Oil separation method and oil separation device for a hydrodynamic thrust bearing

Abstract

The invention discloses an oil removal method for a liquid dynamic pressure thrust bearing. The oil removal method comprises the following steps: when the liquid dynamic pressure thrust bearing is working, cold oil enters the part between a bearing bush and a thrust runner plate from the oil inlet end of the bearing bush, and becomes hot oil under the friction of the rotating thrust runner plate to flow out from the oil outlet end of the bearing bush, the hot oil flows towards the oil inlet end of the next bearing bush along with the rotation of the thrust runner plate, and before the hot oil enters the next bearing bush, an oil removal device is arranged and matched with the working surface of the thrust runner plate, so that the hot oil flows in an oil tank below the bearing bush. The invention further discloses the oil removal device used in the oil removal method, the oil removal device is arranged between the two adjacent bearing bushes, and is fixedly arranged in the oil tank below the working surface of the thrust runner plate. According to the oil removal method and the oil removal device, not only can the size of the overall thrust bearing be reduced, but also the amount of hot oil entering the bearing bushes can be decreased, the amount of cold oil flowing in the bearing bushes can be increased, and the purpose of improving the bearing capacity of the bearing can be achieved.

Description

technical field [0001] The invention belongs to the technical field of sliding bearings for mechanical products, and in particular relates to an oil separation method and an oil separation device for a hydrodynamic thrust bearing. Background technique [0002] In the prior art, the hydrodynamic thrust bearing is mainly composed of a rotating shaft, a mirror plate, a bearing bush and a bearing seat. The rotating shaft and the mirror plate are fixedly connected to drive the mirror plate to rotate. There are multiple bearing bushes distributed around the rotating shaft, and the bearing bushes are arranged obliquely. Under the working surface of the mirror plate, and turn forward to form a wedge-shaped gap with the mirror plate. The large opening side of the wedge-shaped gap is the oil inlet end, and the small opening side of the wedge-shaped gap is the oil outlet end. The bearing seat is fixed in the oil groove and connected with the bearing bush. When in use, driven by the rot...

AI Technical Summary

Problems solved by technology

However, in two adjacent bearing pads, since the oil outlet end of the previous bearing pad is the oil inlet end of the rear bearing pad, and the oil will become hot after being rubbed by the mirror plate, this will cause some hot oil to adhere to the mirror plate Driven by the mirror plate, it enters between the next bearing bush and the mirror plate, correspondingly reducing the amount of cold oil entering the bearing bush, not only increasing the working oil temperature of the bearing, reducing the bearing capacity of the bearing, but also easy to bearing damage

In addition, in actual use, it is usually used to increase the distance between the two bearing pads to reduce the amount of hot oil that the former bearing pad enters the rear bearing pad, but this method increases the volume of the thrust bearing accordingly, which not only leads to the The increase in the space occupied area also leads to an increase in the manufacturing materials of the entire thrust bearing and a higher cost

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