Classification of diaphragm couplings and problem solving methods

　　The diaphragm coupling is a diaphragm coupling composed of at least one diaphragm and two shafts.The diaphragm is connected to the sleeve with a pin, which usually does not loosen the gap between the diaphragm and the sleeve.Some manufacturers provide two or three diaphragms with one or two rigid elements in the middle, each side connected to the sleeve.The diaphragm has high torque stiffness and high sensitivity, zero rotation gap, and the same characteristics as ordinary rotation.The radial, angular and axial deviation of the stainless steel diaphragm.Diaphragms are often used in servo motors.

　　The diaphragm coupling is driven by an elastic element and a metal diaphragm to transmit torque.Because the bolt, diaphragm and half coupling rub against each other, the coupling needs to be quenched and tempered to ensure the use of the coupling.The quenching and tempering treatment of the coupling needs to harden the entire part of the workpiece, so that the workpiece is obtained by finely stacked quenched martensite.The diaphragm coupler is tempered at high temperature to obtain a microstructure mainly composed of uniformly tempered sorbite.It is impossible for a small factory to conduct a metallographic analysis of every furnace.Usually, it is only used for hardness testing.In other words, the hardness after quenching must reach the quenching hardness of the material, and the hardness after tempering should be checked according to the requirements of the drawings.

　　There are four reasons for the abnormality of the diaphragm coupling, as follows:

　　1.The gap between the two half couplings is too wide, causing the diaphragm to bear a large axial force, and if the bolts of the winding hole or the stranded wire are worn out, it will cause abnormal noise;

　　2. If the axial deviation of the two half couplings is too large or the deflection angle is too large, vibration and abnormal noise will be generated during the operation of the equipment.

　　3. When the speed of the active end and the passive end are different, vibration and abnormal noise will also be generated when the equipment is running.

　　4. The motor speed code disk is faulty, which leads to the speed of the motor and the abnormal coupling of the diaphragm.

　　Diaphragm coupling is divided into metal diaphragm coupling and non-metallic diaphragm coupling.The metal diaphragm coupling can be divided into diaphragm coupling, roller chain coupling and serpentine coupling.Wave tube coupling; non-metallic diaphragm coupling can be divided into star-shaped elastic coupling, plum blossom diaphragm coupling, elastic bushing coupling, bushing coupling, and tire coupling.The characteristics and application of several commonly used diaphragm couplers are introduced, and the application of Tianda couplers in Pau city is introduced.

　　Plum blossom coupling: The plum blossom coupling is processed through turning, milling, broaching and other processing methods, and then undergoes overall heat treatment.In order to ensure sufficient mechanical strength, there are also claw plates on the market that are castings, which can be mass-produced to avoid processing losses.So the price is much lower than mechanical processing.But the performance of the casting is not very good.Don't use it on important occasions.Under high-speed or high-load conditions, the claw teeth of the casting are prone to jump (claw teeth fall off).Elastomers are usually made of engineering plastics or rubber.The life of the coupling is the life of elasticity.Obviously, elasticity is stretched because it is under pressure.The service life of the general elastomer is 10 years.Since elasticity has the function of buffering and damping vibration, elastic mechanics is used more in the case of strong vibration.The performance temperature of the elastomer determines the operating temperature of the coupling, which is generally between -35 and +80 degrees.

　　Diaphragm is widely used in shaft transmission of various mechanical equipment, such as pumps (especially high-power, chemical pumps), fans, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, mining machinery, aviation (helicopter), High-speed power transmission systems, steam turbines, power mechanical transmission systems, tracked vehicles, etc.The high-speed, high-power mechanical transmission system of generator sets has been widely used in high-speed transmission after dynamic balance.

　　Diaphragm coupling: Several groups of diaphragms (stainless steel plates) are alternately connected by two half coupling bolts.Each group of diaphragms is composed of multiple parts, and the diaphragms are divided into connecting rods and different shapes.Whole.The diaphragm coupling relies on the elastic deformation of the diaphragm to compensate for the relative displacement of the two shafts.It is a high-performance elastic coupling for metal strong parts.It does not require oil, has a compact structure, high strength and long service life.It has no rotation gap, is not affected by temperature and oil pollution, and has the characteristics of acid resistance, alkali resistance and corrosion resistance.It is suitable for shafting transmission under high temperature, high speed and corrosive medium working conditions.

　　The content of the diaphragm coupling is described above.Hope it helps you.Our website also organizes more information about coupling.I want to know more friends, remember to collect.