The use of elastic pin coupling

Published: 2021-03-14

The elastic coupling is a kind of coupling that is relatively used nowadays. There are elastic pin couplings, elastic pin gear couplings, elastic sleeve pin couplings, plum blossom elastic couplings, and star-shaped couplings. Flexible couplings, etc. Rigid couplings have no elastic components and do not have the function of damping and buffering. Elastic couplings are suitable for connecting two coaxial transmission shafts. They can compensate for the relative deviation of the two shafts, damping, and resist With abrasion and cushioning performance, the elastic coupling has a relatively large structure, simple and reasonable, convenient maintenance, symmetrical and interchangeable on both sides, long life, allowing large axial movement, and has the properties of cushioning, shock absorption, and wear resistance.

Flexible couplingIt is suitable for the transmission shaft system connecting two coaxial lines. It has compensation for the relative deviation of the two shafts, shock absorption, wear resistance and cushioning performance. The elastic coupling has a large structure, simple, reasonable, convenient maintenance, symmetrical and interchangeable on both sides, Long life and other performance.

Couplings are widely used in shaft transmission of various mechanical devices, such as water pumps (especially high-power, chemical pumps), fans, compressors, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, mining machinery, Metallurgical machinery, aviation, naval high-speed power transmission systems, steam turbines, piston-type power mechanical transmission systems, crawler vehicles, and high-speed, high-power mechanical transmission systems of generator sets are commonly used in high-speed transmission shaft systems after dynamic balance.The diaphragm coupling is composed of at least one diaphragm and two shaft sleeves.The diaphragm is fastened to the shaft sleeve with a pin and generally does not loosen or cause backlash between the diaphragm and the shaft sleeve.

Diaphragm couplings are now receiving more and more attention from customers. Compared with gear couplings, diaphragm couplings are well-sealed, have low noise, do not require lubrication, and are easy to maintain and receive more and more praise. And part of it can replace gear couplings.In countries with developed industries in the world, the use of diaphragm couplings has become very common. In practice, there are more intermediate shaft type double diaphragm couplings, mainly because they can effectively compensate for the offset between the two axes. Therefore, the production of domestic coupling diaphragms has also attracted more and more attention. The coupling diaphragms are selected from high-quality stainless steel materials, with sophisticated technology, and the products are beautiful and practical, and have long service life.

During the effective service life of the diaphragm coupling, the wedge-shaped clearance surfaces that are inclined to each other need to be maintained, lubricated, and discharged from the large port into the small port.The two surfaces must have sufficient relative movement speed, the fluid must have sufficient viscosity, and sufficient oil must be supplied.In the maintenance process, the most important thing is to grasp the basic category of hydrodynamic lubrication, which is also the theoretical basis of sliding bearing design.

The diaphragm coupling can actively compensate the axial, radial and angular offset caused by the motor, as well as the influence caused by factors such as manufacturing error, installation error, bearing deformation and temperature rise.Diaphragm coupling is a metal elastic element in flexible coupling. The advantages of driven torque transmission, elastic vibration, no noise, and no lubrication are the ideal products to replace gear couplings and general couplings.

The diaphragm coupling bolt connection does not need to be threaded on the connecting piece, the use is not restricted by the connecting piece, the structure is simple, and the disassembly and assembly are convenient.Stud bolts can be used in occasions where bolts cannot be used due to structural restrictions, but a compact connection structure is required.The bolt connection does not have a nut and has a smooth exposed surface, but it is not suitable for frequent disassembly and connection to avoid damage to the threaded hole.

The composition of the elastic pin coupling and its component characteristics: The elastic coupling contains the elastic compound of pre-compressed rubber, which can provide extra strength and extend the service life. The coupling can accommodate all types of deviations. The wheel hub is made of high-strength aluminum alloy , Both lightweight and corrosive, the rubber component is mainly used for shock absorption, making the power transmission smooth and quiet, thereby protecting the driving force and driving the machine.