CN206903936U - A kind of impeller fixed structure of centrifugal compressor - Google Patents
A kind of impeller fixed structure of centrifugal compressor Download PDFInfo
- Publication number
- CN206903936U CN206903936U CN201720774635.6U CN201720774635U CN206903936U CN 206903936 U CN206903936 U CN 206903936U CN 201720774635 U CN201720774635 U CN 201720774635U CN 206903936 U CN206903936 U CN 206903936U
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- CN
- China
- Prior art keywords
- impeller
- locking nut
- axle
- screwed hole
- centrifugal compressor
- Prior art date
- 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 discloses a kind of impeller fixed structure of centrifugal compressor, including impeller, impeller axle, locking nut and caging bolt, the impeller is fixed in impeller axle by locking nut, inclined screwed hole is provided with the locking nut, impeller and impeller axle, and the screwed hole in locking nut, impeller and impeller axle is corresponding, the end of the caging bolt is thread through locking nut successively and impeller rear-inclined is fixed in the screwed hole of impeller axle.The utility model is simple in construction, impeller fixation rear stability is good, solves the problems, such as that the locking torque of impeller mounting process in the prior art is big, assembly technology is complicated.
Description
Technical field
Compressor field is the utility model is related to, relates in particular to a kind of impeller fixed structure of centrifugal compressor.
Background technology
When centrifugal compressor works, rotated by power transmission shaft impeller, impeller is compressed acting to cold media gas.It is existing
There is impeller mounting means to be generally：（1）By locking nut pressure compaction impeller；（2）Impeller is interference fitted with power transmission shaft；（3）Three
The shaft hole matching of angle section.
Wherein, in the first mounting means, tightened between impeller and power transmission shaft with nut, with impeller bottom surface and power transmission shaft it
Between frictional force prevent that its pine is sliding.Its benefit is simple in construction, but needs to tense power transmission shaft to tighten nut, and locking torque is very
Greatly, assembly technology is more complicated.
In second of mounting means, on impeller hot jacket to power transmission shaft, make leaf by frictional force caused by the magnitude of interference on power transmission shaft
Wheel rotates together with power transmission shaft.Its benefit is simple in construction, and nut check torque is small, but the magnitude of interference needed is very big, assembling,
Dismantle relatively difficult.
In the third mounting means, the section of impeller and power transmission shaft is all triangle, so impeller will not with power transmission shaft
Slip is produced, its benefit is that nut check torque is small, and assembling, dismounting are easy, but power transmission shaft and hole are irregular shape, manufacture
Complex process.
Utility model content
The purpose of this utility model is solve the above-mentioned problems in the prior art, there is provided a kind of centrifugal compressor
Impeller fixed structure, the utility model is simple in construction, impeller fixation rear stability is good, solves impeller erector in the prior art
The problem of locking torque of skill is big, assembly technology is complicated.
To achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of impeller fixed structure of centrifugal compressor, it is characterised in that：Including impeller, impeller axle, locking nut and limit
Position bolt, the impeller are fixed in impeller axle by locking nut, are provided with the locking nut, impeller and impeller axle
Inclined screwed hole, and the screwed hole in locking nut, impeller and impeller axle is corresponding, the end of caging bolt spiral shell successively
Line is fixed in the screwed hole of impeller axle through locking nut and impeller rear-inclined.
The locking nut includes integrally formed cylindrical section and round platform section, and the screwed hole on the locking nut is arranged on
In round platform section.
Packing ring is provided between caging bolt and the round platform section.
The quantity of the caging bolt is two, and two caging bolts are symmetrical arranged.
Using the utility model has the advantage of：
The utility model also runs through locking screw in addition to locking nut is spacing to impeller fixation by inclined caging bolt
The mode of female, impeller and impeller axle is spacing to impeller, steadiness of the impeller in impeller axle both greatly improved, and significantly simplify
The fixed structure of impeller, solves the problems, such as that the locking torque of impeller mounting process in the prior art is big, assembly technology is complicated.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure marked as：1st, impeller, 2, impeller axle, 3, locking nut, 4, caging bolt.
