CN218266349U - High-speed rotor of air compressor - Google Patents
High-speed rotor of air compressor Download PDFInfo
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- CN218266349U CN218266349U CN202222549758.3U CN202222549758U CN218266349U CN 218266349 U CN218266349 U CN 218266349U CN 202222549758 U CN202222549758 U CN 202222549758U CN 218266349 U CN218266349 U CN 218266349U
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Abstract
The utility model provides a high-speed rotor of air compressor machine, includes middle sleeve, installation magnet steel in the middle sleeve, the both ends of magnet steel are equipped with the dabber respectively, and the dabber is equipped with the one end outside of being close to the magnet steel and compresses tightly the axle sleeve, compresses tightly axle sleeve and middle sleeve fixed connection, compresses tightly the axle sleeve and is used for compressing tightly dabber and magnet steel fixedly, compress tightly the axle sleeve and be high temperature resistant non-magnetic material with middle sleeve, the surface that compresses tightly the axle sleeve is equipped with wear-resistant coating. The dabber with both sides is compressed tightly fixedly with the magnet steel respectively through the axle sleeve that compresses tightly of both sides, compress tightly the axle sleeve again with middle sleeve fixed connection, the assembly process has been simplified, the packaging efficiency has been improved, the surface that compresses tightly the axle sleeve is equipped with wear-resistant coating, wear-resistant coating and radial air bearing contact, wear resistance promotes greatly, rotor wear has been avoided, the rotation precision has been promoted, compress tightly the axle sleeve and be high temperature resistant non-magnetic material with middle sleeve, rotor outside heating has been avoided, the condition that rotor temperature risees, the life of rotor has been guaranteed.
Description
The technical field is as follows:
the utility model relates to an air compressor machine high-speed rotor.
Background art:
in a high-speed centrifugal compressor, the structural form of a rotor plays a significant role in increasing the rotational speed. In the traditional rotor, magnetic steel is arranged inside the traditional rotor, and the magnetic steel is coated outside the magnetic steel through a high-temperature resistant non-magnetic material, but the existing rotor mounting structure is complex, the rotor in the high-speed centrifugal compressor is supported through a radial air bearing, the outer surface of the rotor is in contact with the air bearing, and the rotor is easily abraded after a long time, so that the rotation precision is influenced; when the rotor is at a high rotating speed for a long time, the rotor is heated outside, the temperature of the rotor rises, and when the temperature of the rotor is too high, the rotor is easily deformed, and the service life of the rotor is influenced. In addition, the existing rotor has poor bilateral symmetry, different weights on the left side and the right side and poor balance, and when the rotor rotates at high speed under the condition of hundreds of thousands of rotating speeds, the difference between the left side and the right side is amplified, the stability of the rotor is influenced, and the improvement of the rotating speed of the rotor is also influenced to a certain extent.
In summary, the rotor problem of the high-speed centrifugal compressor has become an urgent technical problem to be solved in the industry.
The utility model has the following contents:
the utility model discloses a remedy prior art not enough, provide an air compressor machine high speed rotor, solved the not stand wear and tear problem of rotor surface and air bearing contact, solved the outside heat production of rotor, rotor temperature rise, influence life-span problem.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:
the utility model provides a high-speed rotor of air compressor machine, includes middle sleeve, installation magnet steel in the middle sleeve, the both ends of magnet steel are equipped with the dabber respectively, and the dabber is equipped with the one end outside of being close to the magnet steel and compresses tightly the axle sleeve, compresses tightly axle sleeve and middle sleeve fixed connection, compresses tightly the axle sleeve and is used for compressing tightly dabber and magnet steel fixedly, compress tightly the axle sleeve and be high temperature resistant non-magnetic material with middle sleeve, the surface that compresses tightly the axle sleeve is equipped with wear-resistant coating.
The magnetic steel is arranged in the middle of the inner part of the middle sleeve, and the mandrels at two ends of the magnetic steel and the pressing shaft sleeves are symmetrically arranged.
The outer surface of the mandrel is provided with a shoulder, the inner side of the compressing shaft sleeve is provided with a baffle table, and the mandrel and the compressing shaft sleeve are in interference fit press-fitting connection.
