CN211715399U - Axial flow fan blade with adjustable blade angle and fan with same - Google Patents
Axial flow fan blade with adjustable blade angle and fan with same Download PDFInfo
- Publication number
- CN211715399U CN211715399U CN201922391976.7U CN201922391976U CN211715399U CN 211715399 U CN211715399 U CN 211715399U CN 201922391976 U CN201922391976 U CN 201922391976U CN 211715399 U CN211715399 U CN 211715399U
- Authority
- CN
- China
- Prior art keywords
- blade
- hub
- angle
- hole
- axial
- 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.)
- Active
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to an axial flow fan blade with adjustable blade angle and a fan with the fan blade, which comprises a hub and a plurality of blades arranged around the hub, and is characterized in that the inner end of each blade is provided with a connecting column which radially passes through a through hole on the side wall of the hub and is matched with a tooth socket of the through hole and is fixed by a fastener; the inner edge of the blade is pressed against the side wall of the hub. The tip of blade forms the spliced pole to the tooth's socket cooperation through the through-hole on spliced pole and the wheel hub lateral wall realizes the fine setting of blade angle, through the blade inner edge with the wheel hub lateral wall offsets completely and increases the joint strength between blade and the wheel hub, impeller simple structure, convenient to use adjusts accurate, the wide range of blade angle, can satisfy multiple operating mode.
Description
Technical Field
The utility model relates to an axial fan field especially relates to an axial fan blade of blade angularly adjustable.
Background
Axial fan's usage is extensive, often is applied to all kinds of places that need cool off and ventilate, and the impeller in the current fan, its blade or with wheel hub integrated into one piece, or fixed mounting are to wheel hub, and no matter which kind of mode all is once processed the completion, the blade angle just can not change, therefore the operation requirement of a work condition can only be satisfied to a finished product impeller. In the actual use process, due to the fact that the working environment is complex, the required ventilation volume and the required air pressure are different, the ventilator is in the best working state, the ventilator needs to be matched with the impeller with the appropriate parameters, equipment is troublesome to replace, cost burden is increased, and the effective utilization rate of the ventilator is reduced. The existing angle-adjustable impellers in the market at present are complex in structure, high in processing and manufacturing difficulty, troublesome in angle adjusting method, low in reliability, low in practicability for the rail transit industry needing large-batch use, and difficult to realize large-scale production and application.
As shown in fig. 1, chinese utility model publication No. CN 202451463U relates to an adjustable angle axial fan blade, including impeller dish and the blade of evenly installing on the impeller dish circumference, the impeller dish is formed through fastener fixed connection by relative coupling disc I about by and coupling disc II, sets up recess I and recess II on coupling disc I and the coupling disc II respectively, and the piece bottom is installed in the space that recess I and recess II formed, and the butt joint department of blade and impeller dish is marked with the regulation scale mark. The angle of each blade among the prior art can be unified regulation control, but the structure is more complicated, and the blade is not stable enough with being connected of wheel hub simultaneously.
Disclosure of Invention
In order to solve the problem, the utility model aims to provide an axial compressor fan blade that simple structure, blade angularly adjustable, blade even intensity are high.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an axial flow fan blade with an adjustable blade angle comprises a hub and a plurality of blades arranged around the hub, wherein a connecting column is arranged at the inner end of each blade, radially penetrates through a through hole in the side wall of the hub, is matched with a tooth socket of the through hole, and is fixed through a fastener; the inner edge of the blade is completely abutted against the side wall of the hub. Through the connecting column and the tooth socket of the through hole, the connecting column can be inserted into the through hole again after being pulled out and adjusted by a certain angle, so that the angle of the blade can be adjusted, and the inner edge of the blade is completely abutted against the side wall of the hub, so that the connecting strength between the blade and the hub is greatly enhanced.
Furthermore, the edge of the through hole of the hub is a plane, and the inner edge of the blade is also a plane. The two planes are mutually abutted, so that the connection relation between the hub and the blades is tighter under the condition that the inclination angle of the blades is changed, and the connection stability is ensured.
