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Jaw Crusher Bearing Replacement

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Date: 2018-07-17

The jaw crusher is a very important crushing and processing machine for ore. The jaw crusher bearing is a very important part of the jaw crusher. Shanghai Joyal Mining Machinery reminds the users to pay attention to the jaw crusher in the process of crushing the ore. In the case of bearing damage in the middle, when the jaw crusher bearing is damaged, it needs to be replaced in time. How to replace the jaw crusher bearing? Joyal simply talks to everyone.

The jaw crusher bearing should protect the shaft head from being damaged during the replacement process: a sleeve with a bearing surface thickness of 40 mm can be made on the shaft head, so as to avoid the flywheel directly hitting the eccentric shaft and damaging the shaft head; When the heavy object hits the eccentric shaft, the center line of the flywheel should be kept in a straight line with the center line of the eccentricity; the position of the impact bearing should be properly selected so that the bearing can be disengaged first. If the axis is offset, continue to hit after the alignment. Until all leave the cavity.

After the bearing is replaced, it needs to be assembled and installed. When assembling and installing, it is necessary to pay attention to the installation of the eccentric shaft and the bearing above it in the moving jaw. The moving argon should be placed vertically, and the flywheel should be placed under the ground to make it move off the ground to a certain height. The horizontal plane is vertical, and then the firewood is burned under it, and the flame is passed through the cavity. The movable cavity is heated for about 1.5 hours, and then the eccentric shaft is lifted and vertically lowered into the cavity. In order to ensure the accurate installation of the bearing, the oil seal, end cover and retaining ring of the bearing are installed ahead of the shaft end of the lifting end, and then the external bearing is installed. In addition, it is necessary to ensure the number of revolutions of the eccentric shaft of the jaw crusher.

After installing the eccentric shaft, keep moving, and then install another flywheel. Four suitable stud bolts can be used, one end of which is placed in the four screw holes of the shaft head. Then, lift the flywheel horizontally, pay attention to the up and down direction of the flywheel, slowly lower it, the shaft hole passes through the four bolts, the flat key is aligned with the keyway, and the shaft end cap is put on the three bolts, plus the pad, screw With the upper nut, press down on the flywheel and force the flywheel at the same time to make the flywheel install quickly.

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