Environmental-friendly type high-pressure three-plunger oil-free water pump

Abstract

The invention belongs to the technical field of pumps, in particular to an environmental-friendly type high-pressure three-plunger oil-free water pump. An eccentric seat is sleeved on a motor shaft, abearing is sleeved on a convex shaft which is eccentrically arranged on the eccentric seat, an external hexangular block is sleeved on the bearing, three cushion blocks are evenly distributed on theexternal surface of the external hexangular block at intervals, a plunger and a return spring are sequentially arranged in three plunger holes which are radially distributed between the cushion blocksand a pump head, the internal end of the plunger is connected with the external hexangular block, the external end of the return spring tightly supports against the internal wall of the pump head, the external surface of the plunger in a pump body is sleeved with a self-lubrication bush, the external end part of the plunger is sleeved with a water sealing bush, a water inlet and outlet pipeline corresponding to each plunger is respectively provided with a water inlet and outlet valve, the water inlet and outlet valve is communicated with a water inlet and outlet joint, and a pressure regulating valve is arranged on a water outlet pipeline of the pump body. The invention has simple structure, convenient installation and maintenance, high pressurization efficiency and oil-free design, avoids the damage of the pump body and environmental pollution caused by oil leakage, has environmental-friendly performance and is suitable for popularization and application in the field of plunger pumps.

Description

Technical field: [0001] The invention belongs to the technical field of pumps, in particular to an environment-friendly high-pressure three-plunger oil-free water pump. Background technique: [0002] High-pressure plunger pumps have a wide range of uses and have been widely used in various fields such as industry and life, such as high-pressure cleaners, high-pressure atomization systems, sewer dredging vehicles, hot and cold water cleaners, high-pressure water pumps, high-pressure pumps, carbon dioxide Pumps, high-temperature pumps, etc. At present, plunger pumps on the market use a large amount of various lubricating oils or greases for lubrication. For example, lubricating oil or lubricating oil is required for the up and down movement of the plunger in the pump There are many defects and deficiencies in this kind of pump body that needs to use lubricating oil or grease. The use of lubricating oil will cause a certain degree of pollution to the environment. Sealing measur...

AI Technical Summary

Problems solved by technology

[0002] High-pressure plunger pumps have a wide range of uses and have been widely used in various fields such as industry and life, such as high-pressure cleaners, high-pressure atomization systems, sewer dredging vehicles, hot and cold water cleaners, high-pressure water pumps, high-pressure pumps, carbon dioxide Pumps, high-temperature pumps, etc. At present, plunger pumps on the market use a large amount of various lubricating oils or greases for lubrication. For example, lubricating oil or lubricating oil is required for the up and down movement of the plunger in the pump There are many defects and deficiencies in this kind of pump body that needs to use lubricating oil or grease. The use of lubricating oil will cause a certain degree of pollution to the environment. Sealing measures should be taken for the parts of the pump body that are involved in lubrication. Installation and use bring some inconvenience, at the same time, it is also inconvenient to maintain, and also increases the cost of manufacturing and processing

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