Novel approach to and implementation of design and analysis of armored face conveyor power train

Fully mechanized longwall mining with two shearers: A case study

“…where A 1 , A 2 , and A 3 are the cross-sectional dimensions of coal piled in the pan, coal blocked by the spill plate, and coal in the guiding tube, respectively; h 0 , b 0 , and b 1 are the internal height, width, and thickness of the pan, respectively; h 1a is the clear height of coal blocked by the spill plate; b 2 is the distance from the spill plate to the outer edge of the pan; D is the diameter of the guiding tube; and C e is the loading coefficient, the value of which is usually 0.9 (Nie et al, 2015).…”

“…The relationship between Q (the maximum coaltransporting capacity of the AFC) and A (the cross-sectional dimension of coal piled on the AFC) can be described as follows (Nie et al, 2015):…”

“…where v is the speed of the chain, is the bulk density of coal piled on the AFC (taken as 0.9 (Nie et al, 2015)), and is the density of the coal.…”

Multi-Body Dynamics and Vibration Analysis of Chain Assembly in Armoured Face Conveyor

“…Compared with real conveyor, the established SGZ1000/1400 model in this study is shortened and simplified to ensure an efficient analysis. (1) where, x, y, and z are coordinates of a point on the ring; r and R are the outer and middle radii of the semicircle ring, respectively; a is the inner diameter of the semicircle ring; l is the halflength of the cylinder; and t is the total inner length of a ring. A chain comprises numerous horizontal and vertical rings that are individually connected.…”

“…It also plays a significant and unique role in intelligent coal mining equipment group in mechanized coal mining face [1,2]. The reliability and stability of the AFC can determine the efficiency and safety of a coal mine to a great extent.…”