CN219953691U

CN219953691U - Centrifugal ventilator with double air inlets

Info

Publication number: CN219953691U
Application number: CN202320454710.6U
Authority: CN
Inventors: 谢永攀
Original assignee: Huanggang Tianyuan Technology Co ltd
Current assignee: Huanggang Tianyuan Technology Co ltd
Priority date: 2023-03-11
Filing date: 2023-03-11
Publication date: 2023-11-03
Anticipated expiration: 2033-03-11

Abstract

The utility model discloses a centrifugal ventilator with double air inlets, which comprises a ventilator body, wherein air inlets are arranged on two opposite side walls of the ventilator body, impellers are arranged at the air inlets, a supporting frame for supporting the ventilator body is arranged on the outer side of the ventilator body, a base for supporting and bearing a device is arranged at the bottom of the supporting frame, a driving mechanism is arranged on the base and comprises a driving motor for driving a pair of impellers to rotate simultaneously, and air outlets are communicated with the ventilator body.

Description

Centrifugal ventilator with double air inlets

Technical Field

The utility model relates to the technical field of centrifugal ventilators, in particular to a double-air-inlet centrifugal ventilator.

Background

The ventilator is a driven fluid machine which is used for increasing the pressure of gas and exhausting the gas by means of the input mechanical energy, and is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and air induction of boilers and industrial furnaces, cooling and ventilation in air conditioning equipment and household electrical appliances, drying and selection of grains, inflation and propulsion of wind tunnel wind sources and air cushion ships and the like; in order to increase the air intake, a double-air intake ventilator appears on the market, so that the ventilation efficiency can be greatly improved;

however, the existing double-air-inlet centrifugal ventilator is usually assembled by two single-air-inlet centrifugal ventilators, and is driven by a double-shaft motor at the same time, so that the assembled double-air-inlet centrifugal ventilator occupies a large space and is often high in cost, the directions of the two air inlets are arranged oppositely, and the orientation of the two air inlets cannot be set according to specific requirements;

therefore, we design a centrifugal ventilator with double air inlets.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, a double-air-inlet centrifugal ventilator occupies a large space and is high in manufacturing cost, the two air inlets are oppositely arranged, and the two air inlets cannot be regulated according to specific requirements.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a double air intake centrifugal fan, includes the organism, be equipped with the air intake on the opposite both sides wall of organism, air intake department is equipped with the impeller, the organism outside is equipped with the support frame that is used for supporting the organism, the support frame bottom is equipped with the base that is used for supporting and bears the weight of the device, be equipped with actuating mechanism on the base, actuating mechanism is including being used for driving a pair of impeller pivoted driving motor simultaneously, the intercommunication is equipped with the air outlet on the organism.

Preferably, a gap is reserved between a pair of impellers, a baffle is arranged between a pair of impellers, the baffle is annular, and rectangular holes are formed in the baffle.

Preferably, the rectangular hole is communicated with the air outlet direction of the air outlet.

Preferably, the output end of the driving motor is coaxially and fixedly connected with a rotating shaft, and one end of the rotating shaft, which is far away from the driving motor, is positioned in the machine body.

Preferably, the driving mechanism further comprises:

the rotating shaft is positioned at one end of the machine body and is fixedly connected with the face gear;

the device comprises a pair of spur gears, a pair of connecting shafts and a plurality of connecting rods, wherein one end of each connecting rod is fixedly connected with an impeller, the other end of each connecting rod is fixedly connected with the connecting shaft, and the connecting shafts are coaxially and fixedly connected with the spur gears.

Preferably, a pair of spur gears are symmetrically arranged on the face gear, and the spur gears are meshed with the face gear.

Preferably, the spur gear is disposed perpendicular to the face gear.

Preferably, a plurality of blades are distributed on the impeller in a circumferential array, and the blades are arranged on the side wall of the impeller in a bending mode.

Preferably, the support frame is a cube framework and is arranged outside the machine body.

Preferably, the machine body is cylindrical, and the pair of air inlets are symmetrically arranged on two side walls of the machine body.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the pair of impellers are arranged in the machine body, and the pair of impellers are driven by the driving motor to rotate simultaneously, so that the centrifugal ventilator is provided with the double air inlets, the occupied space is relatively small, the manufacturing cost of the centrifugal ventilator is reduced, and the cost is saved.

