A flip casting method for 30f loader axle housing

Abstract

The invention discloses an overturning casting method for an axle housing of a 30F loader. The method comprises the following steps of: (1) manufacturing a sand core by using thread steel of which the diameter is 20mm as a sand core arbor, filling foam into an axle bag to reduce the weight of the sand core, and forming a flange core head seat of which the diameter is 50mm in the center of a flange surface in the middle of the sand core; (2) manufacturing an upper die cavity, forming a heating open riser at each of two ends of an upper die, forming four heating blind risers in the edge of the flange surface in the middle of the upper die along the circumferential direction, and forming a sand core hoisting channel of which the diameter is 50mm in the center of the flange surface; (3) placing the sand core into the upper die cavity, hoisting the upper die cavity until the upper die cavity is suspended, and locking the sand core; (4) manufacturing a lower die cavity; (5) positioning and installing a core support; and (6) assembling the upper die cavity and the lower die cavity. According to a molding process, the design is reasonable, the flange surface of the cast axle housing is compact without a shrinkage hole, and a sand-hole phenomenon is avoided, so that a phenomenon of oil leakage from a large flange, an oil filling hole and an oil discharging hole in the using process of the axle housing is avoided.

Description

technical field [0001] The invention belongs to the technical field of engineering machinery and truck axle housing manufacturing technology, and in particular relates to an overturn casting method for a 30F loader axle housing. Background technique [0002] Vehicle drive axle housing is one of the key safety components of heavy-duty vehicles. It is not only the main component of the transmission system, but also the main safety component of the driving system. In the traditional system, the drive axle housing is used to support and protect the final drive, differential In the driving system, the drive axle housing is used to fix the axial relative position of the left and right driving wheels, and supports the frame and the mass of each assembly on it together with the driven axle; at the same time, when the vehicle is running At the same time, it bears the road surface reaction force and moment transmitted from the right wheel, and transmits it to the frame through the sus...

AI Technical Summary

Problems solved by technology

[0003] The molding methods of the vehicle drive axle housing mainly include casting molding and stamping-welding molding; the casting molding of the prior art mainly has heavy weight, many casting processes, easy to form sand holes, and it is easy to cause the sand core to be incomplete during the casting process. In addition, the stamping-welding forming process makes it difficult to accurately match the main parts of the axle housing, which needs to be trimmed before welding, and the welding seam is long, the welding workload is large, the welding quality is high, and the utilization rate of materials is high. lower

Images