The eccentric sleeve of the crusher is installed with a high-lead bronze bushing fixed by screws; the lower part is installed with a large bevel gear and a thrust bearing through bolts, of which the upper thrust bearing is forged steel, and the lower thrust bearing is high-lead bronze.  In addition, the eccentric shaft sleeve is also equipped with a bolt-fixed counterweight assembly, which is filled with lead and installed with a wear-resistant protective liner.

1. In production, the concentrator requires a smaller discharge port to obtain products with a smaller particle size, so the fine crusher must adopt the second motion state, that is, a balance is installed above the large bevel gear of the eccentric bushing. weight and make the moment to the center point of the sphere zero;
2. During no-load, the main shaft leans against the thin side of the eccentric bushing, and the eccentric bushing is pressed against the straight bushing with the thick side; when under load, the main shaft leans against the thick side of the eccentric bushing, and the thin side of the eccentric bushing is pressed against the straight bushing. Press on the straight bushing. In this way, the harmful effects of inertial force and inertial moment on the vibration of the machine base and the operation of the machine can be weakened, so as to achieve the purpose of balancing the crusher.