CN216407216U

CN216407216U - High-pressure centrifugal fan

Info

Publication number: CN216407216U
Application number: CN202121858292.4U
Authority: CN
Inventors: 孙玉琴
Original assignee: Yancheng Suya Rice Industry Co ltd
Current assignee: Yancheng Suya Rice Industry Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-04-29
Anticipated expiration: 2031-08-10

Abstract

The utility model discloses a high-pressure centrifugal fan which comprises a base, wherein an air barrel is fixedly installed on one side of the upper end surface of the base, an air inlet is formed in one side of the air barrel, a protective cover is arranged on the inner side of the air inlet, a filter screen is embedded and installed in the protective cover, vibration damping mechanisms are installed at four corners of the bottom of the base and comprise a base plate and a cover plate, a limiting sleeve is fixedly installed at the center of the inner part of the base plate, a plurality of limiting sleeves are symmetrically installed at the inner bottom of the base and the inner top of the cover plate, springs are arranged between the limiting sleeves, a limiting shaft is arranged at the center of the upper end surface of the cover plate, penetrates through the cover plate and extends to the bottom of the cover plate, the limiting shaft and the limiting sleeves are mutually sleeved, and fixing frames are fixedly installed on two sides of the upper end surface of the cover plate. This kind of high pressure centrifugal fan, simple structure is reasonable, the modern design, and easy operation is convenient, can effectual reduction high pressure centrifugal fan's vibration, and be convenient for wash and change the filter screen, have higher practical value.

Description

High-pressure centrifugal fan

Technical Field

The utility model relates to the technical field of ventilation equipment, in particular to a high-pressure centrifugal fan.

Background

The high-pressure centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion.

Current high-pressure centrifugal fan is when carrying out work, often because the high-speed rotation of impeller leads to high-pressure centrifugal fan whole to produce the vibration for noise is very big when the machine operation, and current high-pressure centrifugal fan's filter screen all is fixed mounting in air intake department, makes the very loaded down with trivial details of the change of filter screen. Therefore, the high-pressure centrifugal fan is improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model relates to a high-pressure centrifugal fan which comprises a base, wherein an air duct is fixedly arranged on one side of the upper end surface of the base, an air inlet is formed in one side of the air duct, a protective cover is arranged on the inner side of the air inlet, a filter screen is embedded and installed in the protective cover, vibration damping mechanisms are installed at four corners of the bottom of the base and comprise a chassis and a cover plate, a limiting sleeve is fixedly installed at the center of the inner part of the chassis, a plurality of limiting sleeves are symmetrically installed at the inner bottom of the base and the inner top of the cover plate, springs are arranged among the limiting sleeves, a limiting shaft is arranged at the center of the upper end surface of the cover plate, the limiting shaft penetrates through the cover plate and extends to the bottom and is mutually sleeved with the limiting sleeves, and fixing frames are fixedly installed on two sides of the upper end surface of the cover plate.

As a preferred technical scheme of the utility model, one side of the upper end surface of the base, which is close to the air duct, is provided with an installation platform, and the upper end surface of the installation platform is fixedly provided with a motor.

As a preferred technical scheme of the utility model, the output end of one side of the motor penetrates through the air duct and extends to the inside, and the output end of the motor is sleeved with the impeller.

As a preferred technical scheme of the utility model, one side of the air duct is communicated with an air outlet, and one side of the air outlet is provided with a flange plate.

As a preferred technical scheme, sliding grooves are formed in two ends of the upper end of the air inlet, sliding blocks are mounted at two ends of the upper end of the protective cover, and the sliding grooves are connected with the sliding blocks in a sliding mode.

As a preferable technical scheme of the utility model, a cushion pad is bonded on the top inside the cover plate, and the cushion pad is made of rubber.

As a preferred technical scheme of the utility model, mounting pins are mounted on both sides of the chassis, and mounting holes are formed in the mounting pins.

