CN209294142U - A kind of centrifugal blower of band independence volute tongue - Google Patents
A kind of centrifugal blower of band independence volute tongue Download PDFInfo
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- CN209294142U CN209294142U CN201821673793.3U CN201821673793U CN209294142U CN 209294142 U CN209294142 U CN 209294142U CN 201821673793 U CN201821673793 U CN 201821673793U CN 209294142 U CN209294142 U CN 209294142U
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- volute tongue
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Abstract
The utility model relates to blower manufacture fields, especially a kind of centrifugal blower of band independence volute tongue, including spiral case, air inlet and outlet, impeller and motor, the spiral case includes snail plate, side plate, it further include an independent volute tongue, the volute tongue is equipped with the arcwall face to match with the extension line of the snail plate helix, the arcwall face two sides of the volute tongue are additionally provided with two pieces of mounting plates, the mounting plate is equipped with mounting hole, the volute tongue is fixed on the side plate by bolt and nut, the nut-welding is in the inside of the mounting hole；The rotation axis being arranged in the volute tongue passes through the axis hole and the volute tongue is fixed on the side plate, the volute tongue be it is hollow, inside is equipped with handle.A kind of centrifugal blower of band independence volute tongue of the utility model, which has the advantage that, is fixed with nut on (1) volute tongue mounting plate, volute tongue is fixed on the rotating shaft, and when disassembly does not need to remove and install；(2) the drive volute tongue that the handle being arranged in volute tongue can be convenient is rotated.
Description
Technical field
The utility model relates to blower manufacture field, especially a kind of centrifugal blower of band independence volute tongue.
Background technique
The effects of centrifugal blower is commonly used in industrial and mining enterprises, heavy construction, tunnel etc., plays air draft, dedusting, cooling,
The volute tongue being arranged in spiral case play the role of stopping to carry out in spiral case from the air-flow that air inlet enters it is interior recycle, therefore volute tongue
Position is typically provided to as close as possible to impeller position, and in this case, most of the air-flow sucked from air inlet is arranged by air outlet
Out, volute tongue position throughput very little thus be easy to cause dust, greasy dirt, sundries etc. in the accumulation at volute tongue position, and volute tongue with
The distance between impeller is again very narrow, be easy to cause air duct to block, influences the use of blower.Because the impeller of blower is exposed to wind for a long time
In road, and the spiral case of centrifugal blower is a closing shell, when blower be in gas-liquid mixed air duct or for weaving, the bands such as metallurgy
When having solids or the more air duct of dust, impeller is also easy to be corroded or adhere to solids, thus needs to impeller
Regular maintenance is carried out with spiral case.
It requires first to remove air outlet conduit under normal conditions, can see be cleared up, or be needed further entire
The spiral case of blower is dismantled, and the side plate of snail plate two sides or air outlet are removed, and takes out impeller, carries out thorough cleaning；But impeller takes
Damage is be easy to cause when being put into out, maintenance difficulty is big, time-consuming and laborious；Or using such as Chinese utility model patent: a kind of centrifugation
Structure shown in blower (notification number CN203321891 U), offers access hole on coaming plate (i.e. snail plate), but this structure
It is only capable of carrying out cleaning and maintenance to impeller, to can not clear up at the especially relatively narrower of spiral case inside；It can also be as special such as Chinese utility model
Benefit: a kind of quick detachable centrifugal blower (notification number CN203641117U) is shown, and manhole, but its are offered on the side plate of spiral case
It needs integrally to take out motor and impeller when cleaning, and impeller will carry out circular motion along hinge axis, small sized product is fine, impeller
Requirement when larger to maintenance door and manhole is all very high, is difficult to realize.A kind of Chinese utility model patent: detachable blower
Volute tongue and spiral case (notification number CN 204805166U) disclose a kind of spiral case with detachable volute tongue, but it is mainly
Solve the problems, such as that volute tongue setting angle is nonadjustable, mounting and adjusting substantially will not dismantle volute tongue after completing, and tear open
It fills relatively complicated.
Therefore, it is badly in need of developing a kind of centrifugal blower of band independence volute tongue to solve the above problems.
Utility model content
The purpose of this utility model is that a kind of centrifugal blower of band independence volute tongue, can be realized and do not dismantling volute of blower
Maintenance is carried out to impeller and spiral case in the case where side plate or air inlet.
