Multipurpose axial ball plug-type water hydraulic motor or pump

Abstract

The invention discloses a multipurpose axial ball plug-type water hydraulic motor or pump. By a superstrong water absorbent technology and a steel wire rope technology, an end surface and / or excircular static sealing surface is sealed in a clearance way by a steel wire rope-framework superstrong water absorbent O-shaped seal ring while being sealed by a steel wire rope-framework rubber / plastic O-shaped sealing ring; a lubricating and guiding part adopts a pure water lubricating and guiding combined ring / superstrong water absorbent combined device. Sealing and lubrication of a plunger and a shaft are achieved by setting reciprocating and rotating inserted or superimposed V-shaped sealing devices for a hole and the shaft respectively; a plunger hole / plunger pair, a steel ball / plunger pair, asteel ball / end cam disc pair, a cylinder / distribution end cap pair and various other friction pairs are the friction pairs adopting novel structures; a number of innovative technologies such as combined load bearing of a rolling bearing / sliding bearing with a sealing ring and a pull rod are adopted; problems such as sealing and lubrication are solved; the displacement and the torque are increased; the multipurpose axial ball plug-type water hydraulic motor or pump is applicable to water hydraulic industry.

Description

technical field [0001] The invention belongs to the technical field of hydraulic pressure, and in particular relates to a multi-action axial ball plug type water hydraulic motor or pump. Background technique [0002] Literature published by the inventor: He Wangcheng. Maintenance examples of imported thermosetting plastic injection machines [J]. Engineering Plastics Application, 1998, 26 (5): 22-23. It can be seen that as early as 20 or 30 years ago, the proportion of Oil-hydraulic transmission and control technology, including pressure flow control axial piston variable pump, is already an advanced technology; however, as we all know, hydraulic oil has two serious defects of pollution and flammability, which not only lead to hydraulic transmission in all ecological construction requirements Higher fields, such as agriculture, forestry, animal husbandry and fishery, light industry food, medicine and health, electronic engineering, shipbuilding engineering, marine industry an...

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Problems solved by technology

[0002] Literature published by the inventor: He Wangcheng. Maintenance examples of imported thermosetting plastic injection machines [J]. Engineering Plastics Application, 1998, 26 (5): 22-23. It can be seen that as early as 20 or 30 years ago, the proportion of Oil-hydraulic transmission and control technology including pressure and flow control axial piston variable pump is already an advanced technology; however, as we all know, hydraulic oil has two serious defects of pollution and flammability, which not only lead to hydraulic transmission in all ecological construction requirements Higher fields, such as agriculture, forestry, animal husbandry and fishery, light industry, food, medicine and health, electronic engineering, shipbuilding, marine industry, and water conservancy engineering, are difficult to popularize and apply; Industries such as petrochemical, metallurgy, mechanical thermal processing, and underground coal mines are also difficult to popularize and apply; therefore, under the call of the industry 4.0 era, traditional water (including seawater and fresh water, the same below) hydraulic transmission and control technology has once again attracted attention at home and abroad. The attention of people of insight; however, because the viscosity of water is lower than that of mineral oil, the sealing and lubrication of water hydraulic components such as multi-acting axial ball-plug water hydraulic motors or pumps have higher requirements and are more difficult; related to this For information, you can refer to the literature: Liu Yinshui. Fundamentals of water hydraulic transmission technology and engineering application [M]. Beijing: Machinery Industry Press, 2013: 101-164; from this literature and related patent information, it can be known that so far, multi-acting axial ball Plug-type water hydraulic motor or pump has not yet been developed at home and abroad

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