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Three-fulcrum single-scale redundant electronic belt scale and working method

An electronic belt scale and three-support technology, applied in the direction of measuring devices, instruments, weighing, etc., can solve the problems of poor measurement accuracy, large eccentric load, high equipment cost, etc., and achieve uniform and stable force and strong anti eccentric load ability , the effect of high measurement accuracy

Pending Publication Date: 2021-01-01
王祝辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are poor resistance to front and rear eccentric loads, short weighing section, and poor measurement accuracy.
c. 4 load cells, which are fully carried by the 4 load cells at the four corners. Generally, a movable load-bearing frame in the form of multiple sets of idler rollers is used. The disadvantage is that it is difficult to ensure that the four load cells are on the same level, and it is difficult to adjust the four corners. , the four corners are unbalanced, and the partial load is large
Its advantage is that the overall reliability is improved, and its disadvantages are high equipment cost, requiring longer straight belt sections, and increased maintenance

Method used

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  • Three-fulcrum single-scale redundant electronic belt scale and working method
  • Three-fulcrum single-scale redundant electronic belt scale and working method
  • Three-fulcrum single-scale redundant electronic belt scale and working method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as Figure 1-5 As shown, a redundant electronic belt scale with three fulcrums and single scales comprises a belt frame 10, on which a load-bearing frame is movable, and the movable load-bearing frame is connected with the belt frame 10 through a load cell 5, and the movable load-bearing frame is specifically Including movable load-bearing frame longitudinal beams 31 and movable load-bearing frame beams 32, the number of movable load-bearing frame longitudinal beams 31 is 2, the two movable load-bearing frame longitudinal beams 31 are arranged in parallel, and there are several movable load-bearing frames vertically connected between the movable load-bearing frame longitudinal beams 31 Frame beam 32, the movable load-bearing frame beam 32 is provided with a speed sensor 8; A load cell C53 and a load cell B52 are respectively provided at both ends of the beam 1, and a load cell A51 is provided at the center of the second fixed beam 2; the load cell C53, the load cel...

Embodiment 2

[0044] The structure of a redundant electronic belt scale with three fulcrums and single scales is consistent with that of Embodiment 1, except that the weighing controller 9 is a single-chip microcomputer, and the model is M68300 series of Motorola Company.

Embodiment 3

[0046] Explanation of terms: The range coefficient of the belt scale, that is, the use range of the selected load cell, is generally safe to take 0.3 to 0.8, because the overload index of the domestic load cell is generally 150%, and the load cell should be given about 10% when installing Therefore, at full scale, the force value of the load cell is 40% to 90% of the rated range, so that it will not be overloaded. The range coefficient of the belt scale tends to be less than 0.5 at present, so that the possibility of sensor overload is small, the life is long, and it can provide margin for range expansion.

[0047] For the formula mentioned in the following steps, the unit of V is m / S, the unit of Ma, Mb, Mc, Ma', Mbc' is kg, the unit of F, Fa, Fbc is t / h, and the unit of Q, Q' The unit of t and △t is s.

[0048] A working method of a redundant electronic belt scale with three fulcrums and a single scale, its structure is as shown in Embodiment 1, and the steps are as follows...

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Abstract

The invention provides a three-fulcrum single-scale redundant electronic belt scale and a working method. The three-fulcrum single-scale redundant electronic belt scale comprises a belt frame, whereina bearing frame is movably arranged on the belt frame, two ends of the belt frame are respectively provided with a first fixed cross beam and a second fixed cross beam, two ends of the first fixed cross beam are provided with a weighing sensor C and a weighing sensor B, a weighing sensor A is arranged in the center of the second fixed cross beam, and the weighing sensor A, the weighing sensor B and the weighing sensor C are connected with the movable bearing frame through connecting plates; and the movable bearing frame is further provided with a speed sensor, and final data can be obtained through calculation of the controller. The three-fulcrum single-scale redundant electronic belt scale has the advantages that the measurement precision is high, stress is uniform and stable, the unbalance loading resistance is high, and the measuring range is longer.

Description

technical field [0001] The invention relates to the technical field of weighing equipment, in particular to a three-support single-scale redundant electronic belt scale and a working method. Background technique [0002] Electronic belt scale is a commonly used instrument equipment for dynamic weighing of bulk materials. It mainly includes movable load-bearing frames, fixed beams, load cells, speed sensors, weighing controllers and other equipment. Key indicators of scale design and manufacture; in order to improve the accuracy of electronic belt scales, methods such as optimizing the structure of the scale body, increasing the length of the weighing section, and optimizing the measurement algorithm are generally used; in order to improve the reliability of the electronic belt scale, the stability of the scale body is generally improved , Using multiple parallel belt scale redundant measurement and other methods. [0003] At present, two methods are mainly used: direct bear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G11/04G01G23/01
CPCG01G11/04G01G23/01
Inventor 王庆河王祝辉
Owner 王祝辉
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