MPJ type diaphragm coupling with intermediate shaft type (Q/YP 21002X-2018)

Overview
The MPJ type diaphragm coupling with intermediate shaft type is a high-performance mechanical component designed to connect two shafts in a power transmission system, ensuring the transfer of torque while accommodating misalignment between the shafts. This coupling type is particularly useful in applications requiring long-distance shaft connections and offers several advantages, including high torsional rigidity, low maintenance, and the ability to handle high rotational speeds.

Design and Construction
1. Diaphragm Elements:
The core feature of the MPJ type coupling is its diaphragm elements. These are thin, flexible metal plates that allow for slight bending and axial movement while maintaining a high degree of torsional rigidity. The diaphragms are designed to handle misalignments such as angular, axial, and parallel misalignments.
2. Intermediate Shaft:
The inclusion of an intermediate shaft allows the coupling to span larger distances between the connected machinery. This intermediate shaft is typically made from high-strength materials to ensure durability and reliability under various operating conditions.
3. Hub and Flanges:
The coupling consists of hubs that attach to the respective shafts and flanges that secure the diaphragms in place. These components are precision-engineered to ensure a secure fit and optimal performance.
4. Bolts and Fasteners:
High-strength bolts and fasteners are used to assemble the diaphragm to the hubs and flanges, ensuring a robust and reliable connection capable of withstanding high levels of torque and rotational speed.

Key Features
1. Torsional Rigidity:
The MPJ type diaphragm coupling provides excellent torsional rigidity, making it ideal for applications where precise torque transmission is critical.
2. Misalignment Accommodation:
This coupling type effectively handles various types of misalignment, including angular, parallel, and axial displacement, without compromising performance.
3. Low Maintenance:
The design of the diaphragm coupling minimizes wear and tear, reducing the need for frequent maintenance and increasing the overall lifespan of the coupling.
4. High-Speed Capability:
The robust construction and precision engineering of the MPJ type diaphragm coupling make it suitable for high-speed applications, ensuring stable and reliable operation.
5. Corrosion Resistance:
Materials used in the construction of the coupling, such as stainless steel for diaphragms, provide excellent resistance to corrosion, making it suitable for use in harsh environments.

Applications

The MPJ type diaphragm coupling with intermediate shaft is used in various industries and applications, including:

Power Generation: Connecting turbines and generators.
Marine Engineering: Propulsion systems in ships and submarines.
Aerospace: Transmitting power in aircraft systems.
Industrial Machinery: High-speed compressors, pumps, and fans.
Oil and Gas: Drilling rigs and processing equipment.

Installation and Maintenance

Alignment Check:
Before installation, it is crucial to ensure that the shafts are as aligned as possible to minimize stress on the coupling components.
Torque Tightening:
Proper torque tightening of bolts is necessary to maintain the integrity of the coupling assembly. Follow manufacturer specifications for torque settings.
Regular Inspections:
Periodic inspections should be conducted to check for any signs of wear or damage to the diaphragms and other components. Replace any worn parts as needed.
Lubrication:
Generally, the MPJ type diaphragm coupling does not require lubrication, which simplifies maintenance routines.

Conclusion
The MPJ type diaphragm coupling with intermediate shaft type is a versatile and reliable solution for long-distance shaft connections in high-performance applications. Its ability to handle misalignment, combined with its torsional rigidity and low maintenance requirements, makes it an excellent choice for a wide range of industrial and engineering applications.

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Product Parameters

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TECHNICAL PARAMETERS

Basic parameters and main dimensions of MPJ diaphragm coupling with the intermediate shaft

