CN210265244U - Bearing body structure of double-suction pump - Google Patents

Abstract

The utility model discloses a bearing body structure of a double suction pump, which comprises a pump shaft, a bearing gland, an oil slinger, an oil ring seat and a labyrinth ring; the bearing gland, the bearing, the oil ring seat and the labyrinth ring are sequentially arranged on the pump shaft, and the oil slinger is arranged on the oil ring seat; a labyrinth groove is formed in the contact area of the bearing gland and the pump shaft, and a drainage groove is formed in the adjacent area of the bearing gland and the bearing; the labyrinth ring is provided with a labyrinth groove in the area contacting with the pump shaft, and a drainage groove in the area adjacent to the oil ring seat. The utility model discloses a double entry pump bearing body structure is sealed good, moves the safety and stability, and work efficiency is high.

Description

Bearing body structure of double-suction pump

Technical Field

The utility model relates to a fluid machinery technical field, more specifically relates to a bearing body structure of double entry pump.

Background

The double-suction pump is widely applied to industrial and urban water supply and drainage, can be used as a pump for water drainage or water supply in factories, cities, power stations, hydraulic engineering and the like, and can also be used for field irrigation. The leakage of the lubricating oil in the bearing body of the double-suction pump can bring great harm to the operation of the pump, and the stability and the safety of the operation of the pump are influenced. Lubricating oil leakage of a double-suction pump bearing body structure in the prior art is serious, operation is unstable, and frequent maintenance is required.

Therefore, the development of a novel bearing body structure of the double suction pump, which can reduce the leakage amount of the lubricating oil and operate safely and stably, is urgently needed in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sealed good, operation safety and stability, the high double entry pump bearing body structure of work efficiency.

The utility model provides a bearing body structure of a double suction pump, which comprises a pump shaft, a bearing gland, an oil slinger, an oil ring seat and a labyrinth ring; the bearing gland, the bearing, the oil ring seat and the labyrinth ring are sequentially arranged on the pump shaft, and the oil slinger is arranged on the oil ring seat; a labyrinth groove is formed in the contact area of the bearing gland and the pump shaft, and a drainage groove is formed in the adjacent area of the bearing gland and the bearing; the labyrinth ring with the area of pump shaft contact is equipped with the labyrinth groove, the labyrinth ring with the area that the oil ring seat is adjacent is equipped with the drainage groove.

In another preferred embodiment, the labyrinth groove comprises a plurality of sparse teeth.

In another preferred example, the distance between two adjacent sparse teeth satisfies: d is more than or equal to 3mm and less than or equal to 5 mm.

In another preferred example, the height h of the thinning teeth satisfies: h is more than or equal to 2mm and less than or equal to 4 mm.

In another preferred embodiment, the drainage groove is a circular arc concave cavity.

In another preferred example, a first baffle disc is mounted on the pump shaft on one side of the bearing gland, which is far away from the bearing.

In another preferred example, a second baffle disc is installed on the pump shaft on the side, away from the oil ring seat, of the labyrinth ring.

In another preferred example, the bearing body is sleeved on the bearing.

In another preferred example, the labyrinth ring is sleeved with a bearing cover.

In another preferred embodiment, the structure is externally provided with a cooling chamber cover.

It is understood that within the scope of the present invention, the above-mentioned technical features of the present invention and those specifically described below (e.g. in the examples) can be combined with each other to constitute new or preferred technical solutions. Not to be reiterated herein, but to the extent of space.

Drawings

Fig. 1 is a cross-sectional view of a typical bearing body structure of a double suction pump of the present invention;

fig. 2 is a cross-sectional view of a typical labyrinth slot and flow-guiding slot structure of the present invention.

The various references in the drawings are:

1: a bearing;

2: a first baffle plate;

3: a bearing gland;

4: a bearing body;

5: a cooling chamber cover;

6: an oil slinger;

7: a labyrinth ring;

8: a pump shaft;

9: a second baffle disc;

10: an oil ring seat;

11: a bearing cap;

i: a labyrinth groove;

II: and (4) a drainage groove.

Detailed Description

The inventor of the invention develops a bearing body structure of a double-suction pump with good sealing, reduced lubricating oil leakage and stable and reliable operation for the first time through extensive and deep research. The utility model discloses a design a neotype bearing gland and labyrinth ring, reduce lubricating oil and let out leakage quantity, improve the condition that traditional structure lubricating oil revealed seriously, accomplished on this basis the utility model discloses a bearing gland and labyrinth ring.