2. According to the utility model, the face gears coaxially and fixedly connected on the rotating shaft are vertically arranged and meshed with the spur gears fixedly connected on the connecting shaft, the corresponding machine body is arranged according to the direction demands of customers on the two air inlets, and the specific demands of the customers are realized by rotating the positions of the pair of spur gears on the face gears, so that the arrangement of the positions of the two air inlets is realized.

3. According to the utility model, the baffle is arranged between the pair of impellers, so that the air thrown out by the impellers is prevented from circularly flowing in the machine body, the impact between the air and the blades on the impellers is reduced, the energy loss and the noise are small, the air can conveniently flow out of the air outlet through the rectangular holes, and the structure is simple and efficient.

Drawings

FIG. 1 is a schematic diagram of a centrifugal fan with double air inlets according to the present utility model;

fig. 2 is a front view of a centrifugal fan with double air inlets according to the present utility model;

FIG. 3 is a schematic diagram of a driving mechanism of a centrifugal fan with double air inlets according to the present utility model;

fig. 4 is a schematic working diagram of a centrifugal fan with double air inlets according to the present utility model.

In the figure: 1. a body; 2. an air inlet; 3. a support frame; 4. a base; 5. a driving motor; 6. a rotating shaft; 7. face gears; 8. spur gears; 9. an impeller; 10. a connecting shaft; 11. a connecting rod; 12. an air outlet; 13. a baffle; 14. rectangular holes.

Detailed Description

Referring to figures 1-4, a centrifugal ventilator with double air inlets comprises a machine body 1, wherein two opposite side walls of the machine body 1 are provided with air inlets 2, impellers 9 are arranged at the air inlets 2, a supporting frame 3 for supporting the machine body 1 is arranged outside the machine body 1, a base 4 for supporting and bearing devices is arranged at the bottom of the supporting frame 3, a driving mechanism is arranged on the base 4 and used for driving a pair of impellers 9 to rotate, air is pumped into the machine body 1 through the two air inlets 2,

the driving mechanism comprises a driving motor 5 for driving a pair of impellers 9 to rotate simultaneously, a rotating shaft 6 is coaxially and fixedly connected to the output end of the driving motor 5, one end, far away from the driving motor 5, of the rotating shaft 6 is positioned in the machine body 1, the driving mechanism further comprises a face gear 7, one end, positioned on the machine body 1, of the rotating shaft 6 is fixedly connected with the face gear 7, and the effect of the arrangement is that the rotating shaft 6, coaxially and fixedly connected with the face gear 7 at the top, is driven by the driving motor 5 to rotate, so that the face gear 7 and a pair of straight gears 8 are meshed and transmitted, and the rotation of the impellers 9 is realized;

referring to fig. 1 and 3, a pair of spur gears 8, a pair of connecting shafts 10 and a plurality of connecting rods 11, one end of each connecting rod 11 is fixedly connected with an impeller 9, the other end of each connecting rod 11 is fixedly connected with the connecting shaft 10, and the connecting shafts 10 are coaxially and fixedly connected with the spur gears 8, so that the connecting shafts 10 can drive the impellers 9 to rotate when rotating, and external air is pumped into the machine body 1;

referring to fig. 3, a pair of spur gears 8 are symmetrically disposed on the face gear 7, the spur gears 8 are disposed perpendicularly to the face gear 7, and the spur gears 8 are engaged with the face gear 7, so that the face gear 7 which is fixedly connected coaxially on the rotating shaft 6 is disposed perpendicularly to the spur gears 8 which are fixedly connected on the connecting shaft 10 and engaged with each other, the corresponding machine body 1 is set according to the direction requirements of customers on the two air inlets 2, and the positions of the two air inlets 2 are set according to the specific requirements of the customers by rotating the positions of the pair of spur gears 8 on the face gear 7.

