Sleeve type drilling rod

Abstract

The invention discloses a rotary drilling rig. The rotary drilling rig comprises a driving device, a workbench, a stand column, a drill pipe, a rotary power head, a drill bit, a winch, steel wire ropes and a pulley. The stand column and the winch are installed on the workbench, the steel wire ropes wind the winch, the outer side of the stand column is provided with a sports car track which is provided with a drill pipe sports car, the two ends of the drill pipe sports car are fixedly connected with the steel wire ropes respectively, the directions of the steel wire ropes at the two ends are changed through the pulley at the lower end of the stand column so that the steel wire ropes can be connected with the winch, and the steel wire ropes are driven by the winch to move up and down along the sports car track. The drill pipe is fixedly installed on the drill pipe sports car. Due to the fact that the stand column is provided with the sports car track and the drill pipe sports car, and direction changing is carried out through the pulley at the lower end of the stand column, a lever structure is formed, the weight of the whole car can be born by the drill pipe sports car with the pulley as a panel point, enough downwards pressure is given to the drill pipe and the drill bit through the drill pipe sports car, and the rotary drilling rig can fast and efficiently drill a hole in hard soil.

Description

technical field [0001] The present invention relates to the field of machinery, in particular to a casing drill pipe. The present invention is a divisional application of a Chinese patent application with the patent application number "2013103283277" titled "A Rotary Drilling Rig". Background technique [0002] Rotary drilling rig, also known as "rotary bucket drilling rig", Astley drilling rig, etc., is a large-diameter deep hole forming equipment. Because the "rotary bucket" or "rotary bucket" is used to fetch soil and the square or round telescopic drill rod with sword is used to increase the drilling depth, it is called "rotary drilling rig" or "rotary bucket drilling rig". ". At present, there are two most common rotary drilling rigs on the construction site: one is the attachment type modified by crawler cranes, and the other is the imported and imitated excavator chassis modified through the trapezoidal linkage mechanism and hydraulic cylinder completely according to...

AI Technical Summary

Problems solved by technology

Therefore, there are many defects in the traditional digging rig: 1. The self-weight of the drill bit is insufficient, and if it encounters hard soil, the force of downward pressure is insufficient; The frictional force is large, so that the power consumption of the whole machine is large; 3. The power head is heavy, and the drill pipe is subjected to a large force through direct drive and pressurization, so the output power of the drawworks is large, and the energy consumption of the whole machine is large.

Although this utility model can convert electric power and fuel power, to a certain extent, it can meet the needs of different working conditions and improve the practicability of the rotary drilling rig, but there are still problems in the rotary drilling rig with large size, high energy consumption, complex structure, and high cost. high problem

[0004] Moreover, the drill pipes currently used in the field of piling are all integrated separate drill pipes. How long the drill pipe is designed can only be drilled as deep as piling or drilling operations. The drill pipe used for deep hole operations is too long, resulting in The length of the entire equipment is very large, the materials consumed and the energy consumed are geometrically increased, and the cost is too high, which limits its application, and when construction is carried out on a small site or in a mountainous area, the large-volume equipment is not conducive to transportation and movement

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