CN220956032U - Sealing structure between multistage rotary plate pump stages - Google Patents
Sealing structure between multistage rotary plate pump stages Download PDFInfo
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- CN220956032U CN220956032U CN202322758324.9U CN202322758324U CN220956032U CN 220956032 U CN220956032 U CN 220956032U CN 202322758324 U CN202322758324 U CN 202322758324U CN 220956032 U CN220956032 U CN 220956032U
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- 238000007789 sealing Methods 0.000 title claims abstract description 77
- 238000004146 energy storage Methods 0.000 claims abstract description 33
- 238000002955 isolation Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 23
- 239000010687 lubricating oil Substances 0.000 description 8
- 238000004891 communication Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001595 flow curve Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Rotary Pumps (AREA)
Abstract
The utility model belongs to the technical field of design of rotary plate pumps, and discloses a multistage rotary plate pump inter-stage sealing structure which comprises a rotor, a low-pressure bearing, a high-pressure bearing, a low-pressure stator, a high-pressure stator, a sealing ring and a spring energy storage sealing ring, wherein the low-pressure stator is a stator of a multistage rotary plate pump oil return stage; the end faces of the low-pressure bearing and the high-pressure bearing are contacted, and the spring energy storage sealing ring is arranged between the low-pressure bearing and the high-pressure bearing. The utility model can meet the inter-stage sealing of the multi-stage rotary plate pump.
Description
Technical Field
The utility model belongs to the technical field of design of rotary plate pumps, relates to a connecting structure between multistage rotary plate pumps, and particularly relates to a sealing structure between multistage rotary plate pumps.
Background
The rotary plate pump is an important component of an aircraft engine lubricating oil system and is mainly used for conveying and recovering lubricating oil of engine bearings and transmission gear parts.
When the product works, the oil supply and return level lubricating oil communication is prevented through the interstage sealing structure. The inter-stage sealing structure of the in-country rotary plate pump is usually a shaft and an integrated bearing, and then is sealed by adopting a sealing ring, and the sealing structure can only meet the inter-stage sealing of a secondary rotary plate pump and cannot meet the inter-stage sealing of a multi-stage rotary plate pump with three stages or more. Therefore, a sealing structure between the multistage rotary plate pump stages is needed to ensure the sealing between the oil supply and return stages of the product, and the service life of the product is prolonged.
Disclosure of utility model
The purpose of the utility model is that: the sealing structure between the multistage rotary plate pumps is provided, is used on the multistage rotary plate pumps with three or more stages, and can effectively prevent the lubricating oil communication between the product oil supply and return stages.
The technical scheme of the utility model is as follows:
The utility model provides a multistage spiral plate pump inter-stage seal structure, which comprises a rotor, low pressure bearing, high pressure bearing, low pressure stator, high pressure stator, sealing washer and spring energy storage sealing washer, low pressure stator is the stator of multistage spiral plate pump return oil level, high pressure stator is the stator of multistage spiral plate pump oil feeding level, separate through low pressure bearing and high pressure bearing between low pressure stator and the high pressure stator, the rotor is established in low pressure stator, low pressure bearing, high pressure bearing and high pressure stator, the sealing washer is established between the outside of low pressure stator and high pressure stator and is used for the quiet sealed isolation of two outer lane parts, spring energy storage sealing washer is established between the outside of low pressure stator and high pressure stator and is used for the dynamic sealed isolation that two inner circle parts contacted with the rotor; the end faces of the low-pressure bearing and the high-pressure bearing are contacted, and the spring energy storage sealing ring is arranged between the low-pressure bearing and the high-pressure bearing.
Furthermore, the inner side of one end of the low-pressure bearing, which faces the high-pressure bearing, is provided with a double-ring-shaped groove, and the spring energy storage sealing ring is arranged in the double-ring-shaped groove.
Further, the low-pressure bearing is provided with an annular groove towards the outer side of one end of the low-pressure stator, and the sealing ring is arranged in the annular groove.
Further, the rotor is a split type rotor and comprises a low-pressure rotor, a high-pressure rotor and a spline, the low-pressure rotor and the high-pressure rotor are connected through the spline, the spline is an internal spline, and the spline connection part of the low-pressure rotor and the high-pressure rotor is arranged at the inner side of the low-pressure bearing.
Furthermore, the low-pressure rotor is of a structure with an oil through hole inside, the spline is of a hollow structure, and an oil through groove is formed in an inner side groove of a double-ring-shaped groove of the low-pressure bearing and is matched with the spring energy storage sealing ring to lubricate the spring energy storage sealing ring, so that the spring energy storage sealing ring can work for a long time; the spline connection of the low-pressure rotor and the high-pressure rotor is arranged on the same shaft upwards through the oil groove, namely the rear end face of the low-pressure rotor and the front end face of the high-pressure rotor are arranged on the same shaft upwards through the oil groove.
Furthermore, the spring energy storage sealing ring is specifically a sealing leather cup structure.
