CN201215503Y

CN201215503Y - Metering control device for high-reliable electronic belt scale

Info

Publication number: CN201215503Y
Application number: CNU2008200401558U
Authority: CN
Inventors: 厉达; 张兴国
Original assignee: JIANGSU SAIMO GROUP CO Ltd
Current assignee: Saimo Electric Co Ltd
Priority date: 2008-06-27
Filing date: 2008-06-27
Publication date: 2009-04-01
Anticipated expiration: 2018-06-27

Abstract

A high reliability weighting controller for electronic belt scales is composed of a plurality of two-way signal output weighting sensor modules, a displacement sensor and an accumulator which are connected with a belt scale bearer, wherein the accumulator comprises a signal receiver connected with the two-way signal output weighting sensor modules, the signal receiver is connected with a processor which is respectively connected with the displacement sensor, a display device and a power supply. Via the two-way signal output weighting sensor modules capable of outputting two way of same weighting signals, the two way of weighting signals are backup online by each other, therefore, when one way has faults, the processor can make on-time judgment, insulation and alarm, without interrupting the transmission, stopping the system and exchanging the weighting sensors, to avoid the losses brought by the recalibration on the belt scale caused by exchanging weighting sensors. The high reliability weighting controller resolves the inaccurate and hidden measurement problem caused by the abnormal sensors in transmission.

Description

The Weighing control device of high-reliability electronic belt scale

Technical field

The utility model relates to a kind of Weighing control device, especially a kind of Weighing control device that is applicable to the high-reliability electronic belt scale of the continuous convey materials on-line monitoring of belt conveyor.

Background technology

At present, the belted electronic balance that is used for belt conveyor material consecutive weighings, adopt more and a LOAD CELLS of having only one road weighing-up wave output only is installed on a LOAD CELLS position of carrier, and form the belted electronic balance weighing system by one or more groups this measuring sensor and tachogenerator and integrating instrument as measuring sensor.The LOAD CELLS of the belted electronic balance of this version is owing to have only the output of one road weighing-up wave, and then whole belt conveyer scale will measure and be forbidden when wherein having a LOAD CELLS to break down, and is difficult in the operational process finding; This defective will be forbidden to bring unnecessary loss because of metering in the convey materials process.

Summary of the invention

The purpose of this utility model is the weak point that overcomes in the prior art, provides a kind of metering accurate, and easy care is guaranteed the Weighing control device of the high-reliability electronic belt scale of belt conveyer scale safe operation.

For achieving the above object, the technical solution of the utility model is to be made up of the many groups two-way signal output Weighing cell module, displacement transducer and the integrating instrument that connect the belt conveyer scale carrier; Integrating instrument comprises the signal receiver that links to each other with many groups two-way signal output Weighing cell module, signal receiver connection processing device, and processor connects displacement transducer, display and power supply respectively.

Described many group two-way signal output Weighing cell modules are four groups, three groups or two groups of two-way signal output Weighing cell modules; Every group of two-way signal output Weighing cell module is made up of two elastic bodys of LOAD CELLS and two groups of independent bridge circuits that are provided with that are located at respectively on two elastic bodys; Described every group of two-way signal output Weighing cell module is made up of an elastic body of LOAD CELLS and two groups of independent bridge circuits that are provided with that are located on this elastic body.

Beneficial effect: the utility model adopts two-way signal output Weighing cell module as weighing signal measurement element; adopt one or two displacement sensor rate signal; two-way weighing signal and rate signal enter processor respectively separately; processor carries out real-time online comparison separately respectively to the weighing-up wave and the rate signal of input; when wherein one the tunnel occurring when unusual; normal cumulative amount can in time be judged and show to integrating instrument; transportation work does not interrupt; system does not need to shut down, and equipment still can continue reliability service.Do not need to change LOAD CELLS yet, need be thereby avoided to belt conveyer scale from various losses that new demarcation brought owing to change LOAD CELLS.Solved in transportation work because sensor takes place unusually, caused metering inaccurate, be not easy to find to measure simultaneously an inaccurate difficult problem again.Improve the reliability and the metering precision of belt conveyer scale, be applicable to the on-line precise and reliable Weighing of the continuous convey materials of belt conveyor.Its compact conformation is reasonable, the reliability height, and metering is accurate, easy care, long service life has practicality widely.

