CN103954345B - A kind of measuring belt scale ball code calibration steps - Google Patents
A kind of measuring belt scale ball code calibration steps Download PDFInfo
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- CN103954345B CN103954345B CN201410149917.8A CN201410149917A CN103954345B CN 103954345 B CN103954345 B CN 103954345B CN 201410149917 A CN201410149917 A CN 201410149917A CN 103954345 B CN103954345 B CN 103954345B
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Abstract
The invention provides a kind of measuring belt scale ball code calibration steps, mainly comprise the steps: that belt section that each 2-4 group transition carrier roller before and after belt conveyer scale weighing section and weighing section forms by (1) is as ball code calibration segment, arranges the baffle plate paralleled with belt in the both sides of ball code calibration segment; The roller rack of each weighing carrying roller in ball code calibration segment and two transition carrier rollers at transition carrier roller and ball code calibration segment two ends installs a movable flashboard respectively along carrying roller axis direction; (2) make the spheroidal ball code of some standard qualities, put into the ball code of equivalent in the lattice formed between adjacent two flashboards and baffle plate gear respectively, by the formulae discovery relative error of setting; (3) according to the relative error calculated, measuring belt scale is calibrated.Present invention achieves any range section calibration of belt conveyer scale, and calibration accuracy of the present invention is high, and influence factor is little, can substitute actual material calibration completely.
Description
Technical field
The invention belongs to weigher collimation technique field, relate to a kind of measuring belt scale ball code calibration steps.
Background technology
The calibration of current domestic measuring belt scale mainly contains captive chain calibration, link code calibration, circulating chain code calibration and several mode of actual material calibration.Actual material calibration is the most a kind of mode in said method, but affects calibration accuracy many factors and can not timely and effectively perform due to its tissue difficulty, calibration process link, cannot meet the job requirement of measuring belt scale actual alignment.Other three kinds of calibrating modes (calibration of captive chain calibration, link code, circulating chain code) cannot carry out the calibration of gamut section multiple spot, namely the calibration with weight points such as configured link code, chain code weight can only be carried out, whether other range of weighing in range ability is accurate, then do not have reliably easy detection means.In addition, these three kinds of calibrating modes (calibration of captive chain calibration, link code, circulating chain code) cannot substitute actual material calibration mode in calibration accuracy.
Summary of the invention
The object of the invention is to for prior art Problems existing, provide a kind of and realize the calibration of any range of belt conveyer scale section and the high measuring belt scale ball code calibration steps of calibration accuracy.
For this reason, the present invention adopts following technical scheme:
(1) the belt section formed by 2-4 group transition carrier roller each before and after belt conveyer scale weighing section and weighing section, as ball code calibration segment, arranges the baffle plate paralleled with belt in the both sides of ball code calibration segment; The roller rack of each weighing carrying roller in ball code calibration segment and two transition carrier rollers at transition carrier roller and ball code calibration segment two ends installs a movable flashboard respectively along carrying roller axis direction, and when ball code is calibrated, flashboard is put down, fix with removable pin above after calibration, flashboard being turned to;
(2) make the spheroidal ball code of some standard qualities, in the lattice formed between adjacent two flashboards and baffle plate gear, put into the ball code of equivalent respectively; If belt conveyer scale weighing section length is L, on weighing section, the gross mass of ball code is M, then the normal loading P=M/L of now weighing section; Belt conveyer scale after operation integer circle, the theory weighing value Q=P*v*T*N of belt conveyer scale,
In above formula, L-weighing section length (rice), ball code gross mass (kilogram) on M-weighing section, P-weighing section normal loading (kg/m), Q-belt conveyer scale runs the theory weighing value (ton) after N circle, v-belt speed (meter per second), the time (second) that T-belt claims operation one to enclose, N-belt claims to run the number of turns;
Then relative error E=(Q1-Q)/Q*100%, in formula, E-relative error, Q1-belt conveyer scale runs the display total weight value (ton) after N circle, and Q-belt conveyer scale runs the theory weighing value (ton) after N circle;
(3) according to the relative error calculated, measuring belt scale is calibrated.
Further, in step (2), choose the flow upper limit of belt conveyer scale routine work, flux lower limit and the intermediate point between the flow upper limit and lower limit respectively as three range sections of calibrating, calibrate respectively; During calibration, for different range section, measuring belt scale is placed theoretical delivery value S-phase respectively when the ball code in calibration range section, and calculate the relative error of different range section respectively, then according to the relative error calculated, each range section is calibrated respectively; Wherein, theoretical delivery value S=P*v*1h, in formula, S-theoretical delivery value (ton/hour), P-weighing section normal loading (kg/m), v-belt speed (meter per second).
Further, in step (2), in each range section calibration process, repeatedly calibrate respectively, until each time calibration relative error be no more than ± 1.00%.
