Abstract
With the development of social economy, hydraulic drilling machine has been widely used in the tunnel bridge, water conservancy projects and mining. In the process of construction, the drill rod of the hydraulic rock borer in drilling perforating process will produce deviation. It is often caused by the drilling efficiency and reduces the drilling hole scrap, seriously hindered the development of construction technology of drilling and blasting. Through the hydraulic drilling machine drill rod in the drilling cutting process of force analysis, drill rod in horizontal and vertical direction of the mechanical model are established. The relationship between the drill rod force and deflection of drilling in the drilling process is derived. At the same time, build ADAMS mechanical model, and the drilling process is simulated to find the relationship between the depth of drilling and the offset and offset angle. On this basis, the mechanical mechanism of borehole deviation of hydraulic rock drill is clarified, which provides a theoretical basis for the hydraulic rock drill hole deviations.
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