Robot castor how to identify structure and quality

Castor can be called a directional casters and universal casters. Directional casters with single wheel on a support, can only move along a straight line. Universal caster wheel is made up of 360 degrees to stent with single wheel, can freely move in any direction. Robot castor mounting height: refers to from the ground to the vertical distance between equipment installation position, the installation of the castor height refers to remote the largest vertical distance and castor base plate and the wheel. Stand to center distance: refers to the vertical line to the center of the wheel core center rivet horizontal distance. Turning radius: refers to the center of rivet vertical line to the outside of the tire on the edge of the horizontal distance, proper spacing of the caster wheel can be turned 360 degrees. The turning radius is reasonable or not directly affects the service life of the castor. To: hard, narrow wheel than soft, wide wheels turn more easily. Rotate wheel radius is one of the important parameters, short turning radius increases to the difficulty, too much will cause the wheels wobble and shorten the life. Driving flexibility: factors affecting driving castor flexibility with stents of the structure and the selection of steel, the size of the wheel, wheel type, bearing, wheel driving the greater flexibility, the better, hard on the smooth ground, narrow wheel than flat soft wheels and effort, but on the uneven ground soft wheels and effort, but on the uneven ground soft wheels can better protect equipment and avoid vibration. Driving load: castor moving load bearing capacity is also called dynamic load, dynamic load of the castor is different due to the test in a different way of the factory, the material of the wheel will have different and different, the key is to support the structure and quality can impact and shock resistance. Impact load: when the equipment has fundamental impact or vibration castor instantaneous load bearing capacity. Static load: castor can bear the weight of the under stationary state. Static load generally should exercise load ( Dynamic load) 5 ~ 6 times, static load should be at least 2 times the impact load. How to distinguish the quality of castor: 1, from the perspective of the stent appearance of caster, caster wheel of the surface of the steel bracket and beautiful, no burr, thickness must be uniform, thus ensuring the quality of load; 2, the framework of the castor galvanized: stents to prevent rust, common use galvanized process, check the caster wheel brackets should be galvanized uniform luster; 3, caster stents welding: steel plate welding should be smooth, there should be no leakage welding, funnelled, etc. ; The size of the 4 wheels, casters commonly used; 5, check the appearance of the castor: smooth surface, no dent, uniform color, no obvious color difference; 6, check the universal wheel overall effect: the roof rotates, every ball should can be, and the surface of the steel plate through contact force should be homogeneous, flexible rotation, no obvious pause phenomenon. 7, check castor use bearing quality: castor turns should not have obvious jump phenomena