Description of drawings

Fig. 1 is a control system synoptic diagram of the present utility model;

Fig. 2 is a signal fusing workflow diagram of the present utility model;

Fig. 3 is application example one structural plan of the present utility model;

Fig. 4 is application example two structural plans of the present utility model;

Fig. 5 is application example three structural plans of the present utility model.

In the accompanying drawing: 1-two-way signal output Weighing cell module, 2-bridge circuit, 3-signal receiver, 4-master's integrating unit, the auxilliary integrating unit of 5-, 6-displacement transducer, 7-carrier, 8-integrating instrument, 9-Weighing cell module bearing support, 10-band conveyor framework, 11-weighing carrier roller support frame, 12-weighing carrier roller.

Embodiment

The utility model will be further described below in conjunction with the embodiment in the accompanying drawing:

Shown in Figure 1, the Weighing control device of high-reliability electronic belt scale of the present utility model, is connected integrating instrument 8 with two displacement transducers 6 and forms by being located at four groups of two-way signals output Weighing cell modules 1 on the belt conveyer scale carrier 7, it is that A, B, four groups of two-way signals of C, D are exported Weighing cell module that four groups of two-way signals are exported Weighing cell modules 1.To the electronic belt scale of different structure, two-way signal output Weighing cell module 1 can be provided with three groups or two groups, i.e. A, B, three groups of C or two groups of two-way signal output of A, B Weighing cell module.The version of this two-way signal output Weighing cell module 1 is two kinds, a kind of is that every group of two-way signal output Weighing cell module 1 is made up of two elastic bodys of LOAD CELLS and two groups of independent bridge circuits 2 that are provided with that are located at respectively on two elastic bodys, promptly on two elastic bodys of LOAD CELLS, paste one group of independently version of bridge circuit 2 respectively, consequently can on the LOAD CELLS position of carrier 7, export the two-way weighing-up wave simultaneously.Another kind of is that every group of two-way signal output Weighing cell module 1 is made up of an elastic body of LOAD CELLS and two groups of independent bridge circuits 2 that are provided with that are located on this elastic body, promptly on an elastic body of LOAD CELLS, paste two groups and independently measure bridge circuit 2 versions, consequently can on the LOAD CELLS position of carrier 7, export the two-way weighing-up wave simultaneously.Two-way signal output Weighing cell module 1 is exported the two-way weighing-up wave in weighing, every road output signal connects integrating instrument 8.Integrating instrument 8 comprises the signal receiver that links to each other with many groups two-way signal output Weighing cell module 1, signal receiver connection processing device, processor is connected with two displacement transducers 6, display and power supplys respectively, is connected with reshaper between displacement transducer 6 and the processor; The weighing-up wave comparing unit that communicates with A, B, C, four groups of two-way sensor signals of D output point A1, A2, B1, B2, C1, C2, D1, D2 is contained in processor inside shown in Figure 1, weighing-up wave comparing unit output point A1, B1, C1, D1 connect main integrating unit 4, output point A2, B2, C2, D2 connect auxilliary integrating unit 5, two-way speed comparing unit output point connects main integrating unit 4 and auxilliary integrating unit 5, main integrating unit 4 and auxilliary integrating unit 5 connect the integrating comparing unit respectively, and the integrating comparing unit connects display.The sensor two-way outputs to main integrating unit 4 and auxilliary integrating unit 5 compares respectively; judge and processing; processor will be respectively to main integrating unit 4; the on-line automatic comparison of each road output carrying out of auxilliary integrating unit 5 used Weighing cell modules; judge control; thereby determine to get rid of the cumulative amount of problematic that road sensor; the normal cumulative amount of other No. one sensor this moment still can continue to keep belted electronic balance system operate as normal; cause the weighing system metering not interrupted; do not need to shut down; treat to change LOAD CELLS again behind the orderly closedown; thereby avoided belt conveyer scale being demarcated the loss that is brought again owing to need to change LOAD CELLS in the operational process; and measure the inaccurate loss that causes, thereby improved the reliability that the belted electronic balance system uses.

