CN221033255U

CN221033255U - Splash oil wheel and rotary jet pump

Info

Publication number: CN221033255U
Application number: CN202322874992.8U
Authority: CN
Inventors: 孙元武; 杨千行; 阎魁
Original assignee: Yantai Humon Pumps Co ltd
Current assignee: Yantai Humon Pumps Co ltd
Priority date: 2023-10-25
Filing date: 2023-10-25
Publication date: 2024-05-28
Anticipated expiration: 2033-10-25

Abstract

The utility model relates to an oil splashing wheel and a rotary jet pump, and belongs to the technical field of lubricating parts of pumps. The splash oil wheel comprises a splash oil wheel body, a shaft hole is formed in the middle of the splash oil wheel body, a plurality of arc grooves are formed in two end faces of the splash oil wheel body, the arc grooves are distributed at intervals in a circular array, the edges of the splash oil wheel body are arranged at intervals, and the outline of the radial section of each arc groove is arc-shaped. The rotary jet pump comprises a bearing box body, a front end bearing, a rear end bearing, a front bearing cover, a rear bearing cover and a main shaft, wherein two splash oil wheels are further arranged on the main shaft, the main shaft drives the splash oil wheels to rotate, one splash oil wheel is close to the rear side of the front end bearing, and the other splash oil wheel is close to the front side of the rear end bearing. The splash oil wheel is efficient, can spray lubricating oil on the bearing uniformly and accurately, is high in splash oil efficiency, and effectively avoids excessive lubrication or insufficient lubrication of the bearing.

Description

Splash oil wheel and rotary jet pump

Technical Field

The utility model relates to an oil splashing wheel and a rotary jet pump, and belongs to the technical field of lubricating parts of pumps.

Background

The rotary jet pump is a low-flow high-lift low-specific-speed centrifugal pump, and is a novel high-efficiency product for replacing partial high-speed pumps and multistage pumps. The bearing has various speed increasing modes, such as gears, variable frequency motors and the like, and the bearing can be quickly heated up by long-time high-speed operation, so that a good lubricating structure is urgently needed for cooling.

The temperature of the bearing can be reduced through lubricating oil circulation, the service life of the pump set is prolonged, and the prior art is that the lubricating oil in the lubricating oil pool is brought to the bearing through the oil slinger to lubricate and cool the bearing. According to the matching form with the pump shaft, the oil slinger is divided into a fixed type oil slinger and a sliding type oil slinger, wherein the fixed type oil slinger is generally designed with an inclined plane and is fixed on the pump shaft of the rotary jet pump, and lubricating oil is driven by the inclined plane; the sliding oil slinger is difficult to position during installation, the oil slinger needs to be moved to an operating position through an observation window after the pump is integrally assembled, and when the oil level is slightly high, the resistance is increased, and the rotating effect is not ideal.

Disclosure of utility model

The present utility model aims to provide a new technical solution to improve or solve the technical problems existing in the prior art as described above.

The technical scheme provided by the utility model is as follows: the utility model provides a splash oil wheel, includes splash oil wheel body, splash oil wheel body's centre is equipped with the shaft hole, splash oil wheel body's both ends face is last to all set up a plurality of arc grooves, and a plurality of the arc groove is circular array interval arrangement splash oil wheel body's edge, the radial cross-section's of arc groove profile is the arc.

Further, the axial projection of the arc-shaped groove is fan-shaped.

Further, the included angle alpha of the fan shape is 10-15 degrees.

On the basis of the technical scheme, the utility model can be improved as follows.

The utility model provides a rotary jet pump, includes bearing box, front end bearing, rear end bearing, front end bearing lid, rear bearing lid and main shaft, the both ends of main shaft are in through front end bearing and rear end bearing rotatable the installing on the bearing box respectively, front end bearing lid crimping is in the front end of front end bearing, rear end bearing lid crimping is in the rear end of rear end bearing, the bottom of bearing box still is equipped with the oil bath of splendid attire lubricating oil, still be equipped with two on the main shaft splash the oil wheel, the main shaft drives splash the oil wheel is rotatory, one of them splash the oil wheel is close to the rear side of front end bearing sets up, another splash the oil wheel is close to the front side of rear end bearing sets up.

Furthermore, the front bearing cover and the main shaft are sealed through a labyrinth seal groove, and the rear bearing cover and the main shaft are sealed through a labyrinth seal groove.

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects: the splash oil wheel is efficient, lubricating oil can be uniformly and accurately sprayed onto the bearing, the design of the splash oil wheel is fine, the splash oil efficiency is high, excessive lubrication or insufficient lubrication of the bearing is effectively avoided, the service life of the bearing is prolonged, and the risk of equipment damage is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a splash guard according to the present utility model;

FIG. 2 is an axial projection view of the tanker of the present utility model;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present utility model;

FIG. 4 is a schematic view of the structure of the inside of a bearing housing of the rotary jet pump of the present utility model;

In the figure, 1, a front bearing cover; 2. a front end bearing; 3. a splash oil wheel body; 301. an arc-shaped groove; 302. radial rib plates; 4. a main shaft; 5. a bearing housing; 6. a rear end bearing; 7. an oil pool; 8. and a rear bearing cover.

