Gas spring space three-degree-of-freedom adaptive mechanism for surface non-destructive testing

Abstract

The invention relates to a gas spring space three-degree-of-freedom adaptive mechanism for surface non-destructive testing, and the gas spring space three-degree-of-freedom adaptive mechanism for surface non-destructive testing comprises a vertical rod, ball hinges, gas springs and a probe clamping platform; the upper end of the vertical rod is connected to a non-destructive testing automation equipment platform, the lower end of the vertical rod is respectively connected to one ends of the three sets of the gas springs through the ball hinge, and the other ends of the three sets of gas springs are respectively rotatably connected to the upper surface of the probe clamping platform by rotating pairs; the lower surface of the probe clamping platform is provided with three ball wheels distributed in an equilateral triangle corresponding to the rotating pairs; the three ball hinges connected to the lower end of the vertical rod are distributed in an equilateral triangle, and the three rotating pairs on the probe clamping platform are distributed in an equilateral triangle. The gas spring space three-degree-of-freedom adaptive mechanism has three degrees of freedom and an automatic return function, can adapt to the bi-directional irregular surface features of a fan blade surface, and automatically adjusts the posture and the angle of the probe clamping platform, so that a detectingprobe is always closely attached to the surface of a fan blade.

Description

technical field [0001] The invention belongs to the technical field of non-destructive testing devices, in particular to an air spring space three-degree-of-freedom self-adaptive mechanism for curved surface non-destructive testing. Background technique [0002] Wind energy is currently one of the important sustainable energy sources that countries around the world are focusing on and competing to utilize. Wind turbines are generally installed in environments such as hills, grasslands, and shallow seas. Blades are one of the core components of wind turbines, and the manufacturing and maintenance costs account for 20% to 30% of the entire wind turbine equipment. The height of the wind turbine tower is about 100 meters, and the diameter is about 3 to 4 meters. The blades of the fan are about 50 meters long and weigh several tons, even more than ten tons. Although the fan blades have undergone strict quality inspection before leaving the factory, there are still some natural ...

AI Technical Summary

Problems solved by technology

Although the fan blades have undergone strict quality inspection before leaving the factory, there are still some natural structural defects below the surface of the blades: for example, fine pores, fine cracks, fine delamination, etc. (the natural structural defects of this material do not belong to blade quality problems)

The central hub of the wind turbine is tens of meters away from the ground and can reach a maximum of more than 100 meters. The inspection process not only wastes a lot of manpower and material resources, but also professional inspectors face great safety risks

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