In calibration steps of the present invention, belt conveyer scale is in operation process, due to the restriction of flashboard and baffle plate, ball code rests on all the time in ball code calibration segment and also constantly rolls in situ, and the ball code quality in the lattice gear formed between adjacent two flashboards and baffle plate is certain all the time, thus the load in ball code calibration segment is uniformity in belt conveyer scale operational process.Calibrate a certain range section of belt conveyer scale, as long as put into the ball code corresponding to this range section flow.Thus achieve any range section calibration of belt conveyer scale, and calibration accuracy of the present invention is high, can substitute actual material calibration completely.
To sum up, beneficial effect of the present invention is: achieve any range section calibration of belt conveyer scale, and calibration accuracy of the present invention is high, and influence factor is little, can substitute actual material calibration completely; In addition, the inventive method is simple and easy to perform, and method is flexible.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention belt conveyer scale ball code calibration segment stepping schematic diagram.
Fig. 2 is the scheme of installation of embodiment of the present invention flashboard and baffle plate.
In figure, 1-belt, 2-roller rack, 3-baffle plate, the movable flashboard of 4-, 5-weighs carrying roller, 6-transition carrier roller.
Embodiment
Now weigh carrying roller for a double lever four, full scale be 1500t/h, error be ± 1.00% measuring belt scale (flat belt installation) be introduced:
(1) as shown in Figure 1, four are weighed the belt section of each two transition carrier roller 6 correspondences before and after carrying roller 5 and weighing carrying roller 5 as ball code calibration segment, wherein, four belt sections weighing carrying roller 5 correspondences are belt conveyer scale weighing section; As shown in Figure 2, the baffle plate 3 paralleled with belt 1 is set in the both sides of ball code calibration segment, the roller rack 2 of each weighing carrying roller in ball code calibration segment and two transition carrier rollers at transition carrier roller and ball code calibration segment two ends installs a movable flashboard 4 respectively along carrying roller axis direction, during the calibration of ball code, movable flashboard 4 is put down, also fix by removable pin (not shown) above after calibration, movable flashboard 4 being turned to;
(2) make the spheroidal ball code of some standard qualities, in the lattice gear formed between adjacent two movable flashboards 4 and baffle plate 3, put into the equal ball code of quantity respectively; In the present embodiment, ball code by single quality be 14kg, diameter is that the hollow steel ball of 250mm is formed; By ball code calibration segment with the axis weighing carrying roller 5 and transition carrier roller 6 for boundary is divided into 9 gears as shown in Figure 1, the length of each gear is respectively L1 ~ L9, and the ball code quality on each gear is respectively M1 ~ M9, if weighing section length is L, on weighing section, the gross mass of ball code is M, then
L=（L3+L7)/2+L4+L5+L6
M=(M3+M7)/2+M4+M5+M6
Now weigh the normal loading P=M/L in length; Belt conveyer scale after operation integer circle, the theory weighing value Q=P*v*T*N of belt conveyer scale,
In above formula, L-weighing section length (rice), ball code gross mass (kilogram) on M-weighing section, P-weighs length standard load (kg/m), Q-belt conveyer scale runs the theory weighing value (ton) after N circle, v-belt speed (meter per second), the time (second) that T-belt claims operation one to enclose, N-belt claims to run the number of turns;
Relative error E=(Q1-Q then after belt conveyer scale operation N circle)/Q*100%, in formula, E-relative error, Q1-belt conveyer scale runs the display total weight value (ton) after N circle, the theory weighing value (ton) after Q-belt conveyer scale operation N encloses; With in above formula, N round numbers;
(3) generally choose three range sections during the daily calibration of belt conveyer scale and carry out practical requirement, the i.e. flow upper limit of belt conveyer scale routine work, flux lower limit and the intermediate point between the flow upper limit and lower limit, 20%, 50%, 80% 3 range section that the present embodiment chooses full scale is calibrated.In belt calibration segment, place the ball code that theoretical delivery value is equivalent to belt conveyer scale full scale 20%, 50%, 80% respectively, and calculate the relative error of three range sections respectively, then according to the relative error calculated, each range section is calibrated respectively.When more than calculating, theoretical delivery value S=P*v*1h, in formula, S-theoretical delivery value (ton/hour), P-weighing section normal loading (kg/m), v-belt speed (meter per second).
In addition, in each range section calibration process, carry out respectively three times calibration, until each time calibrate relative error be no more than ± 1.00%.
