CN210509668U

CN210509668U - Air-cooled circulating fan for heat treatment furnace

Info

Publication number: CN210509668U
Application number: CN201921435121.3U
Authority: CN
Inventors: 蔡小光
Original assignee: Danyang Yishi Machinery Co Ltd
Current assignee: Danyang Yishi Machinery Co Ltd
Priority date: 2019-08-31
Filing date: 2019-08-31
Publication date: 2020-05-12
Anticipated expiration: 2029-08-31

Abstract

The utility model discloses an air-cooled circulating fan for a heat treatment furnace, which comprises a motor and a fan wheel driven by the motor, wherein the motor is provided with an end cover which is fixedly welded and leads to one end of a motor shaft, and the end cover comprises a first cover plate part which is fixed on the motor and exposes out of the motor shaft; a plurality of second bending arms annularly arranged on the surface of the first cover plate part; the third circular ring part is annularly connected with the second bending arms and provided with a plurality of mounting holes; be fixed in the motor shaft and be located the air-cooled flabellum between first apron portion and the third ring portion, the air-cooled flabellum includes towards the isolation piece portion of third ring portion and sets up in isolation piece portion and towards the blade portion that a plurality of rings of motor were established. The utility model discloses an end cover extends and supports fixed fan on the stove, and strengthens the isolation, and spacing air-cooled flabellum towards the motor simultaneously can utilize the air-cooled flabellum to cool down the motor when motor shaft drive fan wheel, avoids the overheated impaired trouble of motor in the past.

Description

Air-cooled circulating fan for heat treatment furnace

Technical Field

The application belongs to the technical field of fans, and particularly relates to an air cooling circulating fan for a heat treatment furnace.

Background

The high-temperature fan used in the kiln needs to operate stably at high temperature, so that hot air in the kiln circulates and flows uniformly to heat, and certain pressure and enough air volume are needed for heating. With the advancement of science and technology and the aggravation of market competition, the common kiln cannot meet emerging industries, and higher requirements are provided for the fan by focusing on new requirements in a new period. Under the condition, the traditional high-temperature fan cannot well meet the requirement of advanced production, the traditional high-temperature fan is low in speed and large in size, a flange plate is directly arranged on the outer surface of the fan, the fan blades at the front end extend into the fan, the motor is fixed outside the fan in a mode that the flange plate is exposed outside the fan, and when the fan works, heat is transferred, and the external motor is easily damaged by heating, so that transmission is influenced. Therefore, there is a need for a fan capable of cooling and dissipating heat relatively to the air during operation, so as to enhance the service life.

SUMMERY OF THE UTILITY MODEL

In view of this, the technical problem that this application will solve provides an air-cooled circulating fan for heat treatment furnace, extends and supports fixed fan on the stove through the end cover, and strengthens keeping apart, and spacing air-cooled flabellum towards the motor simultaneously, when motor shaft drive fan wheel, can utilize air-cooled flabellum to the motor cooling, avoids motor overheated impaired trouble in the past.

In order to solve the technical problem, the utility model discloses an air-cooled circulating fan for a heat treatment furnace, which comprises a motor and a fan wheel driven by the motor, wherein the motor is provided with an end cover which is fixedly welded and leads to one end of a motor shaft, and the end cover comprises a first cover plate part which is fixed on the motor and exposes out of the motor shaft; a plurality of second bending arms annularly arranged on the surface of the first cover plate part; the third circular ring part is annularly connected with the second bending arms and provided with a plurality of mounting holes; be fixed in the motor shaft and be located the air-cooled flabellum between first apron portion and the third ring portion, the air-cooled flabellum includes towards the isolation piece portion of third ring portion and sets up in isolation piece portion and towards the blade portion that a plurality of rings of motor were established.

According to the utility model discloses an embodiment, wherein above-mentioned spacing block portion becomes circular, and the diameter is greater than the aperture 2mm ~3mm of third ring portion.

According to the utility model discloses an embodiment, wherein above-mentioned blade portion sets up perpendicularly in keeping apart the piece portion, highly sets up to 30mm ~40 mm.

According to an embodiment of the present invention, the fan wheel is a dual fan heat dissipation plate, and includes a shaft sleeve portion connected to the end of the motor shaft by a key, and the shaft sleeve portion is locked by a locking bolt; a panel part arranged at the upper end of the shaft sleeve part; the air deflectors are vertically and circularly arranged on the panel part and face the center of the panel part; and the baffle ring parts are covered on the air deflectors and expose out of the central air inlet.

According to an embodiment of the present invention, the panel portion has a downward inclined taper relative to the inner ring region of the air guide plate.

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

extend and support fixed fan on the stove through the end cover, and strengthen the isolation, spacing air-cooled flabellum towards the motor simultaneously, when motor shaft drive fan wheel, can utilize the air-cooled flabellum to cool down the motor, avoid the overheated impaired trouble of motor in the past.

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 an air-cooled circulating fan for a heat treatment furnace according to an embodiment of the present application.

Reference numerals

The fan comprises a motor 10, a motor shaft 11, a fan blade wheel 20, a shaft sleeve part 21, a locking bolt 22, a panel part 23, an air deflector 24, a ring blocking part 25, a central air inlet 26, an end cover 30, a first cover plate part 31, a second bending arm 32, a third circular part 33, a mounting hole 34, an air cooling fan blade 40, a separation piece part 41 and a blade part 42.

