JPS6186591U

JPS6186591U -

Info

Publication number: JPS6186591U
Application number: JP17194684U
Authority: JP
Priority date: 1984-11-12
Filing date: 1984-11-12
Publication date: 1986-06-06

Description

[Brief explanation of drawings]

第１図はこの考案の実施例のカバーを除去した
状態の右側面図、第２図は従来の歯車ポンプ又は
歯車モータの１例を示す縦断正面図、第３図は第
２図のＣ−Ｃ断面拡大図、第４図は第２図のＤ−
Ｄ断面拡大部分図、第５図は第４図のＥ−Ｅ断面
図、第６図は第３図の通路７０をピン７４が遮断
する状態を示す通路７０に直角な断面拡大図であ
る。１２，１４…歯車、１６，１８…歯車の軸、５
６′，５８′…第１０リング、６０′，６２′…
高圧圧力室、５４′…第２０リング、６４′…低
圧圧力室、５２′…第３０リング、６６′…中間
圧圧力室、６８…溝、８０，８１…連通部、８２
，８３…流体の出入口、２６…本体、２８，３０
…蓋、２０，２２…軸受箱。 Fig. 1 is a right side view of the embodiment of this invention with the cover removed, Fig. 2 is a longitudinal sectional front view showing an example of a conventional gear pump or gear motor, and Fig. 3 is a C--C in Fig. 2. C section enlarged view, Fig. 4 is D- of Fig. 2
FIG. 5 is an enlarged cross-sectional view taken along the line E--E in FIG. 4, and FIG. 6 is an enlarged cross-sectional view perpendicular to the passage 70 in FIG. 3, showing a state in which the pin 74 blocks the passage 70. 12, 14... Gear, 16, 18... Gear shaft, 5
6', 58'...10th ring, 60', 62'...
High pressure chamber, 54'...20th ring, 64'...Low pressure chamber, 52'...30th ring, 66'...Intermediate pressure chamber, 68...Groove, 80, 81...Communication portion, 82
, 83... Fluid inlet/outlet, 26... Main body, 28, 30
...Lid, 20, 22...Bearing box.

Claims

[Scope of utility model registration request]

A main body houses a pair of gears that are fixed to respective shafts and mesh with each other, and a bearing box that is in contact with both sides of the gears and is movable in the axial direction and bearing the shaft. Lids are provided on both sides, and the main body is provided with fluid inlet and outlet holes that reach the front and rear sides of the meshing position of the gear, respectively, and fluid inlet and outlet holes that extend from the gear-side end of the inlet and outlet holes to both sides of the lid. In a gear motor or pump having a communication portion reaching the inner side, a tenth ring is provided between the bearing box, the main body, and the lid so as to surround the outer end of the communication portion of the fluid inlet/outlet hole which becomes a high pressure side during operation. a 20th ring surrounding the shaft is provided between the bearing box and the lid to form a low pressure chamber; a 20th ring surrounding the shaft is provided between the bearing box and the lid; A pressure compensation mechanism for a gear motor or a pump, in which a 30th ring surrounding the ring is provided to form an intermediate pressure chamber.