阅读说明：本技术 一种卧式单吸离心泵 (Horizontal single-suction centrifugal pump ) 是由 张玲玲 于 2018-06-21 设计创作，主要内容包括：本发明涉及一种卧式单吸离心泵。所述的离心泵包括泵体、叶轮螺母、密封环、叶轮、泵盖、密封衬套、轴套、密封件、密封压盖、电机输出轴、轴承压盖、上连接件、油孔盖、轴承、支架和挡水圈,所述的叶轮设置在泵体内,所述的密封环设置在叶轮前部,所述的轴套设置在电机输出轴上,所述的密封衬套设置在电机输出轴上轴套前部,所述的密封压盖设置在电机输出轴外侧,所述的电机输出轴另一端连接在轴承压盖内,所述的电机输出轴与轴承压盖的结合部设置挡水圈,所述的轴承设置在电机输出轴上,所述的支架分别设置在泵体前端和后端。本发明结构简单、生产成本低、安装方便、密封性好、运行稳定、延长电机使用寿命。(The invention relates to a horizontal single-suction centrifugal pump. The centrifugal pump comprises a pump body, an impeller nut, a sealing ring, an impeller, a pump cover, a sealing bush, a shaft sleeve, a sealing element, a sealing gland, a motor output shaft, a bearing gland, an upper connecting piece, an oil hole cover, a bearing, a support and a water retaining ring, wherein the impeller is arranged in the pump body, the sealing ring is arranged at the front part of the impeller, the shaft sleeve is arranged on the motor output shaft, the sealing bush is arranged at the front part of the shaft sleeve on the motor output shaft, the sealing gland is arranged at the outer side of the motor output shaft, the other end of the motor output shaft is connected in the bearing gland, the water retaining ring is arranged at the joint part of the motor output shaft and the bearing gland, the bearing is arranged on the motor output shaft, and the support is respectively arranged at the. The invention has the advantages of simple structure, low production cost, convenient installation, good sealing performance, stable operation and prolonged service life of the motor.)

1. The utility model provides a horizontal single suction centrifugal pump which characterized in that: the centrifugal pump comprises a pump body, an impeller nut, a sealing ring, an impeller, a pump cover, a sealing bush, a shaft sleeve, a sealing element, a sealing gland, a motor output shaft, a bearing gland, an upper connecting piece, an oil hole cover, a bearing, a bracket and a water retaining ring, the impeller is arranged in the pump body, the sealing ring is arranged at the front part of the impeller, the pump cover is arranged on the pump body, one end of the output shaft of the motor is arranged in the impeller and is fixedly connected with the impeller through an impeller nut, the shaft sleeve is arranged on the output shaft of the motor, the sealing bush is arranged at the front part of the shaft sleeve on the motor output shaft, the sealing gland is arranged at the outer side of the motor output shaft, the other end of the motor output shaft is connected in the bearing gland, a water retaining ring is arranged at the joint part of the motor output shaft and the bearing gland, the bearing is arranged on the output shaft of the motor, and the supports are respectively arranged at the front end and the rear end of the pump body.

Technical Field

The invention relates to a pump body, in particular to a horizontal single-suction centrifugal pump.

Background

The mechanical rotary sealing device of the horizontal centrifugal pump in the prior art usually comprises a movable ring and a stationary ring, wherein the stationary ring is tightly and hermetically connected with a casing through a sealing ring, the movable ring is sleeved on a rotating shaft and rotates along with the rotating shaft, abutting end faces with relative rotary friction are arranged between the movable ring and the stationary ring, rotary closed surface precision is arranged between the end faces, the movable ring keeps proper abutting pressure between the abutting end faces of the movable ring and the stationary ring through the action of an abutting spring at the other end, and the sealing effect between the movable ring and the stationary ring is ensured; the structure has the defects that the pushing spring is sleeved on the rotating shaft and moves along with the rotating shaft, and when the rotating shaft is not installed accurately or works and is worn, the pushing spring cannot provide compensation instantly to keep the fit of the pushing end face between the movable ring and the static ring, so that leakage is caused.

Disclosure of Invention

The invention provides a horizontal single-suction centrifugal pump which is simple in structure, low in production cost, convenient to install, good in sealing performance, stable in operation and capable of prolonging the service life of a motor.

The technical scheme of the invention is as follows: the centrifugal pump comprises a pump body, an impeller nut, a sealing ring, an impeller, a pump cover, a sealing bush, a shaft sleeve, a sealing element, a sealing gland, a motor output shaft, a bearing gland, an upper connecting piece, an oil hole cover, a bearing, a bracket and a water retaining ring, the impeller is arranged in the pump body, the sealing ring is arranged at the front part of the impeller, the pump cover is arranged on the pump body, one end of the output shaft of the motor is arranged in the impeller and is fixedly connected with the impeller through an impeller nut, the shaft sleeve is arranged on the output shaft of the motor, the sealing bush is arranged at the front part of the shaft sleeve on the motor output shaft, the sealing gland is arranged at the outer side of the motor output shaft, the other end of the motor output shaft is connected in the bearing gland, a water retaining ring is arranged at the joint part of the motor output shaft and the bearing gland, the bearing is arranged on the output shaft of the motor, and the supports are respectively arranged at the front end and the rear end of the pump body.

The invention has the advantages of simple structure, low production cost, convenient installation, good sealing performance, stable operation and prolonged service life of the motor.

Drawings

Fig. 1 is a schematic structural view of the present invention.

In the figure, 1 is a pump body, 2 is an impeller nut, 3 is a sealing ring, 4 is an impeller, 5 is a pump cover, 6 is a sealing bush, 7 is a shaft sleeve, 8 is a sealing element, 9 is a sealing gland, 10 is a motor output shaft, 11 is a bearing gland, 12 is an upper connecting piece, 13 is an oil hole cover, 14 is a bearing, 15 is a bracket, and 16 is a water retaining ring.

Detailed Description

A horizontal single-suction centrifugal pump comprises a pump body 1, an impeller nut 2, a sealing ring 3, an impeller 4, a pump cover 5, a sealing bush 6, a shaft sleeve 7, a sealing element 8, a sealing gland 9, a motor output shaft 10, a bearing gland 11, an upper connecting piece 12, an oil hole cover 13, a bearing 14, a support 15 and a water retaining ring 16, wherein the impeller 4 is arranged in the pump body 1, the sealing ring 3 is arranged at the front part of the impeller 4, the pump cover 5 is arranged on the pump body 1, one end of the motor output shaft 10 is arranged in the impeller 4 and is fixedly connected with the impeller nut 2, the shaft sleeve 7 is arranged on the motor output shaft 10, the sealing bush 6 is arranged at the front part of the shaft sleeve on the motor output shaft 10, the sealing gland 9 is arranged at the outer side of the motor output shaft 10, the other end of the motor output shaft 10 is connected in the bearing gland 11, a joint part of the motor output shaft 10 and the bearing gland, the bearing 14 is arranged on the motor output shaft 10, and the brackets 15 are respectively arranged at the front end and the rear end of the pump body 1.

The above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention; therefore, although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that the present invention may be modified and equivalents may be substituted; all technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention should be construed to cover the scope of the claims that are appended hereto.