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 an air-cooled circulating fan for a heat treatment furnace according to an embodiment of the present application. As shown in the figure, the air-cooled circulating fan for the heat treatment furnace comprises a motor 10 and a fan blade wheel 20 driven by the motor 10, wherein the motor 10 is provided with a welded and fixed end cover 30 which guides one end of a motor shaft 11, and the end cover 30 comprises a first cover plate part 31 which is fixed on the motor 10 and exposes out of the motor shaft 11; a plurality of second bending arms 32 provided around the surface of the first cover plate portion 31; and a third circular part 33 annularly connecting the plurality of second bending arms 32, wherein the third circular part 33 is provided with a plurality of mounting holes 34; the air-cooling fan 40 is fixed to the motor shaft 11 and located between the first cover plate 31 and the third circular portion 33, and the air-cooling fan 40 includes a spacer portion 41 facing the third circular portion 33 and a plurality of annularly-arranged blade portions 42 provided on the spacer portion 41 and facing the motor 10.

In an embodiment of the present invention, the end cover 30 is installed at the end of the motor 10 to support the furnace stably, and the impeller 20 extending into the furnace rotates to accelerate the circulation of hot air and enhance the uniformity of heating in the furnace. The end cover 30 specifically includes a first cover plate portion 31 welded and fixed on the motor 10, which exposes the motor shaft 11, and then a plurality of second bending arms 32 are connected to a third circular portion 33 with mounting holes 24, the third circular portion 33 is equivalent to a flange plate and fixed at a corresponding position of the electric furnace, and the second bending arms 32 through heat dissipation and ventilation enhance isolation, so that the motor 10 is protected from large interference.

Further, between the first cover plate 31 and the third annular portion 33, the motor shaft 11 is fixedly attached with an air-cooling fan 40 facing the motor 10, and the air-cooling fan 40 has a spacer portion 41 facing the electric furnace. Preferably, the isolation sheet part 41 is circular, the diameter of the isolation sheet part is larger than the aperture of the third circular part 33 by 2 mm-3 mm, and the isolation sheet part relatively exceeds the third circular part 33 to strengthen heat insulation. The blade 42 is vertically disposed on the surface of the isolation portion 41 to form a fan blade, and is driven by the motor shaft 11 to continuously blow air to cool and dissipate heat from the motor 10. The service life is prolonged.

Preferably, the blade 42 is vertically provided on the spacer 41, has a height of 30mm to 40mm, is simple in structure and convenient to machine, and may be curved in other embodiments, which corresponds to a spiral blade shape.

The fan impeller 20 is a double-fan radiating disc and comprises a shaft sleeve part 21 which is connected with the end part of the motor shaft 11 through a key, and the shaft sleeve part 21 is locked through a locking bolt 22; a panel portion 23 provided at the upper end of the boss portion 21; a plurality of air deflectors 24 vertically and circularly arranged on the panel part 23, wherein the air deflectors 24 face the center of the panel part 23; and a ring-blocking part 25 covering the plurality of air deflectors 24, wherein the ring-blocking part 25 exposes out of the central air inlet 26. In an embodiment of the present invention, the fan impeller 20 is set as a dual fan heat dissipation plate to improve the wind guiding efficiency of the fan. In detail, the shaft sleeve portion 21 is fixed on the motor shaft 11 through a key connection, and is locked at the lower end by the locking bolt 22, the panel portion 23 is fixed at the upper end of the shaft sleeve portion 21, the lower end is vertically and annularly provided with the plurality of air deflectors 24, and is covered by the annular retaining ring portion 25, the central air inlet 26 is exposed to form air inlet, and a plurality of air ports between the panel portion 23 and the retaining ring portion 25 are formed, so that the air speed flow can be enhanced during rotation, and compared with a single-layer fan blade without the retaining ring portion 25, the fan blade has better ventilation and air guiding efficiency, accelerates the circulation of air flow, and is.

It should be noted that the panel portion 23 has a downward taper in an inner ring area of the air guide plate 24, which is beneficial to exhausting the air flow inside the center and enhancing the circulation.

The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the application as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.

Claims

1. The air-cooled circulating fan for the heat treatment furnace comprises a motor and is characterized by further comprising a fan wheel driven by the motor, wherein the motor is provided with an end cover which is fixedly welded and guided to one end of a motor shaft, and the end cover comprises a first cover plate part which is fixed on the motor and exposes out of the motor shaft; the second bending arms are annularly arranged on the surface of the first cover plate part; the third circular ring part is annularly connected with the second bending arms and provided with a plurality of mounting holes;

be fixed in the motor shaft and be located first apron portion with air-cooled flabellum between the third ring portion, air-cooled flabellum including towards the spacing block portion of third ring portion with set up in spacing block portion and towards the blade portion that a plurality of rings of motor were established.

2. The air-cooled circulating fan for the heat treatment furnace as claimed in claim 1, wherein the spacer is circular and has a diameter 2mm to 3mm larger than the diameter of the third circular portion.

3. The air-cooled circulating fan for the heat treatment furnace as claimed in claim 1, wherein the blade portion is vertically disposed on the separation blade portion, and the height of the blade portion is set to be 30mm to 40 mm.

4. The air-cooled circulating fan for the heat treatment furnace as claimed in claim 1, wherein the fan wheel is configured as a double fan heat dissipation plate including a boss portion which is connected to an end portion of the motor shaft by a key, the boss portion being locked by a locking bolt; a panel portion provided at an upper end of the boss portion; the air deflectors vertically and circularly arranged on the panel part face the center of the panel part; and the baffle ring parts are covered on the air deflectors, and the baffle ring parts are exposed out of the central air inlet.

5. The air-cooled circulating fan for the heat treatment furnace as claimed in claim 4, wherein the panel portion has a downward taper with respect to the inner circumferential region of the air deflector.