CN214577820U

CN214577820U - Double-suction fan blade centrifugal ventilator with good environment-friendly noise reduction effect

Info

Publication number: CN214577820U
Application number: CN202120367710.3U
Authority: CN
Inventors: 李卫华; 张亚飞; 李晓楠; 张长兴; 李庆国
Original assignee: Henan Lianghao Storage Equipment Technology Co ltd
Current assignee: Henan Lianghao Storage Equipment Technology Co ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-11-02
Anticipated expiration: 2031-02-08

Abstract

The utility model discloses a double suction fan blade centrifugal fan that environmental protection noise reduction effect is good, inhale shock-absorbing backing plate, drive box, buffering support, installation extension board, drive plate, driven plate, drive belt, bull stick one, sealed bearing, rotation extension board, flabellum and wind-guiding hole including fan spiral case, rubber, be equipped with the shock-absorbing rubber piece of cooperation fan spiral case on the inside bottom surface of buffering support, fan spiral case front and back side outer wall lower extreme both sides all are equipped with the shock attenuation extension board, the shock attenuation extension board is equipped with damping spring with the position between the buffering support bottom surface, fan spiral case opening part is equipped with dust screen one, dust screen one upper end is equipped with the hush pipe, the inside baffler who is equipped with three upper and lower evenly distributed of amortization pipe, be equipped with the trompil of crisscross distribution each other on the baffler, be equipped with the acoustic deflector on the drive box inner wall. Compared with the prior art, the utility model the advantage lie in: adopt two suction ports wind-guiding, wind-guiding efficient and noise reduction effect good.

Description

Double-suction fan blade centrifugal ventilator with good environment-friendly noise reduction effect

Technical Field

The utility model relates to a centrifugal fan technical field specifically indicates a double suction fan blade centrifugal fan that environmental protection noise reduction effect is good.

Background

The centrifugal fan is a machine which improves gas pressure and discharges gas by means of input mechanical energy, is a driven fluid machine and is widely applied to ventilation equipment.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above-mentioned defect, provide an adopt double suction wind gap wind-guiding, wind-guiding efficient and the good double suction fan blade centrifugal fan of environmental protection noise reduction effect that noise reduction effect is good.

In order to solve the technical problem, the utility model provides a technical scheme does: a double-suction fan blade centrifugal ventilator with good environment-friendly and noise-reducing effects comprises a fan volute, wherein an air outlet structure is arranged at the upper end of one side of the fan volute, a rubber shock-absorbing base plate is arranged on the inner wall of the fan volute, a driving box is arranged at the upper end of the outer portion of the fan volute, a buffering support is arranged at the lower end of the fan volute, a buffering groove structure with an upward opening is arranged in the buffering support, mounting support plates which are symmetrically distributed front and back are arranged in the fan volute, a circular driving plate is arranged at the middle position in the driving box, a driven plate which is matched with the driving plate is arranged at the middle position in the mounting support plates, a driving belt is wound on the driving plate and the driven plate, a first rotating rod is fixedly arranged at the center of the front end and the rear end of the driven plate, a sealing bearing which is matched with the first rotating rod is arranged in the mounting support plates, the other end of the first rotating rod, which is connected with the driven plate, is fixedly inserted in an inner ring of the sealing bearing and extends to one side of the mounting support plates, the fan volute is characterized in that a rotating support plate is fixedly arranged at the other end of the rotating rod I, which is connected with a driven plate, a plurality of fan blades which are uniformly distributed are arranged on the rotating support plate from top to bottom, wind guide holes which are matched with the fan blades are formed in two side walls of the fan volute, a shock absorption rubber block which is matched with the fan volute is arranged on the bottom surface of the interior of the buffering support, shock absorption support plates are arranged on two sides of the lower end of the outer wall of the front side and the rear side of the fan volute respectively, shock absorption springs are arranged at positions between the shock absorption support plates and the bottom surface of the buffering support, a first dust filter is arranged at the opening of the fan volute, a silencing pipe is arranged at the upper end of the first dust filter, three barrier plates which are uniformly distributed from top to bottom are arranged in the silencing pipe, wind guide holes which are distributed in a staggered mode are formed in the barrier plates, and a sound insulation plate is arranged on the inner wall of the driving box.

Compared with the prior art, the utility model the advantage lie in: compared with the prior art, the utility model discloses a set up two sets of flabellums of wind-guiding mouth cooperation and carry out the wind-guiding and handle, promoted centrifugal fan's wind-guiding efficiency greatly, in addition, the utility model discloses set up the buffering support to set up rubber and inhale the noise that the shake backing plate reduced vibrations in a large number and produced on fan spiral case inner wall, set up the pipe that disappears at the air outlet simultaneously and handle the noise problem, mutually support and promoted the ability of making an uproar of falling, the effect of guaranteeing to fall the noise is stable effective.

