CN207906153U - A kind of wind turbine volute tongue - Google Patents
A kind of wind turbine volute tongue Download PDFInfo
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- CN207906153U CN207906153U CN201820131097.3U CN201820131097U CN207906153U CN 207906153 U CN207906153 U CN 207906153U CN 201820131097 U CN201820131097 U CN 201820131097U CN 207906153 U CN207906153 U CN 207906153U
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- volute tongue
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Abstract
The utility model discloses a kind of wind turbine volute tongues, including volute tongue ontology, it is characterised in that：Before and after the lip of the tongue of volute tongue ontology is equipped with along volute tongue ontology column and the second rotation column are revolved to the first of distribution, first rotation column corresponds to the preceding disk area of volute tongue, second revolves the central disc area that column corresponds to volute tongue, and the first rotation column and the second rotation column can rotate synchronously and second revolves velocity of rotation of the velocity of rotation more than the first rotation column of column.The utility model has the advantage of：The lip of the tongue of the wind turbine volute tongue is equipped with the first rotation column and the second rotation column, first rotation column is set to disk area before volute tongue, second rotation column is set to the central disc area of volute tongue, and second rotation column velocity of rotation be more than first rotation column velocity of rotation, side can generate the Ring fluid layer of friction speed before and after volute tongue as a result, to adapt to the variation of impeller outlet speed from front to back, to obtain more stable air quantity and wind pressure, and conducive to reduction noise.
Description
Technical field
The utility model is related to a kind of wind turbine volute tongues.
Background technology
Multi-wing centrifugal fan is and wide because having many advantages, such as that compact-sized, pressure coefficient is high, discharge coefficient is big and low noise
It is general to be applied in range hood.The centrifugal blower of existing range hood is both provided with volute tongue, the work of volute tongue near volute outlet
With being to prevent portion gas in spiral case internal circulation flow.Find that impeller outlet air-flow is stronger to the impulse ratio of volute tongue through experiment,
Gas flowing near volute tongue is complex, and is affected to fan performance.In addition, rotate in air can band for object
Dynamic surrounding fluid rotation, rotates the circulation and fluid interaction of generation, so that the fluid velocity of object side is increased, another effluent
Body speed reduces, this phenomenon is known as Magnus effect.Currently, people for wind turbine volute tongue structure improvement mainly from drop
It low fan noise and eliminates vortex angle and considers, such as (application publication number is application No. is 201210210890.X
Disclosed in Chinese invention patent application 103512064A)《Smoke exhaust ventilator and its spiral case, volute tongue》, volute tongue includes indent
Face, inner concave are smooth surface, to keep the air-flow at volute tongue more smooth, and then advantageously reduce noise, although, the improvement
Volute tongue afterwards is designed to that inner concave structure is to consider the changing rule of impeller outlet speed from front to back not examine still
Consider and how to promote air quantity and wind pressure angle from effective volute tongue structure is improved.In conclusion needing to existing wind turbine
Volute tongue structure is further improved.
Utility model content
Technical problem to be solved in the utility model is present situation for the above-mentioned prior art, provide it is a kind of can be before volute tongue
Rear side can generate the wind turbine volute tongue of the gas annulate lamella of friction speed.
Technical solution is used by the utility model solves above-mentioned technical problem：The wind turbine volute tongue, including volute tongue ontology,
It is characterized in that：Before and after the lip of the tongue of the volute tongue ontology is equipped with along volute tongue ontology column and second is revolved to the first of distribution
Revolving column, the first rotation column corresponds to the preceding disk area of volute tongue, and the second rotation column corresponds to the central disc area of volute tongue, and described the
One rotation column and the second rotation column can rotate synchronously and the velocity of rotation of the second rotation column is more than the first velocity of rotation for revolving column.
Preferably, the lip of the tongue of the volute tongue ontology be provided with along before and after volute tongue ontology to the mounting groove of distribution, described
One rotation column and the second rotation column are embedded in the mounting groove.
First rotation column and the second rotation column can be there are many rotational structures, it is preferable that be equipped in the mounting groove it is front and back to
The driving shaft and planet carrier of distribution are equipped with the first driving gear and the second driving gear, the planet carrier on the driving shaft
On the first planetary gear and the second planetary gear are installed, first planetary gear is meshed with the first driving gear, described
Second planetary gear is meshed with the second driving gear, and internal tooth is equipped on the internal perisporium of the first rotation column and the second rotation column
Ring, first planetary gear and the second planetary gear are meshed with corresponding internal gear, the mounting groove antetheca or after
Motor for driving the driving shaft rotation is installed on wall.The corresponding gear set of first rotation column and the corresponding tooth of the second rotation column
Wheel group uses different transmission ratios, so that it may so that the first rotation column and the second rotation column have different velocities of rotation.
