What Are the Factors That Affect The Safety Pin Drum Gear Coupling?

The essence reason for tooth bonding is that the gear coupling material itself has insufficient hardness, and the key process to enhance the hardness of the crowned teeth coupling material is the quenching heat treatment process. If the heat treatment process is not in place, it will lead to a decrease in the service life of the gear coupling. On the other hand, if the axial deviation displacement during the installation of the gear joint coupling exceeds a reasonable range, it can also lead to incomplete meshing of the internal and external teeth of the teeth-shaft coupling during long-term operation at high speeds and high torques, seriously affecting the service life of the gear coupling. The vibration reduction performance of drum tooth coupling depends on the toughness of the tooth contact surface, thereby eliminating and reducing the mutual impact force of teeth during vibration. Good heat treatment process not only improves the hardness of the tooth surface but also increases the toughness of the tooth surface, greatly improving the service life of the gear coupling. When overloaded, the safety pin is cut off and torque transmission stops. At this time, the outer and inner teeth will move axially under pressure, and the pressure switch will be activated to cut off the motor function.

In transmission devices with severe uneven operation and assembly overload, gear type coupling with safety pins are recommended as the best choice. The inner and outer teeth of the drum shaped gear coupling may deform due to long-term running in use and high rotational speed, causing the gear coupling itself to be heated. The forged steel parts of the drum shaped gear coupling have high heat resistance. When the temperature is above 480 ° C to 540 ° C, ordinary carbon steel and low alloy steel will quickly oxidize, and the formed oxide skin cannot protect the metal underneath the oxide skin. If drum tooth coupling are exposed to such high temperature environments for a long time, they will gradually turn into metal oxides.

Therefore, choosing excellent materials and sound heat treatment processes are crucial for the service life of gear couplings.