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在机器中使用螺栓和螺帽来充当联接零件是极其普遍的。由于所有的联接螺纹设备,它们的导角小于摩擦角(例如:根据OCT HΚΤΠ32 M16～M68的导角α=2.5～15°,而摩擦角ρ=5～6°),因此在静止的时候是能够满足自锁条件的。但是所能自锁条件(α<ρ)只是对静止的工作条件(静载荷)下才是正确的。在动载荷的作用下,螺纹接触面间的摩擦力减少了,这样将曹引起在螺帽和螺栓间的相对位移,最后甚至会使螺帽飞去。这种情况在高速转动的机器中是非常危险的,它不但会损坏机器本身,同时
It is extremely common for bolts and nuts to act as coupling parts in the machine. Due to all the threaded coupling devices, their lead angle is less than the friction angle (for example, the lead angle α = 2.5 to 15 ° and the friction angle ρ = 5 to 6 ° according to OCT H KT Π32 M16 to M68), so at standstill To meet the conditions of self-locking. However, the self-locking condition (α <ρ) is only correct for static operating conditions (static load). Under the action of dynamic load, the friction between the thread contact surfaces is reduced, which will cause the relative displacement between the nut and the bolt and eventually the nut to fly. This situation is very dangerous in high-speed rotating machine, it will not only damage the machine itself, at the same time