The compressing shaft sleeve is inserted into the middle sleeve, the compressing shaft sleeve and the middle sleeve are in press fit and connection in an interference fit mode, and the outer edge of the connection position is welded and fixed.
The dabber flushes with the one end terminal surface that compresses tightly the axle sleeve and is close to the magnet steel and cooperates with the contact of magnet steel terminal surface.
And a plurality of annular grooves for reducing weight are formed in the outer surface of one end of the mandrel, which is far away from the magnetic steel.
The material of the compression shaft sleeve and the middle sleeve comprises nickel-based high-temperature alloy.
The material of the mandrel comprises 9Cr18, 9Cr18Mo or 9Cr18MoV stainless steel.
The wear resistant coating comprises a titanium nitride coating.
The above technical scheme is adopted in the utility model, following advantage has:
the central shafts on the two sides are respectively pressed and fixed with the magnetic steel through the pressing shaft sleeves on the two sides, and then the pressing shaft sleeves are fixedly connected with the middle sleeve, so that the assembly process is simplified, the assembly efficiency is improved, the outer surfaces of the pressing shaft sleeves are provided with wear-resistant coatings which are contacted with the radial air bearing, the wear resistance is greatly improved, the abrasion of the rotor is avoided, the rotation precision is improved, the pressing shaft sleeves and the middle sleeve are made of high-temperature-resistant non-magnetic materials, the situations of external heating and temperature rise of the rotor are avoided, and the service life of the rotor is ensured; the rotor bilateral symmetry sets up, and weight is the same, and the equilibrium is good, and stability is good during high-speed rotation, is favorable to the promotion of rotational speed.
Description of the drawings:
fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic sectional view of the present invention.
In the figure, the device comprises a middle sleeve 1, a middle sleeve 2, magnetic steel 3, a mandrel 4, a compression shaft sleeve 5 and an annular groove.
The specific implementation mode is as follows:
in order to clearly explain the technical features of the present invention, the present invention will be explained in detail by the following embodiments and the accompanying drawings.
As shown in fig. 1-2, a high-speed rotor of an air compressor comprises a middle sleeve 1, a magnetic steel 2 is installed in the middle sleeve 1, mandrels 3 are respectively arranged at two ends of the magnetic steel 2, a pressing shaft sleeve 4 is arranged on the outer side of one end, close to the magnetic steel 2, of the mandrel 3, the pressing shaft sleeve 4 is fixedly connected with the middle sleeve 1, the pressing shaft sleeve 4 is used for pressing and fixing the mandrel 3 and the magnetic steel 2, the assembling process is simplified, the assembling efficiency is improved, the pressing shaft sleeve 4 and the middle sleeve 1 are made of high-temperature-resistant non-magnetic materials, the situations that the rotor generates heat outside and the temperature of the rotor rises are avoided, and the service life of the rotor is ensured; the outer surface of the compressing shaft sleeve 4 is provided with a wear-resistant coating which is contacted with the radial air bearing, so that the wear resistance is greatly improved.
The outer surface of the mandrel 3 is provided with a shaft shoulder, the inner side of the compressing shaft sleeve 4 is provided with a baffle table, and the mandrel 3 and the compressing shaft sleeve 4 are in interference fit press-fitting connection.
The compressing shaft sleeve 4 is inserted into the middle sleeve 1, the compressing shaft sleeve 4 and the middle sleeve 1 are in interference fit press-fitting connection, and the outer edge of the connection part is welded and fixed to increase the connection strength.
Dabber 3 flushes and cooperates with magnet steel 2 terminal surface contact with the one end terminal surface that compresses tightly axle sleeve 4 and is close to magnet steel 2, makes overall structure compacter, and when dabber 3 receives external force to strike, face and face area of contact between dabber 3 and the magnet steel 2 are big moreover, can avoid magnet steel 2 atress to break.
The dabber 3 is kept away from the one end surface of magnet steel 2 and is equipped with a plurality of ring channel 5 that is used for the weight reduction, is favorable to the promotion of rotational speed more after the whole weight reduction.
