1. Intrusion into the oil tank of the Rexroth hydraulic pump from the outside
1. The oil tank of Rexroth hydraulic pump should pay attention to dust-proof sealing, and install an air filter on the top of the oil tank and figure out the atmosphere, so that the air can be filtered before entering the oil tank.
2. The air filter is often used as the oil filling port, and there are standard parts for sale. It can be equipped with a copper mesh oil filter of about 100 mesh to filter the oil added to the fuel tank. It can also be filtered with a paper core, which has better effect, but the ability to figure out the atmosphere is poor, so the capacity of the paper filter core should be larger. .
3. In order to prevent the dirt that invades the oil tank from being sucked into the pump, a separator should be installed in the oil tank of the Rexroth hydraulic pump to separate the oil return area and the oil suction area. Through the partition, the time for the oil to return to the oil tank can be extended, preventing the oil from being oxidized and degraded; on the other hand, it is also conducive to the precipitation of dirt. The height of the partition is 3/4 of the height of the oil level.
4. The bottom plate of the fuel tank is inclined. The inclination of the bottom plate depends on the size of the fuel tank and the viscosity of the oil used, generally 1/64/—1/24. A drain plug is set at the lowest part of the bottom of the fuel tank, so that the dirt accumulated at the bottom of the fuel tank can be removed.
5. The distance between the oil suction pipe and the highest point of the bottom plate should be more than 150mm to prevent dirt from being sucked in. 2. Reduce the generation of dirt in the Rexroth hydraulic pump
1. Prevent the generation of condensation water in the fuel tank. An air filter with a large enough capacity must be selected so that the heated air at the top of the tank can be quickly discharged without condensation on the cold tank cap and falling into the tank; on the other hand, a large-capacity air filter Or ventilation holes, which can eliminate the difference between the space on the top layer of the fuel tank and the atmospheric pressure, and prevent the dust from being brought in from the outside when the top layer is lower than the atmospheric pressure.
2. The use of lubricating oil with good anti-rust performance can reduce the generation of wear objects and prevent embroidery of the Rexroth hydraulic pump.
