Double Layer Poly-v Pulley Motor Driven Roller Conveyor

Double Layer Poly-v Pulley Motor Driven Roller Conveyor

This is a structurally compact and highly efficient modular belt-driven roller conveyor. Its core features include a double-layer structure, the use of Poly-V belts as the driving element, the adoption of a pulley motor as the power source, and rollers as the carrying surface. It is specifically designed for automated applications that require handling multiple types of goods simultaneously or implementing complex processes within a single system.

Core Structure & Working Principle

Structure

1. Double-Layer Frame: The conveyor features two independent conveying planes, upper and lower, typically constructed from sturdy steel or aluminum profiles. This is equivalent to stacking two conveyors vertically, significantly saving floor space.

2. Conveyor Rollers: Each layer is equipped with a large number of rollers, forming the load-bearing surface. Goods move directly on these rollers.

3. Poly-V Belts and Pulleys: This is the key transmission part. Beneath the rollers on each level, one or more continuous Poly-V belts are installed. These belts do not directly carry the goods but drive the rollers via friction. Each roller is fitted with a Poly-V belt pulley (grooved wheel) at its base. When the Poly-V belt runs, it drives all these pulleys to rotate synchronously, thereby powering the entire roller bed.

4. Motor Drive Roller: This is the drive unit. It highly integrates a motor, gearbox, and drive pulley within a compact housing. The motor roller directly engages with the Poly-V belt, providing power for the entire system from a unified motor source.

Working Principle

1. Power Activation: The pulley motor starts, causing its integrated drive pulley to rotate.

2. Belt Transmission: The drive pulley pulls the Poly-V belt, causing it to circulate beneath the pulleys of all rollers on both the upper and lower layers.

3. Roller Drive: Friction between the Poly-V belt and the pulley on the bottom of each roller transmits power to every roller, causing them to rotate in sync.

4. Goods Conveyance: Items placed on the roller bed are moved forward or backward by the rotating rollers.

Key Features

• Extremely High Space Utilization: The double-layer design doubles conveying capacity in the vertical dimension, making it ideal for space-constrained facilities or complex layouts requiring material separation, merging, or distribution across levels.

• Efficient and Smooth Transmission: The Poly-V belt combines the flexibility of flat belts with the strong traction of V-belts, ensuring accurate transmission ratios, smooth operation, low noise, and minimal vibration.

• Excellent Synchronization: All rollers are driven by the same belt(s), ensuring outstanding speed synchronization between rollers. This prevents product jamming, squeezing, or unintended turning caused by speed differences.

• Powerful Drive: The engagement between the Poly-V belt and the pulleys provides a larger contact area, enabling higher torque transmission and making it suitable for heavier loads.

• Easy Maintenance: The modular design allows for relatively easy replacement of individual rollers or belt sections. The pulley motor, as a standard component, is also easy to detach and replace.

• Flexible Layout: By adjusting the frame and belt length, it can be designed in various forms like straight lines, curves, and inclines to meet different process requirements.

  
  

Key Component Analysis

• Double-Layer Poly-V Belt: Refers to the conveyor's structure (two layers) and its driving method (using Poly-V belts to drive all rollers).

• Motor Drive Roller: Refers to the power source – a compact drive unit that integrates a motor and a drive pulley.

• Roller Conveyor: Indicates the type of equipment – a conveyor that uses rollers as the carrying and conveying elements.

  
  

Typical Application Scenarios

This conveyor is widely used in industries with high demands for space efficiency and process automation:

• Logistics Sorting Centers: The upper layer conveys packages to be sorted, while the lower layer recovers empty totes or conveys sorted goods.

• Production Line Assembly: The upper layer transports semi-finished products for processing, while the lower layer returns finished products to the start or sends them to inspection/packaging stations.

• Airport Baggage Handling Systems: Handles both departing and arriving luggage, facilitating transport between different floors or zones.

• Food and Beverage Industry: Used for conveying bottles, cans, and cases. It can connect processes like washing, filling, capping, and labeling on a single unit.

  
  

Key Performance Parameters (For Selection Reference)

• Conveyor Dimensions: Length, width (per level), and height between layers.

• Roller Specifications: Roller diameter, material (steel/stainless steel/coated), and pitch (center-to-center distance).

• Load Capacity: Maximum load-bearing weight per unit length for each layer (kg/m or lb/ft).

• Drive Power: Power of the pulley motor (kW), which determines traction force.

• Conveying Speed: Fixed speed or variable speed via frequency control (m/min or ft/min).

• Poly-V Belt Model: e.g., PH, PJ, PK, which determines the belt's dimensions and performance.

• Control Method: Local control, remote PLC control, integration with a superior system, etc.

The speed is adjustable from 0.5m/min to 120m/min, the maximum load capacity is upto 3000 kgs.

The Double-Layer Poly-V Belt Pulley Motor-Driven Roller Conveyor is a highly engineered automated conveying solution. It combines a double-layer structure for maximizing space utilization, Poly-V belt transmission for smooth and synchronized roller drive, and a compact pulley motor power solution. Together, these elements form an efficient, reliable, and flexible material handling system. It is one of the core assets in modern smart factories and logistics centers for optimizing process flow and enhancing throughput efficiency.

The motor driven roller conveyor is different to traditional motorised roller conveyor, which doesn't need gear motor, chain or belt and other auxiliary driving elements, just install the motor driven roller on the conveyor rack and connect the power, the motor driven roller will drive other free rollers by belt or chain, it is more cleaner, safe, reliable and intelligent control by driven controller.