Balanced type double-row large-displacement axial plunger pump

An axial plunger pump, large displacement technology, applied in the direction of variable capacity pump components, pumps, multi-cylinder pumps, etc., can solve the problem of increasing the power density of the plunger pump and increasing the overturning moment of the cylinder block and the drive shaft. , Plunger pump self-priming and other problems, to achieve the effect of small size, improve power density, reduce flow pulsation and noise

Active Publication Date: 2014-07-23
FUZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The increase in the number of cylinder holes will lead to the increase of the cylinder body and even the entire pump body, and will also lead to a decrease in the self-priming performance of the plunger pump;
[0009] 4. Use multiple hydraulic pumps to work in series, but this will increase the size of the entire pump body, which is not conducive to improving the power density of the plunger pump. It is not suitable for aerospace

Method used

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  • Balanced type double-row large-displacement axial plunger pump
  • Balanced type double-row large-displacement axial plunger pump
  • Balanced type double-row large-displacement axial plunger pump

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Embodiment Construction

[0049] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings.

[0050] see figure 1 and Figure 5 , a balanced double-row large-displacement axial piston pump, including a drive shaft 1, a swash plate 4, an intermediate pump body 13 and a housing 5 between the two, and the housing is also provided with a swash plate Cooperate with the cylinder body 12 that is used to drive the drive shaft 1 to rotate. A flow plate 15 is also arranged between the cylinder body 12 and the middle pump body 13. The surface of the swash plate 4 opposite to the cylinder body is provided with cross-shaped The inner slope 25 and the outer slope 24 of the X type, the inner slide shoe 17 and the outer slide shoe 9 are respectively positioned on the inside slide surface 25 and the outer slide surface 24, and the inside slide shoe 17 and the outer s...

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Abstract

The invention discloses a balanced type double-row large-displacement axial plunger pump which comprises a swash plate, a cylinder body, a plunger pair, a valve plate, rotating plates and a driving shaft. The cylinder body is provided with two rows of concentric-circle cross-distributed holes, kidney-shaped holes of the holes incline towards the driving shaft, the kidney-shaped holes and the driving shaft cross by a certain angle to form a centrifugal oil shedding structure, and the self-suction capacity of the pump and the pump revolution speed allowable value are improved; the swash plate comprises two slopes which cross to for an X shape, the cross line passes through the center of a spline of the driving shaft, capsizing moment of reactive force of the swash plate on the cylinder body is reduced, the suspension length of the plungers is reduced, the stress condition of the cylinder body and the plungers is improved, and improvement of pressure rating of the pump is facilitated. The rotating plates are arranged on the two slopes, and abrasion of piston shoes and the swash plate is reduced.

Description

technical field [0001] The invention relates to an axial piston pump, in particular to a balanced large-displacement double-row axial piston pump, which can significantly improve the power density and self-priming performance of the pump, and at the same time significantly improve the impact of the cylinder body and the plunger. Power conditions, while reducing pump pulsation and noise. Background technique [0002] After decades of development, hydraulic transmission technology has become the key technology of modern transmission and control, and is widely used in various fields such as ships, metallurgy, and aerospace; hydraulic pumps, as energy conversion components in hydraulic transmission systems, are the power source of hydraulic transmission systems , its pros and cons directly affect the performance of the entire hydraulic transmission system. With the rapid development of the modern machinery industry, the demand for axial piston pumps is also increasing day by da...

Claims

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Application Information

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IPC IPC(8): F04B1/22F04B53/00
Inventor 陈传铭颜滨曲陈淑梅
Owner FUZHOU UNIVERSITY
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