CN112343851A

CN112343851A - Low-noise centrifugal ventilator

Info

Publication number: CN112343851A
Application number: CN202011317096.6A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-02-09

Abstract

The invention relates to the technical field of fans, in particular to a low-noise centrifugal fan which comprises a fan body, wherein the bottom of the fan body is fixed through a supporting mechanism, a protective frame is vertically connected to the outer side of one end of the fan body, a lubricating mechanism, a driving mechanism and a filtering mechanism are sequentially arranged in the fan body from left to right, the lubricating mechanism comprises an oil tank horizontally arranged on the outer side above the fan body, and an oil inlet is formed in one side, far away from the fan body, of the oil tank. The driving mechanism is arranged, and under the cooperation of the lubricating mechanism, the ventilator can intermittently add lubricating oil to the rotating shaft during operation, so that the ventilator is prevented from being blocked and affecting the use of the ventilator when being used for a long time, the used lubricating oil can be collected together, the lubricating oil can be conveniently recycled, and the interior of the ventilator body can be kept clean.

Description

Low-noise centrifugal ventilator

Technical Field

The invention relates to the technical field of fans, in particular to a low-noise centrifugal fan.

Background

The centrifugal ventilator is a mechanical device with large quantity and wide range, is widely applied to the industrial fields of energy power, petrochemical industry, metallurgy and the like and various ships in the war industry, and especially plays an extremely important role in various ship ventilation air-conditioning systems. The impeller is a rotating part, the impeller is vibrated by the rotating centrifugal force and airflow force caused by eccentricity, the volute of the fan belongs to a thin-wall container structure, the volute generates large vibration and radiates noise by pressure pulsation formed by interaction of gas flow and the wall surface of the volute, the work and rest of personnel at stations are influenced, the service life of equipment is shortened, and the impeller is easy to block after long-term use, so that the use efficiency of the equipment is influenced.

Disclosure of Invention

The invention aims to solve the defects of high noise and easy blockage in long-term use in the prior art, and provides a low-noise centrifugal ventilator.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: the utility model provides a low noise centrifugal fan, includes the ventilation blower body, the bottom of ventilation blower body is fixed through supporting mechanism, the vertical protection frame that is connected with in the one end outside of ventilation blower body, the inside of ventilation blower body has set gradually lubricating mechanism, actuating mechanism and filtering mechanism from a left side to the right side, lubricating mechanism includes the oil tank of horizontal installation in the ventilation blower body top outside, the oil tank is kept away from the one side of ventilation blower body and has been seted up the oil inlet, the vertical intercommunication in one side that the oil inlet was kept away from to the oil tank has the unloading pipe, the unloading pipe runs through the ventilation blower body and extends to the inside and the tip of ventilation blower body and has seted up the feed opening, the inside collection mechanism with ventilation blower body fixed.

Preferably, the supporting mechanism includes that vertical symmetry rotates two support frames of connection in the ventilation blower body outside, two the shape of support frame all is A style of calligraphy, two the common horizontally connect in below of support frame has the backup pad, one side that the support frame was kept away from to the backup pad is provided with the mechanism of making an uproar, the one end upper surface that the support frame was kept away from to the backup pad is provided with adjustment mechanism.

Preferably, the mechanism of making an uproar includes the bottom plate, the bottom plate is close to the one side of backup pad and has seted up flutedly, the four sides of recess all is provided with the fixture that contacts with the backup pad, fixture includes the mounting panel, the one side horizontally connect who keeps away from the backup pad of mounting panel has three and bottom plate fixed connection's a spring, the one side vertical connection that a spring was kept away from to the mounting panel has the shock pad that contacts with the backup pad.

Preferably, the adjusting mechanism comprises an electric push rod vertically installed on the upper surface of one end of the support frame far away from the support plate, a fixing frame fixedly connected with the support plate is sleeved on the outer side of the electric push rod, a supporting block is horizontally and rotatably connected to the output end of the electric push rod, a rubber pad fixedly connected with the ventilator body is vertically and horizontally connected to one end of the supporting block far away from the electric push rod, and the rubber pad and the supporting block are both arc-shaped.

