SU898150A1 - Rolling contact bearing - Google Patents

Description

one

The invention relates to mechanical engineering, in particular to radial ball bearings, and is intended for use with a constant in load direction, one rotating and one fixed ring in the bearing assemblies of various devices, for example, in gearboxes, electric motors, gear boxes of automobiles, tractors, machine tools and etc.

A rolling bearing is known, which includes outer and inner rings with rolling bodies between them 13.

The disadvantages of the known bearing are reduced dynamic load carrying capacity and extreme speed due to correspondingly insufficient number of rolling bodies in the bearing and increased friction of the balls on the side surfaces of the grooves. Increasing the number of rolling bodies does not allow a limited filling angle.

The purpose of the invention is to increase the dynamic load capacity and the maximum speed of the bearing during its operation with a constant in the direction of the load and one rotating ring.

This goal is achieved by the fact that in a rolling bearing containing outer and inner rings with rolling bodies between them, the cross section profile of the raceway of one of the rings is made with a variable depth.

FIG. 1 shows a rolling bearing; FIG. 2 - the same section

10 in FIG. 3 shows section A-A in FIG. 2

The bearing contains outer 1 and inner 2 rings, rolling elements (balls) 3. Rings 1 and 2 have you; radially filled swings

15 4. At the same time, the raceway of the outer ring 1, which is stationary when the bearing is in operation, has a variable depth h along the length of the ring, the maximum depth of the raceway

20 corresponds to the depth of the standard bearing raceway. This is achieved by the fact that the hole of radius .R in the outer ring 1 is made with an offset of 6 relative to the axis of the raceway. The outer ring 1 is installed in such a way that the maximum depth h of the track of pumping 4 corresponds to the zone of the most loaded rolling body 3. At the same time, the ring 1 is fixed in the bearing assembly from

thirty

cranking. The position of the ring 1 corresponds to a vertically downward load P (Fig. 2}.

When the bearing is in operation, the inner ring 2 rotates at a certain angular velocity UJ, and the balls 3 roll along the raceways (lower part of the grooves) of the rings 1 and 2. The load acting on the bearing is perceived by the balls 3 and the raceways of the rings 1 and 2. With this loading area stationary ring 1 is its lower half.

The increase in load capacity is achieved due to the bearing of the proposed design compared to the known larger filling angle. This is ensured due to the possibility, when bearing assembly, to displace the inner ring 2 relative to the outer ring 1 by a larger amount than the known one, which makes it possible to install a larger number of balls in the bearing of the proposed design or to increase their diameter. The increase in the limiting rapidity of the proposed bearing is achieved by varying the depth of the raceway 5 of the outer

rings, which reduces the friction of the balls 3 and provides a better supply of lubricant to them.

The technical and economic effect of the proposed bearing in comparison with the known one is to increase its dynamic load-bearing capacity and, as a result, all other conditions being equal, increase its durability.

Claims (1)

Invention Formula Rolling bearing containing outer and inner rings with bodies 15 rolling between them, characterized in that, in order to increase the load capacity and increase speed, the cross-sectional profile of the rolling track of one 20 of the rings are made with variable depth. Sources of information taken into account during the examination 1. Beizelman RD. and others. Rolling bearings. Directory. Mashgiz, 1975, p. 42 (prototype).