Axial plunger pump for increasing flow and sealing pressure

A technology of axial piston pump and sealing pressure, which is applied in pumps, multi-cylinder pumps, liquid variable displacement machines, etc.

Inactive Publication Date: 2012-10-17
李基深
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Far from being able to meet the urgent need for the development of extra-large equipment, we can only rely on imports

Method used

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  • Axial plunger pump for increasing flow and sealing pressure
  • Axial plunger pump for increasing flow and sealing pressure
  • Axial plunger pump for increasing flow and sealing pressure

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Experimental program
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Embodiment Construction

[0021] First of all, in the specific implementation of the manufacture of one pump and two sets of booster systems, three problems must be solved:

[0022] 1. In order to achieve 180° staggering of the highest points of the inner swash plate and the outer swash plate (on the long axis of the ellipse boundary of the inclined plane), the workpiece must be pre-marked as a reference line for the highest point and the lowest point of the inclined plane. This reference line passes through The center of the two ends of the workpiece is connected to the busbar of the workpiece cylinder, and the busbar connecting the highest point and the lowest point of the inclined surface is drawn on the workpiece cylinder, and the reference line of the busbar is always kept during processing on the coordinate machine tool. When assembling, the inner bevel Aligning the reference lines of the busbars of the inner swash plate and the outer swash plate can ensure that the highest points of the inner swash...

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PUM

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Abstract

The invention relates to an axial plunger pump for increasing flow and sealing pressure, belonging to the hydraulic pressure industry of general machinery field. Compared with the traditional pump which has one set of booster system, the axial plunger pump has two sets of booster system, wherein the highest points of two inclined discs ( part 1 and part 2 shown in the chart) differ 180 DEG so that the two sets of plungers (part 4 and part 5 shown in the chart) boost in pair to balance moment acting on a valve plate (part 8 shown in the chart) to uniform the sealing pressure in the front and at the back of the valve plate so as to seal higher pressure; a cylinder sleeve (part 6 shown in the chart) made of Si3N4 is added in the fit clearance of the plungers and a cylinder body (part 7 shownin the chart) to improve clearance sealing and cylinder body strength; and by the measures of the invention, the maximum flow and the pressure of the pump are greatly increased. High-pressure and large-flow pumps are used for large-sized oil-pressure or hydraulic-pressure machinery to greatly reduce the volume of main engine thereof, and thus, the manufacture difficulty is reduced, the volume andthe quantity of the matched axial plunger pump is reduced, a large-sized oil press can be manufactured, and project cost and construction cost are greatly saved.

Description

technical field [0001] The invention belongs to the pump industry in fluid machinery in the field of general machinery. The pump is often referred to as the heart of the machine. It sends hydraulic pressure to make the machine run. Axial piston pump is one of the higher pressure pumps. It is widely used in hydraulic presses, general machinery, machine operating systems, automatic control systems, metallurgy, petrochemical and other fields. Background technique [0002] With the advancement of technology in the world, some fields are developing in a large-scale direction, such as guns, aircraft, ships, high-rise buildings and so on. To manufacture an aircraft carrier, it is inseparable from an extra-large 10,000-ton hydraulic press. Extra-large 10,000-ton hydraulic presses require high-pressure and high-flow pumps. At present, only a few countries in the world can produce such super-large equipment as aircraft carriers. They have their own high-pressure high-flow pump t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B1/16
Inventor 李基深
Owner 李基深
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