Preferably, actuating mechanism includes two mounting brackets of vertical cartridge in the inside of ventilation blower body, two the common horizontal cartridge in centre of mounting bracket has the rotating electrical machines, the output horizontally connect with the rotation axis of rotating electrical machines, the outside of rotation axis uses the rotation axis to be connected with a plurality of flabellums as the centre of a circle equidistance, the one end that the flabellum was kept away from to the rotation axis is provided with the link gear who contacts with the ball.

Preferably, the link gear includes the mounting groove of seting up in the rotation axis and keeping away from flabellum one end outside, the internal connection of mounting groove has No. three springs, the one end that the rotation axis was kept away from to No. three springs is connected with the arch with mounting groove looks adaptation.

Preferably, filtering mechanism includes the filter screen two movable grooves have been seted up in the one end outside that the ventilation blower body is close to the filter screen, and the inside in two movable grooves all is connected with No. two springs, two the one end that No. two springs kept away from mutually all is connected with the stopper with movable groove sliding connection, stopper and filter screen sliding connection.

Preferably, the collection mechanism includes the collecting vat, the equal horizontally connect in both ends of collecting vat have with ventilation blower body fixed connection's connecting plate, the vertical intercommunication in bottom of collecting vat has the connecting pipe, the one end that the collecting vat was kept away from to the connecting pipe runs through the ventilation blower body and extends to the outside of ventilation blower body, the ventilation blower body outside threaded connection that the connecting pipe corresponds the position has the collecting vessel.

Compared with the prior art, the invention has the following beneficial effects:

1. by arranging the driving mechanism, under the coordination of the lubricating mechanism, the ventilator can intermittently add lubricating oil to the rotating shaft when running, the ventilator is prevented from being blocked and affecting the use of the ventilator when being used for a long time, and meanwhile, the used lubricating oil can be collected together, so that the lubricating oil can be conveniently recycled, and the interior of the ventilator body can be kept clean;

2. according to the invention, the filtering mechanism is arranged, so that when the ventilator runs, some dust and garbage cannot enter the ventilator body along with wind, the fan blades are prevented from being clamped, the use of the ventilator is influenced, and under the action of the protective frame, the situation that when the ventilator runs, a worker mistakenly plugs hands into the ventilator body can be avoided, the body of the worker is injured, and the safety of the ventilator can be improved;

3. according to the invention, the supporting mechanism is arranged, the angle of the ventilator can be conveniently adjusted according to the requirement under the action of the adjusting mechanism, and the supporting plate does not directly collide with the ground when the ventilator runs under the cooperation of the noise reduction mechanism, so that the noise generated by the ventilator during running can be reduced.

Drawings

Fig. 1 is a schematic structural view of a low-noise centrifugal fan according to the present invention;

FIG. 2 is an isometric view of a low noise centrifugal fan arrangement according to the present invention;

FIG. 3 is a partial sectional view of the low noise centrifugal fan according to the present invention;

FIG. 4 is an exploded view of a portion of a low noise centrifugal fan according to the present invention;

FIG. 5 is an exploded view of a portion of a low noise centrifugal fan according to the present invention;

FIG. 6 is an enlarged schematic view of FIG. 5A according to the present invention;

FIG. 7 is a schematic view of a portion of a low noise centrifugal fan according to the present invention;

fig. 8 is an enlarged schematic view of the structure of fig. 7B according to the present invention.

