CN202393473U - Segmented variable speed electronic belt conveyor scale - Google Patents
Segmented variable speed electronic belt conveyor scale Download PDFInfo
- Publication number
- CN202393473U CN202393473U CN2011204625850U CN201120462585U CN202393473U CN 202393473 U CN202393473 U CN 202393473U CN 2011204625850 U CN2011204625850 U CN 2011204625850U CN 201120462585 U CN201120462585 U CN 201120462585U CN 202393473 U CN202393473 U CN 202393473U
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- Prior art keywords
- belt
- scale
- dragging motor
- sensor
- electronic balance
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Abstract
The utility model relates to a segmented variable speed electronic belt conveyor scale which includes a scale frame (1), a belt dragging motor (6), and a conveying belt (7). The conveying belt and the belt dragging motor are arranged on the scale frame. The belt dragging motor drives the conveying belt. The segmented variable speed electronic belt conveyor scale also includes a weighting sensor (2), a speed sensor (3), an electronic belt scale host (4), and a frequency converter (5). The segmented variable speed electronic belt conveyor scale guarantees the relative uniform material shape of a material on the conveying belt. The material load capacity is from 30% to 60% of an effective measuring range of the sensor. The detection fiducial error of the sensor is small. Because the verification is carried out on different measuring range segments, the belt tension force change caused by the speed change can not influence the fiducial error. Compared with the prior art, the measuring scope is enlarged by 5 to 8 times under the condition that the fiducial error satisfies the measuring requirement. The technical problem is solved, and the technical target is realized.
Description
Technical field
The utility model relates to a kind of belted electronic balance, and especially a kind of segmentation speed change belted electronic balance is applicable to the solid material that big, actual maximum flow of measures range and minimum flow differ greatly, and requires the belted electronic balance of the little application scenario of error in dipping.
Background technology
Be applied to the conditional electronic belt conveyer scale of proportioning processes such as metallurgy, chemical industry, cement, generally adopt constant-speed operation, promptly the travelling speed of belt is constant; There is bigger measurement dead band in this belted electronic balance, and its valid analysing range is narrower, under the less situation of mass flow especially to be detected; The metering fiducial error is bigger; Especially when needs measured the solid material of different flow scope and different densities with a belted electronic balance, because the range of belt travelling speed and LOAD CELLS is fixed, it drew error relevant with metered flow; Fiducial error during the large capacity meter amount is little, and the fiducial error of low discharge metering is big.If select very fast belt travelling speed and wide range LOAD CELLS, can satisfy the needs of large capacity meter amount, its fiducial error can not satisfy measuring requirement when low discharge; If select slow belt travelling speed and a small amount of range load cell, its fiducial error is little, but the flow range is little, can't realize the requirement of large capacity meter amount.In order to address this problem, used to be the different belt conveyer scale of material metering configuration of different flow scope, equipment such as feed bin, travelling belt all will increase, complex process equipment, equipment investment is big.Also having a solution is to adopt belt speed continuous speed adjustment mode; Belt speed is by Frequency Converter Control; According to the variation of present flow rate output frequency at a continuum control of conversion device, the material load substantially constant on the belt weighing section, flow and belt speed linear dependence; But, cause measuring fiducial error and receive the influence of belt tension bigger because belt tension is altered a great deal by the influence of belt travelling speed.Therefore must develop and a kind ofly be used for big, the actual maximum flow of measures range and minimum flow differs bigger solid material, and require the belted electronic balance of the little application scenario of fiducial error.
The utility model content
The purpose of the utility model mainly provides a kind of solid material that big, the actual maximum flow of measures range and minimum flow differ greatly that is used for; And require the belted electronic balance of the little application scenario of fiducial error, promptly a kind of flow range is big and can both guarantee the belted electronic balance of less fiducial error in the different flow section.
