Automatic control system of rock drill
An automatic control system and technology of rock drills, which are applied in the automatic control system of drilling, drilling equipment, earth-moving drilling, etc., can solve energy waste, reduce production efficiency, and it is difficult to achieve the best matching state of impact frequency and rotation speed, etc. problems, to achieve the effect of improving system control accuracy, improving production efficiency, and saving rock drilling costs
Inactive Publication Date: 2013-07-17
HUNAN NONFERROUS HEAVY MACHINERY
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Problems solved by technology
However, since manual adjustment has a lot to do with the operator's experience and operating level, it is difficult to achieve the best matching state between the impact frequency and the rotation speed, and there are cases of under-breaking or over-breaking rocks, resulting in huge energy waste and at the same time reducing productivity
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[0010] The invention abandons the misunderstanding of adjusting the impact frequency of the rock drill, and realizes the automatic adjustment of the rock drill's rotation speed by identifying the impact frequency of the rock drill and combining the characteristic parameters of the drilling tool. Specifically, the present invention extracts the pulsation information of the power system of the rock drill or the impact frequency of the rock drill as feedback information reflecting the impact frequency of the rock drill, and implements rotational speed control on it, thereby realizing automatic matching and adjustment of the rotational speed of the rock drill.
[0011] Such as figure 1 As shown, the present invention includes a rock drilling machine, an actuator, a sensor, a data acquisition card and an industrial computer. The output end of the sensor is connected to the input end of the data acquisition card through the cable, the output end of the signal acquisition card is con...
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The invention discloses an automatic control system of a rock drill. The automatic control system comprises a rock drill, an actuator, a sensor, a data acquisition card and an industrial personal computer. The output end of the sensor is connected with the data acquisition card through cables. The output end of the data acquisition card is connected with the industrial personal computer through serial ports. The industrial personal computer is connected with the actuator through RS-232 interfaces. The actuator is connected with an electro-hydraulic proportional valve used to control the rotary of the rock drill through electric cables. According to this arrangement, the optimal rotating speed of the rock drill which is determined by impacting frequency of the rock drill and drill features can be automatically matched by means of adopting a closed-loop control system. Accordingly, speed of drilling rocks and control accuracy can be significantly improved, cost of drilling rocks can be reduced, unnecessary waste can be avoided substantially, production efficiency of the rock drill can be largely enhanced, and a solid foundation of energy saving and environmental protection endeavor is laid.
Description
technical field [0001] The invention relates to an automatic control system, in particular to an automatic control system for a rock drilling machine. Background technique [0002] At present, various types of hydraulic rock drills, pneumatic rock drills, etc. are the main equipment for mining. The perforation efficiency of various rock drills directly determines the production capacity of the mine. At present, all kinds of rock drills can manually adjust the rotation speed under the condition of fixed impact frequency to adapt to different perforation speeds. However, since manual adjustment has a lot to do with the operator's experience and operating level, it is difficult to achieve the best matching state between the impact frequency and the rotation speed, and there are cases of under-breaking or over-breaking rocks, resulting in huge energy waste and at the same time reducing production efficiency. Contents of the invention [0003] The object of the present inven...
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IPC IPC(8): E21B44/00
Inventor 李东明张永玺闫杰黎忠炎龙国强
Owner HUNAN NONFERROUS HEAVY MACHINERY