SU1507480A1 - Universal joint - Google Patents

Abstract

The invention relates to rolling production, in particular, to universal hinges of the yellow loaded spindles of rolling equipment drives. The aim of the invention is to increase the load capacity of the hinge, increase its service life and improve the dynamic characteristics of the drives. The lugs 1 and 2 of the coupling halves are interconnected with the trunnions of the crosspiece 3 by means of radial bearings 4 and thrust bearings of rolling, while the thrust bearing rings furthest from the center of the hinge are mounted on the trunnion axles, and the others are mounted on the half-coupling eyelets. This allows you to change the direction of the radial load on the eyes of the coupling halves during the operation of the spindle, the nature of their loading, to reduce the opening of the gaps in them, as well as the beating of the hinge and the spindle as a whole. 2 Il.

Description

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DESIGN RELATIONSHIPS TO ROLLING PRODUCTION, IN PARTICULAR TO THE IMPROVEMENT OF UNIVERSAL TYPES, WITH HIGHLY LOADED SPINDS, OF DRIVES OF THE ROLLING FACILITIES.

The purpose of the invention is to increase the load capacity of the hinge, increase its service life and improve the dynamic characteristics of the drives.

FIG. 1 shows the proposed universal joint, transverse section; in fig. 2 - Scheme of radial loading of the coupling halves.

The universal joint consists of two coupling halves with lugs 1 and 2, crosses 3, 4 radial bearings and thrust bearings containing rolling bodies 7 located between rings 5 and 6. In this case, rings 5 adjacent to the kinematic center O of the hinge are mounted in lugs 1 and 2 coupling halves by means of glasses 8, and the rings 6 removed from it are mounted on the crosspiece 3.

The bearings are locked by means of a lid 9 fastened with bolts 10 to the crosspiece 3. The lugs of the lugs are closed with lids 11. There is a seal 12 in the glass 8. The lugs 1 have root sections 13 that act as stiffeners (Fig. 2) expanding to the axis of the coupling half.

The device works as follows.

When transmitting torque, the lugs 1 of one of the coupling halves act through the radial bearings 4 on the crossbar 3, which in turn acts by means of radial bearings on the lugs 2 of the other coupling half. The radial loads during the operation of the hinge are perceived by the lugs 1 and 2 of the half couplings by means of thrust bearings.

Under the action of the spindle weight, the thrust bearing ring 6, which is remote from the kinematic center, is mounted on the crosspiece, through the rolling bodies 7, acts on the ring 5, which is located closer to the kinematic center O of the hinge and closed on the half coupling half eye, and tends to bend it to the hinge center. In this case, the ribs (tides) of the core part 13 of the lugs work in compression. The total radial load on the lugs is determined by the difference in forces P and O (Fig. 2), where P is the force acting on the half coupling eye, determined by the weight of the spindle (more precisely, the intermediate shaft with the two coupling halves mounted on it) hinge center; O is the centrifugal force acting on the coupling half eye when rotating and directed from the center of the hinge.

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The proposed design of the universal joint increases the load capacity of the joint, extends the service life and improves the dynamic characteristics of the drives.

Claims (1)

Invention Formula Universal joint containing coupling halves with lugs, cross, radial and thrust bearings with rolling elements placed between their rings, characterized in that, in order to increase the load capacity of the hinge, increase its service life and improve the dynamic characteristics of the drives, adjacent to the kinematic center of the hinge Thrust bearings are mounted in the half-coupling eyes, and remote from it - on the crosspiece. FIG. 2