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Due to manufacturing and installation errors, deformation after load, and the influence of temperature changes on the two shafts connected by the coupling, the relative position of the two shafts will change, and strict alignment is often not guaranteed.According to whether the coupling has elastic elements, whether it has the ability to compensate various relative displacements, that is, whether the coupling function can be maintained under the premise of relative displacement, and the purpose of the coupling, couplings can be divided into rigid couplings, Flexible couplings and couplings.
The diaphragm coupling has a strong ability to compensate for the misalignment of the two axes. Compared with the gear coupling, the angular displacement can be doubled, the reaction force is small during the radial displacement, the flexibility is large, and a certain axial and diameter are allowed. And angular displacement.
The shaft system to which the coupling diaphragm is connected and its operating conditions. For the shaft system that has a large mass and a large moment of inertia, and often starts, shifts or reverses, you should consider choosing the one that can withstand large instantaneous overloads and can Elastic and elastic pin coupling for cushioning and absorbing vibration.
The elastic coupling is a one-piece metal elastic body, usually cut from a metal round bar. Commonly used materials are aluminum alloy, stainless steel, and engineering plastics, which are suitable for various deviations and accurate torque transmission.
Plum blossom couplings are mainly processed by machining methods such as turning, milling, and broaching, and then are heat treated as a whole to ensure sufficient mechanical strength. There is also a claw plate on the market that is a casting, which can be used in large quantities of plum blossom couplings. Two types of production are produced, and processing losses are eliminated.
The large torque transmitted by the pin coupling should be less than the allowable torque value. The determination of the large torque should consider the acceleration and deceleration torque and overload torque required for machine braking. However, when the design data is insufficient or the analysis is difficult, the large torque is not easy to determine. It can be selected according to the calculated torque. That is, it does not exceed the allowable torque value.
The speed governing device of the steam turbine coupling is the core component to ensure the smooth operation of the steam turbine unit. If the speed governing system fails, resulting in large fluctuations in the speed, it will cause unstable operation, unit vibration, runaway and other major equipment accidents.
Gear coupling transmission also has the function of transmitting power and changing speed. Gear transmission itself also needs to consume a certain amount of energy, but it is more efficient than belt transmission.
Have a solid practical foundation. Generally speaking, coupling mechanical designers need to have a certain degree of education. I don’t mean that they are not undergraduates. In this industry, practice is far more important than education. The course you must know is: Geometry , Mechanical drawing, material science, tolerance and coordination, mechanism.
This year’s new characteristics of the “Top 30” enterprise evaluation in the coupling industry, and more adherence to the principle of “science, fairness, and openness” — Based on the evaluation of the “Top 2015” enterprises in the industry in 30, according to the voice of the enterprise and industry development Circumstances, evaluation methods, and work processes are refined.
In the process of coupling machining, German machinery books are often used. The following is the translation of coupling machining technical terms in German by the Ever-Power Coupling Technology Department
If there is a possibility that Murphy's law of the coupling will go bad, no matter how small the possibility is, it will always happen and cause most possible losses.