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本文在总结现有有关文献正确理论的基础上,对动量矩概念及动量矩理论,提出了一些新的观点,明确地提出了在静坐标系中的动量与在动坐标系中的动量分别对于任一动点(牵连点)O′的动量矩定理,并论述了其应用条件。碰撞与冲击现象,在矿山机械中经常出现,且会产生巨大的碰撞力,而在机器中则引起很大的冲击应力,随着机器的振动,它将严重地影响着机器的正常工作和寿命,因此,应尽可能设法消除或减弱它。本文以装岩机为例,应用上述理论,论述了这些现象对它的危害及消减措施。
On the basis of summarizing the existing correct theories of literature, this paper puts forward some new ideas on the concept of momentum moment and the theory of moment of momentum, and puts forward clearly that the momentum in static coordinate system and the momentum in active coordinate system are respectively Moment of Moment Theorem for any moving point (point of contact) O ’, and discusses its application conditions. Collision and impact phenomena, often occur in mining machinery, and will have a huge collision force, while in the machine is caused by a great impact stress, with the machine vibration, it will seriously affect the normal operation of the machine and life Therefore, whenever possible, try to eliminate or weaken it. In this paper, rock loader as an example, the application of the above theory, discusses the harm of these phenomena and its mitigation measures.