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Composite plunger of ultrahigh-pressure plunger pump

A plunger pump and composite technology, applied in the field of hydraulic pumps, can solve the problems of increased leakage, decreased volumetric efficiency, and increased maintenance costs of plunger pumps, and achieve the effects of reduced machining accuracy, weight reduction, and reduced processing costs

Inactive Publication Date: 2021-02-26
武科宜创(无锡)流体装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the design is improper or worn, the leakage of the plunger pump will increase, the volumetric efficiency will decrease, and the pressure will not rise high
When worn out, replace the plunger according to the situation, or replace the plunger and cylinder at the same time, and the maintenance cost will increase

Method used

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  • Composite plunger of ultrahigh-pressure plunger pump
  • Composite plunger of ultrahigh-pressure plunger pump
  • Composite plunger of ultrahigh-pressure plunger pump

Examples

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] like figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown, the composite plunger of an ultra-high pressure plunger pump according to the present invention includes a plunger body 1, a seal connecting hole 2 is provided at the upper end of the plunger body 1, and a connecting rod connection is provided at the lower end. Hole 3, the seal connecting hole 2 is an inverted cone hole, the plunger body 1 below the middle part of the seal connecting hole 2 is provided with a screw connecting hole 4, and the screw connecting hole 4 is connected to the connecting rod A damping hole 5 is provided between the 3 holes, and a support ring groove 6 is provided on the side wall of the lower part of the plunger body 1. The width and depth of the support ring groove 6 ...

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PUM

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Abstract

The invention relates to a composite plunger of an ultrahigh-pressure plunger pump. The composite plunger comprises a plunger body, wherein an umbrella-shaped sealing piece is arranged in a sealing piece connecting hole and connected with the plunger body through a hollow screw; a spherical hinge connecting rod is arranged in a connecting rod connecting hole; the upper end face of a spherical hinge at the joint of the plunger body and the spherical hinge connecting rod is a plane; a supporting ring is arranged in a supporting ring groove; an oblique notch is formed in the supporting ring; theumbrella-shaped sealing piece comprises a lower connecting body and a side connecting body which are integrally formed; the side connecting body is large in top and small in bottom; the contact position of the outer side of the upper end of the side connecting body and a cylinder block plunger hole is in surface contact; the hollow screw comprises a round nut and a screw body; center holes are formed in the middles of the round nut and the screw body; and an elastic groove is formed in the upper end of the round nut. According to the composite plunger, oil supply with the pressure of 70-80MPacan be achieved, leakage is avoided, the volume efficiency is high, the average service life is long, the size is small, the weight is light, and the maintainability is good.

Description

technical field [0001] The invention belongs to the technical field of hydraulic pumps, and in particular relates to a composite plunger of a plunger pump. Background technique [0002] The plunger pump is the core component of the hydraulic system and is widely used in construction machinery, metallurgical equipment, transportation and other fields. The plunger pump is responsible for supplying hydraulic system pressure oil, and its performance directly affects the normal operation of the hydraulic system. At present, the combination of the plunger and the cylinder in the plunger pump uses a gap seal to complete the tasks of oil absorption and pressure. When the design is improper or worn, the leakage of the plunger pump will increase, the volumetric efficiency will decrease, and the pressure will not rise high. After wear and tear, replace the plunger according to the situation, or replace the plunger and the cylinder body at the same time, and the maintenance cost will i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/14
CPCF04B53/14F04B53/143
Inventor 湛从昌曾良才郭媛陈新元傅连东陈奎生邓江洪王福红吴凛
Owner 武科宜创(无锡)流体装备有限公司