Claims (3)
1. a measuring belt scale ball code calibration steps, is characterized in that, comprise the steps:
(1) the belt section formed by 2-4 group transition carrier roller each before and after belt conveyer scale weighing section and weighing section, as ball code calibration segment, arranges the baffle plate paralleled with belt in the both sides of ball code calibration segment; The roller rack of each weighing carrying roller in ball code calibration segment and two transition carrier rollers at transition carrier roller and ball code calibration segment two ends installs a movable flashboard respectively along carrying roller axis direction, and when ball code is calibrated, flashboard is put down, fix with removable pin above after calibration, flashboard being turned to;
(2) make the spheroidal ball code of some standard qualities, in the lattice formed between adjacent two flashboards and baffle plate gear, put into the ball code of equivalent respectively; If belt conveyer scale weighing section length is L, on weighing section, the gross mass of ball code is M, then the normal loading P=M/L of now weighing section; Belt conveyer scale after operation integer circle, the theory weighing value Q=P*v*T*N of belt conveyer scale,
In above formula, L-weighing section length (rice), ball code gross mass (kilogram) on M-weighing section, P-weighing section normal loading (kg/m), Q-belt conveyer scale runs the theory weighing value (ton) after N circle, v-belt speed (meter per second), the time (second) that T-belt claims operation one to enclose, N-belt claims to run the number of turns;
Then relative error E=(Q1-Q)/Q*100%, in formula, E-relative error, Q1-belt conveyer scale runs the display total weight value (ton) after N circle, and Q-belt conveyer scale runs the theory weighing value (ton) after N circle;
(3) according to the relative error calculated, measuring belt scale is calibrated.
2. a kind of measuring belt scale ball code calibration steps according to claim 1, it is characterized in that, in step (2), choose the flow upper limit of belt conveyer scale routine work, flux lower limit and the intermediate point between the flow upper limit and lower limit respectively as three range sections of calibrating, calibrate respectively; During calibration, for different range section, measuring belt scale is placed theoretical delivery value S-phase respectively when the ball code in calibration range section, and calculate the relative error of different range section respectively, then according to the relative error calculated, each range section is calibrated respectively; Wherein, theoretical delivery value S=P*v, in formula, S-theoretical delivery value (ton/hour), P-weighing section normal loading (kg/m), v-belt speed (meter per second).
3. a kind of measuring belt scale ball code calibration steps according to claim 2, is characterized in that, in step (2), in each range section calibration process, repeatedly calibrate respectively, until each time calibration relative error be no more than ± 1.00%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410149917.8A CN103954345B (en) | 2014-04-15 | 2014-04-15 | A kind of measuring belt scale ball code calibration steps |
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| CN201410149917.8A CN103954345B (en) | 2014-04-15 | 2014-04-15 | A kind of measuring belt scale ball code calibration steps |
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| CN103954345B true CN103954345B (en) | 2016-01-13 |
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| CN111829639B (en) * | 2019-04-15 | 2022-04-12 | 北京万集科技股份有限公司 | Calibration method of combined truck scale |
| CN110907025A (en) * | 2019-11-11 | 2020-03-24 | 神华粤电珠海港煤炭码头有限责任公司 | Novel material object checking device and system thereof |
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| CN1033103A (en) * | 1988-05-14 | 1989-05-24 | 白银有色金属公司 | Belted electronic balance method of calibration and checker |
| US5686653A (en) * | 1996-05-09 | 1997-11-11 | General Signal Corporation | System for checking the calibration of gravimetric feeders and belt scales |
| CN101464185A (en) * | 2009-01-14 | 2009-06-24 | 徐州市三原技术产业有限公司 | Dynamic on-line calibration method and system for electronic belt scale |
| KR20100111474A (en) * | 2009-04-07 | 2010-10-15 | 엄우종 | Scale conveyor apparatus |
| CN201993154U (en) * | 2010-11-17 | 2011-09-28 | 营口大和制衡产业有限公司 | Self-checking electronic belt conveyor scale |
| CN202393473U (en) * | 2011-11-21 | 2012-08-22 | 济南钢铁股份有限公司 | Segmented variable speed electronic belt conveyor scale |
-
2014
- 2014-04-15 CN CN201410149917.8A patent/CN103954345B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033103A (en) * | 1988-05-14 | 1989-05-24 | 白银有色金属公司 | Belted electronic balance method of calibration and checker |
| US5686653A (en) * | 1996-05-09 | 1997-11-11 | General Signal Corporation | System for checking the calibration of gravimetric feeders and belt scales |
| CN101464185A (en) * | 2009-01-14 | 2009-06-24 | 徐州市三原技术产业有限公司 | Dynamic on-line calibration method and system for electronic belt scale |
| KR20100111474A (en) * | 2009-04-07 | 2010-10-15 | 엄우종 | Scale conveyor apparatus |
| CN201993154U (en) * | 2010-11-17 | 2011-09-28 | 营口大和制衡产业有限公司 | Self-checking electronic belt conveyor scale |
| CN202393473U (en) * | 2011-11-21 | 2012-08-22 | 济南钢铁股份有限公司 | Segmented variable speed electronic belt conveyor scale |
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