Slider coupling

Slider couplings are often used in common motors. In some cases, they can also be used to connect servo motors. The sliding of the slider is used to correct the relative displacement during use.Because the half-coupling and the intermediate disc form a moving pair and cannot rotate relative to each other, the angular velocity of the driving shaft and the driven shaft should be equal.However, when working with relative displacement between the two shafts, the middle disk will generate a large centrifugal force, which will increase the dynamic load and wear.Therefore, pay attention to the working speed not greater than the specified value when selecting.This kind of coupling is generally used for speed n<250r/min, the rigidity of the shaft is relatively large, and there is no severe impact.

The slider coupling is also known as the metal cross slider coupling. Its slider is in the shape of a ring and is made of steel or alloy. The cross slider coupling is suitable for transmissions with low speed and large transmission torque.The slider coupling is composed of two shaft sleeves and a slider.As a torque-transmitting element, the slider is usually made of engineering plastics. In this case, other materials, such as metal materials, can be selected.

The sliding block coupling can be used for additional load between the shafts during the automatic control of the motor. The fixed body adopts splines to slide, and the inner and outer sleeve of the sliding body can slide relatively in the axial direction; this coupling can achieve Slippage and rotation are integrated; in the case of equal rotation reach the diameter, the size is much smaller than the cross shaft.Improve the uniformity of load distribution on the working surface, and can transmit larger torque, but the elasticity is slightly reduced.Therefore, pay attention to the working speed not greater than the specified value when selecting.This kind of coupling is generally used for speed n<250r/min, the rigidity of the shaft is relatively large, and there is no severe impact.

The material of the slider coupling parts can be 45 steel, and the working surface needs to be heat treated to increase its hardness; Q275 steel can also be used when the requirements are low, without heat treatment.In order to reduce friction and wear, oil should be injected from the oil hole of the middle plate for lubrication during use.Because the half-coupling and the intermediate disc form a moving pair and cannot rotate relative to each other, the angular velocity of the driving shaft and the driven shaft should be equal.However, when working with relative displacement between the two shafts, the middle disk will generate a large centrifugal force, which will increase the dynamic load and wear.