SU1291749A1 - Safety clutch - Google Patents

Abstract

The invention relates to the field of mechanical engineering and can be used to protect machine components from overloads. The purpose of the invention is to increase the reliability of operation by eliminating the cyclical torque. In the coupling half (P) 1, 2 are connected by rollers 3 located on P 1 and covered by an elastic ring (K) 4. Elastic K 4 is connected with P 2 by an automatic adjustment mechanism in the form of centrifugal weights 5 and K 4. The latter is slightly deformed. When the moment is transmitted, there is a gradual transition from the effect of the efforts of the elastic links 7 on K 4 to the action of the centrifugal forces of the loads 5. This causes a smoothly changing K deformation and, therefore, provides a smooth increase (and decrease in case of overload) of the transmitted moment. 1 h. pfl, 2 ill. (L 5 IsD; about 4 WITH FIG. 1

Description

The invention relates to mechanical engineering and can be used to protect machine assemblies from overloads.

The purpose of the invention is to increase the reliability of work by eliminating the cyclicality of the high torque at the start and actuation of the coupling.

FIG. 1 shows the coupling, cross section; in fig. 2 shows section A-A in FIG. one

The clutch contains concentrically arranged half coupling 1 is balanced by the forces of spring-loaded crackers 8 and centrifugal loads-cramps 5. When overloaded, braking half coupling 2, together with it loads loads-brackets 5, the effect of centrifugal forces on the ring 4 decreases, the brackets gradually return, return to the original position, reducing the impact of bevels 9 on the bevels of 6 crackers 8, as a result of which the latter also occupy the distorted coupling half 1 and 2, connected by a locking position. Rollers 3 half-couplings 1 replicated on the half-coupling by bodies 3 rotate-slip through the slightly deformed ring 4, and there is a gradual (rollers), covered by an elastic ring 4, as well as a mechanism for automatic adjustment of the moment, made in the form of centrifugal loads-brackets 5 with bevels. 6 and elastic links 7, in the form of spring-loaded crackers 8 with bevels 9 and protrusions 10. Loads-brackets 5 are diametrically opposed, rigidly connected to ring 4 and preloaded by springs mounted to adjust the outer half-coupling 2, and elastic link 7 is located and mounted between the brackets 5 on the coupling half 2, while the bevels 9 are in contact with the bevels 6, and the protrusion 10 with the ring 4. In the above

a significant reduction in the transmitted torque.

Vedushi may be the half-coupling 2, then the action of centrifugal forces on the ring 4 comes faster. Otherwise, the operation of the coupling does not differ from the operation in the first embodiment.

Claims (1)

Invention Formula 1. Safety clutch, containing concentrically located coupling halves, connected by vraseni bodies fixed on the inside coupling half, covered by an elastic ring, connected with external fitting, clamping of brackets 5 and crackers of 8 adjustable-5 units with half coupling, characterized in that it is attached. the goal of increasing reliability by eliminating the cyclicality of the torsional moment when the clutch is started and triggered, it The clutch works as follows. In the case where the head is the coupling half 1 with rollers 3, at the beginning of the turn equipped with a mechanism of automatic reguple last rollers 3 gradually involve j. the momenting performed by as The ring 7 is slightly deformed by elastic links. After balancing the circumferential force of the rollers and the effort of preloading the ring 4, centrifugal rings are involved. centrifugal loads and elastic links, centrifugal loads are set diametrically opposite to the outer coupling half and are connected to the ring, and each elastic link is mounted on the outer coupling half cargo staples 5, and as the speed increases, 5 between centrifugal loads and preloaded The spins of rotation increase centro-to the ring. beaming forces “stretching the ring 42. The coupling according to claim 1, hereinafter the axis, the perpendicular axis, the loads are made in the form of brackets with a directional ring 4 crackers 8 resiliently tilted outwardly tilted, elastic 7. There is a smooth change in the shape and the shape is spring-loaded. rings 4 and, therefore, gradual 40 crackers with bevels and protrusions between adjusting the torque to the working bevels, while the bevels of contact are transmitted to the coupling half 2, i.e. they are finished with bevels of staples, and the protrusion - from the elastic moment at which a circle ring. the force of the coupling half 1 is balanced by the forces of the spring-loaded crackers 8 and centrifugal weights 5. When overloaded, braking the coupling half 2, together with it, loads the brackets 5, the effect of centrifugal forces on the ring 4 decreases, the brackets gradually return, return to their original position, reducing the impact of bevels 9 on the bevels of 6 crackers 8, as a result of which the latter also occupy the initial position. Rollers 3 half coupling 1 slip along a slightly deformed reduction in the transmitted torque. Vedushi may be the half-coupling 2, then the action of centrifugal forces on the ring 4 comes faster. Otherwise, the operation of the coupling does not differ from the operation in the first embodiment. Invention Formula 1. A safety clutch containing concentrically located half coupling connected by vrasheni bodies fixed on the inside coupling half, covered by an elastic ring connected with external coupling half, characterized in that, in order to increase the reliability of operation equipped with an automatic control mechanism the momenting performed by centrifugal loads and elastic links, centrifugal loads are set diametrically opposite to the outer coupling half and are connected to the ring, and each elastic link is mounted on the outer coupling half Th / r2 Compiled by T. Orlova Editor O. Yurkovetskaya Tehred I. VeresKorrektor A.T sko Order 217/36 Circulation 812 Subscription VNIIPI USSR State Committee for Inventions and Discoveries I L3035, Moscow, Zh-35, Raushsk nab. 4/5 Production and printing company, Uzhgorod, ul. Project, 4