Slider coupling

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 central slider.As a torque-transmitting element, the center slider is usually made of engineering plastics. In this case, other materials, such as metal materials, can be selected.

The SL slider coupling is composed of two shaft sleeves and a center slider. The center slider is usually made of engineering plastic as a torque transmission element. In the case of other materials, such as metal materials, the center slider passes through both sides. The 90° relative distribution of the card slots and the shaft sleeves on both sides are connected together, so as to achieve the purpose of transmitting torque. The center slider and the shaft sleeve are anastomosed with a slight pressure. This pressure can make the coupling in the equipment There is zero clearance during operation. As the use time increases, the slider may lose its recoil-free function due to wear, but the center slider is not expensive, and it is easy to replace, and it can still play its original function after replacement. performance.

Slider couplings are often used in general commonly used motors. In some occasions, they can also be used to connect servo motors. During use, the relative displacement is corrected by the sliding of the center slider. Because the half coupling and the intermediate disk form a moving pair, it cannot Relative rotation occurs, so 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 intermediate disk will generate a large centrifugal force, which will increase the dynamic load and wear. So choose It should be noted that the working speed should not be greater than the specified value. 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.

Structural features

The material of the coupling parts can be 45 steel, thereby increasing the dynamic load and wear.Therefore, when selecting, pay attention that its working speed should not be greater than the specified value.This kind of coupling is generally used at a rotation speed n<250r/min, where the shaft stiffness is relatively large and there is no severe impact.

●The structure of the slider coupling is similar to that of the cross slider coupling. The difference is that the middle cross slider is a square slider. The middle slider is used to slide in the corresponding radial grooves on the end faces of the half couplings on both sides. In order to realize the coupling of the two halves.This coupling has high noise, low efficiency and fast wear. Generally, it is not used as much as possible. It is only used for occasions with very low speed. The slider coupling specified in this standard is suitable for oil pump devices or other occasions with small transmission torque.Compensate the relative offset of the two axes, shock absorption and cushioning performance; its working temperature is -20~70°C.The nominal torque transmitted is 16~500N.m.

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

特性

The material of the sliding block coupling parts can be 45 steel, and the working surface needs to be heat treated to improve its hardness; Q275 steel can also be used when the requirements are lower, 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, 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 center 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 center slider is not expensive and easy to replace, and it can still play its original performance after replacement.Slider couplings are often used in common motors. In some cases, they can also be used to connect servo motors. The relative displacement can be corrected by the sliding of the center 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.

Hangzhou Slider Coupling　Hangzhou Slider Coupling