How do Rexroth piston pumps supply oil?

Create Date: 2024-8-30 12:03:23|Source: Rexroth/Rexroth

1. Straight shaft swash plate Rexroth piston pump is divided into two types: pressure oil supply type and self-priming oil supply type. Most of the pressure oil supply hydraulic pumps use oil tanks with air pressure, and there are also hydraulic pumps with oil replenishment sub-pumps to provide pressure oil to the oil inlet of the hydraulic pump. The self-priming hydraulic pump has a strong self-priming capacity and does not require external oil supply.

Second, the hydraulic oil tank with air pressure supply, after starting the machine every time, must wait for the hydraulic oil tank to reach the use of air pressure before operating the machinery. If the air pressure of the hydraulic oil tank is insufficient, it will cause the pulling off phenomenon between the hydraulic pump and the sliding whip, and cause abnormal wear and tear of the return plate and pressure plate in the pump body.

3. After 3000h of Rexroth piston pump for oil supply, the operator needs to check the Rexroth piston pump 1-2 times a day to check whether the sound of the hydraulic pump is normal. If it is found that the speed of the hydraulic cylinder drops or the car is stuffy, the oil replenishment pump should be dismantled and inspected, and the impeller edge should be checked for scratches and whether the gap of the internal gear pump is too large.

4. For self-priming Rexroth plunger pumps, the oil in the hydraulic oil tank shall not be lower than the lower limit of the oil standard, and a sufficient amount of hydraulic oil shall be maintained. The cleaner the hydraulic oil, the longer the service life of the hydraulic pump.
How do Rexroth piston pumps supply oil?

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