In order to completely solve this problem and meet the installation requirements, it was re-installed. In order to maintain strict verticality and horizontality, the centerline of the base was checked with a spirit level and a pendant on the annular processing surface of the base, and an adjusting wedge was used. After adjusting the level of the base, tighten the anchor screws for the second grouting. When the secondary grouting layer is hardened, take out the adjusting wedge iron from the base of the crusher, fill the gap with cement, and then check according to the installation standard of the frame. When installing the drive shaft, reduce the adjustment gasket between the body base and the flange flange of the drive shaft frame, and move the pinion axially by 10mm to align the outer end faces of the large and small bevel gears. In this way, the large gear must be raised to ensure The meshing clearance of the two gears, so increase the adjusting shim under the eccentric bushing, adjust the position of the large gear, and measure the backlash of the meshing of the two gears to be 1.88mm.
When installing the bowl bearing frame, it was found that the bottom of the bowl bearing frame interfered with the top of the large bevel gear. When the drive shaft coupling was turned by hand, the bottom surface of the bowl bearing frame and the large bevel gear could be heard. There is a rubbing sound at the top. Continue to install the crushing cone. The gap between the main shaft and the conical bushing is measured to be 1.52mm. After disassembling and checking all parts, they can be used and meet the requirements. Therefore, the height of the counterweight side of the large bevel gear is lowered. 5mm At the same time, add a ring gasket between the contact surface of the bowl-shaped bearing frame and the frame, with a thickness of 6 mm, install the crushing cone, and measure the gap between the main shaft and the cone bushing to be 1.86 mm.
Because the friction surfaces of the crushing cone and spherical bearing, the crushing cone and the conical copper sleeve, the eccentric shaft sleeve and the fuselage copper sleeve are under great pressure, lubrication is of great significance to the crusher. The machine adopts thin oil for centralized lubrication, and the lubricating oil enters the machine in two ways. After the oil hole L from the lower part of the machine enters the machine, it is divided into 3 branches to reach the inner and outer surfaces of the hollow eccentric shaft respectively. The oil hole in the middle of the main shaft reaches the bowl-shaped bearing, lubricates the large and small gears through the holes, and then returns from the oil return hole at the lower part of the small bevel gear. Oil. The other one enters the oil through the hole on the transmission shaft frame to lubricate the transmission bearing, and the oil returns through the oil return hole in the lower part of the small bevel gear and the oil return hole on the dust cover. When the oil is returned to the oil tank through a separate pipeline, the thin oil lubrication system is thoroughly cleaned, the various oil circuits are dredged, and all the lubricating oils are replaced.
After repeated inspections, the dimensions of each matching part of the cone crusher meet the installation requirements. The drive shaft coupling is manually operated by hand, which is light and non-blocking. Start the oil pump, adjust the safety valve to stabilize the oil pressure at 1.1kg/cm, start with no load after the oil flow is stable, and run the idling test continuously for about 2 hours. The number of revolutions of the broken cone around its center line is 13r/min. The crushing cone is reversed immediately after the mine is discharged, and the bevel gear has no periodic noise. At the same time, other parameters show that the crusher is running normally. Since the crusher has been used for nearly 4 years, there has been no broken tooth accident, which ensures the normal production of the concentrator. From the consumption of gears and related accessories alone, the cost is nearly 100,000 yuan.
Post time: Apr-28-2022