Operate Quiet Nylon Carrying Idler Roller with Structure Details
Applied in Cement Plant
We can manufacture the rollers of diameter 89-219mm length
190-3400mm, which are used in the steel industry, harbor, coal
industry, power industry, cement industry, etc. and we have Passed
CE certification and ISO9001: 2000 certificate. We also can make
any sizes according to your request.
Troughing Carrying Idlers are used for conveying bulk materials.
Usually three rollers in one group are installed on one set. They
are designed and manufactured with troughing angles of 20°,35°,45°.
Diameter:φ89-φ159mm; Tube width: 190-1800 mm.
|Specification of Belt Conveyor|
(Equal Troughing Idler)(mm)
|We also make customized impact rollers and other sizes plastic
rollers as your requests.|
|Specification (mm)||Length (customize) (mm)||Bearing (HRB. FAG.SKF)|
Pipe wall’s thickness(mm)
● Outside diameter run out of roller: 0.5-0.7 mm
● Revolving resistance of roller: 3.3-3.5 N
● The axial movement distance of the roller between the frame is
less than 3 mm
● Applied in temperature: ≤ 80℃
Fig.1 Fig.2 Fig.3
► Fig.1 The rollers indicated by the arrows form the trough in the
conveyor belt either 20°, 35°, or 45°. They only offer load
support, but do not have training effect on the belt.
► Fig.2 This example accounts for the largest single cause of
conveyor belt tracking problems. You will note that the conveyor
belt does not contact the center roll of the troughing idler which
is the only part of the troughing idler that has any training
effect on the conveyor belt. You can turn this troughing idler
until you are blue in the face and you will see no results.
You may usually heard this "My conveyor runs great empty but when I
put a load on it, the belt goes crazy." Well, let's look at our
example indicated by the arrow. There is no center roll contact
until you put a load on the conveyor belt. At this time the weight
of the load makes the conveyor belt contact the center rolls which
are turned in all directions. Now the training effect takes place
and the conveyor belt does what it is told to do by the center roll
of the troughing idler.
► Fig.3 This example shows the correct conveyor belt contact with
the center roll of the troughing idler. the conveyor belt should
not just barely touch the center rolls but should touch hard enough
to flatten the conveyor belt over the whole rolls face.
It may be necessary to shim roller frames several inches to contact
center rolls. Concave curves in conveyors have the tendency to lift
the conveyor belts out of the curves and the troughing idlers,
resulting in Big Problems.