CN206860526U - A kind of centrifugal blower - Google Patents
A kind of centrifugal blower Download PDFInfo
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- CN206860526U CN206860526U CN201720429231.3U CN201720429231U CN206860526U CN 206860526 U CN206860526 U CN 206860526U CN 201720429231 U CN201720429231 U CN 201720429231U CN 206860526 U CN206860526 U CN 206860526U
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- rotor
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- housing
- centrifugal blower
- shroud
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Abstract
The utility model discloses a kind of centrifugal blower, including housing, the rotor being embedded in housing, for the rotating shaft for driving rotor to rotate, blast pipe for air intake and the discharge pipe for air-out, the blast pipe and discharge pipe are fixed on housing, the rotor includes front shroud, back shroud and blade, the blade is between front shroud and back shroud, the blade sets in circular arc and is circumferentially with several along rotor, the splitter for shunting is provided between blade described in two panels, the first sealing ring is provided between the blast pipe and rotor, the rotor sets to form inclined-plane with respect to blast pipe one end in necking, the first sealing ring inwall is installed with annular protrusion along its circumference, the annular protrusion is provided with several and pushed against in inclined-plane vertically.The air-flow of orientation, airflow passes splitter are formed after wind passes through blade, splitter compresses to airflow diversion, strengthens the pressurized effect of air blower.
Description
Technical field
It the utility model is related to air blower, and in particular to a kind of centrifugal blower.
Background technology
Centrifugal blower is widely used in sewage disposal, steelmaking furnace, coal washery, flotation, chemical industry gas making, vacuum etc.
Field, it also can be used for conveying other special gas.
Such as the utility model that notification number is CN205823723U, the utility model discloses a kind of centrifugal blower impeller,
The impeller includes backboard, cover plate and the high-order SPL shape blade to be radially distributed among it around impeller central,
Wherein, inlet blade angle is 60 degree, and the angle of outlet is 10 degree, and blade exit point drift angle is 24 degree.
Inlet blade angle refers to the angle of entrance location tangent line and RADIAL, outlet blade angle refer to outlet port tangent line with
The angle of RADIAL, blade exit point drift angle refer to ingress-egress point respectively with the angle after axial connecting line.The air-flow of rotation is high
Rank SPL shape blade cuts shunt, and realize the effect of high pressure-charging, improve air quantity caused by air blower.
In the above-mentioned technical solutions, although realizing the effect of high pressure-charging, because pressure becomes big, the stream of caused wind
Speed becomes big so that air blower is integrally more easy to gas leakage, and the air-tightness of whole air blower is deteriorated.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of centrifugal blower, have compared with
Good air-tightness, makes air-flow caused by air blower more steady, flow-disturbing is few, and noise is small.
To achieve the above object, the utility model provides following technical scheme：
A kind of centrifugal blower, including housing, the rotor being embedded in housing, the rotating shaft for driving rotor rotation, use
Blast pipe in air intake and the discharge pipe for air-out, the blast pipe and discharge pipe are fixed on housing, and the rotor includes
Front shroud, back shroud and blade, the blade is between front shroud and back shroud, and the blade is set in circular arc and edge turns
Son is circumferentially with several, and the splitter for shunting is provided between blade described in two panels, is set between the blast pipe and rotor
Have the first sealing ring, the rotor sets to form inclined-plane with respect to blast pipe one end in necking, the first sealing ring inwall along its
Annular protrusion is circumferentially installed with, the annular protrusion is provided with several and pushed against in inclined-plane vertically.
By using above-mentioned technical proposal, the air-flow of orientation is formed after wind passes through blade, airflow passes splitter, is divided
Flow is compressed to airflow diversion, strengthens the pressurized effect of air blower.And the air motion after being pressurized is to rotor and blast pipe
Junction when, by the first sealing ring stop.If air-flow is waited from leakage between first annular protrusion and rotor bearing surface, by
Piece compression is split in air-flow, therefore air-flow also has the larger speed moved along rotor axial, air-flow continues along rotor axial
Outwards, then changed course can be stopped by the side wall of next annular protrusion, weaken wind-force, make wind be difficult from next annular protrusion and
Revealed between rotor bearing surface, so as to improve the air-tightness of the air blower.After the air-tightness of air blower improves, shape is rotated by rotor
Into air-flow it is more smooth, flow-disturbing is less, makes wind-force bigger, noise is smaller.
