| 摘要 |
Conveyor-belt drive device, particularly for a heat-treatment furnace, in which the conveyor belt 5 passes over a first pulley 2 arranged downstream of the treatment furnace and over a second pulley 4 arranged upstream of the furnace with respect to the direction of displacement of the belt, the first pulley 2 being a drive pulley, driven by a first electric motor 11, characterised in that the second pulley 4 is also driven by a drive device 12, 13, 14, 15, 16, 17, 18, 19, 20 with constant torque. <IMAGE>
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