The technical scheme that its technical matters of the utility model solution is taked is: a kind of segmentation speed change belted electronic balance; Comprise scale frame (1), belt dragging motor (6) and travelling belt (7); Said travelling belt and belt dragging motor are installed on the scale frame; Said belt dragging motor drives the travelling belt motion; It is characterized in that: also comprise weighing sensor (2), tachogenerator (3), belted electronic balance main frame (4) and frequency converter (5), said belt dragging motor uses variable-frequency motor, and frequency converter and variable-frequency motor are electrically connected; Be equipped with weighing-up wave interface (8), rate signal interface (9) and speed control interface (10) in the said belted electronic balance main frame (4); Said LOAD CELLS and tachogenerator are installed in the inboard of belt conveyor; Said re-transmission sensor is electrically connected to the weighing-up wave interface; Said tachogenerator is electrically connected to the rate signal interface, and said speed control interface is electrically connected to frequency converter.
The beneficial effect of the utility model is: because travelling belt adopts the segmentation mode of speed regulation; When mass flow is in different range section; Travelling belt speed is different; Guaranteed that the material material type on the travelling belt is even relatively, the material load is between the 30%-60% of sensor useful range, and the fiducial error of sensor is little; Because in the verification respectively of different range sections, overcome the belt tension that velocity variations causes and changed influence error in dipping.Therefore the utility model is compared with prior art guaranteeing that fiducial error satisfies under the condition of measuring requirement, and measures range has enlarged 5-8 doubly, has solved technical matters, has realized technical purpose.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Among the figure: 1 scale frame, 2 weighing sensors, 3 tachogenerators, 4 belted electronic balance main frames, 5 frequency converters, 6 belt dragging motors, 7 travelling belts, 8 weighing-up wave interfaces, 9 rate signal interfaces, 10 speed control interfaces.
Embodiment
It is as shown in Figure 1,
A kind of segmentation speed change belted electronic balance; Comprise scale frame 1, belt dragging motor 6 and travelling belt 7; Said travelling belt and belt dragging motor are installed on the scale frame, and said belt dragging motor drives the travelling belt motion, also comprises weighing sensor 2, tachogenerator 3, belted electronic balance main frame 4 and frequency converter 5; Said belt dragging motor uses variable-frequency motor, and frequency converter and variable-frequency motor are electrically connected; Be equipped with weighing-up wave interface 8, rate signal interface 9 and speed control interface 10 in the said belted electronic balance main frame 4; Said LOAD CELLS and tachogenerator are installed in the inboard of belt conveyor; Said re-transmission sensor is electrically connected to the weighing-up wave interface; Said tachogenerator is electrically connected to the rate signal interface, and said speed control interface is electrically connected to frequency converter.
Belted electronic balance main frame 4 sends segmentation through speed control interface 10 with the form of one a group of switching value signal or an analog signals and instructs frequency converter 5; Control belt dragging motor 6 drags travelling belt 7 and moves by default speed; When material passes through the weighing section of belt conveyer scale; LOAD CELLS 2 receives the weight loading of material; And will be transferred to the weighing-up wave interface 8 of belted electronic balance main frame 4 with the electric signal of load linear dependence; Tachogenerator 3 detects the travelling speed of travelling belt and will be transferred to the rate signal interface 9 of belted electronic balance main frame 4 with the electric signal of velocity correlation, accomplishes flow rate calculation by belted electronic balance main frame 4, and shows through display device.
A kind of segmentation speed change belted electronic balance characteristics also have, and said speed control interface 10 can adopt one group of switching value signal or an analog signals.When speed control interface 10 adopts one group of switching value signal; Require described frequency converter 5 to support switch control rate selection function; Frequency values through configuration frequency converter 5 each section speed makes frequency converter 5 when receiving the switching value signal of various combination, export the power supply of a certain frequency automatically, makes belt dragging motor 6 operate in a certain speed.When said speed control interface 10 adopts an analog signals; Requirement according to present flow rate is selected a certain predefined frequency by residing segmentation limit; And, make belt dragging motor 6 operate in a certain speed through the specific analog amount signal controlling frequency converter 5 automatic power supplys of exporting a certain frequency that the speed control interface is exported.
A kind of segmentation speed change belted electronic balance characteristics also have, and generally flow metering scope as requested is divided into four to eight range sections, specific speed of every section correspondence.Speed through adjustment travelling belt 7 makes at measures range not simultaneously, and the material material type of piling up on the travelling belt 7 is even, and LOAD CELLS 2 receives the weight loading of material in the zone of reasonableness of 30%-60%, and the fiducial error of LOAD CELLS 2 is little.
