36sym010101 sprocket shaft group is suitable for coal mine transfer machine.The sprocket shaft group is mainly composed of sprocket body,shaft,bearing,bearing seat and other accessories.The sprocket body is made of 42CrMo material,forged and heat treated.

　　The main technical parameters are:total length 1170mm,height 460mm at both ends.The sprocket body is made of 8-tooth 42CrMo forged heat-treated sprocket.The outer circle diameter of the sprocket is 510mm.The middle and double chain sprockets are equipped with 26×92 grade C heat-treated chain,and the center distance of the chain is 120mm.The shaft group of comprehensive mining sprocket is generally composed of sprocket,sprocket shaft,bearing,bearing seat,sealing ring and other parts.The material of sprocket mostly adopts 42CrMo or 45CrMnMo material,and the process of forging and quenching is adopted for sprocket to improve the wear resistance of sprocket.First of all,the forging surface is required to be free of cracks,interlayer,fold,forging damage,slag inclusion,scar and other defects,and the forging blank needs to be forged Carry out the first level flaw detection to ensure that there is no crack in the middle of the sprocket body.The second is the surface quenching of the sprocket,the quenching hardness of the sprocket tooth surface is hrc50-55,and the depth of the hardened layer is 10 mm.