在冶金矿山中,使用KD-100型水平钻机极为普遍,由于井下供风不均衡,风压不稳定,必须采用手轮给进加压。在复杂地层中钻进,经常发生卡钻事故,同样需要采用手轮进行强拉硬顶来处理事故。这样就使原设计配用的铜质蜗轮副受扭力过大,蜗轮轴产生变形,蜗轮早期磨损,蜗轮副大量损耗,每台每月更换蜗轮达15个,既严重地影响生产也增加维修费用。为此,我们通过对原机的给进机构进行分析,重新设计,研制了螺旋齿轮代替原蜗轮副。从1980年8月23日装 In the metallurgical mine, the use of KD-100-type horizontal drilling rig is extremely common, due to uneven supply of underground gas, wind pressure instability, hand pressure must be used to feed. Drilling in complex formations, frequent sticking accidents, also require the use of hand-wheel hard top to handle the accident. This will make the original design with the copper worm gear by torque is too large, deformation of the worm shaft, worm wear early, a large number of worm gear wear, each month to replace the worm up to 15, both seriously affect the production and maintenance costs . To this end, we analyzed the original machine feeding mechanism, redesigned, developed a spiral gear instead of the original worm gear. From August 23, 1980 loading