JPS5811935Y2 - Thrust bearing device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a thrust bearing device provided at the shaft end of a rotating machine to receive the thrust load of the rotating machine.

Conventionally, this type of thrust bearing device has been constructed by fixing a thrust bearing and a thrust bearing support integrally with screws or the like.

Therefore, when replacing the thrust bearing because the sliding surface of the thrust bearing with the thrust disk becomes worn or damaged,
It had to be replaced along with the thrust bearing support.

Also, in terms of manufacturing, a process of integrating the thrust bearing and the thrust bearing support was required, which was time-consuming and costly.

Furthermore, since the oil grooves are provided at the same position on both sides of the thrust bearing, cracks are likely to occur, causing damage.

This invention was developed in view of the above-mentioned drawbacks, and aims to provide a thrust bearing device that can improve bearing performance and bearing life, and reduce man-hours and materials.

An embodiment of this invention will be described below with reference to FIGS. 1 to 3.

That is, in the figure, reference numeral 1 denotes a disk-shaped thrust bearing support, which is provided with a protrusion 2 on its surface that contacts a thrust bearing 3, which will be described later, and has a structure in which a circumferential edge 1A protrudes.

Reference numeral 3 designates an annular thrust bearing, which has smooth sliding surfaces on both sides, and radial lubricant circulation grooves 4 are formed at predetermined intervals on both sides to communicate the inner and outer circumferences. There is.

Furthermore, this lubricant distribution groove 4 provides a predetermined mechanical strength to the thrust bearing 3 without increasing the thickness of the thrust bearing 3.
The front and back surfaces are provided at positions that are shifted by a predetermined angle in order to allow the user to hold them.

Then, by removably fitting the lubricant distribution groove 4 of the thrust bearing 3 formed in this way into the protrusion 2 of the thrust bearing support 1 as shown in FIG.
is fixed within the circumferential edge IA of the thrust bearing support 1 to constitute a thrust bearing device.

In addition, the thrust bearing 3 of this thrust bearing device is slidably brought into surface contact with a thrust disk 6 whose sliding surface is fixed to the end of the shaft 5 of the rotating machine so as to be smooth, as shown in FIG.
It is configured to receive a thrust load of

As described above, the thrust bearing device according to this invention is constructed by attaching and detaching the thrust bearing 3, which has surfaces on both sides that can slide on the thrust disk 6, to the thrust bearing support 1.

Therefore, even if the sliding surface of the thrust bearing 3 that contacts the thrust disk 6 is worn out, the thrust function can be restored by reversing the thrust bearing 3, compared to the conventional one. It can have twice the lifespan.

In addition, unlike conventional methods, the thrust bearing 3 and the thrust bearing support 1 are not fixedly integrated by screws or the like, but the lubricant distribution grooves 4 provided on both sides of the thrust bearing 3 are used to make the thrust bearing 3 Since it is prevented from rotating, it reduces man-hours and can be attached and detached, improving bearing performance.

Furthermore, since the lubricant distribution grooves 4 of the thrust bearing 3 are formed in a radial shape that communicates the inner and outer circumferences, a circular force acts due to the rotation of the thrust disk 6, and the lubricant in the grooves is distributed from the center to the outer circumference. The lubricant is circulated to constantly supply cooled lubricant to the sliding surfaces, improving the cooling performance of the sliding surfaces.

Further, since the lubricant distribution grooves 4 are provided at positions shifted by a desired angle on both sides of the thrust bearing 3, it is possible to provide a thrust bearing device with less cracking, less material, and a long life.

[Brief explanation of the drawing]

Figures 1 to 3 relate to an embodiment of this invention; Figure 1 is a front view, Figure 2 is a sectional view taken along line II-II in Figure 1, and Figure 3 is a perspective view showing a state in the middle of assembly. It is. In the drawings, the same reference numerals indicate the same parts; 1 is a thrust bearing support, 2 is a protrusion, 3 is a thrust bearing, 4 is a lubricant distribution groove, 5 is a shaft, and 6 is a thrust disk.

Claims (2)

[Scope of utility model registration request] (1) A thrust bearing that receives the thrust load of the rotating shaft through sliding contact with a thrust disk mounted on the rotating shaft, and a thrust bearing support that supports this thrust bearing, and both sides of the thrust bearing are provided with the In a thrust bearing device in which the thrust bearing has a surface that can slide on the thrust disk and is fixed to the thrust bearing support, a lubricant distribution groove provided on both sliding surfaces of the thrust bearing is arranged between one surface and the other surface. A thrust bearing device characterized in that the thrust bearing device is provided at a position shifted by a desired angle from the surface of the thrust bearing device. (2) Practical use characterized in that the thrust bearing is removably fixed to the thrust bearing support by providing a protrusion on the thrust bearing support and fitting the lubricant flow groove of the thrust bearing into the protrusion of the thrust bearing support. A thrust bearing device according to claim 1 of the patent registration claim.