The torque transmission of the coupling is mainly to set the nominal torque requirement of the transmission system. When the load is overloaded, the torque transmission element is separated from the two halves of the coupling to achieve the protection of the transmission system at both ends of the main shaft. On the one hand, the stability of the coupling transmission and the service life of the coupling accessories. The dynamic balance of the coupling is a key issue that affects the stability of the coupling and the overall stability and service life of the transmission system. The damage state and service life of the coupling accessory diaphragm are issues that need attention.
The service life of the coupling and the service life of the coupling parts are optimized and manufactured separately, which can extend the service life. The two halves of the ordinary cast iron coupling are easily hurt by fracture. The high-quality coupling should match the strength of the two halves of the coupling with the overall strength of the transmission system, and the strength of the coupling accessories is the nominal rotation of the coupling. Torque requirements, that is, the failure mode of the coupling should be that the coupling parts are damaged and the two halves of the coupling are basically intact. Such couplings are of high quality. Coupling materials are roughly divided into sections, castings, forgings, etc., and cast steel and forgings are most of the choices of coupling materials.
Profiles are generally the form of coupling materials often used in relatively small couplings. When couplings are manufactured with profiles, it is necessary to pay attention to quenching and tempering treatment is the key to effectively improving material performance. The choice of coupling material is directly related to the coupling. The level of performance. Cast steel materials are suitable for relatively large and complex coupling structures. Couplings are often suitable for transmission systems that have relatively large torque transmission and are subjected to reciprocating impact loads. Therefore, even if cast steel is used due to the price of the coupling, the material composition and casting defects of the cast steel material must be strictly controlled, and the cast steel material must be tempered accordingly.
Forging materials have the advantages of increased material density and no casting defects. However, forging materials may have the disadvantage of forging cracks. Therefore, forging materials should be normalized while detecting the defects of forging cracks. The quality of the coupling is reflected in the entire process of coupling manufacturers from coupling design to coupling precision manufacturing. When selecting the coupling, please note that the rated torque is greater than the system load torque. The rated torque has taken into account the variable load factors during operation, so there is no need to adjust the rated torque value when the coupling is selected. When selecting the size of the coupling, please note that the load torque generated by continuous operation should be lower than the rated torque.
