CS217467B1 - Solid roller cage cage - Google Patents

Abstract

The purpose of the invention is to ensure an increase in the accuracy of the functional dimensions of the cage, to increase the number of rolling elements of the bearing, to make the cage production more productive by saving material and labor and to create a prerequisite for simple automation of the bearing assembly process. The above purpose is achieved by a massive cage which has cylindrical circumferential continuous axial grooves 7 of radius r formed in the body 4 on a pitch circle of radius A and central radial cylindrical relief 8 of inner radius R, while calibrated surfaces 5 are formed at the intersection of the cylindrical circumferential continuous axial groove 7 with the central cylindrical relief 8.

Description

2

The invention solves the massive cage of the roller bearing, with the rolling bodies in the clamping ring body. In the doiteraz known constrictions of massive cages of roller bearings, the rolling bodies are fixed in cylindrical windows which are formed in the cage body by milling. The cage as a whole consists of a cage body, a cage, a cage and rivets, or the rivets replace the pins formed from the cage body. The installation of rolling elements, cage and flange with a bearing ring is carried by the placement of these parts and the crimping of the flange of the cage and the body of the cage either by threads, allelic closure parts of the cage body, thereby forming a removable joint of these parts. The number of connecting rivets resp. drawbar pins suitable for rolling elements. The number of rolling elements and thus the bearing capacity of the bearing are limited by the average connecting threads and by the cross-sectional area of the cage body bridges. The cage production technique is non-permissive, does not make it possible to increase the accuracy of the production of steering windows, which in addition to the precision of the rolling bodies, the outermost and the inner oleate, have a decisive influence on the bearing quality and its service life. The surface of the cage body is unsymmetrically treated by releasing the internal tension. The treatment causes the cage body to be deformed, which makes it difficult to install the cage body with the cage flange and rivets. This drawback is due to the formation of locking pins from the cage body due to the extension of the unsymmetrical cage body. The mounting of the bearing is hard, hard and does not allow the assembly process to be automated.

The above-mentioned drawbacks are eliminated by the massive coating of the roller bearing according to the invention, wherein in the telescopes the cylindrical circumferential continuous axial grooves are formed on the pitch circle, and the centrally radially cylindrical deflection is provided. the calibrated pads formed. An advantage of the massive cage of the roller bearing of the invention is that it allows to increase the accuracy of the functional cage dimensions, to increase the number of rolling bearings, to produce the cage by saving material and to create a prerequisite for simple automation of the bearing process of the bearing.

An example of a massive cage of a roller bearing according to the invention is shown in the accompanying drawings. FIG. 1 is a cross-sectional view of a N-type roller bearing with flanges on an inner ring; FIG. 2 is a sectional view of a N-type roller bearing. FIG. Fig. 3 is a longitudinal sectional view of a guide cage of a N-type cage roller bearing. Fig. 4 is a cross-sectional view of the NU roller bearing with flanges on the outer ring; 5 shows a longitudinal section of a roller bearing of the type NU and FIG. 6 a detail of a longitudinal section of the guide rail of the crescent cage of the roller bearing type NU.

In principle, there are two ways to form the mounting calibration pads 5 and the inner or outer circumferential axial grooves 7. The bearing ring 1, the inner ring 2 and the rolling bodies 3, is a compact cage consisting of an integral annular body 4 in which each of the roller windows 3 of the roller body 3 is formed in the cage body 4 by a portion of the cylindrical conduit axial groove 7 determined by the semicircles R, R | and the radius A of the pitch circle. The centrally radially cylindrical deflection8 with its inner diameter R in the cage body 4 exceeds the inner dimension of the cylindrical circumferential axial groove 7, with the X dimension of the radial cylindrical stripping radius being suitable for the selected radii of the radial cylindrical relief 8 at constant dimensions. the intersection of the two cylindrical surfaces forming the edges 6, which allows the calibrated surface 5 to be formed by betting the edges 6, the mounting calibration dimension Y being smaller with respect to the diameter D of the rolling element 3 by the required mounting overhang P and:

X <Y = D + P where: D is the diameter of the Rolling Body 3 P is the diameter of the Rolling Body Diameter D

3 with respect to the mounting calibration dimension Y y, the mounting calibration dimension, which is formed by the distance of the two calibration plates 5 resulting from the edges 6 being betrayed, whereby for the size of the pitch X of the edges 6 is: x = 2. [/ R2_pa where: r is the radius of the cylindrical circumferential dimension the conventional axial groove 7A is the radius of the pitch circle to which the centers of the cylindrical circumferential axial groove 7R are positioned is the radius of the central radial roller relief 8.

The overlap size P is given by: P = (Ki + K2). D, wherein D is the diameter of the rolling element 3; 'Kt is the coefficient dependent on the thermal expansion of the cage material and the cage installation heating; K2 is a coefficient dependent on the resilient deformation of the cage material

Claims (1)

OBJECT OF THE INVENTION A massive roller bearing cage, formed by an integral annular body, in which each roller guide is formed in the cage body by a portion of a cylindrical circumferential axial groove offset off the center of the cage body by half * spacing of the roller in the bearing and its central radial the inner diameter in the cage body exceeds the internal dimension of the cylindrical o-peripheral continuous axial groove, characterized in that cylindrical circumferential continuous axial grooves (7) of radius (r) are formed in the cage body (4) on the radius (A). a centrally radially cylindrical relief (8) with an inner radius (R), wherein calibrated facets (5) are formed at the point of intersection of the cylindrical continuous axial groove (7) with the central radial cylindrical groove (8).