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How to Choose Drill Bits In Borehole Drilling Machine Construction?

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  1. The main function of   Advanced Crawler Mounted DTH Drilling Rig  is to dig holes on the surface. Due to the different depths of the pile holes to be constructed, various terrain structures will be encountered during drilling. It can be roughly divided into the following categories: (1) Clay: Use a rotary drilling bucket with a single bottom. If the diameter is small, use a two-part bucket or a bucket with a soil unloading plate. (2) Silt, low-cohesive soil layer, sandy soil, and poorly cemented pebble layer with a small particle size can be equipped with a double-bottom drilling bucket. (3) Hard clay: Use a rotary drilling bucket with a single inlet (single and double bottoms), or a bucket tooth straight screw. (4) Frozen soil layer: Bucket-tooth straight spiral drill bucket and rotary drilling bucket with low ice content can be used, and cone spiral drill bit with high ice content can be used. It should be noted that spiral drill bits are used for soil layers (exce...

How to Pay Attention to the Maintenance of Each System of Crawler Drilling Rig?

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  How to pay attention to the maintenance of various systems of   hydraulic drill rigs ? The following   hydraulic DTH Drilling Rig Supplier  will explain the maintenance of each system of crawler drilling rigs. Cooling system: Regularly check the working condition of the engine cooling system to ensure that the cooling system has complete parts and good performance. In particular, check the performance of the cooling pump, the tightness of the fan tape, whether the vents and vents of the radiator cover are unblocked, and whether the coolant is Adequacy, whether the thermostat and fan clutch are in a good performance, etc. Clean the dust and sludge on the air-cooled engine cylinder liner radiator and radiator in time, and clean the scale and impurities in the water radiator of the water-cooled engine in time. Electrical system: Regularly check whether the terminal is loose, whether the wire ends and contacts are oxidized or ablated. It is necessary to adjust the gene...

Bearing Use of Crawler Down-the-Hole Drill

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  Bearings are familiar to everyone and are closely related to our lives and work. From bicycles to automobiles or construction machinery, there are bearings, and Drilling Rig is inseparable from them. The bearings of the   Advanced Crawler Mounted DTH Drilling Rig   are precision parts, and they must be maintained in daily work to make it more effective. Pay attention to the following points when using bearings. When installing the bearing, do not press hard, do not use a hammer or other hard objects to strike, and do not transmit pressure through the rolling elements; use professional tools when installing, do not brute force; usually keep the rotary excavator bearing clean, Even a trace of dust may cause bearing wear; the bearings of rotary excavators should be treated with rust prevention. The bearing is a precision part of the crawler drilling rig. The damage of one small thing will cause the failure of the entire crawler drilling rig. Therefore, we must pay att...

Preparation Work Before Hydraulic Dth Drill Rig Construction.

  The construction of hydraulic down-the-hole drilling rigs has the characteristics of fast hole formation, high quality, no noise, and no pollution. Because of its unparalleled advantages in the construction of cast-in-place piles, it is favored by more and more construction units. Therefore, the current price segment Drilling rigs are the main force in underground engineering construction. 1. Construction site:  hydraulic DTH Drilling Rig  for pile foundation construction. In the preliminary preparation stage, the construction site is required to be high. Due to the heavyweight of the rotary drilling rig, the operation of the rotary drilling rig requires the machinery to remain stable, so the operation The site reaches a certain bearing capacity. If the working surface is a relatively soft stratum, the supporting layer should be backfilled so that the site can carry the  hydraulic DTH Drill Rig , and the cranes (above 25t), concrete filling trucks and other eq...

Maintenance of Power Head of Crawler DTH Drill Rig

  The powerhead is the most important working mechanism of the  crawler DTH Drill Rig . Effective maintenance and maintenance measures can better guarantee the performance of the drill and create greater economic benefits for customers. 1. Maintenance and maintenance of powerhead drive device Change the oil for the first time after 100 hours of work in the early stage; change the lubricating oil every 1000 hours of work or 12 months (according to the earliest); check the tightness of all screws and bolts at least once a month. 1. Check and add lubricating oil for the driving device: a. Observe the oil level through the oil level sight hole above the powerhead reducer to ensure that the oil level is between the upper red marking line and the lower red marking line. b. If the oil level is lower than the lower red marking line, you need to add lubricating oil through the oil filler port until the oil level is between the upper red marking line and the lower red marking line. 2. I...

Common Overhaul Parts and Precautions of Rotary Drilling Rig

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  With the use of the crawler rig equipment for a certain period of time, various internal problems began to surface, and the main engine overhaul was timely carried out to systematically solve the internal safety risks. Generally speaking, after working for a certain period of time, the following five problems will occur.   Crawler Mounted Drill Rig Supplier  shares this article for you. 1. The gap increases. The increase in the distance between the core components of the main engine will increase the leakage during the drilling process and reduce equipment efficiency. In addition, the expansion of the gap between the core components of the main engine, the back cover, and the bearing will mainly affect the tightness and drilling efficiency of the rotary drilling rig. At the same time, this will also have a great impact on the service life of the main engine. 2. Increased wear. Normally, the operation of the machine will inevitably bring wear. Under normal circumstances,...

Three Accidents Prone to Crawler Rigs?

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  Crawler Mounted Drilling Rigs  drilling problems-drill bit and drill rod buried ① The complexity of geological structure. Because the drill bit and the drill pipe are deep to work 30-50m deep, and the geological structure is complex, there are sandy clay layers, hard weathered rocks, and seemingly loose iron plates with great friction Sand, the most common is a mixture of pebbles and fine sand, which causes an uneven force on the drill bit. When the construction site encounters such a complex formation, the drilling speed and the scale of each drilling should be slowed down first, and the drill rod should be reversed a few more times before lifting the drill bit. ② Mud quality. Mud quality is one of the most important factors affecting pile hole collapse, and whether the pile hole collapses is one of the most direct reasons for the bit and drill pipe being buried. Therefore, the mixing mud must be prepared according to the ratio of bentonite: caustic soda: water = 1:1:50 to ...