CN205136122U - Blade angle adjustable axial fan impeller - Google Patents
Blade angle adjustable axial fan impeller Download PDFInfo
- Publication number
- CN205136122U CN205136122U CN201520965588.4U CN201520965588U CN205136122U CN 205136122 U CN205136122 U CN 205136122U CN 201520965588 U CN201520965588 U CN 201520965588U CN 205136122 U CN205136122 U CN 205136122U
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- snap ring
- petiole
- blade
- disc
- hub
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Abstract
The utility model discloses a blade angle adjustable axial fan impeller, including blade, wheel hub and reel, wheel hub include radials and hub circle, the radials is connected with the hub circle, the reel is connected with the radials, and the reel is coaxial with wheel hub, the root of blade is equipped with the petiole, the hub circle the hole of evenly arranging a plurality of fixed petioles, the petiole of blade passes the hole of the fixed petiole that the hub circled, install on the radials through clamping mechanism. The utility model discloses simple structure, with low costs, moreover the utility model discloses a blade is dismantled and blade angle adjusts the convenience.
Description
Technical field
The utility model belongs to Fan Equipment, relates to a kind of axial flow fan vane wheel of adjustable blade burner specifically.
Background technique
Impeller is the parts realizing energy conversion of axial-flow blower, the structural parameter such as the rotating speed of the quantity of blade and angle, impeller and hub ratio, has crucial effect to fan performance.After the quantity of the hub ratio of a Fans, rotating speed and blade is relatively fixing, the change of adaptive system operating mode, usually need to adjust blade angle.Realize the adjustable blade burner of axial-flow blower, need between blade with wheel hub to adopt dismoutability to be connected.Meanwhile, the structure of wheel hub fully will guarantee to bear centrifugal force and blast that blade produces in rotation to the running torque of blade.
The adjustable blade burner of axial-flow blower, the fixation method of its blade is general have following several:
The first: on wheel hub ring, fix several petiole sleeves, the petiole tail end of blade is processed into axle journal, at each axle journal place, adopt the ring-shaped clip that a pair can be split, pass through screw fastening, obvolvent forms a circular clamping chamber, petiole sleeve end is utilized to bear the concentric force of blade, simultaneously, at two end faces that engage of snap ring with petiole sleeve, the tongue-and-groove that respectively machining shape is corresponding with size, the frictional force that screws clamp petiole sleeve produces passes to clip, more logical clip and petiole sleeve end face tongue-and-groove realize the spline of blade.
The second: on above-mentioned basis, do not change the journal structure of petiole sleeve and the petiole tail end bearing axial force, the end face tongue-and-groove of ring-shaped clip and petiole sleeve is removed, in addition at the outer STH of petiole sleeve, hole is built with the briquetting of a band wedge lock mechanism, exerted a force by locking device, make to produce frictional force between briquetting and petiole, thus reach the object of spline.
The third: Chinese patent ZL201020537899.8, discloses a kind of structure of adjustable blade burner, is carried out the mode of obvolvent by two overall impeller hub A and hub B bolton.Hub has several grooves corresponding with blade quantity, the boss of blade tail end is embedded in groove.Centrifugal force is born on the step mating face of boss and groove, and two hubs are pressed on the spline that petiolar frictional force realizes blade, unclamps to turn hub and just can adjust the angle of multiple blade.
4th kind: Chinese patent ZL201320430913, the blade lock chamber obvolvent structure adopted is substantially identical with ZL201020537899.8, difference be, hub and reel separate machined, hub A and hub B aluminum alloy material are processed, reel has ironcasting, and two integrated type hub obvolvents are simultaneously on the reel of cast iron.
5th kind: Chinese patent ZL201220213272, the obvolvent structure of blade lock chamber is identical with the above two.Unlike, on the hub that reel is integrated with wheel hub, be designed to the lock chamber identical with blade quantity, simultaneously, have employed several independently compact heaps corresponding with blade quantity to be formed to locate by bolt and lock chamber obvolvent and clamp chamber, pressure regulation is carried out to blade tight.
