Ball mill installation instructions

1, the installation base

(1) The grinding machine is placed on the basis of the reinforced concrete at a suitable height from the ground. The foundation has to sink. If there is a slight sinking, it must be balanced. Otherwise, it cannot be installed.

(2) The cylinder of the grinding machine should have sufficient height from the ground to replace the lining, grinding media and fastening the lining screws.

(3) The design of the installation foundation can be referred to the “foundation” drawings supplied by the manufacturer, but it should not be used as a construction drawing.

2, the general precautions for installation

(1) Check whether the dimensions of the basic parts meet the drawing requirements before installation and check whether the equipment is complete.

(2) Each part and component shall be inspected and eliminated before installation to prevent various flaws on the machined surface, protective grease, dust and dirt, etc., which affect the quality of operation.

(3) Thin oil should be applied to the sliding surface during installation, and dry oil should be applied to the fixed joint surface.

(4) The friction surface should be protected during the assembly process. It should be coated with clean grease and covered with a special lining with a clean tarpaulin.

3, the main bearing installation

(1) The upper and lower processing surfaces of the two bearing chassis shall be certified, each on the same horizontal surface. The horizontal elevation and level shall be checked with a steel ruler and a level gauge, and the wedge iron may be used for adjustment.

(2) The allowable difference in the distance between the centerlines of the two bearing chassis is shown in the following table:

(3) The transverse centerlines of the two main bearings should coincide, the tolerance is 0.5mm; the longitudinal two lines should be parallel, the non-parallel degree tolerance is 0.5/1000mm; the chassis non-leveling tolerance is 0.1/1000mm, but the discharge end must be low.

(4) washing the oil with coal bearing housing and the bearing contact surface, and then the entire transfer unit mounted in the bearing housing, then the calibration.

4, the installation of the swaying part

The part is composed of a feeding portion, a feeding portion, a cylindrical portion, and a discharging portion.

(1) The turning part shall be installed on a sturdy and special wooden frame.

(2) Do not use the lifting ring on the end cover to transport the entire turning part. (This ring is only used to lift the end cap).

(3) The annular gap between the inlet and outlet ports and the end lining plate and the annular gap between the end lining plate and the liner lining should be removed by pouring cement mortar. The composition of the mortar: cement: sand = 1: 2-3 .

(4) Dust and dirt on all joint surfaces should be eliminated.

(5) The contact surface of the simplified flange and the flange of the inlet and outlet end caps shall be coated with lead dan, and no padding shall be allowed on the joint surface.

(6) All screws should be evenly tightened.

(7) When the rolling bearing and the end cap journal are installed, the oil should be heated by the boiling oil and then rolled onto the journal.

(8) The level of installation of the slewing part shall be checked by the level meter. The horizontal deviation of the center line of the journals at both ends shall not exceed 0.5/1000 mm, and the inclined direction points to the discharge end.

(9) When assembling large gears, the following requirements shall be met:

The burrs, rust-proof paint and dirt on the contact surface of the ring gear and the contact surface of the slewing ring should be removed before assembly.

1 Remove the burrs, rust-proof paint and dirt from the contact surface of the ring gear and the contact surface of the slewing body before assembly.

All local clearances between the end face of the ring gear and the mounting surface of the slewing ring should be less than 0.15 mm.

3 Check the deviation of the axial and radial oscillations of the large gears. It can be carried out with instruments such as “dual dial gauge” fixed pillar gauges, and the tolerance range is:

The radial runout shall not exceed 0.25 mm per meter pitch, and the end face jump shall not exceed 0.35 mm per meter pitch.

5, the installation of the feeder

(1) The mating surface of the feeder and the inlet should be coated with lead oil for later disassembly and replacement.

(2) If the position of the feeder is a single spoon and the position of the hole of the mill cylinder corresponds to 180° for adults, it will play a certain balance.

(3) The feeder should be firmly fastened to the inlet, and all the fastening bolts should be tightened to the utmost extent, and no looseness is allowed.

(4) There is no looseness in the spoon of the feeder. The feeding spoon and the safety cover should be reserved for the gap of 50-60mm. Prevent collisions during operation.

6, the installation of the transmission part

(1) Remove dirt inside the bearing housing and joint surface before installation.

(2) Rolling bearings and large and small gears are used for gasoline cleaning.

(3) Ensure that the level of the transmission has a tolerance of 0.1 mm per meter length, and the direction of the deviation should be consistent with the cylinder.

(4) Check the non-parallel deviation of the center line of the large and small gears with a tolerance of 0.3 mm per meter length.

(5) The lateral clearance of the transmission gear meshing shall be ensured within the range of 0.67-1.42 mm. The tooth surface contact condition shall be checked for color, and the contact area shall not be less than 60% of the tooth width. 50% of the tooth height.

(6) The axial parallelism tolerance of the center line of the drive shaft and the center line of the mill is 0.15/1000 mm.

(7) The installation of the reducer should ensure that the two axes are on the same level, and the difference between the low speed shaft and the pinion should not exceed 0.3 mm.

(8) The installation of the motor should be carried out according to the installed reducer. The center of the two axes should not be greater than 0.3 mm, and the deviation of the inclination should be no more than 1/1000.

(9) When installing the large gear cover at the end, ensure that the cover wall does not touch the large gear.

(10) Gear meshing side clearance can be as follows:

(11) Concentricity tolerance table when the motor shaft and the gear shaft are connected as a coupling

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