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在减震造型机上,由于两个物体相对撞击作用而使型砂紧实。如果在撞击的一瞬间,上下两个撞击体动量的矢量相等 m_1V_1=m_2V_2那么撞击力就不传到基础上。在撞击瞬间,没有附加的动载荷的力,并不说明在两次撞击之间基础所承受的载荷是恒定。因为下面的撞击体(3)(图1)是进行摆动,而弹簧(4)是受压缩的,在一个循环内基础上载荷的变化是和弹簧的压缩成比例的。在活动连接处的摩擦液压缸的漏损及液体的可压缩性都对由弹簧
In the shock molding machine, due to the relative impact of two objects so that the sand compacting. If, at the moment of impact, the vectors of momentum of the upper and lower two striking bodies are equal to m_1V_1 = m_2V_2 then the impact force is not transmitted to the foundation. At the moment of impact, the force without additional dynamic load does not indicate that the load on the foundation between the two impacts is constant. Because the lower impact body (3) (Fig. 1) oscillates and the spring (4) is compressed, the change in load over a cycle is proportional to the compression of the spring. Leakage of the friction cylinder and the compressibility of the fluid at the articulated connection are all against the spring