It is of the present utility model to be further arranged to：The splitter includes the first burst and the second burst, described first point
Piece and the second burst are disposed alternately between two pieces of adjacent blades successively, and the first burst and the second burst are respectively positioned on the blade back of the body
To rotor center one end, the length of first burst is the 2/5 ~ 3/5 of length of blade, and the length of second burst is blade
The 2/3 ~ 3/4 of length.
By using above-mentioned technical proposal, the second burst is more than compression of first burst to air-flow to the decrement of air-flow
Amount, so that being divided into two beams by blade and splitter air-flow, air blast wraps up weak air-flow, air-flow is more likely formed ring
Shape, make more to concentrate from the air-flow of discharge pipe air-out, wind-force is bigger.
It is of the present utility model to be further arranged to：Described splitter relative rotor center one end sets to form wind-guiding in circular arc
Face.
By using above-mentioned technical proposal, when bearing the pressure of wind, wind is in the presence of wind-guiding face, to the pressure of splitter
Power is assigned to blade everywhere, reduces splitter due to the breakage that fractureed by excessive stress.
It is of the present utility model to be further arranged to：Rotating bolt, the rotating bolt are threaded with the front shroud
It is threadedly connected to splitter relative rotor center one end and back shroud.
By using above-mentioned technical proposal, splitter and adjacent thereto two points can be adjusted by rotating rotating bolt
The distance between flow, airflow direction and decrement caused by change.Splitter is adjusted according to the actual requirements, it is ensured that air blower
Air output.
It is of the present utility model to be further arranged to：The front shroud and back shroud direction are set back to blade side in depression
Put.
By using above-mentioned technical proposal, front shroud and back shroud form an olive-type, make front shroud and back shroud it
Between air-flow reserves it is big so that blade rotate caused by throughput it is big, it is ensured that air blower have abundance air output.
It is of the present utility model to be further arranged to：The front shroud back to back shroud one end outer wall and the back shroud back to
Front shroud one end outer wall circumferentially offers caulking groove along it, the inner walls be installed with along its circumference be embedded at it is embedding in caulking groove
Ring, the capel is connected to caulking groove, and the front shroud and back shroud are rotationally connected with capel.
By using above-mentioned technical proposal, so as to increase the contact area of front shroud and back shroud with respect to housing, reduce
Air-flow reveals back the probability of housing from gap between front shroud, back shroud and housing, makes the wind as much as possible can be from discharge pipe
Leave housing, it is ensured that air blower has the air output of abundance.
It is of the present utility model to be further arranged to：The shell one end offers mounting groove, and the blast pipe is with respect to housing
One end sets the erecting bed to be formed and be adapted with front shroud in enlarging, and the erecting bed outer wall is axially facing back to rotor one along it
Side is installed with mounting ring, and the mounting ring is embedded in mounting groove and pushed against in mounting groove inwall.
By using above-mentioned technical proposal, the contact area of erecting bed and the first sealing ring is increased, so as to improve gas
Close property.When wind is leaked to abutting first plane of groove simultaneously, it can be altered course by the stop of the first sealing ring side wall, reduce air-flow
The possibility of leakage.
It is of the present utility model to be further arranged to：It is threaded with the mounting ring for being fixedly connected with mounting ring and shell
The installation bolt of body.
By using above-mentioned technical proposal, tightening installation bolt can make mounting ring is even closer to be connected on housing, side
Enter the installation being in charge of with housing.And screwing with installation bolt, installation annular strain can be driven to push against mounting groove, improve gas
Close property.
It is of the present utility model to be further arranged to：It is provided with the second sealing ring between the housing and back shroud, described second
Sealing ring inwall is installed with sealing broach along its circumference, and the sealing broach is installed with several along its axial direction, the sealing comb
The width of tooth becomes larger from close to rotor one end to away from rotor one end, and the sealing broach pushes against rotor outer wall.
