CN202117984U - Transmission structure of impeller, centrifugal compressor comprising transmission structure and air conditioner comprising transmission structure - Google Patents
Transmission structure of impeller, centrifugal compressor comprising transmission structure and air conditioner comprising transmission structure Download PDFInfo
- Publication number
- CN202117984U CN202117984U CN2011202401728U CN201120240172U CN202117984U CN 202117984 U CN202117984 U CN 202117984U CN 2011202401728 U CN2011202401728 U CN 2011202401728U CN 201120240172 U CN201120240172 U CN 201120240172U CN 202117984 U CN202117984 U CN 202117984U
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- China
- Prior art keywords
- impeller
- axle
- transmission structure
- drive mechanism
- shaft
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Abstract
The utility model discloses a transmission structure of an impeller, a centrifugal compressor comprising the transmission structure and an air conditioner comprising the transmission structure. The transmission structure of the impeller comprises a shaft and the impeller sleeved on the shaft, threads are disposed at the front end of a part, which is sleeved with the impeller, of the shaft, a locking nut is meshed with the threads, a thrust disc is disposed at the rear end of the part, which is sleeved with the impeller, of the shaft and attached to the impeller, a plurality of shaft eccentric arcs are arranged on the part, which is sleeved with the impeller, of the shaft, and the impeller is provided with a plurality of impeller eccentric arcs corresponding to the shaft eccentric arcs of the sleeving part of the shaft. The transmission structure can overcome the shortcoming of stress concentration due to connection by the aid of keys, is easy to be assembled, can effectively improve assembly efficiency of the impeller, and simultaneously is more suitable for high-speed running conditions and favorable for increasing rotation speed of the impeller.
Description
Technical field
The utility model relates to a kind of field of air conditioning, refers in particular to a kind of drive mechanism of impeller and has the centrifugal compressor and the air-conditioning of this drive mechanism.
Background technique
For centrifugal compressor, impeller torque drive structure commonly used is: band key Placement and no key Placement.
The assembling of band key Placement is simple, concentrates but when transmitting torque, can produce stress at the key place, especially can stress when transmitting large torque crosses ambassador's impeller key groove place and cracks, and then destroy impeller, causes the accident.For fear of this thing happens, often adopt two key Placements to reduce stress in the design and concentrate, but since two keys need simultaneously with impeller and axle on keyway mate each other, need spend the plenty of time to remove the reconditioning key, manufacturing efficiency is lower.
No key Placement is to utilize the frictional force that is produced that compresses of impeller and between centers to come transmitting torque; This mode is transmitted reliably; But efficiency of assembling is very low, for reaching the transmission required torque, often need stretch to lock to axle and handle; Therefore very big to the manufacturing efficiency influence, very unfavorable to producing in batches especially.
Summary of the invention
The goal of the invention of the utility model is to overcome the existing technology defective; A kind of drive mechanism of impeller is provided and has the centrifugal compressor and the air-conditioning of this drive mechanism; It can overcome the stress concentration phenomenon that the band key connects, and assembling easily, can effectively improve the efficiency of assembling of impeller.
The utility model is achieved in that
A kind of drive mechanism of impeller, it comprises axle and is sleeved on the impeller on the said axle,
Be provided with screw thread at said front end with the axle of impeller suit part;
Locking nut is with said thread engagement;
Thrust button is arranged on the rearward end of said axle and the axle of said impeller suit part, said thrust button and the applying of said impeller;
Wherein, said axle is provided with multistage eccentric shaft circular arc with the axle of the suit part of said impeller, and said impeller is provided with and the corresponding multistage impeller eccentric arc of said axle sleeve dress part multistage eccentric shaft circular arc.
Through the interference fit between said axle and said impeller said impeller is carried out the location, axle center; Cooperation through said eccentric arc of multistage axle and the said impeller eccentric arc of multistage; When axle rotates; Because the wobbler action of said eccentric shaft circular arc and said impeller eccentric arc makes said axle be easy to drive said wheel rotation, realizes the transmission of moment of torsion.
