Service life of clamping shell coupling:

The tire body of the clamping shell coupling is cast by rubber and pressing, and the rubber inside is composed of cloth and steel ring. The wear-resisting degree of the tire body of the coupling transmission parts mainly depends on the amount of cloth and steel ring. Another important factor is the quality of the glue, which is the decisive factor affecting the service life of the coupling. The domestic standard clamp shell coupling tire body uses more than 2 grade rubber, and some manufacturers use the secondary use of the black solid rubber, through solid melting so as to cooperate with the steel ring and cloth; Secondly, it is clearly stated in the standard that the tire body with an outer diameter of > 150 has 3-5 steel rings and 2 layers of thick cloth dissolved in the tire body. Some manufacturers just use 2 steel rings dissolved in the tire body, which will greatly reduce the wear resistance of the tire body, thus affecting the service life of the coupling.

Reasons for abnormal clamping shell coupling:

The reason for the abnormal clamping shell coupling is that the width of the interval between the two halves of the coupling is too high, so that the diaphragm will be subjected to a large axial force, and the stranded hole or the stranded bolt wear, resulting in abnormal noise; The axial deviation of the two-half coupling is too large or the deflection Angle is too large, which will also cause vibration and abnormal sound during the operation of the equipment; When the speed difference between the active end and the passive end is different, it will also cause vibration and abnormal sound when the equipment is running. The motor speed code plate is faulty, resulting in the speed of the motor is fast and slow, and the clamping housing coupling abnormal sound. Improper selection of coupling transmission parts will affect the operation of mechanical and electrical equipment, and even cause equipment failure. The selection of coupling should be based on the working performance of the equipment, the working environment and many other factors, to choose the suitable site coupling. Coupling will not appear the output shaft sleeve keyway and key damage phenomenon, equipment operation without vibration, noise and impact, all operating indicators are normal, equipment failure rate is significantly reduced.

The working principle of clamping shell coupling:

The working principle of the clamping case coupling is actually driven by the rotation of the prime mover to rotate the swing arm, so it is thrown out under the action of centrifugal force. Now, with the increase of the motor speed, the positive pressure of the three centrifugal friction blocks installed on the swing arm on the friction wheel is also increasing, and the friction torque gradually increases and drives the load to run. Under severe load or gridlock conditions, the load moment is greater than the friction moment, the centripetal force of the centrifugal friction block is reduced, leading to the reduction of the sliding block force, and the coupling plays the role of overload protection. When the load of the equipment increases or decreases abruptly, the friction block and the friction wheel produce intermittent relative motion, resulting in the formation of alternating impact load, repeated impact coupling output shaft sleeve and the input shaft of the reducer with the joint surface, as the heavy pound hammer countless times to knock the joint surface, thus damaging the key pin of the joint surface.