Rolling type centrifugal casting machine

Abstract

The invention relates to a rolling type centrifugal casting machine. A first supporting seat and a second supporting seat which are used for supporting shafts are oppositely arranged on a base; a rotating shaft which extends horizontally is arranged on each of the two supporting seats; the two rotating shafts are parallel, and the heights of the two rotating shafts in the horizontal position are same; the rotating shafts are supported on the supporting seats through bearings; rollers for holding a cylinder casting mold for rotating are respectively installed at two extending ends of the rotating shaft; a driven wheel for receiving power transmission is installed at one end of the rotating shaft on the first supporting seat so as to enable the roller on the first supporting seat to be an active roller, and the roller on the second supporting seat to be a driven roller; and the spacing distance between the active roller and the driven roller is greater than the radius of the cylinder casting mold and is less than the diameter of the cylinder casting mold, thereby forming a raceway for the cylinder casting mold to rotate. The invention can enable the cylinder casting mold of which the axial length is greater than 400mm to be held by the rollers on the two supporting seats for rotating, overcomes the rotary swing of a cantilever type casting mold, realizes the purpose of carrying out centrifugal casting by using a longer cylinder casting mold, improves the production efficiency, has simple structure, and reduces the manufacturing cost of the centrifugal casting machine.

Description

technical field [0001] The invention relates to centrifugal casting equipment, in particular to a roller-supporting centrifugal casting machine. Background technique [0002] See Figure 4 As shown, the existing centrifugal casting machine is usually a horizontal cantilever centrifugal casting machine. This kind of centrifugal casting machine has a complex structure, especially one end of the casting mold 11 is connected to the shaft end of the main shaft 12 to form a cantilever state. The rotation of the main shaft drives the rotation of the casting mold. The molten metal injected into the mold is cast into shape under the action of centrifugal force. This cantilever centrifuge has a cantilever shape because the casting mold is installed on the main shaft. In order to avoid the rotation and swing of the suspended end of the casting mold when it rotates with the main shaft, which will affect the molding of the casting, the axial length of the casting mold is relatively short...

AI Technical Summary

Problems solved by technology

[0002] See Figure 4 As shown, the existing centrifugal casting machine is usually a horizontal cantilever centrifugal casting machine. This kind of centrifugal casting machine has a complex structure, especially one end of the casting mold 11 is connected to the shaft end of the main shaft 12 to form a cantilever state. The rotation of the main shaft drives the rotation of the casting mold. The molten metal injected into the mold is cast into shape under the action of centrifugal force

This cantilever centrifuge has a cantilever shape because the casting mold is installed on the main shaft. In order to avoid the rotation and swing of the suspended end of the casting mold when it rotates with the main shaft, which will affect the molding of the casting, the axial length of the casting mold is relatively short, generally not exceeding 400mm. It is used to install the connecting end part, and the axial length of the cast casting is shorter, so that the length of the cast casting is restricted

Moreover, the casting mold needs to be fixedly connected with the main shaft in the circumferential direction. In order to avoid the rotation and swing of the main shaft shaft end, the bearing seat at the end connecting the main shaft and the casting mold will be as close as possible to the shaft end, and the journal sleeve at the connecting end of the casting mold and the main shaft will be shortened as much as possible. This results in a narrow space between the casting mold and the main shaft, which makes the installation operation when the casting mold and the main shaft are fixedly connected in the circumferential direction very inconvenient and time-consuming to install.

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