The design and manufacture of JZMJ diaphragm couplings have reached a level comparable to that of the outside world. It has also accumulated a considerable amount of application performance in the high-speed and high-power fields.Both internal OEMs and end users have a wide range of awareness.Judging from the previous use experience, the use of the JZMJ diaphragm coupling has at least the following advantages: timely and sufficient technical support, the selection of the coupling can be matched with the unit to achieve the best use effect.With internal products, the two parties can communicate directly during the design process of the unit, and fully negotiate the performance parameters and structural dimensions.Moreover, this kind of communication is more direct and effective, which can save time and improve design efficiency.After-sales service responds quickly, especially the supply cycle of spare parts is greatly shortened.The internal suppliers have a short production and supply cycle, and can flexibly respond to changes in demand, and can respond quickly to emergency needs.In recent years, the service awareness of each has been significantly strengthened, and service capabilities and service quality have been continuously improved.Product price advantage is obvious, especially the price of spare parts is very low.Under normal circumstances, the price of producing JZMJ diaphragm couplings is only a fraction of the imported price.For the host, it can reduce the cost of the complete set, and for the end user, it can quickly obtain technical support and spare parts supply at a very low price in the subsequent operation.

　　First, check the material of the coupling carefully: the more commonly used materials of coupling are phenolic plastic, nylon, polytetrafluoroethylene and so on.But most of the couplings are made of steel, but because the price of steel has always been high now, some profiteers have made a lot of effort in the raw materials of the coupling! Reduce the model of the steel to replenish it! Use ordinary steel, carbon steel, malleable steel and other materials, and even more use iron pipes instead of steel products.Therefore, it can be seen from the appearance of the JZMJ diaphragm coupling that there are many differences in color. The appearance of these low-cost steels is mostly whitish and there is a clear difference from the greenish color of bearing steel.Measuring the tightening angle of the lock nut can be used to determine the correct interference of small and medium-sized bearings on the tapered journal.A guide value for the tightening angle a has been established to help locate the bearing on the tapered journal.Porous metal is a kind of powder material. It has a porous structure. If it is immersed in lubricating oil, the micropores are filled with lubricating oil and become an oil-containing bearing with self-lubricating properties.Porous metal materials have low toughness and are only suitable for steady non-impact loads and medium and low speeds.

　　JZMJ diaphragm couplings and rigid couplings are also flexible couplings. The need for quenching and tempering depends on the working conditions of the coupling.If the coupling uses a large power, it is recommended that the JZMJ diaphragm coupling be down-regulated.The heat treatment method of high temperature tempering after quenching is called quenching and tempering treatment.High temperature tempering refers to tempering between 500-650°C.Quenching and tempering can make the performance and material of steel be adjusted to a large extent, and its strength, plasticity and toughness are good, and it has good comprehensive mechanical properties.After quenching and tempering, tempered sorbite is obtained.Tempered sorbite is formed when martensite is tempered. It can be distinguished by magnification of 500~600 times or more under an optical microscope phase microscope. It is a ferrite matrix with carbides (including sorbite). Carbon body) the composite structure of spherulites.It is also a tempered structure of martensite, a mixture of ferrite and granular carbide.At this time, the ferrite has basically no carbon supersaturation, and the carbides are also stable carbides.It is a balanced organization at room temperature. The installation of the JZMJ diaphragm coupling has key connection and tension sleeve connection, which can also be divided into cold fitting and hot fitting. The tolerance of the coupling that needs to be hot fitting needs to be tightly matched.There are three main types of shaft-hole fit: clearance fit: when the hole is assembled with the shaft, there is a clearance (including a small clearance equal to zero); the second is a transitional fit: when the hole is assembled with the shaft, there may be clearance or interference Cooperate.As shown in the figure below, the tolerance zone of the hole and the tolerance zone of uranium overlap each other.The three types are interference fits: there is interference when the hole is assembled with the shaft (including the fit where the small interference is equal to zero).In the process of machining and manufacturing, the fit state of two or more parts can be roughly divided into sliding fit, transition fit and tight fit, etc. The damping sleeve in the JZMJ diaphragm coupling is made of 45 steel It is processed and modulated to form, which mainly plays a role of damping and cushioning.The coupling diaphragm is a high-performance flexible coupling with strong metal components. It does not require lubrication, has a compact structure, high strength, long service life, no rotation gap, and is not affected by temperature and oil pollution. It has acid resistance, The characteristics of alkali resistance and corrosion resistance are suitable for shafting transmission in high temperature, high speed, and corrosive medium working conditions.