皮带秤监控组态设计Word下载.docx

1、但机械式皮带秤在其长达六十年左右的发展过程中也为皮带秤的使用积累了丰富的应用经验，没有机械式皮带秤的昨天，就没有电子皮带秤的今天。回顾已经走过的一百年历史，我们看到皮带秤的应用已经越来越广泛，并且在各类涉及动态称重系统的衡器中占据主导地位。展望未来，皮带秤的发展应该集中体现在以下几个方面： 高精确度、高可靠性的新型速度传感器及称重传感器的应用；类似倾角传感器、位置传感器等新检测内容的传感器将加入到皮带秤的应用中；二次仪表的智能化、总线化、无线传输化；皮带秤新型检定方式的开发和实际应用；皮带秤称重理论的深入研究。关键词 皮带秤； 称重； 传感器； 组态AbstractAlong with spr

2、ead a feeling machine, electronics technique technical with tiny machine of rising, weighed a technique to get a quick development, weigh at the numeral turn, the intelligence turn etc. contain substantial progress and research and development which weigh device also got into a segment. Belt weight

3、Heng machine is also conduct and actions a kind of newly arisen and high technique industry but be subjected to an international community of widespread concern, use a new technique, develop various auto weigh system, raise the accurate degree that dynamic state weigh, strengthen the network functio

4、n is the point of development. Heng machine the industry personal beginning of our country has scale, but upscale time the heng machine product technique the level fall behind, have an independent intelligent property right of upscale time Heng machine product to development our country of the Heng

5、machine industry have important meaning.Along with spread a feeling machine technique, the technical development of the electronics appearance, can outputted the speed of telecommunication number to spread a feeling machine and weighed to spread a feeling machine to quickly replace correspond of the

6、 machine type leather belt steelyard organization, but to the speed, weight signal carry on enlarging a processing and carry out various operations can put in the electronics appearance completion, measured accuracy to raise, the steelyard structure simplified, so electronics leather belt steelyard

7、quickly and completely replaced the machine type leather belt steelyard. But the machine type leather belt steelyard was also the usage backlog of leather belt steelyard in it as long as around 60 years of the development process abundant of applied experience, there is no yesterday of machine type

8、leather belt steelyard, have no today of electronics leather belt steelyard. 100 calendar histories that the review has been already walk through, we see the application of leather belt steelyard having been more and more extensive, and occupying predominance position in every variety involve the He

9、ng machine that the dynamic state weighs system. Prospect future, the development of leather belt steelyard should concentrate now of body following few aspectses: The new speed of high accuracy, high credibility spreads a feeling machine and weighs an application of spread the feeling machine; The

10、similar Qing Cape spreads a feeling machine, position to spread feeling machines etc. lately examines the spread of contents feeling machine and will join the application of leather belt steelyard; Two intelligences of appearances turn and the total line turn and the wireless deliver to turn; The de

11、velopment of the leather belt steelyard new examination method with physically applied; The leather belt steelyard weigh theoretical of thorough research.Keyword Leather belt steelyard； weigh； spread a feeling machine1.皮带秤简介1.1最初的皮带秤1908年，美国一个年轻人赫尔伯特梅里克发明了一种皮带输送机使用的城中设备，那是根据皮带速度和重量用机械方法运行无聊舒服量计算的世界上

12、第一胎动态称重设备，这一发明完全改变了原有测量固体物料流量的方法。这是根据重力测量固体物料流量的设备后来被称为梅里克型机械式皮带秤。1.2皮带秤的分类滚轮皮带秤由重力传递系统、滚轮、计数器和速度盘组成（图1 ）。速度盘转速正比于皮带速度。滚轮滚动的角速度正比于皮带上通过的物料量。滚轮在速度盘上滚动的位置由物料的重力大小来调整。当皮带上没有物料时，滚轮靠近速度盘中心，转速为零，计数器不累计；当皮带上有物料时，滚轮随着重力变大向周边移动，并带动计数器记下皮带上通过的物料总量。电子皮带秤使用最广泛的皮带秤。由承重装置、称重传感器、速度传感器和称重显示器组成。称重时，承重装置将皮带上物料的重力传递到称

13、重传感器上，称重传感器即输出正比于物料重力的电压（mV）信号，经放大器放大后送模数转换器变成数字量A，送到运算器；物料速度输入速度传感器后，速度传感器即输出脉冲数B，也送到运算器；运算器对A、B进行运算后，即得到这一测量周期的物料量。对每一测量周期进行累计，即可得到皮带上连续通过的物料总量。电子皮带秤承重装置的秤架结构主要有双杠杆多托辊式、单托辊式、悬臂式和悬浮式 4种。双杠杆多托辊式和悬浮式秤架的电子皮带秤计量段较长，一般为28组托辊，计量准确度高，适用于流量较大、计量准确度要求高的地方。单托辊式和悬臂式秤架的电子皮带秤的皮带速度可由制造厂确定，适用于流量较小的地方或控制流量配料用的地方。1

14、.3称重显示称重显示器主要有数字显示和汉字显示两种，汉字显示为数字显示的升级产品。称重显示器有累计和瞬时流量显示，具有自动调零、半自动调零、自检故障、数字标定、流量控制、打印等功能。汉字显示除此之外还能显示速度。汉字显示在操作时有功能显示，能更好的帮助使用人员操作。电子皮带秤，由秤架，测速传感器，高精度测重传感器，电子皮带秤控制显示仪表等组成，能对固体物料进行连续动态计量1.4皮带秤工作原理及过程我们要实现的是八路自动皮带秤配料的控制系统。该系统共有八路上料，每一路的上料都是有一定的配比，受到各个参数的约束。 它的基本工作原理是：当系统开始运行，八路上料系统根据需要开始上料，每一路的上料与否以

15、及根据产品配比的要求下料多少，是受PLC控制的。每一路上料的实际多少是由称重传感器测量，将测得的数据送到PLC由预先使用STEP7编写好的程序进行处理，简单的说就是相乘的关系，这样可以得到每一路每一个小时下料的吨位。这个每小时的吨位与要求的吨位对比形成负反馈，反馈到PLC，经过预置程序的控制以及使用PID控制算法处理调节执行机构变频器控制电动机，使整个系统达到预先的要求，从而生产出合格的产品。这就是整个皮带秤配料系统的工作原理的简单介绍。1.5皮带秤控制系统的基本功能和组成1.5.1系统的基本功能监控功能：对皮带称配料过程的瞬时流量、日累计、月累计、年累计等参数进行检测和监视；画面显示：通过计算机显示器可显示配料过程中有关控制参数的运行状况，以及显示实时配料曲线和表格；通讯功能：工控机与PLC和