Qz3.5型钻机是我国研制的第一台潜入式竖井钻井机。该钻机由山东煤研所主持在南屯煤矿南风井进行表土钻头工业试验,现已完成第一口竖井的钻进试验。 潜入式钻机研制中的技术难点之一是钻头密封问题。为解决这一问题,我们为Qz3.5型潜入式竖井钻机设计了油差压密封系统。轮通过连接法兰8带动外刀盘旋转。 Qz3.5 drilling rig is developed in China’s first submersible shaft drilling machine. The drilling rig by the Shandong Coal Research Institute presided over the Nantun mine in Nantun coal surface drill bit test, has completed the first shaft drilling test. One of the technical difficulties in the development of submerged drilling rigs is the bit seal problem. To solve this problem, we designed the oil differential pressure sealing system for the Qz3.5 submersible shaft drilling rig. Wheel through the connecting flange 8 driven outer cutter plate rotation.