文档介绍：附录1
DEVELOPMENT OF THE CABLE BELT CONVEYOR
lan Main Thomson BSc (Eng.)
Managing Director
Cable Belt Ltd
Summary
The early development of belt Conveying is discussed showing how the Cable belt system developed from the same requirements. The various design concepts pared with those of the troughed belt conveyor highlighting the areas of advantage and disadvantage.
The areas of conveying where the Cable Belt system is most useful and the likely developments are outlined. These and other developments have led to many major conveyor installations including a 2 flight 52 km system being constructed to the Cable Belt design.
Development of the Cable Belt Conveyor
The origin of the belt conveyor is not easy to clearly identify but there are references to simple forms as early as 1795. However it was not until the dramatic increase in the world trading of grain after 1850 that major improvements were made¹.
The first form of conveyor was a flat belt running in a trough which was quickly improved by the introduction of straight idlers to replace sliding friction by rolling friction. The need to increase the capacity and centralise the material load led to the appearance at the same time of both of the mon forms of heavy duty belt conveyors, the troughed belt conveyor and the Cable Belt conveyor.
In the late 1860's the use in troughed belt conveyors of straight rollers with conical or dished ends was obsolete until the early 1890's. The introduction in 1865 of inclined straight 'concentrator' idlers led to the conveyor in the Thomas Robins Jnr. patent of 1896, which is regarded as the first troughed belt conveyor. Since that date whilst there have been many important improvements in the detail of the idler, belt and drive construction, the basic concept of the troughed belt conveyor is the same as outlined in the pleted in the early 1900's.
The Cable Belt conveyor principle whilst of earlier origin was not developed in a truly essful form until 1952.
One of