Pressure of circular arc gear pump;   Ultimately, the head should be used

Good treatment of leakage in the circular arc gear pump will not affect its use. Wear of internal parts of the circular arc gear pump and internal parts of the oil pump can cause internal leakage. The leakage area between the floating shaft sleeve and the gear end face is large, which is the main part causing internal leakage. This part of the leakage accounts for about 50% to 70% of the total internal leakage. The volumetric efficiency of the gear pump with worn internal leakage decreases, and the output power of the circular arc gear pump is lower than the input power. All of its losses are converted into heat energy, which can cause the oil pump to overheat. If the joint plane is tightly pressed, the floating shaft sleeve may experience slight movement during operation, causing wear and tear, resulting in slow or impossible lifting of the agricultural tool. Such floating shaft sleeves should be replaced or repaired. The circular arc gear pump gear adopts a double circular arc sine curve tooth profile. Compared with involute gears, its outstanding advantages are that there is no relative sliding of the tooth profile during the gear meshing process, so the tooth surface is not worn, the operation is smooth, there is no liquid phenomenon, low noise, long service life. This pump breaks free from traditional constraints, ushering in a new era in the production and use of gear pumps.