The spiral roller is a key component of the belt conveyor, with its working surface being spiral-shaped. Its main function is to clean the adherents on the conv
The spiral roller is a key component of the belt conveyor, with its working surface being spiral-shaped. Its main function is to clean the adherents on the conveyor belt and keep the belt surface clean. At the same time, it achieves auxiliary functions such as anti-deviation through structural design.
1. Classification dimensions and typical types
Spiral idlers can be subdivided based on dimensions such as purpose, structure, and material. Typical types include:
By application: spiral lower roller (commonly used in coal, power, metallurgy, and other fields), spiral cleaning roller (specifically for coal mining machinery), bidirectional spiral rubber roller (used in conveyors, mining equipment, and other scenarios).
According to the structure: Installing a spiral groove cast rubber sleeve, with a bidirectional spiral design (threads with opposite directions generate a lateral force directed towards the center of the conveyor belt, achieving anti-deviation).
By material: steel roller (diameter 108mm, length 950mm, load capacity 3800kg).
II. Core Features
Functional dimension:
Cleaning conveyor belt: The spiral structure efficiently peels off adhering materials, ensuring the belt surface is clean.
Anti-deviation assistance: The bidirectional spiral design guides the conveyor belt through lateral force, reducing the risk of deviation.
Technical dimension:
Installation accuracy: The spiral direction must be consistent, and the symmetry deviation of the bracket must be ≤2mm to ensure operational stability.
Cost and impact: It accounts for approximately 35% of the total cost of the conveyor, directly affecting equipment energy consumption and conveyor belt lifespan.
III. Precautions
Installation process: Strictly adhere to the technical requirements of "consistent spiral direction and symmetrical deviation of supports ≤2mm" to ensure operational stability.
Operation and maintenance: Regularly conduct routine inspections (appearance, cleaning, lubrication, etc.), promptly handle malfunctions, and extend service life.
IV. Application Fields
It is widely used in industries such as coal, electricity, metallurgy, and mining, and is compatible with belt conveyor systems, meeting core requirements such as "clean belt surface and anti-deviation" in material conveyance.
V. Key points of maintenance
The maintenance of spiral idlers is crucial for ensuring their performance, and it should be carried out from the following dimensions:
Daily inspection: Regularly (such as daily/per shift) observe the surface condition of the spiral blade and roller, and inspect for abnormal wear or adhesion.
Cleaning operation: Timely clean the adhering materials on the surface of the spiral structure and the roller to avoid the impact of accumulated materials on functionality.
Lubrication management: Regularly lubricate key parts such as bearings according to equipment requirements to reduce frictional wear.
Fault Handling: If any abnormalities such as vibration or jamming are detected, immediately shut down the machine for investigation and repair before restarting it.
