CN219492674U

CN219492674U - Impeller wheel

Info

Publication number: CN219492674U
Application number: CN202320049444.9U
Authority: CN
Inventors: 王汤俊; 王燕子
Original assignee: Hangzhou Tonglu Railway Machinery Co ltd
Current assignee: Hangzhou Tonglu Railway Machinery Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-08-08
Anticipated expiration: 2033-01-04

Abstract

The utility model discloses an impeller, which comprises a hub; the outer side of the hub is provided with a blade rotating mechanism at equal included angles, and the blade rotating mechanism is clamped and provided with blades; a fairing is arranged on one side of the hub, close to the air inlet; the fairing is fixedly connected with the hub through screws; the filter screen is in a ring shape matched with the fairing and the air duct, the inner frame of the filter screen is fixed on the peripheral side surface of the fairing near the hub through screws, and the outer frame of the fairing is in clearance fit with the inner side wall of the air duct; according to the utility model, the electret electrostatic synthetic fiber filter screen or the aluminum-based honeycomb photocatalyst filter screen is arranged on the peripheral side surface of the position, close to the hub, of the fairing in a surrounding manner, so that the sucked air flow is filtered in advance, dust and impurities and the like in the air flow are filtered, the filtering efficiency is high, the wind resistance is small, the abrasion of blades can be effectively slowed down, the service life of a fan impeller is prolonged, and the running stability of a motor arranged in an air duct is facilitated.

Description

Impeller wheel

Technical Field

The utility model relates to the technical field of axial flow fans, in particular to an impeller.

Background

The axial flow fan is widely applied to various places needing cooling and ventilation, the blades of the impeller in the existing fan are integrally formed with the hub or fixedly mounted on the hub, and the angle of the blades cannot be changed once the fan is machined in any mode, so that the finished impeller can only meet the use requirement of one working condition, in the actual use process, the required ventilation quantity and wind pressure are different due to the complex condition of the working environment, and in order to ensure that the fan is in the optimal working state, the impeller with proper parameters is matched, so that the equipment is troublesome to replace, the cost burden is increased, and the effective use rate of the machine is reduced.

The utility model discloses an axial fan impeller (grant bulletin number: CN 213419466U) with adjustable blade angle, concretely relates to axial fan field, including impeller hub and axial fan blade, the tip of blade regulation pivot runs through to the inboard of impeller hub and cup joints the adjusting ring, one side of adjusting ring is connected with the slide wedge rack, locking mechanism spout has been seted up to the inner wall of impeller hub, locking mechanism internally mounted of locking mechanism spout has the locking mechanism, locking mechanism activity cup joints in the outside of slide wedge rack, the linkage adjusting ring is installed to the inner wall of impeller hub, the top fixed mounting of linkage adjusting ring and impeller hub has manual adjustment mechanism, the bottom surface of linkage adjusting ring is equipped with slide wedge mechanism. According to the utility model, the linkage adjusting ring and the wedge mechanism are arranged, the wedge mechanism and the wedge toothed bar are in abutting movement by utilizing the rotation of the linkage adjusting ring, so that the angle adjustment is carried out by adjusting the moving blades of the girdle, and the synchronous adjustment of each blade is realized by utilizing the linkage adjusting ring, so that the structure is simple and the operation is convenient; however, the impeller in the above patent is relatively complicated to mount to the output shaft, the impeller is inconvenient to mount and dismount, and solid particles in the outside air cannot be prevented from entering the impeller to cause the impeller to be damaged.

Disclosure of Invention

The present utility model is directed to an impeller to solve the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

an impeller comprising a hub; the outer side of the hub is provided with a blade rotating mechanism at equal included angles, and the blade rotating mechanism is clamped and provided with blades; a fairing is arranged on one side of the hub, close to the air inlet; the fairing is fixedly connected with the hub through screws; the filter screen is in an annular shape matched with the fairing and the air duct, the inner frame of the filter screen is fixed on the peripheral side face of the fairing near the hub through screws, and the outer frame of the fairing is in clearance fit with the inner side wall of the air duct.

As still further aspects of the utility model: the filter screen is an electret electrostatic synthetic fiber filter screen.

