我部根据钻砖墙的特点,利用HZ-50A型行星式高频插入式振动器改制成功了新型的钻孔工具(图2),经过使用,性能良好。钻一只φ22深240毫米实心砖墙孔,只需15秒,比电钻提高工效10～15倍,而且劳动强度低,孔的质量好,不破坏墙体,机体重量轻,结构简单,使用方便安全,造价低,具有良好的经济效果。但由于轴承在高速转动中无法散热,故不宜长期连续使用,有待改进。 In accordance with the characteristics of the drilled brick wall, our department successfully modified the new drilling tool using the HZ-50A Planetary High-frequency Insert Vibrator (Figure 2). After use, the performance is good. Drilling a φ22 deep 240mm solid brick wall hole, only 15 seconds, than the electric drill to improve the efficiency of 10 to 15 times, and low labor intensity, the hole is of good quality, does not destroy the wall, the body is light, simple structure, easy to use Safe, low cost, with good economic results. However, since the bearing cannot dissipate heat during high-speed rotation, it is not suitable for long-term continuous use and needs improvement.