Inspection And Maintenance Of Clearance Produced By Double Nut Pair Of Ball Screw

Through inspection, if it is confirmed that the fault is not caused by the screw movement. Then it is necessary to consider whether there is a gap between the screw and nut pairs. The detection method in this case is basically the same as the detection of the screw movement. Use a dial indicator to measure the worktable connected to the nut, turn the lead screw forward and reverse, detect the maximum gap between the lead screw and the nut, and then adjust.

The method is to adjust the thickness of the gasket 4 to make the left and right nuts 1 and 2 produce axial displacement, thereby eliminating the ball screw nut pair clearance and generating pre-tightening force. Due to the different structures of the screw and nut pairs, the adjustment methods are also different.