Conveyor belt tensioning device which
Common tensioning device with a spiral tensioning device, gravity tensioning device, tensioning device fixed winch, automatic tensioning device, each have their own advantages and disadvantages, they can be applied separately on different without the belt conveyor.
Helix structure simple tensioning device, the tensioning stroke is too
small, only fit for short intervals conveyor, generally less than 80m
when the captain selection, drawback is that when the tape stretch
themselves not automatically tighten.
Gravity tensioning device structure is the most simple, the most widely
used as a tensioning device. It is used to automatically tighten the
weight, because weight by weight taut, it can guarantee that the
tensioning force in a variety of conditions remain constant, can
automatically compensate for the elongation of the tape. Gravity
tensioning device is characterized by constant tension force, tension
variable displacement, it is bonded to the fixed long-distance
transport, security and reliability advantage is high, the disadvantage
is not adjustable tensioning force, large space requirements in space by
places restrictions can not be used.
Tensioning device is fixed winch winch to tighten the use of small,
usually with worm gear winch drum driven to wrapped around the rope so
taut tape. Strengths of this tensioning device is small in size, big
rally, it is widely used in underground belt conveyor. The disadvantage
is that it can only produce constant tension according to the required
tightening force after it is set, the tensioning force can not be
adjusted automatically when the winch and control systems subject
appearing on the tape machine can not produce a constant tension force
or tension power failure, safety and reliability is relatively lower.
Automatic tensioning device not only can automatically adjust the
tension of the drum according to the active traction, but also to
compensate for the elongation of the tape. Automatic tensioning device
consists of motor, brake, reducer, rope drum and other components, using
a large tension tensioning device tensioning the belt, equipped with
tension sensor for measuring the belt tension when the belt tension
changes than normal conveyor the range of operation, automatic
tensioning device moves quickly, adjust the belt tension, ensure the
normal operation of the conveyor. Automatic tensioning device with
self-moving tail with the use, can be achieved under the premise of the
conveyor downtime, mobile telescopic belt conveyor and the tail, greatly
improving the efficiency of transport conveyor. Automatic winch
tensioning device consists of a pressure sensor to automatically control
the tension of belt conveyor required operating conditions of the size
of the fluid pressure in the hydraulic tensioning device consists of
hydraulic cylinders produced by applying tension to the belt conveyor
force, according to the tape machine operating conditions require
adjusting the tightening force size.
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