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Calculated torque of the universal joint
Optional calculation
Calculated torque of universal joint:
Tcu003dTKnKhK Ka≤Tn(N m)
alternating load When: Tc≤Tf (N m)
where Tn——the nominal torque of the universal joint, N m, (it is the theoretical calculation value under the given conditions, namely Coupling speed, n≈10r/min. Bearing life Lnu003d5000h, axis bending angleu003d3°, the value when the load is stable);
Tf——the fatigue torque of the universal coupling, N m
T——theoretical torque of the universal coupling, N m; where Tu003d9550Pw/N (N m)
Pw——driving power , kw
N——the rotational speed of the universal joint, r/min
Kn——the rotational speed correction coefficient of the universal joint,
Kh ——The bearing life correction coefficient of the universal joint
K ——The two-axis bending angle correction coefficient of the universal joint
Ka——The load correction coefficient. When the load is uniform and the work is stable, Kau003d1.0; when the load is uneven, when the impact is moderate, Kau003d1.1～1.3; when the impact load is large and frequent forward and reverse rotation, Kau003d1.3～1.5, when the impact load is large and frequent forward and reverse rotation, Kau003d1.5 When Ka>1.5.
For universal couplings with high rotational speed, large folding angle or their length exceeding the specified requirements, in addition to the above calculation, its rotational flexibility must also be checked, and the rotational flexibility is represented by n. Generally speaking: n >18000.
In the formula ——the axis bending angle of the universal joint, (°); n——the rotational speed of the universal joint, r/min.
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