| 摘要 |
A carriage for a mobile storage system, including a frame having an inverted U-shaped cross section, including two downwardly depending sides extending the length of the frame. A drive shaft is journaled to the frame and rotated by a prime mover. A drive wheel affixed to the drive shaft rotates with it. A driven shaft, journaled to the frame and oriented parallel to the drive shaft, carries a driven wheel within the frame, for moving the carriage along the rails. A drive chain or belt is provided for transmitting power from the drive wheel, via the driven shaft, to the driven wheel. The driven shaft is journaled to the frame by means of flangette bearings, each bearing affixed to a respective offset mounting bracket. Each bracket is affixed to one of the frame sides, there being insufficient clearance between the driven wheel and the frame sides for the placement of the flangette bearings. The tension of the drive chain or belt is adjusted by a tensioning bracket slidably connected to the frame, permitting sliding movement of the tensioning bracket transverse to the drive chain or belt. A tensioning block is affixed to the bracket, and a bolt is threaded to the frame for sliding the tensioning block toward and away from the drive chain or belt. |