By using above-mentioned technical proposal, the width for sealing broach gradually becomes from close to rotor one end to away from rotor one end
Greatly, become larger it is achieved thereby that pushing against power between sealing broach and rotor, increase resistance of the sealing broach to air-flow, so as to
Improve air-tightness.
It is of the present utility model to be further arranged to：Second sealing ring is installed with back to shell one end outer wall along its circumference
Bulge loop, the bulge loop outer wall are pushed against in housing.
By using above-mentioned technical proposal, bulge loop increases the contact area of housing and the second sealing ring, so as to improve
Air-tightness.Wind can be altered course by the stop of bulge loop side wall from when being revealed between the second sealing ring and housing, reduce air-flow simultaneously
The possibility of leakage.
The utility model has advantages below：Air-tightness is preferable, has larger air output, and noise is smaller.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment；
Fig. 2 is the structural representation of blade and splitter in embodiment；
Fig. 3 is the enlarged drawing at B in Fig. 2；
Fig. 4 is the enlarged drawing at A in Fig. 1；
Fig. 5 is the enlarged drawing at C in Fig. 1；
Fig. 6 is the enlarged drawing at D in Fig. 1；
Fig. 7 is the enlarged drawing at E in Fig. 1.
Reference：1st, housing；2nd, rotor；3rd, rotating shaft；4th, blast pipe；5th, discharge pipe；6th, front shroud；7th, back shroud；8、
Blade；9th, splitter；10th, the first burst；11st, the second burst；12nd, wind-guiding face；13rd, rotating bolt；14th, caulking groove；15th, capel；
16th, the second sealing ring；17th, bulge loop；18th, broach is sealed；19th, mounting groove；20th, erecting bed；21st, mounting ring；22nd, installation bolt；
23rd, groove is abutted；24th, the first sealing ring；25th, annular protrusion；26th, inclined-plane；27th, ladder unit.
Embodiment
The utility model is described further referring to the drawings.
As shown in figure 1, a kind of centrifugal blower, including housing 1, be embedded in housing 1 rotor 2, for driving rotor 2
The rotating shaft 3 of rotation, the blast pipe 4 for air intake and the discharge pipe 5 for air-out.
As shown in figure 1, rotating shaft 3 is coaxially fixedly arranged on rotor 2.Rotor 2 includes front shroud 6, back shroud 7 and blade 8.Blade 8
Between front shroud 6 and back shroud 7, and blade 8 is fixedly connected on front shroud 6 and back shroud 7.As shown in Fig. 2 blade 8 is in
Circular arc is set and is circumferentially with several along rotor 2, and the splitter 9 for shunting is provided between two panels blade 8.
As shown in Fig. 2 splitter 9 includes the first burst 10 and the second burst 11, the first burst 10 and the second burst 11 according to
It is secondary to be disposed alternately between two pieces of adjacent blades 8, and the first burst 10 and the second burst 11 are respectively positioned on blade 8 back to rotor 2
Center one end.The length of first burst 10 is the 2/5 ~ 3/5 of the length of blade 8, and the length of the second burst 11 is the 2/ of the length of blade 8
3~3/4。
As shown in Figure 3 and Figure 4, the center one end of 9 relative rotor of splitter 2 is set in circular arc, forms wind-guiding face 12.Protecgulum
Rotating bolt 13 is threaded with plate 6, rotating bolt 13 is threadedly connected to the center one end of 9 relative rotor of splitter 2 and bonnet
Plate 7.The angle of splitter 9 is can adjust by rotating rotating bolt 13, so as to adjust out airspeed.
As shown in figure 1, front shroud 6 and back shroud 7 are set towards back to the side of blade 8 in depression, so as to the He of front shroud 6
Back shroud 7 forms olive-shaped cavity.As shown in figure 5, front shroud 6 is back to one end outer wall of back shroud 7 and back shroud 7 back to preceding
One end outer wall of cover plate 6 circumferentially offers caulking groove 14 along it, and the inwall of housing 1 is installed with capel 15 along its circumference.Capel 15 is embedded
In in caulking groove 14, and capel 15 is connected to caulking groove 14.Front shroud 6 and back shroud 7 are rotationally connected with capel 15.