In the figure: 1. a ventilator body; 2. a support frame; 3. a support plate; 4. an electric push rod; 5. a fixed mount; 6. a support block; 7. a rubber pad; 8. a base plate; 9. a groove; 10. a first spring; 11. mounting a plate; 12. a shock pad; 13. a mounting frame; 14. a rotating electric machine; 15. a rotating shaft; 16. a fan blade; 17. a protective frame; 18. filtering with a screen; 19. a movable groove; 20. a second spring; 21. a limiting block; 22. an oil tank; 23. an oil inlet; 24. a discharging pipe; 25. a feeding port; 26. a ball bearing; 27. mounting grooves; 28. a third spring; 29. a protrusion; 30. a connecting plate; 31. collecting tank; 32. a connecting pipe; 33. and (4) a collecting barrel.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

The low-noise centrifugal ventilator shown in fig. 1-8 comprises a ventilator body 1, the bottom of the ventilator body 1 is fixed by a supporting mechanism, the supporting mechanism comprises two supporting frames 2 vertically and symmetrically connected to the outer side of the ventilator body 1 in a rotating manner, the two supporting frames 2 are both in an a shape, a supporting plate 3 is jointly and horizontally connected below the two supporting frames 2, a noise reduction mechanism is arranged on one side of the supporting plate 3 away from the supporting frames 2, the noise reduction mechanism comprises a bottom plate 8, a groove 9 is formed in one side of the bottom plate 8 close to the supporting plate 3, clamping mechanisms contacted with the supporting plate 3 are arranged on four sides of the groove 9, each clamping mechanism comprises a mounting plate 11, three springs 10 fixedly connected with the bottom plate 8 are horizontally connected to one side of the mounting plate 11 away from the supporting plate 3, and a shock pad 12 contacted with the supporting plate 3 is vertically connected to one, the upper surface of one end, far away from the support frame 2, of the support plate 3 is provided with an adjusting mechanism, the adjusting mechanism comprises an electric push rod 4 which is vertically installed on the upper surface of one end, far away from the support frame 2, of the support plate 3, a fixing frame 5 fixedly connected with the support plate 3 is sleeved on the outer side of the electric push rod 4, the output end of the electric push rod 4 is horizontally and rotatably connected with a support block 6, one end, far away from the electric push rod 4, of the support block 6 is vertically and horizontally connected with a rubber pad 7 fixedly connected with the ventilator body 1; through setting up support frame 2, make ventilation blower body 1 can fix in backup pad 3, through being connected electric putter 4 with external power source, under the cooperation of supporting shoe 6 and rubber pad 7, can adjust ventilation blower body 1's angle, under the effect of mount 5, make electric putter 4 can vertically install in backup pad 3, through setting up bottom plate 8 and recess 9, No. one spring 10, under the mutually supporting of mounting panel 11 and shock pad 12, can fix backup pad 3 on bottom plate 8, make the ventilation blower in the moving time, backup pad 3 can not directly collide with ground, the effect of making an uproar has been played and has been fallen.

The outer side of one end of the ventilator body 1 is vertically connected with a protective frame 17, the interior of the ventilator body 1 is sequentially provided with a lubricating mechanism, a driving mechanism and a filtering mechanism from left to right, the lubricating mechanism comprises an oil tank 22 horizontally arranged on the outer side above the ventilator body 1, one side of the oil tank 22, which is far away from the ventilator body 1, is provided with an oil inlet 23, one side of the oil tank 22, which is far away from the oil inlet 23, is vertically communicated with a blanking pipe 24, the blanking pipe 24 penetrates through the ventilator body 1 and extends to the interior of the ventilator body 1, the end part of the blanking pipe 24 is provided with a blanking port 25, the interior of the ventilator body 1 below the blanking port 25 is provided with a collecting mechanism fixedly connected with the ventilator body 1, the collecting mechanism comprises a collecting tank 31, two ends of the collecting tank 31 are horizontally connected with a connecting plate 30 fixedly connected with the ventilator body 1, the, the outer side of the ventilator body 1 at the position corresponding to the connecting pipe 32 is in threaded connection with a collecting barrel 33; through setting up protection frame 17, can avoid flabellum 16 when the operation, the staff mistake will point and flabellum 16 contact, thereby cause the injury to staff's health, through setting up oil inlet 23, pour lubricating oil into the inside of oil tank 22, under link gear's effect, can promote ball 26 intermittent type's the inside from feed opening 25 to feed pipe 24, thereby make lubricating oil can follow the outside that feed pipe 24 drips rotation axis 15, lubricating oil passes through the outside of rotation axis 15, under the effect of connecting plate 30, drip the inside of collecting tank 31, lubricating oil drips the inside of collecting tank 33 through connecting pipe 32 from the inside of collecting tank 31, be convenient for collect used lubricating oil.