Further preferably, the first rotation column and the second rotation column are the identical cylinder of diameter, accordingly, the installation
Slot has the arc-shaped concave to match with the periphery.
In order to enable the first rotation column and the second rotation column easily to realize, relative rotation, the first rotation column and the second rotation column pass through
Bearing is connected.
Further preferably, the upper wall surface of the volute tongue ontology is training wall, and the lower wall surface of volute tongue ontology is reflux wall, described
First rotation column and the second rotation column are engaged between training wall and reflux wall.
In order to make the first rotation column and the second rotation column preferably coordinate with volute tongue ontology, the first rotation column and second revolves column
The smooth surface transition on surface and training wall, the wall that flows back.
Further preferably, the volute tongue ontology is integrated.
As the preferred of any of the above-described scheme, it is also equipped with and the second rotation column in the lip of the tongue of the volute tongue ontology
The third of synchronous rotation revolves column, and the third rotation column corresponds to the rear disk area of volute tongue, and the rotary speed of third rotation column is less than
The rotary speed of second rotation column.
Preferably, the first rotation column, the second rotation column and third rotation column are the identical cylinder of diameter and lead to successively
Bearing is crossed to be connected.
Compared with prior art, the utility model has the advantage of：The lip of the tongue of the wind turbine volute tongue is equipped with the first rotation column
With the second rotation column, first, which revolves column, is set to disk area before volute tongue, and the second rotation column is set to the central disc area of volute tongue, and turn of the second rotation column
Dynamic speed is more than the velocity of rotation of the first rotation column, and side can generate the Ring fluid layer of friction speed before and after volute tongue as a result, so that snail
Nearby deflection air-flow is apparent for tongue mid-game, and volute tongue shroud nearby deflects air-flow unobvious, to adapt to impeller outlet speed from front to back
Variation, to obtain more stable air quantity and wind pressure, and conducive to reducing noise.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the decomposition diagram of the utility model embodiment；
Fig. 3 is the internal structure schematic diagram of the first, second or third rotation column of the utility model embodiment；
Fig. 4 is the mounting structure schematic diagram of the gear set of the utility model embodiment；
Fig. 5 is the utility model embodiment structure sectional view at the first rotation column；
Fig. 6 is the blower fan structure schematic diagram for being equipped with the utility model embodiment.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing embodiment.
As shown in Figures 1 to 4, to the wind turbine volute tongue in the present embodiment includes volute tongue ontology before being with direction shown in arrow A
1, volute tongue ontology 1 is integrated, and the lip of the tongue of volute tongue ontology 1 is provided with mounting groove 11, before and after mounting groove 11 is along volute tongue ontology 1
To distribution, mounting groove 11 has antetheca 12 and rear wall 13, forms arc-shaped concave between antetheca 12 and rear wall 13, volute tongue ontology 1
Upper wall surface is training wall 14, and the lower wall surface of volute tongue ontology 1 is reflux wall 15.
It is sequentially installed with the first rotation column 21, second rotation column 22 and third rotation column 23 from front to back in mounting groove 11, wherein
First rotation column 21 corresponds to the preceding disk area of volute tongue, the central disc area of the second rotation corresponding volute tongue of 22, column, and third revolves column 23 and corresponds to snail
The rear disk area of tongue.In the present embodiment, it is the identical circle of diameter that the first rotation column 21, second, which revolves column 22 and third rotation column 23,
Column, to be matched with the arc-shaped concave of the mounting groove 11 on volute tongue ontology 1, the first rotation column 21, second revolves column 22 and third rotation
Column 23 can be used for being connected the training wall 14 and reflux wall 15 of volute tongue ontology, also, the first rotation column 21, second revolves column 22 and third
Revolve the smooth surface transition on the surface and training wall 14, the wall 15 that flows back of column 23.For ensure between each other can flexible rotating, first
It is connected by bearing 8 between the rotation rotation column 22 of column 21 and second and between the second rotation column 22 and third rotation column 23.
