Boring device for turbine low pressure cylinder bearing ball surface

This steam turbine low-pressure cylinder bearing sphere boring equipment relates to a boring device. This equipment aims at the problem that the conventional boring machine tool can't process the steam turbine low-pressure cylinder bearing sphere. The motor (7) of this utility model is connected with small cone gear (8), the small cone gear (8) is toothed with large cone gear (10) on the first shaft (11), the first shaft (11) is provided with the first gear (6) which is toothed with the second gear (5), the second gear (5) is installed on the first shaft sleeve (4), the first shaft sleeve (4) is installed on the driving shaft (18), the driving shaft (18) is connected with the second connecting shaft (19) via coupling joint (9), the driving shaft (18) is installed on the first connecting shaft (14) which is connected with the first clutch (13), the first shaft sleeve (4) is connected with the second shaft sleeve (20), the second connecting shaft (19) is connected with ball screw rod (22) via the second clutch (21), the tow ends of connecting rod (1) are respectively connected with the fork seat (23) and cutter seat (2) which are installed on the ball screw rod (22). This utility model can process the steam turbine low-pressure cylinder bearing sphere with high processing efficiency.