Detailed Description

The principles and features of the present utility model are described below in connection with examples, which are set forth only to illustrate the present utility model and not to limit the scope of the utility model.

As shown in fig. 1-3, a splash oil wheel comprises a splash oil wheel body 3, wherein a shaft hole is arranged in the middle of the splash oil wheel body 3, a plurality of arc grooves 301 are formed in two end faces of the splash oil wheel body 3, the arc grooves 301 are distributed at intervals in a circular array on the edge of the splash oil wheel body 3, radial rib plates 302 are formed between adjacent arc grooves 301, and the profile of the radial section of each arc groove 301 is arc-shaped (as shown in fig. 3).

In addition, in the present embodiment, the present invention,

The axial projection of the arc-shaped groove 301 is a sector (as shown in fig. 2), and the included angle α of the sector is 10 ° to 15 °.

As shown in fig. 4, a rotary jet pump comprises a bearing box 5, a front end bearing 2, a rear end bearing 6, a front bearing cover 1, a rear bearing cover 8 and a main shaft 4, wherein two ends of the main shaft 4 are rotatably installed on the bearing box 5 through the front end bearing 2 and the rear end bearing 6 respectively, the front bearing cover 1 is in press connection with the front end of the front end bearing 2, the rear bearing cover 8 is in press connection with the rear end of the rear end bearing 6, an oil pool 7 for containing lubricating oil is further arranged at the bottom of the bearing box 5, two splash wheels are further arranged on the main shaft 4, the main shaft 4 drives the splash wheels to rotate, one splash wheel is close to the rear side of the front end bearing 2, and the other splash wheel is close to the front side of the rear end bearing 6. The front bearing cover 1 and the main shaft 4 are sealed through a labyrinth seal groove, and the rear bearing cover 8 and the main shaft 4 are sealed through a labyrinth seal groove.

The working principle of the oil thrower of the utility model is as follows: when the oil pool 7 is filled with lubricating oil, the arc-shaped groove 301 below the splash oil wheel is immersed in the lubricating oil in the oil pool 7, the splash oil wheel is driven by the main shaft 4 to rotate at a high speed, the lubricating oil moves forward in the rotating direction of the splash oil wheel, and simultaneously, the lubricating oil spirally flows forward under the guidance of centrifugal force and the arc-shaped groove 301 (as shown in fig. 3), the lubricating oil is completely driven to be sprayed onto the bearing, and the generated heat is taken away while the bearing is lubricated.

The splash oil wheel is efficient, lubricating oil can be uniformly and accurately sprayed onto the bearing, the design of the splash oil wheel is fine, the splash oil efficiency is high, excessive lubrication or insufficient lubrication of the bearing is effectively avoided, the service life of the bearing is prolonged, and the risk of equipment damage is reduced.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a splash oil wheel, its characterized in that, including splash oil wheel body (3), splash oil wheel body (3) centre is equipped with the shaft hole, all set up a plurality of arc grooves (301) on splash oil wheel body (3) both ends face, a plurality of arc grooves (301) are circular array interval arrangement splash oil wheel body (3) edge, the profile of the radial cross-section of arc groove (301) is the arc.

2. Tanker according to claim 1, characterized in that the axial projection of the arc-shaped groove (301) is sector-shaped.

3. Tanker according to claim 2, wherein the angle α of the sectors is 10 ° to 15 °.

4. The utility model provides a rotary jet pump, its characterized in that, including bearing box (5), front end bearing (2), rear end bearing (6), front bearing cap (1), rear bearing cap (8) and main shaft (4), the both ends of main shaft (4) are respectively through front end bearing (2) and rotatable installing of rear end bearing (6) are in on bearing box (5), front bearing cap (1) crimping is in the front end of front end bearing (2), rear bearing cap (8) crimping is in the rear end of rear end bearing (6), the bottom of bearing box (5) still is equipped with oil bath (7) of splendid attire lubricating oil, still be equipped with two on main shaft (4) splash oil wheels of arbitrary one of them splash oil wheel is close to the rear side of front end bearing (2) sets up, and another splash oil wheel is close to the front side of rear end bearing (6) sets up.

5. Rotary jet pump according to claim 4, characterized in that the sealing between the front bearing cap (1) and the main shaft (4) is achieved by means of a labyrinth seal groove, and the sealing between the rear bearing cap (8) and the main shaft (4) is achieved by means of a labyrinth seal groove.