CN213775698U

CN213775698U - End suction centrifugal pump with novel bearing chamber

Info

Publication number: CN213775698U
Application number: CN202022221515.8U
Authority: CN
Inventors: 吴明亮
Original assignee: Wuxi Aibide Pump Industry Co ltd
Current assignee: Wuxi Aibide Pump Industry Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-07-23
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a centrifugal pump is inhaled to end with novel bearing room belongs to the technical field of centrifugal pump, and its technical scheme main points are including bracket, bearing room and back bearing cap, the left and right sides at the bearing room is installed respectively to bracket and back bearing cap, integrated into one piece has the front end housing on the bracket, the left end at the bearing room is installed to the front end housing, transversely wear to be equipped with the pump shaft in the bearing room, the bearing room is extended respectively with front end housing and back bearing cap to the both ends of pump shaft, the periphery of bearing room is provided with the cooling chamber, the cooling chamber annular sets up the outside at the bearing room, water inlet and delivery port have been seted up on the cooling chamber, water inlet and delivery port are installed into water lid and are gone out the water cover respectively. The utility model discloses can effectively carry out cooling to the bearing, improve the life of bearing.

Description

End suction centrifugal pump with novel bearing chamber

Technical Field

The utility model relates to a technical field of centrifugal pump, in particular to centrifugal pump is inhaled to end with novel bearing room.

Background

An end suction centrifugal pump is one of centrifugal pumps, called an end suction pump. The back-pumping structure is adopted, the impeller, the main shaft and the firm structure of the bearing can be installed and replaced without dismantling a pump shell, and dislocation and deformation of the water pipe can be reduced to the maximum extent. Centrifugal pumps rely on the action of rotating impellers on the fluid to transfer the mechanical energy of the prime mover to the fluid. The liquid discharged by the impeller passes through the extrusion chamber, most of the speed is converted into pressure energy, and then the pressure energy is conveyed out along the discharge pipe.

At this time, the inlet of the impeller is vacuumed or low-pressure due to the discharge of the liquid, the liquid in the liquid suction inlet pool is pressed into the inlet of the impeller under the action of the liquid surface pressure, and the rotating impeller continuously sucks and discharges the liquid. As shown in fig. 1, the existing end suction pump includes a front bearing cap 14, a bearing chamber 2 and a rear bearing cap 3, the front bearing cap 14 and the rear bearing cap 3 are respectively installed at the left and right ends of the bearing chamber 2, the rear bearing cap 3 is detachably connected with the bearing chamber 2 through a bolt, and the front bearing cap 14 is detachably connected at the left side of the bearing chamber 2 through a bolt.

In actual work, because liquid flows between the bearings in the end suction pump, the bearings generate heat, the service life of the bearings is affected, the bearings are frequently replaced, and not only is the bearing difficult, but also certain cost is wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a centrifugal pump is inhaled to end with novel bearing room can effectively carry out cooling to the bearing, improves the life of bearing.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a centrifugal pump is inhaled to end with novel bearing room, includes bracket, bearing room and back bearing cap, the left and right sides at the bearing room is installed respectively to bracket and back bearing cap, integrated into one piece has the front end housing on the bracket, the left end at the bearing room is installed to the front end housing, transversely wear to be equipped with the pump shaft in the bearing room, the both ends of pump shaft are extended the bearing room and are connected with front end housing and back bearing cap respectively, the periphery of bearing room is provided with the cooling chamber, the cooling chamber annular sets up the outside at the bearing room, water inlet and delivery port have been seted up on the cooling chamber, water inlet cover and play water cover are installed respectively to water inlet and delivery port.

Furthermore, the water inlet and the water outlet are respectively arranged at the upper side and the lower side of the bearing chamber.

Furthermore, the bearing chamber is also provided with an exhaust hole, an exhaust pipe is connected in the exhaust hole, and a one-way exhaust valve is installed at the outlet end of the exhaust pipe.

Further, the bracket is detachably connected with the bearing chamber.

Furthermore, the rear bearing cover is detachably connected with the bearing chamber.

Further, mounting holes are formed in the upper end and the lower end of the bracket respectively, and bolts penetrate through the mounting holes.

To sum up, the utility model discloses following beneficial effect has:

1. through the arrangement of the cooling cavity, a worker firstly covers the water outlet on the water outlet, then water enters the cooling cavity through the water inlet, after the water enters, the water inlet cover is covered, and cooling water in the cooling cavity can cool the bearing chamber, so that the phenomenon that the bearing in the bearing chamber is damaged by heat is reduced;

2. through the arrangement of the exhaust hole and the one-way exhaust valve, the ball is rubbed with lubricating oil in the working process of the bearing, so that hot air in the bearing chamber is heated to expand, the air pressure in the bearing chamber is increased at the moment, the hot air in the bearing chamber is exhausted through the one-way exhaust valve, and the phenomenon of high temperature in the bearing chamber is avoided;

3. through the setting of mounting hole, the usable bolt of staff passes the mounting hole and fixes the bracket in corresponding position for the end suction centrifugal pump takes place the phenomenon of vibration in the course of the work.

