| 摘要 |
1537002 Driving endless belt conveyers RELIANCE ELECTRIC CO 31 Jan 1977 [15 March 1976] 03878/77 Heading B8A [Also in Division F2] In a drive mechanism particularly for the roller 12 of a belt conveyer system including a speed reducer 40 within the roller and having an input shaft 52, and a coaxial reaction shaft 56 and an output member 80 fast with the roller, smooth starting is ensured by providing a friction disc 72 on the shaft 56 and co-operating with a fixed friction brake head 74 the pressure applied by the brake being controlled in accordance with the load on the conveyer. An auto- matic hydraulic control for the brake is described. A further brake 110 for the roller may be operated with the reaction brake. |