Preferably, said thrust button and said axle are wholely set, and the joint of said thrust button and said axle is stepped shaft.
Preferably, the hop count of the hop count of said eccentric shaft circular arc and said impeller eccentric arc needs the increase of the moment of torsion of transmission to reduce with said axle.When the moment of torsion that transmits when said axle is big more, need to increase the area of contact of said axle and said impeller, therefore, when the moment of torsion of axle transmission was big more, the hop count of the hop count of said eccentric shaft circular arc and said impeller eccentric arc was few more; The moment of torsion that transmits when said axle more hour, the hop count of the hop count of said eccentric shaft circular arc and said impeller eccentric arc should increase more, to avoid the stress concentration phenomenon.
Preferably, the hop count of said eccentric shaft circular arc is 3 sections, and the hop count of said impeller eccentric arc is 3 sections.
Preferably, the radius of said eccentric shaft circular arc needs the increase of the moment of torsion of transmission to increase with said axle.
Preferably, connect through arc transition between the adjacent said eccentric shaft circular arc, to eliminate the wedge angle between the adjacent said eccentric shaft circular arc.
The utility model also provides a kind of centrifugal compressor, and it includes the drive mechanism like above each described impeller.
The utility model more provides a kind of air-conditioning, and it includes centrifugal compressor as previously discussed.
The drive mechanism of the utility model impeller and have the centrifugal compressor and the air-conditioning of this drive mechanism compared with prior art, has following beneficial effect:
Through the interference fit between said axle and said impeller said impeller is carried out the location, axle center; Cooperation through said eccentric arc of multistage axle and the said impeller eccentric arc of multistage; Guarantee stationarity that impeller power transmits, to neutrality, assembling has easily improved the efficient of impeller assembling; On the other hand,, make the drive mechanism of this impeller be more suitable for the operating mode that runs up, be convenient to improve the rotating speed of impeller, be easy to reduce the size of impeller through the fixation of locking nut.
Description of drawings
Fig. 1 is the assembling schematic representation of the utility model impeller and axle;
Fig. 2 is the A-A line sectional view of Fig. 1;
Fig. 3 is the structural representation of axle.
Embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing:
The utility model air-conditioning; It comprises centrifugal compressor, includes the drive mechanism of impeller in the said centrifugal compressor, like Fig. 1 to shown in 3; The drive mechanism of said impeller comprises impeller 1, axle 2, locking nut 5 and thrust button 4, and said impeller 1 is set on the said axle 2; Be provided with screw thread at said 2 front end with the axle 1 of said impeller 1 suit part 21; Said locking nut 5 and said thread engagement; Said thrust button 4 is arranged on the rearward end of the axle 2 of said axle 2 and said impeller suit part 21, and said thrust button 4 is fitted with said impeller 1; Said axle 2 is provided with multistage eccentric shaft circular arc 3 with the suit part 21 of said impeller 1; Said impeller 1 is provided with the multistage impeller eccentric arc that cooperates with said axle sleeve dress part 21 and (schemes not shown; Because said impeller 1 and said axle 2 interference fit; Therefore, said impeller eccentric arc overlaps with said eccentric shaft circular arc).
Preferably, in order to make said axle 2 when the high speed rotating, make said locking nut 4 and said axle 2 revolve tighter and tighter, the rotation direction of said locking nut 4 is opposite with said 2 sense of rotation.
Wherein, said thrust button 4 is wholely set with said axle 2, and the joint of said thrust button 4 and said axle 2 is stepped shaft.The hop count of the hop count of said eccentric shaft circular arc 3 and said impeller eccentric arc needs the increase of the moment of torsion of transmission to reduce with said axle 2.The size of the radius of said eccentric shaft circular arc 3 needs the increase of the moment of torsion of transmission to increase with said axle 2.In this preferred embodiment, the hop count of said eccentric shaft circular arc 3 is 3 sections, and the hop count of said impeller eccentric arc is 3 sections.
In order to overcome the cusp of adjacent two said eccentric shaft circular arc 3 joints, connect through arc transition between the adjacent said eccentric shaft circular arc 3.