The driving mechanism comprises two mounting frames 13 vertically inserted into the ventilator body 1, a rotating motor 14 is jointly horizontally inserted between the two mounting frames 13, the output end of the rotating motor 14 is horizontally connected with a rotating shaft 15, the outer side of the rotating shaft 15 is equidistantly connected with a plurality of fan blades 16 by taking the rotating shaft 15 as a circle center, one end, far away from the fan blades 16, of the rotating shaft 15 is provided with a linkage mechanism contacted with a ball 26, the linkage mechanism comprises a mounting groove 27 formed in the outer side of one end, far away from the fan blades 16, of the rotating shaft 15, a third spring 28 is connected inside the mounting groove 27, and one end, far away from the rotating shaft 15, of the third spring 28 is; the fan blades 16 are rotated by the rotation shaft 15 by connecting the rotary motor 14 to an external power source, and the protrusion 29 is indirectly contacted with the ball 26 by providing the mounting groove 27 and the third spring 28.

The filtering mechanism comprises a filter screen 18, two movable grooves 19 are formed in the outer side of one end, close to the filter screen 18, of the ventilator body 1, springs 20 are connected inside the two movable grooves 19, limiting blocks 21 connected with the movable grooves 19 in a sliding mode are connected to the ends, far away from the springs 20, of the two springs 20, and the limiting blocks 21 are connected with the filter screen 18 in a sliding mode; through setting up activity groove 19 and No. two springs 20, under the effect of stopper 21, convenient to detach and installation filter screen 18 for the ventilation blower is in the operation, can not have the inside that the dust got into ventilation blower body 1.

The working principle is as follows: by arranging the driving mechanism, the lubricating oil can be automatically added when the ventilator runs under the coordination of the lubricating mechanism, the ventilator is prevented from being blocked when working, meanwhile, the used lubricating oil can be collected, the cleanness inside the ventilator body 1 is convenient to keep, and the use efficiency of the ventilator is prevented from being influenced, by arranging the filtering mechanism, dust and garbage can be prevented from being brought into the ventilator body 1 when the ventilator runs, so that the ventilator is blocked, the use of the ventilator is influenced, and under the action of the protecting mechanism, a worker can be prevented from mistakenly plugging hands into the running ventilator, so that the body of the worker is injured, by arranging the supporting mechanism, the angle of the ventilator body 1 can be adjusted according to needs, under the coordination of the noise reduction mechanism, the ventilator can be prevented from running, the support plate 3 directly collides with the ground to make a sound.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a low noise centrifugal fan, includes ventilation blower body (1), the bottom of ventilation blower body (1) is fixed through supporting mechanism, a serial communication port, the vertical protection frame (17) that is connected with in the one end outside of ventilation blower body (1), the inside of ventilation blower body (1) has set gradually lubricating mechanism, actuating mechanism and filtering mechanism from a left side to the right side, lubricating mechanism includes oil tank (22) of horizontal installation in ventilation blower body (1) top outside, oil tank (22) are kept away from the one side of ventilation blower body (1) and have been seted up oil inlet (23), the vertical intercommunication in one side of oil inlet (23) is kept away from in oil tank (22) has unloading pipe (24), unloading pipe (24) run through ventilation blower body (1) and extend to the inside and the tip of ventilation blower body (1) and seted up feed opening (25), ventilation blower body (1) inside below feed opening (25) is provided with fixed with ventilation blower body (1 A collection mechanism connected.

