Under normal circumstances, if a gear reducer is operating under the rated load, theoretically, its temperature rise should not be affected by the ambient temperature. However, the reality is not so. It is still influenced by multiple factors such as the ambient temperature. Next, let’s elaborate in detail on the impact of temperature on the operation of the gear reducer.
First, the maximum operating temperature of the insulating material refers to the highest temperature point in the winding insulation during operation within the expected design life of the gear reducer. If the operating temperature exceeds the maximum operating temperature that the material can withstand for a long time, the aging speed of the insulating material will accelerate, and its service life will be significantly shortened. Therefore, during the operation of the gear reducer, temperature is one of the key factors determining its service life.
Secondly, the temperature rise refers to the temperature difference between the gear reducer and the surrounding environment, which is caused by the heat generated by the gear reducer itself. Temperature rise is an important indicator in the design and operation of the gear reducer, reflecting the degree of heat generation of the gear reducer. During operation, if the temperature rise of the gear reducer suddenly increases, it indicates that there may be a fault in the gear reducer, such as blocked air ducts or excessive load.
Furthermore, for a gear reducer in operation, its iron core will generate iron losses in the alternating magnetic field, copper losses will occur after the windings are energized, and there are some other stray losses, etc. All these will cause the temperature of the gear reducer to rise. But on the other hand, the gear reducer also has the ability to dissipate heat. When heat generation and heat dissipation reach equilibrium, the temperature no longer rises but stabilizes at a specific level. However, when heat generation increases or heat dissipation decreases, this balance will be broken, the temperature will continue to rise, the temperature difference will expand, and at this time, heat dissipation will increase, forming a new equilibrium at another higher temperature.
Finally, when the temperature of the gear reducer exceeds its maximum operating temperature, or the temperature rise exceeds the specified range, or although the temperature rise does not exceed the specified value but suddenly increases at low loads, all these situations indicate that the gear reducer has malfunctioned.