动臂销(图1 a),是 HW-1型打夯机的易损件,磨损后造成整机工作不协调,噪音增大,并会引起销座孔磨损。我们分析其原因主要是由销子“啃边”引起在孔中摆动或旋转造成的(图1c)。现改为图1b 形式,将销子与锁片变整体式,经一年多使用效果良好。它根除了“啃边”现象,延长寿命,且制作简单、拆装方便,受到维修使用人员的欢迎。整体式动臂销制作步骤:1.按配合要求车好销轴,留焊接坡口与定位台阶(见图2);2.将锁片钻孔、攻丝;3.将锁片与销子焊为一体,注意两者垂 The boom pin (Fig. 1a) is the wearing part of the HW-1 type ramming machine. After the wear, the work of the whole machine becomes inconsistent, the noise increases, and the pin hole becomes worn. We analyze that the reason is mainly caused by the pin “swinging” caused by the swing or rotation in the hole (Figure 1c). Now it is changed to the form of Figure 1b. The pin and the locking piece are changed into an integral type, and the effect is good after more than one year. It eradicates the phenomenon of “bending side”, prolongs the life span, and is simple to make, easy to disassemble and install, and is welcomed by service personnel. Integral type of boom pin making steps: 1. According to the requirements of the cooperation, the car is well pinned, and the welding bevel and the positioning step are left (see Figure 2); 2. The locking piece is drilled and tapped; 3. The locking piece and the pin are Welding as one, pay attention to both down