文中还用这种新方法来确定机构的平衡重,并用SUMT外点法求出了最优解。
The paper presents a designing method for the tail—end balance weight of the swing—arm of the "Crane" type portal cranes.本文向读者推荐港口鹤式起莺机摇臂尾端平衡重设计方法。
balance weight set free fall emergency braking device, which can realize auto control load loss protection, when the wellhead end accidental loss of load, balance weight free fall.平衡重设置自由落体紧急制动装置,可实现井口端意外失载后平衡重自由落体坠落不能人控,却能自控失载保护的万无一失。



