为了防止摇臂钻床伤人事故,我厂试制成功了摇臂钻床安全防护装置。该装置的工作原理是:人体的某一部位被钻头绞住后,人体将随钻杆旋转自然前倾;汉碰触到装在钻杆下方左侧的安全碰杆时,即带动拨盘旋转,拨盘触动紧急开关,切断钻床电机主回路,并接通电机制动回路。电机制动采取反 In order to prevent the radial arm drilling accident wounding, I plant trial success rocker drilling safety protection device. The working principle of the device is that when a certain part of a human body is hanged by a bit, the human body will naturally lean forward as the drill pipe rotates; when the Han touches the safety touch rod mounted on the left side below the drill pipe, the dial rotates , The dial touches the emergency switch, cut off the main circuit of drilling machine motor, and connect the motor brake circuit. Motor brake to take counter