To achieve the purpose that above-mentioned utility model, a kind of centrifugal blower of band independence volute tongue, including spiral case, air inlet are provided
Mouth, air outlet, impeller and motor, the spiral case include snail plate, two blocks of side plates, further include an independent volute tongue, the volute tongue is equipped with
The arcwall face to match with the extension line of the snail plate helix, between the length of the arcwall face and two blocks of side plates away from
From identical, the arcwall face is starting point close to one end of snail plate, along the arcwall face close to one end vertical direction of air outlet
It is provided with outwardly extending flat face, the flat face end is additionally provided with air outlet mounting flange face, length and the arc
The length in face is identical, and the side plate top and snail plate free end also are provided with flange face, constitutes with air outlet mounting flange face
The air outlet flange face of spiral case itself；
The arcwall face two sides of the volute tongue are additionally provided with two pieces of mounting plates for being parallel to each other and being connected with the flat face, institute
Mounting plate is stated equipped with mounting hole, the side plate of the spiral case is equipped with corresponding mounting hole, by bolt and nut by the volute tongue
It is fixed on the side plate, the nut-welding is in the inside of the mounting hole；The flat face and the mounting plate junction
It is additionally provided with axis hole, rotation axis passes through the axis hole and the volute tongue is fixed on the side plate, and the volute tongue can be along the rotation
Axis rotation, the volute tongue be it is hollow, be internally provided with handle；The starting point of the arcwall face is folded up to form sealing surface,
The sealing surface is closely connect with the snail plate, and junction uses adhesive seal；It is risen to arcwall face in the center of circle of the axis hole
The distance at beginning no more than the axis hole the center of circle to the impeller outer diameter distance；
The mounting plate is irregular quadrilateral, stretches to the one of snail plate direction along air outlet mounting flange face is straight
The endpoint on side is located to pass through the intersection point of the starting point horizontal line of arcwall face with the vertical line in the center of circle for passing through the rotation axis
For the center of circle, the starting point in the center of circle to arcwall face is within the disc of radius；The mounting hole being arranged on the mounting plate includes at least
The identical hole of two sizes, and at least there are two the circle center distance of the center of circle to the rotation axis in the identical hole of size is equal.
Preferably, described adhesive is glue or silica gel.
Preferably, the top of the mounting plate is arranged in close to sealing surface side in the handle.
Preferably, axle sleeve is fixedly installed in described two axis holes, the rotation axis is arranged in the axle sleeve.
Preferably, at least one manhole is arranged in the side plate at air outlet, and the manhole is equipped with access cover.
Further, the access cover is fixed on the side plate by bolt and nut.
Further, it is connected on the side plate below the access cover by hinging manner, other positions pass through bolt
Nut is fixed on the side plate.
A kind of centrifugal blower of band independence volute tongue of the utility model when in use, if air duct occur blocking need clear up or
Impeller needs to clear up, and the fixing bolt that need to only pass through outer panel unclamps, and enforces handle, destroys it and connect with snail plate end
The adhesive at place separates it with snail plate, then volute tongue is pushed to move in a circle downwards along rotation axis, above volute tongue mounting plate
Mounting hole when being aligned with the mounting hole below side plate, be fixed using bolt.At this point, foring one between volute tongue and snail plate
A working space can be used tool and maintain spiral case stenosis, can also directly be cleaned to impeller by this space
Maintenance.Meanwhile the arcwall face of volute tongue can rotate to the position towards air outlet, the manhole pair that can be opened up from air outlet
Volute tongue carries out cleaning maintenance.After maintenance cleaning, fastening screw is unclamped, pull-up handle makes its playback, by volute tongue mounting plate two
The bolt of side is tightened, and is resealed volute tongue and snail plate end junction with adhesive.
A kind of centrifugal blower of band independence volute tongue of the utility model has the advantage that
(1) it is fixed with nut on volute tongue mounting plate, bolt need to be only screwed on and is backed out, maintenance is convenient, is not required to disassembly side
Plate and impeller not will cause additional impeller damage；
(2) volute tongue is fixed on the rotating shaft, and when disassembly does not need to remove and install, and improves the convenience used；
(3) the drive volute tongue that the handle being arranged in volute tongue can be convenient is rotated；
(4) maintenance disposably can be carried out to spiral case and impeller.
