Talking about the disadvantages of my country's coupling industry in the production of large couplings
The equipment concept and application method of the diaphragm coupling: the most advanced application of the diaphragm coupling in industrial development was seen in the 1960s and 1970s. After the reform and opening up, with the introduction of large-scale complete sets of industrial devices, diaphragm couplings have gradually become known to Chinese people.
Due to its many advantages, diaphragm couplings have become the first choice for process power equipment, especially large petrochemical process pumps, boiler feed pumps, blowers, compressor units, etc.
In the early 1980s, some domestic scientific research institutions started the design and application research of diaphragm couplings. After more than 20 years of development, its application performance has developed from small-power, low-speed pump sets to high-power, high-speed turbo-compressor sets. Domestic diaphragm couplings have basically replaced imported products. At the same time, diaphragm couplings are often used in the transformation of old units that originally used gear couplings, and sometimes they often have the effect of "reviving the dead".
However, domestic users often have concerns about choosing domestic diaphragm couplings, especially for large turbocompressor units. They mainly worry about the following three areas:
(1) The design and manufacture of domestic diaphragm couplings are not up to standard.
(2) Domestic materials are not qualified.
(3) There is no application performance of domestic diaphragm couplings.
In fact, these worries are no longer necessary. Domestic mainstream enterprises generally start from basic research, master key technologies such as material selection, design calculation, processing technology, and dynamic balance, and have more than 20 years of engineering application experience. It has also accumulated a lot of achievements in the field of high speed and high power.
The key material of the diaphragm coupling is the metal diaphragm, which is generally imported austenitic stainless steel, and there is no difference between domestic materials and foreign countries; in terms of design calculations, finite element and optimization techniques have been widely used, and the products of domestic mainstream enterprises The performance is already comparable to that of famous foreign brands; the stress distribution of a typical diaphragm is given by finite element analysis, and the optimized diaphragm shape only retains the material necessary for torque transmission, and removes almost all redundant materials, so that The diaphragm not only has a more reasonable stress distribution, but also has maximum flexibility, so that it can compensate for greater misalignment, and the additional reaction force on the connecting device is smaller.
Our company provides professional coupling design, production and sales services for various industries. After more than 30 years of hard work and development, it has a certain scale and strength, and now has a skilled service team, with excellent service quality, professional and safe technical service strength, to provide higher and better quality for different machinery industries services. Our company has standard matching couplings for water pumps, fans, servo motors and other equipment all year round, and the general national standard can be shipped on the same day. The main products of our company are: various star elastic couplings, tire couplings, universal couplings, drum gear couplings, plum blossom elastic couplings, rigid couplings, sliding Block couplings, roller chain couplings, diaphragm couplings, elastic sleeve pin couplings, elastic pin couplings, elastic pin gear couplings, flexible claw couplings, Gear couplings, etc. Our company adheres to the business philosophy of "integrity-based, strength first, and wholeheartedly serving customers", and users from all over the country are welcome to call and order!
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