As still further aspects of the utility model: the blade rotating mechanism comprises a rotating base; the rotary base is cylindrical, and a blade mounting groove is formed in the front end of the rotary base; the blade mounting groove is internally clamped and mounted with a mounting plate; the mounting plate is fixedly mounted in the blade mounting groove through a blade compression screw, the rotating base is mounted on the side wall of the hub in a clamping manner, a sliding block is arranged on the side wall of the rotating base, and a circular sliding groove is formed in a position corresponding to the hub; the tail end of the rotating base is an inclined block a; the oblique block a is arranged in the rotary base mounting groove, the rotary base mounting groove is formed in the upper side of the rotary disc, and an arc-shaped oblique block b is arranged on the side, corresponding to the oblique block a, of the rotary base mounting groove; gears matched with the gear structures of the rotating base are arranged on the inner sides of the top and the bottom of the rotating base mounting groove; the rotary disk is arranged at the lower side of the hub, an annular T-shaped chute is arranged at the lower side of the hub, and a fixing bolt is clamped and installed in the T-shaped chute; the top of the fixing bolt is connected in a clamping manner in the T-shaped chute, and the bottom of the fixing bolt extends to the lower side of the rotary disk.

As still further aspects of the utility model: the filter screen adopts an aluminum-based honeycomb photocatalyst filter screen.

As still further aspects of the utility model: a conical groove is formed in the middle of the hub, and an output shaft is mounted in the conical groove in a clamping manner; the bottom of the conical groove is provided with a locking nut; the locking nut is arranged inside the hub in a clamping way, and is in sliding connection with the hub; the locking nut is in threaded connection with the output shaft.

As still further aspects of the utility model: the output shaft is connected with an anti-slip nut in a threaded manner.

As still further aspects of the utility model: the outer side of the blade is provided with a sawtooth silencing groove, and sawtooth silencing grooves on the blade sequentially become smaller from the blade top to the blade root.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the electret electrostatic synthetic fiber filter screen or the aluminum-based honeycomb photocatalyst filter screen is arranged on the peripheral side surface of the position, close to the hub, of the fairing in a surrounding manner, so that the sucked air flow is filtered in advance, dust impurities and the like in the air flow are filtered, the filtering efficiency is high, the wind resistance is small, the abrasion of blades can be effectively slowed down, the service life of a fan impeller is prolonged, and the running stability of a motor arranged in an air duct is facilitated;

2. the sawtooth silencing groove can eliminate the influence of the fan blade wake on the main air flow, and can effectively reduce noise.

3. According to the utility model, the output shaft can move upwards through the rotation of the locking nut, so that the hub is fixed on the output shaft, and the installation and the disassembly are convenient.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a bottom view of an impeller.

Fig. 2 is a schematic cross-sectional view of the impeller after installation.

Fig. 3 is a schematic front view of the installation of the filter screen and the hub in the impeller.

Fig. 4 is a schematic view of the structure of the blades in the impeller.

In the figure: hub 1, fixing bolt 2, blade 3, sawtooth amortization groove 301, mounting plate 4, rotating base 5, slider 6, blade mounting groove 7, blade compression screw 8, gear structure 9, circular spout 10, sloping block a11, output shaft 12, output shaft mounting groove 13, lock nut 14, anti-slip nut 15, rotating base mounting groove 16, sloping block b17, rotating disk 18, fairing 19, filter screen 20.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1 to 4, in an embodiment of the present utility model, an impeller includes a hub 1; the outer side of the hub 1 is provided with a blade rotating mechanism at equal included angles, and the blade rotating mechanism is provided with a blade 3 in a clamping way; a fairing 19 is arranged on one side of the hub 1 close to the air inlet; the fairing 19 is fixedly connected with the hub 1 through screws (not shown); the filter screen 20 is in a ring shape matched with the fairing 19 and the air duct, the inner frame of the filter screen 20 is fixed on the peripheral side surface of the fairing 19 near the hub 1 through screws (not shown), the outer frame of the fairing 19 is in clearance fit with the inner side wall of the air duct, the disassembly and the assembly are simple, and the filter screen 20 is convenient to replace; the inner frame and the outer frame are both preferably aluminum alloy frames with light weight, corrosion resistance and good processing formability.

Preferably, the filter screen 20 is an electret electrostatic synthetic fiber filter screen, and the coulomb force of the charged fibers is utilized to capture particles such as dust and impurities in the airflow, so that the filter screen has high filtering efficiency, small wind resistance and low price.