Above-mentioned all structures all having some limitations property and irrationalities, for the first structure, petiole needs the section of cooperation of certain length with petiole sleeve, prevents petiole from swinging in cover.In use, when cooperation position is subject to the impact of dust and humid air to produce corrosion, even if the bolt on clip is unclamped, blade is also difficult to rotate.Meanwhile, process tongue-and-groove at the end face of petiole sleeve and snap ring, processing is large, and the precision of cooperation not easily ensures.Adopt petiole sleeve supporting blade, and bear centrifugal force, the processing technology of petiole sleeve also has higher requirement.The second structure, although the difficulty of processing problem overcoming snap ring end face mortice opening, adopt the briquetting of band wedge lock mechanism, parts quantity increases, complex structure, and difficulty of processing increases.Further, the impact that the cooperation position between petiole and petiole sleeve is subject to dust and humid air produces corrosion and the problem that makes blade stuck exists too.The third structure, two overall hubs clamp multiple blade simultaneously, no matter the clamping chamber on dish or the clamping neck on blade, positioning tolerance and size tolerance requirements are very high, i.e. enable guarantee precision, when mounted, be also easy to generation between each blade and interfere with each other phenomenon, and be difficult to ensure that individual blade does not get loose.The clamping neck of petiole is placed in the clamping chamber of two hubs, requires that hub has larger thickness.4th kind of structure, adopt aluminium alloy wheel hub, cast iron reel, both separate machined, reduce to some extent than the difficulty of processing of the third structure, but interfere with each other phenomenon and individual blade during blades installation loosen phenomenon and can not avoid completely.5th kind of structure, on third and fourth basis, decreases an integrated type hub, and difficulty of processing reduces, and avoid blade and interfere with each other phenomenon, each blade is locked respectively, ensure that blade can not loosen.But still have one and reel integral formula hub, petiole clamping cavity segment in the above, needs larger thickness.Third and fourth, five these several structures, the impeller little to diameter, still can apply, and to the impeller of large plane No., substantially can not realize.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model have employed that a kind of structure is simple, the blade wheel structure of blade dismounting and adjustment of blade angle adjustable blade burner easily.
The technical solution adopted in the utility model is: a kind of axial flow fan vane wheel of adjustable blade burner, comprises blade, wheel hub and reel, and described wheel hub comprises disc and hub circle, and disc is connected with hub circle; Reel is connected with disc, and reel is coaxial with wheel hub; The root of blade is provided with petiole; It is characterized in that: the hole described hub circle being evenly arranged multiple fixing petiole; The petiole of blade passes the hole of the fixing petiole on wheel hub ring; Be arranged on disc by fastening device.
In the axial flow fan vane wheel of above-mentioned adjustable blade burner, described disc cylindrical corresponds to hole hub circle being fixed petiole and be provided with U-shaped groove; Described fastening device comprises snap ring and lower snap ring, and upper snap ring and lower snap ring correspond to the U-shaped groove on disc, are arranged on the both sides of disc by screw, forms clamping chamber, clamping chamber clamping petiole.
In the axial flow fan vane wheel of above-mentioned adjustable blade burner, upper snap ring and lower snap ring are the hooping structures being with wing otic placode, and the wing otic placode of upper snap ring is provided with counterbore; The counterbore wing otic placode of lower snap ring corresponding to upper snap ring is provided with tapped hole; On disc, the both sides of U-shaped groove correspond to the counterbore of upper snap ring and are provided with through hole.
In the axial flow fan vane wheel of above-mentioned adjustable blade burner, between the otic placode of upper snap ring and disc, there is the compression gap of 1-2mm, between the otic placode of lower snap ring and disc, have the compression gap of 1-2mm.
In the axial flow fan vane wheel of above-mentioned adjustable blade burner, petiole is provided with clamping neck, and clamping recess diameter coordinates with clamping chamber, and petiole tail end diameter is greater than the diameter of the clamping neck of petiole.
Compared with prior art, the beneficial effects of the utility model are:
1, structure is simply novel.Upper snap ring, lower snap ring, by after screw obvolvent fastening, connect into removable structure with impeller disc; The impacting force of snap ring is adopted to prevent blade rotation; Born the centrifugal force of blade by the end face after snap ring obvolvent, and pass to wheel hub disc by bolt.
2, the dismounting of blade and angle adjustment convenient.The fixing of blade does not need petiole sleeve, directly contacts with wheel hub, and petiole is directly connected with snap ring through wheel hub ring, stator blade Cock screw, and dismounting or rotor blade only need unclamp screw, and blade can not be stuck because of reasons such as corrosions.
3, processing technology is simple.Wheel hub does not need arrange petiole sleeve, decrease a large amount of welding jobs, the perforate on hub circle and disc, required precision is not high yet, easy processing.The structure of snap ring also simplify, and difficulty of processing reduces, and reduces cost of production.
