Application and installation requirements of diaphragm coupling

　　Diaphragm couplings are widely used and can be effectively used in many industries.So, what should we pay attention to when installing the diaphragm coupling? Let us take a look with the editor.

　　Application characteristics and structure of diaphragm coupling

　　The common and different points of the two diaphragm couplings are divided into convex and concave. The convex is divided into three types: skeleton type, boneless type and radial type.The inner side of the tire ring is combined with the steel frame by a vulcanization method, and nuts are welded at the bolt holes on the frame.During assembly, the flange of the bolt is connected to the two coupling halves, and the torque is transmitted by tightening the bolt, so that friction is generated between the tire and the flange end surface. The tire coupling has a higher performance due to the torsional shear deformation of the tire ring的flexibility.The relative displacement compensation ability of the two shafts is strong, the damping is good, the structure is simple, no lubrication is required, and the installation, disassembly and maintenance are more convenient.The disadvantage is that the bearing capacity is not high, and the shape and size are large.With the increase of the relative torsion angle of the two shafts, the shape of the tire is distorted and the axial dimension is slightly reduced, which increases the bearing load, generates a large additional axial force on the two shafts, and reduces the bearing life.When the tire coupling is running at high speed, the centrifugal force on the outer edge of the tire expands outward, thereby further increasing the additional axial force.Therefore, measures should be taken to make the direction of the stress of the tire opposite to the direction of the stress generated during work to offset some additional axial forces and improve the working and conditions of the coupling and the two bearings.

　　Their common feature is that the tire ring is bolted to connect the two couplings to achieve a biaxial connection.

　　1.The diaphragm coupling does not require lubrication, which can effectively save maintenance costs.

　　2. The wear condition of the worn parts of the diaphragm coupling can be directly judged without stopping and disassembling, which is convenient for maintenance and replacement.

　　3. Replace the worn parts of the diaphragm coupling, the installation is very simple.When replacing tires, the motor and equipment are not disturbed.

　　4. The two drive shafts of the diaphragm coupling allow a large degree of misalignment, allowing 4 degrees of angular displacement, 6 mm of parallel displacement and 8 mm of axial displacement;

　　5.Diaphragm coupling has good shock absorption performance.The coupling can be "curled" by approximately 12 degrees to absorb the vibration of the system.

　　6. The diaphragm coupling can solve the torsional vibration problem by choosing tires with different stiffness.

　　7. The diaphragm coupling can realize bidirectional drive due to the bidirectional winding of the load in the steel wire rope;

　　8. Diaphragm coupling has no gap at all, it is an ideal choice for reverse drive, especially suitable for gear transmission;

　　9. By choosing fire-proof or anti-static tires, diaphragm couplings can be used in fire-proof and anti-static situations.

　　10. Various types of flanges, FHBEM can be used for diaphragm coupling positioning sleeves, cardan shafts, high-speed shafts and flywheels;

　　11. Diaphragm coupling can use taper sleeve or short taper sleeve to make the transmission structure compact;

　　12. The diaphragm coupling has a simple structure and is easy to assemble.When replacing the tire body, there is no need to move the coupling axially.

　　Pay attention to 8 points when installing the diaphragm coupling

　　Products with diaphragms have edges, which may cause injury. It is recommended to wear thick gloves.

　　Daily couplings provide you with 8 points that you need to pay attention to when installing diaphragm couplings, as follows:

　　1. Products with diaphragms have edges, which are likely to be injured.It is recommended to wear thick gloves during installation.

　　(2) Please install a protective cover and other devices around the coupling to ensure it.

　　3. During the installation process, when the axis deviation exceeds the allowable value, the coupling will be deformed, causing damage or shortening the service life.

　　no no.The allowable axial deviation of the coupling should include radial, angular and axial deviations.During installation, make adjustments to ensure that the shaft deviation is within the allowable value range of the corresponding product catalog.

　　5. When multiple deviations occur at the same time, the corresponding tolerance is halved.

　　②In order to prolong the service life of the coupling, it is recommended to set the shaft deviation within 1/3 of the allowable value.

　　7. Tighten the screws after inserting the mounting shaft, otherwise the coupling will be deformed.When tightening the screws, use a torque wrench.Do not use screws other than the accessories.

　　8. If abnormal sound occurs during operation, stop the operation immediately and check the installation accuracy, loosening of screws, etc.It is recommended to apply adhesive on the outer surface of the screw after installation and commissioning to improve the protection performance.

　　The above is the matters needing attention in the diaphragm coupling.For more information about coupling, please follow our official website.