In order to make the bearing alloy well with the spherical tile body, the dovetail groove should be processed on the sliding bush body of the spherical tile, and the dovetail grooves should be criss-crossed. The included bronze sleeve can not be smaller than 90 degrees. Dovetail spacing is generally about 100 ~ 150mm. So can be used as milling equipment. In addition, the pre-cast surface of the spherical tile body should be processed into a rough surface, and some drilled holes with 8-10 mm depths and 10-15 mm depths in the dovetail groove or table.
The bearing alloy layer determines the service life
Cast bearing alloy layer can not be too thick (excluding the thickness of the pouring into the trench), because the aluminum-based ball retainer ring will weaken the bearing alloy stiffness; nor too thin, because the mill in operation inevitably wear If the bearing alloy layer is thin, the service life of the bearing bush will be shortened. Bearing alloy layer thickness is generally 11 ~ 13mm. In order to make the lubricating oil smoothly enter the oil film between the spherical shroud and the journal, both sides of the shingle lining should be processed into a guide groove of a certain depth and length.
In order to prevent the bearing bush from being carried out by the hollow shaft, the bearing seat is provided with an over-movement limiting mechanism (briquetting or pin). Limit agencies must ensure that the bearing can rotate freely can not be taken out by the hollow shaft. This kind of structure can prevent the bearing shell from being taken out and can rotate freely. Can also play the role of the above, but also easy to check. These two structures, in turn, prevent the bearing pad from being pulled out, which limits the freedom of rotation of the bearing pad due to its structure being unable to adjust and check the clearance. When working, pay attention to these issues. As a result of the burning of tiles in actual production, this structure is undesirable.