As shown in fig. 6, housing 1 and back shroud 7, back to the second sealing ring 16 is provided between the one end of front shroud 6, second seals
Circle 16 is installed with bulge loop 17 back to one end outer wall of housing 1 along its circumference, and the outer wall of bulge loop 17 is fixedly connected on the inwall of housing 1.Second
The inwall of sealing ring 16 is installed with sealing broach 18 along its circumference, and sealing broach 18 is installed with several along its axial direction, seals broach
18 width is become larger from close to the one end of rotor 2 to away from the one end of rotor 2, and sealing broach 18 is pushed against in the outer wall of back shroud 7.
As shown in Figure 1 and Figure 5, housing 1 offers mounting groove 19 close to the one end of front shroud 6, and blast pipe 4 is with respect to housing 1 one
End sets to form erecting bed 20 in enlarging.The outer wall of erecting bed 20 is installed with mounting ring 21 along its axial direction, mounting ring 21 towards back to
The side of rotor 2.Mounting ring 21 is embedded in mounting groove 19 and pushed against in the inwall of mounting groove 19.Peace is threaded with mounting ring 21
Bolt 22 is filled, installation bolt 22 is threadedly connected to housing 1, so as to be fixedly connected with blast pipe 4 and housing 1.The spiral shell of installation bolt 22
Line end is inclined to set towards rotor 2.
As shown in fig. 7, the side inwall of 20 relative rotor of erecting bed 2, which offers, abuts groove 23, abutting groove 23 section is in
Step type is set.Abut and the first sealing ring 24 is embedded with groove 23, the outer wall of the first sealing ring 24 is pushed against in abutting groove 23.
As shown in fig. 7, the inwall of the first sealing ring 24 is installed with annular protrusion 25 along its circumference.The section of annular protrusion 25 is in three
It is angular, and the outer wall of annular protrusion 25 and the outer wall of the first sealing ring 24 are in arc transition.Annular protrusion 25 is in towards the side of blast pipe 4
It is obliquely installed.Annular protrusion 25 is provided with several vertically.Front shroud 6 sets to form inclined-plane with respect to the one end of blast pipe 4 in necking
26, the ladder unit 27 that inclined-plane 26 is stepped by several is formed, the corresponding ladder unit 27 of each annular protrusion 25, ring
Shape projection 25 is pushed against in the outer wall of ladder unit 27.
As shown in figure 1, discharge pipe 5 it is tangent in housing 1 and with housing 1 to connecting.
The operation principle of the air blower is as follows：
Actuator drives rotor 2 to rotate by rotating shaft 3, so as to which driving blade 8 rotates, forms spiral air flow.Air-flow is divided
The shunting compression of flow 9, strengthens the speed of air-flow, air motion to during discharge pipe 5 along 5 axial air-out of discharge pipe.Simultaneously because
Pressure at spiral air flow is smaller, therefore air is entered in housing 1 from blast pipe 4, continues to produce air-flow.By above-mentioned circulation,
Make always to have in discharge pipe 5 air-flow of orientation to spray.
When air-flow is flow to around the first sealing ring 24 in flowing, changed course is stopped by annular protrusion 25 one by one, subtracted
The small probability of airflow leaks；When air current flow is to the second 16 surrounding of sealing ring, stopped by sealing broach 18 one by one, thus it is whole
Individual air blower has preferable air-tightness.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of centrifugal blower, including housing (1), be embedded in housing (1) rotor (2), for driving rotor (2) to rotate
Rotating shaft (3), the blast pipe (4) for air intake and the discharge pipe (5) for air-out, the blast pipe (4) and discharge pipe (5) are equal
Housing (1) is fixed on, it is characterized in that：The rotor (2) includes front shroud (6), back shroud (7) and blade (8), the blade
(8) between front shroud (6) and back shroud (7), the blade (8) sets in circular arc and along rotor (2) if being circumferentially with
Dry, the splitter (9) for shunting is provided between blade described in two panels (8), is set between the blast pipe (4) and rotor (2)
There is the first sealing ring (24), the rotor (2) sets to form inclined-plane (26) with respect to blast pipe (4) one end in necking, and described first
Sealing ring (24) inwall is installed with annular protrusion (25) along its circumference, the annular protrusion (25) be provided with vertically several and
Push against in inclined-plane (26).
