Method for installing big gear in ball mill

      Before installing a large gear on the ball mill, clean the internal cover of the predetermined gear underneath. Wash the large gears and cylinders, especially the gear section, the combination of gears and the cylinder.

       In the installation of large gears, it is necessary to consider hanging, place and convenient pores. First, the half -piece gear is lifted, and the above part is buckled onto the cylinder. , Turn the tube to the corresponding part. When pairing the pores with the cylinder, first ahead of the assembly mark, enter the positioning sales, penetrate all the bolts, and tighten one by each three appropriate strengths (not too tight), the rest of the rest, the rest of the rest, the rest of the rest, the rest of the rest, and the rest of the rest, and the rest are the rest, and the rest are the rest, and the rest are the rest, and the rest are the rest. Tighten it with your hands. After the half -piece gear is fully loaded, the rotating cylinder can be installed in the lower part of the half -piece gear. Install the other half of the gear according to the assembly marking, and put it into 8 to 10 sets of bolts in three groups. Just be aligned. Install the cone -selling bolt according to the large gear map. When installing the cone -selling bolt, first apply the inner and outer column part with a sewing cover with white lead, put it in the positioning hole, insert the cone -shaped positioning bolt into The rod and the sledgehammer are tight, and after the flat pads and nuts are tightened with a sledgehammer. Check the two -half gear misalignment deviation less than equal to 0.1mm.

       Hot -loaded interface fastening bolt. First try the nuts at both ends of the bolt to reach the degree of flexibly rotating by hand, and then twist a nut and pad at one end. The location should be the position of the installation. Make the bolt on the ground upright, insert the heating of the bolt -free thread -free part with a lamp in the center of the center of the bolt, and slowly rotate the bolt on the bolt without threading part, and slowly heat it to heat it evenly. Heat the bolt to 160 ° C (at this time the bolt length should be extended by about 0.15%), and then quickly insert into the bolt hole, twist the cushion ring and the nut tighten with a wrench. In order to shrink the two -half gear, these four bolts should be installed in the sequence of the diagonal line. After all installation is cooled to the ambient temperature, use the corresponding thickness plug ruler to check the combined surface according to the requirements of the drawing, and shall not be inserted for 20mm.

        Wire all the large gears, cylinders, end cover connection bolts, and adjust the radial position of the gear inner ring with large gears upper radial to adjust the distance between the inner ring of the gear flange and the outer ring of the cylinder. The large gear radial jump does not exceed 0.7mm, and the axial swing does not exceed 0.7mm. After the test is qualified, tighten all the connection bolts, and the torque value is shown in the drawing of the tube body. The flanges of the large gear and the end surface of the tube should be tightly fit. Use a 0.03mm meter ruler to check the gap and not be inserted.