WORM REDUCTION GEARBOX Russian patent published in 2010 - IPC F16H1/16 

FIELD: machine building.

SUBSTANCE: invention can be used in drives at high axial loads on screw (for several thousands of kilograms) and its higher revolutions (about 1500 revolutions per minute and more). Worm reduction gearbox contains screw (4), rest of which contains main bearing assembly (5), receiving axial and radial load. External not rotating rings of bearings (7, 8) of this main assembly interact to resilient members (9), second butts of which rest into butt supports (10), rigidly connected to casing (1). Bearings (7, 8) by inner rotating rings interact by means of resilient members to butt supports (13) of screw tail (4). Bearing (7), which is the first thrust face, treansfers it to resilient member (9), which at achievement of part of axial effort, for which it is calculated bearing starts deformation, and screw starts displacement lengthwise axis so that butt support (13) of screw starts impact on resilient member of rotating ring of the second bearing (8), and at selection of clearance in 0.02-0.03 mm between butt of casing of resilient member and rotating ring, bearing starts perceive its part of load.

EFFECT: invention provides perceiving of axial load at high revolutions of screw.

5 cl, 2 dwg