Rotary Drilling Rig Follower Frame and Rotary Drilling Rig

Abstract

The invention provides a follow-up frame of a rotary drill rig and the rotary drill rig. The follow-up frame of the rotary drill rig is arranged between a mast and a drill rod of the rotary drill rig and comprises a drill rod guide mechanism, a sliding lug mechanism, a first elastic element connected between the drill rod guide mechanism and the sliding lug mechanism and used for buffering, and a guiding assembly arranged on the drill rod guide mechanism and the sliding lug mechanism and used for guaranteeing transversely-linear sliding of the drill rod guide mechanism and the sliding lug mechanism. The first elastic element and the guiding assembly are arranged between the drill rod guide mechanism and the sliding lug mechanism, so on the basis of guaranteeing relatively transversely-linear sliding of the drill rod guide mechanism and the sliding lug mechanism, damage to the mast by transverse impact force generated by the drill rod in an operation process and impact force between the drill rod and the drill rod guide mechanism through the first elastic element is also reduced, frequency of generation of the situation that the mast shakes due to the impact force is reduced, and therefore the service life of the drill rod and the service life of the mast are prolonged, and operation stability of the rotary drill rig is improved.

Description

technical field [0001] The invention relates to the field of a rotary drilling rig follower, in particular to a rotary drilling rig follower and a rotary drilling rig with the rotary drilling rig follower. Background technique [0002] Rotary drilling rig is a large-diameter and efficient hole-forming equipment used in foundation construction. It uses a drill pipe that is always in a vertical direction to directly rotate and excavate the ground, thereby quickly forming pile holes of required diameter and depth on the ground. In order to ensure the verticality of the pile hole in the process of drilling, lifting and lowering, a rotary drilling rig follower frame is usually installed on the drill pipe. Such as figure 1 The follower frame of the rotary drilling rig shown includes a drill pipe guide mechanism 1' provided with a through hole 3' and sliding lugs fixed on two struts 4' of the drill pipe guide mechanism 1' by positioning bolts 5' 2'. When using the rotary drillin...

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Problems solved by technology

[0003] However, the rotary drilling rig follower also brings many practical problems. For example, during work, the drill pipe usually transmits lateral impact and external force to the rotary drilling rig follower, power head and other mechanisms. Because the drill pipe guide mechanism 1 ' and sliding lug 2' are rigidly connected, therefore, the traveling frame of the rotary drilling rig directly transmits the above-mentioned lateral impact and external force to the mast, which will cause problems such as tilting and shaking of the mast, poor working stability of the main engine, etc. Breakage, cracking of mast and related structural parts, cracking of guide rail, damage or severe wear of sliding lugs, etc.

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