楼主: lovetsing
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[挖掘机] 有的挖掘机大臂油缸下面有个阀块是什么功能
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IP卡
狗仔卡
发表于 2015-4-8 23:16:16
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防爆阀，防止胶管爆掉后动臂下落的
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管路防爆阀，欧洲要求挖掘机大臂管子破裂时，下降的速度要在安全范围内。
ISO 8643:1988 Excavators, with lifting devices for >1000 kg of load, needs a safety system on the boom cylinders. The load speed (< 200 mm/s) may double itself with hose burst maximally. The drop rate of the load shall not exceed 10 mm/s. The operation of the device shall not detract from the normal response and stability. The valve has to be fitted directly on the cylinder – without hose | |
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大臂保持阀，你可以网上搜搜，比平衡阀多集成了溢流阀和先导阀芯，功能差不多。
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防爆管阀， 像Oil Controll
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大臂保持阀！防止出现留臂！
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应该是防爆阀，但是有谁知道它跟平衡阀的区别？
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应该是防爆阀，挖机调速都是用阀芯，很少用平衡阀，
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