A kind of segmentation speed change belted electronic balance characteristics also have; Change influence in order to overcome the belt tension that speed causes to error in dipping; A kind of segmentation speed change belted electronic balance requires under friction speed, to carry out respectively zero point, range check, obtains zero point and the Slope Parameters under the friction speed section and store in the storer of belted electronic balance main frame 4 to be used for flow rate calculation.
Except that the described technical characterictic of instructions, be the known technology of those skilled in the art.
Claims (1)
1. segmentation speed change belted electronic balance; Comprise scale frame (1), belt dragging motor (6) and travelling belt (7); Said travelling belt and belt dragging motor are installed on the scale frame, and said belt dragging motor drives the travelling belt motion, it is characterized in that: also comprise weighing sensor (2), tachogenerator (3), belted electronic balance main frame (4) and frequency converter (5); Said belt dragging motor uses variable-frequency motor, and frequency converter and variable-frequency motor are electrically connected; Be equipped with weighing-up wave interface (8), rate signal interface (9) and speed control interface (10) in the said belted electronic balance main frame (4); Said LOAD CELLS and tachogenerator are installed in the inboard of belt conveyor; Said re-transmission sensor is electrically connected to the weighing-up wave interface; Said tachogenerator is electrically connected to the rate signal interface, and said speed control interface is electrically connected to frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204625850U CN202393473U (en) | 2011-11-21 | 2011-11-21 | Segmented variable speed electronic belt conveyor scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204625850U CN202393473U (en) | 2011-11-21 | 2011-11-21 | Segmented variable speed electronic belt conveyor scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202393473U true CN202393473U (en) | 2012-08-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204625850U Expired - Fee Related CN202393473U (en) | 2011-11-21 | 2011-11-21 | Segmented variable speed electronic belt conveyor scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202393473U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630217A (en) * | 2012-08-28 | 2014-03-12 | 厦门烟草工业有限责任公司 | Electronic scale outlet balance flow control method |
| CN103954345A (en) * | 2014-04-15 | 2014-07-30 | 酒泉钢铁(集团)有限责任公司 | Spherical-weight calibration method of metering belt weigher |
| CN104016076A (en) * | 2014-06-05 | 2014-09-03 | 常州艾瑞特电子有限公司 | Rapid conveying device |
| CN105241537A (en) * | 2015-09-17 | 2016-01-13 | 赛摩电气股份有限公司 | Device and method for adjusting weighing precision stability of electronic belt scale |
| CN113620032A (en) * | 2020-05-08 | 2021-11-09 | 南京宝地梅山产城发展有限公司 | Raw materials system loading attachment with automatically regulated function |
| CN113932894A (en) * | 2021-10-14 | 2022-01-14 | 卢宗奎 | Segmented zero-point model-touching belt scale based on tension detection and compensation |
-
2011
- 2011-11-21 CN CN2011204625850U patent/CN202393473U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630217A (en) * | 2012-08-28 | 2014-03-12 | 厦门烟草工业有限责任公司 | Electronic scale outlet balance flow control method |
| CN103954345A (en) * | 2014-04-15 | 2014-07-30 | 酒泉钢铁(集团)有限责任公司 | Spherical-weight calibration method of metering belt weigher |
| CN103954345B (en) * | 2014-04-15 | 2016-01-13 | 酒泉钢铁(集团)有限责任公司 | A kind of measuring belt scale ball code calibration steps |
| CN104016076A (en) * | 2014-06-05 | 2014-09-03 | 常州艾瑞特电子有限公司 | Rapid conveying device |
| CN105241537A (en) * | 2015-09-17 | 2016-01-13 | 赛摩电气股份有限公司 | Device and method for adjusting weighing precision stability of electronic belt scale |
| CN105241537B (en) * | 2015-09-17 | 2018-01-09 | 赛摩电气股份有限公司 | A kind of method of adjustment of belted electronic balance weighing precision stability |
| CN113620032A (en) * | 2020-05-08 | 2021-11-09 | 南京宝地梅山产城发展有限公司 | Raw materials system loading attachment with automatically regulated function |
| CN113932894A (en) * | 2021-10-14 | 2022-01-14 | 卢宗奎 | Segmented zero-point model-touching belt scale based on tension detection and compensation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20161121 |