Crown block safety slide wire point inspection device and method

Abstract

The invention relates to a crown block safety slide wire point inspection device and method which are used for point inspection of an H-shaped high-temperature-resistant slide wire. According to the technical scheme, a convex lens is rotated towards a point inspector by 20 degrees, light is irradiated to the convex lens through an inspection flashlight, a crown block operator operates a crown block to slowly move from one end of a slide wire to the other end of the slide wire, and the point inspector stands on a point inspection platform and conducts point inspection on the interior below theslide wire by observing imaging on the convex lens. The beneficial effects are that the method achieves the large-area quick and accurate point inspection of the H-shaped high-temperature-resistant slide wire through employing the convex lens imaging principle, improves the inspection effect, reduces the fatigue strength of a worker, avoids the accident hidden troubles that a crown block is out ofcontrol and damages the safety of ground personnel and equipment because of the damage of the slide wire, and reduces the production cost.

Description

technical field [0001] The invention relates to a point inspection device and method for a safety sliding wire of a crane, and belongs to the technical field of point inspection of H-type high temperature resistant sliding wires. Background technique [0002] A large part of the cranes in iron and steel enterprises use H-type high-temperature resistant slide wires for conducting operations. The sliding line has the advantages of safety, economy and energy saving, large carrying capacity and low cost. It is suitable for occasions with high frequency of use, fast running speed and poor environment. But at the same time, there are also disadvantages such as the hidden fault point is relatively deep and difficult to check, and the expansion and contraction is serious with seasonal temperature changes. [0003] In order to ensure the normal operation of the trolley line and prolong its service life, periodic inspection, maintenance and maintenance must be carried out on the bru...

AI Technical Summary

Problems solved by technology

However, a large-scale metallurgical enterprise has a production line of several hundred meters, and the inspection personnel cannot maintain the inspection posture for a long time. It is difficult to achieve the desired effect by using this method in the tense production rhythm. Comprehensive inspection

Failure to check out hidden dangers in time will lead to short circuit or grounding accidents. In serious cases, the sliding wire will fall off tens of meters, threatening the safety of ground personnel and equipment.

Inspection personnel can only replace the sliding wire and sliding knife regularly, and the maintenance cost is high. In winter and summer, due to thermal expansion and contraction of this type of sliding wire, the deformation of the sliding wire joint will cause the sliding blade to fall off, resulting in short circuit or grounding accident. In severe cases, the sliding line will fall off tens of meters, threatening the safety of ground personnel and equipment, making it difficult to repair and causing great losses

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