Specifically, the blade rotating mechanism comprises a rotating base 5; the rotary base 5 is cylindrical, and a blade mounting groove 7 is formed in the front end of the rotary base 5; the blade mounting groove 7 is internally provided with a mounting plate 4 in a clamping manner; the mounting plate 4 is fixedly mounted in the blade mounting groove 7 through the blade compression screw 8, the mounting plate 4 can be fixedly mounted in the blade mounting groove 7 through the blade compression screw 8, the rotating base 5 is clamped and mounted on the side wall of the hub 1, the side wall of the rotating base 5 is provided with the sliding block 6, and a circular sliding groove 10 is formed in a position corresponding to the hub 1; the tail end of the rotating base 5 is an inclined block a11; the inclined block a11 is arranged in the rotary base mounting groove 16, the rotary base mounting groove 16 is formed in the upper side of the rotary disc 18, and an arc-shaped inclined block b17 is arranged on the side, corresponding to the inclined block a11, of the rotary base mounting groove 16; gears matched with the gear structure 9 of the rotating base 5 are arranged on the inner sides of the top and the bottom of the rotating base mounting groove 16; the rotary disk 18 is arranged on the lower side of the hub 1, an annular T-shaped chute is arranged on the lower side of the hub 1, and a fixing bolt 2 is clamped and installed in the T-shaped chute; the top of the fixed bolt 2 is clamped and installed in the T-shaped chute, and the bottom of the fixed bolt 2 extends to the lower side of the rotary disk 18; the rotary disk 18 is moved upwards by rotating the fixing bolt 2 clockwise, so that the rotary disk 18 is fixed, and meanwhile, when the rotary disk 18 moves upwards, the bottom gear of the rotary base mounting groove 16 is meshed with the gear structure 9 of the rotary base 5, so that the limit of the blade angle is realized, and the inclined block b17 applies pressure to the inclined block a11 along with the continuous upward movement of the rotary disk 18, and at the moment, the rotary base 5 can be fixed under the action of the sliding block 6 and the circular sliding groove 10; when the angle of the blades needs to be adjusted, the fixing bolt 2 only needs to be rotated clockwise, so that the top gear of the rotary disk 18 is meshed with the gear structure 9 of the rotary base 5, then the rotary disk 18 is rotated, and the rotary disk 18 drives the rotary base 5 to rotate, so that the angle of the blades can be adjusted; when the angle is adjusted to meet the requirement, the fixing bolt 2 is only required to be rotated clockwise, so that the rotating disc 18 moves upwards to fix the angle of the blade.

It should be noted that, the inclined block a11 is preferably a spherical structure, and the distance between the inclined block a11 and the inclined block b17 is slightly larger than the distance between the gear structure 9 and the rotating base mounting groove 16.

Example two

The present embodiment differs from the above embodiment only in that: the filter screen 20 adopts an aluminum-based honeycomb photocatalyst filter screen, has large specific surface area, small wind resistance, aging resistance, long service life, low cost and capability of washing, and can effectively remove harmful gases.

Example III

The present embodiment differs from the above embodiment only in that: a conical groove is formed in the middle of the hub 1, and an output shaft 12 is mounted in the conical groove in a clamping manner; the bottom of the conical groove is provided with a locking nut 14; the locking nut 14 is arranged inside the hub 1 in a clamping way, and the locking nut 14 is connected with the hub 1 in a sliding way; the lock nut 14 is screwed to the output shaft 12, and the output shaft 12 can be moved upward by rotating the lock nut 14, thereby fixing the hub 1 to the output shaft 12.

Further, in order to prevent the lock nut 14 from sliding when the impeller rotates, the output shaft 12 is screwed with a slip-proof nut 15.

Example IV

The present embodiment differs from the above embodiment only in that: the outside of blade 3 is equipped with sawtooth amortization groove 301 the sawtooth amortization groove 301 on the blade 3 diminishes from the top of the blade to the blade root in proper order, and sawtooth amortization groove 301 can eliminate the influence of flabellum 4 wake to the main air current, can effectively reduce noise.

