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Diaphragm coupling

jmj type double diaphragm coupling

Time: 2018-11-15 15:04 Author: admin Click:

The JMJ type diaphragm coupling consists of several groups of diaphragms (stainless steel thin plates) which are interlacedly connected with the two halves of the coupling with bolts. Each group of diaphragms is made up of several pieces. The diaphragms are divided into connecting rods and different shapes. The whole piece.The diaphragm coupling relies on the elastic deformation of the diaphragm to compensate for the relative displacement of the two shafts connected. It is a high-performance flexible coupling with strong metal components. It does not require lubrication, and has a compact structure, high strength and long service life. , There is no rotation gap, not affected by temperature and oil pollution, and has the characteristics of acid resistance, alkali resistance and corrosion resistance. The diaphragm coupling is suitable for shafting transmission in high temperature, high speed, and corrosive medium conditions.

The diaphragm coupling is composed of at least one diaphragm and two shaft sleeves.The diaphragm is fastened to the sleeve with a pin and generally will not loosen or cause backlash between the diaphragm and the sleeve.Some manufacturers provide two diaphragms, and some provide three diaphragms, with one or two rigid elements in the middle, and the two sides are connected to the shaft sleeve.The difference between the single diaphragm coupling and the double diaphragm coupling is the ability to handle various deviations. In view of the complex bending of the diaphragm, the single diaphragm coupling is not suitable for eccentricity.The double diaphragm coupling can bend in different directions at the same time to compensate for eccentricity.

Diaphragm couplings are widely used in shaft transmission of various mechanical devices, such as water pumps (especially high-power, chemical pumps), fans, compressors, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, mining Machinery, metallurgical machinery, aviation (helicopter), naval high-speed power transmission systems, steam turbines, piston-type power mechanical transmission systems, crawler vehicles, and generator sets high-speed, high-power mechanical transmission systems, which are applied to high-speed transmission after dynamic balance Shafting has become more common.

Dimensions and parameters of JMJ type double diaphragm coupling (JMJ type is JMIIJ type, JB/T9147-1999)

model	Nominal Torque T_n /Nm	Momentary torque T_Max /(Nm)	Rotating speed n_Max /(r/min)	Diameter of shaft hole d,d₁/ mm	Length of shaft hole mm			D / Mm	D₁ / Mm	D₂ / Mm	L₁ Min / Mm	t / Mm	Weight m/kg		Moment of inertiaI/kg.m²
					J₁型	Y type	L recommend						L₁ min 质量	Every additional 1m of mass
					L	L
JMJ1	63	100	9300	20,22,24	38	52	40	92	53	45	70	8±0.2	2	4.1	0.002
				25,28	44	62
				30,32,35,38	60	82
JMJ2	100	200	8400	25,28	44	62	45	102	63		80		2.9		0.003
				30,32,35,38	60	82
				40,42,45	84	112
JMJ3	250	400	6700	30,32,35,38	60	82	55	128	77	76	96	11±0.3	5.7	8	0.009
				40,42,45,48,50,55	84	112
JMJ4	500	800	5900	35,38	60	82	65	145	91		116		8.5		0.017
				40,42,45,48,50,55,56	84	112
				60,63,65	107	142
JMJ5	800	1250	5100	40,42,45,48,50,55,56	84	112	75	168	105	102	136	14±0.3	12.5	12	0.034
				60,63,65,70,71,75	107	142
JMJ6	1250	2000	4750	45,48,50,55,56	84	112	80	180	112		140	15±0.4	16.5		0.053
				60,63,65,70,71,75	107	142
				80	132	172
JMJ7	2000	3150	4300	50,55,56	84	112		200	120	114			21	19	0.082
				60,63,65,70,71,75	107	142
				80,85	132	172
JMJ8	2500	4000	4200	55,56	84	112		205	120			20±0.4	23		0.092
				60,63,65,70,71,75	107	142
				80,85	132	172
JMJ9	3150	5000	4000	55,56	84	112	90	215	128	127	160		27	21	0.117
				60,63,65,70,71,75	107	142
				80,85,90	132	172
JMJ10	4000	6300	3650	60,63,65,70,71,75	107	142	100	235	132		170	23±0.5	36		0.191
				80,85,90,95	132	172
JMJ11	5000	8000	3400	60,63,65,70,71,75	107	142		250	145	140			42	26	0.252
				80,85,90,95	132	172
				100	167	212
JMJ12	6300	10000	3200	60,63,65,70,71,75	107	142	110	270	155		190		50		0.349
				80,85,90,95	132	172
				100,110	167	212

