SU1564422A2 - Sliding bearing - Google Patents

Abstract

The invention relates to mechanical engineering, in particular, to a sliding support, and can be used in friction units where automatic wear compensation is necessary, especially in small supports with increased rotational speed. The purpose of the invention is to improve the performance of the slide bearing. The slide bearing includes a housing, a shaft journal and a bearing sleeve surrounding it, which, when fitted, fit with a guaranteed tension and with a layer of lubricant between them, and tapered bushings. Rings are rigidly mounted on the trunnion of the shaft, coupled with a gap on the outer surfaces with the inner cylindrical surfaces of the conical bushings. The conical bushings are made with self-braking threads of different directions. As the bushings wear, the shaft moves in the direction of the load, until the rings rigidly mounted on the axle of the shaft come into contact with the corresponding surfaces of the tapered bushings. The latter will then rotate due to friction in the direction of rotation of the shaft. The tapered bushings, rotating, move towards each other in the axial direction and create additional tension g between the sleeve and the shaft when moving. As a result, the axis of rotation of the shaft returns to its previous position, and the rings rigidly mounted on the shaft will come out of contact with the corresponding surfaces of the tapered bushings. 2 Il.

Description

The invention relates to mechanical engineering, can be used in friction units where automatic wear compensation is necessary, especially in small-sized supports with an increased rotational speed and is additional to the main ed. St. No. 1254217.

The purpose of the invention is to improve the performance of the slide bearing.

FIG. 1 shows a section A-A in FIG. 2; in fig. 2 shows a section BB in FIG. one.

The slide bearing includes a housing 1, a shaft pin 2 and a bearing sleeve 3 that surrounds it, which are matched by fit with a guaranteed tension and

between which there are layers of lubricant 4, conical sleeves 5 installed at the ends of the support with the possibility of axial fixed movement in the housing 1. Bearing sleeve 3 is made with slots 6 on both sides, on the outer side of sleeve 3, respectively, the cut sector 7 is made protrusions offset to the edges of sectors 7 and in contact with the inner surfaces of the tapered sleeves 5, the tapered sleeves 5 are made with opposite threads (right and left) with a helix angle of elevation that provides self-locking tion, and on the axle shaft 2 rigidly mounted rings 8 so that they form

ate

О5 Јъ Ю

to

TO)

predetermined clearance b with corresponding surfaces of tapered bushings 5.

Bearing slide works as follows.

When the axle shaft 2 rotates, a liquid or plastic lubricant 4, due to viscosity 5, is drawn into the microgap with liquid lubricant and then proceeds to the section with boundary lubrication (ag), while the flow of lubricant 4

5 will move axially and the former tension will be restored between the axle of the shaft 2 and the bearing sleeve surrounding it, the axis of the shaft 2 will take the same position, and between the cylindrical surfaces of the tapered bushings 5 and the rings 8 rigidly mounted on the axle of the shaft 2 will be set in advance set gap 6.

As a result of self-regulation, the cone shakes the deformed sectors 7, the necessity of period is eliminated — as a result of which a stable closed layer (film) of the lubricant 4 is formed around the entire circumference of the conical adjustment of the tapered bushings.

high bearing capacity for the perception of external forces.

creating a guaranteed tension, which improves the performance of the slide bearing.

15

As the sleeve 3 is worn, the axis of the shaft 2 will move in the direction of the radially Sliding bearing on the bus. St. No. 1254217,

acting force. The gap 8 between the rings is different in that, in order to improve

8, rigidly mounted on the axle shaft 2 operational characteristics, it and the corresponding surfaces of the cone-20 is equipped with rigidly mounted on

of the sleeves 5 will be reduced and the shaft shaft rings, located with

 at the point of contact of the rings 8 with a corresponding gap on the outer surfaces with the inner surfaces of the tapered sleeves 5 with arising cylindrical surfaces

there is no frictional force that will rotate the cone-sleeves, while the conical

The sleeves 5 in the direction of rotation of the sleeves are made with self-braking

shaft 2, whereby the tapered bushings are threaded in different directions.

5 will move axially and the former tension will be restored between the axle of the shaft 2 and the bearing sleeve surrounding it, the axis of the shaft 2 will take the same position, and between the cylindrical surfaces of the tapered bushings 5 and the rings 8 rigidly mounted on the axle of the shaft 2 will be set in advance set gap 6.

Self-regulation of the cones eliminates the need to periodically adjust the tapered bushings for

This eliminates the need for periodic adjustment of the tapered bushings for

creating a guaranteed tension, which improves the performance of the slide bearing.

15

Claims (1)

Invention Formula -C Aa vshzhshshshshsht figure 1 / N