Scraper conveyor is the main equipment for coal transportation in underground coal mining face.The middle slot is the body and material carrying mechanism of the scraper conveyor,and its performance directly affects the reliability and service life of the scraper conveyor.

　　The scraper conveyor is mainly composed of the head,tail,middle groove,scraper chain and other components.The middle groove is subject to severe friction of materials,scrapers and chains during operation.The working surface is the fulcrum of the hydraulic support movement when the working surface is advanced.Therefore,the middle groove is a component with a large amount of consumption and consumption except for the sprocket assembly.By weight,it accounts for 70%to 80%of the entire scraper conveyor.Generally,each scraper conveyor has more than 100 middle grooves,and the length of each groove is 1.5m,and there are also 1.75m.In addition to factors such as materials and processing technology,the reasonable design of the central groove structure also directly affects the strength,stiffness,wear resistance and life of the central groove.

　　Due to the different types of scraper conveyors(light,heavy,super heavy,etc.),the structure of the central groove is also different.Such as:

　　(1)Welding,casting welding and integral casting of the central groove;

　　(2)Open-bottomed and closed-bottomed middle troughs;

　　(3)the middle ear groove with single push and the middle ear groove with double push;

　　(4)Different end connection devices.

　　According to the above analysis,it is known that the structural form of the middle groove of the scraper conveyor is not fixed.Luoyang Foresight can process and produce scraper accessories of various manufacturers according to different operating environments and design requirements,such as:sprocket components,scrapers,E-bolts,beams,racks,central grooves and other accessories to meet different user needs,Welcome new and old customers to inquire or visit the factory.