The material of the compressing shaft sleeve 4 and the intermediate sleeve 1 comprises nickel-based high-temperature alloy, wherein the nickel-based high-temperature alloy takes nickel as a base body (the content is generally more than 50 percent) and has high strength and good oxidation resistance and fuel gas corrosion resistance in the range of 650-1000 ℃. Specifically, the utility model discloses can adopt GH4145 alloy, belong to high temperature resistant not magnetic material, GH4145 alloy has good corrosion-resistant and oxidation resistance, has higher intensity below 800 ℃, has better resistant laxity performance below 540 ℃, still has good formability and welding performance simultaneously.
The mandrel 3 is made of 9Cr18, 9Cr18Mo or 9Cr18MoV stainless steel, and has high hardness, good corrosion resistance and strong toughness.
The wear-resistant coating comprises a titanium nitride coating, and is high in hardness, good in wear resistance, high-temperature resistant, good in stability when in contact with the radial air bearing and long in service life.
The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.
The parts of the present invention not described in detail are known to those skilled in the art.
Claims (9)
1. The utility model provides a high-speed rotor of air compressor machine which characterized in that: the magnetic steel pressing device comprises a middle sleeve, magnetic steel is installed in the middle sleeve, mandrels are arranged at two ends of the magnetic steel respectively, a pressing shaft sleeve is arranged on the outer side of one end, close to the magnetic steel, of each mandrel, the pressing shaft sleeve is fixedly connected with the middle sleeve, the pressing shaft sleeve is used for pressing the mandrels and the magnetic steel fixedly, the pressing shaft sleeve and the middle sleeve are made of high-temperature-resistant non-magnetic materials, and a wear-resistant coating is arranged on the outer surface of the pressing shaft sleeve.
2. The high-speed rotor of the air compressor as claimed in claim 1, wherein: the magnetic steel is arranged in the middle of the inner part of the middle sleeve, and the core shafts and the pressing shaft sleeves at the two ends of the magnetic steel are symmetrically arranged.
3. The high-speed rotor of the air compressor as claimed in claim 1, wherein: the outer surface of the mandrel is provided with a shoulder, the inner side of the compressing shaft sleeve is provided with a baffle table, and the mandrel and the compressing shaft sleeve are in interference fit press-fitting connection.
4. The high-speed rotor of the air compressor as claimed in claim 1, wherein: the compressing shaft sleeve is inserted into the middle sleeve, the compressing shaft sleeve and the middle sleeve are in press fit and connection in an interference fit mode, and the outer edge of the connection position is welded and fixed.
5. The high-speed rotor of the air compressor as claimed in claim 1, wherein: the dabber flushes with the one end terminal surface that compresses tightly the axle sleeve and is close to the magnet steel and cooperates with the contact of magnet steel terminal surface.
6. The high-speed rotor of the air compressor as claimed in claim 1, wherein: and a plurality of annular grooves for reducing weight are formed in the outer surface of one end of the mandrel, which is far away from the magnetic steel.
7. The high-speed rotor of the air compressor as claimed in claim 1, wherein: the material of the compression shaft sleeve and the middle sleeve comprises nickel-based high-temperature alloy.
8. The high-speed rotor of the air compressor as claimed in claim 1, wherein: the material of the mandrel comprises 9Cr18, 9Cr18Mo or 9Cr18MoV stainless steel.
9. The high-speed rotor of the air compressor as claimed in claim 1, wherein: the wear resistant coating comprises a titanium nitride coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222549758.3U CN218266349U (en) | 2022-09-26 | 2022-09-26 | High-speed rotor of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222549758.3U CN218266349U (en) | 2022-09-26 | 2022-09-26 | High-speed rotor of air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218266349U true CN218266349U (en) | 2023-01-10 |
Family
ID=84748394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222549758.3U Active CN218266349U (en) | 2022-09-26 | 2022-09-26 | High-speed rotor of air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218266349U (en) |
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2022
- 2022-09-26 CN CN202222549758.3U patent/CN218266349U/en active Active
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