JPS61206166U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a detailed view of the floating seal according to the present invention, Figs. 2 a to d are views showing various structures for joining the ring seal base material and the high alloy sintered alloy ring, and Fig. 3 is a detailed view of the floating seal according to the present invention. The figure is a perspective view showing parts of the power shovel including an exploded view of the guide roller, Figure 4 is a schematic diagram of the guide roller including a cross section of the floating seal, and Figure 5 is a circular frame in Figure 4. FIG. 3 is a detailed view of the floating seal inside. Each symbol in the figure is as follows. 1: High alloy sintered alloy ring, 2: Ring seal base material, 3, 4
: Joint part, 5: Guide roller, 6, 7: O-ring, 8: Collar, 9: Button, 11, 12: Ring seal, 13, 14: Sintered metal ring, 15
: Gap, 16: Sliding surface, 17: Oil.

Claims (1)

[Claims for Utility Model Registration] (1) In a floating seal in which a pair of ring seals with a tapered surface are connected to the sliding surface and are in sliding contact, the sliding surface of the ring seal is connected to a high alloy sintered alloy ring. A floating seal made of a ring seal base material made of an inexpensive combustible metal and joined by baking, diffusion, or brazing. (2) Form an annular notch by leaving the annular flange at the lower end of the sliding surface of the ring seal base material, and place a high alloy sintered metal ring having a sliding surface and a tapered surface connected to the sliding surface in the annular notch. In fitting, the outer circumferential end of the ring is made to protrude slightly outward from the end of the base material, and the tapered surface of the ring and the end surface of the annular flange of the base material are aligned to form a part of the tapered surface. A floating seal according to claim 1 of the utility model registration claim. (3) A back plane of the sliding surface of a high-alloy sintered metal ring that has an annular notch in a part of the sliding surface of the ring seal base material, and has a sliding surface and a tapered surface connected to the sliding surface. is provided in an annular notch to engage the annular notch of the base material and the annular notch of the ring, the outer circumferential end of the ring is made to protrude slightly outward from the end of the base material, and the taper of the ring is 2. The floating seal according to claim 1, wherein the lower part of the surface protrudes in front of the sliding side surface of the base material. (4) The sliding side surface of the ring seal base material is a tapered surface, a high alloy sintered alloy ring having a sliding surface is joined to the outer peripheral surface of the base material, and the sliding surface and the tapered surface are continuous. A floating seal according to claim 1 of the utility model registration claim, characterized in that: (5) A high alloy sintered alloy ring having a tapered surface connected to the sliding surface is bonded to the upper part of the sliding surface of the ring seal base material so that the ring slightly protrudes outward from the base material. A floating seal according to claim 1 of the utility model registration claim. (6) An annular notch is provided in the upper part of the sliding side surface of the ring seal base material, the lower part thereof is a tapered surface, and a cylindrical high alloy sintered alloy ring having the sliding surface is fitted into the annular notch. The floating seal according to claim 1, wherein the sliding surface and the tapered surface are continuous surfaces.