A dismantling process for deformed pin shaft of remanufactured concrete pump truck

Abstract

The invention discloses a disassembly technology for remanufacturing a deformation hinge pin of a concrete pump truck. The disassembly technology comprises the following steps that (1) a hole is drilled in the axial center position of the deformation hinge pin and the diameter of the drilled hole is smaller than that of the hinge pin; (2) the method that a jack or a hammer is used for knocking the hinge pin wall after the hole is drilled is adopted, so that the deformation hinge pin is disassembled. When the diameter of the hinge pin is large, the hole is bored after being drilled, so that the hinge pin wall has a soft elastic structure after the hole is drilled. Under the condition that a shaft sleeve and a component body are not damaged, the reuse value of the shaft sleeve is achieved, the remanufacturing cost is effectively reduced, the procedures that the shaft sleeve is installed and welded again, a line is drawn, a shaft sleeve hole is machined are not needed, the production bottleneck is overcome, and the production efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of concrete pump trucks, in particular to a dismantling process for remanufacturing a deformed pin shaft of a concrete pump truck. Background technique [0002] When the decommissioned concrete pump truck was remanufactured, it was found that part of the pin shaft had been deformed, resulting in misalignment and misalignment between the shaft and the bushing. figure 1 , attached figure 2 as shown, figure 1 including bushing 1 and pin 2, figure 2 Dislocation deformation at the mid-section (point G). When the pump truck is remanufactured, the deformed pin shaft is difficult to remove, and the shaft and bushing must be cut off together to disassemble. When the deformed pin is disassembled, the shaft sleeve and the component body are damaged, the reuse value of the shaft sleeve and the component body is lost, the reuse rate of parts is reduced, and the remanufacturing cost is increased. The main body of the compone...

AI Technical Summary

Problems solved by technology

When the deformed pin is disassembled, the shaft sleeve and the component body are damaged, the reuse value of the shaft sleeve and the component body is lost, the reuse rate of parts is reduced, and the remanufacturing cost is increased

The main body of the damaged component during disassembly needs to be reassembled and welded, and the bush hole needs to be reprocessed after welding, thus prolonging the production cycle and increasing the processing cost

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