{CLR.Field id="cone" fieldname="Title" /}_Ever-Power Machinery Manufacturing Co., Ltd.

JSB type serpentine spring coupling

JSB type serpentine spring coupling

JSB type serpentine springCouplingIts main structure is composed of two half couplings, two half outer covers, two sealing rings and serpentine springs.
JMI diaphragm couplingMLZ type single flange plum blossom elastic couplingFlexible elastic coupling

  JSB type serpentine springCouplingThe main structure is composed of two half couplings, two half outer covers, two sealing rings and a serpentine spring sheet.It transfers torque by embedding the serpentine spring into the tooth grooves of the two coupling halves, and the coupling uses serpentine springs to be embedded in the tooth grooves of the two coupling halves to realize the link between the driving shaft and the driven shaft.During operation, the driven end is driven to transmit torque by the axial force of the active end tooth facing the snake spring, which largely avoids the occurrence of resonance, and the elastic variable produced by the reed when transmitting the torque. The mechanical system can obtain a better damping effect, with an average damping rate of more than 36.
  Structural features of JSB serpentine spring coupling:
  1. Simple structure, convenient assembly and disassembly.The whole machine has few parts, small size and light weight. The spring leaf designed as a trapezoidal cross-section and the trapezoidal tooth groove are particularly convenient and close, so that the assembly, disassembly and maintenance are simpler than ordinary couplings.
  2. High transmission efficiency and reliable operation.The transmission efficiency of the coupling is determined to be 99.47, and its short-term overload capacity is twice the rated torque, and it is reliable in operation.
  3. Large range of bearing variable load, starting.The tooth surfaces of the two half couplings in contact with the reeds are curved. When the transmission torque increases, the springs will deform along the curved surfaces of the teeth, so that the force points of the two half couplings on the reeds are close.The contact point between the reed and the tooth surface, that is, the change of torque, changes with the size of the transmitted torque, and its transmission characteristics are variable stiffness.So it has better than normalFlexible couplingCan withstand greater load changes.The buffering effect produced by the transmission force when the reed deforms along the tooth arc, especially when the machine is started or strong impact load, can protect the supporting parts to a certain extent.
  4. Low noise and good lubrication.The aluminum alloy shell protects the spring from being thrown out during operation, and the shell is filled with butter, which not only makes the lubrication good, but also makes the noise when the reeds engage is absorbed by the butter damping and eliminated.
  5. Good vibration damping and long service life.The coupling is axially embedded in the tooth grooves of the two coupling halves with a serpentine spring leaf, and torque is transmitted through the tooth grooves of the embedded two halves of the coupling.The serpentine spring plate is made of high-quality spring steel, undergoes strict heat treatment, and is specially processed. It has good mechanical properties, so that the service life of the coupling is much longer than that of the non-metal elastic element coupling (such as elastic sleeve pin coupling). Shafts, nylon rod pin couplings) have greatly increased.
  6. Large installation deviation is allowed.Because the spring leaf and the tooth arc surface are in point contact, the coupling can obtain greater flexibility.It can be installed to work normally under conditions of radial, angular and axial deviations at the same time.
  JSB type serpentine spring coupling is mainly applicable occasions:
  1. It is suitable for medium and high-power transmission shafts connecting two coaxial lines, with certain compensation for the relative deviation of the two shafts, vibration reduction and buffering performance, working temperature -30℃~+150℃, and transmission of nominal torque 45~800000N.m.
  2. Mainly used in rock crusher, crank reciprocating motion, reducer, metallurgy, mining, hoisting machinery, etc.
  The basic parameters and main dimensions of the JSB serpentine spring coupling:

model Nominal torque Tn KN.m  Allowable speed (n) r/min  Diameter of shaft hole d  Shaft hole length L  Overall length L0  L2  L3  Gap t  Weight kg  Lubricant kg  Allowable displacement
Radial y  Axial x  Angular a 
JSB1  0.045 6000 18-28  47 97 48 24 112 3 2 0.027 0.15 ± 0.3  0.076
JSB2  0.14 6000 22-35  47 97 48 25 122 3 2.6 0.048 0.15 ± 0.3  0.076
JSB3  0.224 6000 25-42  50 103 51 26 130 3 3.4 0.054 0.15 ± 0.3  0.076
JSB4  0.4 6000 32-50  60 123 61 31 149 3 5.5 0.068 0.2 ± 0.3  0.1
JSB5  0.63 6000 40-56  63 129 64 32 163 3 7.3 0.086 0.2 ± 0.3  0.127
JSB6  0.9 5500 48-65  76 155 67 34 174 3 10 0.113 0.2 ± 0.3  0.127
JSB7  1.8 4750 55-80  89 181 89 44 200 3 18 0.172 0.2 ± 0.3  0.15
JSB8  3.15 4000 65-95  98 199 96 47 233 3 26 0.254 0.2 ± 0.3  0.18
JSB9  5.6 3250 75-110  120 245 121 60 268 6 42 0.427 0.25 ± 0.5  0.2
JSB10  8 3000 80-120  127 259 124 63 287 6 55 0.508 0.25 ± 0.5  0.23
JSB11  12.5 2700 90-140  149 304 143 74 320 6 82 0.735 0.28 ± 0.5  0.25
JSB12  18 2400 110-170  162 330 146 75 379 6 123 0.908 0.28 ± 0.5  0.3
JSB13  25 2200 120-200  184 374 156 78 411 6 180 1.135 0.28 ± 0.5  0.33
JSB14  35.5 2000 140-200  183 372 204 107 476 6 230 1.952 0.3 ± 0.5  0.4
JSB15  50 1750 160-240  216 438 216 115 533 6 322 2.815 0.3 ± 0.5  0.45
JSB16  63 1600 180-260  216 438 226 120 584 6 449 3.496 0.3 ± 0.5