Figure 2 shows that the signal fusing workflow of belted electronic balance:

Whether the comparison of a. main and auxiliary integrating unit is at setting range;

B.Y (being) shows main integrating unit semi-invariant;

C.N (denying), main integrating unit respectively to its LOAD CELLS output compare whether at setting range;

D.Y (being) shows main integrating unit semi-invariant, reports to the police in auxilliary integrating unit;

E.N (denying), whether compare at setting range to its LOAD CELLS output respectively auxilliary integrating unit;

F.Y (being) shows auxilliary integrating unit semi-invariant;

G.N (denying), the system failure is reported to the police.

Figure 3 shows that application example one of the present utility model: two-way signal output Weighing cell module 1 is divided into totally four groups of forward and backward two parts, be arranged in the place, two ends of Weighing cell module bearing support 9 separately in twos, Weighing cell module bearing support 9 is supported by band conveyor framework 10.The upper end fixed and arranged of two-way signal output Weighing cell module 1 is on the crossbeam of Weighing cell module bearing support 9, and its lower end connects weighing carrier roller support frame 11.By this mode integrating instrument is passed in the output of LOAD CELLS two-way.Integrating instrument finishes real-time online comparison, judges control by Fig. 2 signal fusing workflow diagram, and when a certain road signal occurs when unusual, integrating instrument can judge in time that control also show normal cumulative amount.

Figure 4 shows that application example two of the present utility model: two-way signal output Weighing cell module 1 is divided into totally two groups of left and right two parts, two groups of two-way signal output Weighing cell modules 1 are arranged in the left and right sides of band conveyor framework 10 separately, wherein an end is separately fixed on the band conveyor framework 10, and an other end is held unsteady the connection respectively with about weighing carrier roller 12.All the other are identical with application example one, slightly.

Figure 5 shows that application example three of the present utility model: below the centre of weighing carrier roller support frame 11 layout Weighing cell module bearing supports 9, the one end grows an end floor beam of Weighing cell module bearing support 9, the other end crossbeam of the other end and Weighing cell module bearing support 9 is hinged, two-way signal output Weighing cell module 1 is divided into totally two groups of left and right two parts, be arranged in the left and right both sides of an end floor beam of Weighing cell module bearing support 9 separately, Weighing cell module bearing support 9 is supported by band conveyor framework 10.The upper end fixed and arranged of two-way signal output Weighing cell module 1 is on the crossbeam of Weighing cell module bearing support 9, and its lower end connects weighing carrier roller support frame 11.All the other are identical with application example one, slightly.

Claims

1. the Weighing control device of high-reliability electronic belt scale is characterized in that: it is made up of the many groups two-way signal output Weighing cell module (1), displacement transducer (6) and the integrating instrument (8) that connect belt conveyer scale carrier (7); Integrating instrument (8) comprises the signal receiver (3) that links to each other with many group two-way signal output Weighing cell modules (1), signal receiver (3) connection processing device, and processor connects displacement transducer (6), display and power supply respectively.

2. the Weighing control device of high-reliability electronic belt scale according to claim 1 is characterized in that: described many group two-way signals output Weighing cell modules (1) are four groups, three groups or two groups of two-way signals output Weighing cell modules.

3. the Weighing control device of high-reliability electronic belt scale according to claim 1 and 2 is characterized in that: described every group of two-way signal output Weighing cell module (1) is made up of two elastic bodys of LOAD CELLS and the bridge circuits (2) that are located at two groups of independent settings on two elastic bodys respectively.

4. the Weighing control device of high-reliability electronic belt scale according to claim 1 and 2 is characterized in that: described every group of two-way signal output Weighing cell module (1) is made up of an elastic body of LOAD CELLS and two groups of independent bridge circuits (2) that are provided with that are located on this elastic body.

5. the Weighing control device of high-reliability electronic belt scale according to claim 1 is characterized in that: described displacement transducer (6) is one or two.