Steering oil tank with pressure adjusting function

Abstract

The invention discloses a steering oil tank with a pressure adjusting function. The steering oil tank with the pressure adjusting function comprises an oil filling cover, a tank body, a filter element assembly, a valve seat, a pressure valve and a vacuum valve, the oil filling cover is installed on the top of the oil tank and connected with the tank body in a threaded mode, the pressure valve is arranged on the oil filling cover, and it is guaranteed that the pressure valve is closed for a long time in the working process of a steering system through a pressure valve spring; the oil tank is in a closed state and has certain pressure when working normally; when the pressure in the steering oil tank exceeds a set value, the pressure valve overcomes the pre-pressure of the pressure valve spring and releases the pressure to ensure the safe operation of a steering system; a vacuum valve is arranged on the oil filling cover, it is guaranteed that the vacuum valve is closed for a long time in the working process of the steering system through a vacuum valve spring, when the internal pressure is low, the vacuum valve is opened, the pressure in the tank body is balanced, normal flowing of oil of the steering system is guaranteed, and steering air suction is avoided. According to the steering oil tank, the problems of oil leakage and oil steam overflow of the vent hole are solved, the steering oil pumping quantity is improved, and oxidation corrosion of machine parts is avoided.

Description

technical field [0001] The invention relates to a steering oil tank with a pressure regulating function, which belongs to the technical field of automobile steering systems. Background technique [0002] The power steering pump in the current truck hydraulic steering system basically uses a vane pump, which has poor self-priming ability. When the steering system of the whole vehicle is arranged, the position of the steering oil tank is higher than that of the pump (position difference > 200mm ) depends on the weight of the oil to ensure the supply of oil to the steering pump. Therefore, increasing the appropriate pressure in the steering oil tank can better ensure the supply of the steering oil pump, avoid the air suction caused by uphill and downhill and oil sloshing during the operation of the vehicle, and improve the safety and stability of the steering system in the working process. Extend the service life of the entire steering system. [0003] At present, in the a...

AI Technical Summary

Problems solved by technology

However, oil spillage, oil leakage and oil vapor overflow in the vent hole of the power steering oil tank are common. complain

At present, oil tank manufacturers have been improving and optimizing the ventilation of the oil tank, such as the current oil-gas separation tank cover and the lower exhaust junction. Although the failure of the oil tank vent hole has been improved, it has not yet been effectively resolved.

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