Axial flow fan bearing assembly device

Abstract

The present invention provides an axial flow fan bearing assembly device, which belongs to the technical field of axial flow fan assembly. It includes a bearing press, an axial flow fan housing and a bearing seat, a protective frame is fixedly installed on the outside of the bearing press, an assembly seat is arranged on the inner side of the protective frame, and a servo motor is fixedly connected to the inner wall of the protective frame, and a groove is opened in the middle of the assembly seat. The present invention provides a first limiting component and a second limiting component, so that when the axial flow fan bearing assembly device performs bearing assembly work on the bearing seat assembled in the axial flow fan housing and the separate bearing seat, the first limiting component and the second limiting component can be used to provide good limiting fixation for the bearing seat assembled in the axial flow fan housing and the separate bearing seat, thereby ensuring the stability of the device during operation, and having a good auxiliary effect on the assembly of the bearing on the bearing mounting seat in different states.

Description

Technical Field

[0001] The invention relates to the technical field of axial flow fan assembly, and in particular to an axial flow fan bearing assembly device. Background Art

[0002] Axial flow fan is a common ventilation equipment. Its working principle is to drive the impeller to rotate through a motor, thereby generating airflow to achieve air inhalation or discharge. The bearing is an important structure in the axial flow fan. Its function is to support the rotating shaft, reduce the friction of the shaft during rotation, ensure the stable operation of the shaft, and bear a certain load. It is generally assembled in the axial flow fan through a bearing mounting seat.

[0003] During the assembly process of the axial flow fan bearings, the operation is usually performed manually with the help of relevant auxiliary equipment. However, the existing assembly still has certain deficiencies during use. First, there are two situations of the bearing seat of the axial flow fan. One is that the bearing seat is compounded on the outer shell of the axial flow fan. When assembling the bearing, the axial flow fan outer shell with the bearing seat needs to be placed on the assembly table for fixation. The other situation is that the bearing seat is separated from the outer shell of the axial flow fan. The bearing seat is directly fixed on the assembly table. After the bearing is assembled, the bearing seat is installed in the axial flow fan together with the bearing. The appearance of the separate bearing seat and the axial flow fan outer shell with the bearing seat is quite different. It is difficult to fix them on the assembly table with the same structure as an auxiliary device. As a result, the stability of the bearing during assembly cannot be maintained, which affects the assembly efficiency and assembly accuracy of the bearing. Therefore, the present application provides an axial flow fan bearing assembly device to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an axial flow fan bearing assembly device to solve the problem that the existing assembly device cannot play a good auxiliary role in bearing assembly of different types of bearing seats.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] An axial flow fan bearing assembly device comprises a bearing press, an axial flow fan housing and a bearing seat, a protective frame is fixedly installed on the outside of the bearing press, an assembly seat is arranged on the inner side of the protective frame, and a servo motor is fixedly connected to the inner side wall of the protective frame, a groove is opened in the middle of the assembly seat, a load-bearing seat is fixedly installed in the groove, a symmetrically distributed threaded rod is fixedly connected to the outside of the driving shaft of the servo motor, and a movable plate is sleeved on the outside of the threaded rod; a first limiting component is used to limit and fix the axial flow fan housing, and the first limiting component is connected to the movable plate; a second limiting component is used to limit and fix the bearing seat, and the second limiting component is connected to the first limiting component.

[0007] Optionally, guide rods symmetrically distributed on the upper and lower sides of the servo motor are fixedly connected to the protection frame, and the ends of the threaded rods are movably connected to the inner side walls of the protection frame via bearings.

[0008] Optionally, a threaded hole matching the shape of the threaded rod is provided on the movable plate, and a guide hole matching the shape of the guide rod is provided on the outside of the movable plate, and the movable plate is connected to the threaded rod and the guide rod respectively through the threaded hole and the guide hole.

