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The strength testing method and accepting condition of protective structures on narrow-track wheeled agricultural and forestry tractors—Part 4:Dynamic testing method of rear mounted ROPS
MOD 农业和林业拖拉机官方规则组织(OECD)2005年颁布的试验标准规则7 OECD Code 7:2005
全国拖拉机标准化技术委员会
GB/T 21956的本部分规定了农业、林业窄轮距轮式拖拉机后置式防护装置的动态试验方法和验收条件。
GB/T 21956的本部分适用于具有两轴的充气轮胎拖拉机,其前轴和后轴最低点的离地间隙不大于600 mm;对前轮或后轮装有较大尺寸轮胎的,无论轮距是固定的或可调的,其最小轮距应不大于1 150 mm;拖拉机空载质量(包括防护装置和生产厂家提供的最大轮胎)大于600 kg,如为双向行驶拖拉机则应同时小于3 000 kg。
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