CN214888343U - Air suspension thrust bearing piece module - Google Patents
Air suspension thrust bearing piece module Download PDFInfo
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- CN214888343U CN214888343U CN202121755536.6U CN202121755536U CN214888343U CN 214888343 U CN214888343 U CN 214888343U CN 202121755536 U CN202121755536 U CN 202121755536U CN 214888343 U CN214888343 U CN 214888343U
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Abstract
The utility model discloses an air suspension thrust bearing piece module, it includes central bearing piece, install in the preceding supporting plate and the back supporting plate of center bearing piece front and back both sides, a plurality of preceding wave paper tinsel of installing in preceding supporting plate trailing flank, paste in preceding wave paper tinsel trailing flank and with the preceding top paper tinsel of center bearing piece leading flank contact, a plurality of back wave paper tinsel of installing in the back supporting plate leading flank, paste in back wave paper tinsel leading flank and with the back top paper tinsel of center bearing piece trailing flank contact, this center bearing piece has the center shaft hole, center bearing piece leading flank is provided with a plurality of sizes and diminishes gradually and is curved first guiding gutters from inside to outside in the periphery of center shaft hole front port, the edge of preceding top paper tinsel and/or preceding supporting plate covers this first guiding gutter; the periphery of the rear end opening of the central bearing sheet on the rear side surface of the central shaft hole is provided with a plurality of arc-shaped second flow guide grooves with the sizes gradually reduced from inside to outside, and the edges of the rear top foil and/or the rear supporting sheet cover the second flow guide grooves.
Description
The technical field is as follows:
the utility model relates to an air suspension thrust bearing piece module.
Background art:
the air suspension foil bearing is a dynamic pressure gas bearing, and is widely applied to turbomachines such as air compressors, air circulators and micro gas turbines due to the characteristics of high temperature resistance, high rotating speed, oil-free lubrication, small friction loss and the like. The air suspension foil bearing utilizes a wedge effect, gas with certain viscosity in the surrounding environment is dragged into a wedge-shaped air cavity formed by the rotor and a bearing supporting surface by the rotor rotating at high speed along with the increase of the rotating speed of the supporting rotor, and when the rotating speed of the rotor is increased to a certain speed, the air pressure of the gas in the wedge-shaped supporting air cavity is increased to support the rotor.
The load-bearing capacity and stability of the existing thrust foil bearing are not ideal.
In view of the above, the present inventors propose the following.
The utility model has the following contents:
an object of the utility model is to overcome prior art not enough, provide an air suspension thrust bearing piece module.
In order to solve the technical problem, the utility model discloses a following technical scheme: the air suspension thrust bearing piece module comprises a central bearing piece, a front supporting piece and a rear supporting piece which are arranged on the front side and the rear side of the central bearing piece, a plurality of front wave foils arranged on the rear side of the front supporting piece, a front top foil attached to the rear side of the front wave foils and contacted with the front side of the central bearing piece, a plurality of rear wave foils arranged on the front side of the rear supporting piece, and a rear top foil attached to the front side of the rear wave foils and contacted with the rear side of the central bearing piece, wherein the central bearing piece is provided with a central shaft hole; the periphery of the rear end opening of the central bearing sheet on the rear side surface of the central shaft hole is provided with a plurality of arc-shaped second flow guide grooves with the sizes gradually reduced from inside to outside, and the edges of the rear top foil and/or the rear supporting sheet cover the second flow guide grooves.
Further, in the above technical solution, the depth of the first guiding gutter gradually becomes shallower from inside to outside; the depth of the second diversion trench becomes shallow gradually from inside to outside.
Further, in the above technical solution, the cross section of the front wave foil is in a continuous wave shape, so that a first wave-shaped gap is formed between the front wave foil and the front support sheet; a second wavy gap is formed between the front wavy foil and the front top foil, and the first wavy gap and the second wavy gap are communicated with the first diversion trench.
Further, in the above technical solution, the cross section of the rear bump foil is in a continuous wave shape, so that a third wave-shaped gap is formed between the rear bump foil and the rear supporting sheet; a fourth wave-shaped gap is formed between the rear wave foil and the rear top foil, and the third wave-shaped gap and the fourth wave-shaped gap are communicated with the second diversion trench.
Further, in the above technical solution, the front wave foil and the back wave foil are both rectangular, and the size of the front wave foil is smaller than that of the front top foil, and the size of the back wave foil is smaller than that of the back top foil.
