Special motor for hot air circulating fan

By designing the air inlet filter plate, bundle tube and bolt connection structure, the problem of high-temperature deformation or cracking of the fan blade of the hot air circulation fan is solved, and the motor is quickly disassembled and replaced, improving the maintenance convenience and safety of the equipment.

CN223218954UActive Publication Date: 2025-08-12NANJING NUOFANG FAN CO LTD
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Patent Information

Application Number
CN202422101474.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-28
Publication Date
2025-08-12
Estimated Expiration
2034-08-28

AI Technical Summary

Technical Problem

During the operation of the hot air circulation fan, the fan blades are thermally deformed or thermal stress cracked due to high temperatures, and need to be replaced in time, but the existing technology is difficult to quickly disassemble and maintain.

Method used

The air inlet filter plate and bundle-receiving tube structure is designed, and the connecting plate and engaging block connected by bolts is fixed to achieve rapid disassembly of the motor. The screw and fixed shaft structure prevent the components from being loose. The threaded connection between the screw and the fixed shaft is convenient for the disassembly of the fan blade, and the repair drawer in the storage box provides tool storage.

Benefits of technology

It improves the convenience of maintenance and replacement of the motor and the operation stability, ensures the safety of the motor, quickly replaces damaged fan blades, and improves the equipment maintenance effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a special motor for a hot air circulating fan, and the motor comprises a bearing unit which comprises a fixed pedestal and a storage box fixedly connected to the upper surface of the fixed pedestal; and the maintenance and replacement unit comprises a connecting plate fixedly connected to one side of the fixed base through bolts and an impeller box fixedly connected to one side of the connecting plate. Through the design of the air inlet filter plate and the collecting pipe, external air can effectively enter the impeller box, through the structures such as the connecting plate and the clamping block which are fixedly connected through bolts, the motor can be quickly disassembled when needing to be maintained or replaced, the convenience of maintenance and replacement is improved, normal operation of the motor is ensured, and the service life of the motor is prolonged. Through the structural design of the screw rod, the fixed shaft and the like, the motor performance is prevented from being affected due to component looseness in the operation process of the motor, the safety of the motor is improved, meanwhile, the fan blades can be quickly disassembled through the screw rod and the insertion rod, and the maintenance effect of equipment is improved to a certain degree.
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Description

Technical Field

[0001] The utility model relates to the technical field of special motor structures for hot air circulation fans, in particular to a special motor for hot air circulation fans. Background Art

[0002] As an indispensable and important equipment in modern industrial production, hot air circulation fans are widely used in many fields such as steel smelting, chemical production, food processing, agricultural greenhouses, etc. Its core component, the motor, is responsible for driving the impeller to rotate and realize the key task of air heating and circulation in the hot air circulation system.

[0003] Hot air circulation fans will generate high temperatures during operation, and the fan blades, as components that are in direct contact with the airflow, will be affected by temperature changes. Long-term high temperature exposure may cause thermal deformation or thermal stress cracking of the fan blade material. Therefore, the fan blades need to be replaced in a timely manner. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section and the abstract and title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above-mentioned problems existing in the existing motor dedicated to hot air circulation fans, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a special motor for hot air circulation fan, which is suitable for solving the problem that the hot air circulation fan will generate high temperature during operation, and the fan blades, as components that directly contact the airflow, will be affected by temperature changes. Long-term high temperature may cause thermal deformation or thermal stress cracking of the fan blade material. Therefore, the fan blades need to be replaced in time.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a motor for a hot air circulation fan, comprising:

[0008] A load-bearing unit comprising a fixed base and a storage box fixedly connected to an upper surface of the fixed base, wherein the upper surface of the fixed base is fixedly connected to a drive motor via a machine base;

[0009] A maintenance and replacement unit comprises a connecting plate fixedly connected to one side of a fixed base by bolts and an impeller box fixedly connected to one side of the connecting plate, one side of the impeller box is fixedly connected to an air outlet pipe, the side of the impeller box away from the drive motor is fixedly connected to an air inlet filter plate by a snap block, one side of the air inlet filter plate is fixedly connected to a convergence pipe, a shaft is rotatably connected inside the impeller box, and one end of the shaft is fixedly connected to a screw.

