hydraulic oil tank

Hydraulic oil tank type

According to the structure, it can be divided into integral hydraulic oil tanks and separate hydraulic oil tanks; According to shape, it can be divided into rectangular hydraulic oil tanks and cylindrical hydraulic oil tanks; Check whether the hydraulic oil tank level is connected to the atmosphere. It can be divided into closed hydraulic oil tanks and open hydraulic oil tanks.

The closed hydraulic oil tank is completely isolated from the atmosphere, and the entire hydraulic oil tank is sealed. An airbag or spring piston is installed inside it to apply pressure to the oil in the hydraulic oil tank. The closed hydraulic claw oil tank is characterized by good oil suction conditions of the hydraulic pump, but the oil drain pipe and oil return pipe of the hydraulic transmission system must bear back pressure, which is commonly used in the hydraulic transmission system of aircraft or higher altitude areas or underwater machinery.

The separated hydraulic oil tank is mainly composed of a box body, a box cover, an oil suction pipe, an air filter, a return pipe, a level gauge, a partition and a filter. The partition and partition in the fuel tank are mainly used to block the entry of settled pollutants into the suction pipe, the oil drain valve is used to discharge settled pollutants, and the air filter has both ventilation and refueling functions.

The integral hydraulic oil tank utilizes the cavity of the main engine as the hydraulic oil tank. Its characteristics are compact structure, easy to recover leaked oil, but it increases the complexity of the host, makes maintenance inconvenient, and has poor heat dissipation conditions. The separated hydraulic oil tank is set separately from the main engine, making it flexible to arrange and easy to maintain, reducing the impact of hydraulic oil tank heating and vibration on the working accuracy of the main engine. Therefore, it has been widely used in walking and fixed operation machinery systems.