Precision Engineered Conveyor Pulley for Smooth Operation and Longevity

• Customization: Available
• Material: Carbon Steel
• Surface Treatment: Baking Paint
• Model NO.: Conveyor belt width 500to2400 mm
• Motor Type: Frequency Control Motor
• Installation: Horizontal
• Transport Package: Wooden Box
• Specification: Customized according to cargo
• Origin: China
• Production Capacity: 3000units/Year

Product Description

Introduction to Driving Drums
 
A driving drum is a key component for transmitting power in a conveyor, widely used in industrial production. Here is a detailed introduction:
 
Structure and Classification
 
- Materials: There are three types - rolled and welded steel plate, cast steel, and cast iron. Rolled and welded steel - plate drums are commonly used due to relatively low cost and mature manufacturing processes. Cast - steel drums feature high strength and good wear resistance. Cast - iron drums are low - cost but have relatively poor toughness.
 
- Structural Forms: They can be divided into assembled spoke - plate type, spoke - type, and integral spoke - plate type. The assembled spoke - plate type is easy to manufacture and maintain. The spoke - type is lighter in weight, suitable for applications where weight is a concern. The integral spoke - plate type has high structural strength.
 
- Surface Types: These include smooth surface, rubber - covered (such as herringbone and diamond - patterned rubber surfaces), and cast - rubber. For small - power, small - width conveyors in dry environments, a bare steel smooth surface can be used. Herringbone - patterned rubber surfaces have a large coefficient of friction, good anti - skid and drainage properties, but are directional. Diamond - patterned rubber surfaces are suitable for conveyors operating in both directions.
 
Working Principle
 
Power is provided by an electric motor and is converted from high - speed rotation to low - speed rotation suitable for the drum's operation through a speed reducer. The patterns or rubber coatings on the drum's surface increase the friction with the conveyor belt. When the drum rotates, it drives the conveyor belt, which in turn moves the materials placed on the belt. By adjusting the speed of the electric motor and the transmission ratio of the speed reducer, the speed of the drum and the conveyor belt can be controlled to meet different production requirements.
 
Driving Modes
 
There are single - drum, double - drum, and multi - drum driving modes. Single - drum driving is used for conveyors with small power, such as ground transportation in coal mines and coal preparation plants. Double - drum driving is generally adopted for underground belt conveyors to make the structure more compact. Multi - drum driving is applied to long - distance, large - capacity conveyors or those in special working conditions to provide greater power.
 
Technical Indicators
 
The minimum diameter D of the driving drum is selected according to the formula D = c * d (in millimeters). Here, d is the core layer thickness or steel wire rope diameter, and c is a coefficient that varies according to different materials. For example, it is 80 for cotton fabric, 90 for nylon, 108 for polyester, and 145 for steel cord.
 
Common Problems and Causes
 
Brake failure may be caused by abnormal air pressure, damage to the brake blocks, absence of brake discs on both sides, malfunctions in the operating brake switch system, failure of the power - transmission system to cut off power in a timely manner, as well as loosening of the belt - type friction brake or a decrease in the friction coefficient.
 
Maintenance Key Points
 
- Regularly clean dust and other foreign substances to prevent interference with normal operation.
 
- Check the welding between the drum shell and the end cover to ensure structural integrity.
 
- Maintain good lubrication to reduce friction loss.
 
- Avoid over - load operation to extend the service life.