| 摘要 |
FIELD: machine building.SUBSTANCE: invention relates to machine building, particularly, to machine parts, and can be used in tooth gears. Gear wheel comprises hub (1), the body in the form of a pair of disks (2) and (3) and a rim made of separate teeth that are not connected to each other, fixed by their ends between the disks. Disks (2) and (3) are fixed on both ends of the hub and have the outer radius equal to radius Rof the wheel top circle. Each tooth is made of a strip with the width equal to the one of the toothed rim. This strip is bent tooth-shaped to make with its outer surface the tooth surface, identical to the one designed for the given wheel tooth - tops (4) of the tooth and working sections (5) and (6) of side surfaces located between the top circle of radius Rand the main circle of radius R. Lagging in the direction of wheel rotation ω side surfaces of all teeth - below the main wheel circle - are oriented along radii (8) of the wheel and are connected in its entire width to ring (9).EFFECT: higher quality of lubrication is achieved.1 cl, 2 dwg |
