JMIJ type diaphragm coupling (JB/T 9147-1999)
●The diaphragm coupling is composed of several groups of diaphragms (stainless steel thin plate) which are alternately connected with two halves of the coupling with bolts. Each group of diaphragms is made up of several pieces. The diaphragms are divided into rod type 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 metal elastic elements. It does not require lubrication, has a compact structure, high strength and long service life. No rotation gap, not affected by temperature and oil pollution, with acid resistance, alkali resistance, and corrosion resistance. It is suitable for shafting transmission in high temperature, high speed, and corrosive medium working conditions. It is widely used for shafting 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), high-speed power transmission of ships The system, after being dynamically balanced, is commonly used in high-speed transmission shafts.
● Compared with the gear coupling, the diaphragm coupling has no relative sliding, no lubrication, sealing, no noise, basically no maintenance, more convenient to manufacture, and can partially replace the gear coupling.Diaphragm couplings have been widely used in developed countries in the world. In practical applications, the intermediate shaft type is generally used to improve the performance of two-axis offset compensation.
JMIJ type diaphragm couplingBasic parameters and main dimensions mm(JB/T 9147-1999)
Model |
Nominal torque
Tn /Nm |
Momentary maximum torque Tmax
/Nm |
Permissible speed
[n]
/r.min -1
|
Diameter of shaft hole d(H 7)
|
Shaft hole shaft hole shaft hole shaft hole |
D |
t |
L2 |
Moment of inertia I/kg.m 2 ≈ |
Mass m/kg ≈ |
Y type |
J, J1, Z, Z1 type |
L recommended |
L |
L |
L1 |
JMIJ1 |
25 |
80 |
6000 |
14 |
32 |
- |
J1 type is 27 Z1 type is 20 |
35 |
90 |
8.8 |
100 |
0.0013 |
1.8 |
16, 18, 19 |
42 |
30 |
20, 22 |
|
38 |
JMIJ2 |
63 |
180 |
5000 |
18, 19 |
42 |
- |
30 |
45 |
100 |
9.5 |
100 |
0.002 |
2.4 |
20, 22, 24 |
52 |
38 |
25 |
62 |
44 |
JMIJ3 |
100 |
315 |
5000 |
20, 22, 24 |
52 |
- |
38 |
50 |
120 |
11 |
120 |
0.0047 |
4.1 |
25, 28 |
62 |
44 |
30 |
82 |
60 |
JMIJ4 |
160 |
500 |
4500 |
24 |
52 |
- |
38 |
55 |
130 |
12.5 |
120 |
0.0069 |
5.4 |
25, 28 |
62 |
44 |
30, 32, 35 |
82 |
60 |
JMIJ5 |
250 |
710 |
4000 |
28 |
62 |
- |
44 |
60 |
150 |
14 |
140 |
0.0153 |
8.8 |
30-32-35 |
82 |
60 |
40 |
112 |
84 |
JMIJ6 |
400 |
1120 |
3600 |
32, 35, 38 |
82 |
82 |
60 |
65 |
170 |
15.5 |
140 |
0.0281 |
13.4 |
40, 42, 45, 48, 50 |
112 |
- |
84 |
JMIJ7 |
630 |
1800 |
3000 |
40, 42 |
112 |
112 |
84 |
70 |
210 |
19 |
150 |
0.076 |
22.3 |
45, 48, 50, 55, 56 |
|
60 |
142 |
107 |
JMIJ8 |
1000 |
2500 |
2800 |
45, 48 |
112 |
112 |
84 |
80 |
240 |
22.5 |
180 |
0.1602 |
36 |
50, 55, 56 |
|
60-63-65 |
142 |
107 |
JMIJ9 |
1600 |
4000 |
2500 |
55, 56 |
112 |
112 |
84 |
85 |
260 |
24 |
220 |
0.2509 |
48 |
60, 63, 65, 70, 71, 75 |
142 |
|
107 |
80 |
172 |
132 |
JMIJ10 |
2500 |
6300 |
2000 |
63, 65, 70, 71, 75 |
142 |
142 |
107 |
90 |
280 |
17 |
250 |
0.5195 |
85 |
80-85-90 |
172 |
- |
132 |
JMIJ11 |
4000 |
9000 |
1800 |
75 |
142 |
142 |
107 |
95 |
300 |
19.5 |
290 |
0.8223 |
112 |
80-85-90 |
172 |
172 |
132 |
100, 110 |
212 |
- |
167 |
JMIJ12 |
6300 |
12500 |
1600 |
90, 95 |
172 |
|
132 |
120 |
340 |
23 |
300 |
1.4109 |
152 |
100-110-120 |
212 |
167 |
|