CN214063330U

CN214063330U - Large-scale hollow low-noise axial flow fan blade

Info

Publication number: CN214063330U
Application number: CN202022905912.7U
Authority: CN
Inventors: 魏敏哲
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-08-27
Anticipated expiration: 2030-12-07

Abstract

The utility model discloses a large hollow low-noise axial flow fan blade, which comprises a plurality of blades and a hub, the hub is provided with a plurality of mounting holes matched with the blades for mounting, the bottom of each blade is provided with an adjusting device, the adjusting device comprises a connecting rod and an adjusting rod, a rubber layer is arranged at the top of the adjusting rod, a rotating column is vertically arranged in the middle of the top of the adjusting rod, a fixed rod is vertically arranged on one side of the top of the adjusting rod close to the top, one end of the fixed rod close to the top is provided with a threaded hole in which a bolt is arranged, the adjusting rod is provided with a first through hole, the connecting groove is arranged in the middle of the connecting rod, the connecting rod is served at the equidistant a plurality of second through-holes that are provided with near the bottom, the equidistant a plurality of third through-holes that are provided with in bottom of connecting rod. The utility model discloses an adjusting device, the angle to the blade that can be convenient is adjusted, has improved the availability factor.

Description

Large-scale hollow low-noise axial flow fan blade

Technical Field

The utility model relates to an axial fan technical field specifically is a large-scale cavity formula low noise axial fan blade.

Background

The fan is a ventilation device, the axial flow fan is an important and large-volume fan, and the axial flow fan is widely used in the industries of coal mines, tunnels, chemical engineering, energy, textiles and the like to play a role in ventilation and dust removal.

However, the conventional large hollow low-noise axial flow fan blade has the following problems in the use process: (1) the angle of the general blade cannot be adjusted after the installation is finished, so that the angle adjustment of the blade is difficult; (2) the blade is fixed to the hub by welding or riveting, which makes the installation more complicated. For this reason, a corresponding technical scheme needs to be designed to solve the existing technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a large-scale cavity formula low noise axial fan blade has solved because of the angle of general blade can't adjust the comparatively difficult technical problem of blade angular adjustment that leads to after the installation is accomplished, satisfies the in-service use demand.

In order to achieve the above object, the utility model provides a following technical scheme: including a plurality of blades and wheel hub, the last mounting hole that is provided with a plurality of cooperation blade installations that is provided with of wheel hub, the bottom of blade is provided with adjusting device, adjusting device includes connecting rod and regulation pole, the top of adjusting the pole is provided with the rubber layer, be provided with the column spinner perpendicularly in the middle of the top of adjusting the pole, the top of adjusting the pole is close to one side at top and is provided with the dead lever perpendicularly, the dead lever is serving near the top and is provided with the screw hole, threaded hole is provided with the bolt, be provided with first through-hole on the regulation pole, the centre inside spread groove that is provided with of connecting rod, the connecting rod is serving equidistant a plurality of second through-holes that are provided with near the bottom, the.

As an optimal implementation mode of the utility model, be provided with installation device in adjusting pole and the wheel hub between, installation device includes fixed box and inserts the post, it is provided with the spacing ring on the post to insert, the one end of inserting the post is provided with the screw cap, the centre of fixed box is provided with the fixed orifices perpendicularly, fixed box is provided with the movable hole in being close to bottom one side, be provided with solid fixed ring in the movable hole, the movable hole is served at one the same with the screw cap and is provided with the screw thread mouth, it is provided with the spring to insert the post on the part between spacing ring and solid fixed ring.

As an optimal implementation mode of the utility model, the one end that fixed box is connected with wheel hub is circular-arc structure, it is located the movable hole to insert the post, the fixed orifices is the same with the mounting hole in same water flat line and size, the screw thread mouth is located the outside of fixed box and is connected with the screw cap.

As a preferred embodiment of the present invention, the blades are distributed on the hub in an inclined manner and at equal intervals.

