CN219694327U - High-precision array double-scale metering platform - Google Patents

Abstract

The utility model discloses a high-precision array double-scale metering platform, which relates to the technical field of bulk material belt conveying metering equipment and comprises a belt conveyor, a main belt scale, a temperature sensor and an upper computer, wherein the main belt scale is fixedly arranged at a position, close to a discharge end, of the belt conveyor, the temperature sensor is fixedly arranged at a position, close to the main belt scale, of the belt conveyor, the upper computer is fixedly arranged at a position, close to the feed end, of the belt conveyor, an auxiliary belt scale is fixedly arranged at a position, close to the auxiliary belt scale, and the performance specifications of the auxiliary belt scale and the main belt scale are consistent. According to the utility model, a metering scheme of mutual comparison of the main belt scale and the auxiliary belt scale is adopted, when one of the electronic belt scales fails, the other electronic belt scale can still work normally, so that the normal operation of metering work is ensured; the main belt balance and the auxiliary belt balance can timely find metering deviation in the metering process, and timely check and calibrate, so that metering disputes between trade parties are avoided, and economic benefits of buyers and sellers are maintained.

Description

High-precision array double-scale metering platform

Technical Field

The utility model relates to the technical field of bulk material belt conveying metering equipment, in particular to a high-precision array double-scale metering platform.

Background

An electronic belt scale is a device that continuously weighs bulk materials on a belt conveyor. Electronic belt scales are widely used in the metering of industrial bulk materials such as wharfs, mineral products and the like. The metering mode of the electronic belt scale is to install the electronic belt scale on a belt conveyor which is selected to meet the installation requirement, and when the operation parameters of the belt conveyor are input, the electronic belt scale is checked and then put into operation to meter the bulk materials. At present, the belt conveying and metering of bulk materials are mostly metered by adopting a single electronic belt scale, so that the following problems exist in actual work: firstly, when a single electronic belt scale fails, the problem that metering cannot be performed occurs, and at the moment, the belt conveyor needs to be stopped, and then the electronic belt scale is overhauled, so that the conveying efficiency of bulk materials is greatly reduced; and the problem of large metering deviation can appear when a single belt scale works for a long time, so that metering disputes of trade parties can be caused, and economic benefits of buyers and sellers are damaged.

Disclosure of Invention

The utility model aims to solve the problems and provide a high-precision array double-scale metering platform.

The utility model realizes the above purpose through the following technical scheme:

the utility model provides a high-precision array double-scale metering platform which comprises a belt conveyor, a main belt scale, a temperature sensor and an upper computer, wherein the belt conveyor comprises a frame, a driving roller, a driven roller and a belt, one end of the frame is rotatably provided with the driving roller, one side of the driving roller is fixedly provided with a driving element, the other end of the frame is rotatably provided with the driven roller, a belt is arranged between the driving roller and the driven roller, the position, close to a discharge end, of the belt conveyor is fixedly provided with the main belt scale, the position, close to the main belt scale, of the belt conveyor is fixedly provided with the temperature sensor, the upper computer is fixedly arranged near the belt conveyor, the temperature sensor is electrically connected with the main belt scale, the main belt scale is electrically connected with the upper computer, the position, close to the feed end, of the belt conveyor is fixedly provided with an auxiliary belt scale, and the auxiliary belt scale is consistent with the performance specification of the main belt scale; the main belt scale comprises a first weighing unit, a first speed measuring sensor and a first display instrument, wherein the first weighing unit and the first speed measuring sensor are fixedly arranged on the frame, the first weighing unit is provided with a plurality of first speed measuring sensors which are uniformly distributed, the first weighing unit and the first speed measuring sensor are electrically connected with the first display instrument, the temperature sensor is electrically connected with the first display instrument, and the first display instrument is electrically connected with the upper computer; the auxiliary belt scale comprises a second weighing unit, a second speed measuring sensor and a second display instrument, wherein the second weighing unit and the second speed measuring sensor are fixedly installed on the frame, the second weighing unit is provided with a plurality of sensors which are uniformly distributed, the second weighing unit and the second speed measuring sensor are electrically connected with the second display instrument, the temperature sensor is electrically connected with the second display instrument, and the second display instrument is electrically connected with the upper computer.