The utility model has the beneficial effects that:

1. according to the high-pressure centrifugal fan, the sliding connection between the sliding block and the sliding groove enables the protective cover to be installed and detached at the air inlet, a user can conveniently clean and replace a filter screen in the protective cover, and the vibration reduction mechanism is installed and matched with the chassis, the cover plate, the spring, the mounting disc, the limiting shaft, the buffer pad and the fixing frame to achieve the vibration reduction effect on the high-pressure centrifugal fan, so that the vibration force generated by the high-pressure centrifugal fan during operation is offset by the contraction of the spring in the vibration reduction mechanism, and the stability of the high-pressure centrifugal fan is improved;

2. the high-pressure centrifugal fan has the advantages that the air inlet, the air outlet, the motor and the impeller are matched with each other, so that air is sucked into the air duct from the air inlet when the impeller rotates, the air is discharged through the air outlet after pressurization, and a flange plate is installed on one side of the air outlet, so that a user can conveniently butt and install the air outlet through the flange plate.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a front perspective view of a high pressure centrifugal fan of the present invention;

FIG. 2 is a schematic rear perspective view of a high pressure centrifugal fan according to the present invention;

FIG. 3 is a schematic perspective view of a vibration damping mechanism of a high pressure centrifugal fan according to the present invention;

fig. 4 is a schematic front sectional view of a protective cover of a high-pressure centrifugal fan according to the present invention.

In the figure: 1. a base; 2. an air inlet; 3. a protective cover; 4. filtering with a screen; 5. an air outlet; 6. an air duct; 7. a motor; 8. an impeller; 9. a vibration reduction mechanism; 10. an installation table; 11. a chassis; 12. a limiting sleeve; 13. a spring; 14. a cushion pad; 15. a cover plate; 16. a fixed mount; 17. a limiting shaft; 18. a slider; 19. a chute; 20. mounting a disc; 21. and installing the pins.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-4, the high-pressure centrifugal fan of the utility model comprises a base 1, wherein an air duct 6 is fixedly arranged on one side of the upper end surface of the base 1, an air inlet 2 is arranged on one side of the air duct 6, a protective cover 3 is arranged on the inner side of the air inlet 2, a filter screen 4 is embedded in the protective cover 3, four corners of the bottom of the base 1 are respectively provided with a vibration damping mechanism 9, the vibration damping mechanism 9 comprises a base plate 11 and a cover plate 15, a limit sleeve 12 is fixedly arranged at the center of the inside of the base plate 11, a plurality of limiting sleeves 20 are symmetrically arranged at the bottom of the inner part of the base 11 and the top of the inner part of the cover plate 14, springs 13 are arranged between the limiting sleeves 20, a limiting shaft 17 is arranged at the center of the upper end face of the cover plate 15, the limiting shaft 17 penetrates through the cover plate 15 and extends to the bottom, and is mutually sleeved with the limiting sleeve 12, and both sides of the upper end surface of the cover plate 14 are fixedly provided with fixing frames 16.

Wherein, mount table 10 is installed to one side that the up end of base 1 is close to dryer 6, mount table 10 up end fixed mounting has motor 7, through installing motor 7 for motor 7 can drive impeller 8 when rotating and rotate, and then produces wind-force.

Wherein, the dryer 6 is run through to inside to 7 one sides of motor output ends to the cover is equipped with impeller 8 on the output of motor 7, through at 7 one sides of motor output shaft suit impeller 8, can drive impeller 8 when making motor 7 rotate and rotate.

Wherein, 6 one sides of dryer intercommunication have gas outlet 5, just the ring flange is installed to 5 one sides of gas outlet, through setting up gas outlet 5, and install the ring flange to install gas outlet 5 with the user.

Wherein, spout 19 has all been seted up at 2 upper end both ends of air inlet, slider 18 is all installed at 3 upper end both ends of safety cover, spout 19 and the equal sliding connection of slider 18, through installation spout 19 and slider 18, and spout 19 and 18 sliding connection of slider, convenient to use person installs and dismantles safety cover 3, and then realizes the washing and the change effect to filter screen 4.