2. A low-noise centrifugal ventilator according to claim 1, wherein the supporting mechanism comprises two supporting frames (2) which are vertically and symmetrically connected to the outer side of the ventilator body (1) in a rotating manner, the two supporting frames (2) are both in an a shape, a supporting plate (3) is jointly and horizontally connected to the lower portions of the two supporting frames (2), a noise reduction mechanism is arranged on one side of the supporting plate (3) far away from the supporting frames (2), and an adjusting mechanism is arranged on the upper surface of one end of the supporting plate (3) far away from the supporting frames (2).

3. A low noise centrifugal fan according to claim 2, characterized in that the noise reduction mechanism comprises a bottom plate (8), a groove (9) is formed in one surface of the bottom plate (8) close to the support plate (3), clamping mechanisms in contact with the support plate (3) are arranged on four surfaces of the groove (9), each clamping mechanism comprises a mounting plate (11), three springs (10) fixedly connected with the bottom plate (8) are horizontally connected to one surface of the mounting plate (11) far away from the support plate (3), and a damping pad (12) in contact with the support plate (3) is vertically connected to one surface of the mounting plate (11) far away from the springs (10).

4. The low-noise centrifugal ventilator according to claim 2, wherein the adjusting mechanism comprises an electric push rod (4) vertically installed on the upper surface of one end of the support plate (3) far away from the support frame (2), a fixing frame (5) fixedly connected with the support plate (3) is sleeved on the outer side of the electric push rod (4), a support block (6) is horizontally and rotatably connected to the output end of the electric push rod (4), a rubber pad (7) fixedly connected with the ventilator body (1) is vertically and horizontally connected to one end of the support block (6) far away from the electric push rod (4), and the rubber pad (7) and the support block (6) are both arc-shaped.

5. A low-noise centrifugal ventilator according to claim 1, wherein the driving mechanism comprises two mounting frames (13) vertically inserted into the ventilator body (1), a rotating motor (14) is horizontally inserted between the two mounting frames (13), the output end of the rotating motor (14) is horizontally connected with a rotating shaft (15), a plurality of fan blades (16) are equidistantly connected to the outer side of the rotating shaft (15) by taking the rotating shaft (15) as a circle center, and a linkage mechanism contacting with the balls (26) is arranged at one end of the rotating shaft (15) far away from the fan blades (16).

6. A low noise centrifugal fan according to claim 5, wherein the linkage mechanism comprises a mounting groove (27) formed outside an end of the rotating shaft (15) far away from the fan blades (16), a third spring (28) is connected inside the mounting groove (27), and a protrusion (29) matched with the mounting groove (27) is connected to an end of the third spring (28) far away from the rotating shaft (15).

7. The low-noise centrifugal ventilator according to claim 1, wherein the filtering mechanism comprises a filter screen (18), two movable grooves (19) are formed in the outer side of one end, close to the filter screen (18), of the ventilator body (1), two springs (20) are connected to the inner portions of the two movable grooves (19), one ends, far away from the two springs (20), of the two springs (20) are connected with limiting blocks (21) which are connected with the movable grooves (19) in a sliding mode, and the limiting blocks (21) are connected with the filter screen (18) in a sliding mode.

8. A low-noise centrifugal ventilator according to claim 7, wherein the collection mechanism comprises a collection groove (31), two ends of the collection groove (31) are horizontally connected with connecting plates (30) fixedly connected with the ventilator body (1), the bottom of the collection groove (31) is vertically communicated with a connecting pipe (32), one end of the connecting pipe (32) far away from the collection groove (31) penetrates through the ventilator body (1) and extends to the outer side of the ventilator body (1), and a collection barrel (33) is screwed on the outer side of the ventilator body (1) corresponding to the connecting pipe (32).