CN206468546U - A kind of single-stage high-speed centrifugal blower - Google Patents
A kind of single-stage high-speed centrifugal blower Download PDFInfo
- Publication number
- CN206468546U CN206468546U CN201720043275.2U CN201720043275U CN206468546U CN 206468546 U CN206468546 U CN 206468546U CN 201720043275 U CN201720043275 U CN 201720043275U CN 206468546 U CN206468546 U CN 206468546U
- Authority
- CN
- China
- Prior art keywords
- impeller
- high speed
- centrifugal blower
- speed shaft
- spiral case
- 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
Links
Abstract
The utility model discloses a kind of single-stage high-speed centrifugal blower, including gearbox and the impeller being connected on high-speed shaft of gear box, with the spiral case being trapped among outside impeller, the bottom surface of the impeller is connected with the top of high speed shaft by several bolts, and 12 alignment pins are additionally provided between the bottom surface of the impeller and the top of high speed shaft.The spiral case has an impeller cover, and the diameter of the impeller cover is more than the diameter of impeller.Single-stage high-speed centrifugal blower of the present utility model is employed, impeller and high speed Axile connection structure are using positioning finger setting, and bolt is fastenedly connected new construction, this structure is beneficial to connection and fastened, and position is accurate, it is ensured that high speed shafting safe operation, meanwhile, split type spiral case makes the dismounting of impeller more facilitate.
Description
Technical field
The utility model is related to a kind of centrifugal blower, more particularly to a kind of that there is impeller with high speed shaft there is innovation to be connected
Structure, while the single-stage high-speed centrifugal blower of the volute structure with easy disassembly impeller again, belongs to HVAC field of mechanical technique.
Background technology
Single-stage high-speed centrifugal blower is widely used in sewage treatment aeration system, and it has up to ten thousand turns of high rotating speed,
Its structure generally includes spiral case, impeller and gearbox, and impeller uses single-stage cantilever structure, radially axial admission, exhaust.Impeller is
The heart of monopole centrifugal blower, by the centrifugal force produced and vibration stress effect is rotated at a high speed in operating, runs work
Condition is especially complex.Impeller and change box high speed axle are the critical pieces in rotating, and its degree of being connected firmly both had been related to air blower fortune
Capable safety and performance, but whether dismounting facilitates relevant during with air blast machine overhauling.The impeller of existing single-stage high-speed centrifugal blower
The center of impeller is passed through for the spindle nose of high speed shaft with the connected mode of high speed shaft, high speed shaft spindle nose with a nut impeller
Top surface tighten, influenceed by this structure, the diameter of high speed shaft can not be made larger, and impeller is when running at high speed, high speed shaft meeting
There is a small amount of performance rocked, have impact on blower fan；Meanwhile, the spiral case of present single-stage high-speed centrifugal blower is an entirety, is needed
First impeller is fixed on high speed shaft, then spiral case is fixed on gearbox again, when removing impeller, then needs first to remove spiral case
Impeller is removed again, because the spiral case weight that cast iron is made is very big so that dismounting is very inconvenient.
Utility model content
To overcome drawbacks described above, the utility model aims to provide the connection side of a kind of relatively reliable impeller and high speed shaft
Formula, and the single-stage high-speed centrifugal blower with the volute structure for more facilitating dismounting impeller.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：A kind of single-stage high-speed centrifugal blower, including become
Fast case and the impeller being connected on high-speed shaft of gear box, and the spiral case being trapped among outside impeller, the bottom surface of the impeller and high speed shaft
Top be connected by several bolts, 1-2 alignment pin is additionally provided between the bottom surface of the impeller and the top of high speed shaft.
The top of the high speed shaft is more than the linkage section of axis body provided with a diameter, and the top center of the linkage section is provided with
The connection step of one indent, the periphery of the linkage section is provided with a circle labyrinth seal.
The spiral case has an impeller cover, and the diameter of the impeller cover is more than the diameter of impeller.
