Brief analysis of drilling rig application scope and rig maintenance

Due to the different purposes and construction objects of the rock drilling and excavation engineering, there are many types of drilling rigs. Drills can be classified according to their purpose, such as core drilling rigs, oil drilling rigs, hydrogeological surveys and well drilling rigs, engineering geology exploration rigs, tunnel rigs and construction rigs. Drilling rigs are mechanical devices that drive drilling tools into the ground in geological exploration to obtain physical geological data. Also known as drilling machine. The main function is to drive the drilling tool to crush the rock at the bottom of the hole, and to drill or raise the drill in the hole. It can be used to drill cores, cores, cuttings, gas samples, liquid samples, etc., in order to explore underground geological and mineral resources.

Rig maintenance and regular inspection items

a. Check the main structural condition of the drilling rig, bolts of structural connectors, connection pins of structural parts, welds of various structural parts, structure of the structural baskets, and safety protection conditions. In particular, prior to entering the field, qualified units should be The safety performance is tested and can be used only after passing the test;

b. Regularly check the status of various power heads, working cylinders, and drill stems;

c. Regularly check the hoist rope anti-roping shedding device and the height of both sides of the hoisting machine, the condition of the drum wall, and the number of weeks on the drum at the end of the wire rope. In particular, check the condition of the brake opening at any time to check key items. ;

d. Inspection of electrical systems, the main inspection items are: special box setting and short circuit protection and leakage protection device, emergency power off switch, electrical box damping device, work device on the fixed cable, lighting circuit, grounding line is strictly prohibited Flow zero line;

(1) Maintenance of the drilling rig:

1 Wipe the outer surface of the drilling rig cleanly, and pay attention to the cleanliness and good lubrication of the rig base slide, vertical shaft and other surfaces.

2 Check that all exposed bolts, nuts, and safety pins are solid and reliable.

3 Lubricate the lubricant or grease according to the lubrication requirements, see Figure 2 and Table 1.

4 Check the oil level of the gearbox, transfer case and hydraulic system tank.

5 Check the oil leaks in various places and handle them as appropriate.

6 Eliminate other failures that occur in this class.

(2) Week rig maintenance:

1 Thoroughly perform the items required for class maintenance.

2 Remove the dirt and dirt from the chuck and kava tooth surfaces.

3 Clean the oil and mud on the inner surface of the brake.

4 Exclude the failure that occurred during this week.

(3) Monthly rig maintenance:

1 Thoroughly carry out the required items for class and weekly maintenance.

2 Disassemble the chuck, clean the slips and the kava seats. If damaged, replace it in time.

3 Clean the oil tank filter and replace the dirty or dirty hydraulic oil.

? 4 check the integrity of the main parts, if any damage should be promptly replaced, can not be injured work.

5 Completely eliminate the failures that occurred during the month.

6 If the drilling rig is not used for a long period of time, the exposed parts (especially the exposed surfaces) should be greased.

The rig is used in geological exploration and is a mechanical device that drives the drilling tool to drill underground to obtain physical geological data.

Rig applications:

1. In the survey of mineral deposits, especially in the survey of mineral deposits such as non-ferrous metal rare metals, tunnel drilling is used to recover the mineral deposits, and the exploration and exploration of geological structures and the determination of ore bodies, sampling and verification are carried out.

2. In mine excavation, commonly used tunnel drilling techniques are used to drill underground observation holes, ventilation holes, drainage holes, gas discharge holes, grouting holes, blast holes, anchor holes, and pilot holes for excavation tunnels.

3. In the field of other geotechnical engineering construction, the equipment and technology for tunnel drilling can be used for the support of deep foundation pits for the reinforcement of slopes in dam foundations, as well as underground engineering construction in industrial commercial traffic and military affairs.