The problems that should be paid attention to in the truck-mounted drilling rig
Release time:
2020-05-09
The running-in period is the main link to ensure the normal operation of the pile driver, reduce the failure rate and extend its service life. However, at present, some users neglect the special skill request during the running-in period of the new machine due to the lack of common sense of using the loaded highway pile driver or due to the tight schedule or the desire to obtain income as soon as possible. Some vehicle-mounted drilling rig users even think that the manufacturer has a warranty period anyway, and the manufacturer is responsible for the maintenance of the vehicle-mounted drilling rig machine if it breaks down. As a result, the machine will be overloaded for a long time during the running-in period, resulting in frequent early failures of the vehicle-mounted drilling rig machine. This not only affects the normal application of the machine, shortens the service life of the machine, but also affects the project progress due to the damage of the machine. Therefore, the use and maintenance of the mechanical running-in period should cause adequate respect.
1. The vehicle-mounted drilling rig wears fast
Due to the influence of the processing, assembly and adjustment of new machine parts, the friction surface is rough, the contact area of the mating surface is small, and the pressure-bearing state of the surface is uneven. In the running process of the machine, the concave and convex parts of the surface of the parts are fitted and rubbed with each other, and the parts are damaged and the early failure occurs.
2. Poor lubrication of truck-mounted drilling rig
Due to the small fit clearance of the newly assembled parts of the truck-mounted drilling rig, and due to assembly and other reasons, it is difficult to ensure the uniformity of the fit clearance. Lubricating oil (grease) is not easy to form a uniform oil film on the friction surface to prohibit wear. Thereby decreasing the lubrication efficiency, resulting in early abnormal wear of the machine parts. In severe cases, it will cause the friction surface of the precise fit to scratch or bite, resulting in failure.
3. Looseness of truck-mounted drilling rig
The newly processed and assembled parts have deviations in geometric shape and matching dimensions. In the early stage of application, due to the impact, vibration and other alternating loads, as well as the influence of heat, deformation and other factors, coupled with rapid wear and other reasons, it is easy to Make the originally fastened parts loose.
4. Leakage of truck-mounted drilling rig
Due to the looseness of the parts of the truck-mounted drilling rig, vibration and the influence of the heat of the machine, the sealing surface of the machine and the pipe joints will appear leakage. Some shortcomings such as casting and processing are difficult to invent during assembly and debugging. However, due to the vibration and impact in the operation process, this shortcoming is exposed, which is expressed as oil (water) leakage (seepage). Therefore, the run-in period easily emerge leakage phenomenon.
5, truck-mounted drilling rig operation errors
Due to the lack of understanding of the structure and performance of the truck-mounted drilling rig machine (especially the new operator), it is easy to cause failures due to operational errors and even cause mechanical accidents.
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