SU361330A1 - ELASTIC CENTRIFUGAL COUPLING - Google Patents

Description

one

The invention relates to the field of mechanical engineering and can be applied in precision machines and devices in which the transmitted coolant moment is relatively small and to which increased demands are made on the uniformity of rotational motion. In such machines and devices a certain misalignment of the connected shafts is possible.

A centrifugal elastic coupling is known, comprising a driving and driven half coupling, each of which is designed as a hub with two oppositely directed shanks, which together form a crosspiece and carrying a centrifugal mass in the form of an elastic ring.

The purpose of the invention is to increase the clutch compliance, simplify the design, allow the simple separation of the connected shafts, as well as ensure easy replacement of the coupling coupling element (elastic ring) in case of wear or damage.

In the proposed elastic centrifugal clutch, fingers are mounted on the ends of the shanks of the coupling halves, and the ring is installed without fastening, it covers the fingers of the driving half coupling and rests on the fingers of the driven coupling half.

FIG. 1 shows the described coupling; in fig. 2 is the same; the section along A-A in FIG. one.

The drive half coupling is a hub / s with two oppositely directed shanks 2 and 3. Cylindrical pins 4 are pressed (fixed) at the ends of both shanks, the axes of which are parallel to the axes of the connected shafts. The free ends of the fingers end with sides. The design of the driven half coupling is similar to the design of the leading one. It also consists of a hub 5 and two shanks 5 and 7 with fingers 8.

The driving and driving half couplings are connected by means of an elastic spring ring I which, after mounting, works in a slightly extended position, resting on the inside with two cylindrical pins 4 of the driving half coupling and outside on two cylindrical pins 8 of the driven half coupling.

In the static position and during rotation without load, the axis of the shanks 2 and 3 of the leading coupling half is strictly perpendicular to the axis of the shanks b and 7 of the driven half coupling, and the angle is 90 °. Under the influence of torque

The angle a decreases, and the nature of the deformation of the spring ring varies slightly.

With increasing speed under the influence of centrifugal forces, the ring tries to take the form of an ideal circle (as well as

under the influence of restoring potential forces), increasing the angle a to 90 °.

at a certain torsional load and a certain value of the angular velocity, the corresponding dynamic equilibrium of the coupling is established, characterized by the angle of deformation a.

In the case of small torsional vibrations of the driving or driven half coupling at the points of contact of the elastic ring with the fingers, slip does not occur, only small bending vibrations of the ring are observed.

The centrifugal force introduces a self-tuning element (rotational independence) and gyro coupling of the coupling halves and is the cause of the increased anti-vibration properties of the coupling.

Prev: Invention

Elastic-centrifugal clutch, containing the leading and driven half-couplings, each of which is made in the form of a hub with two oppositely directed and needles, forming together a cross and bearing a centrifugal mass in the form of an outer ring, that clutches and grooves, at the ends of the shanks of the coupling, the fingers are mounted, and the ring is installed without fastening and extends around the fingers of the driving coupling half and rests on the fingers of the driven coupling half.

.

F1l.g.2