四川都江木工机床厂最近制成一台MB904有消声措施的木工平压刨床。消声措施是:在靠平刨刀轴附近的前后工作台,各钻三排φ10毫米的小孔;第一排21个,第二排20个,第三排19个。孔呈三角形排列,对称均匀分布,穿孔率22%。在刀轴转速5,000转/分时产生的高速气流,通过工作台的孔降低气? Sichuan Du Jiang Woodworking Machine Tool Plant recently made a MB904 anechoic measures woodworking planer. Noise reduction measures are: in front and back by the planer axis near the table, each drilling three rows of φ10 mm holes; the first row of 21, the second row of 20, the third row of 19. Holes are arranged in a triangle, symmetrically evenly distributed, perforated rate of 22%. High-speed airflow generated at 5,000 rpm at the spindle speed reduces air flow through the holes in the table