Term(s) for

As used herein, the term "double suction pump" refers to a single stage double suction mid-open centrifugal pump.

As used herein, the term "labyrinth groove" refers to a labyrinth-type seal groove.

As used herein, the term "drainage channel" refers to a channel-like structure that serves to collect and drain lubricating oil.

The utility model discloses a main advantage includes:

(a) the utility model discloses a novel bearing body structure for lubricating thin oil of a double suction pump;

(b) redundant lubricating oil is collected, and leakage is reduced;

(c) the labyrinth ring and the baffle plate are sealed in a double mode, and the sealing effect is more reliable.

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The experimental procedures, in which specific conditions are not noted in the following examples, are generally carried out under conventional conditions or conditions recommended by the manufacturers. Unless otherwise indicated, percentages and parts are percentages and parts by weight.

It is to be noted that in the claims and the description of the present patent, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, same element in a process, method, article, or apparatus that comprises the element.

Examples

As shown in fig. 1, the bearing body structure of a typical double suction pump of the present invention includes a pump shaft 8, a bearing 1, a bearing gland 3, an oil slinger 6, an oil ring seat 10 and a labyrinth ring 7; wherein, bearing gland 3, bearing 1, oil ring seat 10, labyrinth ring 7 are installed on pump shaft 8 in proper order, and oil slinger 6 is installed on oil ring seat 10. A labyrinth groove I is formed in the contact area of the bearing gland 3 and the pump shaft 8, and a drainage groove II is formed in the adjacent area of the bearing gland 3 and the bearing 1; the labyrinth ring 7 is equipped with labyrinth groove I with the region of pump shaft 8 contact, and the region that labyrinth ring 7 and oil ring seat 10 are adjacent is equipped with drainage groove II. Labyrinth groove I includes a plurality of sparse teeth. And the drainage groove II is an arc concave cavity. And a first baffle plate 2 is arranged on one side of the bearing gland 3 away from the bearing 1. A second baffle disc 9 is arranged on the pump shaft 8 and on one side of the labyrinth ring 7 far away from the oil ring seat 10. The bearing 1 is sleeved with a bearing body 4. The labyrinth ring 7 is sleeved with a bearing cover 11. In addition to the structure, a cooling chamber cover 5 is erected on the bearing body 4 and the bearing cover 11.

The utility model discloses in, the multiplicable resistance to the lubricating oil of leaking of labyrinth groove on bearing gland and the labyrinth ring reduces and lets out leakage quantity. The cavity of drainage groove can save a certain amount of lubricating oil, has avoided lubricating oil directly to get rid of the maze groove, has further controlled revealing of lubricating oil.

All documents mentioned in this application are incorporated by reference into this application as if each were individually incorporated by reference. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the above teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

Claims (10)

1. A double suction pump bearing body structure is characterized in that the bearing body structure comprises a pump shaft, a bearing gland, an oil slinger, an oil ring seat and a labyrinth ring;

the bearing gland, the bearing, the oil ring seat and the labyrinth ring are sequentially arranged on the pump shaft, and the oil slinger is arranged on the oil ring seat;

a labyrinth groove is formed in the contact area of the bearing gland and the pump shaft, and a drainage groove is formed in the adjacent area of the bearing gland and the bearing;

the labyrinth ring with the area of pump shaft contact is equipped with the labyrinth groove, the labyrinth ring with the area that the oil ring seat is adjacent is equipped with the drainage groove.

2. The structure of claim 1, wherein the labyrinth grooves include a plurality of sparse teeth.

3. The structure of claim 2, wherein the spacing between two adjacent sparse teeth is such that: d is more than or equal to 3mm and less than or equal to 5 mm.

4. The structure of claim 2, wherein the height h of the sparse teeth satisfies: h is more than or equal to 2mm and less than or equal to 4 mm.

5. The structure of claim 1, wherein the drainage channels are arcuate concave cavities.

6. The structure of claim 1, wherein a first baffle disc is mounted on the pump shaft on a side of the bearing gland away from the bearing.

7. The structure of claim 1, wherein a second baffle disc is mounted on the pump shaft on a side of the labyrinth ring remote from the oil ring seat.

8. The structure of claim 1, wherein a bearing body is sleeved on the bearing.

9. The structure of claim 1, wherein a bearing cap is sleeved on the labyrinth ring.

10. The structure of claim 1, wherein a cooling chamber cover is provided outside the structure.

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