Thrust water hydraulic cylinder

Abstract

The invention discloses a thrust water hydraulic cylinder which adopts a super absorbent technology and a steel wire rope technology. The end face and / or outer circular static seal face are / is sealedby rubber / plastic O-shaped seal rings with steel wire rope skeletons, and at the same time, is subjected to clearance blocking by super absorbent O-shaped seal rings with steel wire rope frames; and lubrication guide parts adopt pure water lubrication guide combined ring / super absorbent combined devices. Cartridge or superimposed V-shaped sealing devices separately for reciprocating holes / holes / shafts are also provided for sealing and lubrication of pistons / plungers / piston rods; forced-seal wedge-shaped annular grooves are deformed by using high pressure or ultra-high pressure water and gaps between an inner hole with a screw groove bush and the outer circle of a plunger is reduced for forced seal; the plunger with a screw groove is lubricated by using pressure water; and a split sleeve with pins is used for guaranteeing sealing through cooling, pressure-stabilizing, speed regulation and purification, and various innovative technologies are adopted. Sealing and lubrication and other problems are solved; and the thrust water hydraulic cylinder is applied to water hydraulic industries including high pressure and super high pressure systems.

Description

technical field [0001] The invention belongs to the field of hydraulic technology, in particular to a thrust water hydraulic cylinder. 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 leads to the application of hydraulic transmission in all fields with high ecological construction requirements, such as agriculture, forestry, animal husbandry and fishery, light industry food, medicine and health, electronic engineering, ship engineering, marine engineering, etc. It is difficult to popularize a...

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Problems solved by technology

However, as we all know, hydraulic oil has two serious defects of pollution and flammability, which not only leads to the application of hydraulic transmission in all fields with high ecological construction requirements, such as agriculture, forestry, animal husbandry and fishery, light industry food, medicine and health, electronic engineering, ship engineering, marine engineering, etc. It is difficult to popularize and apply in industries such as industry and water conservancy engineering; it is also difficult to popularize and apply hydraulic transmission in high-temperature open flames and flammable and explosive environments, such as petrochemical, metallurgy, mechanical thermal processing, and coal mine underground industries.

Therefore, under the call of the industry 4.0 era, the traditional water (including seawater and fresh water, the same below) hydraulic transmission and control technology has once again attracted the attention of people of insight at home and abroad; however, because the viscosity of water is lower than that of mineral oil, the thrust The sealing and lubrication requirements of water hydraulic components such as water hydraulic cylinders are higher and more difficult

For this related 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, so far, similar to this The thrust water hydraulic cylinder of the sealing and lubricating core technology adopted in the embodiment of the invention has not yet been developed at home and abroad; also consult the literature: Zhang Jinsheng, Wang Zhi, Wang Zhaosheng. Operation and Maintenance of Stone Processing Equipment [M]. Beijing: Chemical Industry Publishing Society, 2008: 213-225, from this document and related patent information, so far, in the field of high-pressure water jet stone processing equipment, the sealing problem of thrust water hydraulic cylinder has not been solved.

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