First rotation column 21, second revolves column 22 and the rotational structure of third rotation column 23 is as follows：
It is equipped with front and back driving shaft 3 and planet carrier 4 to distribution in the mounting groove 11, in the present embodiment, planet carrier 4 is three
It is parallel to each other to the driven shaft of driving shaft 3, is equipped on driving shaft 3 and is sequentially installed with the first driving gear 51, from front to back
Two driving gears 52 and third driving gear 53 are sequentially installed with the first planetary gear 61, the second row on planet carrier 4 from front to back
Star gear 62 and third planet gear 63, also, the first planetary gear 61 is meshed with the first driving gear 51, the second planet tooth
Wheel 62 is meshed with the second driving gear 52, and third planet gear 63 is meshed with third driving gear 53, the first rotation column 21,
It is equipped with internal gear 24, the first planetary gear 61, the second planetary gear 62 on the internal perisporium of second rotation column 22 and third rotation column 23
It is meshed, is equipped on the antetheca 12 of mounting groove 11 for driving actively with corresponding internal gear 24 with third planet gear 63
The motor 7 that axis 3 rotates.
As shown in Figure 5 and Figure 6, which is mounted on volute of blower 9, and motor 7 is exposed at 9 antetheca of volute of blower.
When motor 7 rotates, driving shaft 3 is driven to rotate, driving gear is rotated synchronously with driving shaft 3, due to planetary gear and corresponding master
Moving gear is meshed, and the internal gear 24 on every rotation column is meshed with corresponding planetary gear again, therefore, with driving gear
Rotation, planetary gear rotate synchronously, and then the first rotation column 21, second rotation column 22 and third rotation column 23 is driven to rotate synchronously.Every
The direction of rotation for revolving column as shown by arrow a, using Magnus effect, generates gas circulating in the lip of the tongue of volute tongue, that is, is revolving
The surface of column forms circulation layer (also referred to as boundary-layer), and the airflow direction of the circulation layer also as shown by arrow a, and comes from impeller 10
Airflow direction be divided into two-way, wherein flow to training wall 14 all the way, flow direction as shown by the arrowb, another way flow direction reflux wall 15, stream
To as shown by arrow A, due to the presence of circulation layer, the fraction collided with volute tongue the lip of the tongue made to be deflected towards air outlet, reduced
Reflux gas, i.e., flow direction reflux wall 15 air-flow reduce, and flow to training wall 14 air-flow increase, and then promoted fan delivery with
Wind pressure.
For the centrifugal blower of double air inlets, usually, wind turbine goes out wind velocity, from the shroud of impeller 10 to middle part by
Gradual change is big, then is tapered into hub disk by middle part.That is, air-flow to the shock of volute tongue be also by volute tongue shroud to middle part by
Gradual change is big, then by middle part to the gradually smaller process of hub disk, so the impact of middle part air-flow and volute tongue is larger, kinetic energy rejection is bright
Aobvious, noise is larger.The present embodiment makes the first rotation column 21, second revolve by using different transmission ratios to each gear set as a result,
Column 22 and third rotation column 23 have different rotating speeds.Specifically, it is located at the velocity of rotation of the second rotation column 22 at volute tongue mid-game most
Soon, so that volute tongue mid-game nearby deflects, air-flow is apparent, is located at the first rotation column 21 of the forward and backward disk of volute tongue, third revolves column 23
Velocity of rotation is slower so that the forward and backward disk of volute tongue nearby deflects air-flow unobvious, and then can before and after volute tongue not same district
Domain generates the Ring fluid layer of friction speed, more stable to obtain to adapt to the variation of impeller outlet speed from front to back
Compressor flow and wind pressure, while being also beneficial to reduce fan noise.Furthermore it is also possible to according to the size of wind turbine wind speed, to adjust
First rotation column 21, second revolves the rotating speed of column 22 and third rotation column 23, and effect is promoted to obtain best air quantity and wind pressure.
In addition, for the centrifugal blower singly entered the wind, third rotation column 23 can also be cancelled, i.e., only install the on volute tongue ontology 1
One rotation column 21 and second revolves column 22.