Referring to fig. 4, a gap is left between a pair of impellers 9, a baffle 13 is arranged between a pair of impellers 9, the baffle 13 is annular, rectangular holes 14 are formed in the baffle 13, an air outlet 12 is formed in the machine body 1 in a communicating manner, the rectangular holes 14 are communicated with the air outlet direction of the air outlet 12, the effect of the arrangement is that the baffle 13 is arranged between the pair of impellers 9, the air thrown out by the impellers 9 is prevented from circularly flowing in the machine body 1, the impact between air and blades on the impellers 9 is reduced, the energy loss and noise are both small, the air is convenient to flow out of the air outlet 12 through the rectangular holes 14, and the structure is simple and efficient.

Referring to fig. 1, a plurality of blades are distributed on a circumferential array on an impeller 9, the blades are bent and arranged on the side wall of the impeller 9, the machine body 1 is cylindrical in shape for enhancing the air suction strength of the impeller 9, the air inlets 12 are led out of the air in the machine body 1 for facilitating the suction of the impeller 9, the pair of air inlets 2 are symmetrically arranged on two side walls of the machine body 1, the supporting frame 3 is arranged on the outer side of the machine body 1 in a square skeleton, and the machine body 1 is supported and protected conveniently in the set effect.

The working principle of the utility model is as follows:

firstly, the rotating shaft 6 of the top coaxial fixed connection face gear 7 is driven by a driving motor 5 to rotate, so that the face gear 7 is meshed with a pair of straight gears 8 for transmission, a pair of impellers 9 are rotated, outside air is pumped into the machine body 1, the air thrown out by the impellers 9 is prevented from circularly flowing in the machine body 1 by arranging a baffle 13 between the impellers 9, the impact between air and blades on the impellers 9 is reduced, energy loss and noise are small, the air can conveniently flow out of an air outlet 12 through a rectangular hole 14, the face gear 7 coaxially fixed on the rotating shaft 6 is vertically placed and meshed with the straight gears 8 fixedly connected on a connecting shaft 10, a corresponding machine body 1 is arranged according to the direction requirements of customers on the two air inlets 2, and the position of the two air inlets 2 is set according to the specific requirements of the customers by rotating the positions of the pair of straight gears 8 on the face gear 7.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a double-air-inlet centrifugal ventilator, includes organism (1), its characterized in that, be equipped with air intake (2) on the opposite both sides wall of organism (1), air intake (2) department is equipped with impeller (9), organism (1) outside is equipped with support frame (3) that are used for supporting organism (1), support frame (3) bottom is equipped with base (4) that are used for supporting and bear the weight of the device, be equipped with actuating mechanism on base (4), the coaxial fixedly connected with pivot (6) of output of actuating motor (5), the one end that actuating motor (5) were kept away from to pivot (6) is located organism (1) inside, actuating mechanism is including being used for driving a pair of impeller (9) simultaneous rotation's actuating motor (5), actuating mechanism still includes face gear (7), a pair of connecting axle (10) and a plurality of connecting rod (11), pivot (6) are located the one end and face gear (7) fixed connection of organism (1), connecting rod (11) one end and impeller (9) fixed connection, and the other end and connecting axle (10) fixed connection, a pair of coaxial gear (8) and a pair of straight gear (8) fixed connection are in the face gear (8), the straight gear (8) is meshed with the face gear (7), the straight gear (8) and the face gear (7) are vertically arranged, and an air outlet (12) is formed in the machine body (1) in a communicating mode.

2. A centrifugal fan with double air inlets according to claim 1, wherein a gap is left between a pair of impellers (9), a baffle (13) is arranged between a pair of impellers (9), the baffle (13) is annular, and rectangular holes (14) are formed in the baffle (13).

3. A twin-air inlet centrifugal fan according to claim 2, in which the rectangular aperture (14) communicates with the air outlet direction of the air outlet (12).

4. A twin-air inlet centrifugal fan according to claim 1, characterised in that the impeller (9) is provided with a plurality of blades distributed in a circumferential array, which are arranged in a curved manner on the side wall of the impeller (9).

5. A centrifugal fan with double air inlets according to claim 1, wherein the supporting frame (3) is arranged outside the machine body (1) in a square skeleton.

6. A centrifugal fan with double air inlets according to claim 1, wherein the machine body (1) is cylindrical, and a pair of the air inlets (2) are symmetrically arranged on two side walls of the machine body (1).