CN214274044U - Angle-adjustable blade assembly - Google Patents
Angle-adjustable blade assembly Download PDFInfo
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- CN214274044U CN214274044U CN202022700933.5U CN202022700933U CN214274044U CN 214274044 U CN214274044 U CN 214274044U CN 202022700933 U CN202022700933 U CN 202022700933U CN 214274044 U CN214274044 U CN 214274044U
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Abstract
The utility model relates to an angle-adjustable blade assembly, which belongs to the technical field of axial flow fan equipment, and the key point of the technical proposal is that the blade assembly comprises a fan impeller and a plurality of fan blades which are circumferentially and uniformly distributed around the axis of the fan impeller, a plurality of circular grooves which are circumferentially and uniformly distributed around the axis of the fan impeller are arranged on the peripheral surface of the fan impeller, a cylindrical connecting column is fixed at the connecting end of the fan impeller, and the connecting column can be placed in the circular groove and circumferentially rotate around the axis of the circular groove; the utility model discloses can adjust the installation angle of fan blade to axial fan's air volume can be adjusted.
Description
Technical Field
The utility model relates to an axial fan equipment technical field especially relates to a blade subassembly with adjustable angle.
Background
The blade assembly is a commonly used assembly on an axial flow fan and comprises a fan impeller and a plurality of fan blades fixed on the peripheral surface of the fan impeller. The blade subassembly is installed inside fan casing, rotates through motor drive fan wheel, and then drives fan blade and rotates. The specification of the blade assembly of the axial flow fan directly influences the ventilation volume of the axial flow fan, and the ventilation volume comprises the size and the shape of the fan blades, the number of the fan blades and the installation angle of the fan blades. The different installation angles of the fan blades and the fan impeller can cause the change of the ventilation volume of the axial flow fan.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a blade subassembly with adjustable angle can adjust fan blade's installation angle to can adjust axial fan's air volume.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a blade subassembly with adjustable angle, includes fan wheel and a plurality of fan blade around fan wheel axis circumference equipartition, set up the circular slot of a plurality of around fan wheel axis circumference equipartition on fan wheel global, fan blade's link is fixed with the spliced pole of cylinder type, the spliced pole can be put in the circular slot and around circular slot axis circumferential direction.
Through above-mentioned technical scheme, through seting up the circular slot on fan wheel global, fan blade installs on fan wheel through the spliced pole of cylinder type and the cooperation of circular slot, and then through rotating the spliced pole, and then can convenient and fast adjust the installation angle between fan blade and the fan wheel.
Preferably, a weight reduction groove is formed in the end face of one side of the fan impeller; the bottom of the circular groove is provided with at least three bottom holes axially penetrating through the peripheral wall of the lightening groove, and the upper surface of the connecting column is provided with at least three mounting holes axially penetrating through the connecting column; the bottom holes are uniformly distributed in the circumferential direction around the axis of the circular groove; the mounting holes correspond to the bottom holes one to one.
According to the technical scheme, the installation hole is divided into a plurality of rotary adjustment phases through the bottom hole and the installation hole, and when the installation angle of the fan blade is adjusted, different installation holes are aligned with the bottom hole in a rotary mode, so that different installation angles are obtained; and then utilize bolt and nut, use the bolt axial to pass mounting hole and bottom outlet, and then through the bolt, convenient and fast installs the spliced pole location in the circular slot.
Preferably, the bottom of the weight reduction groove is provided with a plurality of ventilation holes which axially penetrate through the fan impeller.
Through the technical scheme, the plurality of ventilation holes which axially penetrate through the fan impeller are formed in the bottom of the weight reduction groove, so that the influence of the fan impeller on the ventilation of the axial flow fan is reduced, and the functional loss of the fan in the rotating process is reduced.
Preferably, a transition part is arranged between the connecting column and the fan blade, and the cross section of the transition part is gradually increased from one end of the fan blade to one end of the connecting column.
Through above-mentioned technical scheme, through set up transition portion between spliced pole and fan wheel, and then the effectual joint strength who increases fan blade and spliced pole makes the blade subassembly at the during operation, and fan blade and spliced pole are difficult for breaking.
Preferably, the fan blade is in a gradually-changing shape with one end being in a wave shape and the other end being in an arc shape.
Through the technical scheme, the fan blade is gradually deformed, one end of the fan blade is wavy, and the other end of the fan blade is arc-shaped, so that the fan blade has smaller wind resistance in the rotating process.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of an angle-adjustable blade assembly.
Fig. 2 is a schematic structural view of a fan blade.
Fig. 3 is a schematic structural diagram of the connection relationship between the connection column and the fan impeller.
Wherein, 1, fan impeller; 11. a weight reduction groove; 12. a vent hole; 13. a circular groove; 14. a bottom hole; 2. a fan blade; 21. connecting columns; 22. a transition section; 23. mounting holes; 3. installing a bolt; 4. and (6) mounting the nut.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example (b):
an angle-adjustable blade assembly, refer to fig. 1 and 2, includes a fan impeller 1 and a plurality of fan blades 2 uniformly distributed around the axis of the fan impeller 1 in the circumferential direction. The shape of the fan blade 2 is a gradually-changing body with one end being wave-shaped and the other end being arc-shaped, and by adopting the shape, when the impeller rotates, the impeller has smaller wind resistance.
