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Rotary Drilling Rig

A technology for rotary drilling rigs and rear outriggers, which is applied to rotary drilling rigs, rotary drilling, earthwork drilling and mining, etc. It can solve problems such as bolt loosening, breaking, and potential safety hazards of rotary drilling rigs, and avoid bolt stress , Improving the hole forming accuracy and improving the safety effect

Active Publication Date: 2017-03-29
SHANGHAI ZOOMLION HEAVY IND PILING MACHINERYCO +1
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  • Claims
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AI Technical Summary

Problems solved by technology

The legs of this rotary drilling rig are combined with the counterweight. When the rotary drilling rig is drilling, the upward reaction force from the ground is transmitted to the counterweight through the outriggers, and then the counterweight transmits the force to the rotary platform. The counterweight Generally, it is connected to the rotary platform by bolts, which causes the connecting bolts between the counterweight and the rotary platform to be subjected to a large tension, and the bolts may be loosened or broken, which makes the rotary drilling rig a certain safety hazard

Method used

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Embodiment Construction

[0026] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the rotary drilling rig proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. The details are as follows:

[0027] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings. Through the description of specific implementation methods, the technical means and effects of the present invention to achieve the intended purpose can be understood more deeply and specifically, but the attached drawings are only for reference and description, and are not used to explain the present invention limit.

[0028] figure 1 It is a structural schemati...

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Abstract

A rotary drilling rig comprises a revolution platform and a back support leg device arranged on the revolution platform. The back support leg is formed by a back support leg and a supporting seat for installation of the back support leg, wherein the supporting seat is fixed on the revolution platform; the supporting seat is formed by a supporting base plate and an upper side baffle plate over the supporting base plate; the back support leg is formed by an anti-falling plate and an installation plate arranged under the anti-falling plate; the anti-falling plate is arranged over the upper side baffle plate; the installation plate is arranged under the supporting base plate; a first fixing hole is formed in the supporting base plate; the installation plate is provided with a second fixing hole matched with the first fixing hole; and fasteners are disposed in the first and second fixing holes to fixedly connected the supporting base plate with the installation plate. The back support leg device of the rotary drilling rig possesses great load bearing capability and great whole rig stability and can improve drilling precision; bolt stress of the balance weight and fixed balance weight can be avoided; and safety of the rotary drilling rig can be improved.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a rotary drilling rig. Background technique [0002] Rotary drilling rig is a basic construction equipment with strong applicability, high degree of automation, high hole forming efficiency and low environmental pollution. The rotary drilling rig is composed of a crawler chassis, a boarding part, a mast assembly, a drilling system and a hydraulic system. The crawler chassis is used for moving, and the boarding part and others are used for drilling operations. [0003] In the construction process of the rotary drilling rig, in order to maintain the balance of the fuselage, a counterweight structure is set on the slewing platform of the upper part of the car to move the center of gravity of the rotary drilling rig to the relatively rear. The fuselage does not tilt forward when lifting, and it must be ensured that the fuselage of the rotary drilling rig does not turn backward w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B15/00E21B3/00E21B7/02
Inventor 高超罗慧常延沛胡文江
Owner SHANGHAI ZOOMLION HEAVY IND PILING MACHINERYCO
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