CN215444441U - Two-stage compressor rotor and assembly quality - Google Patents
Two-stage compressor rotor and assembly quality Download PDFInfo
- Publication number
- CN215444441U CN215444441U CN202121156289.8U CN202121156289U CN215444441U CN 215444441 U CN215444441 U CN 215444441U CN 202121156289 U CN202121156289 U CN 202121156289U CN 215444441 U CN215444441 U CN 215444441U
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- impeller
- main shaft
- ring
- locking nut
- stage compressor
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Abstract
The utility model provides a two-stage compressor rotor and an assembling device, which relate to the technical field of gas pumps and comprise a main shaft, a first impeller, a second impeller and a limiting component, wherein a screw hole is formed in one side of the main shaft, a first locking nut is arranged at one end of the main shaft, an opening is formed in one side of the first locking nut, a screw is arranged in the opening, the first locking nut is fixedly connected with the main shaft through the screw hole, the opening and the screw, the first impeller and the second impeller are sleeved on the outer side of the middle section of the main shaft, and the limiting component is arranged on two sides of the first impeller and the second impeller and used for limiting the first impeller and the second impeller, so that the axial movement of the first impeller and the second impeller is avoided. This kind of two-stage compressor rotor and assembly quality is through being provided with mutually supporting between a plurality of axle sleeves, can effectively avoid a plurality of impellers at axial mutual drunkenness, has avoided radial vibration risk.
Description
Technical Field
The utility model relates to the technical field of gas pumps, in particular to a two-stage compressor rotor and an assembling device.
Background
At present, the centrifugal compressor equipment used in industry mainly transfers the work of a motor to an impeller through a gear speed increasing box, and applies work to a medium through the impeller, thereby realizing the temperature rise and pressure rise of the medium. In order to be able to rotate the impeller, the impeller is generally mounted on a rotating shaft which is speed-converted by means of large and small gear teeth of a gear box and thus has a high rotational speed.
The rotating shaft and the impeller, also called as a rotor, need to transmit power and also need to bear centrifugal force and axial thrust of high-speed rotation, so the structure and assembly effect of the rotor have great influence on the equipment performance and installation of the compressor.
The existing multistage compression centrifugal compressor rotor is complex in structure and assembly process, and often cannot meet design requirements in practice, so that the whole machine cannot reach an expected target easily, and in actual use, impellers can axially move mutually, so that potential safety hazards are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the background technology and provides a two-stage compressor rotor and an assembling device.
In order to achieve the purpose, the utility model provides the following technical scheme that the two-stage compressor rotor and the assembling device comprise a main shaft, a first impeller, a second impeller and a limiting component;
a screw hole is formed in one side of the main shaft, a first locking nut is arranged at one end of the main shaft, an opening is formed in one side of the first locking nut, a screw is arranged in the opening, the first locking nut is fixedly connected with the main shaft through the screw hole, the opening and the screw, and a first impeller and a second impeller are sleeved on the outer side of the middle section of the main shaft;
the limiting assembly is arranged on two sides of the first impeller and the second impeller and used for limiting the first impeller and the second impeller, so that axial movement of the first impeller and the second impeller is avoided.
Further, spacing subassembly is including first tight circle, first solid fixed ring, first axle sleeve, secondary shaft cover, balance disk, the solid fixed ring of second and the tight circle of second, first tight circle has been cup jointed in the main shaft outside, first tight circle swing joint has two first solid fixed rings, first solid fixed ring one side is provided with first axle sleeve, the secondary shaft cover has been cup jointed in the main shaft outside, secondary shaft cover one side is provided with the balance disk, the solid fixed ring of two second of swing joint in balance disk one side, the solid fixed ring one side of second is provided with the tight circle of second.
Further, first tight circle, first solid fixed ring, first axle sleeve all are located first impeller one side, the solid fixed ring of balance disk, second and the tight circle of second are located second impeller one side, the second axle sleeve is located between first impeller and the second impeller.
Further, two recesses have been seted up in the main shaft outside, leave the clearance between first tight circle and the first axle sleeve, two first solid fixed ring all is the semicircle ring-type, first solid fixed ring passes the clearance block in one of them recess, first solid fixed ring is unanimous with the fixed ring form size of second, leave the gap between balance disc and the tight circle of second, the solid fixed ring of second passes the gap block in another recess.
Furthermore, a thrust disc is arranged on one side of the first locking nut, one side of the first locking nut is tightly attached to the thrust disc, a positioning key is arranged between the thrust disc and the main shaft, and a thrust adjusting ring is arranged on one side of the thrust disc.
