Structural Design and Criterion of Roller Conveyor

 The roller conveyor is suitable for conveying all kinds of boxes, bags, pallets, etc. Bulk materials, small items, or irregular items need to be transported on pallets or in turnover boxes. It can transport a single piece of heavy material, or bear a large impact load. It is easy to connect and transition between roller lines. Multiple roller lines and other conveyors or special planes can be used to form a complex logistics conveying system to complete various process needs. The accumulation and release roller can be used to realize the accumulation and transportation of materials.

The roller conveyor has the advantages of simple structure, high reliability, and convenient use and maintenance. The roller conveyor is suitable for conveying items with a flat bottom and is mainly composed of a driving roller, a frame, a bracket, and a driving part. It has the characteristics of large conveying capacity, fast speed, light operation, and multi-variety collinear shunt conveying.

 

 

Environmental Prerequisites for Gravity Roller Conveyor Design

Consider various conditions such as the shape, weight, and easy damage of the conveyed object.

 

Conveying conditions	External dimensions, weight, the shape of the bottom surface (flat or uneven), material
Conveying status	Arranged and conveyed without gaps on the conveyor, conveyed at appropriate intervals
Transfer to Conveyor Method	Slight impact level (manual work, robot), strong impact level
Surroundings	Temperature, humidity

 

 Principles of Design Method of Roller Conveyor

 

2.1 Design of roller conveyor

 

1. The distance between the rollers should be determined so that the bottom surface of the conveyed workpiece is supported by 4 rollers.

2. When selecting according to the conveyors sold in the market, select according to the relationship of (the length of the bottom surface of the conveyed work-piece ÷ 4) > the distance between the conveyors.

3. When conveying a variety of workpieces in a mixed manner, take the smallest conveyed workpiece as the object to calculate the distance.

 

2.2 Design of roller conveyor width

 

1. The width of the drum is designed according to the external dimensions of the conveyed workpiece.

2. Generally speaking, the width of the drum should be more than 50mm longer than the width of the bottom surface of the conveyed workpiece.

3. When there is a turn on the conveyor line, select it according to the length and width of the conveyed workpiece shown in the figure on the right.

 

2.3 Design of frame and foot spacing

Calculate the weight of the conveyed workpiece per 1 meter according to the weight of the conveyed workpiece and the conveying interval, and add a safety factor to this value to determine the frame structure and the foot-setting interval.