The Pulley Diameter Analysis of the Belt Conveyor

In the designing of belt conveyor, the correct selection of pulley diameter is of great significance. The conveying belt use conditions improve with the increase of the pulley diameter. However, with the same other conditions, increasing the pulley diameter will correspondingly increase its weight, the transmission ratio,amount and size of the reducer. Therefore, the pulley diameter should not be too small to ensure delivery with normal operating conditions. Thus, traditional pulley diameter directly affects the whole cost and weighting the driving device of the conveyor belt.

In the selection of the pulley diameter, the factors below are generally considered:

1. The thickness of the conveying belt and the bending stress related to the thickness when it enlaces the pulley.
2. The total stress that the conveyor belt bears, including the pulling stress and the bending stress.
3. The maximum or average unit stress between the conveyor belt and the pulley surface.
4. The circle times that the conveyor belt bears bending load, the enlacing methods and number of its rolling the pulley.
5. The type of the conveyor belt and installation site.

For more information, please visit http://www.pkbeltconveyor.com.

How to Select Model of Belt Conveyor

Belt conveyor is a continuous material delivering machinery by rubbing the drive with its main constitute including the frame, conveying belt, pulley, roller, the tightness adjusting device and the gearing device. It can deliver the

material from the primary feeding port to the ending discharging port.

Several aspects listed below are what we should pay attention to in the selection of thebelt conveyor.

1. Weight of the conveying material, external;
2. Dimensions, and handing method;
3. The length of the conveying line and its complex degree;
4. The working condition of belt conveyer and its work shift;
5. the running speed and productivity of the belt conveyor;
6. Special technological requirements.

For more information, please visit http://www.pkbeltconveyor.com.

What are Types Of Belt Conveyor Pulley Surface Coating?

 Belt conveyor pulleys play an important role in belt conveyor, such as transmitting traction for belt conveyor; changing direction of the conveyor belt; increasing the friction etc. Pulley surface coating on one hand,it can protect the conveyor belt from debris hurt ,on the other hand it can increase the friction between the conveyor belt and pulley, ensure normal conveyor belt running direction. 
There are 3 types of surface coating which we commonly used: smooth surface coating, herringbone coating, diamond coating. Usually, Smooth surface coating is used for bend pulley which can increase the service life of pulley, reduce the friction between conveyor belt and pulley cylinder, then the pulley surface will not be corroded by material. Herringbone coating is commonly used for the transmission pulley, since the transmission pulley drives running of conveyor, strong friction will generate on the transmission pulley, so we adopt herringbone coating. Herringbone coating is suitable for the belt conveyor which conveys material in one way,while the diamond coating can be applied to the reversible belt conveyor, which can realize the unloading material bidirectionally.

How to Select Belt Conveyor Pulley?

You need to provide following parameters before you purchase belt conveyor pulley.
1.Diameter of pulley wall(not include rubber thickness):_________mm.
2.Length of pulley wall:___________mm.
3.Diameter of pulley Shaft:_________mm.
4.Length of pulley Shaft:___________mm.
5.Material of Pulley wall:______________.
6.Material of Pulley shaft:_____________.
7.Bearing brand:_____________.
8.Keyless Locking Devices brand:____________.
9.Surface treatment:______________(coating rubber/galvanized/other)
(1)If coating rubber,thickness of rubber:__________mm
(2)Rubber type:____________(herringbone/rhombus/other)
10.Pulley type:_________(ordinary pulley or motorized pulley)

If motorized pulley,please confirm following information:
(1)Motor installation type:______________(exterior installation or interior installation)
(2)Motor Power:_________Kw.
(3)Motor Voltage:3 phase ______V______Hz.

Besides,in order to ensure conveyor pulley to meet your needs,please confirm the conveyor information:
1.Handling Capacity:________t/h.
2.Belt speed:__________m/s.
3.Driven device Power:_____________kw.
It’s better that if you can provide pulley drawings! 

What Should Users Notice before Running the Motorized Drum with Anti-reverse

Recently, we received a feedback from our Thailand client that the motorized drum with anti-reverse of belt conveyor didn’t rotate, here PK Machinery will explain the notice we should note which can avoid this problem effectively:
1.After installation of the whole set belt conveyor, we should check the motorized drum carefully before commissioning, check and make sure the power supply must be identical to the one stipulated by the nameplate.
2.If the motorized drum with anti-reverse, the wires connection must rotate according to the indicated rotate direction.

 

 3.Check if the oil level of the drum body is satisfied before running. The methods are suggested as below:
Rotate the drum body, keep the oil outlet as high as 2/3r, see the following figure, then remove the plug and make sure the oil surface is level with the outlet.
(This is important, if without oil, the motorized drum will occurs much noise, even not rotate, and finally it will damage)