2. a kind of centrifugal blower according to claim 1, it is characterized in that：The splitter (9) includes the first burst
(10) and the second burst (11), first burst (10) and the second burst (11) are disposed alternately at two pieces of adjacent blades successively
(8) between, and the first burst (10) and the second burst (11) are respectively positioned on blade (8) back to rotor (2) center one end, and described first
The length of burst (10) is the 2/5~3/5 of blade (8) length, and the length of second burst (11) is the 2/ of blade (8) length
3~3/4.
3. a kind of centrifugal blower according to claim 2, it is characterized in that：Splitter (9) relative rotor (2) center
One end sets to form wind-guiding face (12) in circular arc.
4. a kind of centrifugal blower according to claim 3, it is characterized in that：It is threaded with and turns on the front shroud (6)
Dynamic bolt (13), the rotating bolt (13) are threadedly connected to splitter (9) relative rotor (2) center one end and back shroud (7).
5. a kind of centrifugal blower according to claim 4, it is characterized in that：The front shroud (6) and back shroud (7) equal court
Set to back to blade (8) side in depression.
6. a kind of centrifugal blower according to claim 5, it is characterized in that：The front shroud (6) is back to back shroud (7) one
End outer wall and the back shroud (7) circumferentially offer caulking groove (14), the housing back to front shroud (6) one end outer wall along it
(1) inwall is installed with the capel (15) being embedded in caulking groove (14) along its circumference, and the capel (15) is connected to caulking groove (14), and
The front shroud (6) and back shroud (7) are rotationally connected with capel (15).
7. a kind of centrifugal blower according to claim 1, it is characterized in that：Described housing (1) one end offers mounting groove
(19), the blast pipe (4) sets the erecting bed (20) to be formed and be adapted with front shroud (6) with respect to housing (1) one end in enlarging,
Erecting bed (20) outer wall is axially facing back to rotor (2) side along it and is installed with mounting ring (21), the mounting ring (21)
It is embedded in mounting groove (19) and pushes against in mounting groove (19) inwall.
8. a kind of centrifugal blower according to claim 7, it is characterized in that：It is threadedly coupled on the mounting ring (21) useful
In the installation bolt (22) for being fixedly connected with mounting ring (21) and housing (1).
9. a kind of centrifugal blower according to claim 8, it is characterized in that：Set between the housing (1) and back shroud (7)
There is the second sealing ring (16), the second sealing ring (16) inwall is installed with sealing broach (18), the sealing comb along its circumference
Tooth (18) is installed with several along its axial direction, and the width of the sealing broach (18) is from close to rotor (2) one end to remote rotor
(2) one end becomes larger, and the sealing broach (18) pushes against rotor (2) outer wall.
10. a kind of centrifugal blower according to claim 9, it is characterized in that：Second sealing ring (16) is back to housing
(1) one end outer wall is installed with bulge loop (17) along its circumference, and bulge loop (17) outer wall is pushed against in housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720429231.3U CN206860526U (en) | 2017-04-22 | 2017-04-22 | A kind of centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720429231.3U CN206860526U (en) | 2017-04-22 | 2017-04-22 | A kind of centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206860526U true CN206860526U (en) | 2018-01-09 |
Family
ID=60817242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720429231.3U Active CN206860526U (en) | 2017-04-22 | 2017-04-22 | A kind of centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206860526U (en) |
-
2017
- 2017-04-22 CN CN201720429231.3U patent/CN206860526U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A centrifugal blower Effective date of registration: 20211227 Granted publication date: 20180109 Pledgee: Zhejiang Wenling Rural Commercial Bank Co.,Ltd. Pledgor: TAIZHOU REXCHIP MECHANICAL AND ELECTRICAL CO.,LTD. Registration number: Y2021330002675 |