Preferably, the number of the first weighing units is 8 or 12; the number of the second weighing units is 8 groups or 12 groups.

Further, the first weighing unit comprises two groups of weighing idler rollers and digital weighing sensors, the two groups of weighing idler rollers are both arranged on the rack, the digital weighing sensors are arranged on the rack between the two groups of weighing idler rollers, the digital weighing sensors of the plurality of groups of first weighing units are sequentially connected in series through connecting wires, and the digital weighing sensors of the last group of first weighing units are connected with the first display instrument through connecting wires; the second weighing unit comprises two groups of weighing idler rollers and digital weighing sensors, the two groups of weighing idler rollers are all installed on the frame, the digital weighing sensors are installed on the frame between the two groups of weighing idler rollers, the digital weighing sensors of the second weighing unit are sequentially connected in series through connecting wires, and the digital weighing sensors of the second weighing unit of the last group are connected with the second display instrument through connecting wires.

Further, the digital weighing sensor is provided with a first wiring terminal and a second wiring terminal; the second wiring ends of the digital weighing sensors of one group of the first weighing units are connected with the first wiring ends of the digital weighing sensors of the other group of the first weighing units through connecting wires, and the second wiring ends of the digital weighing sensors of the other group of the first weighing units are connected with the first wiring ends of the digital weighing sensors of the next group of the first weighing units through connecting wires; the second wiring ends of the digital weighing sensors of one group of the second weighing units are connected with the first wiring ends of the digital weighing sensors of the other group of the second weighing units through connecting wires, and the second wiring ends of the digital weighing sensors of the other group of the second weighing units are connected with the first wiring ends of the digital weighing sensors of the next group of the second weighing units through connecting wires.

Preferably, the distance between the first weighing unit closest to the second weighing unit and the second weighing unit closest to the first weighing unit is 8-10 m.

Preferably, the belt conveyer top is located main belt balance with be provided with the hopper balance between the auxiliary belt balance, hopper balance one side is provided with the third display instrument, the third display instrument with the host computer is connected through the connecting wire, hopper balance one side is provided with auger conveyer, auger conveyer feed end extends to the feed end of belt conveyer, auger conveyer discharge end extends to the feed end of hopper balance.

The working principle of the utility model is as follows: (1) A main belt scale is fixedly arranged on the belt conveyor at a position close to a discharge end (discharge direction), an auxiliary belt scale is fixedly arranged on the belt conveyor at a position close to a feed end (feed direction), a hopper scale is arranged at a position between the main belt scale and the auxiliary belt scale, a packing auger conveyor is arranged on one side of the belt conveyor, the feed end of the packing auger conveyor is positioned at the feed end of the belt conveyor, and the discharge end of the packing auger conveyor is positioned at the feed end of the hopper scale; (2) Zero point and real object verification is carried out on the main belt scale and the auxiliary belt scale, so that the consistency of the dynamic performance, the error precision and the initial data value of the main belt scale and the auxiliary belt scale is ensured; (3) The conveying equipment conveys bulk materials to a feeding end of the belt conveyor, the belt conveyor is used for conveying the bulk materials, the bulk materials are conveyed to the auxiliary belt scale on the belt, the digital weighing sensors of the second weighing unit convert the weight of the bulk materials into digital electric signals, the 8 digital weighing sensors are sequentially connected in series and transmit the digital electric signals to the second display instrument through connecting wires, the second speed measuring sensor converts the speed value of the belt into electric signals, the electric signals are transmitted to the second display instrument through the connecting wires, the temperature sensor converts the temperature value of the surrounding environment of the belt into electric signals, the electric signals are transmitted to the second display instrument through the connecting wires, the second display instrument correspondingly calculates and processes the transmitted signals and converts the calculated and processed signals into instantaneous flow and accumulated flow, the second display instrument displays the values, and the values are transmitted to the upper computer through the connecting wires; (4) The belt conveyor conveys bulk materials to a main belt scale, a digital weighing sensor of a first weighing unit converts the weight of the bulk materials into digital electric signals, 8 digital weighing sensors are sequentially connected in series and transmit the digital electric signals to a first display instrument through a connecting wire, a first speed measuring sensor converts the speed value of a belt into electric signals, the electric signals are transmitted to the first display instrument through the connecting wire, a temperature sensor converts the temperature value of the surrounding environment of the belt into electric signals, the electric signals are transmitted to the first display instrument through the connecting wire, the first display instrument carries out corresponding operation and processing on the transmitted signals and converts the signals into instantaneous flow and accumulated flow, the first display instrument displays the numerical value, and the numerical value is transmitted to an upper computer through the connecting wire; (5) The upper computer respectively compares and analyzes the data transmitted from the second display instrument and the first display instrument, and when the auxiliary belt scale or the main belt scale fails or the numerical values of the auxiliary belt scale and the main belt scale deviate greatly, the upper computer alarms and reminds workers; (6) Checking a main belt scale, conveying part of bulk materials at a feeding end of the belt conveyor into the hopper scale by the auger conveyor, weighing and metering the hopper scale, displaying the weight value of the bulk materials in the hopper scale by a third display instrument, taking the weight value as a checking standard value, transmitting the weight value data to an upper computer by a connecting wire, dropping the bulk materials in the hopper scale onto a belt between an auxiliary belt scale and the main belt scale, conveying the bulk materials from the auxiliary belt scale and the bulk materials from the hopper scale onto the main belt scale together, weighing and metering the bulk materials by the main belt scale, displaying the weight value of the bulk materials by a first display instrument, transmitting the weight value data to the upper computer by the connecting wire, subtracting the weight value data of the auxiliary belt scale by the upper computer, comparing the weight value data with the standard weight value data of the hopper scale to obtain a relative difference value, and calibrating the main belt scale according to the relative difference value; (7) And (3) checking the auxiliary belt balance, comparing the weight value data of the bulk materials weighed by the main belt balance after checking and calibrating with the weight value data of the same bulk materials weighed by the auxiliary belt balance to be checked, obtaining a relative difference value of the two, and finally calibrating the auxiliary belt balance according to the relative difference value.

The utility model has the beneficial effects that: (1) According to the utility model, a metering scheme of mutual comparison of the main belt scale and the auxiliary belt scale is adopted, when one of the electronic belt scales fails, the other electronic belt scale can still work normally, so that the normal operation of bulk material conveying and metering work is ensured; (2) The main belt balance and the auxiliary belt balance can timely find metering deviation in the metering process, and timely check and calibrate, so that metering disputes of trade parties are avoided, and economic benefits of buyers and sellers are maintained; (3) The digital weighing sensors are connected to the display instrument in series through connecting wires, so that the use of a junction box is reduced, the cost is saved, and the failure rate is reduced; (4) On the basis of adopting two belt scales of main assistance, further increase and set up the hopper balance, the hopper balance can carry out real-time on-line check-up calibration to main belt scale, then carries out check-up calibration to assisting the belt scale through the main belt scale after the check-up calibration, and to the check-up calibration convenient and fast of two belt scales of main assistance like this, and promote the degree of accuracy of check-up calibration.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a first weighing cell of the present utility model;

FIG. 3 is a schematic diagram of the wiring of the digital load cell of the present utility model.

Reference numerals illustrate:

1. a belt conveyor; 11. a frame; 12. a drive roll; 13. driven roller; 14. a belt;

2. a main belt scale; 21. a first weighing unit; 211. weighing carrier rollers; 212. a digital weighing sensor; 213. a first terminal; 214. a second terminal; 22. a first speed sensor; 23. a first display meter;

3. an auxiliary belt scale; 31. a second weighing unit; 32. a second speed sensor; 33. a second display meter;

4. a temperature sensor;

5. an upper computer;

6. a hopper scale; 61. a fixing frame; 62. a third display meter;

7. an auger conveyor;

8. bulk material;

9. and (5) connecting wires.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

as shown in fig. 1, the utility model provides a high-precision array double-scale metering platform, which comprises a belt conveyor 1, a main belt scale 2, a temperature sensor 4 and an upper computer 5. The belt conveyor 1 includes a frame 11, a driving roller 12, a driven roller 13, and a belt 14. One end of the frame 11 is rotatably provided with a driving roller 12, and one side of the driving roller 12 is fixedly provided with a driving element which can be a gear motor. The other end of the frame 11 is rotatably provided with a driven roller 13, and a belt 14 is arranged between the driving roller 12 and the driven roller 13. The belt conveyor 1 is fixedly provided with a main belt scale 2 near the discharge end, wherein the main belt scale 2 is arranged on the belt conveyor 1 at least 20 m away from the drive roller 12. The belt conveyor 1 is fixedly provided with a temperature sensor 4 near the main belt scale 2, and an upper computer 5 near the belt conveyor 1. The temperature sensor 4 is electrically connected with the main belt scale 2, and the main belt scale 2 is electrically connected with the upper computer 5. The belt conveyor 1 is fixedly provided with an auxiliary belt scale 3 near the feeding end. The auxiliary belt balance 3 is consistent with the performance specification of the main belt balance 2, and the model and specification of the selected parts of the auxiliary belt balance 3 and the main belt balance 2 are identical. The main belt scale 2 comprises a first weighing unit 21, a first speed sensor 22 and a first display meter 23. The first weighing unit 21 and the first speed sensor 22 are fixedly mounted on the frame 11. The first weighing cells 21 are plural and uniformly distributed. The first weighing unit 21 and the first speed measuring sensor 22 are electrically connected with the first display instrument 23, the temperature sensor 4 is electrically connected with the first display instrument 23, and the first display instrument 23 is electrically connected with the upper computer 5. The auxiliary belt scale 3 comprises a second weighing unit 31, a second speed sensor 32 and a second display meter 33. The second weighing unit 31 and the second tachometer sensor 32 are both fixedly mounted on the frame 11. The second weighing cells 31 are plural and uniformly distributed. The second weighing unit 31 and the second speed measuring sensor 32 are electrically connected with a second display instrument 33, the temperature sensor 4 is electrically connected with the second display instrument 33, and the second display instrument 33 is electrically connected with the upper computer 5.

As shown in fig. 1 and 2, further, based on the above embodiment, the number of the first weighing units 21 is 8, and similarly, the number of the second weighing units 31 is 8; the number of the first weighing cells 21 may be 12, and similarly, the number of the second weighing cells 31 may be 12.

As shown in fig. 1 and 2, further, the first weighing cell 21 includes a load cell 211 and a digital load cell 212 on the basis of the above-described embodiments. The weighing idler rollers 211 are arranged in two groups and are all arranged on the frame 11, and the digital weighing sensor 212 is arranged on the frame 11 between the two groups of the weighing idler rollers 211. The digital weighing sensors 212 of the plurality of groups of first weighing units 21 are sequentially connected in series through a connecting wire 9, and the digital weighing sensors 212 of the last group of first weighing units 21 are connected with a first display instrument 23 through the connecting wire 9. The second weighing cell 31 comprises a weighing idler 211 and a digital load cell 212. The weighing idler rollers 211 are arranged in two groups and are all arranged on the frame 11, and the digital weighing sensor 212 is arranged on the frame 11 between the two groups of the weighing idler rollers 211. The digital weighing sensors 212 of the plurality of groups of second weighing units 31 are sequentially connected in series through a connecting wire 9, and the digital weighing sensors 212 of the last group of second weighing units 31 are connected with a second display instrument 33 through the connecting wire 9. The digital weighing sensor 212 has the advantages of high signal acquisition rate, strong anti-interference capability, more stable signals and expanded intelligent diagnosis function.