4, manufacture cost reduces.Because blade centrifugal force is not born by hub circle, do not need to weld petiole sleeve, the thickness of hub circle decreases more than 1/2, no matter be that Master Cost or processing charges all significantly reduce.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the B-B sectional view in Fig. 1.
Fig. 3 is the A-A cutaway view Amplified image in Fig. 1.
Fig. 4 is the structural representation of wheel hub of the present utility model.
Fig. 5 is the C-C sectional view in Fig. 4.
Fig. 6 is the structural representation of blade of the present utility model.
1, the hole of blade 2, wheel hub 3, reel 4, bolt 5, upper snap ring 6, socket head screw 7, lower snap ring 201, disc 202, hub circle 203, U-shaped groove 204, fixing petiole.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1-Figure 3, the utility model comprises blade 1, wheel hub 2, reel 3, upper snap ring 5, lower snap ring 7.As shown in Figure 4,5, described wheel hub 2 connects into overall structure by disc 201, hub circle 202.Wheel hub 2 and reel 3 connect into removable structure by bolt 4, and wheel hub 2 is coaxial with reel 3.Along several blades 1 of wheel hub 2 circumference uniform distribution, each blade 1 connects into removable structure by upper snap ring 5, lower snap ring 7, socket head screw 6 with the disc 201 of wheel hub 2.
As shown in Figure 1,3, upper snap ring 5 and lower snap ring 7 are the hooping structures being with wing otic placode.The wing otic placode of upper snap ring 5 has a pair counterbore, and the counterbore wing otic placode of lower snap ring 7 corresponding to upper snap ring is provided with tapped hole.
As shown in Figure 4,5, wheel hub 2 is by disc 201, the affixed integrally structure of hub circle 202.The disc 201 of wheel hub 2 along the circumferential direction evenly has several U-shaped grooves 203, and hub circle 202 along the circumferential direction has the hole 204 of quantity and the position fixing petiole corresponding with U-shaped groove 203, and the hole 204 of fixing petiole is through with U-shaped groove 203.The both sides, each U-shaped groove 203 place of disc 201, with U-shaped groove 203 center line for symmetry axis has a pair through hole corresponding with the wing otic placode upper screwed hole of lower snap ring 7.
Upper snap ring 5 and lower snap ring 7 are fixed on the both sides at U-shaped groove 203 place of disc 201 by socket head screw 6, form the clamping chamber of cohesion style, and the petiole of blade 1 inserts the hole 204 of fixing petiole, and the petiole of blade 1 is held in clamping chamber tightly.Between the wing otic placode of upper snap ring 5, lower snap ring 7 and disc 201, there is the compression gap of 1-2mm respectively.
As shown in Figure 6, the petiole of blade 1 is provided with a clamping neck 11, and the diameter of clamping neck 11 coordinates with the clamping chamber formed when upper snap ring 5, lower snap ring 7 obvolvent, and the diameter of petiole tail end is greater than the diameter of the clamping neck 11 of petiole.During clamping, form the end face clamping chamber after the step surface that the clamping neck of blade 1 11 and petiole tail end are formed and upper snap ring 5, lower snap ring 7 obvolvent and fit tightly, the centrifugal force of blade 1 generation when bearing rotation.
Above content is only to the explanation of the utility model structure example; the various amendments that specific embodiments described by the utility model is made, to supplement; or adopt similar mode to replace; only otherwise depart from structure of the present utility model; or do not surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (5)
1. an axial flow fan vane wheel for adjustable blade burner, comprises blade, wheel hub and reel, and described wheel hub comprises disc and hub circle, and disc is connected with hub circle; Reel is connected with disc, and reel is coaxial with wheel hub; The root of blade is provided with petiole; It is characterized in that: the hole described hub circle being evenly arranged multiple fixing petiole, the petiole of blade passes the hole of the fixing petiole on wheel hub ring; Be arranged on disc by fastening device.
2. the axial flow fan vane wheel of adjustable blade burner according to claim 1, is characterized in that: described disc cylindrical corresponds to hole hub circle being fixed petiole and be provided with U-shaped groove; Described fastening device comprises snap ring and lower snap ring, and upper snap ring and lower snap ring correspond to the U-shaped groove on disc, are arranged on the both sides of disc by screw, forms clamping chamber, clamping chamber clamping petiole.
