Structure design and welding process of impact roller connecting shaft of impact roller

Because it is in use. Examples of fractures from this part, subject to structural and usage limitations, we propose the following solutions: the bearing collar is a hole, the shaft tube is a shaft, and the joint position 0 is welded with a fillet weld, which simplifies the connection cost, while the shaft hole Positioning with tight fit improves the situation in the past where the weld was affected by the weld. The disadvantage is that the bearing sleeve is increased in size, the structural design is not reasonable, and the machining cost is high. The neck sleeve tube is between the shaft shaft holes. Tight fitting, assembly by heat assembly, heating of the sleeve body and the small shirt, easy assembly like the accuracy of the entire connecting shaft depends on 3 parts, the cumulative error increases, there are two bearing welds, the processing of complex high cost The force condition 4 is good and the bearing capacity is weakened. The bearing sleeve is used as the shaft, the shaft tube is the hole, the interference between the hole and the shaft is adopted, the heat assembly is performed, and the welding method of the plant slope is adopted. The slope welding seam is sufficient. Overlapping, welding firm, deep penetration, high efficiency of the museum, and the welding area is small, avoid heat, excessive loss, to ensure the factory welding quality.

From the analysis of the force situation of the above scheme, we can see that the first scheme is ideal. In practice, we discovered that the welding art process has a great influence on the welding quality. After repeated practice, we believe that the following welding process is the better solution.

1 with 0 gas shielded welding machine. Select a wire with a diameter of 1.2 and adjust the welding flow to 200 volts to symmetrical spot welding. The spot weldability can be appropriately increased to a height that will uniformly heat the entire weld, adjust the current to 300, and adjust the current to 200 volts to 15, Welded flat can be cooled after mechanical cooling by mechanical knocking.