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Automatic stop centering mechanism in use for reciprocating pump

An automatic centering and reciprocating pump technology, used in machines/engines, liquid fuel engines, pump components, etc., can solve the problems of poor reliability, eccentric wear of the plunger, and poor alignment, and achieve high reliability and avoid deviation. Grinding and reducing the effect of pump efficiency

Inactive Publication Date: 2008-08-27
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of poor alignment between the plunger and crosshead of the prior art, eccentric wear and poor reliability of the plunger and packing during work, the present invention provides a plunger and crosshead with good alignment, effective Avoid eccentric wear when the plunger and packing are working, and the reciprocating pump with good reliability uses the plunger automatic centering mechanism

Method used

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  • Automatic stop centering mechanism in use for reciprocating pump
  • Automatic stop centering mechanism in use for reciprocating pump

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] refer to figure 2 , a plunger automatic centering mechanism for a reciprocating pump, comprising a crosshead (1) and a plunger (7) connected to a reciprocating drive mechanism, one end of the plunger (7) is installed on the crosshead ( 1) In the plunger cavity (11), the other end of the plunger (7) passes through the stuffing (8) and the guide sleeve (10), and the stuffing (8) and the guide sleeve (10) are installed in the stuffing box (9); The end of the plunger (7) is connected to the crosshead (1) through a spherical sliding assembly; the spherical sliding assembly is composed of a spherical seat (2) and a hemisphere (3), and the bottom of the plunger cavity (11) is installed with the spherical seat (2), the hemisphere (3) is located in the spherical surface of the spherical seat (2), and the hemisphere (3) is fixedly connected to the end of the plunger (7)...

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Abstract

The present invention relates to a plunger automatic centering mechanism for reciprocating pump. Said centering mechanism includes crosshead connected with reciprocating drive mechanism and plunger, one end of the described plunger is mounted in the plunger cavity interior of crosshead by means of fastening piece, another end of the described plunger is passed through packing and guide shell, the described packing and guide shell are mounted on the packing chamber. The described plunger end portion and the described crosshead are connected by means of spherical slide component, and the described spherical slide component is composed of spherical seat and semisphere body, the described spherical seat is mounted on the bottom portion of the described plunger cavity, and the described semisphere body is positioned in the spherical surface of the spherical seat, and the described semisphere body is fixedly connected with the plunger end portion.

Description

(1) Technical field [0001] The invention relates to a plunger (piston rod) automatic centering mechanism for a reciprocating pump. (2) Background technology [0002] The reciprocating pump is a widely used mechanical product and plays an important role in various industries. refer to figure 1 , One of the main failure modes of the reciprocating pump is that the plunger (piston rod) (7) and the filler (8) are eccentrically worn during work, causing serious heating, fast wear and short life. Seriously affect the reliability of the pump. [0003] The connection mechanism between the crosshead (1) and the plunger (piston rod) (7) of an ordinary reciprocating pump is shown in Figure (2), which mainly consists of the crosshead (1), snap ring (4), gasket (5), pressure Tightening ring (6), plunger (piston rod) (7), stuffing (8), stuffing box (9), guide sleeve (10) and other components. The crosshead (1) is directly connected with the plunger (piston rod) (7) with a flat end surf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B53/00
Inventor 张生昌陈明海周小皮寿涛牟介刚邓鸿英郑水华林界
Owner ZHEJIANG UNIV OF TECH
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