Detailed description of the invention
Fig. 1 is a kind of centrifugal fan structure schematic diagram of band independence volute tongue of the utility model；
Fig. 2 is a kind of spiral case top partial view diagram of the centrifugal blower of band independence volute tongue of the utility model；
Fig. 3 be a kind of spiral case of the centrifugal blower of band independence volute tongue of the utility model along A-A to sectional front view；
Fig. 4 is a kind of centrifugal blower volute tongue structural schematic diagram with activity volute tongue of the utility model；
Fig. 5 is that a kind of volute tongue position of centrifugal blower another preferred embodiment with activity volute tongue of the utility model is amplified
Figure.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figs 1-4, a kind of centrifugal blower of band independence volute tongue of the utility model, including spiral case, air inlet 2, outlet air
Mouth, motor 3 and impeller 4, the spiral case include 1, two block of side plate 11 of snail plate, further include an independent volute tongue 5, the volute tongue 5 is equipped with
The arcwall face 51 to match with the extension line of the snail plate helix, between the length of the arcwall face 51 and two blocks of side plates 11
Apart from identical, the arcwall face 51 is starting point close to one end of snail plate 1, is hung down along the arcwall face 51 close to one end of air outlet
Histogram is additionally provided with air outlet mounting flange face 55 to outwardly extending flat face 52,52 end of flat face is provided with, length
It spends identical as the length of the arcwall face 51；11 top of side plate and the free end 13 of snail plate 1 also are provided with flange face, and described
The air outlet flange face of the composition spiral case itself of air outlet mounting flange face 55, it can be ensured that good seal when air outlet is installed；Institute
51 two sides of arcwall face for stating volute tongue 5 are additionally provided with two pieces of mounting plates 53 for being parallel to each other and being connected with flat face 52, the installation
Plate 53 is in close contact with the side plate 11 during installation；The mounting plate 53 is equipped with mounting hole 5 31, the side plate of the spiral case
It also is provided with mounting hole on 11, the volute tongue 5 is fixed on the side plate 11 by bolt and nut, for the side installed and used
Just, the nut 56 can be welded on the inside of the mounting hole 531, need to only tighten or Panasonic's bolt when installing or removing in this way
?；The flat face 52 and 53 junction of the mounting plate are additionally provided with axis hole 57, and rotation axis 58 passes through the axis hole 57 for institute
Volute tongue 5 is stated to be fixed on the side plate 11, the volute tongue 5 can be rotated along the rotation axis 58, the volute tongue 5 be it is hollow,
Inside is equipped with handle 54, facilitates and pushes down the volute tongue 5 or pull-up.
The starting point of arcwall face 51 slightly upwardly turns up to form sealing surface 59, and the sealing surface 59 closely connects with the snail plate 1
It connects, junction guarantees the air-tightness of blower using the sealing such as adhesive such as silica gel or glue；The center of circle of the axis hole 57 is to arc
The distance of the starting point in face 51 no more than the axis hole 57 the center of circle to the impeller 4 outer diameter distance, just can guarantee in this way
Volute tongue 5 will not be hindered when rotating；For the purposes of guaranteeing the rotation of volute tongue, the mounting plate 53 is irregular quadrilateral,
It is located at along the endpoint of a line in the straight direction for stretching to snail plate 1 in air outlet mounting flange face 55 to pass through arcwall face 51
The intersection point of starting point horizontal line and the vertical line in the center of circle for passing through the rotation axis 58 is the center of circle, starting of the center of circle to arcwall face 51
End is within the disc of radius.
After bolt in volute tongue 5 removes, it is in free movement state along rotation axis 58, is easy to interfere to spiral case inside in this way
Other operations are carried out, therefore, the mounting hole 531 being arranged on mounting plate 53 is the identical hole of two sizes, and the two mounting holes
The center of circle to rotation axis 58 circle center distance it is equal, when volute tongue 5 is pushed down, can with bolt by the mounting hole of the top of volute tongue 5 with
The mounting hole of 11 lower section of side plate is corresponding to be fixed.
In other cases, as shown in figure 5, the handle 54 is preferably disposed on the top of the mounting plate 53 close to close
59 side of cover, facilitates operation；Axle sleeve can also be fixedly installed in described two axis holes 57, the rotation axis 58 is in axle sleeve
Rotation reduces the phase mutual friction between axis hole 57 and rotation axis 58.
The mounting hole 531 may be set to be it is multiple, but at least there are two hole size is identical and the circle in the two holes
The circle center distance of the heart to rotation axis 58 is equal.
One or several manholes can be set at air outlet on the spiral case with the side plate, on the manhole
Equipped with access cover 12, the access cover 12 can be all bolted on the side plate, can also lower section pass through hinge
Mode is connected on the side plate, other positions are bolted on the side plate.
When blower needs to overhaul, because volute tongue position is the most narrow place of spiral case, sundries is easily accumulated herein and is not easy to be discharged, will
After volute tongue Panasonic, the sundries of tool or manual cleaning spiral case accumulation herein can use, while clearing up the sundries etc. on impeller 4；
The maintenance at the wider place of spiral case can directly open access cover and carry out sundries cleaning, maintenance etc. by manhole.
The preferred embodiment created to the utility model above is illustrated, but the utility model is created not
It is only limitted to the embodiment, those skilled in the art go back under the premise of without prejudice to the utility model creative spirit
Various equivalent variation or replacement can be made, these equivalent modifications or replacement are all contained in the claim of this application and are limited
In the range of.