Drawings

FIG. 1 is a schematic structural view for embodying the background art;

fig. 2 is a schematic view of an overall structure for embodying the present embodiment;

in the figure, 1, a bracket; 2. a bearing chamber; 3. a rear bearing cap; 4. a pump shaft; 5. a cooling chamber; 6. a water inlet; 7. a water outlet; 8. a water inlet cover; 9. a water outlet cover; 10. an exhaust hole; 11. an exhaust pipe; 12. a one-way exhaust valve; 13. mounting holes; 14. a front bearing cover.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example (b):

an end suction centrifugal pump with a novel bearing chamber is shown in figure 2 and comprises a bracket 1, a bearing chamber 2 and a rear bearing cover 3.

As shown in fig. 2, the bracket 1 and the rear bearing cap 3 are respectively installed at the left and right sides of the bearing chamber 2, a front end cover is integrally formed on the bracket 1, the front end cover is installed at the left end of the bearing chamber 2, a pump shaft 4 transversely penetrates through the bearing chamber 2, and two ends of the pump shaft 4 extend out of the bearing chamber 2 and are respectively connected with the front end cover and the rear bearing cap 3.

As shown in fig. 2, a cooling cavity 5 is arranged on the periphery of the bearing chamber 2, the cooling cavity 5 is annularly arranged outside the bearing chamber 2, a water inlet 6 and a water outlet 7 are arranged on the cooling cavity 5, the water inlet 6 and the water outlet 7 are respectively arranged on the upper side and the lower side of the bearing chamber 2, and a water inlet cover 8 and a water outlet cover 9 are respectively arranged on the water inlet 6 and the water outlet 7. Realize that cooling water gets into cooling chamber 5 through water inlet 6, cool down the inside wall in cooling chamber 5 to cooling chamber 5.

As shown in fig. 2, in order to further accelerate the temperature reduction in the bearing chamber 2, the possibility of damage to the bearing due to an excessively high temperature in the bearing chamber 2 is reduced. An exhaust hole 10 is further formed in the bearing chamber 2, an exhaust pipe 11 is connected in the exhaust hole 10, a one-way exhaust valve 12 is installed at the outlet end of the exhaust pipe 11, and the upper air distribution hole 1 and the lower air distribution hole 1 of the bearing chamber 12 are respectively arranged on the upper side and the lower side of the bearing chamber 12. When the temperature of the air in the bearing chamber 2 is high, the pressure in the bearing chamber 2 is higher than the external atmospheric pressure, and the hot air is discharged through the one-way exhaust valve 12, thereby accelerating the cooling of the air in the bearing chamber 2.

As shown in FIG. 2, the bracket 1 is detachably connected with the bearing chamber 2, and the rear bearing cover 3 is detachably connected with the bearing chamber 2, so that the convenience of maintenance of workers can be improved.

As shown in figure 2, because the end suction centrifugal pump can vibrate in the actual use process, the end suction centrifugal pump needs to be fixed, mounting holes 13 are respectively formed in the upper end and the lower end of the bracket 1, bolts penetrate through the mounting holes 13, the end suction centrifugal pump is mounted at a position needing to work through the bolts, and the stability of the end suction centrifugal pump in the working process is improved.

The specific implementation process comprises the following steps: firstly, a worker installs the end suction centrifugal pump at the working position by using a bolt, then screws the water outlet cover 9 on, injects cooling water into the cooling cavity 5 through the water inlet 6, and screws the water inlet cover 8 on after the cooling cavity is filled with the cooling water. The end suction centrifugal pump starts to work, air in the bearing chamber 2 is heated, pressure is enhanced, and the hot air is exhausted along a single direction. The cooling of the bearing chamber 2 is realized.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a centrifugal pump is inhaled to end with novel bearing room which characterized in that: including bracket (1), bearing chamber (2) and back bearing cap (3), the left and right sides in bearing chamber (2) is installed respectively in bracket (1) and back bearing cap (3), integrated into one piece has the front end housing on bracket (1), the left end at bearing chamber (2) is installed to the front end housing, transversely wear to be equipped with pump shaft (4) in bearing chamber (2), the both ends of pump shaft (4) extend bearing chamber (2) and are connected with front end housing and back bearing cap (3) respectively, the periphery of bearing chamber (2) is provided with cooling chamber (5), cooling chamber (5) annular sets up the outside at bearing chamber (2), water inlet (6) and delivery port (7) have been seted up on cooling chamber (5), water inlet cover (8) and play water cover (9) are installed respectively to water inlet (6) and delivery port (7).

2. The end suction centrifugal pump with the novel bearing chamber as claimed in claim 1, wherein: the water inlet (6) and the water outlet (7) are respectively arranged at the upper side and the lower side of the bearing chamber (2).

3. The end suction centrifugal pump with the novel bearing chamber as claimed in claim 1, wherein: still seted up exhaust hole (10) on bearing room (2), exhaust pipe (11) are connected in exhaust hole (10), one-way discharge valve (12) are installed to the exit end of exhaust pipe (11).

4. The end suction centrifugal pump with the novel bearing chamber as claimed in claim 1, wherein: the bracket (1) is detachably connected with the bearing chamber (2).

5. The end suction centrifugal pump with the novel bearing chamber as claimed in claim 1, wherein: the rear bearing cover (3) is detachably connected with the bearing chamber (2).

6. The end suction centrifugal pump with the novel bearing chamber as claimed in claim 1, wherein: mounting holes (13) are respectively formed in the upper end and the lower end of the bracket (1), and bolts penetrate through the mounting holes (13).