[0010] As an optimal solution for a special motor for a hot air circulation fan described in the utility model, wherein: a repair storage drawer is slidably connected to the storage box, a base is fixedly connected to the lower surface of the impeller box, a connecting rod is fixedly connected to the fixed base and the lower surface of the base, and an L-shaped mounting rod is fixedly connected to the lower surface of the connecting rod.

[0011] As a preferred solution of the special motor for hot air circulation fan described in the utility model, wherein: the outer surface of the screw is threadedly connected to a fixed shaft, and one side of the impeller box is fixedly connected to a fixed ring.

[0012] As a preferred solution of the special motor for hot air circulation fan described in the utility model, wherein: a sliding block is rotatably connected in the fixed ring, and one side of the fixed ring is fixedly connected to a limiting ring through an insertion rod.

[0013] As a preferred solution of the special motor for hot air circulation fan described in the utility model, the outer surface of the limit ring is fixedly connected to the fan blade, the upper surface of the storage box is fixedly connected to the bearing, and the shaft is rotatably connected in the bearing.

[0014] As a preferred solution of the special motor for hot air circulation fan described in the utility model, wherein: the shaft and one end of the driving motor are fixedly connected to a transmission wheel, and the outer surface of the transmission wheel is slidably connected to a belt.

[0015] Beneficial effects of the utility model:

[0016] The design of the air inlet filter plate and the convergent tube allows external air to effectively enter the impeller box. The connecting plate and the locking block connected by bolts allow the motor to be quickly disassembled when maintenance or replacement is required, which improves the convenience of maintenance and replacement. The structural design of the fixed base and the storage box ensures the stability of the motor during operation and ensures the normal operation of the motor. The structural design of the screw and the fixed shaft prevents the motor performance from being affected by loose components during operation, thereby improving the safety of the motor. At the same time, the screw and the insertion rod are used to enable the fan blades to be quickly disassembled, thereby improving the maintenance effect of the equipment to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of a special motor for hot air circulation fan proposed in the utility model;

[0019] Figure 2 This is a schematic diagram of the connecting rod connection structure of a special motor for a hot air circulation fan proposed in the utility model;

[0020] Figure 3 This is a structural schematic diagram of a maintenance and replacement unit for a special motor for a hot air circulation fan proposed in the utility model.

[0021] Description of the drawings: 100, load-bearing unit; 101, fixed base; 102, storage box; 103, drive motor; 104, repair storage drawer; 105, connecting rod; 106, L-shaped mounting rod; 200, maintenance and replacement unit; 201, connecting plate; 202, air outlet duct; 203, impeller box; 204, base; 205, air inlet filter plate; 206, locking block; 207, transmission wheel; 208, shaft; 209, fan blade; 210, fixed shaft; 211, convergence tube; 212, screw; 213, limiting ring; 214, insertion rod; 215, fixing ring; 216, sliding block. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objectives, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" herein refers to specific features, structures, or characteristics that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to an embodiment that is, individually or selectively, mutually exclusive of other embodiments.

[0025] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0026] Reference Figure 1 - Figure 3 , which is an embodiment of the present utility model, provides a motor dedicated to a hot air circulation fan, including a load-bearing unit 100 and a maintenance and replacement unit 200.

[0027] The load-bearing unit 100 includes a fixed base 101 and a storage box 102 fixedly connected to the upper surface of the fixed base 101. The upper surface of the fixed base 101 is fixedly connected to a drive motor 103 via a machine base. A repair storage drawer 104 is slidably connected to the storage box 102. The lower surface of the impeller box 203 is fixedly connected to the base 204. The lower surfaces of the fixed base 101 and the base 204 are fixedly connected to a connecting rod 105. The lower surface of the connecting rod 105 is fixedly connected to an L-shaped mounting rod 106.

