Fan for electric furnace

Abstract

The utility model discloses a fan for an electric furnace. The fan comprises a motor mounting frame body arranged outside a furnace body, a motor arranged at the top of the motor mounting frame body, motor fan blades which are arranged in the furnace body and correspond to the motor, and a rotating shaft for connecting the motor and the motor fan blades, the motor mounting frame body comprises a mounting base, a mounting middle seat and a mounting top seat which are detachably mounted and connected with one another; a motor heat dissipation structure is arranged in the motor mounting frame body; and the motor heat dissipation structure comprises a first-stage heat dissipation fan blade arranged at the tail end of the motor, a second-stage heat dissipation fan blade arranged in the mounting middle seat and a third-stage heat dissipation fan blade arranged in the mounting base. The utility model has the advantage that the fan is not easily influenced by high temperature of the electric furnace.

Description

Technical Field

[0001] The utility model relates to the field of electric furnace equipment, in particular to a fan for an electric furnace. Background Art

[0002] An electric furnace, usually referring to a heat treatment electric furnace, is a device used for heating charge heat treatment. It is a mechanical device used for tempering workpieces and is widely used in the thermal processing of metal parts.

[0003] In order to circulate the hot air inside the electric furnace, a fan needs to be installed.

[0004] The circulating fans used in general heat treatment furnaces are directly installed on the furnace wall. Because the temperature of the furnace itself is not low, its heat will have a certain impact on the motor. In addition, the long-term operation of the circulating fan will also cause the motor to heat up for a long time. The heat that cannot be dissipated in time will cause the motor to be in a high temperature state all the time, causing its operation to be unstable, making the air volume of the circulating fan unstable. The unstable air volume of the circulating fan will inevitably cause the hot air in the heat treatment furnace to be unable to circulate effectively, resulting in uneven internal temperature distribution. As a result, the workpiece is heated unevenly and mass temperature occurs. Utility Model Content

[0005] The utility model aims to provide a fan for an electric furnace. The utility model has the advantage that the fan is not easily affected by the high temperature of the electric furnace.

[0006] The technical solution of the utility model: a fan for an electric furnace, comprising a motor mounting frame arranged outside the furnace body, a motor arranged on the top of the motor mounting frame, motor blades arranged in the furnace body and corresponding to the motor, and a rotating shaft connecting the motor and the motor blades; the motor mounting frame comprises a mounting base, a mounting middle seat and a mounting top seat that are detachably mounted and connected to each other; a motor heat dissipation structure is arranged in the motor mounting frame; the motor heat dissipation structure comprises a primary heat dissipation blade arranged at the end of the motor, a secondary heat dissipation blade arranged in the mounting middle seat and a tertiary heat dissipation blade arranged in the mounting base.

[0007] In the aforementioned electric furnace fan, the rotating shaft includes a motor shaft, a connecting shaft and a blade shaft connected in sequence; the motor shaft is connected to the connecting shaft through a primary coupling; and the blade shaft is connected to the connecting shaft through a secondary coupling.

[0008] In the aforementioned electric furnace fan, the fan blade shaft is provided with a plurality of locking blocks evenly distributed along the outer edge and a limiting portion in the middle; the limiting portion passes through the motor fan blade, and a limiting nut is provided at the end of the limiting portion; a locking groove corresponding to the locking block is provided in the motor fan blade.

[0009] In the aforementioned electric furnace fan, the furnace body is provided with a heat insulating sleeve sleeved on the rotating shaft.

[0010] In the aforementioned fan for an electric furnace, the mounting base is connected to the furnace body via a plurality of fixing screws; the motor, the mounting top seat, the mounting middle seat and the mounting base are connected in sequence via connecting nuts.

[0011] In the aforementioned fan for an electric furnace, the mounting base, the mounting middle seat and the mounting top seat are all hollow structures, and are provided with a plurality of hollow grooves.

[0012] Compared with the prior art, the present application provides a motor mounting frame outside the furnace body, installs the motor on the top of the motor mounting frame, and the motor blades are arranged inside the furnace body, and the motor and the motor blades are connected through a rotating shaft;

[0013] The motor mounting frame is composed of a detachable mounting base, a mounting middle seat and a mounting top seat, and a motor heat dissipation structure composed of a primary heat dissipation fan blade, a secondary heat dissipation fan blade and a tertiary heat dissipation fan blade is correspondingly arranged inside;

[0014] The motor of the present application is far away from the furnace body, thereby reducing the impact of the high temperature of the furnace body on the motor, and is equipped with a motor heat dissipation structure, which continuously performs air cooling during operation, effectively reducing the problems of the motor and making it less likely to have high-temperature failures.

