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    Coupling selection essentials and connection

    Source: Cangzhou Ever-Power Coupling Co., Ltd.发布时间:2018-01-17 11:11:04

     The essentials of coupling selection:
    ①Permissible rated torque-is the allowable value of torque that the coupling bears during actual use.
    ②Maximum allowable torque-is the maximum critical value for damage to the coupling during use.
    ③Maximum allowable speed-It is necessary to make sure that the speed of the motor is within this range when selecting the model.
    ④ Allowable eccentricity-the allowable value of the parallel deviation of the axis of the two shafts.
    ⑤ Allowable deflection angle-allowable value of mutual angle formed between two shafts.
    ⑥ Allowable axial deviation-the allowable value of the displacement of the two axes in the axial direction.
    When starting, stopping, and switching between forward and reverse rotation, the motor will apply a load greater than the maximum torque of the motor to the coupling. Therefore, when selecting the coupling, the rated torque of the coupling should be greater than the maximum torque of the motor.
    Coupling is a mechanical part used to connect two shafts (active shaft and driven shaft) in different mechanisms to rotate together to transmit torque.In high-speed and heavy-load power transmission, some couplings also have the function of buffering, damping and improving the dynamic performance of the shafting.The coupling is composed of two halves, which are respectively connected with the driving shaft and the driven shaft.The general power machine is mostly connected with the working machine by means of a coupling.Therefore, sometimes in the process of installing the coupling, we have to pay attention to the deviation in the process of connecting the shaft to the shaft.The coupling is composed of two halves, which are respectively connected with the driving shaft and the driven shaft.The general power machine is mostly connected with the working machine by means of a coupling.Therefore, sometimes in the process of installing the coupling, we must pay attention to the deviation in the process of connecting the shaft and the shaft. It has a beautiful surface and good corrosion resistance. It does not need to go through the surface treatment such as coloring, but the inherent surface performance is used. A kind of steel in many aspects, usually called stainless steel.High alloy steels such as 13 chromium steel and 18-chromium nickel steel are representative of performance.From a metallographic point of view, because stainless steel contains chromium, a very thin chromium film is formed on the surface. This film isolates the intrusion of oxygen from the steel for corrosion resistance.
    In order to implement the coupling foundation, the universal standard chain coupling uses a common chain and meshes with two parallel sprockets with the same number of teeth at the same time. The main difference between chain couplings of different structure types is the use of different chains, and the common ones are double rows. Roller chain couplings, single-row roller chain couplings, toothed chain couplings, nylon chain couplings, etc.The chain coupling has a simple structure (composed of four pieces), convenient assembly and disassembly, no need to move the connected two shafts when disassembling, compact size, light weight, certain compensation ability, low requirements for installation accuracy, reliable work, and longevity The advantages of longer length and lower cost are widely used in various important structural parts in quenching and tempering treatment, especially those connecting rods, bolts, gears and shafts that work under alternating loads.The rectangular spline is characterized by high centering accuracy and good centering stability.For the taper hole to facilitate the installation and disassembly of the ordinary shaft, the key link is safe and reliable. The coupling is a mechanical part used to connect two shafts (the driving shaft and the driven shaft) in different mechanisms so that they can rotate together to transmit torque.In high-speed and heavy-load power transmission, some couplings also have the function of buffering, damping and improving the dynamic performance of the shafting.
     

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