Why is the scraper chain conveyor chain always in a medium tension state, here is a popular science for everyone.
In a closed rectangular section, the bulk material is conveyed by a moving chain scraper conveyor. When transported horizontally, the material is subject to pressure in the direction of movement of the scraper chain and internal friction of the weight of the material itself. This friction ensures a stable state between the layers and is sufficient to overcome the material. External frictional resistance caused by movement in the machine slots causes the material to form a monolithic flow to be transported.
The chain scraper conveyor uses a single high-strength mining ring chain to drag the scraper and is driven by a concave sprocket. It has the characteristics of large carrying capacity, long chain life and high strength. The chain can be tensioned automatically to ensure that the chain is always in a medium tension state for a long time without manual, frequent and violent operations. The scraper conveyor belt and the scraper return section are supported by the support wheels, which not only saves manpower and reduces wear, but also helps the chain to tighten and slide automatically and change automatically. Deflection between rollers. The upper part of the head of the chain scraper conveyor has a housing, and the entire device can be operated freely without using anchor bolts. The running speed can be controlled by YVP series motors and inverters. This is the speed control mode.
The chain scraper conveyor is mainly composed of scraper chain, head and tail sprocket, machine slot, feeding port, discharging port, driving device and tensioning device. The head and tail sprocket wheels are drive wheels and tensioners. The chain is supported as traction members in head and tail sprockets and grooves. The scraper mounted on the chain is a component that conveys material, which passes through a closed machine slot. Continuously running scraper chains enable transport. As with the first two conveyors, the drive of the scraper conveyor is mounted on the head drive wheel end and the tensioner is placed on the tail tensioner end. Usually, a sliding screw tensioner is used and the feed opening is opened. In the upper part of the tail tank, the discharge opening opens in the lower part of the head tank. Note that the traction members of the belt conveyor and bucket elevator are driven by friction, while the chains of the chain scraper conveyor are driven by tooth engagement.
