A bearing assembly for a fan motor

Abstract

A bearing assembly device for a fan motor includes a conveyor turntable with a mounting seat for placing a fan assembly. A pressing mechanism is located above the pressing station of the conveyor turntable and includes a base plate with a feeding hole. An elastic rubber ring is installed along the upper edge of the feeding hole to support the bearing. A surrounding plate is provided on the front, rear, and right sides of the feeding hole along the upper edge of the base plate to form a material groove. A pressure rod is provided above the feeding hole, and a magnetic ring is provided at the bottom of the pressure rod. A bearing directional feeding mechanism is located outside the pressing mechanism and includes a material rack with a guide groove on its upper part. The right end of the guide groove connects to the opening end of the material groove. During operation, the bearings on the material rack move sequentially to the top of the feeding hole on the base plate and are supported by the elastic rubber ring. After the pressure rod moves down, it adheres to and positions the bearing, pressing it through the feeding hole and interfering with the stator bearing seat in the fan assembly. This device provides accurate bearing positioning and, in conjunction with the bearing directional feeding mechanism, achieves continuous feeding, effectively improving assembly efficiency.

Description

Technical Field

[0001] This utility model relates to a bearing assembly device for a fan motor. Background Technology

[0002] Cooling fans operate based on the principle of electromagnetic induction. Their technical specifications include airflow, air pressure, speed, and noise levels. They are evolving towards higher efficiency, intelligence, and environmental friendliness, and are widely used in electronics, industry, new energy, medical, and other fields. The motor is the core component of the fan. Current external rotor motors used in fans generally consist of a stator and a rotor. The stator is fixed to a stator bearing seat in the middle of the housing. The stator bearing seat has a main shaft hole inside, which typically houses a bushing or bearing. Winding coils are installed outside the stator bearing seat. The bearings inside the stator bearing seat are installed with an interference fit. Currently, the assembly of these bearings is mostly done manually, which results in low assembly efficiency due to the small size of the bearings and the difficulty in positioning them. Utility Model Content

[0003] To address the shortcomings mentioned above, this utility model provides a bearing assembly device for a fan motor.

[0004] To achieve the above objectives, this utility model provides a bearing assembly device for a fan motor, including...

[0005] A conveyor turntable is provided with positioning seats evenly installed near the circumference of the turntable. The upper part of the positioning seat is machined with positioning grooves for placing fan components. The conveyor turntable is provided with a feeding station, a pressing station and a discharging station in sequence along the counterclockwise rotation direction.

[0006] A pressing mechanism is provided above the pressing station. The pressing mechanism includes a base plate with a feeding hole machined in the middle. An elastic rubber ring is installed on the upper inner edge of the feeding hole to support the bearing. A surrounding plate is provided on the front, back, and right sides of the feeding hole along the base plate. The surrounding plate forms a material groove for accommodating the bearing. The material groove extends to the left side of the base plate. A pressure rod is provided above the feeding hole. A magnetic suction ring is embedded at the bottom of the pressure rod. A lifting plate is connected to the upper part of the pressure rod.

[0007] A bearing directional feeding mechanism includes a material rack with a guide groove on the upper part of the material rack along the horizontal direction. The bearings are arranged in a horizontal structure and placed in the guide groove, moving from left to right. The right end of the guide groove is connected to the left opening end of the material trough. A flat feeder is connected to the bottom of the material rack.

[0008] As a further improvement of this utility model, the inner diameter of the elastic rubber ring is smaller than the outer diameter of the bearing.

[0009] As a further improvement of this utility model, the width of the material groove is matched with the outer diameter of the bearing.

[0010] As a further improvement of this utility model, the bottom center of the pressure rod extends axially to form an integral guide head, the outer diameter of the guide head matches the inner diameter of the bearing, the lower part of the guide head is chamfered, and the outer diameter of the pressure rod matches the outer diameter of the bearing.

[0011] As a further improvement of this utility model, an upper fixed seat is provided above the lifting plate, a cylinder is installed on the upper part of the upper fixed seat, the end of the cylinder rod of the cylinder is fixed to the lifting plate, the base plate is connected and fixed to the upper fixed seat through a column, and the two sides of the lifting plate are slidably engaged with the column.

[0012] As a further improvement of this utility model, pressure blocks are symmetrically provided at both sides of the lifting plate, and the upper part of the pressure blocks is connected to the lifting plate through an elastic telescopic rod.

[0013] As a further improvement of this utility model, pressure strips are symmetrically installed on the front and rear sides of the upper part of the material rack.

[0014] The beneficial effects of this utility model are as follows:

[0015] In this device, the bearing is accurately positioned and continuously fed in conjunction with the bearing directional feeding mechanism. The bearing is supported by the inner edge of the elastic rubber ring. The pressure rod attracts the bearing and then opens the elastic rubber ring, driving the pressure rod to pass through the feeding hole and press into the stator shaft seat in the fan assembly for interference fit. This automatically completes the assembly process of the bearing and stator shaft seat, effectively improving assembly efficiency. Attached Figure Description

[0016] Figure 1 This is a front view of a bearing assembly device for a fan motor according to the present invention.

[0017] Figure 2 Top view of conveyor turntable 1;

[0018] Figure 3 This is an assembly structure diagram of the pressing mechanism 4 and the bearing directional feeding mechanism 6;

[0019] Figure 4 for Figure 3 Top view;

[0020] Figure 5 for Figure 4 Sectional view along line AA in the middle;

[0021] Figure 6 This is a bottom view of the lifting platform 45.

[0022] Figure 7 This is a schematic diagram of the 12 pressing stations;

[0023] Figure 8 This is a schematic diagram of the fan assembly 3.

[0024] In the diagram: 1. Conveying turntable; 11. Feeding station; 12. Pressing station; 13. Discharging station; 2. Positioning seat; 21. Positioning groove; 3. Fan assembly; 31. Housing; 32. Stator shaft seat; 33. Stepped section; 34. Stator assembly; 4. Pressing mechanism; 41. Base plate; 411. Discharge hole; 412. Elastic rubber ring; 42. Enclosure plate; 43. Material trough; 44. Pressure rod; 441. Guide head; 442. Magnetic ring; 45. Lifting plate; 46. Column; 47. Upper fixed seat; 48. Cylinder; 49. Pressing block; 491. Elastic telescopic rod; 5. Bearing; 6. Bearing directional feeding mechanism; 61. Material rack; 62. Guide groove; 63. Pressing strip; 64. Flat conveyor. Detailed Implementation

[0025] like Figure 1 As shown, the bearing assembly device for a fan motor according to this utility model includes...

[0026] Conveying turntable 1, with positioning seats 2 evenly installed near the circumference of the conveying turntable 1. Positioning slots 21 are machined on the upper part of the positioning seats 2 for placing fan assembly 3. The conveying turntable 1 is provided with feeding station 11, pressing station 12, and discharging station 13 in sequence along the counterclockwise rotation direction (see Figure 2 The bottom center of the conveyor turntable 1 is mounted on the cam divider;

[0027] Pressing mechanism 4 is located above pressing station 12. Pressing mechanism 4 includes a base plate 41 with a feeding hole 411 machined in the middle. An elastic rubber ring 412 is installed on the upper inner edge of the feeding hole 411 to support the bearing 5. The inner diameter of the elastic rubber ring 412 is smaller than the outer diameter of the bearing 5. Surrounding plates 43 are provided on the front, back, and right sides of the feeding hole 411 along the upper edge of the base plate 41. The surrounding plates 43 form a material groove 43 for accommodating the bearing 5. The material groove 43 extends to the left side of the base plate 41. The width of the material groove 43 matches the outer diameter of the bearing 5. A pressure rod 44 is provided above the feeding hole 411. A magnetic ring 442 is embedded in the bottom of the pressure rod 44. A guide head 441 is formed by axially extending from the center. The outer diameter of the guide head 441 matches the inner diameter of the bearing 5. The lower part of the guide head 441 is chamfered. The outer diameter of the pressure rod 44 matches the outer diameter of the bearing 5. The upper part of the pressure rod 44 is connected to the lifting plate 45. An upper fixed seat 47 is provided above the lifting plate 45. A cylinder 48 is installed on the upper fixed seat 47. The end of the cylinder rod of the cylinder 48 is fixed to the lifting plate 45. The base plate 41 and the upper fixed seat 47 are connected and fixed by a column 46. The two sides of the lifting plate 45 are in sliding fit with the column 46. Pressure blocks 49 are symmetrically provided on the two sides of the lifting plate 45. The upper part of the pressure blocks 49 is connected to the lifting plate 45 by an elastic telescopic rod 491 (see...). Figure 3-6 );

[0028] The bearing directional feeding mechanism 6 includes a material rack 61. A guide groove 62 is provided horizontally on the upper part of the material rack 61. Bearings 5 ​​are arranged horizontally and placed within the guide groove 62, moving from left to right. The right end of the guide groove 62 connects to the left opening end of the material trough 43. A flat feeder 64 is connected to the bottom of the material rack 61. Edge pressing strips 63 are symmetrically installed on the front and rear sides of the upper part of the material rack 61 (see...). Figure 3-5 ).

[0029] In this device, the bearing is accurately positioned and continuously fed in conjunction with the bearing directional feeding mechanism. The bearing is supported by the inner edge of the elastic rubber ring. The pressure rod attracts the bearing and then opens the elastic rubber ring, driving the pressure rod to pass through the feeding hole and press into the stator shaft seat in the fan assembly for interference fit. This automatically completes the assembly process of the bearing and stator shaft seat, effectively improving assembly efficiency.

[0030] In practical use, for ease of understanding of this utility model, it will be described in conjunction with the accompanying drawings;

[0031] like Figure 8 As shown, the fan assembly 3 includes a housing 31, an integral stator bearing seat 32 is provided in the middle of the housing 31, a stator assembly 34 is fixed on the outside of the stator bearing seat 32, and a stepped portion 33 is machined on the upper part of the inner hole of the stator bearing seat 32. The device in this embodiment is mainly used to assemble the bearing 5 at the stepped portion 33 to form an interference fit. The bearing 5 is used to form a rotational fit with the rotating shaft in the impeller assembly.

[0032] During operation, each rotation of the conveyor turntable moves one workstation. At the feeding station, the fan assembly is placed in the positioning slot of the positioning seat manually or by a robotic arm, with the stator shaft facing upwards. The fan assembly rotates with the conveyor turntable to the pressing station, where the horizontally arranged bearings are placed in the guide slots of the material rack. Under the vibration of the flat conveyor, the bearings are always subjected to a horizontal force to the right. The bearings move along the guide slots from left to right into the material trough of the bottom plate. The rightmost bearing is pushed above the discharge hole and supported by an elastic rubber ring (the bearing is relatively light, with an outer diameter of about 5mm). The cylinder drives the lifting plate to move downwards as a whole, and the guide head at the bottom of the pressure rod extends into the inner hole of the lower bearing. The bearing and the bottom of the pressure rod... The magnetic ring is used for adsorption and positioning. As the pressure rod continues to move downward, the lower edge of the bearing exerts an outward squeezing force on the elastic rubber ring, causing the elastic rubber ring to deform elastically, thus allowing the bearing and pressure rod to pass through. The pressure rod drives the bearing through the feeding hole. Then, the pressure block first presses down on the housing of the fan assembly, and the pressure rod then presses the bearing into the stepped position on the upper part of the stator shaft seat to form an interference fit. After assembly, the pressure rod moves upward and resets. The elastic memory of the elastic telescopic rod is used to separate the pressure rod and the bearing. After the pressure rod moves out of the material groove position on the base plate, the next bearing is pushed onto the elastic rubber ring above the feeding hole, waiting for the next pressing process. After assembly, the fan assembly rotates with the conveyor turntable to the discharge station and can be removed.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bearing assembly device for a fan motor, characterized in that, include: A conveying turntable (1) is provided with positioning seats (2) evenly installed near the circumference of the conveying turntable (1). The positioning seats (2) have positioning grooves (21) machined on the upper part for placing fan components (3). The conveying turntable (1) is provided with a feeding station (11), a pressing station (12), and a discharging station (13) in sequence along the counterclockwise rotation direction. Pressing mechanism (4), the pressing mechanism (4) is located above the pressing station (12), the pressing mechanism (4) includes a base plate (41), a feeding hole (411) is machined in the middle of the base plate (41), an elastic rubber ring (412) is installed on the upper edge of the inner side of the feeding hole (411) to support the bearing (5), a surrounding plate (42) is provided on the front, back and right sides of the feeding hole (411) on the upper edge of the base plate (41), the surrounding plate (42) forms a material groove (43) for accommodating the bearing (5), the material groove (43) extends to the left side of the base plate (41), a pressure rod (44) is provided above the feeding hole (411), a magnetic suction ring (442) is embedded at the bottom of the pressure rod (44), and a lifting plate (45) is connected to the upper part of the pressure rod (44); The bearing directional feeding mechanism (6) includes a material rack (61). The upper part of the material rack (61) is provided with a guide groove (62) in the horizontal direction. The bearings (5) are arranged in a horizontal structure and placed in the guide groove (62) and move from left to right. The right end of the guide groove (62) is connected to the left opening end of the material trough (43). The bottom of the material rack (61) is connected to a flat feeder (64).

2. The bearing assembly device for a fan motor according to claim 1, characterized in that: The inner diameter of the elastic rubber ring (412) is smaller than the outer diameter of the bearing (5).

3. The bearing assembly device for a fan motor according to claim 1, characterized in that: The width of the feed trough (43) matches the outer diameter of the bearing (5).

4. The bearing assembly device for a fan motor according to claim 1, characterized in that: The pressure rod (44) extends axially at the center of its bottom to form an integral guide head (441). The outer diameter of the guide head (441) matches the inner diameter of the bearing (5). The lower part of the guide head (441) is chamfered. The outer diameter of the pressure rod (44) matches the outer diameter of the bearing (5).

5. The bearing assembly device for a fan motor according to claim 1, characterized in that: An upper fixed seat (47) is provided above the lifting plate (45). A cylinder (48) is installed on the upper part of the upper fixed seat (47). The cylinder rod end of the cylinder (48) is fixed to the lifting plate (45). The base plate (41) is connected and fixed to the upper fixed seat (47) through a column (46). The two sides of the lifting plate (45) are in sliding fit with the column (46).

6. The bearing assembly device for a fan motor according to claim 1, characterized in that: The lifting plate (45) is symmetrically provided with pressure blocks (49) on both sides of the edge, and the upper part of the pressure block (49) is connected to the lifting plate (45) through an elastic telescopic rod (491).

7. The bearing assembly device for a fan motor according to claim 1, characterized in that: The material rack (61) is symmetrically equipped with pressing strips (63) on the front and rear sides of the upper part.

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