Hydraulic oil tank and method for improving circulation quality of hydraulic oil in hydraulic system

The invention discloses a hydraulic oil tank and a method for improving the circulation quality of hydraulic oil in a hydraulic system. The hydraulic oil tank comprises a tank body, a longitudinal partition plate divides an inner cavity of the whole tank body into an oil return cavity and an oil suction cavity, a gap is formed between the longitudinal partition plate and the bottom edge of the tank body, and a hole channel used for communicating the oil return cavity with the oil suction cavity is formed in the longitudinal partition plate; an interval is formed between the upper edge of the hole channel and the top end of the longitudinal partition plate, an oil return filter cylinder of the oil return filter is inserted into the oil return cavity, and a transverse partition plate used for guiding oil return liquid is arranged around the hole channel in the oil return cavity. The invention provides a hydraulic oil tank which is optimized in structure and beneficial to sufficient circulation of oil. 一种液压油箱及提高