A bearing mounting structure

Abstract

The utility model relates to a bearing installation structure belongs to fan bearing installation technical field, including cylinder shell, one end of cylinder shell is provided with installation back frame, one end of cylinder shell is fixedly connected with installation back frame through back cambered board, the inside of installation back frame is provided with installation backplate, one side of installation backplate is provided with bearing installation subassembly, bearing installation subassembly includes the installation sleeve fixedly installed one side of installation backplate, the inside rotation of installation sleeve is installed with drive shaft, the inboard wall of installation sleeve is embedded with plastic cover, the inside of installation sleeve is embedded with front end bearing and tail end bearing. This bearing installation structure, through setting up plastic cover in the inside of installation sleeve, through the support of plastic cover to front end bearing and tail end bearing, through the protection of plastic cover to drive shaft, prevent drive shaft and the contact of the component except front end bearing and tail end bearing, prevent the abnormal sound of fan work.

Description

Technical Field

[0001] This utility model relates to the field of fan bearing installation technology, specifically a bearing installation structure. Background Technology

[0002] Fan bearings are the core components of a fan, directly affecting its performance and lifespan. Common types include oil-impregnated bearings, double ball bearings, and hydraulic bearings. Oil-impregnated bearings are low-cost, using porous materials for oil storage and lubrication, but they are prone to wear and increased noise over long-term use. Double ball bearings use steel balls to support rotation, offering high wear resistance and a long lifespan, but they are noisier and more expensive. Hydraulic bearings combine the advantages of oil-impregnated and ball bearings, using special lubricants and structures to reduce noise while extending lifespan, and are commonly used in mid-to-high-end fans. When choosing a fan, noise, lifespan, and cost must be weighed. For example, computer cooling fans often use hydraulic bearings to balance performance and quiet operation.

[0003] Utility model patent CN207485725U discloses an air conditioner fan bearing mounting structure, including a bearing mounting base body. The bearing mounting base body is provided with a groove corresponding to the lower part of the bearing. The opening of the groove allows the bearing to be installed in the direction perpendicular to its axis. Side ears are provided on both sides of the opening of the groove to press against the upper outer ring of the bearing. During assembly, when the rubber bearing is installed, it can be compressed and deformed to be inserted into the groove between the two side ears. After the bearing is installed in the groove, it returns to its shape and is fixed by pressing against the side ears, thus completing the fixing of the bearing. The structure is simple and effectively prevents it from falling off, making it convenient for production and maintenance.

[0004] However, in common fan bearing mounting structures, the bearings are usually placed in the mounting groove, which makes it easy for the fan shaft to come into contact with the inner wall of the mounting structure or other objects, causing abnormal noise when the fan is working. Therefore, a bearing mounting structure is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a bearing mounting structure that has advantages such as preventing the rotating shaft from contacting other structures, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A bearing mounting structure includes a cylindrical outer shell, one end of which is provided with a mounting back frame. One end of the cylindrical outer shell is fixedly connected to the mounting back frame via a back arc plate. The mounting back frame is provided with a mounting back plate inside, and a bearing mounting assembly is provided on one side of the mounting back plate.

[0008] The bearing mounting assembly includes a mounting sleeve fixedly mounted on one side of the mounting back plate. A drive shaft is rotatably mounted inside the mounting sleeve. A plastic sleeve is embedded in the inner side wall of the mounting sleeve. A front bearing and a tail bearing are embedded inside the mounting sleeve. The front bearing and the tail bearing are located at both ends of the plastic sleeve, respectively. The drive shaft passes through the plastic sleeve, the front bearing, and the tail bearing.

[0009] Furthermore, four mounting rods are fixedly installed on the inner side wall of the mounting back frame, and a mounting ring is fixedly installed at one end of each mounting rod. The mounting back plate is fixedly installed inside the mounting ring.

[0010] Furthermore, a contact head is fixedly installed at one end of the drive shaft, and the contact head contacts one side of the mounting back plate. The inner diameter of the plastic sleeve is larger than the inner diameter of the front bearing and the tail bearing.