Furthermore, a half coupling is sleeved at one end of the main shaft, and a second locking nut is arranged on one side of the half coupling.
The utility model provides a two-stage compressor rotor and an assembling device, which have the following beneficial effects:
1. the utility model has the advantages of, with first solid fixed ring block in one of them recess, install on the main shaft after heating first tight circle after then, then stand up the main shaft, and install on the main shaft after heating the first shaft sleeve, install on the main shaft after heating first impeller after then, then install on the main shaft after heating the second shaft sleeve, install on the main shaft after heating the second impeller again, install on the main shaft after heating the balance disk after then, again with the solid fixed ring block of second in another recess, install at the main shaft after heating the second tight circle after then, through mutually supporting of first axle sleeve and second portion axle sleeve, thereby avoid first impeller and the mutual drunkenness of second impeller.
2. Secondly, install thrust adjusting ring on the main shaft, install the thrust dish on the main shaft again, and thrust adjusting ring one side and thrust dish laminating, install first lock nut in main shaft one end again, and thrust dish one side and the laminating of first lock nut, the navigation key can fix a position thrust dish and main shaft, avoids the radial drunkenness of thrust dish, and can adjust and fix a position the thrust dish through thrust adjusting ring.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an overall cross-sectional view of the present invention.
Fig. 3 is an enlarged view of the utility model at a in fig. 2.
Fig. 4 is a schematic structural diagram of the first bushing of the present invention.
Fig. 5 is a schematic view of a first tensioner of the present invention.
Fig. 6 is a schematic view of a first fixed ring structure of the present invention.
Fig. 7 is a schematic view of the balance disk structure of the present invention.
Fig. 8 is a schematic structural view of the thrust adjusting ring of the present invention.
In FIGS. 1-8: 1-a main shaft; 101-a first locking nut; 102-a screw; 2-a first impeller; 3-a second impeller; 4-a first grip ring; 401-a first retaining ring; 402-a first bushing; 403-second bushing; 404-balance disc; 405-a second retaining ring; 406-a second grip ring; 5-a thrust disc; 501-positioning key; 502-thrust adjusting ring; 6-half coupling; 601-second locking nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
referring to FIGS. 1-8 of the drawings,
the two-stage compressor rotor and assembly device provided by the embodiment comprises a main shaft 1, a first impeller 2, a second impeller 3 and a limiting assembly;
a screw hole is formed in one side of the main shaft 1, a first locking nut 101 is arranged at one end of the main shaft 1, an opening is formed in one side of the first locking nut 101, a screw 102 is arranged inside the opening, the first locking nut 101 is fixedly connected with the main shaft 1 through the screw hole, the opening and the screw 102, and a first impeller 2 and a second impeller 3 are sleeved on the outer side of the middle section of the main shaft 1;
the limiting assemblies are arranged on two sides of the first impeller 2 and the second impeller 3 and used for limiting the first impeller 2 and the second impeller 3 so as to prevent the first impeller 2 and the second impeller 3 from axially moving;
further, spacing subassembly is including first tight circle 4, first solid fixed ring 401, first axle sleeve 402, second axle sleeve 403, balance disc 404, solid fixed ring 405 of second and second tight circle 406, first tight circle 4 has been cup jointed in the 1 outside of main shaft, first tight circle 4 swing joint has two solid fixed rings 401 of first tight circle, first solid fixed ring 401 one side is provided with first axle sleeve 402, second axle sleeve 403 has been cup jointed in the 1 outside of main shaft, second axle sleeve 403 one side is provided with balance disc 404, solid fixed ring 405 of two second of swing joint in balance disc 404 one side, the solid fixed ring 405 one side of second is provided with second tight circle 406, it is spacing to first impeller 2 and second impeller 3 through spacing subassembly, thereby avoid first impeller 2 and 3 axial float of second impeller.
