Ensuring the reliability of threaded connections on modern automotive vehicles

When forcing engines, loads on parts of components and assemblies of automotive vehicles, but especially on parts of ICE itself, which are subject to gas, inertial and thermal loads increase. In this regard, serious requirements are made for threaded joints of machines - to exclude self-loosening of joints during operation and thereby regular monitoring of the condition of the threads and the need to tighten them during maintenance up to overhaul. The article discusses methods for improving the reliability of threaded joints: changing the shape and geometry of threaded elements, the use of gels and adhesives in threaded joints during their installation, the use of crimp bolts when assembling vehicle frames and the introduction of a method of tightening bolts in several stages in terms of torque and angle of rotation. An assessment of their effectiveness in operation was made.

maintenance, reduced labor intensity, reliability of threaded connections, bolts with corrugations and notches