GUARDING DEVICE FOR UNIVERSAL JOINT OF TRANSMISSION SHAFT OF VEHICLE

摘要

FIELD: transport mechanical engineering. SUBSTANCE: guarding casing 4 and jacket 3 are mounted on shaft 1 by way of tightening yoke 2. The inner side of jacket 3 is provided with longitudinal grooves 6 that forms axial air passages 7 together with the surface of shaft 1 and at least one radial air passage 17 connected with the atmosphere through openings 20 in the yoke. Passages 17 are in communication with the inner space of the jacket. Radial air passage 17 is formed between end face step 18 of jacket 3 and outer end face surface 19 of guarding casing 4. The inner side of the casing is provided with longitudinal grooves 13 that form additional axial air passages 12 interconnected with additional radial passage 9 formed between end face surface 10 of the jacket and inner end face surface 11 of the guarding casing. Ring member 16 that is not penetrable for moisture but permits circulation of air is mounted inside space 16. EFFECT: enhanced reliability. 4 cl, 7 dwg