Further, a first tight ring 4, a first fixing ring 401 and a first shaft sleeve 402 are all positioned on one side of the first impeller 2, a balance disc 404, a second fixing ring 405 and a second tight ring 406 are displaced on the other side of the second impeller 3, a second shaft sleeve 403 is positioned between the first impeller 2 and the second impeller 3, when the limiting assembly is installed, firstly, the main shaft 1 is fixed on an assembling platform, the main shaft 1 is perpendicular to the horizontal plane, then, the first fixing ring 401 is clamped in one of the grooves, then, the first tight ring 4 is installed on the main shaft 1 after being heated, then, the main shaft 1 is turned over, the first shaft sleeve 402 is installed on the main shaft 1 after being heated, so that the first shaft sleeve 402 is positioned on one side of the first fixing ring 401, then, the first impeller 2 is installed on the main shaft 1 after being heated, one side of the first shaft sleeve 402 is attached to the first impeller 2, then, the second shaft sleeve 403 is installed on the main shaft 1 after being heated, one side of the first impeller 2 is attached to the second shaft sleeve 403, the second impeller 3 is heated and then installed on the main shaft 1, one side of the second shaft sleeve 403 is attached to the second impeller 3, the balance disc 404 is heated and then installed on the main shaft 1, one side of the second impeller 3 is attached to the balance disc 404, the second fixing ring 405 is clamped in another groove, the second fastening ring 406 is heated and then installed on the main shaft 1, the second fastening ring 406 is located on one side of the second fixing ring 405, the first fastening ring 4 and the second fastening ring 406 can prevent the first impeller 2 and the second impeller 3 from moving axially after being loosened, the first shaft sleeve 402 and the second shaft sleeve can not only position the first impeller 2 and the second impeller 3 and facilitate airflow to pass through the first impeller 2 and the second impeller 3, the first impeller 2 and the second impeller 3 are both used for compressing gas media, and the balance disc 404 increases a part of axial thrust through pressure difference and area, to balance the reverse axial thrust generated by the front end of the main shaft 1.
Further, two recesses have been seted up in the 1 outside of main shaft, leave the clearance between first tight circle 4 and the first axle sleeve 402, two first solid fixed rings 401 all are the semicircle ring-type, first solid fixed ring 401 passes the clearance block in one of them recess, first solid fixed ring 401 is unanimous with the solid fixed ring 405 shape size of second, leave the gap between balance disk 404 and the tight circle 406 of second, the solid fixed ring 405 of second passes the gap block in another recess, through the solid fixed ring 405 block respectively of first solid fixed ring 401 and second in the recess, thereby make things convenient for first tight circle 4, first axle sleeve 402, the location installation of balance disk 404 and the tight circle 406 of second.
Further, a thrust disc 5 is arranged on one side of the first locking nut 101, one side of the first locking nut 101 is tightly attached to the thrust disc 5, a positioning key 501 is arranged between the thrust disc 5 and the spindle 1, a thrust adjusting ring 502 is arranged on one side of the thrust disc 5, when the thrust disc 5 is installed, the thrust adjusting ring 502 is installed on the spindle 1, the thrust disc 5 is installed on the spindle 1 again, one side of the thrust adjusting ring 502 is attached to the thrust disc 5, the first locking nut 101 is installed at one end of the spindle 1 again, one side of the thrust disc 5 is attached to the first locking nut, the positioning key 501 can position the thrust disc 5 and the spindle 1, radial movement of the thrust disc 5 is avoided, and the thrust disc 5 can be adjusted and positioned through the thrust adjusting ring 502.
Further, a half-coupling 6 is sleeved at one end of the main shaft 1, a second locking nut 601 is arranged on one side of the half-coupling 6, when the half-coupling 6 is installed, the half-coupling 6 is fixed at the other end of the main shaft 1 through the second locking nut 601, and then the half-coupling 6 is connected with a coupling so as to transmit power and torque and drive the main shaft 1, the first impeller 2 and the second impeller 3 to rotate.
When the utility model is used, firstly, the main shaft 1 is fixed on an assembly table, the main shaft 1 is placed vertical to a horizontal plane, then the first fixing ring 401 is clamped in one of the grooves, then the first clamping ring 4 is heated and installed on the main shaft 1, then the main shaft 1 is turned over, and according to an assembly gap, the first shaft sleeve 402 is heated and installed on the main shaft 1, so that the first shaft sleeve 402 is positioned at one side of the first fixing ring 401, and according to an assembly interval, the first impeller 2 is heated and installed on the main shaft 1, and one side of the first shaft sleeve 402 is attached to the first impeller 2, the main shaft 1 is released from fixing, the parts installed on the main shaft 1 are subjected to first size gap detection, and the main shaft 1 is subjected to balance checking, so as to ensure the installation accuracy of the main shaft 1, then the main shaft 1 is fixed on the assembly table again and is vertical to the horizontal plane, then the second shaft sleeve 403 is heated and installed on the main shaft 1, one side of the first impeller 2 is attached to the second shaft sleeve 403, the second impeller 3 is heated and then installed on the main shaft 1, one side of the second shaft sleeve 403 is attached to the second impeller 3, then the main shaft 1 is released from being fixed, the components installed on the