斗杆联接器是4米~3电铲铲斗与铲杆联接的部件,结构复杂、重量大,不易加工。改进前的配合部分见图1。斗杆前端与联接器是通过大花帽螺丝联接的。斗杆前端的一侧与 DD′面接触,另一侧与压板接触,通过8个小花帽螺丝压紧。斗杆上下两面与联接器32毫米宽的配合面相配合,其余宽度的大部分与上下瓦坐相接触,瓦坐也是通过小花帽螺丝联接的。生产实践证明用销轴和螺丝将铲杆与联接 Stick coupler is 4 m ~ 3 electric shovel bucket and shovel rod coupling components, complex structure, weight, easy processing. Improve the cooperation with the part shown in Figure 1. The front end of the arm and the coupler are bolted with a large flower cap screw. The front end of the arm is in contact with the DD ’surface and the other side is in contact with the platen, pressed by 8 small hat screws. The upper and lower sides of the stick are mated with the 32 mm wide mating face of the coupler, most of the rest of the width is in contact with the upper and lower shingles, and the sash is also screwed through the small hat. Production practice proved with the pin and screw the shovel rod and coupling