SU1390456A1 - Safety ball clutch - Google Patents

Abstract

The invention relates to the field of mechanical engineering and can be used in drives and gears as a torque limiting clutch. The goal is to expand operational capabilities by providing reverse torque transmission. On the butt ends of the coupling halves facing each other, which are pressed against one another by the spring, the grooves (K) 12, 13 of a wavy shape with a smoothly varying depth, respectively, are made. A separator 15 is installed between the coupling halves with open radial grooves 16. Ball connecting elements 14 are located in the combined K 12, 13 and groove 16, respectively. When the coupling is triggered, the ball 14 stops at K 12 and moves along the groove 16, runs K 13. 3 il.

Description

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Ichobrotenenne is related to mechanical engineering and can be used on drives and gears as a clutch, betting about the moment.

The purpose of the invention is to enhance operational capabilities by providing reverse torque transmission.

FIG. 1 shows a coupling, a partial incision; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a diagram of the moment of operation of the coupling.

The clutch contains a drive shaft 1, on which the coupling half 2 is set loosely by means of a sleeve 3 and a thrust bearing 4, also a driving half coupling 5 connected to the shaft 1. In the driving 5 and driven 2 coupling half there are made longitudinal through holes 6 and 7 in which With the help of the fingers 8 and 9, the torque transmitting disks 10 and 11 are installed, on the ends facing each other of which the closed wave-shaped grooves 12 and 13 are made with a smoothly varying depth — the greatest at the minimum distance R, the smallest at the maximum distance n and R from the center. The balls 14 are located in the separator 15 in the form of a flange bushing freely mounted on the shaft 1. The separator has radial open grooves 16 for mounting and radial movement of the balls 14, which are also located in the aligned grooves 12 and 13.

On the driven coupling half 2, the sprocket 17 and the protective casing 18 are rigidly mounted, and the oil seal 19 is installed in the leading coupling half, and it is spring-loaded in the axial direction by a spring 20 installed between the coupling half 5 and the lid 21, and the force is adjusted by the nut 22.

MyiJiTa works as follows.

In normal operation, the leading half-coupling 5 transmits movement through the interaction of the balls 14 with the walls of the grooves 16, the grooves 12 and 13 to the driven half-coupling 2. With an increase in the moment more than the allowable coupling half stops, and the coupling half 5 rotates, simultaneously moving to the right, compressing the spring 20 , while the grooves 12 and 13 are displaced one relative to the other (Fig. 3), while the ball 14, stopping in the groove 12, runs around the groove 13, moving simultaneously along the groove 16.

The proposed design allows the balls to roll along profiled grooves, thereby eliminating friction, sliding and reducing dynamic loads, which leads to an increase in reliability and accuracy of response to the same degree in the forward and reverse directions of rotation.

Claims (1)

Claims of the invention Safety ball clutch, containing one-sided and one-sided coupling half-coupled with closed grooves on facing ends facing each other, a separator made in the form of a flanged bushing with open radial grooves, and rotation bodies located in the coupling half-couplings. separator, characterized in that, in order to expand operational capabilities by providing reverse torque transfer, the grooves are made of a wave-like shape with a smoothly varying depth, the greatest at the minimum distance from the center, the shortest at the maximum distance from the center, and the balls are in aligned the grooves of the coupling half. Fig /} J3 .2