DL multi-angle tire coupling balance problem

At present, in order to correct or greatly reduce the unbalance of the DL multi-angle tire coupling, the appropriate balance class should be selected according to the need, and after the product is manufactured and installed on the machine, the coupling specified balance (correction) plane, by adding or reducing the appropriate mass method, to achieve the balance class requirements. This process is called balance correction, or balancing for short.

DL type multi-angle tire coupling due to a variety of reasons, its center of mass or inertia spindle and its axis of rotation do not coincide, in operation will produce unbalanced centrifugal inertia force, centrifugal inertia force and dynamic deflection (mode) phenomenon, known as the rotor imbalance phenomenon, this imbalance phenomenon will inevitably cause shafting vibration, thus affecting the normal work and service life of the machine. Therefore, attention should be paid to its need. The degree of unbalance (unbalance U) is usually expressed by the product of the mass m of the rotor and the distance r from the center of mass to the axis of rotation of the rotor, mr, which is called the mass diameter product.

DL type multi-angle tire coupling can also be expressed by mass product per unit mass, currently known as eccentricity e, not eccentricity in the geometric sense. Mass diameter product (mr) is a relative quantity related to rotor mass, while eccentricity (e) is a specified quantity independent of rotor mass. The former is intuitive and often used for balancing operation of a specific given rotor, while the latter is used to measure the pros and cons of the rotor balance or detect the balance accuracy. The balance grade standard of the tire coupling is evaluated according to e.