Coupling connects two shafts so that the appropriate safety rules for a mechanical device before turning pass. General order for flexible couplings can be divided into two categories with rigid coupling. When two power transmission shafts to be configured in a straight line when trouble occurs, or when you install the two axes of the very simple, you should use a flexible coupling, it has eased absorb parallel, angle, axial difference, improving power transmission system features, so in the installation, even if a few of the axis deviation occurs while bearing situation would not be forced, in the market, is widely used, and can not be caused by a rigid coupling components for eccentricity, declination, the make two shafts are connected integrally fixed, and therefore must use very high concentricity.

Chosen on the basis of mechanical coupling required features, system operation to choose the appropriate model:.

1. Torque Size: coupling the drive shaft torque maximum torque should be twice as large as, for example: If the drive torque is 5 (Nm), should be used torsion is 10 (Nm) couplings, materials with steel torsion better.
2. twisted / stiffness: flexible coupling absorbs parallel deviation angle deviation, axial deviation, no high rigid coupling, so that the shaft must be very high precision single-ended.
3. The plant where applicable - high and low acid bases: Coupling of materials must carefully choose whether high temperature of acid-base load plant together..
4. The presence of Backlash
5. insulation
6. shock resistance
7. The maximum speed
8. With the machine's safety protection
9. aperture range is applicable

1, the two coupling halves in the middle of the interval is too wide, causing the diaphragm by large axial force, leaving the stranding stranding bolt holes or wear and tear, resulting in abnormal noise;

2, the axial coupling halves offset deflection angle is too large or too large, it can also cause vibration and abnormal sound equipment operation;
3, and the passive side of the speed difference between the active side can cause vibration and abnormal sound equipment operation;
4, the motor speed encoder failure, when the fast slowly causing the motor speed, the diaphragm coupling abnormal sound.
Installation Considerations

Products with a diaphragm with sharp edges, injury might have recommended to wear thick gloves when installing.

Please install the coupling guard and other peripheral devices to ensure safety.

When the axis deviation exceeds the allowable value of the installation, the coupling may be deformed so as to cause damage or shorten life.

Permissible axial deviation coupling comprises a radial, angular and axial misalignment. Installation, make adjustments to ensure that within the axial deviation in the corresponding catalog of permissible value.
When multiple deviations occur simultaneously, the corresponding allowable value to be halved.
In order to extend the service life of the coupling, we recommend keeping misalignment within the permissible value is set to 1/3.
 In the Insert mounting shaft and then tighten the screws, otherwise it will cause distortion coupling. When tighten the screws, use a torque wrench, do not use screws to install accessory away.
If there is abnormal sound during operation, immediately stop the run, and the installation precision, loose screws and so were checking is recommended after installation is completed the screw exterior surface adhesive, increased protection.
Maintenance

1, before installation, two shaft surface should be cleaned, check the end face of the keyway mouth, etc. with the situation;
2, after the diaphragm coupling installation, the normal operation of a class, you must check all screws, if found loose, must be tightened, so that repeated several classes to ensure that no loose;
3, in order to prevent the diaphragm fretting occurs at high speed, causing the diaphragm bolt holes and microcracks appear damaged, between the membrane coated with solid lubricants such as molybdenum disulfide or by grinding the surface of the membrane coating layer processing;
4, diaphragm couplings should avoid long-term use and operation of overload occurrence of accidents;
5, diaphragm coupling operation at work, you should always check whether a diaphragm coupling anomalies, if any abnormal phenomenon must and into maintenance;
6, diaphragm couplings may be due to the operation of the diaphragm coupling caused various venues personal and equipment accidents must take appropriate security measures

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