Wherein, the inside top of apron 15 bonds and has blotter 14, just blotter 14 is the rubber material, through at the inside blotter 14 that bonds of apron 15 for damping mechanism 9's damping effect is better.

Wherein, installation pin 21 is all installed to 11 both sides on chassis, just all seted up the mounting hole on the installation pin 21, through installation pin 21, convenient to use person fixes damping mechanism 9, improves damping mechanism 9's damping effect.

The working principle is as follows: when the high-pressure centrifugal fan is used, whether each mechanism in the high-pressure centrifugal fan is complete is firstly checked, then four vibration reduction mechanisms 9 are fixed at a place needing to be installed, then the base 1 of the high-pressure centrifugal fan is installed on a fixing frame at the upper end of each vibration reduction mechanism 9, the motor 7 is connected with a power supply through a lead, an impeller 8 in the air duct 6 rotates, the protective cover 3 can be installed and disassembled at the air inlet 2 through the sliding connection between the sliding block 18 and the sliding groove 19, a user can conveniently clean and replace the filter screen 4 in the protective cover 3, the vibration reduction mechanisms 9 are installed, the vibration reduction mechanisms 9 realize the vibration reduction effect on the high-pressure centrifugal fan through the mutual matching of the base plate 11, the cover plate 15, the spring 13, the mounting plate 20, the limiting shaft 17, the cushion 14 and the fixing frame 16, so that the vibration force generated by the high-pressure centrifugal fan in operation is counteracted by the contraction of the spring 13 in the vibration reduction mechanisms 9, the high-pressure centrifugal fan has the advantages of simple and reasonable structure, novel design, simplicity and convenience in operation, capability of effectively reducing the vibration of the high-pressure centrifugal fan, convenience in cleaning and replacing the filter screen and higher practical value.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. 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 high-pressure centrifugal fan comprises a base (1) and is characterized in that an air duct (6) is fixedly mounted on one side of the upper end face of the base (1), an air inlet (2) is formed in one side of the air duct (6), a protective cover (3) is arranged on the inner side of the air inlet (2), a filter screen (4) is embedded and mounted in the protective cover (3), damping mechanisms (9) are mounted in four corners of the bottom of the base (1), each damping mechanism (9) comprises a chassis (11) and a cover plate (15), a limiting sleeve (12) is fixedly mounted in the center of the interior of the chassis (11), a plurality of mounting discs (20) are symmetrically mounted at the bottoms of the interior of the chassis (11) and the tops of the interior of the cover plates (15), springs (13) are arranged between the mounting discs (20), a limiting shaft (17) is arranged in the center of the upper end face of the cover plate (15), and the limiting shaft (17) penetrates through the cover plate (15) and extends to the bottom, and the cover plate is mutually sleeved with a limiting sleeve (12), and both sides of the upper end surface of the cover plate (15) are fixedly provided with fixing frames (16).

2. The high-pressure centrifugal fan according to claim 1, wherein a mounting table (10) is mounted on one side of the upper end surface of the base (1) close to the air duct (6), and the motor (7) is fixedly mounted on the upper end surface of the mounting table (10).

3. The high-pressure centrifugal fan according to claim 2, wherein the output end of one side of the motor (7) penetrates through the air duct (6) and extends to the inside, and an impeller (8) is sleeved on the output end of the motor (7).

4. The high-pressure centrifugal fan as claimed in claim 1, wherein one side of the air duct (6) is communicated with an air outlet (5), and a flange is mounted on one side of the air outlet (5).

5. The high-pressure centrifugal fan according to claim 1, wherein sliding grooves (19) are formed in both ends of the upper end of the air inlet (2), sliding blocks (18) are mounted on both ends of the upper end of the protection cover (3), and the sliding grooves (19) are slidably connected with the sliding blocks (18).

6. The high-pressure centrifugal fan as claimed in claim 1, wherein a cushion (14) is bonded to the top of the cover plate (15), and the cushion (14) is made of rubber.

7. The high-pressure centrifugal fan according to claim 1, wherein mounting pins (21) are mounted on both sides of the chassis (11), and mounting holes are formed in the mounting pins (21).