[0009] Optionally, the first limiting assembly includes a first clamping seat fixedly connected to the movable plate, arc-shaped clamping edges are fixedly connected to both sides of the first clamping seat, and a first weakening groove is provided at the connection between the first clamping seat and the clamping edge.

[0010] Optionally, a connecting plate is fixedly connected to the bottom end of the movable plate, the position of the connecting plate corresponds to the position of the first clamping seat, the connecting plate is L-shaped, and the end of the connecting plate is fixedly connected to a socket seat, and a second weakening groove is provided at the connection between the connecting plate and the socket seat.

[0011] Optionally, a sliding plate is movable in the socket, one end of the sliding plate located in the socket is fixedly connected to a limiting plate, a movable groove matching the shape of the limiting plate is opened in the socket, and evenly distributed springs are fixedly connected between the socket and the limiting plate.

[0012] Optionally, the second limiting assembly includes a limiting end formed by bending an end of the sliding plate away from the limiting plate, a terminal end of the limiting end is parallel to the sliding plate, and a support plate is fixedly connected between the terminal end of the limiting end and the sliding plate.

[0013] Optionally, a pressing block corresponding to the position of the support plate is fixedly connected to the bottom of the sliding plate, the position of the load-bearing seat corresponds to the position of the pressing block, and first guide surfaces are provided on both sides of the load-bearing seat.

[0014] Optionally, a second clamping seat is fixedly connected to the top of the limiting end, a clamping groove matching the external shape of the bearing seat is provided between the second clamping seat and the limiting end, and a second guide surface is provided on the top of the second clamping seat.

[0015] Optionally, the top of the sleeve seat is flush with the top of the assembly seat, and the depth of the groove is greater than the sum of the heights of the pressing block, the limiting end and the second clamping seat.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, by setting the first limit component and the second limit component, the axial flow fan bearing assembly device can provide good limiting fixation for the bearing seat assembled in the axial flow fan housing and the separate bearing seat through the first limit component and the second limit component respectively when assembling the bearings of the bearing seat assembled in the axial flow fan housing and the separate bearing seat, thereby ensuring the stability of the device during operation and having a good auxiliary effect on the assembly of the bearing on the bearing mounting seat in different states.

[0018] By setting the clamping edge and the first weakened groove in the first limiting component, when clamping and fixing axial fan casings of different sizes, the clamping edge can generate bending deformation at the first weakened groove, and cooperate with the first clamping seat to maintain fit with the outside of the axial fan casing, which has a good limiting and fixing effect on axial fan casings of different sizes, thereby improving the adaptation range of the first limiting component and the spacing to improve the adaptation range of the entire device.

[0019] By setting a socket seat and a sliding plate, the sliding plate can slide in the movable groove inside the socket seat, so as to adjust the relative position between the socket seat and the sliding plate. While the clamping edge and the first clamping seat form a limit fixation on the outside of the axial flow fan housing, the second limit assembly on the sliding plate is synchronously clamped on the outside of the bearing seat in the axial flow fan housing, thereby further improving the auxiliary fixing effect of the axial flow fan housing and the bearing seat, and under the sliding adjustment action of the socket seat and the sliding plate, different sizes of bearing seats in the axial flow fan housing can be adapted, thereby further improving the adaptation range of the first limit assembly and the second limit assembly.

[0020] By setting the support plate and the pressure block in the second limit assembly, after the limit end drives the second clamping seat to clamp and fix the bearing seat, the bottom of the pressure block is located on the load-bearing seat, and the load-bearing seat cooperates with the pressure block and the support plate to form support for the limit end. When the bearing press is working and generates pressure on the assembled bearing, sufficient support is provided for the bearing seat, avoiding that the bearing seat in the axial flow fan housing only relies on the structural support in the bearing seat, which causes the structure in the axial flow fan housing to be damaged under the pressure of the bearing press, thereby ensuring the assembly quality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of an axial flow fan bearing assembly device;

[0023] Figure 2 It is a schematic diagram of a partially cutaway three-dimensional structure of an assembly seat;