The utility model has the technical effects that:
1. the split type interstage sealing structure of the multistage rotary plate pump has the main innovation point that interstage sealing of the multistage rotary plate pump can be met, product oil supply and return oil can be effectively isolated, and reliable sealing is realized.
2. The utility model provides a new thought for the interstage sealing of similar products such as a multistage rotary plate pump.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings required to be used in the embodiments of the present utility model, and it is obvious that the drawings described below are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
FIG. 3 is a schematic view of a split bearing;
FIG. 4 is a schematic view of a low pressure rotor design of a split rotor of the present utility model;
FIG. 5 is a schematic illustration of the high pressure rotor design of the split rotor of the present utility model;
the device comprises a 1-low pressure rotor, a 2-low pressure bearing, a 3-high pressure bearing, a 4-high pressure rotor, a low pressure stator, a 6-sealing ring, a 7-spline, an 8-spring energy storage sealing ring and a 9-high pressure stator, wherein the high pressure rotor is connected with the high pressure rotor;
The arrows in fig. 1 indicate the direction of the flow of the lubricating oil.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without making any inventive effort are intended to fall within the scope of the present utility model.
Features and exemplary embodiments of various aspects of the utility model are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the utility model by showing examples of the utility model. The present utility model is in no way limited to any particular arrangement and method set forth below, but rather covers any adaptations, alternatives, and modifications of structure, method, and device without departing from the spirit of the utility model. In the drawings and the following description, well-known structures and techniques have not been shown in detail in order not to unnecessarily obscure the present utility model.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other, and the embodiments may be referred to and cited with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Example 1:
The utility model provides a multistage spiral plate pump inter-stage seal structure, which comprises a rotor, low pressure bearing 2, high pressure bearing 3, low pressure stator 5, high pressure stator 9, sealing washer 6 and spring energy storage sealing washer 8, low pressure stator 5 is the stator of multistage spiral plate pump return oil stage, high pressure stator 9 is the stator of multistage spiral plate pump oil feeding stage, separate through low pressure bearing 2 and high pressure bearing 3 between low pressure stator 5 and the high pressure stator 9, the rotor is established in low pressure stator 5, low pressure bearing 2, high pressure bearing 3 and high pressure stator 9, sealing washer 6 is established between the outside of low pressure stator 5 and high pressure stator 9 and is used for the quiet sealed isolation of both outer lane parts, spring energy storage sealing washer 8 is established between the outside of low pressure stator 5 and high pressure stator 9 and is used for the dynamic sealed isolation that both inner circle parts contacted with the rotor; the end faces of the low-pressure bearing 2 and the high-pressure bearing 3 are in contact, and a spring energy storage sealing ring 8 is arranged between the low-pressure bearing 2 and the high-pressure bearing 3.
The inner side of one end of the low-pressure bearing 2, which faces the high-pressure bearing 3, is provided with a double annular groove, and a spring energy storage sealing ring 8 is arranged in the double annular groove.
The low-pressure bearing 2 is provided with an annular groove towards the outer side of one end of the low-pressure stator 5, and a sealing ring 6 is arranged in the annular groove.
The rotor is split type rotor, including low pressure rotor 1, high pressure rotor 4 and spline 7, low pressure rotor 1 and high pressure rotor 4 pass through spline 7 and connect, and spline 7 is the internal spline, and the spline junction of low pressure rotor 1 and high pressure rotor 4 is established in low pressure bearing 2 inboard.
The low-pressure rotor 1 is of a structure with an oil through hole inside, the spline 7 is of a hollow structure, an oil through groove is formed in an inner side groove of a double-ring-shaped groove of the low-pressure bearing 2 and is matched with the spring energy storage sealing ring 8, the spring energy storage sealing ring 8 is lubricated, and the spring energy storage sealing ring 8 can work for a long time; the spline connection of the low-pressure rotor 1 and the high-pressure rotor 4 is arranged on the same shaft upward through the oil groove, namely, the rear end surface of the low-pressure rotor 1 and the front end surface of the high-pressure rotor 4 are arranged on the same shaft upward through the oil groove.
The spring energy storage sealing ring 8 is specifically a sealing cup structure.
Example 2:
A sealing structure used between pump stages of a multistage rotary plate comprises a split bearing, a split rotor, a stator, a spline, an elastic energy storage sealing ring and a sealing ring; the multistage rotary plate pump adopts a split type interstage sealing structure of dynamic sealing and static sealing to seal, and oil supply and oil return stages of products are prevented from being communicated. The bearing is designed to be split, so that the installability of the spring energy storage sealing ring is ensured, an oil groove is formed in one bearing, the lubricating oil is leaked to the spline through the gap between the stator and the end face of the bearing, the spline is designed to be a hollow structure, and the lubricating oil lubricates the spring energy storage sealing ring from the oil groove of the bearing; the spring energy storage sealing ring can work for a long time; the sealing ring is designed on the bearing and is matched with the oil well hole of the shell to form static seal. Through split type interstage seal structure, increase the seal mode that static seal and dynamic seal combine simultaneously, realize multistage rotatory board pump inter-stage seal, effectively prevent the product and supply, the lubricating oil communication between the return oil level.
