CN208416989U - Two stage centrifugal compressor - Google Patents
Two stage centrifugal compressor Download PDFInfo
- Publication number
- CN208416989U CN208416989U CN201820393495.2U CN201820393495U CN208416989U CN 208416989 U CN208416989 U CN 208416989U CN 201820393495 U CN201820393495 U CN 201820393495U CN 208416989 U CN208416989 U CN 208416989U
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- China
- Prior art keywords
- shaft
- compressor
- shell
- flange disk
- stator
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides two stage centrifugal compressor, and which raises the torsion that motor is transmitted, and then guarantees the revolving speed of the impeller of compressor, and then guarantees highly effective refrigeration.It include motor and be respectively in motor two sides output end the first compressor, the second compressor, the motor includes stator, shaft, shell, first compressor, the second compressor respectively include compressor case, compressor rotation shaft, compressor impeller, the both ends of the shaft are output end, it is fixed with corresponding first flange disk respectively on two output ends of the shaft, corresponding second flange disk, the first flange disk and the corresponding affixed connection of second flange disk are fixed on the input terminal of each compressor rotation shaft.
Description
Technical field
The utility model relates to the technical fields of electric moto used in compressor, specially two stage centrifugal compressor.
Background technique
There are two impeller, the output shaft of the two sides of existing motor passes through for existing two stage centrifugal refrigeration compressor setting
The input axis connection of shaft coupling and corresponding impeller, in actual use, the refrigeration effect of compressor is bad, to find out its cause, being
Because the output shaft of motor is too thin, and then causes transmitted torsion too small, cause the wheel speed of compressor that cannot effectively mention
It is high.
Summary of the invention
In view of the above-mentioned problems, the utility model provides two stage centrifugal compressor, which raises the torsion that motor is transmitted,
And then guarantee the revolving speed of the impeller of compressor, and then guarantee highly effective refrigeration.
Two stage centrifugal compressor, it is characterised in that: it include motor and be respectively in motor two sides output end first
Compressor, the second compressor, the motor include stator, shaft, shell, and first compressor, the second compressor wrap respectively
Compressor case, compressor rotation shaft, compressor impeller are included, the both ends of the shaft are output end, and two of the shaft are defeated
Corresponding first flange disk is fixed in outlet respectively, is fixed with corresponding second on the input terminal of each compressor rotation shaft
Ring flange, the first flange disk and the corresponding affixed connection of second flange disk.
It is further characterized by:
The stator is annularly distributed in the outer ring surface of the shaft, and the two output ends difference side of the shaft is convex in the stator
Length direction both ends, the outer ring surface of the stator are disposed with shell, and the shell includes upper housing, lower case, the upper housing,
Form inner cavity after lower case is assembled, it is described it is interior it is intracavitary be provided with the stator, shaft, the shell corresponds to the two of the shaft
End is provided with avoid holes, and the both ends of the shaft externally protrude out in corresponding avoid holes respectively, and the shaft externally protrudes out in the evacuation
The part in hole is fixed with first flange disk respectively, and the first flange disk includes indent positioning chamber, inner ring connecting hole, outer ring connection
Hole, the inner ring connecting hole do not externally protrude out in described the by the outer end face of the corresponding end surface of the affixed shaft of bolt and bolt
The outer end face of one ring flange, the corresponding end of the shaft are positioned in the indent positioning chamber, and the outer ring connecting hole is for solid
The corresponding second flange disk is connect, the diameter of the first flange disk is greater than the diameter of the output end；
The end positions that the inner wall of the shell corresponds to the shaft are respectively arranged with rolling bearing, the rolling bearing
The inner end corresponding end that is mounted on the stator respectively inner cavity in, the inner ring of the rolling bearing is set in the shaft
Corresponding position, the corresponding position of the outer ring of the rolling bearing are installed in the inner wall of the shell and the corresponding position of inner cavity,
Ensure the positioning of stator；
The diameter of the both ends output end of the shaft is less than the diameter of the middle part large diameter portion of the shaft, the shell
Positioning bearing is provided between length direction end and the output end of the shaft, the inner end of the positioning bearing is close in described
The respective ends of the length direction of portion's large diameter portion, the outer end cap of the positioning bearing is equipped with positioning ring cowling, the positioning ring cowling
Outer end face is corresponded to by the length direction that screw is anchored on the shell；
The third ring flange that the compressor case of every side passes through inside respectively is fixedly connected with the corresponding end of the shell
Face；
The lower part of the lower case is provided with mounting rack.
