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货车淋雨试验检测线的参数详解


2019-11-15


根据QC/T900-1997汽车整车产品质量检验评定方法,货车淋雨试验检测线主要设计参数有降雨强度、淋雨标准面积、喷射压力等。

1) 淋雨标准面积:由喷淋长度和app江南 检测线宽度决定,即:喷淋长度L,室体宽度M,面积S=LM。

2) 喷射压力GB/T12480-1990规定喷射压力为69~147kPa

3) 降雨强度:指单位时间内降雨量。货车淋雨试验检测线降雨强度要求:车身顶部的淋雨强度为15~19mm/min;车侧面的淋雨强度为11~15mm/min。

app江南 检测线设计要点:

淋雨线的设计主要根据双板链输送机选型、淋雨试验区尺寸、水泵、喷嘴数量及布置、储水池等来确定。

app江南

1. 减速机选型计算

电动机功率:P=PAN=FuvN

式中:P——电动机功率;

Fu——牵引力,kN;

N——安全系数,取2.2;

PA——传动链轮所需功率;

V——运动速度,m/s。

转矩=(链条重+链板重+工件重量)×9.8N/kg×0.1(摩擦系数)×d/2

输送板链采用双板链结构,垂直地面返回。线体两端设张紧站、驱动站各一个。

2. 货车淋雨试验检测线系统

app江南 检测线的系统采用两台泵,一台正常淋雨使用,一台备用。当正常使用的泵出现故障时,可人工切换到备用水泵上进行工作。水泵的出口压力可调节,淋雨时管理系统压力为69~147kPa。水从吸水池内不断加入主管路,通过过滤、流量调节进入淋雨管路,通过喷嘴射向车体表面,喷射出的水经过汇集流入吸水池,经过过滤后循环使用,定期更换。货车淋雨试验检测线系统的循环水管理从水泵到过滤器一段用镀锌钢管,从过滤器到喷嘴一段用不锈钢管。货车淋雨试验检测线系统的喷嘴沿淋雨室顶部之间的间距为600mm,喷嘴选用不锈钢可调球形喷嘴,该喷嘴具有易清理、更换方便的特点,淋雨设备侧面、上面喷淋管路有单独的阀进行控制。

岳信-专注于淋雨试验机的研发和生产,期待与您的每一次沟通。

本文为江南APP官方下载苹果版安装 原创文章,未经许可,不得转载。

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