A liquid phase plunger pump with improved structure
An improved structure and plunger pump technology, which is applied to parts of pumping devices for elastic fluids, pump elements, variable displacement pump parts, etc., can solve the problems of inconvenient assembly and replacement of plunger rods and high processing accuracy requirements , to achieve the effect of preventing accidental damage, reducing processing difficulty and cost
Active Publication Date: 2016-03-30
ANHUI WAYEE SCI & TECH CO LTD
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Problems solved by technology
The liquid phase plunger pump with this structure has no dust-proof and protective structure on the exposed plunger rod, the assembly and replacement of the plunger rod is inconvenient, and the processing accuracy of the pump is required to be high.
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[0011] like figure 1 shown. A liquid-phase plunger pump with an improved structure, including high-pressure chambers and low-pressure chambers 1 and 2 whose surfaces are connected as a whole. The side is provided with an inner cavity cavity, and also includes a plunger rod 3 and a dustproof cover 6. The rear side of the dustproof cover 6 is set as an opening, and a pressure plate 7 is fixed on the opening, and a spring 5 is arranged in the dustproof cover 6. One end of the spring 5 is connected to the front side of the dustproof cover 6, and the dustproof cover 6 is integrally assembled on the plunger rod 3 and installed at the mouth of the rear side of the low pressure cavity 2, and the front end of the plunger rod 3 extends from the front side of the dustproof cover 6 out and penetrates into the inner cavities of high and low pressure chambers 1 and 2, and the plunger rod 3 is slidingly fitted with the front side of the dust cover 6, and the rear end of the plunger rod 3 p...
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The invention discloses a liquid-phase plunger pump with an improved structure, which comprises a high-pressure chamber body and a low-pressure chamber body. The rear side of the low-pressure chamber body is provided with an inner chamber opening, and also includes a plunger rod, a dustproof jacket, and a dustproof jacket. A pressure plate is fixed on the rear opening, and a spring is arranged in the dustproof cover. The dustproof cover is integrally assembled on the plunger rod and installed at the rear cavity opening of the low pressure cavity. The front end of the plunger rod penetrates into the inner cavity of the high and low pressure cavity. Among them, the rear end of the plunger rod protrudes from the pressure plate and is fixedly connected with a push rod. There is a ring platform on the body of the plunger rod, and a support ring is set on the ring platform. The front ring surface of the support ring presses against the spring, and the pressure plate presses Tightly on the rear ring surface of the support ring. The invention can prevent dust and foreign matter from falling into the working surface of the plunger rod, reduce the abnormal wear and tear of the high and low pressure sealing rings between the plunger rod and the high and low pressure chambers, and at the same time, there is no need between the plunger rod and the ejector rod. There are high coaxiality requirements, which can reduce processing difficulty and cost.
Description
technical field [0001] The invention relates to the field of liquid phase plunger pumps, in particular to a liquid phase plunger pump with an improved structure. Background technique [0002] The liquid phase plunger pump is one of the commonly used pump structures. The liquid phase plunger pumps in the prior art are as figure 2 As shown, it is composed of high and low pressure cavities connected by surfaces. The front end of the plunger rod extends into the inner cavity connected with the high and low pressure cavities, and the other end is exposed and fixedly connected with a push rod. The liquid phase plunger pump of this structure has no dust-proof and protective structure on the exposed plunger rod, the assembly and replacement of the plunger rod is inconvenient, and the processing accuracy of the pump is required to be high. Contents of the invention [0003] The purpose of the present invention is to provide a liquid phase plunger pump with an improved structure to...
Claims
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IPC IPC(8): F04B53/00
Inventor 丁继恒周宇高美丽
Owner ANHUI WAYEE SCI & TECH CO LTD