[0015] Therefore, the utility model has the advantage that the fan is not easily affected by the high temperature of the electric furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0018] The marks in the accompanying drawings are: 1-motor, 2-mounting top seat, 3-mounting middle seat, 4-mounting base, 41-fixing screw, 51-primary coupling, 52-secondary coupling, 61-motor shaft, 62-connecting shaft, 63-fan blade shaft, 631-positioning block, 632-limiting part, 633-limiting nut, 71-primary cooling fan blade, 72-secondary cooling fan blade, 73-third stage cooling fan blade, 8-motor fan blade, 9-furnace body. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0020] Embodiment. A fan for an electric furnace, such as Figure 1-2As shown, it includes a motor mounting frame arranged outside the furnace body 9, a motor 1 arranged on the top of the motor mounting frame, a motor blade 8 arranged in the furnace body 9 and corresponding to the motor 1, and a rotating shaft connecting the motor 1 and the motor blade 8; the motor mounting frame includes a mounting base 4, a mounting middle seat 3 and a mounting top seat 2 that are detachably mounted and connected to each other; a motor heat dissipation structure is arranged in the motor mounting frame; the motor heat dissipation structure includes a primary heat dissipation blade 71 arranged at the end of the motor 1, a secondary heat dissipation blade 72 arranged in the mounting middle seat 3 and a tertiary heat dissipation blade 73 arranged in the mounting base 4.

[0021] The primary heat dissipation fan blades 71 , the secondary heat dissipation fan blades 72 and the tertiary heat dissipation fan blades 73 are all common refrigeration blades on the market, and are all made of heat-resistant materials.

[0022] The rotating shaft includes a motor shaft 61 , a connecting shaft 62 and a fan shaft 63 which are connected in sequence; the motor shaft 61 is connected to the connecting shaft 62 via a primary coupling 51 ; the fan shaft 63 is connected to the connecting shaft 62 via a secondary coupling 52 .

[0023] The fan blade shaft 63 is provided with a plurality of locking blocks 631 evenly distributed along the outer edge and a limiting portion 632 in the middle; the limiting portion 632 passes through the motor fan blade 8, and a limiting nut 633 is provided at the end of the limiting portion 632; a locking groove corresponding to the locking block 631 is provided in the motor fan blade 8.

[0024] The furnace body 9 is provided with a heat insulating sleeve sleeved on the rotating shaft, and the heat insulating sleeve is made of heat insulating material.

[0025] The mounting base 4 is connected to the furnace body 9 via a plurality of fixing screws 41; the motor 1, the mounting top seat 2, the mounting middle seat 3 and the mounting base 4 are connected in sequence via connecting nuts.

[0026] The mounting base 4, the mounting middle seat 3 and the mounting top seat 2 are all hollow structures, and are provided with a plurality of hollow grooves.

Claims

1. A fan for an electric furnace, characterized in that: The invention comprises a motor mounting frame arranged outside a furnace body (9), a motor (1) arranged on the top of the motor mounting frame, a motor blade (8) arranged inside the furnace body (9) and corresponding to the motor (1), and a rotating shaft connecting the motor (1) and the motor blade (8); the motor mounting frame comprises a mounting base (4), a mounting middle seat (3) and a mounting top seat (2) which are detachably mounted and connected to each other; a motor heat dissipation structure is arranged inside the motor mounting frame; the motor heat dissipation structure comprises a primary heat dissipation blade (71) arranged at the end of the motor (1), a secondary heat dissipation blade (72) arranged in the mounting middle seat (3), and a tertiary heat dissipation blade (73) arranged in the mounting base (4).

2. The fan for an electric furnace according to claim 1, characterized in that: The rotating shaft comprises a motor rotating shaft (61), a connecting shaft (62) and a blade shaft (63) which are connected in sequence; the motor rotating shaft (61) is connected to the connecting shaft (62) via a primary coupling (51); and the blade shaft (63) is connected to the connecting shaft (62) via a secondary coupling (52).

3. The fan for an electric furnace according to claim 2, characterized in that: The fan blade shaft (63) is provided with a plurality of locking blocks (631) evenly distributed along the outer edge and a limiting portion (632) in the middle; the limiting portion (632) passes through the motor fan blade (8), and a limiting nut (633) is provided at the end of the limiting portion (632); and a locking groove corresponding to the locking block (631) is provided in the motor fan blade (8).

4. The fan for an electric furnace according to claim 1, characterized in that: The furnace body (9) is provided with a heat insulation sleeve sleeved on the rotating shaft.

5. The fan for an electric furnace according to claim 1, characterized in that: The mounting base (4) is connected to the furnace body (9) via a plurality of fixing screws (41); the motor (1), the mounting top seat (2), the mounting middle seat (3) and the mounting base (4) are connected in sequence via connecting nuts.

6. The fan for an electric furnace according to claim 1, characterized in that: The mounting base (4), the mounting middle seat (3) and the mounting top seat (2) are all hollow structures and are provided with a plurality of hollow grooves.

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