JPS62144545A - Grease supply type bearing device for differential type shaft generator - Google Patents

Abstract

PURPOSE:To supply and discharge grease easily by extruding waste grease lubricating a bearing from a radial exhaust passage formed to a bearing housing and storing the waste grease in an annular groove shaped on the outer circumference of the bearing housing. CONSTITUTION:A bearing 11 is supplied with grease through a supply passage 16 from the end surface of a cylindrical bearing housing 14. A plurality of exhaust passage 19 discharging waste grease lubricating the bearing 11 by the operation of a rotary finger 18, etc. adjacent to the bearing 11 are formed radially to the bearing housing 14, faced oppositely in the radial direction to the finger 18. An annular groove 20 communicated with the exhaust passage 19 is shaped to the outer circumference of the bearing housing 14, and the outer surface of the groove 20 is closed detachably by an annular cover 21.

Description

[Detailed description of the invention] [Technical field to which the invention pertains] The present invention provides a differential shaft generator in which waste grease that has lubricated a bearing can be easily discharged [Prior art and its problems] A conventional example of a type shaft generator will be explained based on FIG. In this figure, brackets 3 and 4 that rotatably support a shaft 2 via a bearing 1 are attached to both end faces of a cylindrical frame 5, and the brackets 3 and 4 are rotatably supported by a bearing stand 6. The bearing 1 is generally a grease-filled bearing.

The shaft 2 is driven by the main engine of the ship, but since the rotational speed of the main engine fluctuates greatly, the frame 5 etc. are driven by an exhaust gas turbine etc. to equalize the fluctuations in the generator output due to this, and the generator The output is taken out via a current collector 7 attached to the bracket 4.

In such a structure, a grease replenishment path and a discharge path for the waste grease that has lubricated the bearing 1 are provided from the outer surfaces of the brackets 3 and 4 to make the structure of the bearing 1 part a grease replenishment type.
However, since the stopping positions of the brackets 3 and 4 are not constant, it is difficult to replenish and discharge grease.

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned drawbacks, it is an object of the present invention to provide a grease replenishment type bearing device for a differential shaft generator, in which waste grease lubricating the bearing can be easily discharged.

[Key points of the invention]

In order to achieve the above object, the present invention supplies grease to the bearing portion from the end face of a cylindrical bearing housing through a supply channel, and discharges the waste grease that has lubricated the bearing by the action of a rotating flinger or the like adjacent to the bearing. A plurality of discharge passages are provided radially in the bearing housing to face the flingers in the radial direction, and an annular groove communicating with the discharge passages is provided on the outer periphery of the bearing housing, and the outer surface of this groove is removably closed with an annular lid. It was designed to do so.

[Embodiments of the invention]

FIG. 1 shows an embodiment of the present invention, and the same parts as in FIG. 3 are denoted by the same reference numerals. In this figure, a bearing 11 is fitted into the inner peripheral part of a cylindrical bearing housing 14 at the center of the bracket 13 from one end side and is held therein. 15 is installed. The bearing housing 14 is provided with an axial grease supply path 16 extending from the other end surface to the inner surface of the bearing cover 15, and a nipple 17 is attached to the tip of this supply path 16. When new grease is supplied from this nipple 17 with a grease gun, the grease can be sent to the inner end surface of the bearing 11 through the supply channel 16, and this grease is pushed into the rolling parts of the bearing 11 by the pressure of the gun and lubricates them. It is supposed to be done. A disk-shaped rotary finger 18 is disposed adjacent to the outer end surface of the bearing 11, and a bearing 1 is provided in the bearing housing 14 radially opposite to the finger 18.
As shown in FIG. 2, a plurality of discharge passages 19 for the waste grease lubricated by the grease 1 are provided in a radial manner.

An annular groove 20 communicating with the discharge passage 19 is provided on the outer periphery of the bearing housing 14, and the outer surface of the groove 20 is closed with a removable annular lid 21. The waste grease is shaken off by the action accompanying the rotation of the flinger 18 and pushed into the discharge passage 19, and this waste grease is pushed out by the centrifugal action accompanying the rotation of the discharge passage 19 and is uniformly accumulated in the groove 20.

The waste grease accumulated in the groove 20 is discharged by removing the lid 21 and scraping it out from the groove 20 with a scraping stick or the like, thereby allowing the lubricating grease in the bearing 11 to be replaced with new one.6According to the embodiment described above. The bearing 11 has a grease supply path 16 provided on the end face of the bearing housing 14.
Since the waste grease lubricated by the bearing housing 14 is stored in the annular groove 20 provided on the outer periphery of the bearing housing 14, the grease can be easily replenished and discharged regardless of the stop position of the bracket 13.

〔Effect of the invention〕

According to this invention, in a grease replenishment bearing device for a differential shaft generator, a grease replenishment path is provided from the end face of the cylindrical bearing housing, and the waste grease that has lubricated the bearing is transferred radially to the flinger by the action of a rotating flinger or the like. The effect is that the grease can be easily replenished and discharged by pushing it out from the radial discharge passages provided in the bearing housing, regardless of the stopping position of the outer peripheral receiver housing of the bearing housing.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of a main part of an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view taken along the line ■--■ in FIG. 1, and FIG. 3 is a vertical cross-sectional view of a conventional example. 2... Shaft, 11... Bearing, 14... Bearing housing, 16... Supply path, 18... Flinger, 19...
...Discharge channel, 20... Groove, 21... Lid. ,tri, )')-7wata:

Claims (1)

[Claims] 1) In a differential shaft generator in which a cylindrical bearing housing that supports a shaft via a bearing and the shaft rotate together, grease is supplied to the bearing portion from the end face of the bearing housing through a supply path to lubricate the bearing. A plurality of discharge passages for discharging the waste grease by the action of a rotating flinger or the like adjacent to the bearing are provided in a plurality of radial directions in the bearing housing, facing the flinger in the radial direction, and an annular groove communicating with the discharge passage is provided on the outer periphery of the bearing housing. A grease replenishing type bearing device for a differential shaft generator, characterized in that the outer surface of the groove is removably closed with an annular lid.