Single-stage high-speed centrifugal blower of the present utility model is employed, impeller and high speed Axile connection structure are fixed using alignment pin
Position, bolt is fastenedly connected new construction, and this structure is beneficial to connection and fastened, and position is accurate, it is ensured that high speed shafting safe operation, together
When, split type spiral case makes the dismounting of impeller more facilitate.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1- gearboxes, 2- high speed shafts, 3- impellers, 4- spiral cases, 5- bolts, 6- alignment pins, 7- impeller covers, 8- air intakes
Mouthful, 9- air outlets, 10- elastomeric pads, 11- linkage sections, 12- connection steps, 13- labyrinth seals.
Embodiment
As shown in figure 1, the utility model discloses a kind of single-stage high-speed centrifugal blower, including gearbox 1 and it is connected to change
Impeller 3 on fast case high speed axis 2, and the spiral case 4 of the outside of impeller 3 is trapped among, high speed shaft 2 is brought up to by gearbox 1 by high rotating speed,
The high-speed rotation of impeller 3, air is flowed into spiral case 4 from air inlet 8, and the high velocity air after accelerating is stirred through impeller 3 from air-out
Mouth 9 flows out, and in summary, the structure with existing single-stage high-speed centrifugal blower is basically identical, and its innovative point essentially consists in described
The bottom surface of impeller 3 is connected with the top of high speed shaft 2 by several bolts 5, in practical operation, generally using 4 bolts
5,1-2 alignment pin 6 is additionally provided between the bottom surface of the impeller 3 and the top of high speed shaft 2.During installation, first alignment pin 6 is inserted
In positioning hole, the bottom surface of impeller 3 is then pushed against the top of high speed shaft, then tightened in bolt 5, screw thread using screw thread glue, it is ensured that
Screw thread is not failed, after connecting, and dynamic balancing and overspeed test are done together, to ensure security., can be with using this connected mode
Using larger-diameter high speed shaft 2, it is ensured that the stability that impeller 3 is rotated.
Another innovative point of the present utility model is that the top of the high speed shaft 2 is more than the company of axis body provided with a diameter
Section 11 is connect, the top center of the linkage section 11 is provided with the connection step 12 of an indent, and the periphery of the linkage section 11 is provided with
One circle labyrinth seal 13.Such a structure is safe and reliable, while impeller 3 and the connection fastening of high speed shaft 2 is ensured, the big axle of front end
Footpath linkage section 11, farthest improves the contact area of impeller 3 and high speed shaft 2, adds the intensity of high speed shaft 2, can be with
At utmost increase the diameter and transmission intensity of cantilever high speed shaft.Due to having little gear, little gear on the other end of cantilever high speed shaft 2
Diameter have bigger adjusting range, can make gearbox operating it is more steady.Meanwhile, such a attachment structure facilitates labyrinth seal 13
Design and produce and install, the large-diameter linkage section 11 of front end, labyrinth seal 13 be in order to prevent gas leak effect, labyrinth
Sealing 13 typically uses half-open Split type structure, and labyrinth seal 13 first installs the latter half when installing, top half is installed afterwards.Operation
The size in space directly affects installation and the air-tightness of labyrinth seal 13, and the diameter of axle is more big more is easy to the installation of labyrinth seal 13 and dimension
Shield.
Another innovative point of the present utility model is that the spiral case 4 has impeller cover 7, the impeller cover 7 it is straight
Footpath is more than the diameter of impeller 3.By impeller cover 7, spiral case 4 is set to be divided into two, only need to be the less impeller cover 7 of weight during maintenance
Remove, it is possible to dismount impeller 3.Impeller cover 7 is generally also connected by screw bolts with spiral case 4, and its faying face must use cushion
Piece 10, to ensure that the high pressure draught in spiral case 4 is not leaked away.
Claims (3)
1. a kind of single-stage high-speed centrifugal blower, including gearbox (1) and the impeller (3) that is connected on high-speed shaft of gear box (2), and
It is trapped among the spiral case (4) outside impeller (3), it is characterised in that the bottom surface of the impeller (3) and the top of high speed shaft (2) pass through some
Individual bolt (5) is connected, and 1-2 alignment pin (6) is additionally provided between the bottom surface of the impeller (3) and the top of high speed shaft (2).
