CN210738949U

CN210738949U - Low-noise circulating fan

Info

Publication number: CN210738949U
Application number: CN201921438403.9U
Authority: CN
Inventors: 蔡小光
Original assignee: Danyang Yishi Machinery Co Ltd
Current assignee: Danyang Yishi Machinery Co Ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-06-12
Anticipated expiration: 2029-09-02

Abstract

The utility model discloses a low noise circulating fan, include: the fan comprises a motor, a rotating shaft, a heat insulation box and fan blades; the utility model moves the motor and the rotating shaft downwards, so that the gravity centers of the motor and the rotating shaft and the gravity center of the heat insulation box are superposed as much as possible, thereby reducing the redundant vibration during operation; the inside rigid support that sets up of heat-insulating box firstly plays the supporting role to the heat-insulating box, secondly makes heat-insulating box and axis of rotation form rigidity stable connection, and the reduction rocks, finally reaches the effect of noise reduction.

Description

Low-noise circulating fan

Technical Field

The utility model belongs to the technical field of circulating fan, specifically speaking relates to a low noise circulating fan.

Background

Circulating fan among the prior art is for installing on the high temperature furnace, the structural feature who adapts to the high temperature furnace usually, and the hot box that circulating fan has also plays the end cover effect of high temperature furnace, but some hot box designs thickly to circulating fan and hot box's connection structure is firm inadequately, and circulating fan during operation easily produces great noise.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims to solve the technical problem that a low noise circulating fan is provided, the problem of circulating fan during operation easily produces great noise among the prior art has been solved.

In order to solve the technical problem, the utility model discloses a low noise circulating fan, include: the fan comprises a motor, a rotating shaft, a heat insulation box and fan blades; the upper part of the heat insulation box is provided with a pit, and the lower part of the heat insulation box extends downwards to form a boss; guide grooves are arranged on two sides of the heat insulation box; a rigid support is arranged in the heat insulation box, bearing seats are arranged at two ends of the rigid support, and a shaft sleeve is arranged between the two bearing seats.

Further, the shape of the concave pits is a quadrangular boss.

Further, the shape of the boss is a quadrangular boss.

Further, the motor is arranged on the bottom surface of the pit.

Furthermore, a hoisting top plate is arranged at the top of the heat insulation box.

Compared with the prior art, the application can obtain the following technical effects:

the utility model moves the motor and the rotating shaft downwards, so that the gravity centers of the motor and the rotating shaft and the gravity center of the heat insulation box are superposed as much as possible, thereby reducing the redundant vibration during operation; the inside rigid support that sets up of heat-insulating box firstly plays the supporting role to the heat-insulating box, secondly makes heat-insulating box and axis of rotation form rigidity stable connection, and the reduction rocks, finally reaches the effect of noise reduction.

Of course, it is not necessary for any one product to achieve all of the above-described technical effects simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic view of a low noise circulation fan according to an embodiment of the present invention.

Reference symbols of the drawings

The heat insulation device comprises a motor 1, a rotating shaft 2, a heat insulation box 3, fan blades 4, a pit 5, a boss 6, a guide groove 7, a rigid support 8, a bearing seat 9, a shaft sleeve 10 and a hoisting top plate 11.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

Referring to fig. 1, fig. 1 is a schematic view of a low noise circulation fan according to an embodiment of the present invention. A low noise circulation fan comprising: the device comprises a motor 1, a rotating shaft 2, a heat insulation box 3 and fan blades 4; the upper part of the heat insulation box 3 is provided with a pit 5, and the lower part of the heat insulation box extends downwards to form a boss 6; guide grooves 7 are arranged on two sides of the heat insulation box 3; a rigid support 8 is arranged in the heat insulation box 3, bearing seats 9 are arranged at two ends of the rigid support 8, and a shaft sleeve 10 is arranged between the two bearing seats 9.

Pit 5 is the shape of four-edge boss, and boss 6 is the shape of four-edge boss, and motor 1 sets up in pit 5's bottom surface, and the top of heat-insulating box 3 is equipped with hoist and mount roof 11.

The utility model moves the motor 1 and the rotating shaft 2 downwards, so that the gravity centers of the motor 1 and the rotating shaft 2 and the gravity center of the heat insulation box 3 are superposed as much as possible, thereby reducing the redundant vibration during operation; inside rigid support 8 that sets up of heat-insulating box 3 firstly plays the supporting role to heat-insulating box 3, secondly makes heat-insulating box 3 and axis of rotation 2 form the rigidity and stably connects, and the reduction rocks, finally reaches the effect of noise reduction.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A low noise circulation fan comprising: the fan comprises a motor, a rotating shaft, a heat insulation box and fan blades; the method is characterized in that: the upper part of the heat insulation box is provided with a pit, and the lower part of the heat insulation box extends downwards to form a boss; guide grooves are formed in two sides of the heat insulation box; a rigid support is arranged in the heat insulation box, bearing seats are arranged at two ends of the rigid support, and a shaft sleeve is arranged between the two bearing seats.

2. The low noise circulation fan according to claim 1, wherein: the concave pits are in the shape of quadrangular bosses.

3. The low noise circulation fan according to claim 1, wherein: the boss is in a shape of a quadrangular boss.

4. The low noise circulation fan according to claim 1, wherein: the motor is arranged on the bottom surface of the pit.

5. The low noise circulation fan according to claim 1, wherein: and a hoisting top plate is arranged at the top of the heat insulation box.