Embodiment
A kind of impeller fixed structure of centrifugal compressor, including impeller 1, impeller axle 2, locking nut 3 and caging bolt 4,
The impeller 1 is fixed in impeller axle 2 by locking nut 3, is provided with the locking nut 3, impeller 1 and impeller axle 2
Inclined screwed hole, and the screwed hole in locking nut 3, impeller 1 and impeller axle 2 is corresponding, the end of the caging bolt 4 according to
It is secondary to be thread through locking nut 3 and the rear-inclined of impeller 1 is fixed in the screwed hole of impeller axle 2.
In the utility model, the locking nut 3 includes integrally formed cylindrical section and round platform section, the locking nut 3
On screwed hole be arranged in round platform section.During installation, first the end of caging bolt 4 is penetrated from the screwed hole in round platform section, then
Screwed hole through on impeller 1, the screwed hole in impeller axle 2 is finally entered, realize fixation of the impeller 1 in impeller axle 2.Enter one
Step, it is provided with packing ring between the caging bolt 4 and round platform section.
In the utility model, the quantity of the caging bolt 4 is two, and two caging bolts 4 are symmetricly set on locking screw
In the round platform section of mother 3.
In the utility model, inclined screwed hole is preset in the locking nut 3, impeller 1 and impeller axle 2, i.e. leaf
Wheel 1 is locked after nut 3 is completely fixed, and the screwed hole in locking nut 3, impeller 1 and impeller axle 2 is corresponding.
Claims (4)
- A kind of 1. impeller fixed structure of centrifugal compressor, it is characterised in that：Including impeller（1）, impeller axle（2）, locking nut （3）And caging bolt（4）, the impeller（1）Pass through locking nut（3）It is fixed on impeller axle（2）On, the locking nut（3）、 Impeller（1）And impeller axle（2）On be provided with inclined screwed hole, and locking nut（3）, impeller（1）And impeller axle（2）On Screwed hole is corresponding, the caging bolt（4）End be thread through locking nut successively（3）And impeller（1）Rear-inclined is fixed In impeller axle（2）Screwed hole in.
- A kind of 2. impeller fixed structure of centrifugal compressor as claimed in claim 1, it is characterised in that：The locking nut （3）Including integrally formed cylindrical section and round platform section, the locking nut（3）On screwed hole be arranged in round platform section.
- A kind of 3. impeller fixed structure of centrifugal compressor as claimed in claim 2, it is characterised in that：The caging bolt （4）Packing ring is provided between round platform section.
- A kind of 4. impeller fixed structure of centrifugal compressor as claimed in claim 1, it is characterised in that：The caging bolt （4）Quantity be two, two caging bolts（4）It is symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720774635.6U CN206903936U (en) | 2017-06-29 | 2017-06-29 | A kind of impeller fixed structure of centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720774635.6U CN206903936U (en) | 2017-06-29 | 2017-06-29 | A kind of impeller fixed structure of centrifugal compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206903936U true CN206903936U (en) | 2018-01-19 |
Family
ID=61291896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720774635.6U Expired - Fee Related CN206903936U (en) | 2017-06-29 | 2017-06-29 | A kind of impeller fixed structure of centrifugal compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206903936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404336A (en) * | 2018-11-16 | 2019-03-01 | 四川聚亿重工有限公司 | A kind of fastening structure of turbocompressor impeller and axis |
-
2017
- 2017-06-29 CN CN201720774635.6U patent/CN206903936U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404336A (en) * | 2018-11-16 | 2019-03-01 | 四川聚亿重工有限公司 | A kind of fastening structure of turbocompressor impeller and axis |
| CN109404336B (en) * | 2018-11-16 | 2023-12-22 | 四川聚亿重工有限公司 | Fastening structure of turbine compressor impeller and shaft |
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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: 20180119 Termination date: 20200629 |