As an improvement, a motor is fixedly arranged on the rear wall of the drive box, the rotating end of the front end of the motor is fixedly connected with the circle center of the rear end of the drive plate, a second rotating rod is fixedly arranged at the circle center of the front end of the drive plate, a bearing is arranged on the front wall of the drive box, and the front end of the second rotating rod is fixedly inserted into an inner ring of the bearing.

As an improvement, L-shaped connecting plates are fixedly arranged on two sides of the upper end of the front side wall and the rear side wall of the buffer support, a connecting slide block is arranged at one end, close to the fan volute, of the top surface of each connecting plate, and sliding grooves which are sleeved with the connecting slide blocks are arranged on two sides of the front wall and the rear wall of the fan volute.

As an improvement, a dust filtering net II is arranged inside the air guide hole.

As an improvement, the other end of the rotating support plate connected with the first rotating rod is provided with a conical air guide block.

Drawings

Fig. 1 is the utility model discloses a double suction fan blade centrifugal fan's that environmental protection noise reduction effect is good structure schematic diagram.

Fig. 2 is the utility model discloses a double suction fan blade centrifugal fan's that environmental protection noise reduction effect is good right side looks sectional view.

As shown in the figure: 1. the fan volute casing comprises a fan volute casing body, 2, a driving box, 3, a buffering support, 4, an installation support plate, 5, a driving plate, 6, a driven plate, 7, a transmission belt, 8, a first rotating rod, 9, a sealing bearing, 10, a rotating support plate, 11, fan blades, 12, an air guide hole, 13, a shock-absorbing rubber block, 14, a shock-absorbing support plate, 15, a shock-absorbing spring, 16, a first dust-filtering net, 17, a silencing pipe, 18, a baffle plate, 19, an air guide hole, 20, a sound insulation plate, 21, a motor, 22, a second rotating rod, 23, a bearing, 24, a connecting plate, 25, a sliding block, 26, a sliding groove, 27, a second dust-filtering net, 28, an air guide block, 29 and a rubber shock-absorbing base plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

With reference to the attached drawing 1, the double-suction fan blade centrifugal fan with good environment-friendly and noise-reducing effects comprises a fan volute 1, an air outlet structure is arranged at the upper end of one side of the fan volute 1, a rubber shock-absorbing base plate 29 is arranged on the inner wall of the fan volute 1, a driving box 2 is arranged at the upper end of the outer portion of the fan volute 1, a buffer support 3 is arranged at the lower end of the fan volute 1, a buffer groove structure with an upward opening is arranged inside the buffer support 3, mounting support plates 4 which are symmetrically distributed front and back are arranged inside the fan volute 1, a circular driving plate 5 is arranged at the middle position inside the driving box 2, a driven plate 6 which is used with the driving plate 5 is arranged at the middle position of the mounting support plates 4, a driving belt 7 is wound on the driving plate 5 and the driven plate 6, a rotating rod I8 is fixedly arranged at the center of the front end and the rear end of the driven plate 6, and a sealing bearing 9 which is used with the rotating rod I8 is arranged inside the mounting support plates 4, the other end of the rotating rod I8 connected with the driven plate 6 is fixedly inserted in the inner ring of the sealing bearing 9 and extends to one side of the mounting support plate 4, the other end of the rotating rod I8 connected with the driven plate 6 is fixedly provided with a rotating support plate 10, a plurality of uniformly distributed fan blades 11 are arranged above and below the rotating support plate 10, two side walls of the fan volute 1 are respectively provided with a wind guide hole 12 matched with the fan blades 11, the bottom surface inside the buffering support 3 is provided with a shock-absorbing rubber block 13 matched with the fan volute 1, two sides of the lower end of the outer wall at the front and rear sides of the fan volute 1 are respectively provided with a shock-absorbing support plate 14, a shock-absorbing spring 15 is arranged between the shock-absorbing support plate 14 and the bottom surface of the buffering support 3, an opening of the fan volute 1 is provided with a dust filter screen I16, the upper end of the dust filter screen I16 is provided with a silencing pipe 17, and three barrier plates 18 uniformly distributed up and down are arranged inside the silencing pipe 17, the baffle plate 18 is provided with air guide holes 19 which are distributed in a mutually staggered manner, and the inner wall of the drive box 2 is provided with a sound insulation plate 20.

The rear wall of the driving box 2 is fixedly provided with a motor 21, the rotating end of the front end of the motor 21 is fixedly connected with the center of the rear end of the driving plate 5, the center of the front end of the driving plate 5 is fixedly provided with a rotating rod II 22, the front wall of the driving box 2 is provided with a bearing 23, and the front end of the rotating rod II 22 is fixedly inserted into the inner ring of the bearing 23.

The utility model discloses a fan spiral case, including buffer support 3, fan spiral case 1, connecting plate 24 top surface are equipped with link block 25 near the one end of fan spiral case 1, fan spiral case 1 front and back wall both sides all are equipped with the spout 26 that cup joints in link block 25.

And a second dust filter 27 is arranged in the air guide hole 12.

