Preparation work before using the drilling rig

Preparation before use:
1. Check all components of the water well drilling rig for stable and reliable installation, ensure that the steel ropes and connections are intact, and remove dust, mud, and other debris from the drilling rig.
2. Check whether each operating handle is flexible and easy to use, whether the positioning is tight, and whether the tension of each V-belt is appropriate (especially for the brake of the main and auxiliary winches and the two friction clutch handles), and adjust them if necessary.
3. Check the power machine and mud pump. The steering should be correct.
4. Lubricate all components of the drilling rig according to lubrication specifications and diagrams.
5. Inject oil into the gearbox, turntable, and turbine box of the main winch according to regulations.
6. Disengage the diesel engine clutch, mud pump clutch, and empty car drive the triangular belt pulley to observe the gearbox, the universal shafts of the main and auxiliary winches, and the turntable for any signs of collision or biting. If so, adjust them accordingly.
7. Stir the mud. To ensure the quality and efficiency of drilling, a certain quality and quantity of mud should be prepared before drilling. Generally, in the Quaternary strata, a 600mm wellhead pipe is used to protect the borehole, and mud with a viscosity of no less than 4m3 and a viscosity between 10-20Pa. s should be prepared.
After the water well drilling rig leaves the factory, it is generally required to have a break in period of about 60 hours (some refer to it as the running in period), which is determined based on the technical characteristics of the water well drilling rig in the early stage of use. During the running in period, the drilling rig was overloaded for a long time, resulting in frequent early failures of the machine. This not only affects the normal use of the machine and shortens its service life, but also affects the progress of the project due to machine damage, which is not worth the loss. Therefore, the use and maintenance of the running in period of water well drilling rigs should be given sufficient attention.
Precautions for use during the break in period:
1. The wear rate is fast. Due to factors such as machining, assembly, and adjustment of new machine components, the friction surface is rough, the contact area of the mating surface is small, and the surface pressure is uneven, which accelerates the wear of the mating surface of the parts.
2. Poor lubrication. Due to the small fit clearance of newly assembled components and the difficulty in ensuring the uniformity of fit clearance due to assembly and other reasons, lubricating oil (grease) is not easy to form a uniform oil film on the friction surface, thereby reducing lubrication efficiency and causing early abnormal wear of the parts.
3. Loosening occurs. Newly processed and assembled components are susceptible to loosening due to factors such as heat, deformation, and rapid wear.
4. Leakage occurs. Due to looseness, vibration, and the influence of machine heat, leakage may occur on the sealing surface and pipe joints of the machine.
5. Operational errors. Due to insufficient understanding of the structure and performance of the machine, it is easy to cause malfunctions and even operational accidents due to operational errors