WO2018000802A1 - 冲板皮带秤及其称量方法 - Google Patents

冲板皮带秤及其称量方法 Download PDF

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Publication number
WO2018000802A1
WO2018000802A1 PCT/CN2017/000398 CN2017000398W WO2018000802A1 WO 2018000802 A1 WO2018000802 A1 WO 2018000802A1 CN 2017000398 W CN2017000398 W CN 2017000398W WO 2018000802 A1 WO2018000802 A1 WO 2018000802A1
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conveyor
load cell
punching
belt
punching plate
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English (en)
French (fr)
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梁跃武
员小龙
梅雪峰
靳树利
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SHANXI XINYUAN AUTOMATIC INSTRUMENT Corp Ltd
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SHANXI XINYUAN AUTOMATIC INSTRUMENT Corp Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G11/00—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers
    • G01G11/14—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers using totalising or integrating devices

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  • the invention relates to a belt scale, in particular to a belt scale which combines a belt conveyor and a force measuring punching plate to stably measure the bulk material.
  • the conveying method of bulk material is mainly transported by the belt conveyor.
  • the metering of the material conveyed by the belt conveyor is mainly measured by the belt scale.
  • the belt scale is installed on the belt conveyor, and the belt roller set is installed on the belt scale scale.
  • the roller group supports the conveying belt, the weighing scale is mounted on the belt scale, and a speed sensor is installed, and the two sensors respectively measure the weight of the material on the scale and the speed of the material running, and then, by the measuring instrument Calculate the flow rate of the material and obtain the cumulative amount of the material by integration.
  • the belt scale of this metering principle changes due to the change of the tension, softness and length of the conveyor belt with time, ambient temperature and conveying material flow rate, and has the defects of low measurement accuracy and poor stability.
  • the invention provides a punching belt scale and a weighing method thereof, and solves the technical problem that the existing belt has low measurement accuracy and poor stability.
  • a punching belt scale includes a conveyor belt conveyor, and a speed sensor is arranged on the conveyor belt conveyor, and conveying material is conveyed on a conveyor belt of the conveyor belt conveyor, and a force measuring weighing is arranged in front of the head roller of the conveyor belt conveyor
  • a load cell load cell is mounted on the load cell load cell frame
  • a punching plate is mounted on the force measuring end of the load cell load cell
  • the load cell load cell and the speed sensor are respectively electrically connected to the weighing instrument. connected.
  • the upper end of the punching plate is disposed above the upper end contour line of the impact material flow formed when the conveying material is impacted from the head of the conveyor belt to the punching plate, and the lower end of the punching plate is disposed at the head of the conveying material from the conveying belt conveyor Below the lower end contour of the impingement stream formed by the impact of the punching plate, the width of the punching plate is greater than the width of the conveying belt on the conveyor belt.
  • the inclination angle ⁇ of the conveyor belt conveyor is from minus 30 degrees to plus 30 degrees.
  • a buffer grill is provided on the impact surface of the punching plate.
  • the punching plate is a curved plate having a C-shaped cross section.
  • the punching plate is a grooved plate having a U-shaped cross section.
  • An explosion-proof housing is arranged on the load cell load sensor, an explosion-proof housing is arranged on the speed sensor, an explosion-proof housing is arranged on the weighing instrument, and the cable connecting the sensor and the weighing instrument is a flame-retardant cable.
  • a weighing method for a punching belt scale includes the following steps:
  • the first step is to set the speed sensor on the conveyor belt conveyor, set the conveying material on the conveyor belt of the conveyor belt conveyor, and set the force measuring load cell frame in front of the head roller of the conveyor belt conveyor.
  • a load cell load cell is mounted on the rack, a punching plate is mounted on the force measuring end of the load cell load cell, and the load cell load cell and the speed sensor are electrically connected to the weighing instrument respectively;
  • m be the total mass of the impact material passed after the material is impacted in the ⁇ T time
  • v is the belt running speed on the conveyor belt machine measured by the speed sensor
  • ⁇ is the horizontal inclination of the conveyor belt
  • v1 is the conveying