As shown in fig. 1, 2 and 3, further, on the basis of the above-described embodiment, the digital load cell 212 is provided with a first terminal 213 and a second terminal 214. The second terminals 214 of the digital weighing sensors 212 of one group of the first weighing cells 21 are connected with the first terminals 213 of the digital weighing sensors 212 of the other group of the first weighing cells 21 through the connecting lines 9, the second terminals 214 of the digital weighing sensors 212 of the other group of the first weighing cells 21 are connected with the first terminals 213 of the digital weighing sensors 212 of the next group of the first weighing cells 21 through the connecting lines 9, and when the digital weighing sensors 212 of the eight groups of the first weighing cells 21 are all connected in series through the connecting lines 9, the second terminals 214 of the digital weighing sensors 212 of the last group of the first weighing cells 21 are connected with the first display instrument 23 through the connecting lines 9; the second terminals 214 of the digital weighing sensors 212 of one set of second weighing cells 31 are connected with the first terminals 213 of the digital weighing sensors 212 of the other set of second weighing cells 31 through the connecting line 9, the second terminals 214 of the digital weighing sensors 212 of the other set of second weighing cells 31 are connected with the first terminals 213 of the digital weighing sensors 212 of the next set of second weighing cells 31 through the connecting line 9, and when the digital weighing sensors 212 of the eight sets of second weighing cells 31 are all connected in series through the connecting line 9, the second terminals 214 of the digital weighing sensors 212 of the last set of second weighing cells 31 are connected with the second display instrument 33 through the connecting line 9.

As shown in fig. 1, further, on the basis of the above-described embodiment, the distance between the first weighing cell 21 closest to the second weighing cell 31 and the second weighing cell 31 closest to the first weighing cell 21 is 8 to 10m. Since the conveying speed of the belt conveyor 1 is constant at 2.5m/s, the second weighing unit 31 is spaced from the first weighing unit 21 by this distance, and an optimal metering effect can be achieved.

As shown in fig. 1, further, a hopper scale 6 is arranged between the main belt scale 2 and the auxiliary belt scale 3 above the belt conveyor 1, and the hopper scale 6 is fixedly mounted on a fixing frame 61. Wherein, the precision of the hopper scale 6 is required to be ensured to be better than two grades of the main belt scale 2 and the auxiliary belt scale 3. A third display instrument 62 is arranged on one side of the hopper scale 6, and the third display instrument 62 is connected with the upper computer 5 through a connecting wire 9. One side of the hopper scale 6 is provided with an auger conveyor 7, a feeding end of the auger conveyor 7 extends to a feeding end of the belt conveyor 1, and a discharging end of the auger conveyor 7 extends to a feeding end of the hopper scale 6. The hopper scale 6 can realize real-time on-line calibration of the main belt scale 2 and the auxiliary belt scale 3.

