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JMIJ to intermediate shaft diaphragm coupling

Before installing the JMIJ to the intermediate shaft diaphragm coupling, check whether the prime mover and the working machine are concentric, whether there are wrapping paper and scratches on the surfaces of the two shafts, and whether there is debris in the inner holes of the two half couplings of the coupling. , Whether there are bruises on the edge of the inner hole, if any, the shaft and half coupling should be cleaned up, and the bruises should be treated with a fine file.

JMIJ to intermediate shaft diaphragm coupling
  Before installing the JMIJ to the intermediate shaft diaphragm coupling, check whether the prime mover and the working machine are concentric, whether there are wrapping paper and scratches on the surfaces of the two shafts, and whether there is debris in the inner holes of the two half couplings of the coupling. , Whether there are bruises on the edge of the inner hole, if any, the shaft and half coupling should be cleaned up, and the bruises should be treated with a fine file.Then check whether the inner hole diameter and length of the two half couplings are consistent with the diameter and shaft elongation of the prime mover and working machine.In general selection, it is better to let the length of the prime mover and the working machine end half coupling be less than the shaft extension of 10-30mm.In order to facilitate the installation of the JMIJ to the intermediate shaft diaphragm coupling, it is good to put the two half couplings in the 120-150 incubator or oil tank for preheating, so that the inner hole size increases and it is easy to install.
  1. Before installation, check whether the prime mover and working machine shafts are concentric, whether there are wrapping paper and scratches on the surfaces of the two shafts, whether there are sundries in the inner holes of the two half couplings of the coupling, and whether there is any edge of the inner hole. If there are bruises, the shaft and half coupling should be cleaned up, and the bruises should be treated with a fine file.Then check whether the inner hole diameter and length of the two half couplings are consistent with the diameter and shaft elongation of the prime mover and working machine.In general selection, it is better to let the length of the prime mover and the working machine end half coupling be less than the shaft extension of 10-30mm.
  2. In order to facilitate the installation, it is better to put the two half couplings in the 120-150 incubator or oil tank for preheating, so that the inner hole size increases and it is easy to install.After installation, ensure that the shaft head cannot protrude from the end face of the half coupling, and it is better to be flush.Detect the distance between the two halves of the coupling: take the average of the readings of 3 to 4 points measured along the two inner sides of the flange of the half coupling, and the sum of the measured dimensions of the extension and the two diaphragm sets, two The error is controlled within the range of 0-0.4mm.
  3. Alignment: Use a dial indicator to detect the runout of the flange end face and outer circle of the two halves of the coupling flange. When the outer circle of the flange is less than 250mm, the runout value should not be greater than 0.05mm; when the outer circle of the flange is greater than 250mm , The runout value should not be greater than 0.08. High-speed, high-torque shafting transmission.As well as the shaft transmission of various mechanical devices with little change in load, it is extremely versatile.
The basic parameters and main dimensions of the JMIJ intermediate shaft diaphragm coupling mm (JB/T 9147-1999)

model Nominal torque
Tn /Nm
Instantaneous high 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

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