Helical Roller It is a key component of the belt conveyor, with a helical-shaped working surface. Its primary functions are to remove materials adhering to the conveyor belt and keep the belt surface clean, while its structural design also enables auxiliary features such as preventing belt misalignment.

I. Classification Dimensions and Typical Types 
Spiral idlers are further classified according to dimensions such as application, structure, and material; typical types include:

By application: Spiral idlers (commonly used in coal, power, metallurgy, and other industries), spiral cleaning idlers (specifically designed for coal mining machinery), and bidirectional spiral rubber idlers (suitable for conveyors, mining equipment, and similar applications). 
By structure: Install a cast rubber sleeve with spiral grooves, featuring a bidirectional helical design (threads with opposite helical directions generate lateral forces directed toward the center of the conveyor belt, effectively preventing misalignment). 
By material: Steel idlers (diameter 108 mm, length 950 mm, capable of handling 3,800 kg). 
II. Core Features 
Functional Dimension:

Cleaning the conveyor belt: The spiral structure efficiently removes adhered materials, ensuring a clean belt surface. 
Anti-deviation assistance: The two-way spiral design guides the conveyor belt through lateral force to reduce the risk of deviation.
Technical Dimension:

Installation accuracy: The helical directions must be consistent, and the bracket symmetry deviation should be ≤2mm to ensure operational stability. 
Cost and Impact: Accounting for approximately 35% of the total conveyor cost, it directly affects equipment energy consumption and conveyor belt lifespan. 
III. Important Notes 
Installation steps: Strictly follow the technical requirements of "consistent spiral direction and symmetrical bracket deviation ≤2mm" to ensure operational stability. 
Operation and Maintenance: Conduct regular daily inspections (including appearance, cleaning, lubrication, etc.), promptly address any malfunctions, and extend the equipment's service life. 
IV. Application Areas 
Widely used in industries such as coal, power generation, metallurgy, and mining, it is compatible with belt conveyor systems and effectively addresses core requirements in material handling, including "cleaning the belt surface" and "preventing belt misalignment."

V. Key Points for Maintenance and Care 
Helical Roller Maintenance is key to ensuring performance and should be carried out from the following dimensions:

Daily Inspection: Regularly (e.g., daily/per shift) observe the condition of the spiral blades and roller surfaces, checking for abnormal wear or adhesion. 
Cleaning Operation: Promptly remove any materials adhering to the spiral structure and roller surfaces to prevent buildup from affecting functionality. 
Lubrication Management: Regularly lubricate critical components such as bearings according to equipment requirements, reducing friction and wear. 
Fault Handling: If abnormal vibrations, jamming, or other malfunctions are detected, immediately stop the machine for inspection and troubleshooting. Restart only after repairs have been completed.