As shown in fig. 1, 2 and 3, (1) during installation, a main belt scale 2 is fixedly installed on a belt conveyor 1 at a position close to a discharge end (discharge direction), an auxiliary belt scale 3 is fixedly installed on the belt conveyor 1 at a position close to a feed end (feed direction), a hopper scale 6 is installed at a position between the main belt scale 2 and the auxiliary belt scale 3, an auger conveyor 7 is installed on one side of the belt conveyor 1, a feed end of the auger conveyor 7 is located at a feed end of the belt conveyor 1, and a discharge end of the auger conveyor 7 is located at a feed end of the hopper scale 6. (2) Zero point and real object verification are carried out on the main belt balance 2 and the auxiliary belt balance 3, so that the dynamic performance, error precision and initial data value of the main belt balance 2 and the auxiliary belt balance 3 are consistent. (3) The conveyor device conveys bulk materials 8 to the feeding end of the belt conveyor 1, the belt conveyor 1 works to convey the bulk materials 8, the bulk materials 8 are conveyed to the auxiliary belt scale 3 on the belt 14, the digital weighing sensor 212 of the second weighing unit 31 converts the weight of the bulk materials 8 into digital electric signals, the digital weighing sensor 212 is sequentially connected in series through the connecting wire 9 to transmit the digital electric signals to the second display instrument 33, the second speed measuring sensor 32 converts the speed value of the belt 14 into electric signals, the electric signals are transmitted to the second display instrument 33 through the connecting wire 9, the temperature sensor 4 converts the temperature value of the surrounding environment of the belt into electric signals, the electric signals are transmitted to the second display instrument 33 through the connecting wire 9, the second display instrument 33 carries out corresponding operation and processing on the transmitted signals and converts the signals into instantaneous flow and accumulated flow, the second display instrument 33 displays the numerical values, and the numerical values are transmitted to the upper computer 5 through the connecting wire 9. (4) The belt conveyor 1 conveys bulk materials 8 to the main belt scale 2, the digital weighing sensor 212 of the first weighing unit 21 converts the weight of the bulk materials 8 into digital electric signals, the 8 digital weighing sensor 212 sequentially and serially transmits the digital electric signals to the first display instrument 23 through the connecting wire 9, the first speed measuring sensor 22 converts the speed value of the belt 14 into electric signals, the electric signals are transmitted to the first display instrument 23 through the connecting wire 9, the temperature sensor 4 converts the temperature value of the surrounding environment of the belt into electric signals, the electric signals are transmitted to the first display instrument 23 through the connecting wire 9, the first display instrument 23 carries out corresponding operation and processing on the transmitted signals and converts the signals into instantaneous flow and accumulated flow, the first display instrument 23 displays the values, and the values are transmitted to the upper computer 5 through the connecting wire 9. (5) The upper computer 5 performs comparison analysis on the data transmitted from the second display instrument 33 and the first display instrument 23, and when the auxiliary belt scale 3 or the main belt scale 2 fails or the auxiliary belt scale 3 and the main belt scale 2 have larger deviation in numerical value, the upper computer 5 alarms and reminds the staff. (6) The main belt balance 2 is checked, the auger conveyor 7 conveys part of bulk materials 8 at the feeding end of the belt conveyor 1 into the hopper balance 6, the hopper balance 6 performs weighing measurement, the third display instrument 62 displays the weight value of the bulk materials 8 in the hopper balance 6 and is used as a check standard value, the weight value data are transmitted to the upper computer 5 through the connecting wire 9, the bulk materials 8 in the hopper balance 6 fall onto the belt 14 between the auxiliary belt balance 3 and the main belt balance 2, the bulk materials 8 from the auxiliary belt balance 3 and the bulk materials 8 from the hopper balance 6 are conveyed onto the main belt balance 2 together, the main belt balance 2 performs weighing measurement on the bulk materials 8, the first display instrument 23 displays the weight value of the bulk materials 8 and transmits the weight value data to the upper computer 5 through the connecting wire 9, the upper computer 5 subtracts the weight value data of the auxiliary belt balance 3 from the weight value data of the main belt balance 2, then compares the weight value data with the standard weight value data of the hopper balance 6 to obtain a relative difference value, and finally the main belt balance 2 is calibrated according to the relative difference value. (7) And (3) checking the auxiliary belt balance 3, comparing the weight value data of the bulk materials 8 weighed by the main belt balance 2 after checking and calibrating with the weight value data of the same bulk materials 8 weighed by the auxiliary belt balance 3 to be checked to obtain a relative difference value of the two, and finally calibrating the auxiliary belt balance 3 according to the relative difference value.

The high-precision array double-scale metering platform can be applied to weighing metering of coal, grains, gravel and the like.

The foregoing is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. Those skilled in the art will appreciate that many changes, modifications, substitutions and alterations can be made to these embodiments without departing from the spirit and scope of the utility model, which are intended to be within the scope of the utility model. The scope of the utility model is defined by the claims and their equivalents.

