SU113378A1 - Elastic clutch variable stiffness - Google Patents

Description

Ksbsbretnye refers to elastic clutches of variable stiffness, having a serpentine. A disadvantage of couplings of this type is the difficulty of making the serpentine springs used in them. In this connection, such couplings, despite their positive positive performance, were not widely accepted.

A feature of the variable-stiffness coupling described here is S that, in order to simplify its manufacture, a serpentine spring is made of circular or rectangular wire wound in several rows on the coupling half, and the bearing elements of the coupling in contact with the spring are p. d of alternating dialmeters located around the circumference of the coupling half.

FIG. 1 shows the proposed coupling; FIG. 2 is a section along LL in FIG. one.

The clutch consists of two coupling halves 1 and 2, fit: 1st on the ends of the connected shafts. Into the radial holes of the coupling halves and rings 5 and inserted 5 variable diameter diameters, which are the bearing elements of the coupling, transmitting the twisting element — a serpentine spring 6 — are made of circular or rectangular wire, wound in several rows on the half coupling between the stifftam. The pins are held in the coupling halves by rings 3 and, more often, by sleeves 7, which are connected to the coupling half with threads of the opposite direction. For assembling and disassembling the coupling, the extreme shafts 6 are threaded on the head. When assembling the coupling, the shafts are screwed into rings 5 and 4. so that they are concentrically located relative to the coupling half. For the Amazka serpentine spring, there are channels .9 and 10 through which the oil is fed under the action of centrifugal force to the serpentine spring. Ripples: Oil is thrown into the gap between the coupling halves.

At low torsional moments, the coils of the lower row spring come into contact with the pins. As the torque increases, the remaining turns start to work, one part of which is deformed according to a linear law, and the other part according to a nonlinear law. The stiffness of the spring with increasing load increases. This to a certain extent prevents the occurrence of torsional resonance.

Subject invention

Elastic coupling of variable stiffness with a serpentine spring. characterized in that, in order to simplify its manufacture ;;, the serpentine spring is made of round or rectangular wire, screwed in several rows of half of the shaft, and the bearing elements of the coupling, in contact with the spring, are a series of pins alternation of diameter, located on the circumference of Polumuft.