Plunger structure of plunger type hydraulic pump and plunger type hydraulic pump comprising plunger structure

A hydraulic pump and plunger technology, applied in the field of plunger hydraulic pump, can solve the problems of oil suction, insufficient oil absorption of plunger cavity, cavitation, etc., to solve cavitation and noise, improve oil absorption capacity, improve The effect of power

Pending Publication Date: 2021-12-03
BEIJING HUADE HYDRAULIC INDAL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a plunger structure of a plunger hydraulic pump and a plunger hydraulic pump including it, so as to solve the phenomenon of insufficient oil absorption in the plunger chamber in the prior art, especially for hydraulic pumps. When the operating speed is increased rapidly, the phenomenon of oil suction occurs, which leads to the problem of cavitation

Method used

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  • Plunger structure of plunger type hydraulic pump and plunger type hydraulic pump comprising plunger structure
  • Plunger structure of plunger type hydraulic pump and plunger type hydraulic pump comprising plunger structure
  • Plunger structure of plunger type hydraulic pump and plunger type hydraulic pump comprising plunger structure

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Embodiment Construction

[0048] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the plunger structure of a plunger hydraulic pump proposed according to the present invention and its The specific implementation of the plunger hydraulic pump and its effects are described in detail below.

[0049] An embodiment of the present invention provides a plunger structure of a plunger hydraulic pump. Such as figure 2 As shown, it includes: a plunger body 10, a plunger ball head 11 and a one-way throttle valve 12.

[0050] Wherein, the plunger ball head 11 is connected to one end of the plunger body 10, the plunger body 10 is provided with a hollow cavity 100, and one end of the hollow cavity 100 is set as an opening structure 1001; the plunger body 10 is provided with at least one first channel 101 , the first hole 101 communicates with the hollow cavity 100 and the outside of the plunger body 10 ; the one-way throttle valv...

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Abstract

The invention relates to a plunger structure of a plunger type hydraulic pump and the plunger type hydraulic pump comprising the plunger structure. The plunger structure of the plunger type hydraulic pump comprises a plunger body, a plunger ball head and a one-way throttle valve, wherein the plunger ball head is connected to one end of the plunger body, the plunger body is provided with a hollow cavity, one end of the hollow cavity is of an opening structure, at least one first hole channel is formed in the plunger body and communicates with the hollow cavity and the exterior of the plunger body, and the one-way throttle valve is arranged in the hollow cavity and is used for opening and closing the at least one first hole channel. According to the plunger structure of the plunger type hydraulic pump and the plunger type hydraulic pump comprising the plunger structure, by means of the manner that the at least one first hole channel is formed in the plunger body, when the plunger structure absorbs insufficient oil, the oil can be supplemented and absorbed through the at least one first hole channel, the phenomenon that the plunger structure absorbs the insufficient oil is avoided, especially the problem that cavitation occurs due to the fact that the oil is completely absorbed when the operation speed of the hydraulic pump is increased at a top speed is solved.

Description

technical field [0001] The invention relates to the technical field of plunger hydraulic pumps, in particular to a plunger structure of a plunger hydraulic pump and a plunger hydraulic pump including the same. Background technique [0002] The plunger hydraulic pump is the core equipment in the hydraulic system, through the reciprocating linear motion of the plunger relative to the cylinder, to realize the process of oil suction and pressure. Such as figure 1 As shown, the plunger commonly used in plunger hydraulic pumps at present includes a plunger body 10 and a plunger ball head 11. The plunger body 10 is provided with a hollow cavity 100, and the plunger ball head 11 is provided with a orifice 110 . The plunger of this structure can only rely on oil absorption from the bottom of the plunger during the oil absorption process. When the working conditions change, this structure may cause insufficient oil absorption in the plunger cavity, especially when the operating spee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/14F04B53/12
CPCF04B53/14F04B53/12
Inventor 张鑫宇杨广文周宇焦玲李跃军曹明张丽丽
Owner BEIJING HUADE HYDRAULIC INDAL GROUP
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