Welding seam detection robot for ship oil tank and detection method

Abstract

The invention discloses a welding seam detection robot for a ship oil tank and a detection method. Three functional parts, namely a moving chassis, an oil stain cleaning and brushing device and a detection device, are assembled together through a base frame, and the oil stain cleaning and brushing device, the moving chassis and the detection device are sequentially arranged from front to back; the oil stain cleaning and brushing device is used for cleaning oil stains on the inner wall of the oil tank and preparing for detection; the moving chassis serves as a power system, provides power for the robot and enables the robot to advance, retreat and steer; and the detection device is used for detecting the welding seam brushed by the oil stain cleaning and brushing device so as to realize accurate detection of the quality of the welding seam. According to the detection method, the detection robot is adopted, and the welding seam detection robot for the ship oil tank has the advantages of being simple in structure, reasonable in design, convenient to use, accurate in detection and the like.

Description

technical field [0001] The invention discloses the technical field of weld seam detection for ship oil tanks, in particular to a weld seam detection robot and detection method for ship oil tanks. Background technique [0002] At present, ships are gradually developing in the direction of large-scale, so the demand for fuel is also increasing. According to the data in the past ten years, the average annual growth rate of the cargo capacity of each commercial cargo ship in the world is close to 2%, which means Fuel consumption also increases accordingly. With the enlargement of ships, higher requirements are put forward for the overall and local strength of the hull. The extensive use of high-strength steels and polymer steels, as well as the widespread use of rare gas shielded welding, have placed great pressure on the design and maintenance of hull structures. Management brings new challenges. [0003] According to the overall structure of a large ship, the inner shell pla...

AI Technical Summary

Problems solved by technology

This method has the following disadvantages: it needs chalk slurry and kerosene, it is inconvenient to spray when inspecting large oil tanks, and it needs to wait for half an hour. It is also troublesome to check whether the spots exist, and it takes a lot of manpower, material resources and time. The work efficiency is not high; the air tightness test is to carry out the air tightness test on the equipment, so that the pressure is raised to the specified pressure, kept for 10 minutes, and then lowered to the design pressure, and soapy water is applied to the weld and connection parts to check whether it is correct or not. Blowing is qualified

Additional human and financial resources are required to purchase and use the press, and the inspection process is cumbersome

[0005] In comparison, radiographic flaw detection is relatively simple, and only radiographic flaw detection equipment is needed. However, the current radiographic flaw detection is manual, that is, the staff climbs the high scaffold to a higher position and uses the detection equipment to inspect the storage area. The inner wall of the oil tank is tested. Such high-altitude operations will not ensure the safety of the operators. At the same time, the measurement of other parameters is not guaranteed immediately, which may easily lead to safety accidents.

[0006] In view of the above problems, how to develop a detection robot to replace the above-mentioned manual detection and solve the problems of cumbersome inspection, long time-consuming and heavy workload has become an urgent problem to be solved

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