SU826119A2 - Coupling - Google Patents

Description

(54) COUPLING

I

The invention relates to mechanical engineering, in particular for transmitting rotation.

A coupling is known, comprising two coupling halves interacting through tangentially arranged rods 1.

The disadvantage of its appearance is the complexity of the design.

According to the main author. St. No. 602707 is a known coupling comprising two coupling halves with ears and a tangentially located connecting element and a spring connecting them to each other. The connecting element is designed in the form of a rod with spherical roundings on the ends, and the spring is fixed with ends on the coupling half ears, while the latter are made with recesses for the ends of the rod 2.

A disadvantage of the known coupling is low reliability.

The purpose of the invention is to increase reliability by limiting the reverse of the half couplings.

This goal is achieved in that the clutch is provided with stop elements mounted on. coupling halves with a gap, and the grooves on the ears of the coupling halves are made conical, and their depth is greater than the gap between the stop elements.

FIG. 1 shows a clutch cut; in fig. 2 is a view A of FIG. one.

The coupling contains two coupling halves 1 and 2 with ears 3. In the racks of the coupling halves there are conical recesses 4 countersinks in which the spherical ends of the rod 5 are partially recessed. The ears 3 of the coupling half 1 and 2 are pressed together to each other through the rod 5 by means of a spring 6. On the half coupling 1 there are the thrust element in the form of a protrusion 7. Half coupling 2 has a thrust element in the form of a rigidly fixed pin 8. The protrusion 7 and the finger 8 are installed with a gap a providing the angular displacement of the coupling halves 1 and 2, one relative to the other less than the angular displacement at which the spherical end 9 the rod 5 completely extends from the recess 4 in one of the ears 3 of the coupling halves.

The clutch works in the following way.

When the master half coupling is rotated, for example half coupling 1, counterclockwise, the circumferential force through the pin 3 of this coupling half and the rod 5 is transmitted to the eye 3 of the driven coupling half 2. In the case, for example, of an abrupt stop of coupling half 1, coupling half continues to rotate counterclockwise, stretch buckle spring 6. At this moment, finger 8 selects the gap a and comes into contact with the protrusion 7. And since the size of the gap a provides for the angular displacement of the coupling halves 1 and 2, one relative to the other less than the angular displacement at which the spherical end 9 of the ste LS 5 completely out of the recess 4 in one of the coupling halves 3 uschek then .mufty operability is maintained. With stabilization of the rotational rotation of the coupling under the force of the spring 6, the tabs 3 of the half couplings 1 and 2 are again pressed against the spherical ends 9 of the rods 5, which, having moved along the surfaces of the conical recesses 4 in the ears 3 of the half couplings 1 and 2, return the rod 5 to the original position.

The design of the proposed coupling eliminates the loss of performance under operating conditions with variable dynamic loads.

Claims (2)

1. USSR author's certificate number 356387, cl. F 16 D 3/56, 1970. 2. USSR author's certificate No. 602707, cl. F 16 D 3/56, 1975 (prototype). Vida / 7 S