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Casing-mountable rotary drilling rig

A technology of rotary drilling rig and casing, which is applied in drilling equipment, earthwork drilling, drilling equipment and methods, etc., to avoid coordinated work, reduce mechanical equipment, and simplify procedures.

Active Publication Date: 2017-05-03
SHANGHAI ZOOMLION HEAVY IND PILING MACHINERYCO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on the above structure, whether it is possible to design a rotary drilling rig that can be installed with a casing by using the structure of the rotary drilling rig itself is an important research and development direction for rotary drilling rig manufacturers. However, there are no relevant companies currently conducting research on this aspect

Method used

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  • Casing-mountable rotary drilling rig
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  • Casing-mountable rotary drilling rig

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Embodiment Construction

[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0031] figure 1 It is a structural schematic diagram of a rotary drilling rig according to an embodiment of the present invention, figure 2 yes figure 1 Structural schematic diagram of medium pressure plate, clamping structure and oil circuit rotary joint, image 3 yes figure 2 bottom view of Figure 4 yes figure 2 sectional view of Figure 5 is a schematic diagram of the platen structure, Figure 6 is a schematic diagram of the structure of the movable seat, Figure 7 is a schematic diagram of the structure of the clamping claw, Figure 8 is a schematic diagram of the hydraulic cylinder, Figure 9 It is a schematic diagram of the structure of the oil circuit rotary joint, Figure 10 yes Figure 9 cutaway view. For the convenience of descr...

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Abstract

The invention provides a rotary drilling rig on which a protective casing can be installed. The rotary drilling rig comprises a round-plate-shaped press plate, a clamping structure, a power head and a main rig hydraulic valve. The rotary drilling rig can achieve the functions of protective casing hoisting, downward pressing for penetration into mud and the like, mechanical devices required for protective casing installation are decreased, coordination work in installation is avoided, installation procedures can be simple, manpower and material resources can be saved, and meanwhile the working efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a rotary drilling rig capable of installing a casing. Background technique [0002] As construction machinery, rotary drilling rigs have been widely used in bored pile operations for basic projects such as municipal construction, highway bridges, and high-rise buildings. [0003] During the construction operation of the rotary drilling rig, sometimes it involves drilling in the river with flowing water, and the flowing water or silt in the river is quite unfavorable to the construction, which will wash away and destroy the formed pile holes, which will bring unnecessary trouble to the construction . In order to prevent the running water or silt of the river from scouring the formed pile holes, it is necessary to set up a water-proof casing around the pile holes before drilling. [0004] Casing generally adopts the pipe body that steely material is made, and its vo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B7/20
Inventor 刘周斌张睿杨涛张旭辉尹华
Owner SHANGHAI ZOOMLION HEAVY IND PILING MACHINERYCO
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