Installation of diaphragm coupling and application of dyeing machinery

Cooling tower ventilator is a large axial flow ventilator, which plays the role of reducing the temperature of circulating water in the cooling tower. It is composed of air duct, transmission shaft, blade, wheel hub, diaphragm coupling, reducer and other components. The diameter of impeller is 914m and 853m respectively, and the speed of motor and reducer is 1470r/min and 127R /min respectively. The power is 180kW. The diaphragm and bolt at the coupling belong to wearing parts, which often occur faults such as breaking, loosening and twisting in use. The short failure cycle and frequent change affect the normal operation of the fan. The function of diaphragm coupling: Ventilator is a large rotary machine, and its parts are compact and inseparable. Problems in any part will affect the overall operation of the fan to different degrees. Although the diaphragm coupling is a small part, but it has the incomparable role of other parts, first it can be used to connect the motor, reducer and motor shaft. And can transfer torque. Diaphragm coupling is suitable for two axes in the work of relative displacement, high frequency of starting, often positive, reverse and load, speed has changes in the occasion, can adjust the shaft Angle error occurred in the operation, is conducive to compensate the motor and reducer between the center deviation and axial movement. The stress caused by the Angle and axial misalignment can be absorbed by the flexural elastic deformation of the diaphragm of the diaphragm coupling, which can compensate the radial displacement of 3 ~ 06mm, λ =26mm axial displacement, < & PLusmn; The decrement of one. At the same time, the elastic element can store mechanical energy, so it has the ability to moderate the impact and damping vibration. The diaphragm coupling can absorb part of the impact, vibration and fluctuation. In addition, it also has other roles: ⑴ from one axis to another axis transfer efficiency; The installation position of the coupling is close to the reducer and motor, so it can reduce the fatigue of the bearing and shaft; (3) prevent the reversal of load; (4) Strong ability to withstand misalignment, small impact on the connected elements.

Diaphragm couplings and tire couplings can be used not only for dyeing equipment, but also for textile equipment such as plain washing machine washing machine. Diaphragm coupling two and a half of coupling and stainless steel coupling in the middle of the diaphragm, the principle of which is made by stainless steel diaphragm three-dimensional deformation to adjust two coupling not neutral, due to the coupling strength is high, do not need lubrication, acid and alkali resistant oil, has a good impact, is also one of the coupling of dyeing machinery. Diaphragm couplings are widely used to drive shafting in a variety of mechanical devices, including textile machinery. The textile dye liquid circulates in the circulating system of the dyeing machine, which is driven by the motor through the coupling to run the circulating pump. Domestic dyeing machines generally use elastic pin coupling and elastic sleeve pin coupling, while some imported dyeing machines use tire coupling and diaphragm coupling. The tire coupling is a flexible coupling that transmits torque through the high elasticity of the rubber tire body, without rigidity between the two halves of the coupling. From this point of view, the motor and circulating pump can absorb the impact of their own, have a protective effect on the mechanical properties of both, so the operation and other diaphragm coupling compared with good vibration absorption effect and very little noise. This coupling is especially suitable for use in very wet and corrosive environments, so tire couplings are more suitable for dyeing devices. At the same time, the tire coupling has a very good elasticity, can greatly make up for the uneven installation of the diaphragm coupling.

Diaphragm coupling is suitable for corrosive media: Diaphragm coupling on the elastic deformation of the diaphragm to compensate for the two axes relative displacement, is a kind of high performance metal flexible coupling components elastic, no lubrication, structure is compact, high intensity, long service life, no rotating clearance, not influenced by temperature and the oil, diaphragm coupling has the characteristics of acid and alkali resistance, corrosion resistance, Suitable for high temperature, high speed, corrosive medium working environment shafting drive, diaphragm coupling is widely used in all kinds of mechanical devices shafting drive, Such as water pump (especially high-power, chemical pump), fan, compressor, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, mining machinery, metallurgical machinery, aviation (helicopter), naval high-speed power transmission system, applied to high-speed transmission shaft system after dynamic balance has been relatively common. Stainless steel diaphragm couplings have been widely used in heavy industry, light industry, household goods industry and building decoration industry because of their excellent corrosion resistance, molding, compatibility and strength and toughness in a wide range of temperatures. The diaphragm coupling made of stainless steel has a light level close to the mirror, and feels hard and cold. It is a relatively avant-garde decorative material, in line with the cool aesthetic of the metal age.