Type and Feature of Belt Conveyor Tension Device

Tension Device is one of the core compositions in the belt conveyor, mainly used to supply certain tension force for the normal operation of the conveyor belt. Therefore, selecting proper tension device is the key to design belt conveyor. There are three types of tension device, in the following the feature of these three device would be introduced.

1. Screw-type tension device

The screw type tension device is installed at the tailing pulley of the belt conveyor and adjust the tension of the conveyor belt through regulating the screw to make it move.

It is generally applied in the belt conveyor with belt length less than 60 meters and small power. The series of belt conveyor tension device including 500mm and 800mm there stow kind.

2. Vehicle-type tension device

The vehicle-type tension device means installing the tail pulley on the movable vehicle, and use the steel rope to connect the vehicle and heavy hammer separately through the revising pulley, this automatically tension the conveyor belt by the gravity of the heavy hammer.

3. Vertical hammer type tension device

The vertical hammer type tension device is installed between the transmission pulley and the tailing pulley, and should be close to the site with least tension. It reacts quickly when the belt conveyor starts working with good tension effect. 

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

Belt running deviation and skid processing method of belt conveyor

• Running deviation has many reasons, according to the different reasons , we need to different treatment:

1. Adjust the carrying idler group.
2. Install the self-aligning roller group.
3. Tension adjustment, tension adjustment is an important link of belt conveyor running deviation.
4. Adjust the driving drum and redirection roller position. And the adjustment of the redirection roller driving drum is an important part of the belt running deviation adjustment.
5. Two-way adjust deviation of belt conveyor.

• Belt skid treatment method:

1. Adjustable tension when the belt conveyor in skid trip to increase tension. Sometimes tensioning trip has not enough, however, belt in the permanent deformation , the belt can be cut part to and sulfide.
2. In the use of nylon belt or EP,tension travel is longer,  when tension trip has not enough, sulfide or increase tension to solve.
3. Heavy hammer tensioning belt conveyor belt skid can add weight to solve,  added until not skid. But should add not too much, avoid belt  bear too much unnecessary tension and reduce the service life of the belt.

The application of conveyor belt fluid coupling

Fluid coupling is a used fluid transmission component. Motor drives coupling pump wheel rotation, pump impeller blade agitates intracavitary working liquid, under the centrifugal effect,pump wheel turns mechanical energy into liquid energy, then passes to the turbine blades, turbine passes the absorbent liquid energy to the machine.
Fluid coupling has the function of flexible transmission,slow down the impact and the isolation of torsional vibration, prolong the start-up time, reduce the starting current,make the motor light load start-up, solve the problem of heavy large inertia load start-up difficulties and protect the motor when overloads, energy and power saving effects are remarkable.
On the conveyor, fluid coupling has the function of connecting motor and reducer ,it replaces the mechanical coupling. The belt conveyor fluid coupling has two effects:
1.Overload protection
If the belt conveyor is overload, fluid coupling slip frequency increases, working fluid warms up, fluid coupling will spray without burning motor to a certain temperature. Of course sometimes coupling will be installed with a temperature control device, when work liquid superheats, temperature control device can control the motor and cut the power cut to protect the motor.
2. Flexible-start
When motor starts,belt conveyor starts slowly and acceleratedly , this can reduce the grid big impact to make the motor start up in light load. At the same time,it can reduce the effect of belt tension,protect belt and prolong life, especially under the heavy load start-up.

Follow the Right Operation of Fixed Belt Conveyor, Otherwise Accident will Occur

1.Fixed belt conveyor should be fixed in accordance with the specified installation methods on the foundation;
2.Before start-up ,please check all the moving parts of belt conveyor, such as if belt buckles and bearing device is normal, if the protective device is complete, if the belt tensioning condition is adjusted properly before start-up;
3. Fixed belt conveyor should no-load start up, only when operation is normal, can you feed the material, feed material before starting up the conveyor is not allowed;
4. when units of belt conveyor operate in series, please start from the discharged end in order, only when the operation is normal ,can you feed the material;

 

5. When belt deviation appeared in the operation of the belt conveyor, please stop the conveyor and adjust timely, so as not to wear edges and increase the load;
6. The work environment and material temperature should not be higher than 50℃ and lower than -10 ℃;
7. The conveyor must not convey people, and people is not allowed to stand under the conveyor;
8. Stop feeding material before stopping the conveyor, only after stored materials are discharged completely you can stop the conveyor;
9. Belt conveyor motor must be in good insulation;
10.Do not use your hand to pull the belt in order to avoid accidents when belt slips.

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)