More than be merely the specific embodiment of the utility model, do not limit the protection domain of the utility model with this; Do not violate any replacement and the improvement of being done on the basis of the utility model design, all belonging to the protection domain of the utility model.
Claims (8)
1. the drive mechanism of an impeller, it comprises axle and is sleeved on the impeller on the said axle,
Be provided with screw thread at said front end with the axle of said impeller suit part;
Locking nut is with said thread engagement;
Thrust button is arranged on the rearward end of said axle and the axle of said impeller suit part, said thrust button and the applying of said impeller;
It is characterized in that said axle is provided with multistage eccentric shaft circular arc with the axle of the suit part of said impeller, said impeller is provided with and the corresponding multistage impeller eccentric arc of said axle sleeve dress part multistage eccentric shaft circular arc.
2. the drive mechanism of impeller as claimed in claim 1 is characterized in that, said thrust button and said axle are wholely set, and the joint of said thrust button and said axle is stepped shaft.
3. the drive mechanism of impeller as claimed in claim 1 is characterized in that, the hop count of the hop count of said eccentric shaft circular arc and said impeller eccentric arc needs the increase of the moment of torsion of transmission to reduce with said axle.
4. the drive mechanism of impeller as claimed in claim 1 is characterized in that, the hop count of said eccentric shaft circular arc is 3 sections, and the hop count of said impeller eccentric arc is 3 sections accordingly.
5. the drive mechanism of impeller as claimed in claim 1 is characterized in that, the radius of said eccentric shaft circular arc needs the increase of the moment of torsion of transmission to increase for size with said axle.
6. the drive mechanism of impeller as claimed in claim 1 is characterized in that, connects through arc transition between the adjacent said eccentric shaft circular arc.
7. a centrifugal compressor is characterized in that, it includes the drive mechanism like each described impeller of claim 1 to 6.
8. an air-conditioning is characterized in that, it includes centrifugal compressor as claimed in claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202401728U CN202117984U (en) | 2011-07-08 | 2011-07-08 | Transmission structure of impeller, centrifugal compressor comprising transmission structure and air conditioner comprising transmission structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202401728U CN202117984U (en) | 2011-07-08 | 2011-07-08 | Transmission structure of impeller, centrifugal compressor comprising transmission structure and air conditioner comprising transmission structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202117984U true CN202117984U (en) | 2012-01-18 |
Family
ID=45459053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202401728U Expired - Lifetime CN202117984U (en) | 2011-07-08 | 2011-07-08 | Transmission structure of impeller, centrifugal compressor comprising transmission structure and air conditioner comprising transmission structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202117984U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402019A (en) * | 2016-10-21 | 2017-02-15 | 珠海格力电器股份有限公司 | Impeller locking structure and compressor |
| CN109882428A (en) * | 2019-04-18 | 2019-06-14 | 西安联创分布式可再生能源研究院有限公司 | A kind of energy recovery type Driven by Coaxial centrifugal blower group |
| CN114857083A (en) * | 2022-05-23 | 2022-08-05 | 重庆通用工业(集团)有限责任公司 | Machining device and method for shaft connecting structure of three-dimensional flow impeller and pinion |
-
2011
- 2011-07-08 CN CN2011202401728U patent/CN202117984U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402019A (en) * | 2016-10-21 | 2017-02-15 | 珠海格力电器股份有限公司 | Impeller locking structure and compressor |
| CN109882428A (en) * | 2019-04-18 | 2019-06-14 | 西安联创分布式可再生能源研究院有限公司 | A kind of energy recovery type Driven by Coaxial centrifugal blower group |
| CN114857083A (en) * | 2022-05-23 | 2022-08-05 | 重庆通用工业(集团)有限责任公司 | Machining device and method for shaft connecting structure of three-dimensional flow impeller and pinion |
| CN114857083B (en) * | 2022-05-23 | 2024-03-08 | 重庆通用工业(集团)有限责任公司 | Machining device and method for ternary flow impeller and pinion shaft connecting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120118 |