COUPLING Russian patent published in 2008 - IPC F16D43/20 F16D19/00 F16D9/00 F16D11/00 

FIELD: engines and pumps.

SUBSTANCE: invention can be used in highly loaded whatever machinery, for example, in rolling mills, as a one-way transmission. The coupling incorporates inner (1) casing, outer (2) casings, elastic rods and a wedging body arranged between the parts of inner (1) casing. Outer (2) casing is made in the form of a hollow cylinder with lock (5) and thrust (6) rings in its space at end sections. Inner (1) casing is made in the form of two barrels, i.e. extreme (7) and inner (8) and located in the space of outer (2) casing to rotate around the axis of symmetry of the coupling and axially move between thrust (6) rings. Extreme (7) and inner (8) barrels match with their end face sections (9 and 10). Equal-depth triangular recesses are made on the side of matching end face sections of extreme (7) and inner (8) barrels. The said recess longer side mates with matching end face section of the barrel, the other two sides are mutually matched along the circumference. In the formed holes in extreme (7) and inner (8) barrels a wedging body pair (4) is tangentially arranged at the angle to the matching plane of end face sections (9 and 10). Every body in the form of arc-like elastic steel band (4) with rounded off ends is orthogonally matched with short sides of recesses on the cylindrical outer surface of extreme (7) and inner (8) barrels. Driving (21) and driven (22) half-couplings are arranged in the space of extreme (7) and inner (8) barrels and match with them by outer teeth (23, 24) of driving (21) and driven (22) half-couplings and internal teeth (25, 26) of extreme (7) and inner (8) barrels. Extreme (7) barrel of inner (1) casing are located in the space of outer (2) casing and matches with thrust ring (6) and the teeth of driving (21) half-coupling. Inner (8) barrel of inner (1) casing is matched with ends (27, 28) of preloaded elastic rods (3) and with teeth of driven (22) half-coupling. Here elastic rods (3) match by local recesses (29, 30) with end face section of internal (8) barrel and thrust ring (6) arranged nearby second lock ring (5). The length of the aforesaid wedging body (4) exceeds the width of teeth (24) of driven (22) half-coupling.

EFFECT: transmission of high torques, higher reliability, longer life.

4 cl, 4 dwg