2. single-stage high-speed centrifugal blower according to claim 1, it is characterised in that the top of the high speed shaft (2) is provided with one
Individual diameter is more than the linkage section (11) of axis body, connection step of the top center provided with an indent of the linkage section (11)
(12), the periphery of the linkage section (11) is provided with a circle labyrinth seal (13).
3. single-stage high-speed centrifugal blower according to claim 1, it is characterised in that the spiral case (4) has an impeller cover
(7), the diameter of the impeller cover (7) is more than the diameter of impeller (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720043275.2U CN206468546U (en) | 2017-01-13 | 2017-01-13 | A kind of single-stage high-speed centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720043275.2U CN206468546U (en) | 2017-01-13 | 2017-01-13 | A kind of single-stage high-speed centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206468546U true CN206468546U (en) | 2017-09-05 |
Family
ID=59706824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720043275.2U Expired - Fee Related CN206468546U (en) | 2017-01-13 | 2017-01-13 | A kind of single-stage high-speed centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206468546U (en) |
-
2017
- 2017-01-13 CN CN201720043275.2U patent/CN206468546U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101473515B (en) | Motor rotor and method of correcting rotational balance of the same | |
| CN101922459B (en) | Electric composite multi-stage centrifugal compressor device | |
| CN201747671U (en) | Impeller and shaft connection structure of turbine compressor | |
| CN205136122U (en) | Blade angle adjustable axial fan impeller | |
| JP2005155446A (en) | Centrifugal type impeller | |
| CN105987018A (en) | Centrifugal fan with multiple groups of fan blades | |
| CN206071945U (en) | A kind of centrifugal wind wheel, using its centrifugal blower and air-conditioner | |
| CN105531463B (en) | Exhaust turbine supercharger | |
| CN203614465U (en) | Baffle mode eddy device of gas compressor and gas compressor | |
| CN106640739A (en) | Adjustable centrifugal compressor circular seam air-entraining structure | |
| CN206468546U (en) | A kind of single-stage high-speed centrifugal blower | |
| CN206487639U (en) | A kind of centrifugal blower case | |
| CN204716608U (en) | A kind of Novel inclined flow fan clamping tooling | |
| CN201363185Y (en) | Axial flow fan of vehicle motor | |
| CN203730358U (en) | Diesel locomotive traction motor cooling ventilator | |
| CN113847257B (en) | Magnetic suspension axial flow fan structure | |
| CN105673557B (en) | The centrifugal fan device and installation method of rail traffic huge discharge oilless air compressor | |
| CN107781176A (en) | A kind of stacked Multi-layer centrifugal formula blower fan | |
| CN207513871U (en) | A kind of stacked Multi-layer centrifugal formula wind turbine | |
| CN209145915U (en) | A kind of energy recovery type Driven by Coaxial centrifugal blower group | |
| CN206785739U (en) | Folk art term explosion-proof axial flow fan | |
| CN1195153C (en) | Axial-flow blower | |
| CN205578343U (en) | Big discharge capacity oil -free air compressor's of track traffic centrifugal fan | |
| CN203441545U (en) | Bolt shaft tightening impeller and connection structure of impeller and turbine shaft | |
| CN105971718A (en) | Oil leakage preventing device used for turbosupercharger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhu Wenqiang Inventor after: Xu Jianfeng Inventor after: Huang Bingchen Inventor before: Zhu Wenqiang Inventor before: Xu Jianfeng |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 312300 No. 1818, Renmin West Road, Dongguan Street, Shangyu District, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Shangfeng high tech special wind industry Co.,Ltd. Address before: 312300 No. 1818 Renmin West Road, Shangyu District, Zhejiang, Shaoxing Patentee before: ZHEJIANG SHANGFENG HI-TECH SPECIALIZED WIND INDUSTRIAL Co.,Ltd. |
|
| 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: 20170905 Termination date: 20220113 |