The low-pressure bearing 2 and the high-pressure bearing 3 are designed into split structures, and a spring energy storage sealing ring 8 is arranged on the low-pressure bearing 2 to realize dynamic sealing;
An oil groove is formed in the low-pressure bearing 2 and matched with the spring energy storage sealing ring 8, so that lubrication is realized.
The low-pressure rotor 1 and the high-pressure rotor 4 are designed to be of split type structures, and product transmissibility is achieved through the spline 7.
FIG. 1 is a schematic perspective view of an interstage seal structure of a multistage rotary plate pump according to the present utility model;
as shown in figure 2 which is a cross-sectional view of the interstage seal structure of the multistage rotary plate pump of the present utility model,
The metering pump adopts a vortex pump in the structural form, is used for metering the fuel flow and adopts the metering principle that: and obtaining the rotating speed, selecting a pressure difference-flow curve corresponding to the rotating speed, and obtaining the flow according to the pressure difference.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can easily think about various equivalent modifications or substitutions within the technical scope of the present utility model, and these modifications or substitutions should be covered in the scope of the present utility model.
Claims (6)
1. The utility model provides a multistage spiral plate pump inter-stage seal structure which is characterized in that, including the rotor, low pressure bearing (2), high pressure bearing (3), low pressure stator (5), high pressure stator (9), sealing washer (6) and spring energy storage sealing washer (8), low pressure stator (5) are multistage spiral plate pump return oil level's stator, high pressure stator (9) are multistage spiral plate pump oil supply level's stator, separate through low pressure bearing (2) and high pressure bearing (3) between low pressure stator (5) and high pressure stator (9), the rotor is established in low pressure stator (5), low pressure bearing (2), high pressure bearing (3) and high pressure stator (9), sealing washer (6) are established between the outside of low pressure stator (5) and high pressure stator (9) and are used for the quiet sealed isolation of both outer lane parts, spring energy storage sealing washer (8) are established between the outside of low pressure stator (5) and high pressure stator (9) and are used for the dynamic sealed isolation of both inner circle parts and rotor contact; the end faces of the low-pressure bearing (2) and the high-pressure bearing (3) are in contact, and the spring energy storage sealing ring (8) is arranged between the low-pressure bearing (2) and the high-pressure bearing (3).
2. The multistage rotary plate pump inter-stage sealing structure according to claim 1, wherein a double-ring-shaped groove is formed in the inner side of one end of the low-pressure bearing (2) facing the high-pressure bearing (3), and a spring energy storage sealing ring (8) is arranged in the double-ring-shaped groove.
3. The multistage rotary plate pump inter-stage sealing structure according to claim 1, wherein an annular groove is formed in the outer side of one end of the low-pressure bearing (2) towards the low-pressure stator (5), and a sealing ring (6) is arranged in the annular groove.
4. The multistage rotary plate pump inter-stage sealing structure according to claim 2, wherein the rotor is a split rotor and comprises a low-pressure rotor (1), a high-pressure rotor (4) and a spline (7), the low-pressure rotor (1) and the high-pressure rotor (4) are connected through the spline (7), the spline (7) is an internal spline, and a spline connection part of the low-pressure rotor (1) and the high-pressure rotor (4) is arranged on the inner side of the low-pressure bearing (2).
5. The multistage rotary plate pump inter-stage sealing structure according to claim 4, wherein the low-pressure rotor (1) is of a structure with oil holes inside, the spline (7) is of a hollow structure, the inner side groove of the double-ring-shaped groove of the low-pressure bearing (2) is provided with an oil passing groove, and the oil passing groove is matched with the spring energy storage sealing ring (8) to lubricate the spring energy storage sealing ring (8) so that the spring energy storage sealing ring (8) can work for a long time; the spline connection of the low-pressure rotor (1) and the high-pressure rotor (4) is arranged on the same axial direction of the oil passing groove, namely, the rear end surface of the low-pressure rotor (1) and the front end surface of the high-pressure rotor (4) are arranged on the same axial direction of the oil passing groove.
6. The multistage rotary plate pump inter-stage sealing structure according to claim 1, wherein the spring energy storage sealing ring (8) is specifically a sealing cup structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322758324.9U CN220956032U (en) | 2023-10-13 | 2023-10-13 | Sealing structure between multistage rotary plate pump stages |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322758324.9U CN220956032U (en) | 2023-10-13 | 2023-10-13 | Sealing structure between multistage rotary plate pump stages |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220956032U true CN220956032U (en) | 2024-05-14 |
Family
ID=90980926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322758324.9U Active CN220956032U (en) | 2023-10-13 | 2023-10-13 | Sealing structure between multistage rotary plate pump stages |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220956032U (en) |
-
2023
- 2023-10-13 CN CN202322758324.9U patent/CN220956032U/en active Active
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