Calculate the torque universal coupling

Author: Foshan Electrical and Mechanical center

Tc = TKnKhK Ka≤Tn (N • m)

When alternating load: Tc≤Tf (N • m)

Where Tn-- universal coupling nominal torque, N • m, (it is to calculate the theoretical value under the given conditions, that is the coupling speed, n≈10r / min. Bearing life Ln = 5000h, axis angle = 3 °, when steady load value);

Tf-- universal coupling fatigue torque, N • m

Theoretical torque T-- universal coupling, N • m

T = 9550

Pw-- driving power, kw

N-- universal coupling rotational speed, r / min

Kn-- universal coupling of the rotational speed correction factor,

Bearing life universal coupling correction factor Kh--

K - universal coupling of two axis angle correction factor

Ka-- load correction factor. Load evenly, when steady work, Ka = 1.0; uneven load, when moderate impact, Ka = 1.1 ~ 1.3; when a larger impact load and frequent reversing, Ka = 1.3 ~ 1.5, large shock loads and frequent reversing When Ka> 1.5.

For high speed, Angular large or exceeds a predetermined length of the universal joint, in addition to the above calculation at its rotation flexibility must also be checking rotation flexibility represented by n, under normal circumstances: n> 18000.

Where - universal coupling axis angle, (°); n-- universal coupling of the rotational speed, r / min.