Engine speed control method and system for drilling rig
A technology of engine speed and control method, applied in the direction of engine control, machine/engine, mechanical equipment, etc., can solve the problems of high fuel consumption, high noise and short life of the engine
Active Publication Date: 2016-08-17
ATLAS COPCO (NANJING) CONSTR & MINING EQUIP CO LTD
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Problems solved by technology
[0006] Aiming at the above-mentioned defects existing in the prior art, the technical problem to be solved by the present invention is to overcome the disadvantages of high fuel consumption, high noise and short service life of the engine caused by the single operating speed of the engine.
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[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.
[0021] The present invention further subdivides the engine speed into three gears, low gear lower than or equal to 1200rpm, middle gear of 1400rpm and high gear equal to or higher than 1800rpm. Wherein, the medium speed gear in this embodiment adopts 1400rpm, and in actual operation, the medium speed gear is generally equal to 1400rpm, and can also be slightly greater or slightly less than 1400rpm, but the rotating speed is within the range of 1400±10rpm.
[0022] Such as figure 2 As shown, in the present invention, the working conditions of the drilling rig are further subdivided, wherein in the idling and traveling conditions, the engine works in low gear.
[0023] When the drilling rig is drilling, when the air compressor is in a strong wind, the engine works at high speed. In thi...
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The invention discloses a method for controlling the rotation speed of an engine of a drilling machine. The method includes the first step of classifying the rotation speeds of the engine into the low gear, the top gear and the intermediate gear between the top gear and the low gear, and the second step of controlling the rotation speed of the engine according to the working conditions of the drilling machine, wherein the engine works at the low gear when the drilling machine is in an idling and running condition. A low gear branch circuit, an intermediate gear branch circuit and a top gear branch circuit are arranged in an engine control system, and the corresponding rotation speed which the engine can work at can be controlled by switching on one branch circuit and switching off the other two branch circuits simultaneously. The invention further discloses a corresponding system for controlling the rotation speed of the engine of the drilling machine. The rotation speeds of the engine are subdivided into three gears, and the working conditions of the drilling machine are subdivided into an idling working state and the other six working conditions. The engine can work at the corresponding rotation speed according to requirements of actual work; on the most of working conditions, the engine does not work at the top gear, so the purposes of reducing power consumption, saving fuel, lowering noise and prolonging the service life of components can be achieved.
Description
technical field [0001] The invention relates to a drilling rig, in particular to a method and system for controlling the rotational speed of an engine of a drilling rig, which can achieve the purpose of energy saving and noise reduction. Background technique [0002] At present, the main driving mode in the drilling rig is that an engine drives the air compressor and the oil pump at the same time, and the oil pump and the air compressor are always working from the beginning of the engine operation. The engine usually needs to be preset with two different speeds: a low speed gear with a speed lower than or equal to 1200rpm and a high speed gear with a speed equal to or higher than 1800rpm. When the engine is started and stopped and during daily maintenance, the engine is in the idling condition, the engine speed is low, and it is in a low gear; while the engine is in other working conditions, its speed is high, and it is in a high gear. [0003] The working conditions of the...
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IPC IPC(8): F02D29/00
Inventor 郑雨苍焦德义丁河江胡俊
Owner ATLAS COPCO (NANJING) CONSTR & MINING EQUIP CO LTD