Abstract Bolts are widely used in transmission lines and key connecting parts of lines. Transmission have been affected by the natural environment for a long time, bolts prone to frequent vibration leading loosening or falling off. Bolt endangers safe stable operation This paper analyses mechanism line screw connection, carries out transverse contrast test common bolt anti-loosening measures, d...

Traditional hydraulic drive experiments present a number of challenges. During the transmission experiment, equipment is easily damaged and must be frequently updated, which makes it difficult for large students to study at same time; traditional offline, monotonous, boring make increase their interest in learning from what inherent; most undergraduate have home due impact COVID-19. Therefore, ...