SU504024A1 - Coupling centrifugal - Google Patents

Description

one

The invention relates to mechanical engineering and can be used for reserving electric motors and uncoupling kinematic chains.

According to the main author. St. No. 371363 known centrifugal clutch, having concentrically mounted driving and driven half couplings, which engage with balls under the action of centrifugal forces, which fall into the grooves of the driven half coupling. The balls, hitting the grooves, are scored between the working surfaces - viH half couplings.

However, at speeds above 2OOO 3000 rpm, dynamic loads occur at the moments of jamming and wedging of the coupling halves, i.e., at the moments of their engagement and disengagement, which leads to progressive wear of working surfaces and reduces its service life.

In order to reduce the wear of working surfaces, the described coupling is supplied with

on the elastic ring fixed on the inner protrusions of the driven loluyufta. Y: A different ring reduces the dynamic loads at the moment of coupling and disengagement of the coupling halves.

FIG. 1 shows the described clutch, the cross-section in FIG. 2 shows a section along A-A in FIG. 1.

The coupling consists of a leading coupling half 1 driven coupling half. 2 with grooves 3 on the inner surface, the balls 4 and the elastic ring 5 (for example, made of rubber) fixed on the inner lugs 6 of the driven coupling half. In addition, a magnetic adjusting device 7 is mounted on the drive shaft.

When the driving half coupling 1 rotates, the balls, overcoming the force of the magnets of the adjusting device, under the action of centrifugal force move to the periphery, touch the ring 5 and, bending it, smoothly enter the grooves 3 on the driven

2. Kinematic circuit closed.

When the electric motor is disconnected, the leading popumufta begins to stop, when the elastic ring is ejected, the balls from the grooves push the balls out of the grooves, and the right cylindrical surface without ramps and hollows. This eliminates the hitting of balls on the working surfaces of the popum couplings and their wear.

Claims (1)

Invention Formula Coupling centrifugal auth. St. 371363, characterized in that, in order to reduce the wear on the working surfaces of the coupling by reducing the dynamic loads at the moment of coupling and disengagement of the coupling halves, it is equipped with an elastic ring fixed on the inner lugs of my half coupling : / g. 2