It should be noted that the present utility model is an impeller, the components are all universal standard components or components known to those skilled in the art, and the structures and principles thereof are all known to those skilled in the art through technical manuals or by conventional experimental methods; according to the utility model, the electret electrostatic synthetic fiber filter screen or the aluminum-based honeycomb photocatalyst filter screen is arranged on the peripheral side surface of the position, close to the hub, of the fairing in a surrounding manner, so that inhaled air flow is filtered in advance, dust impurities and the like in the air flow are filtered, the filtering efficiency is high, the wind resistance is small, the abrasion of blades can be effectively slowed down, the service life of a fan impeller is prolonged, and the running stability of a motor arranged in an air duct is facilitated;

according to the utility model, the rotary disk 18 moves upwards by rotating the fixing bolt 2 clockwise, so that the rotary disk 18 is fixed, and meanwhile, when the rotary disk 18 moves upwards, the bottom gear of the rotary base mounting groove 16 is meshed with the gear structure 9 of the rotary base 5, so that the limit of the blade angle is realized, and the inclined block b17 applies pressure to the inclined block a11 along with the continuous upward movement of the rotary disk 18, and at the moment, the rotary base 5 can be fixed under the action of the sliding block 6 and the circular sliding groove 10; when the angle of the blades needs to be adjusted, the fixing bolt 2 only needs to be rotated clockwise, so that the top gear of the rotary disk 18 is meshed with the gear structure 9 of the rotary base 5, then the rotary disk 18 is rotated, and the rotary disk 18 drives the rotary base 5 to rotate, so that the angle of the blades can be adjusted; when the angle is adjusted to meet the requirement, the fixing bolt 2 is only required to be rotated clockwise, so that the rotating disc 18 moves upwards to fix the angle of the blades, and synchronous adjustment of each blade is realized.

The sawtooth silencing groove 301 can eliminate the influence of the wake of the fan blade 4 on the main air flow, and can effectively reduce noise.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. An impeller, characterized by comprising a hub (1); the outer side of the hub (1) is provided with a blade rotating mechanism at equal included angles, and the blade rotating mechanism is clamped and provided with a blade (3); a fairing (19) is arranged on one side of the hub (1) close to the air inlet; the fairing (19) is fixedly connected with the hub (1) through screws; the filter screen (20) is annular, matched with the fairing (19) and the air duct, the inner frame of the filter screen is fixed on the peripheral side surface of the fairing (19) near the hub (1) through screws, and the outer frame of the fairing (19) is in clearance fit with the inner side wall of the air duct.

2. An impeller according to claim 1, characterized in that the filter (20) is an electret electrostatic synthetic fiber filter.

3. An impeller according to claim 1, characterized in that the blade turning mechanism comprises a swivel base (5); the rotary base (5) is cylindrical, and a blade mounting groove (7) is formed in the front end of the rotary base (5); the blade mounting groove (7) is internally clamped with a mounting plate (4); the mounting plate (4) is fixedly mounted in the blade mounting groove (7) through the blade compression screw (8), the rotating base (5) is mounted on the side wall of the hub (1) in a clamping manner, the side wall of the rotating base (5) is provided with the sliding block (6), and a circular sliding groove (10) is formed in a position corresponding to the hub (1); the tail end of the rotating base (5) is provided with an inclined block a (11); the oblique block a (11) is arranged in the rotary base mounting groove (16), the rotary base mounting groove (16) is formed in the upper side of the rotary disc (18), and an arc-shaped oblique block b (17) is arranged on the side, corresponding to the oblique block a (11), of the rotary base mounting groove (16); gears matched with the gear structures (9) of the rotating base (5) are arranged on the inner sides of the top and the bottom of the rotating base mounting groove (16); the rotary disk (18) is arranged at the lower side of the hub (1), an annular T-shaped chute is arranged at the lower side of the hub (1), and a fixing bolt (2) is clamped and installed in the T-shaped chute; the top of the fixing bolt (2) is clamped and installed in the T-shaped chute, and the bottom of the fixing bolt (2) extends to the lower side of the rotary disc (18).

4. An impeller according to claim 1, wherein the filter (20) is an aluminium-based honeycomb photocatalyst filter.

5. An impeller according to claim 1, characterized in that a conical groove is arranged in the middle of the hub (1), and an output shaft (12) is arranged in the conical groove in a clamping manner; the bottom of the conical groove is provided with a locking nut (14); the locking nut (14) is arranged inside the hub (1) in a clamping way, and the locking nut (14) is in sliding connection with the hub (1); the locking nut (14) is in threaded connection with the output shaft (12).

6. An impeller according to claim 5, characterized in that the output shaft (12) is screwed with a slip nut (15).

7. An impeller according to claim 1, characterized in that the blade (3) is provided with saw-tooth noise reduction grooves (301) on the blade (3) outside thereof, which grooves (301) decrease in sequence from the tip to the root.