As a preferred embodiment of the utility model, the connecting rod is the same with the mounting hole size, the connecting rod is located the bottom of blade and is welded connection, it is the same with the connecting rod to adjust the bottom and the circle diameter that the pole is located the connecting rod, the column spinner is located the spread groove, the dead lever is located the third through-hole, screw hole and second through-hole are located same water flat line, the third through-hole communicates with each other with the second through-hole.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. through adjusting device, can be convenient with the angle and the retrograde motion regulation of blade, after the blade passes through installation device and fixes, when needs carry out angle modulation, earlier shift out in inserting the post from first through-hole, shift out the blade from the fixed orifices after that, shift out the bolt from the threaded hole afterwards, and will adjust the pole downstream, make the dead lever shift out from the third through-hole, and rotatory regulation pole, make the dead lever insert in the third through-hole of different positions, and then can adjust the angle of blade, need not to change whole blade group, and the service efficiency is improved, thereby the problem that blade angle modulation is comparatively difficult has been solved.

2. Through the installation device, can be convenient install fixedly to the blade, insert mounting hole and fixed orifices in proper order with the adjusting device of blade bottom, align first through-hole and movable orifices after that, in inserting the post and inserting first through-hole after that to it is fixed to be connected screw cap and screw thread mouth, and then can fix the blade in fixed box, improved the efficiency of installation, thereby solved the problem that the installation is comparatively troublesome.

Drawings

Fig. 1 is an overall schematic view of the present invention;

fig. 2 is a side view of the wheel hub of the present invention;

FIG. 3 is a schematic view of the blade structure of the present invention;

FIG. 4 is a structural diagram of the adjusting device of the present invention;

FIG. 5 is a structure view of the fixing rod of the present invention;

FIG. 6 is a bottom structure view of the connecting rod of the present invention;

fig. 7 is a structure view of the installation device of the present invention.

In the figure, a blade-1, a mounting device-2, a hub-3, an adjusting device-4, a connecting rod-5, a second through hole-6, a rubber layer-7, an adjusting rod-8, a fixed rod-9, a connecting groove-10, a rotating column-11, a threaded hole-12, a bolt-13, a first through hole-14, a fixed hole-15, a movable hole-16, a threaded cap-17, a threaded opening-18, a fixed ring-19, a spring-20, a limiting ring-21, an inserting column-22, a mounting hole-23, a fixed box-24 and a third through hole-25.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a large hollow low noise axial flow fan blade comprising: the blade comprises a plurality of blades 1 and a hub 3, wherein the hub 3 is provided with a plurality of mounting holes 23 matched with the blades 1 for mounting, the bottom of each blade 1 is provided with an adjusting device 4, each adjusting device 4 comprises a connecting rod 5 and an adjusting rod 8, the top of each adjusting rod 8 is provided with a rubber layer 7, the middle of the top of each adjusting rod 8 is vertically provided with a rotating column 11, one side of the top of each adjusting rod 8, which is close to the top, is vertically provided with a fixed rod 9, one end, close to the top, of each fixed rod 9 is provided with a threaded hole 12, a bolt 13 is arranged in each threaded hole 12, each adjusting rod 8 is provided with a first through hole 14, the middle of each connecting rod 5 is internally provided with a connecting groove 10, one end, close to the bottom, of each connecting rod 5 is provided with a plurality of second through holes 6 at equal intervals, the bottom of each connecting rod 5 is provided with a plurality of third through holes 25 at equal intervals, the blades 1 are distributed on the hub 3 at equal intervals, and the connecting rods 5 are the same as the mounting holes 23, connecting rod 5 is located the bottom of blade 1 and for welded connection, adjusts the bottom that pole 8 is located connecting rod 5 and circle diameter the same with connecting rod 5, and column spinner 11 is located spread groove 10, and dead lever 9 is located third through hole 25, and screw hole 12 is in same water flat line with second through hole 6, and third through hole 25 communicates with each other with second through hole 6, through adjusting device 4, can be convenient adjust the angle of blade 1, has improved the availability factor.

Further improved, as shown in fig. 7: the mounting device 2 is arranged between the adjusting rod 8 and the inside of the hub 3, the mounting device 2 comprises a fixed box 24 and an insert column 22, a limit ring 21 is arranged on the insert column 22, a threaded cap 17 is arranged at one end of the insert column 22, a fixed hole 15 is vertically arranged in the middle of the fixed box 24, a movable hole 16 is arranged in one side close to the bottom of the fixed box 24, a fixed ring 19 is arranged in the movable hole 16, a threaded opening 18 is arranged at the same end of the movable hole 16 as the threaded cap 17, a spring 20 is arranged at the part of the insert column 22 between the limit ring 21 and the fixed ring 19, one end of the fixed box 24 connected with the hub 3 is of an arc-shaped structure, the insert column 22 is positioned in the movable hole 16, the fixed hole 15 and the mounting hole 23 are positioned on the same horizontal line and have the same size as the mounting hole 23, the threaded opening 18 is positioned outside the fixed box 24 and connected with the threaded cap 17, and the blade 1 can be conveniently mounted and fixed through the mounting device 2, the installation efficiency is improved.

