Slant support type roller clutch combined type belt wheel

Abstract

The invention relates to a combination belt pulley used for the sprag roller clutch assembly, which is composed of a pulley (1), a spray roller clutch, an internal sleeve (5), a rolling bearing (6), an internal retainer ring (7) and an external retainer ring (8), wherein a set of sprag roller clutch is arranged in the multi-wedge belt pulley (1), the clutch is composed of an outer ring (2), a roller (3) and a retainer (4), two sealed rolling bearings (6) are arranged at both sides of the clutch and are supported by the internal sleeve; the internal retainer ring (7) and the external retainer ring (8) are respectively used for the axial location of the rolling bearing (6) on the internal sleeve and the belt pulley, a keyway or a spline is designed on the inner surface of the internal sleeve to match with the main shaft of the driven auxiliary device so that the torque can be transferred. The invention can make the driven auxiliary device such as the generator to be released from the transmission system instantly when the main shaft speed of the engine decreases, which can effectively solve the problems of great vibration noise of the belt, serious abrasion and the reduced service life of the belt caused by the torsional vibration of the crankshaft.

Description

technical field [0001] The invention belongs to the technical field of combined pulleys, and in particular relates to a combination pulley of a diagonally braced roller clutch. Background technique [0002] During engine combustion, piston engines generate unwanted crankshaft torsional vibrations that interfere with the operation of the entire powertrain. It is almost impossible to prevent this torsional vibration, and it will inevitably be transferred to the V-belt that drives the engine auxiliary device such as a generator, and the service life of the belt will be shortened; in addition, the torsional vibration of the engine shaft will constantly make the belt The transmission accelerates or decelerates, and continuously accelerates or decelerates the driven auxiliary device, which causes those driven auxiliary devices with relatively sluggish torque to consume a large maximum load on the auxiliary drive, resulting in loud noise, Belt vibration over the full length of the...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, the present invention provides a sprag type roller clutch combined pulley, which can instantly disengage the driven auxiliary device such as the generator from the transmission system when the engine shaft speed decreases, thereby effectively solving the problem of the crankshaft. The problem of belt vibration noise caused by torsional vibration, severe wear and reduced belt life

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