[0024] Figure 3 It is a schematic diagram of the structure of the movable plate, the guide rod and the threaded rod;

[0025] Figure 4 It is a schematic diagram of the structure of the movable plate and the axial flow fan housing;

[0026] Figure 5 for Figure 4 The enlarged structural diagram at A in the middle;

[0027] Figure 6 It is a schematic diagram of the matching structure of the movable plate and the bearing seat;

[0028] Figure 7 It is a schematic diagram of the coordination structure between the movable plate and the load-bearing seat;

[0029] Figure 8 It is a schematic diagram of a partial cross-sectional structure of a socket;

[0030] Fig. 9 for Figure 8 The enlarged structural diagram at B in the middle;

[0031] Fig.10 for Figure 8 Enlarged structural diagram at point C in the middle.

[0032] Reference numerals:

[0033] 1. Bearing press; 2. Protection frame; 3. Assembly seat; 4. Movable plate; 5. Axial fan housing; 6. Servo motor; 7. Guide rod; 8. Groove; 9. Load-bearing seat; 10. Threaded rod; 11. Connecting plate; 12. Socket seat; 13. Sliding plate; 14. Pressing block; 15. Bearing seat; 16. Clamping edge; 17. First weakened groove; 18. First clamping seat; 19. Threaded hole; 20. Limiting end; 21. Support plate; 22. Second clamping seat; 23. Limiting plate; 24. First guide surface; 25. Second weakened groove; 26. Movable groove; 27. Spring; 28. Clamping groove; 29. ​​Second guide surface; 30. Guide hole.

[0034] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0035] The following is a detailed description of an axial flow fan bearing assembly device provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0036] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0037] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0038] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0039] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0040] like Figures 1 to 10As shown, an embodiment of the present invention provides an axial flow fan bearing assembly device, including a bearing press 1, an axial flow fan housing 5 and a bearing seat 15. A protective frame 2 is fixedly installed on the outside of the bearing press 1, an assembly seat 3 is arranged on the inner side of the protective frame 2, and a servo motor 6 is fixedly connected to the inner wall of the protective frame 2. When the bearing press 1 is working, it can apply pressure to the bearing placed on the assembly seat 3 for assembly, so that the bearing can complete the assembly and fixation between the axial flow fan housing 5 and the bearing seat 15 under the action of pressure. The principle and use method of the bearing press 1 are the same as those of the prior art, and will not be described in detail here. The bearing seat 15 is a separate structure for assembling bearings, and a fixing hole is opened on the outside. After the bearing is assembled, it can be assembled in the axial flow fan through other connecting parts. The axial flow fan housing 5 is one of the main components of the axial flow fan, but the axial flow fan housing 5 is directly provided with a bearing seat 15 when it is produced, and is formed together with the bearing seat 15. Therefore, when assembling the bearing, the axial flow fan housing 5 needs to be placed on the assembly seat 3 together with the bearing seat 15.

[0041] A groove 8 is opened in the middle of the assembly seat 3, and a load-bearing seat 9 is fixedly installed in the groove 8. The outside of the driving shaft of the servo motor 6 is fixedly connected with symmetrically distributed threaded rods 10, and the outside of the threaded rods 10 is sleeved with a movable plate 4; a first limiting component is used to limit and fix the axial flow fan housing 5, and the first limiting component is connected to the movable plate 4; a second limiting component is used to limit and fix the bearing seat 15, and the second limiting component is connected to the first limiting component. Driving shafts are arranged on both sides of the servo motor 6, and the threads on the threaded rods 10 connected to the two driving shafts are in opposite directions. When the servo motor 6 is working, the threaded rod 10 can be driven to rotate by its driving shaft, and then the movable plate 4 is pushed to move by the threads on the outside of the threaded rod 10, driving the first limiting component and the second limiting component to produce corresponding displacements.

