一种基于PLC的新型重量安全保护装置的探讨与研制  

Discussion and Development of a New Weight Safety Protection Device Based on PLC

作　　者：厉红娅[1] 胡胜方 Li Hongya;Hu Shengfang

机构地区：[1]水利部产品质量标准研究所 [2]杭州江河机电装备工程有限公司,310012

出　　处：《工程机械》2024年第8期45-51,I0013,共8页Construction Machinery and Equipment

摘　　要：为了解决超载限制器安装完毕以及使用一段时间后出现起吊负载的实际重量与超载限制器实时显示的重量数据不匹配的现象,需要利用标准试块对仪表进行重量重新校准的问题,分析现有超载限制器的相应技术方法,提出利用PLC、压力传感器和触摸屏开发设计一种新型重量保护装置来解决上述问题。基于此阐述了装置的设计原理,描述装置的硬件组成和装置软件的开发流程以及操作步骤。试验结果表明,该新型重量保护装置可以实现超载限制器安装完毕以及数据显示不准后无需借用标准试块进行重量重新校准就可以投入使用的问题,同时进一步为现场节约了由于重新校准仪表产生的人力、物力、时间与财力等使用成本。To solve the problem of mismatch between the actual weight of the lifted load and the real-time weight data displayed by the overload limiter after installation and use for a period of time,it is necessary to use a standard test block to recalibrate the weight of the instrument,the corresponding technical methods of existing overload limiters are analyzed,and it is proposed to develop and design a new weight protection device by using a PLC,a pressure sensor and a touch panel to solve the said problem.On this basis,the design principle of the device is elaborated,and the hardware composition of the device and the development process of the device software as well as the operation steps are described.The test results show that the new weight protection device can realize weight recalibration for reservice without using a standard test block after the installation of the overload limiter and the inaccuracy of the data display,and at the same time,it further saves use costs of human resources,material resources,time and financial resources arising from the recalibration of the instrument on site.

关 键 词：PLC 压力传感器 触摸屏 重量保护装置 

分 类 号：TH21[机械工程—机械制造及自动化]