CN203214417U - Self-locking fan rotor set device - Google Patents
Self-locking fan rotor set device Download PDFInfo
- Publication number
- CN203214417U CN203214417U CN 201320095519 CN201320095519U CN203214417U CN 203214417 U CN203214417 U CN 203214417U CN 201320095519 CN201320095519 CN 201320095519 CN 201320095519 U CN201320095519 U CN 201320095519U CN 203214417 U CN203214417 U CN 203214417U
- Authority
- CN
- China
- Prior art keywords
- impeller
- main shaft
- locking
- self
- fan rotor
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a self-locking fan rotor set device which comprises a main shaft and an impeller connected to the main shaft. The impeller incasing end of the main shaft is provided with threads which are connected with locking nuts tightly close to the impeller, and the threaded rotating direction of the locking nuts are opposite to the rotating direction of the impeller. After the self-locking fan rotor set device is used, the impeller is positioned by the locking nuts, when the main shaft drives the impeller to rotate, the locking nuts relatively lag due to the inertial effect, the threaded rotating direction of the locking nuts are opposite to the rotating direction of the impeller, so that connection of the locking nuts and the main shaft becomes tighter and tighter, and the locking nuts achieve an automatic locking function. The self-locking fan rotor set device is reliable in positioning, and capable of reducing matching requirement of the main shaft and an impeller hole, so that interference assembling is changed to transition assembling.
Description
Technical field
But the utility model is specifically related to a kind of fan rotor group device of self-locking.
Background technique
At present, the positioning form of large fan rotor set impeller sets and main shaft adopts interference fit usually and locatees by Cock screw both at home and abroad.But on-the-spot this structure in service of actual production manufacturing and user exists following potential safety hazard and structural imperfection: large fan refers to that mainly the main shaft axle journal is usually at 250mm～500mm, the working speed height also bears the rotor set of load greatly, axle need adopt big interference fit with the hole, and processing and assembly technology difficulty are big.When blower fan at high temperature moves thermal expansion can appear, if Cock screw is loosening or be subjected to external impacts, impeller sets and main shaft easily to produce relative displacement and cause impeller play, rotor set to vibrate great Accident due to qualitys such as aggravation.The case of impeller sets displacement, play all once appearred in large fan rotor set both domestic and external in the on-the-spot operation of user and transportation process.
The model utility content
But the purpose of this utility model provides a kind of fan rotor group device of realizing the self-locking of reliable location and auto lock, and this device also can reduce the requirement that cooperates between main shaft and the impeller, it is assembled by interference change transition into and assemble.
But the technological scheme that the utility model adopts is a kind of fan rotor group device of self-locking, comprise main shaft, be connected the impeller on the main shaft, the impeller end of packing into arranges screw thread on the described main shaft, connect the locking nut near impeller on the described screw thread, described locking nut thread rotary orientation is opposite with the wheel rotation direction.
Useful technique effect of the present utility model is: after adopting this device, impeller positions by locking nut, when main shaft begins the drives impeller rotation, locking nut is owing to the action of inertia motion relatively lags behind, and because the thread rotary orientation of locking nut and the direction of rotation of impeller, be that locking nut and being connected of main shaft will be more and more tighter, thereby make locking nut realize the auto lock function, this device location reliably and also can reduce the requirement that cooperates of main shaft and impeller bore, make it change the transition assembling into by the interference assembling, reduced the difficulty of processing and assembly technology.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein: 1, locking nut; 2, impeller; 3, main shaft; 4, tighten the station hole.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
But the fan rotor group device of a kind of self-locking as shown in Figure 1, comprise main shaft 3, be connected the impeller 2 on the main shaft 3, impeller 2 end of packing into arranges screw thread on the described main shaft 3, connects the locking nut 1 near impeller 2 on the described screw thread, described locking nut 1 thread rotary orientation and impeller 2 direction of rotation.After adopting this device, impeller 2 positions by locking nut 1, when main shaft 3 begins to rotate, locking nut 1 is owing to the action of inertia motion relatively lags behind, and because the thread rotary orientation of locking nut 1 and the direction of rotation of impeller 2, that is to say that locking nut 1 and being connected of main shaft 3 will be more and more tighter, thereby make locking nut 1 realize the auto lock function, so this device location reliably and also can reduce the requirement that cooperates between main shaft 3 and the impeller 2, make it change the transition assembling into by the interference assembling, greatly reduce the difficulty of processing and assembling.
Further, surface, described locking nut 1 outer ring is provided with and tightens station hole 4.Tighten station hole 4 in locking nut 1 setting, make that instrument easy to use assembles in assembling, as arm bar, by lever principle locking nut 1 is tightened, improved efficiency of assembling greatly.
Further, the described station hole 4 of tightening is away from the locating face of 2 in locking nut 1 and impeller.Be set to locating face away from 2 in locking nut 1 and impeller with tightening station hole 4, the face of taking back of locking nut 1 as shown in Figure 1 just, mobilizable space is bigger when make using arm bar tighten locking nut 1, can not produce interference phenomenon, has further improved efficiency of assembling.Be more preferably, described station hole 4 quantity of tightening are 8 and evenly distributed on locking nut 1.To tighten station hole 4 and be set to 8, which decide by tightening in station hole according to actual conditions in the time of arm bar easy to use, that is to say when the bad operation of arm bar is used in a station hole, can use another station hole instead and operate, feasible speeding up of assembling.Certainly, also can not necessarily to arrange 8 according to the quantity of tightening station hole 4, in practical operation, can rational quantity be set according to the concrete size of locking nut 1.
The utility model has successfully solved the large fan rotor set and be prone to potential safety hazards such as impeller sets displacement, play in operation and transportation process; Reduced the technology difficulty that cooperate requirement and hot jacket assembling of main shaft 3 with impeller 2.Reduce cost of production, optimized structural design.
Claims (4)
1. but the fan rotor group device of a self-locking, comprise main shaft (3), be connected the impeller (2) on the main shaft (3), it is characterized in that: the last impeller (2) of described main shaft (3) is packed into to hold screw thread is set, connect locking nut (1), described locking nut (1) thread rotary orientation and impeller (2) direction of rotation near impeller (2) on the described screw thread.
2. but the fan rotor group device of self-locking according to claim 1, it is characterized in that: described locking nut (1) surface, outer ring is provided with tightens station hole (4).
3. but the fan rotor group device of self-locking according to claim 2, it is characterized in that: the described station hole (4) of tightening is away from the locating face between locking nut (1) and impeller (2).
4. but the fan rotor group device of self-locking according to claim 2, it is characterized in that: the described station hole (4) of tightening is 8 and evenly distributed in locking nut (1) outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320095519 CN203214417U (en) | 2013-03-01 | 2013-03-01 | Self-locking fan rotor set device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320095519 CN203214417U (en) | 2013-03-01 | 2013-03-01 | Self-locking fan rotor set device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214417U true CN203214417U (en) | 2013-09-25 |
Family
ID=49203961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320095519 Expired - Fee Related CN203214417U (en) | 2013-03-01 | 2013-03-01 | Self-locking fan rotor set device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915410A (en) * | 2019-04-18 | 2019-06-21 | 西安联创分布式可再生能源研究院有限公司 | A kind of centrifugal blower multi-stage impeller mounting structure |
-
2013
- 2013-03-01 CN CN 201320095519 patent/CN203214417U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915410A (en) * | 2019-04-18 | 2019-06-21 | 西安联创分布式可再生能源研究院有限公司 | A kind of centrifugal blower multi-stage impeller mounting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20130925 Termination date: 20170301 |