Fan assembly structure convenient for motor maintenance
The combination design of cylindrical shell, arc-shaped cover plate and limiting ring realizes convenient disassembly and maintenance of axial flow fan motor, solves the problem of cumbersome motor fault maintenance in the existing technology, and improves maintenance convenience and structural stability.
Patent Information
- Application Number
- CN202422707845.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-07
AI Technical Summary
The maintenance of motor faults in existing axial flow fans is cumbersome, requiring the entire fan to be disassembled for inspection and maintenance, which lacks convenience.
It adopts a cylindrical shell, arc-shaped cover plate, limit ring and bracket structure. The arc-shaped cover plate is fixed by the limit ring, which realizes the individual disassembly and maintenance of the motor and facilitates the quick assembly and disassembly of the motor.
It simplifies the disassembly and maintenance process of the motor, improves the convenience of operation and maintenance efficiency, and ensures that the motor and the housing are concentric, resulting in good structural stability.
Smart Images

Figure CN223498193U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wind turbine technology, and in particular to a wind turbine assembly structure that facilitates motor maintenance. Background Technology
[0002] For a compact structure, the motor can be installed inside the fan casing. The motor drives the impeller to rotate, making the airflow direction parallel to the motor's axis, thus forming an axial flow fan. Although compact in structure, the axial flow fan facilitates heat dissipation for the motor inside the casing and offers high operational stability.
[0003] During construction, axial flow fans can be connected in series on two duct sections, with both ends of the casing connected to the ducts to form an air supply system. Since the motor is built into the fan casing, if the motor fails, the entire fan needs to be dismantled to remove the motor for inspection and maintenance, making the process cumbersome and requiring improvement. Utility Model Content
[0004] The purpose of this utility model is to provide a fan assembly structure that facilitates motor maintenance, making assembly easier and improving the convenience of motor disassembly and maintenance.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] A fan assembly structure for easy motor maintenance includes: a cylindrical shell, an arc-shaped cover plate, a motor, and a limiting ring. The outer wall of the cylindrical shell has an inwardly recessed arc-shaped groove corresponding to the arc-shaped cover plate and communicating with the inner cavity of the cylindrical shell. The arc-shaped cover plate is disposed in the arc-shaped groove. A retaining groove extending along the edge of the arc-shaped groove is inwardly recessed on the outer wall of the cylindrical shell. A filler corresponding to the retaining groove is disposed on the edge of the arc-shaped cover plate. The limiting ring is concentrically fitted on the outer circumference of the cylindrical shell and located on both sides of the arc-shaped cover plate to limit the filler. A bracket extending into the cylindrical shell is disposed on the inner side of the arc-shaped cover plate. The motor is mounted on the bracket, and an impeller is disposed at the end of the motor's shaft.
[0007] The arc of the arc-shaped cover plate is 180°.
[0008] Flanges are provided at both ends of the cylindrical shell.
[0009] The bracket is equipped with a first screw for fixing the motor.
[0010] The limiting ring is provided with a second screw that connects to the cylindrical shell, and the cylindrical shell is provided with a threaded hole corresponding to the second screw.
[0011] The top of the arc-shaped cover plate is provided with a lifting ring.
[0012] The motor shaft is concentric with the cylindrical housing.
[0013] The beneficial effects of this utility model are as follows: A fan assembly structure that facilitates motor maintenance uses a bracket to fix the motor and an arc-shaped cover plate to fix the bracket in the cylindrical shell, ensuring that the motor shaft is concentric with the cylindrical shell. Assembly is convenient. The limit ring is used to restrain the filler and fix the arc-shaped cover plate, resulting in a stable structure. During disassembly, simply move the limit ring outward to pull up the arc-shaped cover plate and remove the motor for individual testing and maintenance. The operation is simple. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 yes Figure 1 A sectional view;
[0016] Figure 3 yes Figure 2 A structural diagram illustrating the assembly and disassembly process of the arc-shaped cover plate. Detailed Implementation
[0017] The following is combined with Figures 1-3 The technical solution of this utility model will be further illustrated through specific embodiments.
[0018] like Figure 1 and Figure 2 The fan assembly structure shown is convenient for motor maintenance and includes: a cylindrical shell 1, an arc-shaped cover plate 2, a motor 10 and a limiting ring 3. The cylindrical shell 1 is provided with flanges 5 at both ends for easy connection with pipelines to form an air supply system.
