New anchor rigs typically go through a 3-5 day run - in period after being introduced.
Characteristics of anchorage drilling rig during running in:
The newly machined and assembled parts of the anchor bit have geometric shapes and matching dimensional deviations.In the initial use process, due to impact, vibration and other alternating loads, as well as heating, deformation and other factors, as well as excessive wear and other reasons, the original fastening parts are easy to loosen.
Due to the processing, assembly and adjustment of new machine parts, the friction surface is rough, the contact area of the matching surface is small, and the pressure condition of the surface is uneven.During the operation of the machine, the concave and convex parts on the surface of the parts are embedded and rubbed against each other, and the metal fragments that fall off are used as abrasives to continue to participate in the friction, thus accelerating the wear of the matching surface of the parts.Therefore, the parts (especially the mating surface) are easy to wear out during grinding, and wear rate is fast.At this time, if the work overload, may lead to parts damage and early failure.
Due to the influence of loose parts, vibration and machine heating, the sealing surface and pipe joints of the machine will leak.Some defects, such as casting and machining, are difficult to find during assembly and commissioning, but due to vibration and shock during operation, these defects are exposed, showing oil (water) leakage.Therefore, it is easy to leak during grinding.