When in use: before the installation of the utility model, firstly, the angle of the blade 1 is adjusted through the adjusting device 4, the bolt 13 is firstly moved out from the threaded hole 12, then the adjusting rod 8 is moved downwards, the fixing rod 8 is moved out from the third through hole 25, the blade 1 is rotated, the fixing rod 8 is aligned to the third through holes 25 at different positions, and the adjusting rod 8 is moved in the same phase again, the fixing rod 8 is inserted into the third through hole 25 again, the bolt 13 is connected with the threaded hole 12 through the second through hole 6, and then the angle adjustment of the blade 1 can be completed, the use efficiency is improved, after the adjustment is completed, the adjusting device 4 at the bottom of the blade 1 is inserted into the mounting hole 23 and is further inserted into the fixing hole 15, and the first through hole 14 is aligned to the movable hole 16, then the inserting column 22 is inserted into the first through hole 14, the threaded cap 17 is connected with the threaded port 18, and then the blade 1 can be fixedly connected with the hub 3, the efficiency of installation is improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a large-scale cavity formula low noise axial fan blade which characterized in that: the blade adjusting device comprises a plurality of blades (1) and a hub (3), wherein a plurality of mounting holes (23) matched with the blades (1) for installation are formed in the hub (3), an adjusting device (4) is arranged at the bottom of each blade (1), the adjusting device (4) comprises a connecting rod (5) and an adjusting rod (8), a rubber layer (7) is arranged at the top of each adjusting rod (8), a rotary column (11) is vertically arranged in the middle of the top of each adjusting rod (8), a fixing rod (9) is vertically arranged on one side, close to the top, of the top of each adjusting rod (8), a threaded hole (12) is formed in one end, close to the top, of each fixing rod (9), a bolt (13) is arranged in each threaded hole (12), a first through hole (14) is formed in each adjusting rod (8), a connecting groove (10) is formed in the middle inner portion of each connecting rod (5), a plurality of second through holes (6) are formed in one end, close to the bottom, at equal intervals in each connecting rod (5), and a plurality of third through holes (25) are formed in the bottom of the connecting rod (5) at equal intervals.

2. The large hollow low noise axial flow fan blade according to claim 1, wherein: adjusting pole (8) and wheel hub (3) in between be provided with installation device (2), installation device (2) are including fixed box (24) and insert post (22), it is provided with spacing ring (21) to insert on post (22), the one end of inserting post (22) is provided with screw cap (17), the centre of fixed box (24) is provided with fixed orifices (15) perpendicularly, fixed box (24) are provided with movable hole (16) being close to bottom one side, be provided with solid fixed ring (19) in movable hole (16), movable hole (16) are provided with screw thread mouth (18) in one end the same with screw cap (17), it is provided with spring (20) on the part of post (22) between spacing ring (21) and solid fixed ring (19).

3. The large hollow low noise axial flow fan blade of claim 2, wherein: the one end that fixed box (24) and wheel hub (3) are connected is circular-arc structure, insert post (22) and be located activity hole (16), fixed orifices (15) are in same water flat line and the size is the same with mounting hole (23), screw thread mouth (18) are located the outside of fixed box (24) and are connected with screw cap (17).

4. The large hollow low noise axial flow fan blade of claim 3, wherein: the blades (1) are distributed on the hub (3) in an inclined shape at equal intervals.

5. The large hollow low noise axial flow fan blade according to claim 1, wherein: connecting rod (5) are the same with mounting hole (23) size, connecting rod (5) are located the bottom of blade (1) and are welded connection, it is the same with connecting rod (5) to adjust the bottom and the circle diameter that pole (8) are located connecting rod (5), column spinner (11) are located spread groove (10), dead lever (9) are located third through-hole (25), screw hole (12) are in same water flat line with second through-hole (6), third through-hole (25) communicate with each other with second through-hole (6).