Sprocket shaft repair group testing

Sprocket shaft repair group testing - 2020 05 - 21 a, dismantling sprocket surface cleaning, removal of coal; The sprocket wheel vertical lift, loosen the oil plug, at the top of the sprocket in the waste oil pool, loosen the bottom of the drain plug, release waste oil; Will sprocket vertical stand, remove the plug, then the sprocket with 200 tons of pulling on wheel body, bearing dismantling, etc. Second, cleaning: to check the sprocket shaft sprocket shaft without strain, crack, bruising, bending and serious wear and tear, cooperate with the spline should be no distortion, no broken, no deformation and no serious wear and breakage, sprocket shaft assembly outside bearings have a strain on both ends. Sprocket body: sprocket may have broken phenomenon, wear and tear may not be too serious, no broken chain wheel inner hole spline, cracks and distortion. Bearing seat, bearing friction sealing parts installation shall not be broken, wear too much, for bearing inner hole can not have injury and severe wear. Distance set: the main is to control the bearing axial moving parts, so it is the length of the wear and tear shall not exceed 0. 2毫米( Namely: face wear) , can not have crack. Floating seal seat: floating seal cylindrical cavity and face can not have the phenomenon such as corrosion, abrasion, crushing. Bearing, ball bearings, raceway without pitting, injury, damage, keep body in good condition, flexible rotation, the bearing clearance and size in line with the national standard. Seal: replace a full set of seal. （ Source: double machine)