Furthermore, full tooth's socket is arranged along the trompil direction to the through-hole inner wall, be provided with on the spliced pole can with tooth's socket complex rack, be provided with around the circular slot outer wall with the scale mark that the tooth's socket corresponds. The scale marks are clearly aligned when the angle is adjusted, so that the inclination angles of the blades arranged on the ring hub are consistent. Under the condition that the scale marks are arranged, the tooth grooves are fully distributed in the through hole, and the connecting column is provided with the rack, so that the blade can be inserted into the through hole at a specific angle as long as the rack is aligned with a certain scale.
Furthermore, the hub comprises a top cover and a base which is provided with a side wall and connected with the top cover, and the inner end of a connecting column penetrating through the side wall of the hub is fixedly connected with a fastener in a screwing mode, so that a nut, the hub and the end face of the blade clamp the side wall of the hub after installation is completed. The hub is a structure with the upper cover and the base detachable, so that the through hole can be arranged in the middle of the side wall of the hub, the structural symmetry is guaranteed, the waste of materials is reduced, meanwhile, the connecting column is inserted into the through hole, the top cover is required to be opened, the fastening piece is installed at the inner end of the connecting column penetrating through the side wall of the hub, and the side wall of the hub is guaranteed to be tightly attached to the inner edge of the blade.
Furthermore, a rotating shaft sleeve detachably connected with the hub is arranged in the hub, and the rotating shaft sleeve is circumferentially positioned with the hub, so that the rotating shaft sleeve can drive the hub to rotate. Wheel hub and pivot cover releasable connection mean can through change take the pivot of pivot cover to adjust the pivot that the rim plate corresponds still can be for simultaneously the blade installation back installation provide bigger operating space during the fastener. The rotating shaft sleeve is circumferentially positioned with the hub and fixedly connected with the hub, the rotating shaft is also circumferentially fixedly connected with the hub relatively, and the rotating shaft can drive the hub to rotate.
Furthermore, at least one end part of the two axial ends of the rotating shaft sleeve is provided with a plurality of positioning strips protruding in the radial direction, and the bottom wall of the hub and/or the top cover are/is provided with mounting grooves matched with the end parts of the rotating shaft sleeve. Through the matching of the end part with the positioning strip, the hub bottom plate and the top cover, the rotating shaft sleeve can move out of the mounting groove along the axial direction of the rotating shaft sleeve after the top plate is moved away.
A fan comprises the axial flow fan blade.
The above technical scheme is adopted in the utility model, the tip of blade forms the spliced pole to the tooth's socket cooperation through the through-hole on spliced pole and the wheel hub lateral wall realizes the fine setting of blade angle, through the blade inner edge with the wheel hub lateral wall offsets completely and increases the joint strength between blade and the wheel hub, impeller simple structure, convenient to use adjusts accurate, the wide range of blade angle, can satisfy multiple operating mode.
Drawings
Fig. 1 is a prior art explanatory diagram.
Fig. 2 is an explanatory view of the present invention.
Fig. 3 is an explanatory view of the blade of the present invention.
Fig. 4 is an explanatory view of the installation of the wheel hub of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Example 1: as shown in fig. 2-4, an axial flow fan blade with an adjustable blade angle comprises a hub 1 and a plurality of blades 2 arranged around the hub, wherein a connecting column 3 is arranged at the inner end of each blade, the connecting column radially penetrates through a through hole 4 in the side wall of the hub, and the inner edge of each blade is abutted against the side wall of the hub and is fixed through a fastener. The through hole is connected with the connecting column tooth socket. Through tooth's socket connection, make the spliced pole extract after adjusting certain angle can insert again the through-hole to the realization is adjusted the effect of blade angle. In order to make the connection relationship between the hub side wall and the blade tighter, the blade edge and the hub side wall need to have as large a contact area as possible, and at the same time, the blade needs to be ensured to be always tightly attached to the through hole edge in the process of adjusting the angle,
in order to ensure that the blade can be always attached to the edge of the through hole in the angle adjusting process, the edge of the through hole and the inner edge of the blade can be all planes, or the edge of the through hole can be a spherical surface while the inner edge of the blade is an arc-shaped surface, and the edge of the through hole and the inner edge of the blade are all planes which are obviously more suitable for processing at an angle which is simple and convenient. The following are specific embodiments.
As shown in fig. 2 to 4, the through-hole edge 6 of the hub is a plane, and the blade edge 5 is also a plane. The two planes are abutted to enable the connection relation between the hub and the blades to be tighter, after the angle is changed, the inner edge of each blade is always abutted to the side wall of the hub, and when the hub drives the blades to rotate, the blades cannot shake due to no moving space, so that possible damage to the existing structure is prevented, and the connection stability is ensured.
When adjusting the angle of blade, need with the blade spliced pole shifts out earlier the through-hole, inserts according to required angle requirement again the through-hole sets up the angle that the scale mark can clearly know the regulation when angle regulation to guarantee to be unanimous between a plurality of blades that ring wheel hub set up, need set up a rack that aligns with the scale mark simultaneously. The following are specific embodiments.
As shown in fig. 2-4, the inner wall of the through hole is provided with a full tooth groove along the hole opening direction, the connecting column is provided with a rack which can be matched with the tooth groove, and the periphery of the outer wall of the circular groove is provided with scale marks corresponding to the tooth groove. The rack is aligned with the scale marks corresponding to the expected installation angle, so that the rack can be ensured to correspond to a proper tooth groove, and the inclination angle of the blade is ensured to be the same as the expected installation angle after the installation is finished.
Because the round hole setting of taking the tooth's socket is in wheel hub lateral wall middle part, so link to each other with the pivot in middle part simultaneously in order to guarantee the symmetry of structure, will wheel hub sets up to the form including top cap and base, realizes releasable connection through the screw between top cap and the base. The following are preferred embodiments.
As shown in fig. 2-4, the hub comprises a top cover 7 and a base 8 which is provided with a side wall and is connected with the top cover through a screw, the connecting column penetrates through the side wall of the hub, and the inner end 9 of the connecting column is fixedly connected with a fastener 10 through a screw.
In actual use, the blades can be detached and replaced, the rotating shaft can be replaced, but the rotating shaft is combined closely, and is troublesome to replace, so that the rotating shaft sleeve and the hub are detachably connected, and a larger operation space can be provided when the fastening piece is installed. Because wheel hub includes top cap and the base of taking the lateral wall and top cap threaded connection, the top cap is removable promptly, and the shown mounting groove that sets up will pivot cover card is between wheel hub's top cap and diapire, when tearing down the top cap, pivot cover alright with putaway. The following are specific embodiments.
As shown in fig. 2 to 4, a rotating shaft sleeve 11 which can be detachably connected is arranged in the wheel hub, a plurality of positioning strips 12 which protrude radially are arranged on at least one end part of each of the two ends of the rotating shaft sleeve, and a mounting groove 13 which is matched with the end part of the rotating shaft sleeve is arranged on the bottom wall and/or the top cover of the wheel hub.
Under this kind of embodiment, wheel hub and pivot cover releasable connection only need pull down the top cap of screw connection when the dismouting, and the relation between pivot cover and the wheel hub is destroyed promptly, and pivot cover axial direction can take out. The corresponding rotating shaft of the wheel disc can be adjusted by replacing the rotating shaft with the rotating shaft sleeve. Through set up sand grip and wheel hub circumference location at pivot cover tip, pivot and pivot cover fixed connection, the relative wheel hub of pivot also is circumference fixed connection, and the pivot can drive wheel hub rotates.
Except the raised lines, the end part of the rotating shaft sleeve is set to be non-circular, so that the circumferential fixation of the rotating shaft sleeve can be realized in a way that the end part of the rotating shaft sleeve can be matched with the groove on the hub.
Example 2: a fan comprises the axial flow fan blade in the embodiment 1.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.
Claims (7)
1. An axial flow fan blade with an adjustable blade angle comprises a hub and a plurality of blades arranged around the hub, and is characterized in that a connecting column is arranged at the inner end of each blade, penetrates through a through hole in the side wall of the hub in the radial direction, is matched with a tooth socket of the through hole, and is fixed through a fastener; the inner edge of the blade is completely abutted against the side wall of the hub.
2. The axial-flow fan blade with the angle-adjustable blade as claimed in claim 1, wherein the side wall of the hub is a plane, and the inner edge of the blade is a plane.
3. The axial flow fan blade with the angle-adjustable blade as claimed in claim 2, wherein the inner wall of the through hole is fully provided with a tooth groove along the opening direction, the connecting post is provided with a rack capable of being matched with the tooth groove, and the periphery of the outer wall of the through hole is provided with scale marks aligned with the tooth groove.
4. The axial-flow fan blade with the angle-adjustable blade as claimed in claim 1, wherein the hub includes a top cover and a base with a side wall and detachably connected to the top cover, the connecting column penetrates through the side wall of the base, and the inner end of the connecting column is screwed and connected to the fastening member.
5. The axial-flow fan blade with the adjustable blade angle as claimed in claim 4, wherein a detachably connected rotating shaft sleeve is disposed in the hub, and the rotating shaft sleeve is circumferentially positioned with the hub, so that the rotating shaft sleeve can drive the hub to rotate.
6. The axial-flow fan blade with the angle-adjustable blade as claimed in claim 5, wherein at least one of the two axial ends of the rotating shaft sleeve is provided with a plurality of radially protruding positioning strips, and the bottom wall and/or the top cover of the hub is provided with an installation groove matched with the end of the rotating shaft sleeve.
7. A fan is characterized by comprising the axial-flow fan blade with the angle adjustable as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922391976.7U CN211715399U (en) | 2019-12-26 | 2019-12-26 | Axial flow fan blade with adjustable blade angle and fan with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922391976.7U CN211715399U (en) | 2019-12-26 | 2019-12-26 | Axial flow fan blade with adjustable blade angle and fan with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211715399U true CN211715399U (en) | 2020-10-20 |
Family
ID=72820087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922391976.7U Active CN211715399U (en) | 2019-12-26 | 2019-12-26 | Axial flow fan blade with adjustable blade angle and fan with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211715399U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531583A (en) * | 2021-07-19 | 2021-10-22 | 中国航发沈阳发动机研究所 | Adjustable swirler |
| CN113738699A (en) * | 2020-05-29 | 2021-12-03 | 亚什兰水泵无锡有限公司 | Axial fan impeller with adjustable blade angle |
-
2019
- 2019-12-26 CN CN201922391976.7U patent/CN211715399U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738699A (en) * | 2020-05-29 | 2021-12-03 | 亚什兰水泵无锡有限公司 | Axial fan impeller with adjustable blade angle |
| CN113738699B (en) * | 2020-05-29 | 2024-07-02 | 亚什兰水泵无锡有限公司 | Axial flow fan impeller with adjustable blade angle |
| CN113531583A (en) * | 2021-07-19 | 2021-10-22 | 中国航发沈阳发动机研究所 | Adjustable swirler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211715399U (en) | Axial flow fan blade with adjustable blade angle and fan with same | |
| CN104169586B (en) | Fan with elastic center | |
| CN106194830B (en) | A kind of axial flow fan vane wheel of adjustable blade burner | |
| CN203463357U (en) | Angle-adjustable centrifugal impeller | |
| CN106402022B (en) | impeller and fan | |
| CN105134645B (en) | A kind of impeller and the centrifugal pump for being provided with the impeller | |
| CN205805621U (en) | A kind of rotor blade mounting structure | |
| CA2686331A1 (en) | Agitator for abrasive media | |
| US6736601B2 (en) | Impeller for an axial flow fan and a method of mounting a blade on a hub for such fan | |
| CN209354427U (en) | A kind of clean impeller of blower easy to disassemble | |
| CN216518830U (en) | Long service life anti-deformation multifunctional fan blade | |
| CN212899058U (en) | Axial flow fan | |
| CN103206392B (en) | Blade-adjustable ventilating machine | |
| CN206531249U (en) | Air-supply assembly and air conditioner | |
| CN206017260U (en) | A kind of axial flow fan vane wheel of adjustable blade burner | |
| CN205136071U (en) | Electronic disk of conical profile fan | |
| CN209158188U (en) | Draught fan impeller assembly tooling | |
| KR100525481B1 (en) | Angle adjusting apparatus of blade for fan in air conditioning system | |
| CN209654303U (en) | A kind of adjustable shutter axial wheel component | |
| CN207200414U (en) | A kind of cast-aluminum rotor | |
| CN213235492U (en) | Efficient heat dissipation and energy saving device for fan | |
| CN215260436U (en) | Rotary flow tuyere | |
| CN206626017U (en) | Axial-flow leaf and there is its electric fan | |
| CN220060007U (en) | Impeller with adjustable angle and energy-saving fan | |
| CN221220875U (en) | Fan with uniformly adjustable blades |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |