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Plunger pump

A plunger pump and plunger technology, applied in the field of fluid pumps, can solve the problems of large leakage and insufficient suction of the plunger pump, and achieve the effects of reliable performance, improved service life, and increased feeding area

Active Publication Date: 2015-03-25
NINGBO LIS IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Specifically, the technical problem to be solved by the present invention is to provide a plunger pump to solve the technical problems of insufficient suction and excessive leakage of the current plunger pump

Method used

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. However, the uses and purposes of these exemplary embodiments are only used to illustrate the present invention, and do not constitute any form of limitation to the actual protection scope of the present invention, nor limit the protection scope of the present invention thereto.

[0025] Such as figure 1 and figure 2 Commonly shown, the present invention provides a plunger pump, including a pump body, the pump body is a straight cylindrical structure, one end of the pump body is provided with a feed port 28, and the other end is slidably installed with a plunger 11, the plunger 11 is connected to drive The unit makes a reciprocating linear motion. A partition wall 25 is provided in the pump body close to the feed port 28. A mounting cylinder 23 is provided in the pump body between the partition wall 25 and the plunger 11. A closed installation is formed...

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Abstract

The invention discloses a plunger pump, and belongs to the technical field of fluid pumps. The plunger pump comprises a pump body. A partition wall is arranged at the portion, close to a feeding opening, of the interior of the pump body, an installation barrel is arranged at the portion, between the partition wall and a plunger, of the interior of the pump body and provided with a transmission shaft in a rotatable mode, a rotating disc is fixedly installed at the portion, located in an installation cavity, of the transmission shaft, a floating disc is arranged between the partition wall and the rotating disc, an impeller is fixedly installed on the transmission shaft, a feeding channel is formed between every two adjacent blades, a circulating gap is formed between the floating disc and the rotating disc, and a plurality of through holes corresponding to the circulating gap in position are formed in the installation barrel; the end, extending out of the installation barrel, of the transmission shaft is connected with the plunger, and a sleeve is installed on the outer surface of the installation barrel in a sliding mode and connected with the plunger through a connecting rod; a discharging opening is formed in the pump body and connected with a one-way valve. The plunger pump solves the technical problems that a current plunger pump is insufficient in sucking amount and excessively large in leakage amount, and is widely applied to continuous delivering of fluid.

Description

technical field [0001] The invention relates to a pump, more particularly to a plunger pump, and belongs to the technical field of fluid pumps. Background technique [0002] The plunger pump is an important device of the hydraulic system. It relies on the reciprocating movement of the plunger in the cylinder to change the volume of the sealed working chamber to realize functions such as oil absorption and oil pressure. Because the plunger pump has the advantages of high rated pressure, compact structure, high efficiency and convenient flow adjustment, it is widely used in high pressure, large flow and flow adjustment occasions, such as hydraulic presses, engineering machinery and ships. [0003] The traditional plunger pump is a kind of reciprocating pump, which belongs to the volume pump. Its plunger is driven by the eccentric rotation of the pump shaft to reciprocate, and its suction and discharge valves are check valves. When the plunger is pulled outward, the pressure i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B19/22F04B53/00F04B53/16
Inventor 任贤德
Owner NINGBO LIS IND