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Rotary drilling rig and construction method thereof

A technology for rotary drilling rigs and drill masts, applied in the construction field of rotary drilling rigs, can solve problems such as increasing the cost of rotary drilling rigs, achieve the effects of improving work efficiency and construction safety, improving labor efficiency, and ensuring hole quality

Inactive Publication Date: 2013-08-21
CHONGQING KELEI MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the maximum gyration radius of the slewing platform is usually relatively large, and the slewing motor generally has a fast speed, the requirements for the accuracy or response speed of the sensor are very high, which further increases the cost of the rotary drilling rig

Method used

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  • Rotary drilling rig and construction method thereof
  • Rotary drilling rig and construction method thereof
  • Rotary drilling rig and construction method thereof

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Embodiment Construction

[0012] The rotary drilling rig according to the present invention includes a chassis, a rotary platform, a luffing mechanism, a drill mast, main and auxiliary winches, a power head, a drill pipe, a drill bit, and an engine. The rotary platform includes a main body of the rotary table, a deceleration device, a rotary support body 1 and a hydraulic drive part. The slewing platform realizes the slewing motion relative to the chassis by means of the slewing support body. The chassis includes a rotary locking device, which includes a hydraulic actuator, a hydraulic actuator control device and a friction plate, which can move forward under the action of the hydraulic actuator so as to be locked with the outer ring of the rotary platform. The moving track generates friction to lock the rotary platform.

[0013] The rotary automatic control system according to the present invention includes an intermediate turntable 2, an angle bottom encoder installed on the rotating shaft of the in...

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PUM

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Abstract

A rotary drilling rig comprises a chassis and a rotary platform. The chassis comprises a rotary locking device, and the rotary locking device comprises a hydraulic actuator, a hydraulic actuator control device and a friction sheet. A rotary automatic control system comprises a middle rotary disc, an angle coder arranged on a middle rotary disc rotating shaft, a PLC, a rotary power system and an alarming system. When the rotary drilling rig is utilized to drill a hole, the rotary locking device locks the rotary platform, and the angle coder on the middle rotary disc is utilized to monitor a rotary angle of a rotary bearing body. When the lifting rotation, slag discharging and hole position rotating back operation are needed, the angle coder is utilized by the rotary automatic control system to output a signal to the PLC, and the PLC controls the rotary power system to enable the rotary platform to be automatically reset. The rotary drilling rig saves cost and improves working efficiency and operation safety. The invention also relates to a construction method of the rotary drilling rig.

Description

technical field [0001] The present application relates to a rotary drilling machine, in particular to a rotary drilling machine including a rotary control system. The invention also relates to a construction method of a rotary drilling rig. Background technique [0002] Rotary drilling rig is a kind of construction machine suitable for hole forming in construction foundation engineering. It has the characteristics of large installed power, large output torque, large axial pressure, multi-purpose, flexible maneuvering, high construction efficiency and low environmental pollution. , can adapt to the soil geological conditions in most areas of our country, and has a wide range of applications. The working environment temperature is generally between -20°C and 40°C. Cooperating with different drilling tools, it can be adapted to hole forming operations under dry (short helix), wet (rotary bucket) and rock formation (core drill) conditions. For the hard clay layer, the dry rota...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B3/02
Inventor 刘劲杨越李恩熙
Owner CHONGQING KELEI MACHINERY