1. The
water well drilling rig becomes loose
The
water well drilling rig newly processed and assembled parts have the deviation of geometric shape and matching size. At the initial stage of use, due to the impact, vibration and other alternating load, as well as the influence of heat, deformation and other factors, plus the reason of too fast wear, it is easy to make the original fastening parts loose.
2. The
water well drilling rig wears fast
Due to the influence of the processing, assembly and adjustment of the parts of the new machine, the friction surface of the well drilling rig is rough, the contact area of the mating surface is small, and the pressure conditions on the surface are uneven. During the operation of the machine, the concave and convex parts of the parts of the surface of each other Mosaic friction, grinding down the metal debris, and as abrasive, continue to participate in the friction, but also accelerate the wear of the parts with the surface. Therefore, in the running-in period, it is easy to cause the wear of parts (especially the surface), and the wear speed is fast. At this point, if the overload operation, it may lead to damage parts, early failure.
3. Leakage occurs in the
water well drilling rig
Due to the looseness, vibration and the influence of heat on the
water well drilling rig, leakage will occur on the sealing surface of the machine and pipe joints. Some defects such as casting and machining are difficult to be found during assembly and debugging, but due to vibration and impact during operation, such defects are exposed as leakage (leakage) of oil (water). Therefore, leakage is easy to occur in the running-in period.
4. Many operational errors
Due to the insufficient understanding of the structure and performance of the well drilling machine (especially the new operator), it is easy to cause failures or even mechanical accidents due to operational errors.
5. Poor lubrication
Due to the small matching clearance of newly assembled parts and assembly reasons,
water well drilling rig is difficult to ensure the uniformity of matching clearance, and lubricating oil (grease) is not easy to form a uniform oil film on the friction surface to prevent wear. Thus reducing the lubrication efficiency, resulting in the early abnormal wear parts. Serious will cause the friction surface of the precise fit scratch or bite phenomenon, leading to the occurrence of fault.
