Shaft Coupling

With regard to the choice of coupling: Consider the choice of coupling needed to pass major axis of the high and low speed, load size, the two connected components, such as the installation of accuracy, a smooth rotation, and price and so on, refer to the characteristics of various types of coupling, choose a combination of coupling types. Specific options to be taken into account the following points: Write-off of 1.1 as a result of elastic coupling, installation, set by the deformation and temperature changes and other reasons, when installed, after adjustment, it is difficult to maintain a strict two-axis precision on. There is a certain degree of x, Y direction of displacement and deflection angle CI. When the radial displacement is larger, optional slider coupling, the larger or angular displacement of the axis connecting the two intersection options, such as universal coupling. When the course of their work have a greater two-axle additional relative displacement should be chosen coupling flexible elastic dowel pin. 1.2 Coupling the level of work and speed the centrifugal force caused by the size. For high-speed shaft, the balance should be selected with high precision coupling, such as the diaphragm coupling and so on, rather than the existence of eccentric choice of coupling, such as the slider. l-3 of the torque required to pass the size and nature of the vibration function on the buffer requirements. For example, the heavy-duty high-power transmission, the use of crown gear coupling coupling. Serious impact on the load or require the elimination of the transmission shaft torsional vibration, coupling the use of such tires. Coupling the vast majority have been standardized, or standardized (see relevant manuals). Designer's task is to choose, rather than design. Selection of the basic steps of coupling is as follows: Select the type of coupling Transmission of load in accordance with the size of the high and low speed shaft, the two connected components, such as the installation of precision, various types of coupling characteristics of reference, select a suitable type of coupling. Specific options to be taken into account the following points: 1) The torque required to pass the size and nature of the damping function of the buffer requirements. For example, LLB tire skeleton-type coupling of the heavy-duty high-power transmission, the use of crown gear coupling coupling; a serious impact on the load or require the elimination of the transmission shaft torsional vibration, the use of tires coupling, such as columns with a high flexibility of the coupling pin coupling. 2) The coupling of high and low speed work and the centrifugal force caused by the size. For high-speed shaft, the balance should be selected with high precision coupling, such as the diaphragm, such as coupling, Gear coupling, rather than the existence of eccentric choice of coupling, such as the slider. 3) two-axis the relative size and direction of displacement. When the installation is adjusted, it is difficult to maintain the strict accuracy of two-axle, or the course of their work will have a large two-axle additional relative displacement should be chosen flexible elastic dowel pin coupling, coupling performance. For example, when a larger radial displacement, the optional coupling slider, or a larger angular displacement of the axis connecting the two intersection options, such as universal coupling. 4) coupling of the reliability and working environment. Usually a metal crown gear coupling without lubrication made this a more reliable coupling; the need for lubrication of the coupling, and its performance to improve the degree of vulnerability to the effects of lubrication, and may pollute the environment. Rubber containing non-metallic crown gear coupling of the coupling of temperature, corrosive media, such as more sensitive and strong, and easy to aging, LLB tire skeleton-type coupling. 5) write-off coupling flexible coupling, installation, maintenance and cost. Will be used to meet the performance, the Assembly and Disassembly should be used to facilitate and safeguard a simple, low cost of the coupling. For example, just elastic dowel pin coupling is not only simple in structure, but also facilitate the Assembly and Disassembly, can be used for low-speed, large rigid shaft. General non-metallic flexible coupling crown gear coupling (for example, sets of elastic dowel pin dowel pin coupling coupling, flexible coupling pin-chu-chu pin coupling, flexible coupling plum-shaped, etc.) , due to the overall capability of a good, widely used in general, the low-power transmission.