[0019] An arc-shaped groove 11, corresponding to the arc-shaped cover plate 2 and communicating with the inner cavity of the cylindrical shell 1, is recessed on the outer wall of the cylindrical shell 1. The arc-shaped cover plate 2 is disposed in the arc-shaped groove 11, which facilitates assembly. In this embodiment, a lifting ring 13 is provided on the top of the arc-shaped cover plate 2 to facilitate the hoisting of the arc-shaped cover plate 2 and to reduce the effort required for disassembly and assembly.
[0020] In this embodiment, the arc-shaped cover plate 2 has an arc of 180° and a semi-circular cross-section. A groove 6 extending along the edge of the arc-shaped groove 11 is recessed into the outer wall of the cylindrical shell 1. A filler 7 corresponding to the groove 6 is provided along the edge of the arc-shaped cover plate 2, ensuring a tight fit and good airtightness. The filler 7 and the arc-shaped cover plate 2 can be an integrated steel structure with high strength.
[0021] To prevent the arc-shaped cover plate 2 from loosening, the limiting ring 3 is concentrically fitted onto the outer circumference of the cylindrical shell 1 and positioned on both sides of the arc-shaped cover plate 2 to limit the filling component 7. The limiting ring 3 binds the filling component 7, thus fixing the arc-shaped cover plate 2. The structure is stable, and during disassembly, as... Figure 3 As shown, the arc-shaped cover plate 2 can be quickly disassembled by simply moving the limiting ring 3 laterally outward.
[0022] like Figure 2 and Figure 3 As shown, the limiting ring 3 is provided with a second screw 4 that connects to the cylindrical housing 1. The cylindrical housing 1 is provided with a threaded hole 8 corresponding to the second screw 4, which is convenient for disassembly and assembly. The limiting ring 3 is fixed by the second screw 4 to prevent lateral movement and loosening.
[0023] A bracket 9 extending into the cylindrical shell 1 is provided on the inner side of the arc-shaped cover plate 2. The motor 10 is mounted on the bracket 9, and a first screw 14 for fixing the motor 10 is provided on the bracket 9, resulting in a stable structure. An impeller 12 is provided at the end of the rotating shaft of the motor 10. In this embodiment, the rotating shaft of the motor 10 is concentric with the cylindrical shell 1. Figure 2 As shown, it forms an axial flow fan.
[0024] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of this utility model. The content of this specification should not be construed as a limitation of this utility model.
Claims
1. A fan assembly structure that facilitates motor maintenance, characterized in that, include: The device comprises a cylindrical shell, an arc-shaped cover plate, a motor, and a limiting ring. The outer wall of the cylindrical shell has an inwardly recessed arc-shaped groove corresponding to the arc-shaped cover plate and communicating with the inner cavity of the cylindrical shell. The arc-shaped cover plate is disposed within the arc-shaped groove. A retaining groove extending along the edge of the arc-shaped groove is also inwardly recessed on the outer wall of the cylindrical shell. A retaining ring, corresponding to the retaining groove, is disposed on the edge of the arc-shaped cover plate. The limiting ring is concentrically fitted onto the outer circumference of the cylindrical shell and located on both sides of the arc-shaped cover plate to limit the retaining material. A bracket extending into the cylindrical shell is disposed on the inner side of the arc-shaped cover plate. The motor is mounted on the bracket, and an impeller is disposed at the end of the motor's shaft.
2. The fan assembly structure for easy motor maintenance according to claim 1, characterized in that, The arc of the arc-shaped cover plate is 180°.
3. The fan assembly structure for easy motor maintenance according to claim 1, characterized in that, Flanges are provided at both ends of the cylindrical shell.
4. The fan assembly structure for easy motor maintenance according to claim 1, characterized in that, The bracket is equipped with a first screw for fixing the motor.
5. The fan assembly structure for easy motor maintenance according to claim 1, characterized in that, The limiting ring is provided with a second screw that connects to the cylindrical shell, and the cylindrical shell is provided with a threaded hole corresponding to the second screw.
6. The fan assembly structure for easy motor maintenance according to claim 1, characterized in that, The top of the arc-shaped cover plate is equipped with a lifting ring.
7. The fan assembly structure for easy motor maintenance according to claim 1, characterized in that, The motor shaft is concentric with the cylindrical housing.