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Long Service Life Of Brass Couplings


The brass coupling is the intermediate connecting part of the motion mechanism, which has a direct effect on the normal operation of the movement mechanism, so it must be paid attention to when using:

① brass couplings are not allowed to have more than the specified axle line skew and radial displacement, Plastic Brass Push in Coupling so as not to affect their transmission performance.

② Brass coupling bolts shall not be loosened, defective.

③ brass coupling and cross slider brass coupling to regular lubrication, generally 2-3 months plus grease, so as to avoid severe wear and tear, causing serious consequences.

The tooth width contact length of ④ brass coupling shall not be less than 70%, Plastic Brass Push in Coupling and its axial channeling momentum shall not be greater than 5mm.

⑤ brass couplings are not allowed to have cracks, if there is a crack to be replaced (can be tapped with a small hammer, according to the sound judgment).

⑥ brass coupling keys should be tightly coupled, not loose.

⑦ brass coupling tooth thickness wear, the lifting mechanism of more than the original tooth thickness of 15%, the operating mechanism should be scrapped when more than 25%, Plastic Brass Push in Coupling with broken teeth should also be scrapped.

⑧ Brass coupling elastic ring, gear brass coupling seal ring, if damage aging, Plastic Brass Push in Coupling should pay attention to timely replacement.

The size of the brass coupling, that is, the maximum radial and axial dimensions, must be within the allowable installation space of the machine equipment. Choose between easy to install and disassemble, no maintenance, long maintenance cycle or maintenance convenience, Plastic Brass Push in Coupling replacement of vulnerable parts without moving the two axes, the easy adjustment of the brass coupling.

It is difficult to adjust the two axes to the large machine equipment, and the brass couplings with durable and easy replacement parts should be chosen. Flexible brass couplings of metallic elastic elements are generally longer than flexible brass couplings with non-metallic elastic elements. Need to seal lubrication and use of durable brass couplings, will inevitably increase the maintenance workload. For the long-term continuous operation and high economic benefits, such as the high end of the mill transmission system in our metallurgical enterprises, the tooth type brass coupling is widely used at present, the tooth type brass coupling although theoretically transmits the torque to be big, but must in the lubrication and the seal good condition can work durably, and needs to check the seal condition frequently, the lubricating oil, the maintenance work is big, has increased the auxiliary working hours, Plastic Brass Push in Coupling reduces the effective working time, affects the production benefit.

Because of various reasons, the brass coupling does not coincide with its axis of mass or inertia, and it will produce unbalanced centrifugal inertia force when running, the phenomenon of centrifugal inertia force and dynamic deflection (vibration type), called unbalance phenomenon of rotors, is bound to cause the vibration of shafting, which affects the normal work and service life of the machine, so it must pay attention to it. The degree of imbalance (unbalance u) is usually expressed by the product Mr of the rotor's mass m and centroid to the rotor axis of rotation, called the mass-diameter product. It is also useful to express the mass of the unit mass, Plastic Brass Push in Coupling called the eccentric distance E (not the eccentricity of the geometrical sense). Mr is a relative quantity of the rotor mass, and the eccentric distance e is an absolute quantity independent of the rotor mass. The former is more intuitive, commonly used in the specific rotor balance operation, the latter is used to measure the balance of the rotor or the accuracy of the balance test, brass coupling of the level of the balance of the standard of E to evaluate. For the flexible rotor, the EN=UN/MN is used for the vibration type eccentricity (nth order mode), Plastic Brass Push in Coupling and the UN and MN are respectively the nth and the order modal mass.

To correct or minimize the unbalance of brass couplings, the appropriate level of balance should be chosen as required, and after the product is manufactured and installed on the machine, on the balance (correction) plane specified in the brass coupling, Plastic Brass Push in Coupling by adding or reducing the appropriate quality of the method to achieve the balance level requirements. This process is called balance correction, the short term balance.