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why is the screw cap made into a regular hexagon

Jul 03, 2018

People who have learned mechanical principles generally know that bolts and nuts (commonly known as screw caps) are connected by a spiral between them. Through the spiral, the helical motion of the nut becomes a linear motion along the axis of the bolt. The fastening and removal of the coupling is achieved by tightening and loosening the screw.


If we show their spirals, the fit between them is actually equivalent to the fit of the object to the bevel. The reason why objects are placed on the inclined surface is not related to their material (that is, friction) and the angle of the slope. There is a friction angle between the object and the inclined surface. As long as the angle of the inclined surface is smaller than the friction angle between the object and the inclined surface, the object will not slide off the inclined surface. This is how the nut does not loosen automatically after the nut is tightened. It is the spiral similar to the bevel, so it is very labor-saving, and a small force in the spiral direction can get a large force in the axial direction of the bolt, that is, the workpiece can be tightly coupled.


And why is the screw cap made into a regular hexagon? Because the honeycomb is a structure that combines growth and expansion. The expansion of the honeycomb is the most delicate, can withstand huge external pressure, and share and accept to offset. The bees are centered on the queen bee, clockwise around the establishment of numerous closely integrated honeycombs. When the worker bees are building their nests, they will complete each room side by side, and the walls of each room are shared with the neighboring rooms, so the most material-saving material will not be too heavy, and its shape will naturally form under the influence of gravity. The hexagonal shape achieves the most material and sturdy construction of the building.


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