[0042] The first limiting component is used to clamp and fix the outside of the axial flow fan housing 5 to ensure that when the axial flow fan housing 5 is placed on the assembly seat 3 for the bearing assembly, the bearing seat 15 in the axial flow fan housing 5 can correspond to the position of the pressure applying structure in the bearing press 1, which not only realizes the positioning of the axial flow fan housing 5, but also forms a clamping state on the outside of the axial flow fan housing 5 to ensure the stability of the axial flow fan housing 5 during the bearing assembly process. The second limiting component is used for auxiliary limiting of the bearing seat 15. When there is no axial flow fan housing 5, the second limiting component The parts can independently form a clamping and fixing of the bearing seat 15, form a positioning and auxiliary fixation of the bearing seat 15, and ensure that the position of the bearing seat 15 corresponds to the position of the pressure applying structure of the bearing press 1. When there is an axial flow fan housing 5, the second limiting component is used to assist the clamping and fixing work of the first limiting component. While the first limiting component fixes the axial flow fan housing 5, the second limiting component also clamps the outer side of the bearing seat 15 in the axial flow fan housing 5, further improving the stability of the axial flow fan housing 5 and the bearing seat 15 during the assembly process of the bearing.

[0043] In this embodiment, if Figures 1 to 3 As shown, the protection frame 2 is fixedly connected with guide rods 7 symmetrically distributed on the upper and lower sides of the servo motor 6, the end of the threaded rod 10 is movably connected to the inner wall of the protection frame 2 through a bearing, the movable plate 4 is provided with a threaded hole 19 adapted to the shape of the threaded rod 10, and the outer side of the movable plate 4 is provided with a guide hole 30 adapted to the shape of the guide rod 7, the movable plate 4 is connected to the threaded rod 10 and the guide rod 7 through the threaded hole 19 and the guide hole 30 respectively, the guide rod 7 is cylindrical, and is sleeved with the movable plate 4 through the guide hole 30 The guide rod 7 is connected with the threaded rod 10 to form multiple connection points between the protective frame 2 and the movable plate 4, so that the movable plate 4 is more stable during the movement in the protective frame 2, and can also play a guiding role in the sliding of the movable plate 4. When the servo motor 6 works and drives the threaded rod 10 to push the movable plate 4 to produce displacement, the guide rod 7 limits the movable plate 4 through the sleeve relationship between the guide hole 30, so as to prevent the movable plate 4 from rotating with the rotation of the threaded rod 10, thereby ensuring the stability of the movable plate 4 during the movement.

[0044] In this embodiment, if Figures 4 to 8As shown, the first limiting assembly includes a first clamping seat 18 fixedly connected to the movable plate 4, and arc-shaped clamping edges 16 are fixedly connected to both sides of the first clamping seat 18, and a first weakening groove 17 is provided at the connection between the first clamping seat 18 and the clamping edge 16. The first clamping seat 18 is located on the side of the movable plate 4 close to the servo motor 6. The outer portion of the first clamping seat 18 is arc-shaped, which is adapted to the outer shape of the axial flow fan housing 5. The arc-shaped structure enables the movable plate 4 to drive the first clamping seat 18 to clamp and limit the outer side of the axial flow fan housing 5, and the groove 8 can generate a larger contact area with the outer side of the axial flow fan housing 5, thereby ensuring the axial flow fan The stability of the fixation of the shell 5, the setting of the first weakened groove 17 makes the thickness and width values ​​of the clamping edge 16 at the first weakened groove 17 smaller, thereby making the strength of the clamping edge 16 at the first weakened groove 17 weaker, and can undergo corresponding deformation after being acted upon by external force, so that when the first clamping seat 18 is used to limit and fix the axial flow fan shells 5 of different sizes, the clamping edge 16 can produce corresponding deformation at the first weakened groove 17, and rely on the clamping edge 16 to further increase the contact area with the outside of the axial flow fan shell 5, thereby ensuring the stability of the fixation of the axial flow fan shell 5, and at the same time improving the adaptation range of the first clamping seat 18 and the clamping edge 16 to the axial flow fan shell 5.