Claims (7)
1. a kind of centrifugal blower of band independence volute tongue, including spiral case, air inlet and outlet, impeller and motor, which is characterized in that
The spiral case includes snail plate, two blocks of side plates, further includes an independent volute tongue, and the volute tongue is equipped with the extension with the snail plate helix
The arcwall face that line matches, the length of the arcwall face is identical as the distance between two blocks of side plates, and the arcwall face is close
One end of snail plate is starting point, is provided with along the arcwall face close to one end vertical direction of air outlet outwardly extending straight
Face, the flat face end are additionally provided with air outlet mounting flange face, and length is identical as the length of the arcwall face, the side plate
Top and snail plate free end also are provided with flange face, and the air outlet flange of spiral case itself is constituted with air outlet mounting flange face
Face；
The arcwall face two sides of the volute tongue are additionally provided with two pieces of mounting plates for being parallel to each other and being connected with the flat face, the peace
Loading board is equipped with mounting hole, and the side plate of the spiral case is equipped with corresponding mounting hole, is fixed the volute tongue by bolt and nut
On the side plate, the nut-welding is in the inside of the mounting hole；The flat face and the mounting plate junction are also set
There is axis hole, rotation axis passes through the axis hole and the volute tongue is fixed on the side plate, and the volute tongue can turn along the rotation axis
It is dynamic, the volute tongue be it is hollow, be internally provided with handle；The starting point of the arcwall face is folded up to form sealing surface, described
Sealing surface is closely connect with the snail plate, and junction uses adhesive seal；The center of circle of the axis hole to the starting point of arcwall face
Distance no more than the axis hole the center of circle to the impeller outer diameter distance；
The mounting plate is irregular quadrilateral, along the straight a line for stretching to snail plate direction in air outlet mounting flange face
Endpoint be located at pass through arcwall face starting point horizontal line with pass through the rotation axis the center of circle vertical line intersection point be circle
The heart, the starting point in the center of circle to arcwall face are within the disc of radius；The mounting hole being arranged on the mounting plate includes at least two
The identical hole of size, and at least there are two the circle center distance of the center of circle to the rotation axis in the identical hole of size is equal.
2. a kind of centrifugal blower of band independence volute tongue as described in claim 1, which is characterized in that described adhesive be glue or
Silica gel.
3. a kind of centrifugal blower of band independence volute tongue as described in claim 1, which is characterized in that the handle is arranged described
The top of mounting plate is close to sealing surface side.
4. a kind of centrifugal blower of band independence volute tongue as described in claim 1, which is characterized in that fixed in described two axis holes
It is provided with axle sleeve, the rotation axis is arranged in the axle sleeve.
5. a kind of centrifugal blower of band independence volute tongue as described in claim 1, which is characterized in that the side plate is close to air outlet
At least one manhole is arranged in place, and the manhole is equipped with access cover.
6. a kind of centrifugal blower of band independence volute tongue as claimed in claim 5, which is characterized in that the access cover passes through bolt
Nut is fixed on the side plate.
7. a kind of centrifugal blower of band independence volute tongue as claimed in claim 5, which is characterized in that pass through below the access cover
Hinging manner is connected on the side plate, other positions are fixed on the side plate by bolt and nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821673793.3U CN209294142U (en) | 2018-10-16 | 2018-10-16 | A kind of centrifugal blower of band independence volute tongue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821673793.3U CN209294142U (en) | 2018-10-16 | 2018-10-16 | A kind of centrifugal blower of band independence volute tongue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209294142U true CN209294142U (en) | 2019-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821673793.3U Active CN209294142U (en) | 2018-10-16 | 2018-10-16 | A kind of centrifugal blower of band independence volute tongue |
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| CN (1) | CN209294142U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682348A (en) * | 2020-12-18 | 2021-04-20 | 山东省章丘鼓风机股份有限公司 | Expansion ring, main shaft sealing structure and fan |
-
2018
- 2018-10-16 CN CN201821673793.3U patent/CN209294142U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682348A (en) * | 2020-12-18 | 2021-04-20 | 山东省章丘鼓风机股份有限公司 | Expansion ring, main shaft sealing structure and fan |
| CN112682348B (en) * | 2020-12-18 | 2022-08-16 | 山东省章丘鼓风机股份有限公司 | Expansion ring, main shaft sealing structure and fan |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: No.40 Xinhua Road, Xinqiao Town, Jiangyin City, Wuxi City, Jiangsu Province Patentee after: Jiangsu Jingya fan Co.,Ltd. Address before: 214426 Xinhua Road Industrial Zone, Xinqiao Town, Jiangyin, Wuxi, Jiangsu 40 Patentee before: JIANGYIN JINGYA FAN Co.,Ltd. |