CN215762461U

CN215762461U - Vibration/noise reduction structure for axial fan

Info

Publication number: CN215762461U
Application number: CN202122290678.6U
Authority: CN
Inventors: 鲁鹏
Original assignee: Weihai Hongri Environmental Protection Equipment Co ltd
Current assignee: Weihai Hongri Environmental Protection Equipment Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-02-08
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses a shock-absorbing and noise-reducing structure for an axial flow fan, which comprises a shell, wherein the left end and the right end of the shell are fixedly connected with flange plates, the lower wall of the right part and the lower wall of the middle part in the shell are fixedly connected with supporting legs, springs are uniformly distributed on the upper part of a first supporting plate, the upper ends of the springs are fixedly connected to the lower part of a second supporting plate, the outer sides of first pulleys are rotatably connected with connecting rods, the upper part of the second supporting plate is fixedly connected with three motors, the left end driving ends of the three motors are fixedly connected with driving rods, the left ends of the driving rods are fixedly connected to the middle part of the right end of a rotary table, and threaded openings are uniformly distributed on the periphery of the rotary table. According to the utility model, the axial flow fan is convenient to install and replace fan blades, and the axial flow fan can not generate noise due to vibration during working, so that the axial flow fan is worthy of being popularized vigorously.

Description

Vibration/noise reduction structure for axial fan

Technical Field

The utility model relates to the field of axial flow fans, in particular to a shock absorption and noise reduction structure for an axial flow fan.

Background

The axial flow fan is mainly composed of a fan impeller and a casing, has wide application, namely airflow in the same direction with the shaft of a fan blade, such as an electric fan, and an air conditioner outer fan is an axial flow type running fan, and is called axial flow because air flows in parallel with the fan shaft.

The existing axial flow fan mainly has the following two defects, one is that the axial flow fan can generate larger vibration when being used because three motors drive fan blades to rotate, so that larger noise can be generated, the service life of the axial flow fan is influenced, the axial flow fan is generally installed to a specified position in a welding mode, the installation and the removal are inconvenient, and the fan blades are used as easily damaged products and cannot be replaced, so that the later maintenance is difficult.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a shock-absorbing noise-reducing structure for an axial flow fan.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a vibration/noise reduction structure for axial-flow fan, includes the casing, the equal fixedly connected with ring flange of the left and right ends of casing, the equal fixedly connected with supporting legs of right part lower wall and middle part lower wall in the casing, the equal fixed connection in the lower part of first backup pad in the upper end of supporting legs, the upper portion evenly distributed of first backup pad has the spring, the equal fixed connection in the lower part of second backup pad in the upper end of spring, the equal sliding connection of left and right ends in the side spout around the first backup pad has first pulley, the outside of first pulley is all rotated and is connected with the connecting rod, the upper portion fixedly connected with three motors of second backup pad, the left end drive end fixedly connected with actuating lever of three motors, the left end fixed connection of actuating lever is at the right-hand member middle part of carousel, the periphery evenly distributed of carousel has the screw thread mouth.

As a further description of the above technical solution:

the lower end of the flange plate is connected with a base through bolts.

As a further description of the above technical solution:

the middle parts of the connecting rods on the two sides of the first supporting plate and the second supporting plate are rotatably connected through limiting rods.

As a further description of the above technical solution:

the upper ends of the connecting rods are rotatably connected to the outer side of the second pulley.

As a further description of the above technical solution:

and the left end and the right end in the front side sliding groove and the rear side sliding groove of the second supporting plate are both connected with a second pulley in a sliding manner.

As a further description of the above technical solution:

the inner periphery of the threaded opening is alternately in threaded connection with threaded columns, and one ends of the threaded columns are fixedly connected with fan blades.

As a further description of the above technical solution:

the right end of the shell is fixedly connected with a filter screen.

The utility model has the following beneficial effects:

1. according to the utility model, the base is firstly installed on the flange plate through the bolts, the axial flow fan is installed at a specified position through the bolts and the flange plate, the threaded column fixedly connected to the fan blade is installed in the threaded opening according to the requirement, and the axial flow fan is convenient to install and replace the fan blade through the threaded column in the flange plate and the threaded opening.

2. In the utility model, the three motors are started, the driving rod drives the rotating disc to rotate, so that the fan blades rotate to dissipate heat and ventilate, when the three motors work, the generated vibration potential energy is absorbed by the springs between the first supporting plate on the supporting legs and the second supporting plate at the lower parts of the three motors, so that the three motors do not generate noise due to vibration when working, and the fan is worthy of great popularization.

Drawings

FIG. 1 is a perspective view of a vibration/noise reduction structure for an axial flow fan according to the present invention;

FIG. 2 is a front view of the structure of the vibration/noise reduction structure for an axial flow fan according to the present invention;

fig. 3 is a left side view of a vibration/noise reduction structure for an axial flow fan according to the present invention.

Illustration of the drawings:

1. a housing; 2. a flange plate; 3. a bolt; 4. a base; 5. supporting legs; 6. a first support plate; 7. a first pulley; 8. a connecting rod; 9. a limiting rod; 10. a spring; 11. a second support plate; 12. a second pulley; 13. three motors; 14. a drive rod; 15. a turntable; 16. a threaded opening; 17. a threaded post; 18. a fan blade; 19. and (5) filtering by using a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, 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 in specific cases to those skilled in the art.

Referring to fig. 1-3, one embodiment of the present invention is provided: a vibration and noise reduction structure for an axial flow fan comprises a shell 1, wherein flange plates 2 are fixedly connected to the left end and the right end of the shell 1, supporting legs 5 are fixedly connected to the lower wall of the right part and the lower wall of the middle part in the shell 1, the upper ends of the supporting legs 5 are fixedly connected to the lower part of a first supporting plate 6, springs 10 are uniformly distributed on the upper part of the first supporting plate 6, the upper ends of the springs 10 are fixedly connected to the lower part of a second supporting plate 11, three motors 13 are started, a driving rod 14 drives a rotary table 15 to rotate, so that fan blades 18 rotate to dissipate heat and ventilate, when the three motors 13 work, the generated vibration potential energy is absorbed by the springs 10 between the first supporting plate 6 on the supporting legs 5 and the second supporting plate 11 at the lower parts of the three motors 13, so that the three motors 13 cannot generate noise due to vibration when work, the left end and the right end in front and rear side sliding chutes of the first supporting plate 6 are respectively and slidably connected with first pulleys 7, the outside of first pulley 7 all rotates and is connected with connecting rod 8, can prevent three motors 13 at the during operation, produce the swing, three motors 13 of upper portion fixedly connected with of second backup pad 11, the left end drive end fixedly connected with actuating lever 14 of three motors 13, the left end fixed connection of actuating lever 14 is at the right-hand member middle part of carousel 15, the periphery evenly distributed of carousel 15 has screw thread mouth 16, install base 4 to ring flange 2 through bolt 3, install axial fan to the assigned position through bolt 3 and ring flange 2, as required again, install fixed connection screw thread post 17 on flabellum 18 to screw thread mouth 16, screw thread post 17 through threaded connection in ring flange 2 and the screw thread mouth 16, axial fan's simple to operate and convenient flabellum 18 of changing have been realized.

The lower extreme of ring flange 2 all is connected with base 4 through bolt 3, the middle part of 11 both sides connecting rod 8 of first backup pad 6 and second backup pad is all rotated through gag lever post 9 and is connected, the upper end of connecting rod 8 is all rotated and is connected in the outside of second pulley 12, it is spacing to connecting rod 8, the equal sliding connection of left and right-hand member in the front and back side spout of second backup pad 11 has second pulley 12, the interior circumference of screw thread 16 has screw thread post 17 in turn, the equal fixedly connected with flabellum 18 of one end of screw thread post 17, the right-hand member fixedly connected with filter screen 19 of casing 1, can prevent that the dust from blowing to flabellum 18 through the air intake, prolong the life of flabellum 18.

The working principle is as follows: firstly, a base 4 is installed on a flange plate 2 through a bolt 3, an axial flow fan is installed at a designated position through the bolt 3 and the flange plate 2, then a threaded column 17 fixedly connected to a fan blade 18 is installed in a threaded opening 16 according to requirements, the axial flow fan is convenient to install and replace the fan blade 18 through the threaded column 17 in the flange plate 2 and the threaded opening 16, three motors 13 are started, a driving rod 14 drives a rotary table 15 to rotate, so that the fan blade 18 rotates to dissipate heat and ventilate, when the three motors 13 work, vibration potential energy generated is absorbed through springs 10 between a first supporting plate 6 on a supporting leg 5 and a second supporting plate 11 at the lower part of the three motors 13, the three motors 13 cannot generate noise due to vibration in work, two connecting rods 8 at the front side and the rear side are connected through limiting rods 9, and a first pulley 7 and a second pulley 12 are slidably connected with sliding grooves at the two sides of the first supporting plate 6 and the second supporting plate 11 In, can prevent that three motors 13 from producing the swing at the during operation, filter screen 19 on casing 1 right side can prevent that the dust from blowing to flabellum 18 through the air intake on, prolongs the life of flabellum 18, is worth wideling popularize.

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 or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a vibration/noise reduction structure for axial fan, includes casing (1), its characterized in that: the left end and the right end of the shell (1) are fixedly connected with flange plates (2), the right lower wall and the middle lower wall in the shell (1) are fixedly connected with supporting legs (5), the upper ends of the supporting legs (5) are fixedly connected with the lower part of a first supporting plate (6), springs (10) are uniformly distributed on the upper part of the first supporting plate (6), the upper ends of the springs (10) are fixedly connected with the lower part of a second supporting plate (11), the left end and the right end in sliding grooves on the front side and the rear side of the first supporting plate (6) are slidably connected with first pulleys (7), the outer side of each first pulley (7) is rotatably connected with a connecting rod (8), the upper part of the second supporting plate (11) is fixedly connected with three motors (13), the left end driving ends of the three motors (13) are fixedly connected with driving rods (14), and the left end of each driving rod (14) is fixedly connected with the middle part of the right end of a turntable (15), threaded openings (16) are uniformly distributed on the periphery of the rotary disc (15).

2. The structure of claim 1, wherein: the lower end of the flange plate (2) is connected with a base (4) through bolts (3).

3. The structure of claim 1, wherein: the middle parts of the connecting rods (8) on the two sides of the first supporting plate (6) and the second supporting plate (11) are rotatably connected through limiting rods (9).

4. The structure of claim 1, wherein: the upper ends of the connecting rods (8) are rotatably connected to the outer side of the second pulley (12).

5. The structure of claim 1, wherein: and the left end and the right end in the front sliding groove and the rear sliding groove of the second supporting plate (11) are both connected with a second pulley (12) in a sliding manner.

6. The structure of claim 1, wherein: the inner periphery of the threaded opening (16) is alternately in threaded connection with threaded columns (17), and one ends of the threaded columns (17) are fixedly connected with fan blades (18).

7. The structure of claim 1, wherein: the right end of the shell (1) is fixedly connected with a filter screen (19).