JPS63130691U

JPS63130691U -

Info

Publication number: JPS63130691U
Application number: JP2319087U
Authority: JP
Priority date: 1987-02-18
Filing date: 1987-02-18
Publication date: 1988-08-26

Description

[Brief explanation of the drawing]

第１図および第２図は本考案の実施例を示し、
第１図はプルアウト形立軸ポンプの縦断面図、第
２図は第１図の―線に沿つた台座と下部軸受
台との関係を示す横断面図、第３図は従来の台座
と下部軸受台との関係を示す横断面図である。１……ポンプケーシング、２……ポンプ主軸系
、２ａ……主軸、２ｃ……羽根、４……中間軸受
台、４ａ……アーム部、４ｂ……脚部、６……台
座、７……下部軸受台、７ｂ……切欠部、８……
ガイドベーン。 1 and 2 show an embodiment of the present invention,
Figure 1 is a vertical cross-sectional view of a pull-out type vertical shaft pump, Figure 2 is a cross-sectional view showing the relationship between the pedestal and lower bearing stand along the line - in Figure 1, and Figure 3 is a conventional pedestal and lower bearing stand. FIG. 3 is a cross-sectional view showing the relationship with the stand. DESCRIPTION OF SYMBOLS 1... Pump casing, 2... Pump main shaft system, 2a... Main shaft, 2c... Vane, 4... Intermediate bearing stand, 4a... Arm part, 4b... Leg part, 6... Pedestal, 7... Lower bearing stand, 7b...notch, 8...
guide vane.

Claims

[Scope of utility model registration request]

In pull-out vertical pumps, the inner diameter of the guide vane's inner peripheral wall is larger than the maximum outer diameter of the impeller blades, and the pump is removed by pulling out the pump main shaft system including the impeller. The intermediate bearing to be pivotally supported is held by an intermediate bearing stand having a plurality of arm parts, and a leg part is formed at the tip of the arm part of each intermediate bearing stand, and a leg part is formed on the inner peripheral wall of the pump casing so as to face each of the leg parts. and protruding pedestals to support the pedestals, and on the outer periphery of a lower bearing pedestal that is directly below each pedestal and pivotally supports the end of the main shaft, the inner diameter is smaller than the maximum outer periphery of the pedestals. a pull-out type vertical shaft pump, characterized in that a notch is formed having a concave surface and a circumferential width larger than the width of the pedestal on the same circumference;