JPS6441100U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a partially omitted longitudinal sectional front view showing the overall configuration of a rotary stirring device according to an embodiment of this invention, and FIG. 2 is a plan view of the connecting end of a shaft body used in the apparatus according to an embodiment of this invention. Figure 3 is a vertical sectional view along the line - in Figure 2, Figure 4 is a view taken along the line - in Figure 2, and Figure 5
The figure is a longitudinal sectional front view of the ring body used in the device of the embodiment of this invention, FIG. 6 is a front view showing the ring body shown in FIG. 5 attached to the thick shaft part of the shaft body, and FIG. The figures are a plan view of a coupling member used in the apparatus of the embodiment of this invention, FIG. 8 is a longitudinal sectional view taken along the line - of FIG. Figure 10 is a left side view of Figure 7,
Figure 1 is a vertical sectional view showing the structure near the connecting end of the device of the embodiment of this invention at the same cross-sectional position as Figure 8, and Figure 12 is a longitudinal cross-sectional view of the device of the embodiment of this invention at the same cross-sectional position as Figure 9. FIG. 13 is a vertical sectional view showing the structure near the connecting end, and FIG. 13 is a left side view showing the structure near the connecting end in the apparatus of the embodiment of this invention at the same position as FIG. 10. 1... Shaft body, 4... Stirring part, 5... Connecting end, 6
... Thick shaft portion, 7 ... Ring body, 8 ... Connection member, 8A
, 8B... Half body, 9... Expanded tapered surface, 11
, 12... Reference surface, 14... Cylindrical portion, 15... Flange portion, 19, 20... Positioning surface, 26... Holder screw.

Claims (1)

[Claims for Utility Model Registration] A stirring part is provided at the lower end of a shaft made of a non-metallic refractory material, and the upper end of the shaft is a connecting end connected to a rotational drive means, and the stirring part is melted. In the rotary stirring device for molten metal, the molten metal is stirred in the stirring section by rotating the shaft around the shaft while immersed in the metal, and the upper connecting end of the shaft has a thick shaft section. is formed, and the upper outer peripheral surface of the thick shaft portion is formed with an expanding tapered surface whose outer diameter expands downward, and at least a part of the outer circumference of the thick shaft portion is formed with a tapered surface parallel to the axis. A reference surface consisting of a plane is formed, and a metal ring body whose inner diameter increases downward is fitted and held from above on the tapered surface of the thick shaft portion, and the ring body and the thick shaft portion are fitted and held from above. is surrounded by a metal coupling member that is divisible along a plane including their axes, and the coupling member has a flange portion formed at the upper end of a cylindrical portion surrounding the ring body and the thick shaft portion. In addition, a positioning surface corresponding to the reference surface of the thick shaft portion is formed on the inner circumferential surface of the cylindrical portion, and a retaining screw is further provided at the upper end of the cylindrical portion of the coupling member for pressing and fixing the upper end of the ring body. 2. A rotary stirring device for molten metal, characterized in that the connecting member is screwed through the connecting member, and the flange portion of the connecting member is connected to the rotating driving means.