Referring to fig. 1 and 2, a weight-reducing groove 11 is formed in one end surface of the fan impeller 1. The bottom of the weight reduction groove 11 is provided with a plurality of ventilation holes 12 which axially penetrate through the fan impeller 1. Through the setting of lightening groove 11, can lighten fan wheel 1's weight, make more energy-conserving when rotating drive fan wheel 1. Through the setting of ventilation hole 12, reduce fan wheel 1 to the influence of axial fan ventilation to reduce the fan and rotate the functional loss of in-process.
Referring to fig. 1 to 3, a cylindrical connection column 21 is fixed to a connection end of the fan blade 2, a transition portion 22 is disposed between the connection column 21 and the fan impeller 1, and a cross section of the transition portion 22 is gradually increased from one end of the fan blade 2 to one end of the connection column 21. The circumferential surface of the fan impeller 1 is provided with a plurality of circular grooves 13 which are uniformly distributed in the circumferential direction around the axis of the fan impeller 1, and the connecting column 21 can be arranged in the circular grooves 13 and can rotate in the circumferential direction around the axis of the circular grooves 13. The bottom of the circular groove 13 is provided with at least three bottom holes 14 axially penetrating through the peripheral wall of the lightening groove 11, and the upper surface of the connecting column 21 is provided with at least three mounting holes 23 axially penetrating through the connecting column 21; the bottom holes 14 are evenly distributed in the circumferential direction around the axis of the circular groove 13, and the mounting holes 23 correspond to the bottom holes 14 one by one. The mounting hole 23 is provided with a mounting bolt 3 and a mounting nut 4 in threaded engagement with the mounting bolt 3, the mounting bolt 3 axially penetrates through the mounting hole 23 and the bottom hole 14, the mounting nut 4 is engaged with the mounting bolt 3 at the lower part of the bottom hole 14, and the fan blade 2 is mounted and fixed on the fan impeller 1.
Through the arrangement of the bottom hole 14 and the mounting hole 23, the mounting hole 23 is divided into a plurality of rotary adjusting phases, and when the mounting angle of the fan blade 2 is adjusted, different mounting holes 23 are aligned with the bottom hole 14 in a rotary mode, so that different mounting angles are obtained; and then utilize bolt and nut, use the bolt axial to pass mounting hole 23 and bottom outlet 14, and then through bolting, convenient and fast fixes a position the spliced pole 21 and installs in circular slot 13.
The specific implementation principle of this embodiment is as follows:
when the angle-adjustable blade assembly is used, the mounting bolts 3 and the mounting nuts 4 at the connecting columns 21 are detached according to the requirement of the ventilation size of the axial flow fan. Rotate spliced pole 21, according to the ventilation effect, align corresponding mounting hole 23 and bottom outlet 14, and then use mounting bolt 3 and mounting nut 4 to fix spliced pole 21 in circular slot 13, and then accomplish the regulation location to fan blade 2 angle.
Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (5)
1. The utility model provides an angle adjustable blade subassembly, includes fan wheel (1) and a plurality of fan blade (2) around fan wheel (1) axis circumference equipartition, its characterized in that: the fan blade is characterized in that a plurality of circular grooves (13) which are uniformly distributed in the circumferential direction of the axis of the fan blade (1) are formed in the circumferential surface of the fan blade (1), connecting columns (21) of cylindrical shapes are fixed at the connecting ends of the fan blades (2), and the connecting columns (21) can be arranged in the circular grooves (13) and rotate in the circumferential direction of the axis of the circular grooves (13).
2. An angle-adjustable blade assembly according to claim 1, characterized in that: a weight reduction groove (11) is formed in the end face of one side of the fan impeller (1); the bottom of the circular groove (13) is provided with at least three bottom holes (14) which axially penetrate through the peripheral wall of the lightening groove (11), and the upper surface of the connecting column (21) is provided with at least three mounting holes (23) which axially penetrate through the connecting column (21); the bottom holes (14) are uniformly distributed in the circumferential direction around the axis of the circular groove (13); the mounting holes (23) correspond to the bottom holes (14) one by one.
3. An angle-adjustable blade assembly according to claim 2, wherein: and a plurality of ventilation holes (12) which axially penetrate through the fan impeller (1) are formed at the bottom of the weight reduction groove (11).
4. An angle-adjustable blade assembly according to claim 1, characterized in that: be provided with transition portion (22) between spliced pole (21) and fan blade (2), the cross section of transition portion (22) is by the one end of fan blade (2) to the one end of spliced pole (21) crescent.
5. An angle-adjustable blade assembly according to claim 1, characterized in that: the fan blade (2) is in a gradually-changed body with one end being wavy and the other end being arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022700933.5U CN214274044U (en) | 2020-11-20 | 2020-11-20 | Angle-adjustable blade assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022700933.5U CN214274044U (en) | 2020-11-20 | 2020-11-20 | Angle-adjustable blade assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214274044U true CN214274044U (en) | 2021-09-24 |
Family
ID=77776088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022700933.5U Active CN214274044U (en) | 2020-11-20 | 2020-11-20 | Angle-adjustable blade assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214274044U (en) |
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2020
- 2020-11-20 CN CN202022700933.5U patent/CN214274044U/en active Active
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