape hopper 6 revolutions, the weight of material sum that draws off from the adjacent several S shape hoppers 6 that are in the discharging cycle equates with the weight of material on the S shape hopper 6.Therefore, whole discharge process is a continous-stable.In like manner as can be known, no matter what hoppers are arranged, when the weight of material on each hopper changed fluctuation, the variation of its discharging amount also was corresponding with it on the wheel rim 8; Respectively these fluctuation variations or stable inventory are come out with sensor, just can reach the purpose of continuous measurement.
According to the heterogeneity of material, hopper 6 also can be V-arrangement, U-shaped or other shape, so not only can measure granular material, also can measure granular material and lump material.
According to different situations, supporter 13 can be at the left end of scale frame, and the cross reed fulcrum 9 of weighing part is heavily cut or polish jade with an emery wheel 16 left ends that also moved at supporter 13 at the middle part of scale frame.The scale of this structure can use in some special occasions.
Adopt balance type measuring steelyard of the present invention to have following advantage: (1) sends vermachen border swimming smile punishment soot strand to fall to admire loess hills stalk Wei group splendid achnatherum strip yarn .2%, compare with existing measuring equipment, can improve 5～10 times. (2) frame for movement is simple, volume is little, cost is low, and the mechanical part power consumption is few, is 1/2～1/4 of existing belted electronic balance. (3) can measure lump material, granular material and granular material simultaneously. (4) the circumference utilization rate of scale can reach more than 90%, exceeds more than 40% than belted electronic balance. (5) high-temperature material of 500 ℃ of measurable ∠, it has solved the measurement problem of high-temperature material in the industries such as cement, metallurgy. (6) there is not the change in physical because of material in this scale, or moving of blanking point and the error in dipping that causes during use, only needs to demarcate once, can use for a long time, has reduced because repeating to demarcate the consumption of the human and material resources that cause. (7) good sealing effect does not have secondary pollution to environment, and practicable hermetically sealed operation especially is adapted to the metering of the big material of dust.
Claims (3)
1, a kind of balance type measuring steelyard, it is characterized in that, a force transferring lever 15 is arranged, cross reed fulcrum 9 and 14 two fulcrums of cross reed fulcrum on this lever, fulcrum 14 is arranged on the middle part of lever, on Zhi Zaiyi the supporter 13, lever is promptly supported by supporter 13 by fulcrum 14, one end of force transferring lever is provided with heavy thallium 16, and have a sensor 18 to contact with lever, cross reed fulcrum 9 is arranged on the other end of lever, and fulcrum 9 is supporting motorized pulleys 11 by bearing seat 12 and central shaft, motorized pulleys connect the carrying device of a carrying material, and this device rotates with motorized pulleys.
2, press claim 1 described weigher, it is characterized in that described carrying device is to be provided with like this: motorized pulleys 11 are connecting the diameter wheel rim 8 big than cylinder 11 by spoke 7, a plurality of hoppers 6 that distribute on the wheel rim equidistantly, there is backplate 5 both sides of hopper; Wheel rim is outside equipped with a dust cover 4, and dust cover is provided with charging aperture 3 and discharging opening 10.
3, press claim 2 described weighers, it is characterized in that: described hopper 6 can be a S shape, V-arrangement or U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88106406 CN1014825B (en) | 1988-08-30 | 1988-08-30 | Balance type measuring steelyard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88106406 CN1014825B (en) | 1988-08-30 | 1988-08-30 | Balance type measuring steelyard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1032076A true CN1032076A (en) | 1989-03-29 |
| CN1014825B CN1014825B (en) | 1991-11-20 |
Family
ID=4834225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88106406 Expired CN1014825B (en) | 1988-08-30 | 1988-08-30 | Balance type measuring steelyard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1014825B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839754A (en) * | 2010-04-29 | 2010-09-22 | 宝斯卡(商丘)化工有限公司 | Method for weighing material in rotary drum on line in real time in leather processing process |
| CN101726401B (en) * | 2009-12-09 | 2011-10-26 | 中国航空工业第一集团公司沈阳空气动力研究所 | Scale measuring device for pitching dynamic derivative experiment |
| CN103234615A (en) * | 2013-05-02 | 2013-08-07 | 太原市海通自动化技术有限公司 | Feeding measuring method for feeding machine and feeding system |
| CN104101416A (en) * | 2014-08-05 | 2014-10-15 | 胡达广 | Balance free of weights |
| CN105241534A (en) * | 2015-09-29 | 2016-01-13 | 洛阳理工学院 | Alloy raw material automatic weight measuring apparatus |
| CN108088537A (en) * | 2017-11-15 | 2018-05-29 | 安徽省恒伟铋业有限公司 | A kind of pulp pond metering device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043221C (en) * | 1994-05-16 | 1999-05-05 | 天津大学 | Mullite base ceramic material and preparing process thereof |
-
1988
- 1988-08-30 CN CN 88106406 patent/CN1014825B/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101726401B (en) * | 2009-12-09 | 2011-10-26 | 中国航空工业第一集团公司沈阳空气动力研究所 | Scale measuring device for pitching dynamic derivative experiment |
| CN101839754A (en) * | 2010-04-29 | 2010-09-22 | 宝斯卡(商丘)化工有限公司 | Method for weighing material in rotary drum on line in real time in leather processing process |
| CN103234615A (en) * | 2013-05-02 | 2013-08-07 | 太原市海通自动化技术有限公司 | Feeding measuring method for feeding machine and feeding system |
| CN104101416A (en) * | 2014-08-05 | 2014-10-15 | 胡达广 | Balance free of weights |
| CN104101416B (en) * | 2014-08-05 | 2016-04-13 | 卢碧娴 | Without the balance of weights |
| CN105241534A (en) * | 2015-09-29 | 2016-01-13 | 洛阳理工学院 | Alloy raw material automatic weight measuring apparatus |
| CN105241534B (en) * | 2015-09-29 | 2017-10-27 | 洛阳理工学院 | A kind of alloy raw material automatic weight measuring device |
| CN108088537A (en) * | 2017-11-15 | 2018-05-29 | 安徽省恒伟铋业有限公司 | A kind of pulp pond metering device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1014825B (en) | 1991-11-20 |
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