70B_2—12~#风机在中小型矿井中多被用作主扇。为了保证正常运转,必须定期给轴承加油。由于本类机体的扩散器心体内腔太小,出入口尺寸只有400×310毫米,注油时人员进出非常困难,加油时粉尘、油污多,劳动条件恶劣。我们针对这一问题,组织三结合小组进行了改革。具体做法如下: 一、先停机然后打开后轴承加油进出孔盖1,人员进去把小油盅①旋出。继而把风峒检查密闭门启开,人员绕道风峒把前轴承 70B_2-12 ~ # fan in the small and medium mines are used as the main fan. In order to ensure normal operation, we must regularly refuel the bearings. As the body of the diffuser body cavity is too small, the size of the entrance is only 400 × 310 mm, the oil is very difficult to enter and exit when refueling dust, oil and more bad working conditions. In response to this issue, we organized the reform of the three-pronged working group. Specific practices are as follows: First, stop and then open the bearing refueling access cover 1, the staff into the small oil cup ① screw out. Then the wind 峒 check the door closed, the staff detours wind 峒 the front bearing