universalcouplingofchoice
couplingofchoiceMainly considering the required transmission shaft speed, load size, installation accuracy of the two connected components, smoothness of rotation, price, etc., with reference to various typescouplingThe characteristics,choiceA versatile onecouplingType. SpecificallychoiceThe following points can be considered:
Due to manufacturing, installation, deformation under load, and temperature changes, it is difficult to maintain strict and accurate alignment of the two axes after installation and adjustment. There is a certain degree of displacement and skew angle CI in the x and Y directions. When the radial displacement is large, a slider can be selected as an optioncouplingUniversal joint can be used for connections with large angular displacement or intersecting axescouplingWait. When there is a significant additional relative displacement between the two axes during the work process, flexibility should be selectedcoupling.
2．couplingThe working speed and the magnitude of the centrifugal force caused. For high-speed transmission shafts, those with high balance accuracy should be selectedcouplingFor example, membranecouplingWait, instead of using eccentric sliderscouplingWait.
3. The magnitude and nature of the torque to be transmitted, as well as the requirements for buffering vibration function.
For example, for high-power heavy-duty transmission, a gear type can be selectedcouplingFor transmission with severe impact loads or requirements to eliminate shaft torsional vibration, tire type can be usedcouplingWait. The vast majoritycouplingAll have been standardized or normalized. The task of a designer is selection, not design.
SelectcouplingThe basic steps are as follows:choicecouplingThe type depends on the size of the transmitted load, the speed of the shaft, the installation accuracy of the two connected components, etc., referring to various typescouplingcharacteristic,choiceA versatile onecouplingType.
specificchoiceThe following points can be considered:
1) The magnitude and nature of the torque to be transmitted, as well as the requirements for buffering and vibration reduction functions. For example, for high-power heavy-duty transmission, a gear type can be selectedcouplingFor transmission with severe impact loads or requirements to eliminate shaft torsional vibration, tire type can be usedcouplingWaiting for someone with high elasticitycoupling.
2)couplingThe working speed and the magnitude of the centrifugal force caused. For high-speed transmission shafts, those with high balance accuracy should be selectedcouplingFor example, membranecouplingWait, instead of using eccentric sliderscouplingWait.
3) The magnitude and direction of the relative displacement between the two axes. When it is difficult to maintain strict and precise alignment of the two axes after installation and adjustment, or when there will be significant additional relative displacement between the two axes during operation, flexibility should be selectedcouplingFor example, when the radial displacement is large, a slider can be selected as an optioncouplingUniversal joint can be used for connections with large angular displacement or intersecting axescouplingWait.
4)couplingReliability and working environment. Usually made of metal components that do not require lubricationcouplingThis is more reliable; Need lubricationcouplingIts performance is easily affected by the degree of lubrication and may pollute the environment. Containing non-metallic components such as rubbercouplingSensitive to temperature, corrosive media, and strong light, and prone to aging.
5)couplingManufacturing, installation, maintenance, and cost. On the premise of meeting the requirements of convenient performance, it is advisable to choose products that are easy to assemble and disassemble, easy to maintain, and have low costscouplingFor example, rigiditycouplingNot only is the structure simple, but it is also easy to assemble and disassemble, making it suitable for low-speed, rigid transmission shafts. General non-metallic elastic componentscoupling(For example, elastic sleeve column pin)couplingElastic column pincouplingPlum blossom shaped elasticitycouplingDue to its excellent comprehensive ability, it is widely applicable to general medium and small power transmissions.