JMJ13	8000	12500	2850	65,70,71,75	107	142	115	300	162	165	200	27±0.6	66	47	0.56
				80,85,90,95	132	172
				100,110	167	212
JMJ14	10000	16000	2700	70,71,75	107	142	125	320	176		220		78		0.75
				80,85,90,95	132	172
				100,110,120,125	167	212
JMJ15	12500	20000	2450	75	107	142	140	350	186		240	32±0.7	110	51	1.26
				80,85,90,95	132	172
				100,110,120,125	167	212
				130	202	252
JMJ16	16000	25000	2300	80,85,90,95	132	172	145	370	203	219	250		125	72	1.63
				100,110,120,125	167	212
				130,140	202	252
JMJ17	20000	31500	2150	90,95	132	172	165	400	230		290		160		2.45
				100,110,120,125	167	212
				130,140,150	202	252
				160	242	302
JMJ18	25000	40000	1950	100,110,120,125	167	212	175	440	245		300	38±0.9	220		3.99
				130,140,150	202	252
				160,170	242	302
JMJ19	31500	50000	1850	100,110,120,125	167	212	185	460	260	267	320		245	89	4.98
				130,140,150	202	252
				160,170,180	242	302
JMJ20	35500	56000	1800	120,125	167	212	200	480	280		350		275		6.28
				130,140,150	202	252
				160,170,180	242	302
				190,200	282	352
JMJ21	40000	63000	1700	120, 125	167	212	210	500	295	267	370	38±0.9	320	89	7.68
				130,140,150	202	252
				160,170,180	242	302
				190,200	282	352
JMJ22	50000	80000	1600	140,150	202	252	220	540	310	299	380	44±1	400	110	11.6
				160,170,180	242	302
				190,200,220	282	352
JMJ23	63000	100000	1450	140,150	202	252	240	600	335	356	410	50±1.3	560	145	19.8
				160,170,180	242	302
				190,200,220	282	352
				240	330	410
JMJ24	80000	125000	1400	160,170,180	242	302	255	620	350		440		620		23.6
				190,200,220	282	352
				240,250	330	410
JMJ25	90000	140000	1300	180	242	302	275	660	385		480		740		31.9
				190,200,220	282	352
				240,250,260	330	410
				280	380	470
JMJ26	112000	180000	1200	180	242	302	295	720	410	406	510	60±1.4	970	190	50.4
				190,200,220	282	352
				240,250,260	330	410
				280,300	380	470
JMJ27	140000	200000	1150	220	282	352	300	740	420		520		1050		57
				240,250,260	330	410
				280,300	380	470
JMJ28	160000	224000	1100	240,250,260	330	410	320	770	450	457	560		1200	215	69.4
				280,300	380	470
JMJ29	180000	280000	1050	250,260	330	410	350	820	490		600		1400		95.5
				280,300,320	380	470
				340	450	550
JMJ30	280000	450000	1000	280,300,320	380	470		875	480	559	620	50±1.6		235	96.5
				340,360	450	550			550						109.5
JMJ31	400000	630000	930	300,320	380	470		935	520	610	630	60±1.0	1800	290	142
				340,360,380	450	550			560						152
				400	540	650			600						162
JMJ32	450000	710000	880	320	380	470	380	1030	480	622	690		2250	330	194
				340,360,380	450	550			600						224
				400,420	540	650			640						240

JMJ33	560000	900000	820	360,380	450	550	400	1080	580	660	726	66±2.2	2750	390	271
				400,420,440,450,460	540	650			700						325
JMJ34	1000000	1600000	740	400,420,440,450			460	1160	620	750	836	70±2.3	3500	450	387
				460,480,500					750						465
JMJ35	1400000	2240000	680	440,450,460,480,500			520	1290	790	820	946	82±2.6	5000	570	750
				530,560	680	800			840						810
JMJ36	2000000	3150000	620	480,500	540	650	570	1410	760	900	1040	92±2.8	6600	710	1050
				530,560,600	680	800			920						1290
JMJ37	2800000	4000000	570	450,460,480,500	540	650	610	1530	810	1000	1100	105±3	8400	880	1630
				530,560,600,630	680	800			980						1950
JMJ38	4000000	6000000	520	560,600,630			670	1670	950	1100	1210	105±3.4	11000	1050	2670
				670,710	780	--			1070						3030
JMJ39	5000000	8000000	480	600,630	680	800	730	1830	970	1200	1320	125±3.7	14500	1350	4066
				670,710,750	780	--			1070
JMJ40	6300000	10000000	430	670,710,750	780		800	2000	1140	1300	1450	130±4	19000	1600	6600
				800,850	880				1290						7500
JMJ41	8000000	12500000	400	750	780			2200	1260	1400	1600	140±4.4	25000	1850	10400
				800,850	880				1420						11900
JMJ42	10000000	16000000	350	800,850			960	2400	1370	1500	1760		32000	2100	15200
				900,950	980				1550						17400

Remarks: The shaft hole and keyway form comply with the regulations of GB/T3852.

Please optimize the length of the shaft holeL_recommend_.

Mass and transmission inertia are based onL_recommendCalculate the approximate value.

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