Type	Nominal torque /N·m	Allowable speed [n]/r.min⁻¹	Shaft hole diameter d₁,d₂	Shaft hole length			D	D₁	L₁_min	t	Mass m/kg		Inertia I/kg·m²
				J₁	Y	L Recom					L₁min Mass	Mass for added 1m
				L	L
MPJ1	63	9300	20,22,24	38	52	40	92	53	70	8±0.2	2	4.1	0.002
			25,28	44	62
			30,32,35,38	60	82
MPJ2	100	8400	25,28	44	62	45	102	63	80		2.9		0.003
			30,32,35,38	60	82
			40,42,45	84	112
MPJ3	250	6700	30,32,35,38	60	82	55	128	77	96	11±0.3	5.7	8	0.009
			40,42,45,48,50,55	84	112
MPJ4	500	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
MPJ5	800	5100	40,42,45,48,50,55,56	84	112	75	168	105	136	14±0.3	12.5	12	0.034
			60,63,65,70,71,75	107	142
MPJ6	1250	4750	45,48,50,55,56	84	112	80	180	112	140	15±0.2	16.5		0.053
			60,63,65,70,71,75	107	142
			80	132	172
MPJ7	2000	4300	50,55,56	84	112		200	120			21	19	0.082
			60,63,65,70,71,75	107	142
			80,85	132	172
MPJ8	2500	4200	55,56	84	112		205			20±0.4	23		0.092
			60,63,65,70,71,75	107	142
			80,85	132	172
MPJ9	3150	4000	55,56	84	112	90	215	128	160		27	21	0.117
			60,63,65,70,71,75	107	142
			80,85,90	132	172
MPJ10	4000	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
MPJ11	5000	3400	60,63,65,70,71,75	107	142	100	250	145	170	23±0.5	42	26	0.252
			80,85,90,95	132	172
			100	167	212
MPJ12	6300	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
MPJ13	12500	2850	65,70,71,75	107	142	115	300	162	200	27±0.6	66	47	0.56
			80,85,90,95	132	172
			100,110	167	212
MPJ14	16000	2700	70,71,75	107	142	125	320	176	220		78	47	0.75
			80,85,90,95	132	172
			100,110,120,125	167	212
MPJ15	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
			130,140	202	252
MPJ16	25000	2300	80,85,90,95	132	172	145	370	203	250		125	72	1.63
			100,110,120,125	167	212
			130,140	202	252
MPJ17	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
MPJ18	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
MPJ19	45000	1850	110,120,125	167	212	185	460	260	320		245	89	4.98
			130,140,150	202	252
			160,170,180	242	302
MPJ20	50000	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
MPJ21	56000	1700	130,140,150	202	252	210	500	295	370		320		7.68
			160,170,180	242	302
			190,200	282	352
MPJ22	63000	1600	140,150	202	252	220	540	310	380	44±1	400	110	11.6
			160,170,180	242	302
			190,200,220	282	352
MPJ23	80000	1450	150	202	252	240	600	335	410	50±1.2	560	145	19.8
			160,170,180	242	302
			190,200,220	282	352
			240	330	410
MPJ24	100000	1400	160,170,180	242	302	255	620	350	440		620		23.6
			190,200,220	282	352
			240,250	330	410
MPJ25	125000	1300	180	242	302	275	660	385	480		740		31.9
			190,200,220	282	352
			240,250,260	330	410
MPJ26	160000	1200	190,200,220	282	352	295	720	410	510	60±1.4	970	190	50.4
			240,250,260	330	410
			280	380	470
MPJ27	200000	1150	220	282	352	300	740	420	520		1050		57
			240,250,260	330	410
			280,300	380	470
MPJ28	250000	1100	240,250,260	330	410	320	770	450	560		1200	215	69.4
			280,300,320	380	470
MPJ29	315000	1050	250,260	330	410	350	820	490	620		1400		95.5
			280,300,320	380	470
			340	450	550
MPJ30	500000	1000	280,300,320	380	470	350	875	480	600	50±1.6		235	96.5
			340,360	450	550			550					109.5
MPJ31	630000	930	300,320	380	470	350	935	520	630	60±1.9	1800	290	142
			340,360,380	450	550			560					152
			400	540	650			600					162
MPJ32	800000	880	320	380	470	380	1030	480	690		2250	330	194
			340,360,380	450	550			600					224
			400,420	540	650			640					240
MPJ33	1000000	820	360,380	450	550	400	1080	580	726	66±2.2	2750	390	271
			400,420,440,450,460	540	650			700					325
MPJ34	1250000	740	400,420,440,450			460	1160	620	836	70±2.3	3500	450	387
			460,480,500					750					465
MPJ35	1600000	680	440,450,460,480,500			520	1290	790	946	82±2.6	5000	570	750
			530,560	680	800			840					810
MPJ36	2000000	620	480,500	540	650	570	1410	760	1040	92±2.8	6600	710	1050
			530,560,600	680	800			920					1290
MPJ37	2800000	570	450,460,480,500	540	650	610	1530	810	1100	105±3	8400	880	1630
			530,560,600,630	680	800			980					1950
MPJ38	4000000	520	560,600,630	680	800	670	1670	950	1210	115±3.4	11000	1050	2670
			670,710	780	-			1070					3030
MPJ39	5000000	480	600,630	680	800	730	1830	970	1320	125±3.7	14500	1350	4060
			670,710,750	780	-			1170					4800
MPJ40	6300000	430	670,710,750	780	-	800	2000	1140	1450	130±4	19000	1600	6600
			800,850	880				1290					7500
MPJ41	8000000	400	750	780			2200	1260	1600	140±4.4	25000	1850	10400
			800,850	880				1420					11900
MPJ42	10000000	350	800,850			960	2400	1370	1760		32000	2100	15200
			900,950	980				1550					17400

Note:

1. L recommendation is preferred.

2. Approximate values of mass and moment of inertia are calculated according to L recommendation.

Zhongye Heavy Industry Technology (Zhenjiang) Co., Ltd.

Zhongye Heavy Industry Technology (Zhenjiang) Co., Ltd. is located in a well-known ancient city, Zhenjiang. We are an enterprise integrating R & D, manufacturing, and sales. Our products are widely used in metallurgical equipment, mining equipment, water equipment, lifting equipment, paper equipment, port equipment and other industries.
Our main products are toothed coupling, elastic sleeve column pin coupling, elastic column pin coupling, gear coupling with elastic pin, a universal coupling, tire coupling, jaw coupling, star coupling, diaphragm coupling, drum coupling and grid coupling, the Oldham coupling, flange coupling, clip shell coupling, GL type roller chain coupling and a safety coupling, and so on. Our company also undertakes a variety of non - standard coupling designs and manufacturing.
New workshop covers an area of about 16463.52 m². heavy workshop 5,500 M2, Precision workshop 4,600 m² , office building and the gymnasium 2000 M2, Dinning hall 500m² , Warehouse 1000 m², Roads, greening, parking areas 3563 M2.

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Products Series: Flexible Couplings with Non-Elastic Elements; Flexible Couplings with Metal Elastic Elements; Flexible Couplings with Non-Metallic Elastic Elements; Safety Coupling; Rigid Coupling

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