SU1409794A1 - Rolling-contact support for rotary motion - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to mechanical engineering, in particular, to rolling bearings. The goal is to increase reliability by eliminating axial and radial play. The support consists of a fixed body, a moving element and two groups of balls placed between them. One group of balls takes the axial load and is placed between the ends of the fixed body and the movable element. The other is between the surfaces of the conical bore of the housing and the V-shaped groove of the adapter ring, which is joined along the conical surface with the threaded ring. The latter, moving along the axis of the movable element, locks the second group of balls between the surfaces of the conical hole and the V-shaped groove of the transition ring, thereby eliminating the radial and axial play in the support. 1 il.

Description

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The invention relates to mechanical engineering, namely to rolling bearings of rotational motion.

The aim of the invention is to increase reliability by eliminating axial and radial play.

The drawing shows a rolling support for rotational movement.

The support consists of a housing 1, a movable element 2 in the form of a sleeve with a flange, and two groups of balls 3 and 4. A thread is mounted on the outer cylindrical surface of the rotating element, on which is mounted a threaded ring 5 with an outer conical surface that mates with the conical surface of a smooth ring 6 with a V-shaped groove 7 on the outer cylindrical surface. A group of balls 3 is placed between the surface 8 of the housing and the end surface 9 of the flange of the movable element, a group of balls 4 is placed between the conical surface 10 of the housing 1 and the surfaces of the V-shaped groove 7. Separators 11 and 12 are provided for uniform distribution of balls. Counter nut 13 serves to lock the threaded ring 5.

The operation of the support consists in the backlash-free rotation of the movable element 2 relative to the housing 1.

The elimination of gaps between the balls of each group and their support surfaces is achieved as follows.

When tightening the threaded ring 5 to the thread of the movable element 2, the ring 6 moves progressively along the axis until the radial gaps between

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five

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five

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a group of balls 4, the surface 10 and the surface of the V-shaped groove.

Upon further tightening of the threaded ring 5 onto the threads of the movable element 2 due to the impossibility of axial movement of the ring 6, the movable element 2 is set in motion, which moves until the gaps between the group of balls 3 and the surfaces 8 and 9 are completely eliminated.

In the support thus assembled, there are no both radial and axial gaps between the movable element and the housing.

Claims (1)

Invention Formula Rolling bearing for rotational motion, comprising a fixed body with an opening, a movable element made in the form of a sleeve with a flange, and two groups of balls placed between them, one of which is mounted between the flat ends of the body and the flange, characterized in that increase in reliability, it is provided with concentrically arranged threaded and smooth rings; a thread is made on the outer surface of the sleeve of the movable element; the threaded ring is made with a conical outer surface and inner thread a battle mating with an external thread of a movable element, and a smooth ring with a conical inner surface mating with a conical outer surface of the threaded ring, and with a V-shaped groove on its outer cylindrical surface, the opening in the housing is made conical between the surfaces of which naked V-shaped groove placed another group of balls.