Clamping method and system for overhauling short shaft side gearbox of motor train unit based on AGV (Automatic Guided Vehicle)

Abstract

The invention discloses an AGV-based motor train unit short shaft side gear box overhauling and clamping method and system. The method comprises the steps that a turnover machine and a gear box positioning and clamping unit return to zero for self-inspection; the AGV conveys the gear box workpiece on the short shaft side to a box closing operation station and takes the gear box workpiece in place; the robot presses the torque value on the short shaft side end face of the gearbox and then returns to the zero position; a gearbox vertical lifting unit is installed on the short shaft side of a gearbox workpiece and fixed, a transverse moving unit is started to eliminate the gap value between a box body on the short shaft side of the gearbox workpiece and the gearbox vertical lifting unit, and a gearbox positioning and clamping unit on the short shaft side is controlled to rotate anticlockwise so that the gearbox workpiece can be in a vertical posture; the automatic jacking unit assists in adjusting the large gear bearing clearance of the gear box workpiece until the gear box workpiece is qualified; after the small gear enters the box and the clearance of the small gear is measured, the short shaft side gear box positioning and clamping unit is controlled to rotate clockwise, so that a gear box workpiece is in a horizontal posture; and through integrated and automatic operation, the workpiece hoisting cost is saved, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of overhauling the gear box of the EMU, and more specifically relates to an AGV-based method and system for overhauling and clamping the gear box on the short axis side of the EMU. Background technique [0002] There are two types of short-shaft side gearboxes currently used in China's high-speed railways, one is the split G312 gearbox for CRH3, and the other is the split G322 gearbox for Fuxing CR400; both gearboxes are There is a common feature, that is, after the upper and lower casings of the gearbox are combined with the left and right bearing seats, the clearance adjustment pads of the large gears on both sides are designed on the long axis side, so the gearbox on the short axis side needs to be installed first, and then Put the gearbox shaft upright, and then install and adjust the clearance adjustment pad on the long axis side of the gearbox shaft and the bearing seat cover on the long axis side. Th...

AI Technical Summary

Problems solved by technology

At present, the on-site maintenance data is recorded manually. Whether the bearing clearance adjustment is qualified or not depends on the experience and feeling of the workers. There are human errors, and the operator's skills and proficiency are high. It is impossible to form a complete process of maintenance data flow for the quality card. Control, maintenance process analysis, optimization of maintenance management

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