JPS5824016Y2 - Bearing spacer - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a buckling bearing spacer with an alignment function.

It has been proposed to use a buckling bearing spacer 5 as shown in FIG. 1A in combination bearings for automobile axles and other general industrial machinery.

However, when the bearing spacer 5 made of A[alloy or the like which can be buckled is inserted between the bearings of the combination bearings 3-1 and 3-2, the spacer 5
When the end face of the bearing is buckled by applying it to the end face of the bearing, since the end of the bearing generally has a chamfer, the spacer 5 bites into the chamfer C, as shown in the opening in FIG.
A protrusion 5a is formed on the end face of the spacer.

When assembling the bearing, the bearing end face and the projection 5a of this spacer are
may come into contact with each other, making it impossible for the spacer 5 to have an appropriate size as a bearing spacer, and thus failing to function as a buckling spacer.

Therefore, in order to prevent the formation of a protrusion 5a due to the buckling of the bearing spacer when it is buckled, the spacer must be dimensioned to allow the bearing chamfer to escape and contact the flat part of the bearing end face. .

However, when incorporating a buckling bearing spacer into a horizontal shaft,
The bearing spacer will move downward by the gap between the bearing spacer diameter and the bearing diameter (or shaft diameter), and the upper part of the spacer will bite into the bearing chamfer, as shown in Figure 1A. Therefore, it was impossible to prevent the formation of protrusions.

In the drawings, 1 is a shaft, 2 is a bearing box, and 4 is a nut.

This idea is an improvement on the above-mentioned drawbacks of the conventional example, and in particular, in order to prevent the function of the buckling spacer from being impaired, the gap between the spacer diameter and the shaft diameter is filled. To provide a spacer in which a centering member rich in elasticity is inserted and a bearing spacer and a centering member are integrally combined so that the end face of the buckling spacer is always in contact with the flat part of the bearing end face. It is something.

The structure of this invention will be explained below according to the specific embodiment shown in FIGS. 2 and 3.

In the drawings, 11 is a shaft, 12 is a bearing box, 13-1 and 13-2 are bearings, 14 is a nut, 15 is a spacer, and 16 is a centering member.

In the above structure, as shown in the enlarged view in FIG. 2, a centering member 16 made of highly elastic rubber, synthetic resin, etc. The bearing spacer 15 is arranged integrally with the flexible bearing spacer 15, and both ends of the bearing spacer 15 are aligned with the centering member 16 so that both bearings 1 are always aligned.
3-1 and the flat portions of the end faces of 132.

The connection between the bearing spacer 15 and the alignment member 16 is as shown in FIG. Centering member B
combinations, combinations in a U-shape, combinations in which the entire bearing spacer A is covered, and even combinations with alignment member B on the outer diameter of the spacer, and alignment members on the inner surface of the bearing box. There is one in which a bearing spacer A is attached via B.

As explained above, this invention is a centering system in which an elastic centering member made of a synthetic resin material is integrally bonded to a buckling bearing spacer for setting preload or clearance of a combination bearing due to dimensional changes. Regarding a buckling bearing spacer with a function, it is easy to deviate from the appropriate size of the spacer due to the edges of both ends of the spacer digging into the relationship with the bearing chamfer, which occurs with conventional buckling spacers. will be corrected.

In other words, the formation of protrusions due to digging into the spacer is eliminated,
When the spacer is buckled, the dimensions are accurately determined, and even when a buckling spacer is installed on the horizontal shaft, its function can be ensured as shown in Figure 2. Therefore, it is inexpensive and has extremely significant practical effects.

[Brief explanation of drawings]

FIG. 1 is a drawing showing a conventional example, FIG. 1A is a drawing showing an integrated example, and FIG. FIG. 2 is a drawing showing this invention, FIG. 2A is a drawing showing an example of assembly, and FIG. FIGS. 3A to 3E show each ridge side showing how to connect the buckling spacer A and the centering portion B applied to this invention shown in FIG. 2. 11... Shaft, 12... Bearing box, 13-1, 13-
2...Bearing, 14...Nut, 15...Spacer, 1
6... Centering member.

Claims (1)

[Scope of utility model registration request] A buckling bearing with an alignment function made by integrally joining an elastic alignment member made of synthetic resin material to a buckling bearing spacer for setting the preload or clearance of a combination bearing due to dimensional changes. Maza.