The supporting length of the boring bar is prolonged and the hardness of the boring bar is greatly increased by the guide sleeve.
由于增加了导套，延长了镗杆的支撑长度，大大增强了镗杆的刚度。
Dropping bucket cover holes (4) are arranged on the dropping bucket cover, and supporting parts of the sleeve rods can freely move in the dropping bucket cover holes.
滴斗盖上设有滴斗盖孔(4)，套杆的支撑部分能在该滴斗盖孔内自由移动。
The fixing sleeve is made of an elastic material, and the two ends of the support bar and the fixing sleeve are in slip connection with the supporting transverse rods.
紧固套由弹性材料做成，支撑杆与紧固套两端与支承它们的横杆滑动连接。
应用推荐