[0045] The bottom end of the movable plate 4 is fixedly connected to a connecting plate 11, and the position of the connecting plate 11 corresponds to the position of the first clamping seat 18. The connecting plate 11 is L-shaped, and the end of the connecting plate 11 is fixedly connected to a sleeve seat 12. A second weakening groove 25 is provided at the connection between the connecting plate 11 and the sleeve seat 12. The L-shaped structure of the connecting plate 11 makes the sleeve seat 12 together with the entire limiting assembly located below the bottom of the movable plate 4. While the movable plate 4 drives the first clamping seat 18 and the clamping edge 16 to clamp and fix the outside of the axial flow fan housing 5, the connecting plate 11, the sleeve seat 12 and the sliding plate 13 also synchronously drive the second limiting assembly to limit and fix the bearing seat 15 on the inner side of the axial flow fan housing 5, thereby further enhancing the stability of the device to the axial flow fan housing 5 and the bearing seat 15 during the bearing assembly process. A sliding plate 13 is movably sleeved in the sleeve seat 12, and one end of the sliding plate 13 located in the sleeve seat 12 is fixedly connected to the limiting plate 23. A movable groove 26 adapted to the shape of the limiting plate 23 is opened in the sleeve seat 12, and a uniformly distributed spring 27 is fixedly connected between the sleeve seat 12 and the limiting plate 23. In addition to the differences in specifications of the axial flow fan housing 5 itself, the bearing seat 15 in the axial flow fan housing 5 also has differences in specifications. Therefore, the sleeve seat 12 and the sliding plate 13 are provided, so that the sliding plate 13 can slide in the movable groove 26 of the sleeve seat 12, and the sum of the length values ​​of the sleeve seat 12 and the sliding plate 13 is adjusted to indirectly adjust the second limiting The distance value between the positioning assembly and the movable plate 4 allows the second limiting assembly to clamp and fix the bearing seat 15 in the axial flow fan housing 5, and allows the first limiting assembly and the second limiting assembly to cooperate with each other to fix and stabilize the axial flow fan housing 5 and the bearing seat 15 in the bearing assembly. During the relative sliding process between the sliding plate 13 and the socket seat 12, the limiting plate 23 on the sliding plate 13 slides synchronously in the movable groove 26 and compresses the spring 27. The spring 27 generates pressure on the limiting plate 23 and the sliding plate 13 under the action of its own elastic force, thereby maintaining the clamping and limiting state of the second limiting assembly on the sliding plate 13 on the bearing seat 15.

[0046] In this embodiment, if Figures 6 to 10As shown, the second limiting assembly includes a limiting end 20 formed by bending at one end of the sliding plate 13 away from the limiting plate 23 , the end of the limiting end 20 is parallel to the sliding plate 13 , and a support plate 21 is fixedly connected between the end of the limiting end 20 and the sliding plate 13 . The bottom of the sliding plate 13 is fixedly connected with a pressure block 14 corresponding to the position of the support plate 21, the position of the load-bearing seat 9 corresponds to the position of the pressure block 14, and first guide surfaces 24 are provided on both sides of the load-bearing seat 9. The second limiting component can firstly form a clamping and fixing of a separate bearing seat 15, and assist the separate bearing seat 15 in assembling the bearing. Secondly, when the first limiting component clamps and fixes the axial flow fan housing 5, it can assist the first limiting component in fixing work, thereby enhancing the clamping and fixing effect of the axial flow fan housing 5 and the bearing seat 15. Finally, when the second limiting component clamps and fixes the bearing seat 15, the limiting end 20, the support plate 21 and the pressure block 14 in the second limiting component can also cooperate with the load-bearing seat 9 to form a support for the bearing seat 15, so as to ensure the supporting force of the bearing seat 15 when the bearing press 1 applies pressure to the bearing seat 15 and the bearing, and avoid the structure in the axial flow fan housing 5 from being damaged due to the pressure on the bearing seat 15, thereby further improving the function of the second limiting component.