The other end of the rotating support plate 10 connected with the first rotating rod 8 is provided with a conical air guide block 28.

When the utility model is implemented, the motor 21 is started, the motor 21 drives the driving plate 5 to rotate, the driving plate 5 drives the driven plate 6 to rotate through the driving belt 7, the driven plate 6 drives the fan blades 11 to perform rotating air draft, when wind is absorbed into the fan volute 1 and collides with the inner wall of the fan volute, the generated impact can be absorbed by the rubber shock absorption base plate 29, so as to reduce the noise generated by vibration, when the fan runs, the whole fan can vibrate, the shock absorption rubber block 13 arranged in the buffer support 3 can absorb the vibration, and damping spring 15 that sets up also can play certain cushioning effect, alleviates the noise that vibrations produced when guaranteeing that the fan is stable, and the noise that is sent by the air outlet is carried out the separation and is offset each other after launching through the inside baffling board 18 that sets up of muffler 17 at last, and wind is derived from wind-guiding trompil 19 to this function of making an uproar is fallen in the realization.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a double suction fan blade centrifugal fan that environmental protection noise reduction effect is good, includes fan spiral case (1), fan spiral case (1) one side upper end is equipped with the air outlet structure, be equipped with rubber shock absorption backing plate (29) on fan spiral case (1) inner wall, fan spiral case (1) outside upper end is equipped with drive box (2), fan spiral case (1) lower extreme is equipped with buffering support (3), inside buffer slot structure that the opening is ascending, its characterized in that of being equipped with of buffering support (3): the fan volute (1) is internally provided with mounting support plates (4) which are symmetrically distributed in the front and back direction, a circular driving plate (5) is arranged at the middle position inside the driving box (2), a driven plate (6) matched with the driving plate (5) for use is arranged at the middle position inside the mounting support plates (4), a driving belt (7) is wound on the driving plate (5) and the driven plate (6), a rotating rod I (8) is fixedly arranged at the center of a circle at the front end and the rear end of the driven plate (6), a sealing bearing (9) matched with the rotating rod I (8) for use is arranged inside the mounting support plates (4), the rotating rod I (8) is connected with the driven plate (6), the other end of the rotating rod I (8) is fixedly inserted in an inner ring of the sealing bearing (9) and extends to one side of the mounting support plates (4), the other end of the rotating rod I (8) connected with the driven plate (6) is fixedly provided with a rotating support plate (10), and a plurality of fan blades (11) which are uniformly distributed are arranged above and below the rotating support plate (10), the fan volute comprises a fan volute body (1), and is characterized in that air guide holes (12) used in cooperation with fan blades (11) are formed in two side walls of the fan volute body (1), shock-absorbing rubber blocks (13) used in cooperation with the fan volute body (1) are arranged on the bottom surface inside the buffering support (3), shock-absorbing support plates (14) are arranged on two sides of the lower end of the outer wall of the front side and the rear side of the fan volute body (1), shock-absorbing springs (15) are arranged at positions between the shock-absorbing support plates (14) and the bottom surface of the buffering support (3), a dust filtering net I (16) is arranged at an opening of the fan volute body (1), a silencing pipe (17) is arranged at the upper end of the dust filtering net I (16), three barrier plates (18) which are uniformly distributed up and down are arranged inside the silencing pipe (17), air guide holes (19) which are distributed in a staggered mode are formed in the barrier plates (18), and sound insulation plates (20) are arranged on the inner wall of a driving box (2).

2. The double-suction fan blade centrifugal ventilator with good environment-friendly and noise-reducing effects as claimed in claim 1, is characterized in that: the motor (21) is fixedly arranged on the rear wall of the driving box (2), the rotating end of the front end of the motor (21) is fixedly connected with the circle center of the rear end of the driving plate (5), a rotating rod II (22) is fixedly arranged at the circle center of the front end of the driving plate (5), a bearing (23) is arranged on the front wall of the driving box (2), and the front end of the rotating rod II (22) is fixedly inserted into an inner ring of the bearing (23).

3. The double-suction fan blade centrifugal ventilator with good environment-friendly and noise-reducing effects as claimed in claim 1, is characterized in that: both sides of the upper end of the front side wall and the rear side wall of the buffer support (3) are fixedly provided with L-shaped connecting plates (24), one end, close to the fan volute (1), of the top surface of each connecting plate (24) is provided with a connecting slide block (25), and both sides of the front side wall and the rear side wall of the fan volute (1) are provided with sliding grooves (26) which are sleeved on the connecting slide blocks (25).

4. The double-suction fan blade centrifugal ventilator with good environment-friendly and noise-reducing effects as claimed in claim 1, is characterized in that: and a second dust filter (27) is arranged in the air guide hole (12).

5. The double-suction fan blade centrifugal ventilator with good environment-friendly and noise-reducing effects as claimed in claim 1, is characterized in that: the other end of the rotating support plate (10) connected with the first rotating rod (8) is provided with a conical air guide block (28).