Slider coupling

Slider couplingThe slider type is similar to the cross type structure, the difference is that the middle cross slider is a square slider, and the middle slider is used to slide in the corresponding radial grooves on both sides of the end surface to realize the connection of the two transmission halves.This product has high noise, low efficiency and fast wear. Generally, it is not used as much as possible. It is only used when the speed is very low, such as ball mills.

Allowable compensation amount: axial △ x=1~2mm, radial △ y ≤ 0.2mm, angular △α≤ 40'. 

The material of the sliding block 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.Therefore, it should be noted that the working speed should not be greater than the specified value when selecting.This kind of coupling is generally used at a speed n<250r/min, where the shaft has greater rigidity and no severe impact.

The sliding block is connected with the shaft sleeves on both sides by 90° oppositely distributed clamping slots on both sides, so as to achieve the purpose of torque transmission.The sliding block and the shaft sleeve are matched with a slight pressure, which enables the coupling to run with zero clearance during the operation of the equipment.As the use time increases, the slider may lose its recoilless function due to wear, but the slider is not expensive and easy to replace, and it can still play its original performance after replacement.It is often used in common motors, and can also be used to connect with servo motors in some occasions, and the relative displacement can be corrected by sliding the slider during use.Because the resistance to the relative displacement is the friction between the slider and the sleeve, the bearing load between them will not increase due to the increase in the relative displacement.