Further, in the above technical solution, the front top foil and the rear top foil are both fan-shaped, and the front top foils are equally distributed along the circumference; the plurality of rear top foils are equally distributed along the circumference.
Furthermore, in the above technical solution, a plurality of first division bars are formed on the rear side surface of the front support sheet, a plurality of first sectors are formed between the first division bars, the front corrugated foil is disposed in the first sectors, and the front top foil covers the first sectors.
Further, in the above technical solution, a plurality of second separating strips are formed on the front side surface of the rear supporting sheet, a plurality of second sectors are formed between the second separating strips, the rear bump foil is placed in the second sectors, and the rear top foil covers the second sectors.
Further, in the above technical solution, the central bearing piece is formed with a front convex ring and a rear convex ring at the front and rear sides of the central shaft hole; the first flow guide grooves are distributed on the periphery of the front convex ring; the second diversion trenches are distributed on the periphery of the rear convex ring; the front supporting sheet is sleeved on the periphery of the front convex ring; the rear supporting sheet is sleeved on the periphery of the rear convex ring.
After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect: the utility model discloses be provided with a plurality of preceding ripples paper tinsels and preceding top paper tinsel between center bearing piece and preceding supporting plate, and be provided with a plurality of back ripples paper tinsels and back top paper tinsels between center bearing piece and the back supporting plate to two bears around this can realizing, its bearing capacity and stability ideal. Further improve bearing capacity and stability, before the center bearing piece, the trailing flank is provided with a plurality of first guiding gutters and second guiding gutter respectively, and the size of first guiding gutter and second guiding gutter diminishes gradually from inside to outside and is the arc, so that this center bearing piece is when rotatory, gets rid of the preceding ripples paper tinsel and the back ripples paper tinsel with the air from inside to outside respectively through first guiding gutter and second guiding gutter, in order to form more stable air cushion, makes the utility model discloses a bearing capacity is stronger, and stability is more ideal.
Description of the drawings:
fig. 1 is a perspective view of the present invention;
fig. 2 is a perspective view of another perspective of the present invention;
fig. 3 is an exploded perspective view of the present invention;
FIG. 4 is a perspective view of the center bearing piece of the present invention;
fig. 5 is a perspective view of the middle front support plate of the present invention.
The specific implementation mode is as follows:
the present invention will be further described with reference to the following specific embodiments and accompanying drawings.
As shown in fig. 1-5, an air suspension thrust bearing piece module is provided, which includes a central bearing piece 1, a front supporting piece 2 and a rear supporting piece 3 installed at the front and rear sides of the central bearing piece 1, a plurality of front wave foils 4 installed at the rear side of the front supporting piece 2, a front top foil 5 attached to the rear side of the front wave foils 4 and contacting with the front side of the central bearing piece 1, a plurality of rear wave foils 6 installed at the front side of the rear supporting piece 3, and a rear top foil 7 attached to the front side of the rear wave foils 6 and contacting with the rear side of the central bearing piece 1, wherein the central bearing piece 1 has a central shaft hole 11, the front side of the central bearing piece 1 is provided with a plurality of first guiding grooves 12 with gradually reduced size from inside to outside and in an arc shape at the periphery of the front end of the central shaft hole 11, and the first guiding grooves 12 are covered by the edges of the front top foil 5 and/or the front supporting piece 2; the rear side surface of the central bearing piece 1 is provided with a plurality of arc-shaped second flow guide grooves 13 with the size gradually reduced from inside to outside at the periphery of the rear end opening of the central shaft hole 11, and the edges of the rear top foil 7 and/or the rear supporting piece 3 cover the second flow guide grooves 13. The central bearing sheet 1 is sleeved outside the central shaft sleeve through the central shaft hole 11, and a central shaft is arranged in the central shaft sleeve in a penetrating mode. The utility model discloses be provided with a plurality of preceding ripples paper tinsel 4 and preceding top paper tinsel 5 between center bearing piece 1 and preceding supporting plate 2, and be provided with a plurality of back ripples paper tinsel 6 and back top paper tinsel 7 between center bearing piece 1 and the back supporting plate 3 to two bears around this can realizing, its bearing capacity and stability ideal. Further improve bearing capacity and stability, before bearing piece 1, the trailing flank is provided with a plurality of first guiding gutters 12 and second guiding gutter 13 respectively, and the size of first guiding gutter 12 and second guiding gutter 13 diminishes gradually from inside to outside and is the arc, so that this bearing piece 1 is when rotatory, gets rid of the air into preceding ripples paper tinsel 4 and back ripples tinsel 6 from inside to outside respectively through first guiding gutter 12 and second guiding gutter 13, in order to form more stable air cushion, makes the utility model discloses a bearing capacity is stronger, and stability is more ideal.
