LX Type Elastic Pin Coupling

      The elastic pin coupling is a pin made of several non-metallic elastic materials, which is placed in the flange hole of the two coupling halves. The coupling of the two coupling halves is realized by the pin. The coupling has a simple structure and is easy It is more convenient to manufacture, install, disassemble and replace the elastic element without moving the two couplings.
      The material of the elastic element (column pin) is generally nylon 6. It has the ability to compensate for the offset of the two axes in a slight amount. The elastic element is sheared during operation, and the working reliability is extremely poor. It is suitable for working conditions with high reliability requirements. For example, the drive shaft system of the lifting mechanism of the lifting appliance must not be used. It is not suitable for low-speed load-bearing and high impact and vibration drive shaft systems. For radial and angular Drive shafts with large deviations and low installation accuracy should not be used. Elastic pin coupling The pin in the shaft is in a shear and squeeze state during operation. The strength condition is to calculate the shear strength of the elastic pin cross section and the squeeze strength of the pin and the pin hole wall.
       The elastic pin coupling (GB5014-85) is suitable for various coaxial transmission systems. The torque is transmitted by the shear strength of the nylon rod cross section. The nominal torque is 160-160000N.M, and the working temperature is -20℃- 80℃. The structure is simple, with cushioning and shock absorption performance and a certain axis offset compensation ability, suitable for use in environments where noise is not controlled. Allowable compensation amount Radial 0.15-0.25mm Angle 0.5°.
       The shaft hole type is cylindrical (Y), conical (Z) and short cylindrical (J). The shaft hole and keyway are processed in accordance with the provisions of the national standard GB3852-83 "Coupling Shaft and Keyway Form and Size". The semi-coupling is made of precision casting, cast iron HT20-40, cast steel ZG35Ⅱ, shaft hole and keyway are drawn, and the pin is made of MC nylon b.
       1. The stress of the elastic pin coupling: due to the difference in heating between the inside and outside of the metal, the expansion is uneven, resulting in internal stress, called thermal stress. If the temperature is too high during annealing to cause graphite cross-section, it will be difficult to cut and overheat and deform during quenching. Decarburization causes soft spots on the surface of the workpiece, reducing the surface hardness, wear resistance and fatigue strength.
       2. Oxide skin of elastic pin coupling: 　
       3. Hard and brittle mesh carbide of elastic pin coupling: 　
       4. Decarbonization of the elastic pin coupling: Decarbonization refers to the phenomenon that all or part of the carbon on the steel surface is burned off.
       5. Overheating and overburning of the elastic pin coupling: Overheating means that after the steel exceeds the allowable temperature during heating, the grains grow thicker.