[0011] Furthermore, a mounting frame is provided at the end of the cylindrical outer shell away from the mounting back frame, and one end of the cylindrical outer shell is fixedly connected to the mounting frame through a front arc plate.

[0012] Furthermore, a rotating sleeve is fixedly installed at the end of the drive shaft away from the contact head, and a coil mounting cavity is directly provided between the rotating sleeve and the mounting sleeve.

[0013] Furthermore, fan blades are fixedly installed on the surface of the rotating sleeve, and back mounting holes are provided at the four corners of the mounting back frame.

[0014] Furthermore, front mounting holes are provided at all four corners of the mounting frame, and reinforcing side plates are fixedly installed between the mounting back frame and the mounting frame.

[0015] Compared with the prior art, the present invention provides a bearing mounting structure with the following advantages:

[0016] This bearing mounting structure uses a plastic sleeve inside the mounting sleeve to support the front and rear bearings and protect the drive shaft. This prevents the drive shaft from contacting components other than the front and rear bearings, thus preventing abnormal noise from the fan. It solves the problem in common fan bearing mounting structures where the bearings are usually placed in the mounting slot, making it easy for the fan shaft to come into contact with the inner wall of the mounting structure or other objects, resulting in abnormal noise during fan operation. Attached Figure Description

[0017] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0018] Figure 2 This is a rear three-dimensional view of the structure of this utility model;

[0019] Figure 3 This is a three-dimensional cross-sectional view of the structure of this utility model;

[0020] Figure 4 This is a front sectional view of the mounting sleeve of this utility model.

[0021] In the diagram: 1. Cylindrical outer shell; 2. Mounting back frame; 3. Mounting front frame; 4. Back arc plate; 5. Front arc plate; 6. Mounting connecting rod; 7. Mounting ring; 8. Mounting back plate; 9. Mounting sleeve; 10. Drive shaft; 101. Contact round head; 11. Plastic sleeve; 12. Front bearing; 13. Tail bearing; 14. Rotating sleeve; 15. Coil mounting cavity; 16. Fan blade; 17. Back mounting hole; 18. Front mounting hole; 19. Reinforcing side plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 4 The bearing mounting structure in this embodiment includes a cylindrical shell 1, a mounting back frame 2 at one end of the cylindrical shell 1, and a mounting back plate 8 inside the mounting back frame 2, and a bearing mounting assembly on one side of the mounting back plate 8.

[0024] The bearing mounting assembly includes a mounting sleeve 9 fixedly mounted on one side of the mounting back plate 8. A drive shaft 10 is rotatably mounted inside the mounting sleeve 9. A plastic sleeve 11 is embedded in the inner side wall of the mounting sleeve 9. A front bearing 12 and a tail bearing 13 are embedded inside the mounting sleeve 9. The front bearing 12 and the tail bearing 13 are located at both ends of the plastic sleeve 11, respectively. The drive shaft 10 passes through the plastic sleeve 11, the front bearing 12, and the tail bearing 13.

[0025] Specifically, the front bearing 12 and the rear bearing 13 are limited by the plastic sleeve 11. The plastic sleeve 11 is fitted on the surface of the drive shaft 10 to protect the drive shaft 10. When the drive shaft 10 rotates, it does not come into contact with other external structures, thus preventing abnormal noise from occurring when the drive shaft 10 rotates.

[0026] Please see Figure 2 In this embodiment, four mounting rods 6 are fixedly installed on the inner side wall of the mounting back frame 2. One end of the mounting rod 6 is fixedly installed with a mounting ring 7, and the mounting back plate 8 is fixedly installed inside the mounting ring 7.

[0027] Please see Figure 4 In this embodiment, a contact head 101 is fixedly installed at one end of the drive shaft 10. The contact head 101 contacts one side of the mounting back plate 8. The inner diameter of the plastic sleeve 11 is larger than the inner diameter of the front bearing 12 and the tail bearing 13.

