A hydraulic booster pump

Abstract

The invention discloses a hydraulic booster pump. The hydraulic booster pump comprises a cylinder body in which a piston is connected in a sliding manner, wherein a left end cover is mounted at the left end of the cylinder body, and a right end cover is mounted at the right end of the cylinder body; a plunger connected with the piston is connected in the left end cover in a sliding manner; a valvehole is arranged in the right end cover in a vertical direction, a first oil opening, a second oil opening and a third oil opening are sequentially arranged in the right end cover from the top to thebottom, and a valve core is connected in the valve hole in a sliding manner; on the right end cover, an upper end cover is mounted at the upper end of the valve hole, and a lower end cover is mountedat the lower end of the valve hole; a first shoulder, a second shoulder and a third shoulder are sequentially arranged on the side surface of the valve core from the top to the bottom, an upper control cavity is formed between the first shoulder and the upper end cover, and a lower control cavity is formed between the third shoulder and the lower end cover; and a pilot-operated check valve assembly used for controlling the upward and downward movement of the valve core is further arranged in the right end cover. The booster pump is simple in structure and does not need electric control.

Description

technical field [0001] The invention relates to the technical field of booster pumps, in particular to a hydraulic booster pump capable of reliable automatic and continuous boosting. Background technique [0002] The hydraulic booster pump is an ultra-high pressure hydraulic component that amplifies the hydraulic pressure by using the principle that the two ends of the piston have different acting areas and the same force, and the hydraulic booster pump can increase the low pressure to 200MPa and above. At present, the traditional hydraulic booster pump used in China controls the reciprocating motion of the booster pump to continuously output high pressure through the continuous reversing of the electromagnetic reversing valve. The structure is complex, and complex displacement sensors and electronic control components need to be installed. Inconvenient to carry, difficult to use in flammable and explosive occasions and portable machinery, such as natural gas compression sub...

AI Technical Summary

Problems solved by technology

At present, the traditional hydraulic booster pump used in China controls the reciprocating motion of the booster pump to continuously output high pressure through the continuous reversing of the electromagnetic reversing valve. The structure is complex, and complex displacement sensors and electronic control components need to be installed. Inconvenient to carry, difficult to use in flammable and explosive occasions and portable machinery, such as natural gas compression sub-stations, garbage compression stations, oil mines, coal injection, etc. have explosion-proof requirements, and the objective requirement is that the hydraulic booster pump can meet the needs of personnel without close distance Intervention can change direction by itself and also meet the requirements of explosion protection

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