Abstract: The present invention relates to a climbing machine and a moving method therefor. The climbing machine includes a machine body, a mechanical arm, and at least two ropes, each rope connects a suspension mechanism and the machine body; the suspension mechanism is connected to or disengaged from an object structure, the length of the rope between the suspension mechanism and the machine body is variable; through dragging or pulling of the rope, the machine body can move on the object structure; the mechanical arm connects a gripping mechanism and the machine body; the gripping mechanism can grip and move any suspension mechanism and disengage a gripped suspension mechanism. In the present invention, the machine body moves without interference, and can be pulled not only on a smooth surface but also on a hollow or bending surface, and features a simple structure, a wide application scope, and the like.

Abstract: The present invention relates to a suction device, including a body. A cavity is disposed in the body. The cavity has a closed end face and an open end face. The open end face forms an end face to suck a workpiece. A tangential nozzle is disposed on a sidewall surface of the cavity. An external fluid enters the cavity through the tangential nozzle along a tangential direction of the cavity. A suction hole is disposed on the closed end face. The suction hole is connected to a suction unit. The suction unit sucks the fluid in the cavity through the suction hole. The suction device can suck a workpiece by using both a rotational flow negative pressure and a negative suction pressure of a fluid in the cavity, and therefore can suppress impact of a workpiece surface on a suction force and generate a larger suction force.