JPS5867986U

JPS5867986U - Plunger structure of plunger pump

Info

Publication number: JPS5867986U
Application number: JP16278281U
Authority: JP
Inventors: 哲夫川崎; 田中　安成
Original assignee: 三菱重工業株式会社
Priority date: 1981-10-31
Filing date: 1981-10-31
Publication date: 1983-05-09

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１．２図は従来のプランジャポンプのプランジャ構造
を示すもので、第１図はその縦断面図ζ第２図はその変
形例の要部を示す断面図であり、舘３〜６図は本考案の
プランジャポンプのプランジャ構造を示すもので、第３
図はその要部の断面図、第４図は第３図のＩＶ−ＩＶ矢
視図、第５図はそのプランジャ要部を示す断面図、第６
図はその変形例の断面図である。１・・・ポンプ本体、２・・・弁板部、３・・・吸入口
、４・・・吐出口、５・・・シリンダブロック、７・・
・シリンダ部、９・・・スプライン部、１０・・・前蓋
、１１・・・駆動軸、１２・・・止め輪、１３．１４・
・・軸受、１６・・・球状頭部、２０・・・軸線、２１
・・・斜板、２２・・・摺動子、２３・・・抑え板、２
４・・・加圧子、２５・・・バネ、２６・・・プランジ
ャ、２７・・・固定部材、２８・・・内周壁、２９・・
・スナップリング、３０・・・溝。Fig. 1.2 shows the plunger structure of a conventional plunger pump, Fig. 1 is a vertical cross-sectional view thereof, Fig. 2 is a cross-sectional view showing the main part of a modification thereof, and Figs. 3 to 6 are This shows the plunger structure of the plunger pump of the present invention.
The figure is a sectional view of the main part of the plunger, FIG. 4 is a view taken along the line IV-IV in FIG.
The figure is a sectional view of a modified example. DESCRIPTION OF SYMBOLS 1... Pump body, 2... Valve plate part, 3... Suction port, 4... Discharge port, 5... Cylinder block, 7...
・Cylinder part, 9... Spline part, 10... Front cover, 11... Drive shaft, 12... Retaining ring, 13.14.
... Bearing, 16 ... Spherical head, 20 ... Axis line, 21
... Swash plate, 22 ... Slider, 23 ... Holding plate, 2
4... Pressure element, 25... Spring, 26... Plunger, 27... Fixing member, 28... Inner peripheral wall, 29...
・Snap ring, 30...groove.

Claims

[Scope of utility model registration request]

A ring-shaped groove is provided on the inner circumferential wall of the hollow part of the plunger in the plunger pump along a surface inclined with respect to the axis of the plunger, and a snap ring that engages with this groove is provided, and the snap ring is provided in the hollow part of the plunger. A plunger structure for a plunger pump, characterized in that it is filled with a fixing member that engages with a snap ring.