TOOTHED CHAIN, CHAIN DRIVE AND TOOTHED CHAIN SET HAVING AN OPTIMIZED CHAIN JOINT AND INCREASED EXTERNAL FLANK ANGLE

摘要

The present invention, alternating inner and outer chain links joined by chain joint (4) (2 and 3) relates to a saw-tooth chain (1) with the inner chain link (3) is provided with at least one inner plate (7) and at least two joint extending vertically through it, the bush (10), and the The outer chain link (2) is provided with at least two outer plates (5) and extending vertically through it, at least two joint pins (6). To form a chain joint, a joint pin of the outer chain link (5), each extending through a joint bush of the inner chain link, at least one inner plate of the inner chain link (7) and / or the outer chain link of at least one of the outer plate is implemented as a toothed plate with each two teeth formed in the outer flanks and the inner flanks. According to the invention, and to improved information about the service and the entire chain drive design improvements that can be achieved, provided the external flank angle of the tooth flanks of two outer plates (5, 7) is less than 65 75 , The outer diameter of the pitch T and the joint pin of the sawtooth chain (1) d _Ba ratio of V _{The Ba} is less than 2.65.