Magnetic adsorption force adjusting mechanism of Mecanum wheel spherical tank wall-climbing robot

The utility model relates to a magnetic adsorption force adjusting mechanism of a Mecanum wheel spherical tank wall-climbing robot, and belongs to the field of wall-climbing robots. The magnetic adsorption force adjusting mechanism comprises a side plate, a magnetic seat, a permanent magnet, an elastic unit and a pull rod; the two side plates are used for being fixed to the two sides of a frame. The two magnetic seats are parallel to each other and are positioned between the two side plates; the permanent magnet is mounted in the magnetic seat; the elastic unit is connected between the two magnetic seats; one ends of the two groups of pull rods are connected with the magnetic seat, and the other ends of the two groups of pull rods penetrate out of the side plates; when the elastic unit is in a natural state, the distance between the permanent magnet and the operation object is within the magnetic force range of the permanent magnet; the wall-climbing robot has the effects of adjusting magnetic force and conve