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Straight shaft type axial plunger pump

A technology of axial piston pump and direct shaft type, which is applied in the direction of pumps, multi-cylinder pumps, liquid displacement machinery, etc., to achieve the effect of simple structure, scientific and reasonable design, and high pressure

Inactive Publication Date: 2018-01-09
方乐
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Axial piston pumps can also be divided into two types: direct shaft and swash plate. The noise of the direct shaft axial piston pump is lower than that of the swash plate axial piston pump. However, due to the sudden expansion and compression of the oil It will cause noise, so it is necessary to design a reasonable direct shaft axial piston pump

Method used

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  • Straight shaft type axial plunger pump

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Effect test

Embodiment Construction

[0012] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0013] Such as figure 1 As shown, a straight shaft axial piston pump, the plunger pump includes a pump shaft 1, a swash plate 2, a plunger 3, a cylinder body 4 and an oil distribution plate 5, the plunger pump is driven by a through shaft, and the slant Disk 2, cylinder body 4 and oil distribution plate 5 are installed on the pump shaft 1, the pump shaft 1 and the cylinder body 4 are connected by splines, and the cylinder body 4 is evenly distributed along the circumference with 9 plunger holes 9 parallel to the pump shaft 1 , each plunger hole 9 is equipped with a plunger 3 that can slide freely therein, the left end surface of each plunger 3 is close to the...

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Abstract

The invention relates to a plunger pump, in particular to a straight-shaft axial plunger pump. A straight-shaft axial plunger pump, the plunger pump includes a pump shaft, a swash plate, a plunger, a cylinder and an oil distribution plate, the plunger pump is driven by a shaft, the swash plate, cylinder The cylinder body and the oil distribution plate are installed on the pump shaft. The cylinder body is evenly distributed along the circumference with an odd number of plunger holes parallel to the pump shaft. Each plunger hole is equipped with a plunger that can slide freely in it. Each plunger The left end face of the cylinder block is close to the right end face of the swash plate, and the right end face of the cylinder body is close to the oil distribution plate. There are waist-shaped oil suction windows and oil discharge windows on the oil distribution plate. There are damping holes in the area between them; the inclination angle a of the swash plate ranges from 0 to 16°, and the stroke c of the plunger ranges from 0 to 15 mm. The invention has scientific and reasonable design, can meet actual production needs, has simple structure, small volume, infinite variable, high pressure, low noise, high efficiency and low manufacturing cost.

Description

technical field [0001] The invention relates to a plunger pump, in particular to a straight-shaft axial plunger pump. Background technique [0002] Hydraulic systems have very important applications in many key fields such as aerospace, military weapons, scientific research, construction machinery, etc. Hydraulic pumps, as the core components of hydraulic systems, occupy an important position. Hydraulic pumps include gear pumps, plunger pumps, vane pumps, etc. These forms of pumps all rely on volume changes to work, and the volume change of the plunger pump is realized by the reciprocating motion of the plunger. Both the inner surface of the cylinder bore and the outer surface of the plunger are cylindrical surfaces that can be processed with high matching precision, and have good sealing performance, which is more obvious under high pressure. [0003] Piston pumps can be divided into two types: axial piston pumps and radial piston pumps. Because axial piston pumps have the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B1/22
Inventor 方乐
Owner 方乐
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