Dip angle bearing universal coupling

Abstract

The invention discloses a dip angle bearing universal coupling which comprises an inner ring, an outer ring and a sealing cover. A groove is formed in one end of the inner ring, a bulb is arranged at one end of the outer ring and is installed in the groove, a plurality of arc-shaped grooves are formed in the side walls of the bulb and the groove correspondingly, a plurality of cylindrical roller ways are composed of the corresponding arc-shaped grooves in the side walls of the bulb and the groove, the center lines of the cylindrical roller ways are arc curves, and balls are arranged in the roller ways; and the outer ring is sleeved with the sealing cover, and the sealing cover is connected with the opening end of the groove of the inner ring. The dip angle bearing universal coupling has the higher bearing capacity, transmission accuracy, transmission efficiency and high anti-impact capacity; and the service life is long.

Description

technical field [0001] The patent of the present invention is a kind of tilt bearing universal coupling. Background technique [0002] The existing cross raceway coupling can realize the transmission of large load and large deflection angle, and it is the replacement technology of the existing cross cardan, drum-shaped tooth and universal raceway ball couplings. But there are also certain defects, such as the deflection angle between the central axis of the inner ring gear or the outer ring gear and the center axis of the raceway cylinder is too small, the force on the balls is unbalanced, and the pure rolling of the balls cannot be achieved when the angle is too large, which is sliding friction , At the same time, when there is a deflection angle transmission, the impact caused by the coupling's own weight and external force reduces the scope of use of the coupling. [0003] For example, the cross-race ball coupling with the authorized announcement number "CN101660572" bel...

AI Technical Summary

Problems solved by technology

The main defect: when the deflection angle between the central axis of the inner ring gear or the outer ring gear and the center line of the raceway cylinder is too small, the force on the balls is extremely unbalanced, which reduces the bearing capacity; when it is too large, the balls do sliding friction in the raceway, reducing In the case of large deflection angle transmission, due to the limited space size, the diameter of the straight raceway can only be reduced, which reduces the bearing capacity, the fixed axis is not positioned, and the ball cannot be circled due to the axial offset of the coupling due to self-production. The universal center moves in a central star-shaped trajectory, which generates vibration and reduces transmission accuracy and efficiency

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