After the utility model, two output ends of motor pass through the compressor of first flange disk connection corresponding position respectively
The second flange disk of the input terminal of shaft is connected by ring flange fasten between the two, which raises the torsion that motor is transmitted,
And then guarantee the revolving speed of the impeller of compressor, and then guarantee highly effective refrigeration.
Detailed description of the invention
Fig. 1 is the structure schematic diagram of the utility model；
Title corresponding to serial number is as follows in figure:
Motor 1, stator 11, inner cavity 111, shaft 12, output end 121, middle part large diameter portion 122, shell 13, upper housing
131, lower case 132, first flange disk 14, indent positioning chamber 141, inner ring connecting hole 142, outer ring connecting hole 143, first compress
Machine 2, the second compressor 3, compressor case 4, compressor rotation shaft 5, compressor impeller 6, second flange disk 7, avoid holes 8, rotation
Bearing 9, positioning bearing 10, positioning ring cowling 20, third ring flange 21, mounting rack 22.
Specific embodiment
Two stage centrifugal compressor, is shown in Fig. 1: it include motor 1 and be respectively in motor two sides output end first compression
Machine 2, the second compressor 3, motor 1 include stator 11, shaft 12, shell 13, and the first compressor 2, the second compressor 3 respectively include
Compressor case 4, compressor rotation shaft 5, compressor impeller 6, the both ends of shaft 12 are output end 121, and two of shaft 12 are defeated
Corresponding first flange disk 14 is fixed in outlet 121 respectively, corresponding is fixed on the input terminal of each compressor rotation shaft 5
Two ring flanges 7, first flange disk 14 and the affixed connection of corresponding second flange disk 7.
Stator 11 is annularly distributed in the outer ring surface of shaft 12, and two output ends 121 of shaft 12 distinguish the convex length in stator 11 in side
Direction both ends, the outer ring surface of stator 11 are disposed with shell 13, and shell 13 includes upper housing 131, lower case 132, upper housing 131,
Form inner cavity after 132 assembly of lower case, it is interior it is intracavitary be provided with stator 11, shaft 12, the both ends that shell 12 corresponds to shaft 11 are set
Avoid holes 8 are equipped with, the both ends of shaft 12 externally protrude out in corresponding avoid holes 8, the part for externally protruding out in avoid holes 8 point of shaft 12 respectively
It is not fixed with first flange disk 14, first flange disk 14 includes indent positioning chamber 141, inner ring connecting hole 142, outer ring connecting hole
143, inner ring connecting hole 142 does not externally protrude out in first flange by the corresponding end surface of the affixed shaft 12 of bolt and the outer end face of bolt
The outer end face of disk 14, the corresponding end of shaft 12 are positioned in indent positioning chamber 141, and outer ring connecting hole 143 is for affixed corresponding
Second flange disk 7, the diameter of first flange disk 14 are greater than the diameter of output end 121；
The end positions that the inner wall of shell 13 corresponds to shaft 12 are respectively arranged with rolling bearing 9, the inner end of rolling bearing 9
It being mounted in the inner cavity 111 of the corresponding end of stator 11 respectively, the inner ring of rolling bearing 9 is set in the corresponding position of shaft 12,
The corresponding position of the outer ring of rolling bearing 9 is installed in the inner wall of shell 13 and the corresponding position of inner cavity 111, it is ensured that stator 11
Positioning；
The diameter of the both ends output end 121 of shaft 12 is less than the diameter of the middle part large diameter portion 122 of shaft 12, shell 13
Positioning bearing 10 is provided between length direction end and the output end 121 of shaft 12, middle part is close in the inner end of positioning bearing 10
The respective ends of the length direction of large diameter portion 122, for the outer end cap of positioning bearing 10 equipped with positioning ring cowling 20, positioning ring cowling 20 is logical
It crosses screw and is anchored on the length direction of shell 13 and correspond to outer end face；
The compressor case 4 of every side is fixedly connected with the corresponding end surface of shell 13 by the third ring flange 21 of inside respectively；
The lower part of lower case 132 is provided with mounting rack 22.
