Design & Development of Suction based Wall-Climbing System

In the today's scenario, Climbing robots use suction cups for maintaining the stability on vertical wall surfaces. Most of the climbing robot's that uses suction cup employs a remotely located huge suction generator to produce the suction force for adhering to the wall surface. The negative suction force to the suction cups is delivered through lengthy tube that affects the dynamic leveling and steadiness of climbing automaton. In the present research work, the climbing robot uses suction drag principle and includes a suction cup integrated with a suction motor, drive motors and an embedded controller, which might go on smooth vertical wall surfaces. This paper deals with the negative suction pressure to stick on the wall. It conjointly approves regulating the cup's terrible strain by means of continuous feedback. CATIA 3D modeling software is employed to style, simulation of the suction cup. This paper examines its integral numerical examination, hence the wall-climbing robotic system. The volume of suction force and related suction pressure is generated, which is required by the suction cup to work on drag principle. Matlab Simulink model is used to validate the suction motor speed and suction pressure generated with respect to time-period. The experimental results prove that the generated suction pressure within the suction cup machine is to be -6.63 kPa for sticking smoothly on vertical wall surfaces. The self-weight of the suction cup is about 2Kg. The climbing robot can move freely on vertical wall surface by controlling the speed of the suction motor and thereby reducing the pressure to around -3 kPa. This climbing robot can take additional of 5kgs of extra payload for its applications. The drop off suction pressure is found to be-1.82kPa.