| 摘要 |
A method and a device are provided for replacing individual idler rollers for conveyors, with which a web belt can be lifted and worn-out or damaged idler rollers in upper and lower runs can be individually replaced. The device includes, separately for replacing the idler rollers in the upper run and in the lower run, a subframe (1) for lifting the web belt (7) and for holding the web belt (7), such that a sufficient clearance is formed for replacing worn-out idler rollers (53) by means of a changing frame (2). A service vehicle is equipped with a lifting apparatus for moving dividing devices. The process steps include lifting the web belt (7), removing the old idler roller (53old), inserting the new idler roller (53new) and lowering the web belt (7). The drawing shows the use of two dividing devices in the replacing of idler rollers in the upper run. |
| 主权项 |
1. A process for replacing individual idler rollers of a belt conveyor, the process comprising the steps of:
picking up a web belt, in an area of an idler roller station, by a subframe inserted between an upper run and a lower run or between the lower run and the ground surface, the web belt and the subframe being lifted together by means of an external lifting apparatus; setting down the subframe, carrying the web belt while maintaining a cross section, on a support frame of the belt conveyor or hanging the subframe, carrying the web belt while maintaining the cross section, on the support frame of the belt conveyor; inserting a changing frame, with an external lifting apparatus, between the upper run and the lower run or between the lower run and the ground surface and picking up an idler roller to be replaced with a pick-up means of the changing frame; leading the changing frame, together with the idler roller, out of an area between the upper run and lower run or between the lower run and ground surface and in a reverse manner, inserting a new idler roller into mounts of the idler roller to be replaced; and lifting the subframe by an external lifting apparatus, to detach the subframe from the support frame and lowering the web belt. |