3. the axial flow fan vane wheel of adjustable blade burner according to claim 2, is characterized in that: upper snap ring and lower snap ring are the hooping structures being with wing otic placode, and the wing otic placode of upper snap ring is provided with counterbore; The counterbore wing otic placode of lower snap ring corresponding to upper snap ring is provided with tapped hole; On disc, the both sides of U-shaped groove correspond to the counterbore of upper snap ring and are provided with through hole.
4. the axial flow fan vane wheel of adjustable blade burner according to claim 2, is characterized in that:, there is the compression gap of 1-2mm in the compression gap having 1-2mm between the otic placode of upper snap ring and disc between the otic placode of lower snap ring and disc.
5. the axial flow fan vane wheel of adjustable blade burner according to claim 2, is characterized in that: petiole is provided with clamping neck, and clamping recess diameter coordinates with clamping chamber, and petiole tail end diameter is greater than the diameter of the clamping neck of petiole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520965588.4U CN205136122U (en) | 2015-11-26 | 2015-11-26 | Blade angle adjustable axial fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520965588.4U CN205136122U (en) | 2015-11-26 | 2015-11-26 | Blade angle adjustable axial fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205136122U true CN205136122U (en) | 2016-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520965588.4U Expired - Fee Related CN205136122U (en) | 2015-11-26 | 2015-11-26 | Blade angle adjustable axial fan impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205136122U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2551719A (en) * | 2016-06-27 | 2018-01-03 | Truflo Air Movement Ltd | Improvements in and relating to a fan assembly |
| CN110206758A (en) * | 2019-07-18 | 2019-09-06 | 浙江沈力防爆机电有限公司 | A kind of air quantity adjustable fan based on adjusting fan blade angles |
| CN110230607A (en) * | 2019-07-23 | 2019-09-13 | 山西省侯马市鑫丰康风机有限公司 | A method of reinforcing propeller fan wheel hub intensity |
| CN110374919A (en) * | 2019-08-19 | 2019-10-25 | 南通迪瓦特节能风机有限公司 | A kind of cold axial flow blower impeller of noise reduction ring |
| CN113530886A (en) * | 2020-04-22 | 2021-10-22 | 中国电建集团透平科技有限公司 | Large wind tunnel fan impeller |
| CN114183396A (en) * | 2021-11-26 | 2022-03-15 | 苏州睿昕汽车配件有限公司 | Assembled fan and assembling method thereof |
| CN115711242A (en) * | 2022-10-24 | 2023-02-24 | 北京新安特风机有限公司 | Impeller structure of stationary blade adjustable axial flow fan and preparation thereof |
-
2015
- 2015-11-26 CN CN201520965588.4U patent/CN205136122U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2551719A (en) * | 2016-06-27 | 2018-01-03 | Truflo Air Movement Ltd | Improvements in and relating to a fan assembly |
| CN110206758A (en) * | 2019-07-18 | 2019-09-06 | 浙江沈力防爆机电有限公司 | A kind of air quantity adjustable fan based on adjusting fan blade angles |
| CN110230607A (en) * | 2019-07-23 | 2019-09-13 | 山西省侯马市鑫丰康风机有限公司 | A method of reinforcing propeller fan wheel hub intensity |
| CN110374919A (en) * | 2019-08-19 | 2019-10-25 | 南通迪瓦特节能风机有限公司 | A kind of cold axial flow blower impeller of noise reduction ring |
| CN113530886A (en) * | 2020-04-22 | 2021-10-22 | 中国电建集团透平科技有限公司 | Large wind tunnel fan impeller |
| CN114183396A (en) * | 2021-11-26 | 2022-03-15 | 苏州睿昕汽车配件有限公司 | Assembled fan and assembling method thereof |
| CN114183396B (en) * | 2021-11-26 | 2024-05-28 | 苏州睿昕汽车配件有限公司 | Assembled fan and assembling method thereof |
| CN115711242A (en) * | 2022-10-24 | 2023-02-24 | 北京新安特风机有限公司 | Impeller structure of stationary blade adjustable axial flow fan and preparation thereof |
| CN115711242B (en) * | 2022-10-24 | 2023-12-22 | 北京新安特风机有限公司 | Impeller structure of axial flow fan with adjustable stationary blade and preparation thereof |
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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 |
Granted publication date: 20160406 Termination date: 20181126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |