High-pressure plunger pump with automatic oil distributing system

Abstract

The invention provides a high-pressure plunger pump with an automatic oil distributing system. The high-pressure plunger pump is characterized in that an oil inlet and an oil outlet are positioned at the bottom part of a plunger valve cylinder, are consistent in dimension and form and are respectively provided with a large-diameter end and a small-diameter end; the large-diameter end of the oil inlet is communicated with the valve cylinder; the small-diameter end of the oil outlet is communicated with the valve cylinder; a reducing slope is positioned between each large-diameter end and the corresponding small-diameter end; and steel balls are arranged in the large-diameter ends at the reducing slopes. According to the high-pressure plunger pump with the automatic oil distributing system, the oil distribution of a whole oil channel system of a pump body can be automatically adjusted, and frictional resistance caused by the fact that some plunger pumps are provided with oil distributing discs below valve bodies can be removed; the plunger pump is high in leakproofness, so that the requirement of the pump body on quick oil outlet at high pressure can be met, and the performance of the pump body can be effectively improved; and in addition, when serving as a horizontal pump, the plunger pump has the advantages that the height of the pump body is reduced and the installation is more stable.

Description

technical field [0001] The invention relates to an axial plunger pump, in particular to a high-pressure plunger pump with a self-distributing oil system. Background technique [0002] Piston pump is one of the important devices of engineering construction hydraulic equipment. Because the traditional axial piston pump has certain defects, such as: the oil suction and oil discharge mechanism includes many parts, not only occupies a large volume, but also is difficult to install, has a high failure rate, and has poor safety performance. For this reason, the applicant submitted "a plunger pump with simple structure", "combined simple plunger Patent applications for utility models and inventions such as "plug pump" and "a plunger pump with double swash plate structure". Among them, the former two have been approved and authorized, and the latter utility model and invention patent are currently under review. The above-mentioned patented technology improves the structure of the...

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Problems solved by technology

However, in view of the fact that the applicant has devoted himself to the research and long-term practice of the plunger pump for many years, in the uninterrupted persistent test, he believes that on the basis of his own patented technology, through structural improvement again, the oil outlet of the plunger pump will be improved. There is still room for further improvement in terms of pressure

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