[0028] The maintenance and replacement unit 200 includes a connecting plate 201 fixedly connected to one side of the fixed base 101 by bolts and an impeller box 203 fixedly connected to one side of the connecting plate 201. One side of the impeller box 203 is fixedly connected to the air outlet pipe 202. The side of the impeller box 203 away from the drive motor 103 is fixedly connected to the air inlet filter plate 205 through a snap block 206. One side of the air inlet filter plate 205 is fixedly connected to a convergence tube 211. A shaft 208 is rotatably connected to the impeller box 203. One end of the shaft 208 is fixedly connected to a screw 212. The screw 21 A fixed shaft 210 is threadedly connected to the outer surface of the impeller box 203. A fixed ring 215 is fixedly connected to one side of the impeller box 203. A sliding block 216 is rotatably connected to the fixed ring 215. A limit ring 213 is fixedly connected to one side of the fixed ring 215 via an insertion rod 214. The outer surface of the limit ring 213 is fixedly connected to the fan blade 209. A bearing is fixedly connected to the upper surface of the storage box 102, and a shaft 208 is rotatably connected to the bearing. A transmission wheel 207 is fixedly connected to one end of the shaft 208 and the drive motor 103. A belt is slidably connected to the outer surface of the transmission wheel 207.

[0029] When the equipment is operating normally, when the hot air circulation fan is working, the drive motor 103 drives the shaft 208 to rotate through the transmission wheel 207 and the belt, and the fan blades 209 on the shaft 208 rotate with the shaft 208, sucking air into the impeller box 203. After the air is filtered by the air inlet filter plate 205, it enters the interior of the impeller box 203. Since the air pressure inside the impeller box 203 is relatively high, the air is discharged through the air outlet pipe 202, forming a hot air circulation;

[0030] The structural design of the screw 212 and the fixed shaft 210 ensures the stability and safety of the motor during operation. At the same time, the threaded connection between the screw 212 and the fixed shaft 210 is used to allow the insertion rod 214 to release the connection between the limit ring 213 and the fixed ring 215. The fan blade 209 and the fixed shaft 210 can then be disassembled as a whole through the thread, so that the device can quickly replace the damaged fan blade 209.

[0031] At the same time, when the motor needs maintenance or replacement, the motor can be quickly disassembled by loosening the connecting plate 201 and the locking block 206 and other structures fixed with bolts, thereby achieving convenience in maintenance and replacement. In addition, the repair storage drawer 104 in the storage box 102 can conveniently store tools and spare parts, providing convenience for maintenance personnel.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A motor for hot air circulation fan, characterized in that: include: A load-bearing unit (100) comprises a fixed base (101) and a storage box (102) fixedly connected to the upper surface of the fixed base (101); the upper surface of the fixed base (101) is fixedly connected to a driving motor (103) via a machine base; A maintenance and replacement unit (200) comprises a fixed base (101) having a connecting plate (201) fixedly connected to one side thereof by bolts, and an impeller box (203) fixedly connected to one side of the connecting plate (201), wherein one side of the impeller box (203) is fixedly connected to an air outlet pipe (202), a side of the impeller box (203) away from the drive motor (103) is fixedly connected to an air inlet filter plate (205) by a snap-fit block (206), one side of the air inlet filter plate (205) is fixedly connected to a convergence tube (211), a shaft (208) is rotatably connected in the impeller box (203), and one end of the shaft (208) is fixedly connected to a screw (212).

2. A motor for hot air circulation fan according to claim 1, characterized in that: A repair storage drawer (104) is slidably connected to the storage box (102), a base (204) is fixedly connected to the lower surface of the impeller box (203), a connecting rod (105) is fixedly connected to the lower surface of the fixed base (101) and the base (204), and an L-shaped mounting rod (106) is fixedly connected to the lower surface of the connecting rod (105).

3. The motor for hot air circulation fan according to claim 1, characterized in that: The outer surface of the screw (212) is threadedly connected to a fixed shaft (210), and one side of the impeller box (203) is fixedly connected to a fixed ring (215).

4. The motor for hot air circulation fan according to claim 3, characterized in that: A sliding block (216) is rotatably connected inside the fixing ring (215), and one side of the fixing ring (215) is fixedly connected to the limiting ring (213) via an insertion rod (214).

5. The motor for hot air circulation fan according to claim 4, characterized in that: The outer surface of the limiting ring (213) is fixedly connected to a fan blade (209), the upper surface of the storage box (102) is fixedly connected to a bearing, and the shaft (208) is rotatably connected inside the bearing.

6. The motor for hot air circulation fan according to claim 1, characterized in that: One end of the shaft (208) and the drive motor (103) are both fixedly connected to a transmission wheel (207), and the outer surface of the transmission wheel (207) is slidably connected to a belt.