Rotary drilling rig and its control method, device and system
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 such as the decrease of the service life of the main winch and the impact on the service life of the main winch, and achieve the purpose of solving the problem of life decrease, Improve usability and safety, and prevent impact
Active Publication Date: 2016-02-10
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 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 winch is reduced by rapidly shaking the drill pipe, no effective solution has been proposed so far
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[0026] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. 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.
[0027] The embodiment of the present invention considers that although the way of quickly shaking the drill pipe can shake off the soil in the drill pipe, if the shaking frequency is too fast, the impact force on the main winch will be relatively large, which will affect its life. Based on this, embodiments of the present invention provide a rotary drilling rig and a control method, device and system thereof, which will be described below through embodiments.
[0028] see figure 1 The flow chart of the control method of the rotary drilling rig shown, the method can be applied on the controller (PLC) of the rotary drilling rig, and it includes the following steps:
[0029] Step S102, obtaining the s...
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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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IPC IPC(8): E21B44/00
Inventor 张国栋李明张君赵亮张刊
Owner ZOOMLION HEAVY IND CO LTD