scraper conveyor

Working principle of scraper conveyor:

The working principle of a scraper conveyor is to use an open chute as a support for coal, gangue, or materials, and fix the scraper on a chain (forming a scraper chain) as a traction component. After the transmission part of the machine head is started, the sprocket on the drive head shaft rotates, causing the scraper chain to circulate and move the animal material along the chute until it is unloaded at the machine head. The scraper chain runs continuously in a closed loop around the chain rotation to complete the transportation of materials.

Components of scraper conveyor:

The main structure and components of various types of scraper conveyors are basically the same, consisting of three parts: the head, middle, and tail.

In addition, there are auxiliary components such as hydraulic jacks for pushing conveyors and chain tighteners for tightening chains. The head of the machine is composed of a head frame, an electric motor, a hydraulic coupling, a reducer, and a sprocket. The middle part is composed of transition groove, middle groove, chain, scraper and other components. The tail of the machine is a device for returning the scraper chain. The tail of a heavy-duty scraper conveyor, like the head, is also equipped with a power transmission device, which is distinguished by its installation position as the upper head and lower head.

Classification of scraper conveyor:

According to the arrangement and structure of the scraper conveyor chute, it can be divided into two types: parallel and overlapping. According to the number and arrangement of chains, it can be divided into four types: single chain, double side chain, double center chain, and triple chain.

Application scope of scraper conveyor:

Scraper conveyor can be used for horizontal transportation as well as inclined transportation. When transporting along an inclined upward direction, the inclination angle of the coal seam should not exceed 25 º, and when transporting downwards, the inclination angle should not exceed 20 º. When the inclination angle of the coal seam is large, anti slip devices should be installed. The bendable scraper conveyor allows for 2 º to 4 º bending in both horizontal and vertical directions.