The main reasons why the eccentric sleeve is too short.

• 18 May 2024
• 908 times watched

1.The eccentric sleeve, the tapered sleeve and the lower end of the moving cone and the upper shaft end are not properly matched, resulting in a large impact load and additional load on the eccentric sleeve when the rotary crusher is in operation.

2.The installation gap between the base and the lower frame, the lower frame and the upper frame is not uniform, resulting in inconsistent offset of the tapered sleeve, which causes an additional load on the eccentric sleeve.

3.Lubricating oil contains more impurities, causing wear on the eccentric sleeve

4.The casting quality of the bus alloy on the eccentric sleeve does not meet the requirements.

Precaution

1.In view of the short-term service life of the above-mentioned gyratory crusher eccentric sleeve, the following precautions should be taken:

When overhauling the crusher, the eccentric sleeve and the tapered sleeve copper sleeve shall be measured strictly in accordance with the dimensional tolerances of the drawings to ensure that the corresponding fit meets the requirements of the drawings.

2.When the upper frame and the lower frame are installed, when the pin wedge iron can be installed, a gasket is added between the upper and lower frames to ensure a uniform gap between the frames.

3.During the inspection, the sealing ring of the moving cone middle ring and the dust cover should be inspected to ensure that the sealing ring is intact. And replace the contaminated lubricating oil in time.

4.Strengthen the supervision of the eccentric sleeve bus alloy casting process to ensure its casting quality.

———Tianjin Favoursea International Trading Company