Claims (6)

1. The utility model provides a high-precision array double-scale metering platform, includes band conveyer, main belt scale, temperature sensor and host computer, band conveyer includes frame, drive roll, driven voller and belt, the drive roll is installed in frame one end rotation, drive roll one side is fixed to be provided with driving element, the driven voller is installed in the frame other end rotation, the drive roll with install the belt between the driven voller, band conveyer is close to discharge end position fixed mounting has main belt scale, band conveyer is close to main belt scale position fixed mounting has temperature sensor, band conveyer is close to fixed mounting has the host computer, temperature sensor with main belt scale electricity is connected, main belt scale with the host computer electricity is connected, its characterized in that: an auxiliary belt scale is fixedly arranged at the position, close to the feeding end, of the belt conveyor, and the auxiliary belt scale is consistent with the performance specification of the main belt scale; the main belt scale comprises a first weighing unit, a first speed measuring sensor and a first display instrument, wherein the first weighing unit and the first speed measuring sensor are fixedly arranged on the frame, the first weighing unit is provided with a plurality of first speed measuring sensors which are uniformly distributed, the first weighing unit and the first speed measuring sensor are electrically connected with the first display instrument, the temperature sensor is electrically connected with the first display instrument, and the first display instrument is electrically connected with the upper computer; the auxiliary belt scale comprises a second weighing unit, a second speed measuring sensor and a second display instrument, wherein the second weighing unit and the second speed measuring sensor are fixedly installed on the frame, the second weighing unit is provided with a plurality of sensors which are uniformly distributed, the second weighing unit and the second speed measuring sensor are electrically connected with the second display instrument, the temperature sensor is electrically connected with the second display instrument, and the second display instrument is electrically connected with the upper computer.

2. The high-precision array dual-scale metering platform of claim 1, wherein: the number of the first weighing units is 8 groups or 12 groups; the number of the second weighing units is 8 groups or 12 groups.

3. The high-precision array dual-scale metering platform of claim 2, wherein: the first weighing units comprise two groups of weighing idler rollers and digital weighing sensors, the two groups of weighing idler rollers are arranged on the rack, the digital weighing sensors are arranged on the rack between the two groups of weighing idler rollers, the digital weighing sensors of the multiple groups of first weighing units are sequentially connected in series through connecting wires, and the digital weighing sensors of the last group of first weighing units are connected with the first display instrument through connecting wires; the second weighing unit comprises two groups of weighing idler rollers and digital weighing sensors, the two groups of weighing idler rollers are all installed on the frame, the digital weighing sensors are installed on the frame between the two groups of weighing idler rollers, the digital weighing sensors of the second weighing unit are sequentially connected in series through connecting wires, and the digital weighing sensors of the second weighing unit of the last group are connected with the second display instrument through connecting wires.

4. A high-precision array dual-scale metering platform as claimed in claim 3, wherein: the digital weighing sensor is provided with a first wiring terminal and a second wiring terminal; the second wiring ends of the digital weighing sensors of one group of the first weighing units are connected with the first wiring ends of the digital weighing sensors of the other group of the first weighing units through connecting wires, and the second wiring ends of the digital weighing sensors of the other group of the first weighing units are connected with the first wiring ends of the digital weighing sensors of the next group of the first weighing units through connecting wires; the second wiring ends of the digital weighing sensors of one group of the second weighing units are connected with the first wiring ends of the digital weighing sensors of the other group of the second weighing units through connecting wires, and the second wiring ends of the digital weighing sensors of the other group of the second weighing units are connected with the first wiring ends of the digital weighing sensors of the next group of the second weighing units through connecting wires.

5. The high-precision array dual-scale metering platform of claim 2, wherein: the distance between the first weighing unit closest to the second weighing unit and the second weighing unit closest to the first weighing unit is 8-10 m.

6. A high-precision array dual-scale metering platform according to any of claims 1-5, wherein: the belt conveyer top is located main belt balance with be provided with the hopper balance between the auxiliary belt balance, hopper balance one side is provided with the third display instrument, the third display instrument with the host computer is connected through the connecting wire, hopper balance one side is provided with auger conveyer, auger conveyer feed end extends to belt conveyer's feed end, auger conveyer discharge end extends to the feed end of hopper balance.