RU2075662C1 - Flexible pin clutch - Google Patents

Abstract

FIELD: mechanical engineering. SUBSTANCE: clutch has two clutch members 1,2 made up as flanges provided with hubs. Flexible members 3 and cylindrical pins 4 are equidistantly spaced from the axis of rotation of the clutch. The pins are immediately positioned in clutch member 1 whereas in clutch member 2 the pins are mounted by the use of flexible members 3. On the outer side of one or both the clutch members is provided with collar 5 with a ring groove wherein spring ring 6 is received. The openings in the clutch parts provided with the collar are through. The clutch part without the collar has dummy openings. EFFECT: enhanced reliability. 2 cl, 5 dwg

Description

 The invention relates to mechanical engineering and can be used in mechanisms for transmitting torque from one shaft to another, located coaxially.

Known elastic finger coupling, which contains two coupling halves made in the form of flanges with hubs, fingers mounted equidistant from the axis of rotation of the device in the through holes of the coupling, while in one of the coupling fingers are fixed rigidly in the conical holes made in it, and in the holes of the other the coupling halves of the fingers are installed using elastic elements (bushings or rings), means for fixing the fingers from axial movement, including an annular groove and a spring ring [1]
The disadvantages of the known device: low-tech design, caused by the complexity of the shape of the fingers having a mating conical surface, a threaded section, a head, increasing the diameter of the workpiece of the finger, the increased complexity of the Assembly of the coupling.

 The objective of the invention is to improve the manufacturability of the design and reduce the complexity of the Assembly.

 This problem is achieved by the fact that in the elastic finger coupling, including two half-couplings in the form of flanges with hubs, elastic elements and fingers installed equidistant from the axis of rotation of the coupling in the half-coupling holes, and means for fixing the fingers from axial movement, including an annular groove and a spring ring, one of the coupling halves is made with blind holes, and the spring ring is flat and is located in contact with the end surfaces of the free ends of the fingers, and the annular groove is made with a shoulder with a hundred the opposite side of the coupling with blind holes.

The beads have a diameter
D _b ≥D _o d _p
where D _{b the} diameter of the shoulder,
D _{about the} diameter of the circumference of the axes of the holes,
d _{p the} diameter of the finger.

 The essence of the proposed device is illustrated by drawings, where shown in FIG. 1 is a longitudinal section of a collar with a shoulder and a locking spring ring on a coupling half in which the fingers are placed directly; in FIG. 2 view A of FIG. one; in FIG. 3 is a longitudinal section of a collar with a shoulder and a locking spring ring on a coupling half in which the fingers are placed using elastic elements; in FIG. 4 view A of FIG. 3; in FIG. 5 is a longitudinal section of a collar with a shoulder and locking rings on both half couplings.

 The coupling includes two coupling halves 1, 2, made in the form of flanges with hubs, elastic elements 3 and fingers 4 mounted equidistant from the axis of rotation of the coupling, moreover, in the coupling half, the fingers are placed directly, and in the coupling half 2 using elastic elements 3. Holes for placement fingers 4 in the coupling half 1 in FIG. 1, 5 through, in FIG. 3 deaf; holes for accommodating fingers 4 with elastic elements 3 in FIG. 3, 5 through, and in FIG. 1 deaf. On the outside of the coupling halves, in which the holes are through (on the coupling half 1 in Figs. 1, 5 and on the coupling half 2 in Figs. 3, 5), collars 5 are made with annular grooves in which the locking spring rings 6 are placed.

In order to ensure reliable fixation of the fingers 4 and the elastic elements 3 from axial displacement (outside the adjustment), the collars are made with diameters
D _b ≥D _o d _p
where D _{p the} diameter of the shoulder,
D _{b the} diameter of the circumference of the axes of the holes,
d _{about the} diameter of the finger.

 During the operation of the coupling, the torque from one of the coupling halves to the other is transmitted by the fingers 4 through the elastic elements 3.

Technical and economic efficiency from the use of the coupling is determined by the following factors: -
the execution of all holes with smooth cylindrical, as well as the use of cylindrical fingers simplify the design of the coupling, reduce the complexity of manufacturing its elements, all this determines the higher adaptability of the design of the coupling, -
the assembly was significantly simplified, its amenities were ensured, and its complexity was reduced.

Claims (2)

 1. An elastic finger coupling containing two half-couplings in the form of flanges with hubs, elastic elements and fingers installed equidistant from the axis of rotation of the coupling in the holes of the half-couplings, and means for fixing the fingers from axial movement, including an annular groove and a spring ring, characterized in that one of the coupling halves is made with blind holes, and the spring ring is flat and located in contact with the end surfaces of the free ends of the fingers, and the annular groove is made with a shoulder on the side, half-coupling with blind holes. 2. The coupling according to claim 1, characterized in that the collar is made with a diameter, D _b ≥D _o -d _p , where D _{about the} diameter of the circumference of the axes of the holes, d _{p the} diameter of the finger.

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