Rotary drilling rig and control method, device and system thereof

A technology of a rotary drilling rig and a control method, which is applied to the automatic control system of drilling, drilling equipment, earthwork drilling and production, etc., can solve the problems of affecting the service life of the main winch and the decrease of the service life of the main winch, and achieve the purpose of improving the performance and Safety, solution to life reduction, impact prevention effect

Active Publication Date: 2013-08-07
ZOOMLION HEAVY IND CO LTD
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Problems solved by technology

[0002] During the construction of the rotary drilling rig, a lot of soil will be accumulated in the drill bit. In order to quickly shake off the soil in the drill bucket, the operator often uses high frequency to quickly lift the drill pipe and then stop immediately or quickly lower the drill pipe at high frequency. Immediately stop the operation, so that the drill bucket shakes and shakes the soil in the drill bucket. Although the

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  • Rotary drilling rig and control method, device and system thereof
  • Rotary drilling rig and control method, device and system thereof
  • Rotary drilling rig and control method, device and system thereof

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[0026] Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments. It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict.

[0027] The embodiment of the present invention considers that the method of rapidly shaking the drill pipe can shake off the soil in the drill pipe, but if the shaking frequency is too fast, the impact force on the main hoist is likely to be greater, which affects its life. Based on this, the embodiment of the present invention provides a rotary drilling rig and its control method, equipment and system, which are described below through the embodiments.

[0028] See figure 1 The shown flow chart of the control method of the rotary drilling rig, the method can be applied to the controller (PLC) of the rotary drilling rig, which includes the following steps:

[0029] Step S102, obtaining a jitt...

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Abstract

The invention provides a rotary drilling rig and a control method, device and system thereof. The control method comprises the steps of obtaining a dither signal of a drill rod, confirming dither direction of the drill rod according to the dither signal, calculating dither frequency of the drill rod in the dither direction, and judging whether the dither frequency is larger than a set dither threshold or not, wherein the dither speed of the drill rod is controlled if the dither frequency is larger than the set dither threshold. By means of the rotary drilling rig and the control method, the problem that the service life of a main hoist is shortened by means of a quick drill rod dither mode is solved, and the using performance and the safety of the device are improved.

Description

technical field [0001] The present invention relates to the field of engineering machinery, and more specifically, to a rotary drilling rig and a control method, device and system thereof. Background technique [0002] During the construction of the rotary drilling rig, a lot of soil will be accumulated in the drill bit. In order to quickly shake off the soil in the drill bucket, the operator often uses high frequency to quickly lift the drill pipe and then stop immediately or quickly lower the drill pipe at high frequency. Immediately stop the operation, so that the drill bucket shakes and shakes the soil in the drill bucket. Although the speed of shaking the soil is increased, but because the weight of the drill pipe is about 5 tons, it is suddenly lifted or lowered, and suddenly stops. The impact of the main winch is very large, which seriously affects the service life of the main winch. [0003] Aiming at the problem in the related art that the service life of the main ...

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Application Information

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IPC IPC(8): E21B44/00
Inventor 张国栋李明张君赵亮张刊
Owner ZOOMLION HEAVY IND CO LTD
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