  • v1 is the conveying
  • v2 is the horizontal component of the velocity of the impact material after the impact material hits the punching plate
  • v2 0
  • the conveying material impacts the punching plate in the ⁇ T time.
  • the weighing instrument integrates the flow rate Q of the impact material obtained in the fourth step, and obtains the total amount of materials after the impact punching plate conveyed by the conveyor belt conveyor.
  • the invention realizes the accurate measurement of the amount of bulk material conveyed by the belt with a simple structure, has low maintenance cost, long service life, and avoids the influence of many factors of symmetric heavy metering.
  • Figure 1 is a schematic view of the structure of the present invention.
  • a punching belt scale includes a conveyor belt conveyor 1, a speed sensor 3 is disposed on the conveyor belt conveyor 1, and a conveying material 6 is conveyed on the conveying belt of the conveyor belt conveyor 1, and the head roller 2 of the conveyor belt conveyor 1 is transported
  • a force measuring load cell frame 8 is arranged in front of the load cell, and a load cell 4 is mounted on the force measuring load cell frame 8.
  • a punching plate 5 is mounted on the force measuring end of the load cell 4
  • the force weighing sensor 4 and the speed sensor 3 are electrically connected to the weighing instrument 7, respectively.
  • the upper end of the punching plate 5 is disposed above the upper end contour line of the impact material flow formed when the conveying material 6 is impacted from the head of the conveyor belt conveyor 1 to the punching plate 5, and the lower end of the punching plate 5 is disposed on the conveying material 6 Below the lower end contour of the impact material flow formed by the head of the conveyor belt conveyor 1 when the punching plate 5 is impacted, the width of the punching plate 5 is greater than the width of the conveying belt on the conveyor belt 1.
  • the inclination angle 9 of the conveyor belt conveyor 1 is from minus 30 degrees to plus 30 degrees.
  • a buffer grille is disposed on the impact surface of the punching plate 5 to extend the service life of the punching plate 5.
  • the punching plate 5 is a curved plate with a C-shaped cross section, which serves to converge the impact material flow and improve the accuracy of the metering.
  • the punching plate 5 is a grooved plate having a U-shaped cross section.
  • An explosion-proof housing is arranged on the load cell 4, an explosion-proof housing is arranged on the speed sensor 3, an explosion-proof housing is arranged on the weighing instrument 7, and the cable connecting the sensor and the weighing instrument 7 is a flame-retardant cable.
  • the invention is reliably used in an explosive environment.
  • a weighing method for a punching belt scale includes the following steps:
  • a speed sensor 3 is arranged on the conveyor belt conveyor 1
  • a conveying material 6 is arranged on the conveying belt of the conveyor belt conveyor 1
  • a load cell weighing sensor frame 8 is arranged in front of the head roller 2 of the conveyor belt conveyor 1.
  • a load cell 4 is mounted on the load cell rack 8
  • a punch 5 is mounted on the load end of the load cell 4, and the load cell 4 and the speed sensor 3 are respectively weighed.
  • the meters 7 are electrically connected together;
  • the second step is: F is the reaction force of the horizontal component of the impulse measured by the load cell 4 mounted on the punching plate 5, ⁇ T is the time when the material 6 is impacted by the punching plate 5, and the material 6 is transported in the ⁇ T time.
  • m be the total mass of the impact material passed after the material 6 is impacted by the punching plate 5 in the ⁇ T time
  • v The running speed of the belt on the conveyor belt 1 measured for the speed sensor 3
  • ⁇ is the horizontal inclination of the conveyor belt 1
  • the conveying material 6 impacts the punching plate 5 in the ⁇ T time
  • the weighing instrument 7 integrates the flow rate Q of the impact material obtained in the fourth step to obtain the total amount of materials after the impact punching plate 5 conveyed by the conveyor belt conveyor 1.
  • the invention adopts a simple, reliable and stable punching force measuring structure, avoids the mechanical structural factors affecting the accurate measurement of the belt, and the measured weight is the measuring force, and the weighing of the weighing which cannot be realized by the traditional belt scale is realized. Sex, suitable for accurate measurement of various bulk materials.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Conveyors (AREA)

Abstract

一种冲板皮带秤及冲板皮带秤的称量方法，冲板皮带秤包括输送皮带机（1），在输送皮带机（1）上设置有速度传感器（3），在输送皮带机（1）的输送皮带上输送有输送物料（6），在输送皮带机（1）的机头滚筒（2）的前方设置有测力称重传感器机架（8），在测力称重传感器机架（8）上安装有测力称重传感器（4），在测力称重传感器（4）的测力端安装有冲板（5），测力称重传感器（4）和速度传感器（3）分别与称重仪表（7）电连接在一起。冲板皮带秤及冲板皮带秤的称量方法解决了现有皮带秤存在的计量准确度低和稳定性差的问题，以简单的结构实现了对皮带输送的散状物料的准确计量。

Description

冲板皮带秤及其称量方法 技术领域
本发明涉及一种皮带秤，特别涉及一种将皮带输送机与测力冲板相结合后对散状物料进行稳定计量的皮带秤。
背景技术
目前，散状物料的输送方式主要是由皮带输送机输送，对皮带输送机输送物料的计量主要是通过皮带秤来计量的，皮带秤安装在皮带机上，皮带托辊组安装在皮带秤秤架上，托辊组支撑着输送皮带，皮带秤秤架上安装有称重传感器，并安装一个速度传感器，两种传感器分别测量出秤架上物料的重量和物料运行的速度，然后，由计量仪表计算出物料的流量，通过积分得到物料的累积量。但这种计量原理的皮带秤，由于输送皮带的张力、柔软度、长度等会随着时间、环境温度、输送物料流量的变化而变化，存在计量准确度低，稳定性差的缺陷。
发明内容
本发明提供了一种冲板皮带秤及其称量方法，解决了现有皮带称存在的计量准确度低和稳定性差的技术问题。
本发明是通过以下技术方案解决以上技术问题的：
一种冲板皮带秤，包括输送皮带机，在输送皮带机上设置有速度传感器，在输送皮带机的输送皮带上输送有输送物料，在输送皮带机的机头滚筒的前方设置有测力称重传感器机架，在测力称重传感器机架上安装有测力称重传感器，在测力称重传感器的测力端安装有冲板，测力称重传感器和速度传感器分别与称重仪表电连接在一起。
冲板的上端是设置在输送物料从输送皮带机的机头向冲板冲击时所形成的冲击物料流的上端轮廓线上方的，冲板的下端是设置在输送物料从输送皮带机的机头向冲板冲击时所形成的冲击物料流的下端轮廓线下方的，冲板的宽度大于输送皮带机上的输送皮带的宽度。
输送皮带机的倾角α的度数为负30度到正30度。
在冲板的冲击面上设置有缓冲格栅。
冲板是横断面为C形的弧形板。
冲板是横断面为U形的槽形板。
在测力称重传感器上设置有防爆壳体，在速度传感器上设置有防爆壳体，在称重仪表上设置有防爆壳体，连接传感器与称重仪表的电缆为阻燃电缆。
一种冲板皮带秤的称量方法，包括以下步骤：
第一步、在输送皮带机上设置速度传感器，在输送皮带机的输送皮带上设置输送物料，在输送皮带机的机头滚筒的前方设置测力称重传感器机架，在测力称重传感器机架上安装测力称重传感器，在测力称重传感器的测力端安装冲板，将测力称重传感器和速度传感器分别与称重仪表电连接在一起；
第二步、设：F为冲板上安装的测力称重传感器测到冲力的水平分力的反作用力，ΔT为输送物料冲击冲板的时间，输送物料在ΔT时间内冲击冲板，根据冲力计算冲量的公式可计算出冲量I：I＝-F×ΔT；
设：m为在ΔT时间内输送物料冲击冲板后所通过的冲击物料的总质量，v为速度传感器测量到的输送皮带机上的皮带运行速度，α为输送皮带机的水平倾角，v1为输送物料离开输送皮带机时速度的水平分量，即v1＝v×cosα，v2为输送物料冲击到冲板后，冲击物料的速度的水平分量，v2＝0，输送物料在ΔT时间内冲击冲板，根据动量变化计算冲量的公式可计算出冲量I：I＝m×(v2-v1)；根据以上两公式，推导出平衡式：F×ΔT＝m×v×cosα；
第三步、设：M为输送物料在输送皮带机的输送皮带上的单位长度的物料质量，输送物料在ΔT时间内冲击冲板的总质量为：m＝M×v×ΔT；设：Q为输送物料冲击冲板的冲击物料的流量，则Q＝v×M，得到m＝Q×ΔT；
第四步、将第二步得到的平衡式与第三步得到的公式进行合并，得到输送物料冲击到冲板上的冲击物料的流量Q：Q＝F/(v×cosα)；
第五步、称重仪表对第四步得到的冲击物料的流量Q进行积分运算，得到输送皮带机输送出的冲击冲板后的物料总量。
本发明以简单的结构实现了对皮带输送的散状物料量的准确计量，维护成本低，使用寿命长，避免了诸多因素对称重计量的影响。
附图说明
图1是本发明的结构示意图。
具体实施方式
下面结合实施例对本发明做详细的描述。
实施例1：
一种冲板皮带秤，包括输送皮带机1，在输送皮带机1上设置有速度传感器3，在输送皮带机1的输送皮带上输送有输送物料6，在输送皮带机1的机头滚筒2的前方设置有测力称重传感器机架8，在测力称重传感器机架8上安装有测力称重传感器4，在测力称重传感器4的测力端安装有冲板5，测力称重传感器4和速度传感器3分别与称重仪表7电连接在一起。
冲板5的上端是设置在输送物料6从输送皮带机1的机头向冲板5冲击时所形成的冲击物料流的上端轮廓线上方的，冲板5的下端是设置在输送物料6从输送皮带机1的机头向冲板5冲击时所形成的冲击物料流的下端轮廓线下方的，冲板5的宽度大于输送皮带机1上的输送皮带的宽度。
输送皮带机1的倾角9的度数为负30度到正30度。
在冲板5的冲击面上设置有缓冲格栅，以达到延长冲板5的使用寿命。
冲板5是横断面为C形的弧形板，起到收敛冲击物料流的作用，提高计量的准确度。
冲板5是横断面为U形的槽形板。
在测力称重传感器4上设置有防爆壳体，在速度传感器3上设置有防爆壳体，在称重仪表7上设置有防爆壳体，连接传感器与称重仪表7的电缆为阻燃电缆，使本发明在易爆的环境中可靠使用。
一种冲板皮带秤的称量方法，包括以下步骤：
第一步、在输送皮带机1上设置速度传感器3，在输送皮带机1的输送皮带上设置输送物料6，在输送皮带机1的机头滚筒2的前方设置测力称重传感器机架8，在测力称重传感器机架8上安装测力称重传感器4，在测力称重传感器4的测力端安装冲板5，将测力称重传感器4和速度传感器3分别与称重仪表7电连接在一起；
第二步、设：F为冲板5上安装的测力称重传感器4测到冲力的水平分力的反作用力，ΔT为输送物料6冲击冲板5的时间，输送物料6在ΔT时间内冲击冲板5，根据冲力计算冲量的公式可计算出冲量I：I＝-F×ΔT；
设：m为在ΔT时间内输送物料6冲击冲板5后所通过的冲击物料的总质量，v 为速度传感器3测量到的输送皮带机1上的皮带运行速度，α为输送皮带机1的水平倾角，v1为输送物料6离开输送皮带机1时速度的水平分量，即v1＝v×cosα，v2为输送物料6冲击到冲板5后，冲击物料的速度的水平分量，v2＝0，输送物料6在ΔT时间内冲击冲板5，根据动量变化计算冲量的公式可计算出冲量I：I＝m×(v2-v1)；根据以上两公式，推导出平衡式：F×ΔT＝m×v×cosα；
第三步、设：M为输送物料6在输送皮带机1的输送皮带上的单位长度的物料质量，输送物料6在ΔT时间内冲击冲板5的总质量为：m＝M×v×ΔT；设：Q为输送物料6冲击冲板5的冲击物料的流量，则Q＝v×M，得到m＝Q×ΔT；
第四步、将第二步得到的平衡式与第三步得到的公式进行合并，得到输送物料6冲击到冲板5上的冲击物料的流量Q：Q＝F/(v×cosα)；
第五步、称重仪表7对第四步得到的冲击物料的流量Q进行积分运算，得到输送皮带机1输送出的冲击冲板5后的物料总量。
本发明以简单、可靠和稳定的冲板测力的结构，避开了皮带称上影响其准确计量的机械结构因素，变测重量为测冲力，实现了传统皮带秤不能实现的称重的稳定性，适合对各种散状物料的准确计量。

Claims (8)

  1. 一种冲板皮带秤，包括输送皮带机(1)，在输送皮带机(1)上设置有速度传感器(3)，在输送皮带机(1)的输送皮带上输送有输送物料(6)，其特征在于，在输送皮带机(1)的机头滚筒(2)的前方设置有测力称重传感器机架(8)，在测力称重传感器机架(8)上安装有测力称重传感器(4)，在测力称重传感器(4)的测力端安装有冲板(5)，测力称重传感器(4)和速度传感器(3)分别与称重仪表(7)电连接在一起。
  2. 根据权利要求1所述的一种冲板皮带秤，其特征在于，冲板(5)的上端是设置在输送物料(6)从输送皮带机(1)的机头向冲板(5)冲击时所形成的冲击物料流的上端轮廓线上方的，冲板(5)的下端是设置在输送物料(6)从输送皮带机(1)的机头向冲板(5)冲击时所形成的冲击物料流的下端轮廓线下方的，冲板(5)的宽度大于输送皮带机(1)上的输送皮带的宽度。
  3. 根据权利要求1所述的一种冲板皮带秤，其特征在于，输送皮带机(1)的倾角α(9)的度数为负30度到正30度。
  4. 根据权利要求1所述的一种冲板皮带秤，其特征在于，在冲板(5)的冲击面上设置有缓冲格栅。
  5. 根据权利要求1所述的一种冲板皮带秤，其特征在于，冲板(5)是横断面为C形的弧形板。
  6. 根据权利要求1所述的一种冲板皮带秤，其特征在于，冲板(5)是横断面为U形的槽形板。
  7. 根据权利要求1所述的一种冲板皮带秤，其特征在于，在测力称重传感器(4)上设置有防爆壳体，在速度传感器(3)上设置有防爆壳体，在称重仪表(7)上设置有防爆壳体，连接传感器与称重仪表(7)的电缆为阻燃电缆。
  8. 一种冲板皮带秤的称量方法，包括以下步骤：
    第一步、在输送皮带机(1)上设置速度传感器(3)，在输送皮带机(1)的输送皮带上设置输送物料(6)，在输送皮带机(1)的机头滚筒(2)的前方设置测力称重传感器机架(8)，在测力称重传感器机架(8)上安装测力称重传感器(4)，在测力称重传感器(4)的测力端安装冲板(5)，将测力称重传感器(4) 和速度传感器(3)分别与称重仪表(7)电连接在一起；
    第二步、设：F为冲板(5)上安装的测力称重传感器(4)测到冲力的水平分力的反作用力，ΔT为输送物料(6)冲击冲板(5)的时间，输送物料(6)在ΔT时间内冲击冲板(5)，根据冲力计算冲量的公式可计算出冲量I：I＝-F×ΔT；设：m为在ΔT时间内输送物料(6)冲击冲板(5)后所通过的冲击物料的总质量，v为速度传感器(3)测量到的输送皮带机(1)上的皮带运行速度，α为输送皮带机(1)的水平倾角，v1为输送物料(6)离开输送皮带机(1)时速度的水平分量，即v1＝v×cosα，v2为输送物料(6)冲击到冲板(5)后，冲击物料的速度的水平分量，v2＝0，输送物料(6)在ΔT时间内冲击冲板(5)，根据动量变化计算冲量的公式可计算出冲量I：I＝m×(v2-v1)；根据以上两公式，推导出平衡式：F×ΔT＝m×v×cosα；
    第三步、设：M为输送物料(6)在输送皮带机(1)的输送皮带上的单位长度的物料质量，输送物料(6)在ΔT时间内冲击冲板(5)的总质量为：m＝M×v×ΔT；设：Q为输送物料(6)冲击冲板(5)的冲击物料的流量，则Q＝v×M，得到m＝Q×ΔT；
    第四步、将第二步得到的平衡式与第三步得到的公式进行合并，得到输送物料(6)冲击到冲板(5)上的冲击物料的流量Q：Q＝F/(v×cosα)；
    第五步、称重仪表(7)对第四步得到的冲击物料的流量Q进行积分运算，得到输送皮带机(1)输送出的冲击冲板(5)后的物料总量。
PCT/CN2017/000398 2016-06-27 2017-06-22 冲板皮带秤及其称量方法 Ceased WO2018000802A1 (zh)

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CN112985551A (zh) * 2021-02-06 2021-06-18 安徽新华学院 一种基于虚拟仪器的电子皮带秤电气参数测试方法
AT523415B1 (de) * 2020-08-05 2021-08-15 Ape Man Gmbh Vorrichtung zur ermittlung von wenigstens einer vorgebbaren physikialischen eigenschaft von gütern in einem materialstrom
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