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Fully water lubricating and end flow distributing pure water hydraulic axial plunger pump or motor

An axial plunger pump, water lubrication technology, applied to the components of the pumping device for elastic fluid, fluid pressure actuating device, pump and other directions, can solve the difficulty of stepless variable, difficult rotating speed and poor self-priming and other problems, to achieve the effect of improving work reliability and service life, light weight and short length

Inactive Publication Date: 2004-12-15
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure cannot be used as a hydraulic motor, the self-priming ability is poor, the stepless variable is difficult, and the speed is difficult to increase

Method used

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  • Fully water lubricating and end flow distributing pure water hydraulic axial plunger pump or motor
  • Fully water lubricating and end flow distributing pure water hydraulic axial plunger pump or motor
  • Fully water lubricating and end flow distributing pure water hydraulic axial plunger pump or motor

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Embodiment Construction

[0024] Such as Figure 1 to Figure 4 As shown, the present invention consists of a shell (including a left end cover 6, a right end cover 16, and a housing 7) and a rotatable cylinder 20 installed in the shell. Cylinder holes parallel to the axis of the cylinder body 20 are evenly distributed on the same circumference of the cylinder body 20. The plunger 10 of the plunger shoe assembly is placed in the cylinder hole, and the inner wall of the cylinder hole is firmly combined with reinforced plastic, which is made of stainless metal material The plunger 10 is made into a plunger pair. On the right side of the cylinder block 20 is the thrust plate 14 . The central spring 11 placed in the center of the cylinder body 20 compresses the sliding shoe 9 and the swash plate 8 of each plunger shoe assembly through the cylinder body, the ball joint 22 and the return plate 23 . The other end of the central spring 11 presses the thrust plate 14 to the flow plate 15 by pressing the plasti...

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PUM

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Abstract

The fully water lubricating and end flow distributing water hydraulic axial plunger pump or motor operates with filtered natural water as work medium and consists of mainly one casing and one rotating cylinder inside the casing. The cylinder has odd holes distributed homogeneously in the same circumference and parallel to the driving or output shaft, plungers of the plunger-sliding shoe assembly are set inside the holes, and the flow distributing sleeve has one end installed in the other end of the holes and the other end set in the holes of the push stopping disc. The push stopping disc floats to the cylinder to compensate the error of parts in machining and installation. The central spring has one end pressing the push stopping disc to the flow distributing disc via plastic rod and the other end pressing the sliding shoe to the inclined disc via the cylinder, ball pivot and backstroke disc, and the driving or output shaft is combined firmly to the cylinder.

Description

Technical field [0001] The invention relates to an energy conversion device in hydraulic transmission, in particular to a pure water hydraulic axial plunger pump or motor with full water lubricated end face distribution. technical background [0002] Pure water hydraulic transmission technology uses filtered natural water (including seawater and fresh water) as the hydraulic medium, which has the advantages of cleanness, no pollution, and no fire hazard. In the past ten years, the development of new materials, the progress of processing technology and the successful development of hydraulic components with new structures have overcome the shortcomings of early hydraulic transmissions such as easy corrosion, easy wear, large leakage, and low efficiency, making pure water hydraulic transmission The technology has made great progress, and it has begun to widely enter the industrial application fields such as food, paper making, textile, medical equipment, fire protection, metal...

Claims

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Application Information

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IPC IPC(8): F04B1/12F04B53/18F15B15/08
Inventor 周华杨华勇龚国芳
Owner ZHEJIANG UNIV
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