At present, most of the China fasteners company connections for vehicles use ordinary hexagonal bolts, hexagonal nuts, spring washers and other fasteners for connection. In order to let everyone know more about the connection of bolts and nuts for automotive fasteners, let’s share the anti-loosening situation of ordinary fasteners, bolts and nuts, failure analysis of ordinary fasteners, bolts and nuts, and automotive applications. Comparison of several locknuts. 1.
Anti-loosening of ordinary fasteners, bolts and nuts. Bolt anti-loosing structure types mainly include: hexagonal flange bolts, which increase the contact area; hexagonal flange bearing surface bolts with teeth, increase the contact area and increase the friction coefficient ; Hexagon head bolts with holes in the head and hexagon head butterfly rod bolts with holes are mechanically locked by steel wire after assembly; the nut anti-loosing structure types mainly include: hexagonal flange nuts to increase the contact area; non-metallic inserts hexagonal locking Nuts, non-metallic inserts,
hexagonal flanged lock nuts are prevented from loosening through inserts; all-metal hexagonal lock nuts, all-metallic hexagonal flanged lock nuts increase effective torque through the head flange; hexagonal slotted nuts adopt openings The mechanical stop of the pin. The main types of gasket anti-loosening structure are: stop back and increase elasticity, including spring washers, conical elastic washers, external serrated lock washers and so on.
Anti-loosening measures such as screw thread gluing and mechanical locking, such as bolts with holes and iron wires, and cleat locking, are also commonly used in construction. 2. Failure analysis of ordinary fasteners, bolts and nuts. The frame is the carrier of various parts of the car. Each part is directly or indirectly fastened to the frame. As a sports equipment, the car is subjected to load and road force, and the frame is deformed. ,
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