main shaft 1 are subjected to secondary size gap detection, the main shaft 1 is subjected to balance checking, the main shaft 1 is transversely placed on the assembly platform and the main shaft 1 is prevented from rotating and being damaged, the balance disc 404 is heated and then installed on the main shaft 1, one side of the second impeller 3 is attached to the balance disc 404, then the main shaft 1 is waited to be cooled, the second fixing ring 405 is clamped in another groove, the second fastening ring 406 is installed on the main shaft 1 after being heated, the second fastening ring 406 is located on one side of the second fixing ring 405, then the components installed on the main shaft 1 are subjected to tertiary size gap detection, and the main shaft 1 is subjected to balance checking, the half-coupling 6 is fixed at the other end of the spindle 1 through the second locking nut 601, then the thrust adjusting ring 502 is installed on the spindle 1, then the thrust disc 5 is installed on the spindle 1, one side of the thrust adjusting ring 502 is attached to the thrust disc 5, then the first locking nut 101 is installed at one end of the spindle 1, one side of the thrust disc 5 is attached to the first locking nut, the thrust disc 5 and the spindle 1 can be located through the positioning key 501, radial movement of the thrust disc 5 is avoided, the thrust disc 5 can be adjusted and located through the thrust adjusting ring 502, finally, after balance checking is conducted on the spindle 1, the spindle 1 can be detected to jump, the device is matched with each other through the plurality of shaft sleeves, mutual movement of the plurality of impellers in the axial direction can be effectively avoided, and radial vibration risks are avoided.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several variations and modifications without departing from the concept of the present invention, and these should be considered as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (6)
1. A two-stage compressor rotor and an assembling device are characterized by comprising a main shaft, a first impeller, a second impeller and a limiting component;
a screw hole is formed in one side of the main shaft, a first locking nut is arranged at one end of the main shaft, an opening is formed in one side of the first locking nut, a screw is arranged in the opening, the first locking nut is fixedly connected with the main shaft through the screw hole, the opening and the screw, and a first impeller and a second impeller are sleeved on the outer side of the middle section of the main shaft;
the limiting assembly is arranged on two sides of the first impeller and the second impeller and used for limiting the first impeller and the second impeller, so that axial movement of the first impeller and the second impeller is avoided.
2. The two-stage compressor rotor and assembling device according to claim 1, wherein the limiting assembly comprises a first tight ring, a first fixing ring, a first shaft sleeve, a second shaft sleeve, a balance disc, a second fixing ring and a second tight ring, the first tight ring is sleeved on the outer side of the main shaft, the first tight ring is movably connected with the two first fixing rings, the first shaft sleeve is arranged on one side of the first fixing ring, the second shaft sleeve is sleeved on the outer side of the main shaft, the balance disc is arranged on one side of the second shaft sleeve, the two second fixing rings are movably connected on one side of the balance disc, and the second tight ring is arranged on one side of the second fixing ring.
3. The two-stage compressor rotor and assembly apparatus of claim 2, wherein the first clamp ring, first retainer ring, and first bushing are located on a side of the first impeller, the balance disk, second retainer ring, and second clamp ring are located on a side of the second impeller, and the second bushing is located between the first impeller and the second impeller.
4. The two-stage compressor rotor and assembling device according to claim 2, wherein two grooves are formed in the outer side of the main shaft, a gap is reserved between the first tightening ring and the first shaft sleeve, the two first fixing rings are both semicircular, the first fixing ring penetrates through the gap and is clamped in one of the grooves, the first fixing ring and the second fixing ring are identical in shape and size, a gap is reserved between the balance disc and the second tightening ring, and the second fixing ring penetrates through the gap and is clamped in the other groove.
5. The two-stage compressor rotor and assembly device of claim 1, wherein a thrust disc is disposed on one side of the first locking nut, one side of the first locking nut is in close contact with the thrust disc, a positioning key is disposed between the thrust disc and the main shaft, and a thrust adjusting ring is disposed on one side of the thrust disc.
6. The two-stage compressor rotor and assembly apparatus of claim 1, wherein a half coupling is sleeved on one end of the main shaft, and a second lock nut is disposed on one side of the half coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121156289.8U CN215444441U (en) | 2021-05-27 | 2021-05-27 | Two-stage compressor rotor and assembly quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121156289.8U CN215444441U (en) | 2021-05-27 | 2021-05-27 | Two-stage compressor rotor and assembly quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215444441U true CN215444441U (en) | 2022-01-07 |
Family
ID=79708684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121156289.8U Expired - Fee Related CN215444441U (en) | 2021-05-27 | 2021-05-27 | Two-stage compressor rotor and assembly quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215444441U (en) |
-
2021
- 2021-05-27 CN CN202121156289.8U patent/CN215444441U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |