Full-casing full-rotary drilling machine equipment

A technology of full rotary drilling rig and full casing, which is applied in drilling equipment, drilling equipment and methods, and earth-moving drilling and mining, etc., can solve the problems of time-consuming, inaccurate, inconvenient operation, etc., achieve high reuse rate and reduce infrastructure Cost, high flexibility

Active Publication Date: 2021-03-09
CHINA RAILWAY FIFTH SURVEY & DESIGN INST GRP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These conventional methods have the problems of inaccurate accuracy, inconvenient operation, time-consuming and manpower-consuming

Method used

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  • Full-casing full-rotary drilling machine equipment
  • Full-casing full-rotary drilling machine equipment
  • Full-casing full-rotary drilling machine equipment

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Embodiment Construction

[0029] In order to make the technical solutions and advantages in the embodiments of the present application clearer, the exemplary embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only part of the embodiments of the present application, and Not an exhaustive list of all embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0030] Verticality is an important parameter to measure the quality of piles. If the piles are inclined beyond a certain angle, the bearing capacity of the piles will be reduced, and they will be discarded if they cannot be used, resulting in economic losses, and will also affect the construction progress and project quality. The verticality of the casing determines to a certain extent the verticality of the pile ...

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Abstract

The embodiment of the invention provides a full-casing full-rotary drilling machine device. The full-casing full-rotary drilling machine device comprises a main rack, a rotary drilling device, a deviation rectifying rod and a controller, wherein the main rack is provided with vertical supporting columns, horizontal supporting columns, a first sensor and an adjusting piece, the first sensor and theadjusting piece are arranged at the lower ends of the vertical supporting columns, the rotary drilling device is connected to the horizontal supporting columns and used for driving a casing to do rotary motion, the deviation rectifying rod is connected to the vertical supporting columns and provided with a telescopic rod, a second sensor and a contact end, the contact end is used for making contact with the outer cylindrical surface of the casing, the second sensor is arranged between the contact end and the telescopic rod, the controller is used for controlling the adjusting piece to adjustthe corresponding vertical supporting rods when it is determined that the main rack is inclined according to the detection result of the first sensor, and is further used for controlling the telescopic rod to adjust the casing until the perpendicularity of the casing meets a preset requirement when it is determined that the casing is inclined according to the detection result of the second sensor.According to the equipment, automatic deviation rectification of the equipment and the casing is achieved, and the flexibility and the repeated utilization rate are high.

Description

technical field [0001] The present application relates to construction machinery equipment technology, in particular to a full-casing full-rotation drilling rig equipment. Background technique [0002] With the acceleration of the urban construction process and the continuous improvement of the road network, how to carry out the enclosure structure construction, foundation reinforcement treatment and construction under the condition of limited clearance under the high-speed rail, municipal, bridge and other infrastructure without affecting the safety of the infrastructure Stable operation is a problem that has plagued the construction industry for a long time. [0003] In scenarios such as envelope construction, it is usually necessary to use a full casing and full rotary drilling rig to form piles. Full-casing full-rotary drilling rig generally refers to a device that uses a full-rotary drilling rig to apply torque and vertical load to the casing to make the casing rotate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/20E21B15/00E21B44/00
CPCE21B7/20E21B15/00E21B44/00
Inventor 毛忠良刘春晓陈晓莉王旭明谌启发刘柏林冷长明丁新红唐沛莫万远郭靖
Owner CHINA RAILWAY FIFTH SURVEY & DESIGN INST GRP
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