JPS6139498U

JPS6139498U - Installation structure between pump impeller and pump shaft

Info

Publication number: JPS6139498U
Application number: JP12557284U
Authority: JP
Inventors: 末広尾崎; 隆晴角田
Original assignee: 株式会社クボタ
Priority date: 1984-08-17
Filing date: 1984-08-17
Publication date: 1986-03-12
Also published as: JPS6338397Y2

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図はこの考案に係るポンプ羽根車とポンプ軸との取
付け構造の一実施例を示す断面図、第２図は同上■一■
線方向からみた部分図、第３図おイ．よび第４
図は同上羽根車の取付けｉよび取外し状態のそれぞれ説
明図であり、また第５図は従来例構造を示す断面図であ
る。１・・・・・・本体ハウジング、２・・・・・・ポンプ
ケーシング、４・・・・・・吸込カバー、５・・・・・
・ポンプ駆動軸、５ａ・・・・・・駆動軸の軸端部、７
・・・・・・ハブ部材、９・・・・・・ポンプ羽根車、
１０・・・・・・ポンプ羽根、１１・・・・・・取付け
孔、１３・・・・・・六角穴付ボルト、１３ａ，１３ｂ
・・・・・・六角穴付ボルトの頭部、ネジ部、１５・・
・・・・保持凹部、１６・・・・・・環状止めナット、
１６ａ・・・・・７・環状止めナットの内径孔、１８・
・・・・・六角レンチ、１９・・・・・・挿通孔。Figure 1 is a sectional view showing an embodiment of the mounting structure for the pump impeller and pump shaft according to this invention, and Figure 2 is the same as above.
Partial view seen from the line direction, Figure 3 A. and the fourth
The figures are explanatory diagrams of the attached and removed states of the same impeller, respectively, and FIG. 5 is a sectional view showing a conventional structure. 1...Body housing, 2...Pump casing, 4...Suction cover, 5...
・Pump drive shaft, 5a...Shaft end of drive shaft, 7
...Hub member, 9...Pump impeller,
10...Pump blade, 11...Mounting hole, 13...Hexagon socket head bolt, 13a, 13b
・・・・・・Hexagon socket head bolt head, threaded part, 15...
...Retaining recess, 16...Annular locking nut,
16a...7.Inner diameter hole of annular locking nut, 18.
...Hexagonal wrench, 19...Insertion hole.

Claims

[Scope of utility model registration request]

The hub member is fixed to the pump drive shaft, and the base side of the pump impeller is stopped from rotating to the hub member and fitted with the spigot, and the impeller is attached to the shaft end of the drive shaft so that the center of its head is fixed. In a pump configuration in which a holding recess is formed in the center of the impeller from the base side, and the hexagon socket head bolt is inserted into the holding recess in the center of the impeller. The head of the head is fitted with a margin in the tightening direction, and is held in place by an annular locking nut from the base side, so that it can only be freely rotated forward and backward.
Furthermore, the mounting structure for the pump impeller and the pump shaft is characterized in that an insertion hole for a hexagonal wrench for bolt rotation operation is formed from the outside in the center of the impeller.