论文部分内容阅读
一、调平衡准备工作在调平衡前,将仪表的外壳抽出,用镊子将仪表指针整理平直,平衡锤杆与指针的夹角应对称,燕尾角度应在60±5°范围内。然后仪表自水平位置稍向后倾5°～10°,若指针下垂,则平衡锤的重力力矩较小,平衡锤应后移;仪表自水平位置稍向前倾5°～10°,若指针向上翘,则平衡锤的重力力矩较大,平衡锤应向前移。粗略调整后,把仪表套进调平衡专用的仪表外壳(见图1,单位mm),锁紧。这种外
First, the balance of preparatory work Before adjusting the balance, the instrument shell out, tweezers instrument pointer flat, the angle between the balance hammer and the pointer should be symmetrical, dovetail angle should be within 60 ± 5 °. Then the instrument slightly backward tilt 5 ° ~ 10 ° from the horizontal position, if the pointer droops, then the gravity moment of the counterweight is smaller, the counterweight should move backward; the instrument tilts forward slightly from the horizontal position 5 ° ~ 10 °, if the pointer Upturned, the weight moment of the counterweight is larger, and the counterweight should move forward. Rough adjustment, the instrument set into the balance of special instrumentation shell (see Figure 1, in mm), locking. This kind of outside