The depth of the first diversion trench 12 gradually becomes shallow from inside to outside, so that the air thrown out of the first diversion trench 12 from inside to outside is more uniform, and a more stable air cushion is formed; the depth of the second guiding gutter 13 becomes gradually shallow from inside to outside, so that the air thrown out of the second guiding gutter 13 from inside to outside is more uniform, and a more stable air cushion is formed.
The section of the front wave foil 4 is in a continuous wave shape, so that a first wave-shaped gap is formed between the front wave foil 4 and the front support sheet 2, so as to form a wave-shaped air cushion; a second wave-shaped gap is formed between the front wave foil 4 and the front top foil 5 so as to form a wave-shaped air cushion, and the first wave-shaped gap and the second wave-shaped gap are both communicated with the first diversion trench 12.
The section of the rear wave foil 6 is in a continuous wave shape, so that a third wave-shaped gap is formed between the rear wave foil 6 and the rear supporting sheet 3 so as to form a wave-shaped air cushion; a fourth wave gap is formed between the rear wave foil 6 and the rear top foil 7 so as to form a wave air cushion, and the third wave gap and the fourth wave gap are both communicated with the second diversion trench 13.
The front wave foil 4 and the back wave foil 6 are rectangular, the size of the front wave foil 4 is smaller than that of the front top foil 5, and the size of the back wave foil 6 is smaller than that of the back top foil 7. The front top foil 5 and the rear top foil 7 are both in a fan shape, and the front top foils 5 are uniformly distributed according to the circumference; several rear top foils 7 are equally distributed circumferentially.
A plurality of first division bars 21 are formed on the rear side surface of the front support sheet 2, a plurality of first fan-shaped areas 22 are formed between the first division bars 21, the front corrugated foil 4 is arranged in the first fan-shaped areas 22, and the front top foil 5 covers the first fan-shaped areas 22, so that the front corrugated foil 4 and the front top foil 5 are stably assembled in the first fan-shaped areas 22.
The front side of the rear supporting sheet 3 is formed with a plurality of second separating strips 31, a plurality of second sectors 32 are formed between the second separating strips 31, the rear bump foil 6 is placed in the second sectors 32, and the rear top foil 7 covers the second sectors 32.
The front convex ring 14 and the rear convex ring 15 are distributed and formed on the front side and the rear side of the central shaft hole 11 of the central bearing sheet 1; the first diversion trenches 12 are distributed on the periphery of the front convex ring 14, so that the assembly structure is more stable; the second diversion trenches 13 are distributed on the periphery of the rear convex ring 15; the front supporting sheet 2 is sleeved on the periphery of the front convex ring 14; the rear supporting plate 3 is sleeved on the periphery of the rear convex ring 15, and the assembly structure is more stable.
To sum up, the utility model discloses be provided with a plurality of preceding ripples paper tinsel 4 and preceding top paper tinsel 5 between center bearing piece 1 and preceding supporting plate 2, and be provided with a plurality of back ripples paper tinsel 6 and back top paper tinsel 7 between center bearing piece 1 and the back supporting plate 3 to two bears around this can realizing, its bearing capacity and stability ideal. Further improve bearing capacity and stability, before bearing piece 1, the trailing flank is provided with a plurality of first guiding gutters 12 and second guiding gutter 13 respectively, and the size of first guiding gutter 12 and second guiding gutter 13 diminishes gradually from inside to outside and is the arc, so that this bearing piece 1 is when rotatory, gets rid of the air into preceding ripples paper tinsel 4 and back ripples tinsel 6 from inside to outside respectively through first guiding gutter 12 and second guiding gutter 13, in order to form more stable air cushion, makes the utility model discloses a bearing capacity is stronger, and stability is more ideal.
Of course, the above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes and modifications made by the constructions, features, and principles of the present invention in accordance with the claims of the present invention are intended to be included in the scope of the present invention.