[0028] Please see Figure 1 In this embodiment, a mounting frame 3 is provided at the end of the cylindrical shell 1 away from the mounting back frame 2, and one end of the cylindrical shell 1 is fixedly connected to the mounting frame 3 through the front arc plate 5.

[0029] Please see Figure 3 and Figure 4 In this embodiment, a rotating sleeve 14 is fixedly installed at the end of the drive shaft 10 away from the contact round head 101, and a coil mounting cavity 15 is directly provided between the rotating sleeve 14 and the mounting sleeve 9.

[0030] The rotating sleeve 14 has a fan blade 16 fixedly mounted on its surface, and the mounting back frame 2 has back mounting holes 17 at each of its four corners. The coil is installed inside the coil mounting cavity 15. When the coil is energized, it drives the drive shaft 10 to rotate, which in turn drives the rotating sleeve 14 to rotate, and then drives the fan blade 16 to rotate.

[0031] Secondly, front mounting holes 18 are provided at all four corners of the mounting frame 3, and a reinforcing side plate 19 is fixedly installed between the mounting back frame 2 and the mounting front frame 3. The rear mounting holes 17 and the front mounting holes 18 facilitate the installation of the fan in different directions.

[0032] The working principle of the above embodiment is as follows: the front bearing 12 and the tail bearing 13 are limited by the plastic sleeve 11. The plastic sleeve 11 is fitted on the surface of the drive shaft 10 to protect the drive shaft 10. When the drive shaft 10 rotates, it does not come into contact with other external structures, thus preventing abnormal noise from occurring when the drive shaft 10 rotates.

[0033] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0034] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bearing mounting structure, comprising a cylindrical outer shell (1), characterized in that: One end of the cylindrical shell (1) is provided with a mounting back frame (2), and one end of the cylindrical shell (1) is fixedly connected to the mounting back frame (2) through a back arc plate (4). The interior of the mounting back frame (2) is provided with a mounting back plate (8), and a bearing mounting assembly is provided on one side of the mounting back plate (8). The bearing mounting assembly includes a mounting sleeve (9) fixedly mounted on one side of the mounting back plate (8). A drive shaft (10) is rotatably mounted inside the mounting sleeve (9). A plastic sleeve (11) is embedded in the inner wall of the mounting sleeve (9). A front bearing (12) and a tail bearing (13) are embedded inside the mounting sleeve (9). The front bearing (12) and the tail bearing (13) are located at both ends of the plastic sleeve (11). The drive shaft (10) passes through the plastic sleeve (11), the front bearing (12), and the tail bearing (13).

2. The bearing mounting structure according to claim 1, characterized in that: The inner wall of the mounting back frame (2) is fixedly equipped with four mounting rods (6), one end of the mounting rod (6) is fixedly equipped with a mounting ring (7), and the mounting back plate (8) is fixedly installed inside the mounting ring (7).

3. The bearing mounting structure according to claim 2, characterized in that: One end of the drive shaft (10) is fixedly installed with a contact head (101), which contacts one side of the mounting back plate (8). The inner diameter of the plastic sleeve (11) is larger than the inner diameter of the front bearing (12) and the tail bearing (13).

4. The bearing mounting structure according to claim 3, characterized in that: The cylindrical shell (1) is provided with a mounting frame (3) at the end away from the mounting back frame (2), and one end of the cylindrical shell (1) is fixedly connected to the mounting frame (3) through the front arc plate (5).

5. A bearing mounting structure according to claim 4, characterized in that: A rotating sleeve (14) is fixedly installed at the end of the drive shaft (10) away from the contact head (101), and the rotating sleeve (14) and the mounting sleeve (9) are directly provided with a coil mounting cavity (15).

6. A bearing mounting structure according to claim 5, characterized in that: The rotating sleeve (14) is fixedly mounted with fan blades (16), and the four corners of the mounting back frame (2) are provided with back mounting holes (17).

7. A bearing mounting structure according to claim 6, characterized in that: The mounting frame (3) has front mounting holes (18) at all four corners, and a reinforcing side plate (19) is fixedly installed between the mounting back frame (2) and the mounting frame (3).

Images