| 摘要 |
Counter-angle head for of a small-power motor with a speed reducer composed of the body of the counter-angle head, a mechanism for fixing and releasing the tool, and a speed reducer. Characterized in that: the speed reducer located in the upper part of the head is composed of untypical toothed gears, a bevel gear (3) and a worm gear (4), with the right angle between the axes of rotation of the worm (5) and the wormwheel (2) and between the axes of rotation of the driving wheel (6) and the driven wheel (7). The wormwheel (2), which forms a unit with the sleeve of a clamp (8), is mounted rotatingly in bearings (11 and 12) and they, in turn, are mounted in an opening (13), and the wormwheel (5), connected disconnectingly with the shaft of the worm (10) terminated, on both ends, with pins (14 and 15) is located, from one side, in the bearing opening (27) of the bearing bushing (16), and, from the other side, in the bearing opening (17) of the nut (18), which is connected via a screw thread with the casing (1). Further, the driving wheel (6) is press fitted with the driving shaft (19) placed on bearings in the bearing bushing (20) which in turn is also press fitted in the body of the connector (21); and the driven wheel (7), forming one unit with the shaft of the worm (10), is placed on bearings in the same structural elements as the worm (5). |
