时间：2013-08-01 17:59　作者：admin　点击： 次

　　The choice of universal coupling mainly considers the speed of the required transmission shaft, the size of the load, the installation accuracy of the two connected parts, the stability of rotation, the price, etc., refer to the characteristics of various couplings, choose one Suitable coupling type.
　　The following points can be considered when making specific choices:
　　1.Due to reasons such as manufacturing, installation, load deformation and temperature changes, it is difficult to maintain strict and precise alignment of the two shafts after installation and adjustment.There is a certain degree of displacement in the x and Y directions and the deflection angle CI.When the radial displacement is large, you can choose a slider coupling, and when the angular displacement is large or the connection of two intersecting shafts, you can choose a universal coupling.When the two shafts produce a large additional relative displacement during the working process, a flexible coupling should be used.
　　2.The working speed of the coupling and the centrifugal force caused by it.For high-speed transmission shafts, couplings with high balance accuracy, such as diaphragm couplings, should be used instead of eccentric slider couplings.

　　3.The size and nature of the torque to be transmitted and the requirements for the function of damping vibration.For example, for high-power heavy-duty transmission, gear couplings can be used.For severe impact loads or transmissions requiring the elimination of shaft torsional vibration, tire couplings can be used.
Basic parameters and main dimensions of D type cross shaft universal coupling 

model	Rotation diameter D	Nominal torque Tn /Nm	Fatigue torque Tf kN.m	Axis angle β	Size			Moment of inertia I kg·m2		Mass G kg
					Lmin	D3	L1	Lmin	Every 100mm	Lmin	Every 100mm
SWP160D	160	16	8	≤10	430	114	85	0.09	0.0059	35	2.1
SWP180D	180	20	10	≤10	474	121	95	0.16	0.0072	47	2.3
SWP200D	200	31.5	16	≤10	544	127	110	0.23	0.0114	67	3.4
SWP225D	225	40	20	≤10	636	152	130	0.53	0.0290	94	6.6
SWP250D	250	63	31.5	≤10	690	168	135	0.91	0.0407	140	7.3
SWP285D	285	90	45	≤10	760	194	150	1.91	0.0702	206	9.4
SWP315D	315	140	63	≤10	860	219	170	3.39	0.1144	271	12.0
SWP350D	350	180	90	≤10	940	245	185	5.35	0.1663	355	13.0
SWP390D	390	250	112	≤10	1060	273	205	10.54	0.2695	501	18.0
SWP435D	435	355	160	≤10	1180	299	235	18.56	0.3645	325	20.0
SWP480D	480	450	224	≤10	1360	351	265	31.69	0.7028	1144	28.0
SWP550D	550	710	315	≤10	1460	402	290	51.45	1.1842	1589	35.7
SWP600D	600	1000	500	≤10	1840	450	360	83.53	1.7159	2243	40.5
SWP640D	640	1250	630	≤10	1980	480	385	135.60	2.3080	3140	48.3