Claims (9)
1. The utility model provides an air suspension thrust bearing piece module which characterized in that: which comprises a central bearing sheet (1), a front supporting sheet (2) and a rear supporting sheet (3) which are arranged at the front side and the rear side of the central bearing sheet (1), a plurality of front corrugated foils (4) which are arranged at the rear side of the front supporting sheet (2), a front top foil (5) which is pasted at the rear side of the front corrugated foils (4) and is contacted with the front side of the central bearing sheet (1), a plurality of rear corrugated foils (6) which are arranged at the front side of the rear supporting sheet (3), and a rear top foil (7) which is pasted at the front side of the rear corrugated foils (6) and is contacted with the rear side of the central bearing sheet (1), the central bearing sheet (1) is provided with a central shaft hole (11), a plurality of first flow guide grooves (12) with the sizes gradually reduced from inside to outside and arc shapes are arranged on the front side surface of the central bearing sheet (1) at the periphery of the front end opening of the central shaft hole (11), the edge of the front top foil (5) and/or the front support sheet (2) covers the first diversion trench (12); the periphery of port is provided with a plurality of sizes and diminishes and be curved second guiding gutter (13) from inside to outside gradually in central shaft hole (11) rear side face (1), the edge of back top foil (7) and/or back supporting plate (3) covers this second guiding gutter (13).
2. The aero-levitation thrust bearing pad module of claim 1, wherein: the depth of the first diversion trench (12) is gradually reduced from inside to outside; the depth of the second diversion trench (13) is gradually reduced from inside to outside.
3. The aero-levitation thrust bearing pad module of claim 1, wherein: the section of the front wave foil (4) is in a continuous wave shape, so that a first wave-shaped gap is formed between the front wave foil (4) and the front supporting sheet (2); a second wave-shaped gap is formed between the front wave foil (4) and the front top foil (5), and the first wave-shaped gap and the second wave-shaped gap are both communicated with the first diversion trench (12).
4. The aero-levitation thrust bearing pad module of claim 1, wherein: the section of the rear wave foil (6) is in a continuous wave shape, so that a third wave-shaped gap is formed between the rear wave foil (6) and the rear supporting sheet (3); a fourth wave-shaped gap is formed between the rear wave foil (6) and the rear top foil (7), and the third wave-shaped gap and the fourth wave-shaped gap are communicated with the second diversion trench (13).
5. An aero-levitation thrust bearing pad module according to any one of claims 1 to 4, wherein: the front wave foil (4) and the rear wave foil (6) are rectangular, the size of the front wave foil (4) is smaller than that of the front top foil (5), and the size of the rear wave foil (6) is smaller than that of the rear top foil (7).
6. The aero-levitation thrust bearing pad module of claim 5, wherein: the front top foil (5) and the rear top foil (7) are both in a fan shape, and the front top foils (5) are uniformly distributed according to the circumference; the rear top foils (7) are equally distributed along the circumference.
7. The aero-levitation thrust bearing pad module of claim 6, wherein: a plurality of first separating strips (21) are formed on the rear side face of the front supporting sheet (2), a plurality of first fan-shaped areas (22) are formed among the first separating strips (21), the front corrugated foil (4) is placed in the first fan-shaped areas (22), and the front top foil (5) covers the first fan-shaped areas (22).
8. The aero-levitation thrust bearing pad module of claim 6, wherein: a plurality of second separating strips (31) are formed on the front side surface of the rear supporting sheet (3), a plurality of second fan-shaped areas (32) are formed among the second separating strips (31), the rear bump foil (6) is placed in the second fan-shaped areas (32), and the rear top foil (7) covers the second fan-shaped areas (32).
9. The aero-levitation thrust bearing pad module of claim 6, wherein: the front convex ring (14) and the rear convex ring (15) are distributed and formed on the front side and the rear side of the central shaft hole (11) of the central bearing sheet (1); the first guide grooves (12) are distributed on the periphery of the front convex ring (14); the second guide grooves (13) are distributed on the periphery of the rear convex ring (15); the front supporting sheet (2) is sleeved on the periphery of the front convex ring (14); the rear supporting sheet (3) is sleeved on the periphery of the rear convex ring (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121755536.6U CN214888343U (en) | 2021-07-29 | 2021-07-29 | Air suspension thrust bearing piece module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121755536.6U CN214888343U (en) | 2021-07-29 | 2021-07-29 | Air suspension thrust bearing piece module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214888343U true CN214888343U (en) | 2021-11-26 |
Family
ID=78926521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121755536.6U Active CN214888343U (en) | 2021-07-29 | 2021-07-29 | Air suspension thrust bearing piece module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214888343U (en) |
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2021
- 2021-07-29 CN CN202121755536.6U patent/CN214888343U/en active Active
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