A pre-alarm device and method for preventing breakage of a hoisting wire rope for a rotary drilling rig
A technology of rotary drilling rig and wire rope, which is applied in the field of power transmission and transformation engineering, to achieve real-time detection, to find broken wires conveniently, and to avoid dangers
Active Publication Date: 2019-07-12
CHINA ELECTRIC POWER RES INST +2
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At the same time, during the construction process, mechanical equipment also exposed some problems
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[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0058] Such as Figures 1 to 3As shown, the present invention provides a kind of anti-break pre-alarm device for hoisting wire rope 5 of rotary drilling rig, the device includes pre-alarm 1, microcomputer 2 and sensor 3 connected in sequence;
[0059] The microcomputer 2 is connected with a laser spray gun 4; the muzzle of the laser spray gun 4 is aligned with the hoisting wire rope 5 and the distance between the hoisting wire rope 5 and the hoisting wire ro...
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The invention provides a fracture-preventing pre-alarming device and method used for a winding wire rope of a rotary drilling rig. The device comprises a pre-alarm device, a microcomputer and a sensor, all of which are orderly connected. The microcomputer is connected with a laser spray gun. A gun opening of the laser spray gun faces towards the winding wire rope and the distance between the gun opening and the winding wire rope is adjustable. The sensor is installed on the winding wire rope. The fracture-preventing pre-alarming method used for the winding wire rope of the rotary drilling rig has the following steps of monitoring whether leakage flux during operation is caused by the winding wire rope of the rotary drilling rig or not in a real-time manner; determining whether an analog voltage signal exceeds the pre-alarming value or not; labeling a wire-fracturing position of the winding wire rope and controlling the rotary drilling rig to stop working; and repairing the wire-fracturing position of the winding wire rope. The fracture-preventing pre-alarming device and method used for the winding wire rope of the rotary drilling rig have the following beneficial effects: the wire rope can be detected in a real-time manner and an alarm can be raised in a real-time manner; problems can be timely dealt with once being found, thereby avoiding dangers; the dangerous region for wire fracture of the wire rope can be labeled so as to help workers find fractured wires and eliminate fault in time, thereby ensuring that the construction of ultra high voltage transmission lines can be carried out smoothly.
Description
technical field [0001] The invention relates to the field of power transmission and transformation engineering, in particular to an anti-break pre-alarm device and method for hoisting a steel wire rope of a rotary drilling rig. Background technique [0002] UHV transmission is developed on the basis of EHV transmission, and its purpose is to continue to improve transmission capacity, realize high-power medium and long-distance transmission, and realize long-distance power system interconnection to build a combined power system. The transmission power of a 1000 kV UHV AC transmission line is about 4 to 5 times that of a 500 kV line; the plus or minus 800 kV DC UHV transmission capacity is more than twice that of a plus or minus 500 kV line. At the same time, when the UHV AC line transmits the same power, the longest power transmission distance can be extended by three times, and the loss is only 25% to 40% of that of a 500 kV line. To transmit the same power, using a 1000 kV...
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IPC IPC(8): B66D1/54
CPCB66D1/54
Inventor 贾宁汤广瑞张强丁士君夏拥军万建成江明彭飞倪达周海鹰秦剑胡春华郝玉靖马一民杨大淼
Owner CHINA ELECTRIC POWER RES INST