The universal coupling utilizes the characteristics of its mechanism
the torque and movement can be reliably transmitted. The characteristics of universal couplings are: the structure has different penetrating angles, and the two axial included angles of universal couplings are different, generally between 5°-45°.
Universal joint coupling use
In the high-speed and heavy-duty power transmission, some couplings have buffers, and under the condition of damping, they are made to rotate together to transmit the mechanical parts of the variable speed. And improve the dynamic performance of shafting. The coupling is composed of two halves, which are respectively connected with the driving shaft and the driven shaft. Generally, power machines are mostly connected with couplings and working machines.
There are certain types of universal joint couplings
The coupling has two connected shafts. Due to manufacturing and installation errors, post-deformation and temperature changes, the relative position of the two shafts will change, and strict alignment is often not guaranteed. Components, whether it has the ability to compensate for various relative displacements, that is, whether it can maintain the connection function and the purpose of the coupling under the condition of relative displacement. Couplings can be divided into rigid couplings, flexible couplings and safety Coupling. The main types of couplings, characteristics and their role in the category of remarks in the transmission system
Rigid couplings can only transmit motion and torque without other functions, including bidirectional couplings, sleeve couplings, clamp couplings, etc.
Flexible couplings Flexible couplings without elastic elements can not only transmit motion and torque, but also have different degrees of introduction. The radial and angular compensation performance includes gear couplings, universal couplings, Chain coupling, slider coupling, diaphragm coupling, etc.
The flexible coupling with elastic elements can transmit motion and torque; it has different degrees of introduction, radial and angular compensation performance; it also has different degrees of vibration reduction and buffering, improving the working performance of the transmission system including Various flexible couplings with non-metal elastic elements and flexible couplings with metal elastic elements. The structure of various elastic couplings is different, the conduction is different, and the role in the transmission system is also different.
Flexible safety couplings also have different levels of compensation performance, including pin type, friction type, magnetic powder type, centrifugal type, hydraulic type and other safety couplings
The magnitude and direction of the relative displacement of the two axes. When it is difficult to maintain strict and precise alignment of the two shafts after installation and adjustment, or when the two shafts will interfere with additional relative displacement during the working process, the flexible coupling should be replaced. For example, when the radial displacement is in the axial direction, the slider coupling can be selected, and the angular displacement penetrating or intersecting two shafts can be connected with a universal coupling.
The reliability and working environment of the coupling. Couplings that do not require lubrication are usually made of metal components and are more reliable; couplings that require lubrication are easily affected by the degree of lubrication and may pollute the environment. Couplings containing non-metallic components such as rubber are sensitive to temperature, corrosive media and strong light, and are prone to aging.
Due to reasons such as manufacturing, installation, load deformation and temperature changes, it is difficult to maintain strict and accurate alignment of the two shafts after installation and adjustment. There is a certain degree of displacement in the x and Y directions and the deflection angle CI. When the radial displacement is large, the slider coupling is optional, and the angular displacement penetrating or intersecting two shafts can be connected with universal couplings. When the two shafts produce additional relative displacement due to interference during the working process, a flexible coupling should be selected.
Post time: Aug-27-2020