JPS644919U

JPS644919U -

Info

Publication number: JPS644919U
Application number: JP9904887U
Authority: JP
Priority date: 1987-06-26
Filing date: 1987-06-26
Publication date: 1989-01-12

Description

[Brief explanation of the drawing]

第１図は本考案の第１の実施例を示す断面図、
第２図はその左側面図、第３図は本考案のポンプ
用軸受構造を用いたマグネツトドライブポンプの
一部切欠正面図、第４図〜第８図は本考案の第２
〜第６の実施例を示す断面図、第９図は本考案の
ポンプ用軸受構造と従来のポンプ用軸受構造との
性能比較テストの結果を示すグラフ、第１０図は
性能比較テストに用いた従来のポンプ用軸受構造
を示す断面図、第１１図はその左側面図、第１２
図は他の従来例を示す断面図である。１……軸受、３……円周溝、４……縦溝、１２
……シヤフト。 FIG. 1 is a sectional view showing a first embodiment of the present invention;
Fig. 2 is a left side view of the same, Fig. 3 is a partially cutaway front view of a magnetic drive pump using the pump bearing structure of the present invention, and Figs.
~ A cross-sectional view showing the sixth embodiment, Fig. 9 is a graph showing the results of a performance comparison test between the pump bearing structure of the present invention and a conventional pump bearing structure, and Fig. 10 is a graph used for the performance comparison test. A sectional view showing a conventional pump bearing structure, Fig. 11 is a left side view thereof, Fig. 12 is a sectional view showing a conventional pump bearing structure.
The figure is a sectional view showing another conventional example. 1...Bearing, 3...Circumferential groove, 4...Vertical groove, 12
...Shaft.

Claims

[Scope of Claim for Utility Model Registration] 1. A journal type pump bearing structure for rotatably supporting a rotating body, wherein at least one shaft extends over the entire length of either the bearing on the sliding surface of the journal bearing or the shaft. 1. A bearing structure for a pump, characterized in that a vertical groove is formed in the sliding surface, and at least one circumferential groove is formed in either the bearing or the shaft near the center of the sliding surface. 2. The bearing structure for a pump according to claim 1, in which the bearing has a bearing clearance ratio of 0.4 to 3%.