Specific embodiment of the utility model is described in detail above, but content is only what the utility model was created
Preferred embodiment should not be construed as limiting the practical range of the utility model creation.All create according to the utility model is applied
All the changes and improvements made by range etc., shall still fall within the scope of this patent.
Claims (6)
1. two stage centrifugal compressor, it is characterised in that: it include motor and be respectively in motor two sides output end first pressure
Contracting machine, the second compressor, the motor include stator, shaft, shell, and first compressor, the second compressor respectively include
Compressor case, compressor rotation shaft, compressor impeller, the both ends of the shaft are output end, two outputs of the shaft
Corresponding first flange disk is fixed on end respectively, corresponding second method is fixed on the input terminal of each compressor rotation shaft
Blue disk, the first flange disk and the corresponding affixed connection of second flange disk.
2. two stage centrifugal compressor as described in claim 1, it is characterised in that: the stator is annularly distributed in the outer ring of the shaft
Two output ends in face, the shaft distinguish the convex length direction both ends in the stator in side, and the outer ring surface of the stator is disposed with
Shell, the shell include upper housing, lower case, form inner cavity, the interior intracavitary setting after the upper housing, lower case are assembled
There are the stator, shaft, the both ends that the shell corresponds to the shaft are provided with avoid holes, and the both ends of the shaft are outer respectively
It is convex that in corresponding avoid holes, the part for externally protruding out in the avoid holes of the shaft is fixed with first flange disk respectively, and described
One ring flange includes indent positioning chamber, inner ring connecting hole, outer ring connecting hole, and the inner ring connecting hole passes through affixed described turn of bolt
The corresponding end surface of axis and the outer end face of bolt do not externally protrude out in the outer end face of the first flange disk, and the corresponding end of the shaft is fixed
In the indent positioning chamber, the outer ring connecting hole is used for the affixed corresponding second flange disk, the first flange
The diameter of disk is greater than the diameter of the output end.
3. two stage centrifugal compressor as claimed in claim 2, it is characterised in that: the inner wall of the shell corresponds to the shaft
End positions be respectively arranged with rolling bearing, the inner end of the rolling bearing is mounted on the interior of the corresponding end of the stator respectively
In cavity, the inner ring of the rolling bearing is set in the corresponding position of the shaft, the correspondence position of the outer ring of the rolling bearing
Set the corresponding position of the inner wall and inner cavity that are installed in the shell.
4. two stage centrifugal compressor as claimed in claim 3, it is characterised in that: the diameter of the both ends output end of the shaft is small
It is set between the diameter of the middle part large diameter portion of the shaft, the length direction end of the shell and the output end of the shaft
It is equipped with positioning bearing, the respective ends of the length direction of the middle part large diameter portion are close in the inner end of the positioning bearing, described
The outer end cap of bearing is positioned equipped with positioning ring cowling, the positioning ring cowling is corresponding by the length direction that screw is anchored on the shell
Outer end face.
5. two stage centrifugal compressor as claimed in claim 4, it is characterised in that: the compressor case of every side passes through respectively
The third ring flange of inside is fixedly connected with the corresponding end surface of the shell.
6. two stage centrifugal compressor as claimed in claim 5, it is characterised in that: the lower part of the lower case is provided with installation
Frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820393495.2U CN208416989U (en) | 2018-03-22 | 2018-03-22 | Two stage centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820393495.2U CN208416989U (en) | 2018-03-22 | 2018-03-22 | Two stage centrifugal compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208416989U true CN208416989U (en) | 2019-01-22 |
Family
ID=65117756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820393495.2U Expired - Fee Related CN208416989U (en) | 2018-03-22 | 2018-03-22 | Two stage centrifugal compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208416989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112113360A (en) * | 2019-06-21 | 2020-12-22 | 上海海立电器有限公司 | Refrigeration cycle system and control method thereof |
-
2018
- 2018-03-22 CN CN201820393495.2U patent/CN208416989U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112113360A (en) * | 2019-06-21 | 2020-12-22 | 上海海立电器有限公司 | Refrigeration cycle system and control method thereof |
| CN112113360B (en) * | 2019-06-21 | 2022-03-11 | 上海海立电器有限公司 | Refrigeration cycle system and control method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 |