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影响地磅精准度原因有哪些?
作者:金马汽车横地磅厂家 发布日期:2018-10-19 09:51

  地磅的安装过程,主要是指称重框架、称重感应器等地磅部件的安装,这直接关系到能否达到设计要求、并保证计量准确和长期稳定性。因此,对安装过程的质量控制以及安装工艺应引起高度重视。
影响地磅精准度原因有哪些?
  地磅称重感应器的安装以及称重感应器与称重框架的连接,是地磅安装中最关键的部分。有资料显示,它的影响可使地磅的准确度从0.01%一0.02%降为0.05%一0.1%。它的安装除了要克服振动、偏载等诸多因素外,更重要的是必须确保重力准确地使传感器受力,并且作用力是在传感器的轴心。不论是采用弹簧片、钢丝绳或球面等传感器连接方式,还是选择一只或者两只及两只以上组合的传感器称重方式,都要使传感器受力角度垂直,而目每一只都必须以相同的角度垂直,使作用力落在传感器的轴心上。
 
  地磅称重框架一般由承载重力框架和吊带或杠杆等组成。安装时,如果地磅称重框架的中心线和输送机的纵向中心线没对齐,存在着偏离或有夹角,则地磅的受力就不均衡,皮带在称量段易发生跑偏,也直接影响地磅的准确计量。另还应注意称重框架须略高出输送机架一定距在垫高的同时必须进行横向水平校正。
 
  地磅安装过程的控制实质上也是安装工艺的控制过程,正确的工艺流程、严谨细致的工艺作风是地磅安装质量的保证。如果在连接过程中,不注意结合面的平整、有过多的防腐油漆或其他非刚性材料的存在,将会导致称重框架、称重托辊等受力部件在有载情况下的变形或位移,严重的会引起地磅的振动,尤其是称重感应器与称重框架之间的连接,直接影响力的正确传递,使称重系统的测量误差增大。因此,在安装连接这些部件时,须将开孔时的毛刺、割渣彻底清除十净,秤架和机架结合面应有一定的光洁度,使其连接紧密。

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