KR980002895A

KR980002895A - Centrifugal pump

Info

Publication number: KR980002895A
Application number: KR1019960025427A
Authority: KR
Inventors: 민병규
Original assignee: 구자홍; Lg 전자주식회사
Priority date: 1996-06-28
Filing date: 1996-06-28
Publication date: 1998-03-30

Abstract

본 발명은 케이싱커버의 수로를 통해 회전축으로 이송되는 유체량을 조절할 수 있는 별도의 수단을 구비하여 적정윤활을 이루게 함으로서 누수방지 및 부품의 수명향상이 실현되는 원심펌프에 관한 것으로, 몸체를 구성하는 케이싱 및 베어링하우징과, 상기 베어링 하우징의 내부에 베어링에 의해 지지되어 전동기의 구동력을 전달 받는 회전축과, 상기 케이싱과 상기 베어링 하우징 사이에 일체로 조립되어 유입실을 형성함과 동시에 상기 유입실과 상기 회전축을 연결하는 수로가 형성된 케이싱커버와, 상기 회전축의 일단에 장착되어 유입실로 물을 흡입하여 토출시키는 임펠러와, 상기 케이싱커버에 장착되어 회전축을 지지하는 글랜드패킹 및 글랜드를 포함하는 원심펌프에 있어서, 상기 케이싱커버에 나사홈이 형성되어 상기 수로와 연통되고, 전후이동하면서 상기 수로를 개폐할 수 있도록 상기 나사홈에 윤활수량 조절나사가 나사결합되어 있기 때문에 고압의 윤활수에 의한 글랜드패킹의 파손이나 케이싱커버와 회전축 사이로 유체의 누수현상을 방지하고, 윤활수에 의한 글랜드패킹의 냉각 효율을 향상시켜 펌프의 품질과 신뢰도를 향상시킬 수 있는 효과가 있다.The present invention relates to a centrifugal pump for preventing water leakage and improving lifetime of parts by providing an appropriate means for adjusting the amount of fluid to be transferred to a rotary shaft through a channel of a casing cover to achieve proper lubrication, And a bearing housing, a rotary shaft supported by the bearing inside the bearing housing to receive a driving force of the motor, and an inlet chamber integrally assembled between the casing and the bearing housing, wherein the inlet chamber and the rotary shaft A centrifugal pump mounted on one end of the rotary shaft for sucking and discharging water into the inflow chamber, and a gland packing and a gland attached to the casing cover for supporting the rotary shaft, Wherein a screw groove is formed in the casing cover to communicate with the water channel, Since the lubrication quantity adjusting screw is screwed to the screw groove so as to be able to open and close the water channel while moving backward, it is possible to prevent the damage of the gland packing due to the high pressure lubricating water or the leakage of the fluid between the casing cover and the rotary shaft, It is possible to improve the cooling efficiency of the gland packing and improve the quality and reliability of the pump.

Description

Centrifugal pump

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명의 원심펌프의 회전축봉부를 나타낸 부분단면도.FIG. 1 is a partial sectional view showing a rotary shaft rod portion of a centrifugal pump of the present invention. FIG.

제2도는 제1도의 윤활수량 조절장치의 일부 절개 사시도.FIG. 2 is a partially cutaway perspective view of the lubrication quantity regulating device of FIG.

제3도는 종래의 원심펌프의 구성을 나타낸 단면도.Fig. 3 is a sectional view showing a configuration of a conventional centrifugal pump;

제4도는 제3도의 회전축봉부를 나타낸 부분단면도.FIG. 4 is a partial cross-sectional view of the rotating shaft bar of FIG. 3;

Claims

A rotating shaft supported by a bearing inside the bearing housing to receive a driving force of the motor, and an inlet chamber integrally assembled between the casing and the bearing housing, A casing cover having a water passage connecting the inlet chamber and the rotary shaft, an impeller mounted on one end of the rotary shaft to suck and discharge water into the inlet chamber, and a gland packing and a gland attached to the casing cover to support the rotary shaft Wherein a screw groove is formed in the casing cover to communicate with the water channel, and a lubricating quantity adjusting screw is screwed to the screw groove so as to open and close the water channel while moving back and forth.

The centrifugal pump according to claim 1, wherein an O-ring is coupled to the body of the lubricating oil amount adjusting screw and closely contacted with the screw groove.

The centrifugal pump according to claim 1, wherein a contact groove is formed on a water channel surface opposite to an end of the lubricating oil amount adjusting screw.

※ Note: It is disclosed by the contents of the first application.