Service

1. Analyze the causes of pitting and peeling of reducer gears

a. Material, hardness and defects. The material of the gear does not meet the requirements; the main factor affecting the contact fatigue strength of the gear is the low hardness after heat treatment, which cannot guarantee the contact fatigue strength of the gear. In addition, defects on the tooth surface or inside are also one of the reasons for insufficient contact fatigue strength.

b. The gear accuracy is poor. Gear machining and assembly accuracy does not meet the requirements, such as poor meshing accuracy and poor motion accuracy. There is also too much error in the center distance of the housing of the arc gear.

c. The lubricating oil does not meet the requirements. The grade of lubricating oil used is wrong, the viscosity of the oil is low, and the lubricating performance is poor.

d. The oil level is too high. If the oil level is too high, the temperature of the oil increases, which reduces the viscosity of the lubricating oil, destroys the lubricating performance, and reduces the working thickness of the oil film.

2. Analysis of the reason for the reducer series shaft

a. It is due to the broken teeth that cause the input shaft to lose the axial restraint and the tandem shaft occurs.

b. The driven gear on the intermediate shaft is not tightly fastened to the shaft. In actual transmission, often due to insufficient interference between the driven gear and the intermediate shaft, the driven gear produces an axial series movement relative to the intermediate shaft, thereby causing the input shaft to move axially. Therefore, insufficient interference is the main reason for the tandem shaft of the reducer.

c. The steering of the reducer also has a certain influence on the serial shaft.

3. Analyze the reasons for the high temperature of the reducer oil

a. The lubricating oil is unqualified or used for too long.

b. Too much lubricating oil is not conducive to the heat dissipation of the mechanism in the gearbox.

c. The parts are damaged. The damage to the parts includes serious gear pitting, broken teeth, damage to the bearing cage, inner and outer rings, balls, and bearing locking or serious shaft deformation;

d. The outside of the box is covered by debris or dust. When things are stacked around the reducer or the surface of the body has not been cleaned for a long time, it may be covered by debris or dust, which may cause the heat dissipation of the reducer to be incomplete and cause the oil temperature to rise;

e. Blockage or failure of the cooling device. The cooling device is placed in a dusty workshop like the reducer. If the cooling device is blocked or the cooling device is broken due to long-term work without cleaning the internal pipeline, it will cause the oil temperature of the reducer to rise;

4. Normal maintenance and failure:

The usual maintenance is mainly: 1. Adjustment and commissioning during installation; 2. Regular inspection, high temperature inspection and oil quality test; 3. Regular oil replenishment and oil change.

The common faults are: 1. The reducer vibrates greatly; 2. There is noise; 3. The oil temperature is high; 4. The oil leaks; 5. The gear is damaged;