Shaft-mounted reduction drive mechanism |
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| 申请号 | US3600977D | 申请日 | 1970-04-10 | 公开(公告)号 | US3600977A | 公开(公告)日 | 1971-08-24 |
| 申请人 | NELSON H BOGIE; | 发明人 | BOGIE NELSON H; | ||||
| 摘要 | A drive mechanism including a frame suspended upon a driven roller shaft, and a two-stage reduction assembly and drive motor mounted on the frame. The first reduction stage comprises a worm wheel and a worm driven by the motor, and the second reduction stage comprises a planetary gear assembly coupled to the worm wheel and the roller shaft. | ||||||
| 权利要求 | 1. A reduction drive mechanism for a roller comprising: a. a roller shaft fixed to a roller and projecting beyond one end of the roller, b. shaft bearing means supporting said shaft for rotary movement, c. a frame suspended on said shaft to permit rotary movement of said shaft relative to said frame, d. a ring gear fixed to said frame concentrically of said shaft, e. a planetary carrier fixed to said shaft, f. a plurality of planetary gears rotatably mounted on said carrier and meshing with said ring gear, g. a sun gear rotatably mounted concentrically on said shaft and meshing with said planetary gears, h. a worm wheel fixed to said sun gear for rotatable movement concentrically on said shaft, i. a worm meshing with said worm wheel, and j. drive means on said frame for rotating said worm. 2. The invention according to claim 1 in which said frame is provided with bearing means rotatably receiving said shaft. 3. The invention according to claim 1 in which said frame comprises an elongated platform extending laterally and substantially normal to the axial plane of said shaft, said worm extending substantially parallel to said platform, and said drive means comprising a motor mounted on said platform and drivingly connected to said worm. 4. The invention according to claim 3 further comprising torsion bar means connecting said platform to a stationary object. |
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