JPS6014077Y2 - Oil ring type bearing device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an oil ring type bearing device that supplies oil to a rotating shaft and a thrust collar using an oil ring.

In conventional oil ring type bearing devices, lubricating oil is generally supplied to a bearing gap between the rotating shaft and a bearing body that supports the rotating shaft using an oil ring suspended on the rotating shaft.

Depending on where the oil ring type bearing device is used, some oil ring type bearing devices are equipped with a thrust collar for supporting thrust loads.

In this oil ring type bearing device equipped with a thrust collar, lubricating oil to the thrust collar is scraped up by the oil ring and supplied to the bearing gap between the rotating shaft and the bearing body, and the lubricating oil is provided in the bearing body. The problem is solved by supplying oil through an oil pipe or by providing another means of refueling.

However, the former type of lubrication means has disadvantages such as insufficient lubrication when the thrust collar is located far away, and the latter type of lubrication means requires the installation of a separate lubrication device.

The present invention was developed based on the above-mentioned considerations, and an object of the present invention is to provide an oil ring type bearing device that can sufficiently supply oil to a rotating shaft and a thrust collar.

In order to achieve the above object, the present invention provides an oil ring type bearing device in which a thrust collar that supports a rotating shaft and a thrust load is lubricated by an oil ring. The oil ring is suspended from the rotating shaft so as to be positioned within the guide groove of the oil ring.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the oil ring type bearing device of the present invention. In the figure, 1 is a rotating shaft, 2 is a bearing body thereof, and 3 is a housing that supports the bearing body 2. FIG.

An oil passage 4 for the rotating shaft 1 is provided horizontally in the bearing body 2 .

The rotating shaft 1 is provided with a thrust collar 5 that is in contact with an end surface of a bearing body 2 and supports a thrust load.

The oil ring 6 is placed on the rotating shaft 1 so that it is located within the guide groove 7.
is suspended.

This guide groove 7 is defined by a peripheral surface 7A and a side surface 7B provided on the bearing body 2 and a side surface 5A of the thrust collar 5.

With this configuration, the oil ring 6 scrapes up the oil in the oil sump 8, supplies the oil to the thrust collar 5, and also supplies it to the rotating shaft 1 through the lottery 4.

Thereby, lubricating oil can be sufficiently supplied to the rotating shaft 1 and the thrust collar 5.

In addition, the oil ring 6 is configured such that the oil shearing force between the side surface 5A of the rotating thrust collar 5 and the side surface of the oil ring 6 acts effectively, increasing the rotation speed of the oil ring 6 and increasing the amount of oil pumped. Can be done.

In addition, in the above embodiment, the thrust collar 5 is provided on the end face of the bearing body 2.
As shown in Figure 2,
When a thrust collar 5 is provided at the intermediate portion of the bearing body 2 that supports the rotating body 1, a guide groove 7 is formed on the side surface of the thrust collar 5, and the thrust collar , the oil ring 6 may be suspended on the rotating shaft 1.

Furthermore, in the embodiment shown in FIG.
A collar 9 may be provided on the rotating shaft 1 to facilitate rotation of the rotating shaft 1.

As described above, according to the present invention, in a device equipped with a thrust collar, sufficient lubricating oil can be supplied to the thrust collar and the rotating shaft, so the bearing life is improved compared to conventional ones. In addition, there is an effect that a separate oil supply means for the thrust collar is not required.

[Brief explanation of the drawing]

The drawings show embodiments of the oil ring type bearing of the present invention; FIG. 1 is a longitudinal sectional view of one embodiment, FIG. 2 is a longitudinal sectional view of another embodiment, and FIG. 3 is a longitudinal sectional view of another embodiment. FIG. 3 is a longitudinal cross-sectional view of the embodiment. 1...Rotating shaft, 2...Bearing body, 3...
...Housing, 5...Thrust collar,
6... Oil ring, 7... Guide groove.

Claims (1)

[Claims for Utility Model Registration] 1. In an oil ring type bearing that supplies oil to a rotating shaft and a thrust collar that supports a thrust load using an oil ring, the oil ring is formed by one side of the thrust collar of the rotating shaft and the bearing body. 1. An oil ring type bearing device, characterized in that the oil ring type bearing device is suspended on a rotating shaft so as to be positioned in a guide groove of an oil ring. 2. The oil ring type bearing device according to claim 1, wherein the thrust collar is provided on the end face of the bearing body. 3. The oil ring type bearing device according to claim 1, wherein the thrust collar is provided approximately in the middle of the bearing body in the direction of the rotation axis.