Claims (9)
1. a kind of wind turbine volute tongue, including volute tongue ontology (1), it is characterised in that：It is equipped in the lip of the tongue of the volute tongue ontology (1)
Correspond to volute tongue to the first rotation column (21) of distribution and the second rotation column (22), the first rotation column (21) along before and after volute tongue ontology
Preceding disk area, it is described second rotation column (22) correspond to volute tongue central disc area, it is described first rotation column (21) and second revolves column
(22) it can rotate synchronously and the velocity of rotation of the second rotation column (22) is more than the first velocity of rotation for revolving column (21).
2. wind turbine volute tongue according to claim 1, it is characterised in that：The lip of the tongue of the volute tongue ontology (1) be provided with along
The front and back mounting groove (11) to distribution of volute tongue ontology, the first rotation column (21) and the second rotation column (22) are embedded in the installation
In slot (11).
3. wind turbine volute tongue according to claim 2, it is characterised in that：It is equipped in the mounting groove (11) front and back to distribution
Driving shaft (3) and planet carrier (4), the first driving gear (51) and the second driving gear are installed on the driving shaft (3)
(52), the first planetary gear (61) and the second planetary gear (62), first planetary gear are installed on the planet carrier (4)
(61) it being meshed with the first driving gear (51), second planetary gear (62) is meshed with the second driving gear (52),
It is equipped with internal gear (24), first planetary gear (61) on the internal perisporium of the first rotation column (21) and the second rotation column (22)
It is meshed with corresponding internal gear (24) with the second planetary gear (62), antetheca (12) or rear wall in the mounting groove (11)
(13) motor (7) for driving the driving shaft (3) to rotate is installed on.
4. wind turbine volute tongue according to claim 3, it is characterised in that：The first rotation column (21) and the second rotation column (22) are
The identical cylinder of diameter, accordingly, the mounting groove (11) have the arc-shaped concave to match with the periphery.
5. wind turbine volute tongue according to claim 4, it is characterised in that：The first rotation column (21) and the second rotation column (22) are logical
Bearing (8) is crossed to be connected.
6. wind turbine volute tongue according to claim 1, it is characterised in that：The upper wall surface of the volute tongue ontology (1) is training wall
(14), the lower wall surface of volute tongue ontology (1) is reflux wall (15), and the first rotation column (21) and the second rotation column (22) are engaged on water conservancy diversion
Between wall (14) and reflux wall (15).
7. wind turbine volute tongue according to claim 6, it is characterised in that：The first rotation column (21) and second revolves column (22)
The smooth surface transition on surface and training wall (14), reflux wall (15).
8. the wind turbine volute tongue according to any claim in claim 1 to 7, it is characterised in that：In the volute tongue ontology
(1) the lip of the tongue is also equipped with the third rotation column (23) rotated synchronously with the second rotation column (22), the third rotation column (23)
Corresponding to the rear disk area of volute tongue, and the rotary speed of third rotation column (23) is less than the rotary speed of the second rotation column (22).
9. wind turbine volute tongue according to claim 8, it is characterised in that：It is described first rotation column (21), second rotation column (22) and
Third rotation column (23) is the identical cylinder of diameter and passes sequentially through bearing (8) and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820131097.3U CN207906153U (en) | 2018-01-25 | 2018-01-25 | A kind of wind turbine volute tongue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820131097.3U CN207906153U (en) | 2018-01-25 | 2018-01-25 | A kind of wind turbine volute tongue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207906153U true CN207906153U (en) | 2018-09-25 |
Family
ID=63564947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820131097.3U Active CN207906153U (en) | 2018-01-25 | 2018-01-25 | A kind of wind turbine volute tongue |
Country Status (1)
| Country | Link |
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| CN (1) | CN207906153U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236742A (en) * | 2018-09-27 | 2019-01-18 | 佛山市顺德区美的洗涤电器制造有限公司 | Volute tongue, blower and kitchen ventilator |
| CN110081021A (en) * | 2018-01-25 | 2019-08-02 | 宁波方太厨具有限公司 | A kind of blower volute tongue |
-
2018
- 2018-01-25 CN CN201820131097.3U patent/CN207906153U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081021A (en) * | 2018-01-25 | 2019-08-02 | 宁波方太厨具有限公司 | A kind of blower volute tongue |
| CN110081021B (en) * | 2018-01-25 | 2024-01-23 | 宁波方太厨具有限公司 | Fan volute tongue |
| CN109236742A (en) * | 2018-09-27 | 2019-01-18 | 佛山市顺德区美的洗涤电器制造有限公司 | Volute tongue, blower and kitchen ventilator |
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