[0047] In this embodiment, if Figure 2 and Figure 7 as well as Fig.10As shown, the top of the limit end 20 is fixedly connected with a second clamping seat 22, and a clamping groove 28 adapted to the external shape of the bearing seat 15 is arranged between the second clamping seat 22 and the limit end 20, and a second guide surface 29 is opened on the top of the second clamping seat 22. The second clamping seat 22 is used to clamp and fix the outer edge of the bearing seat 15. The setting of the clamping groove 28 enables the second clamping seat 22 to have a larger contact area with the side edge of the bearing seat 15 when clamping the side edge of the bearing seat 15, and the stability after clamping is also stronger. The top of the sleeve seat 12 is flush with the top of the assembly seat 3, and the depth of the groove 8 is greater than the sum of the height values ​​of the pressure block 14, the limit end 20 and the second clamping seat 22. When the entire second limit assembly follows the first limit assembly to move, if only a single bearing seat 15 needs to be fixed and supported, the second limit assembly will not be hindered by the axial flow fan housing 5, and can be directly clamped on the outside of the bearing seat 15 under the drive of the movable plate 4. If the axial flow fan housing 5 is to be assembled with a bearing, the movable plate 4 will drive the first limit assembly and the second limit assembly to clamp and fix the axial flow fan housing 5 and the bearing seat 15, and the second limit assembly will come into contact with the outside of the axial flow fan housing 5. At this time, the curved arc surface on the outside of the limit end 20 and the second guide surface 29 on the second clamping seat 22 can separate the resistance exerted on the second limit assembly, thereby forming a downward pressure on the second limit assembly, so that The second limiting component together with the entire sleeve seat 12 and the sliding plate 13 can be bent at the second weakened groove 25 on the connecting plate 11, so that the second limiting component can avoid the outside of the axial flow fan housing 5, and the depth value of the groove 8 can provide sufficient space for the avoidance activity of the second limiting component. After the second limiting component enters the inner side of the axial flow fan housing 5, the connecting plate 11 drives the second limiting component to reset under the action of its own elastic force. At the same time, the pressing block 14 at the bottom of the sliding plate 13 will also come into contact with the first guide surfaces 24 on both sides of the load-bearing seat 9, and slide along the guidance of the first guide surfaces 24 to the top of the load-bearing seat 9, ensuring that the sliding plate 13 after entering the inner side of the axial flow fan housing 5 can maintain a parallel state with the top of the load-bearing seat 9, ensuring that the position of the second limiting component can correspond to the position of the bearing seat 15, and ensuring the limiting and fixing effect of the second limiting component on the bearing seat 15 in the axial flow fan housing 5.

[0048] The working principle of the technical solution provided by the present invention is as follows:

[0049] When in use, take out the axial flow fan housing 5 or the bearing seat 15 to be assembled with the bearing. If the axial flow fan housing 5 with the bearing seat 15 installed therein is to be assembled with the bearing, place the axial flow fan housing 5 directly on the assembly seat 3, start the servo motor 6, the servo motor 6 works and drives the threaded rod 10 to rotate through its drive shaft, the threaded rod 10 pushes the movable plate 4 to slide along the guide of the guide rod 7, and drives the first clamping seat 18 to approach the outside of the axial flow fan housing 5 until the clamping edge 16 is deformed at the first weakened groove 17, and the first clamping seat 18 and the clamping edge 16 fit with the outside of the axial flow fan housing 5 to form a clamping limit for the axial flow fan housing 5.

[0050] When the movable plate 4 drives the first clamping seat 18 to move, the connecting plate 11, the socket seat 12 and the sliding plate 13 also move with the movable plate 4, and the limit end 20 and the second clamping seat 22 are in contact with the outside of the axial flow fan housing 5. Under the action of the external squeezing force of the axial flow fan housing 5, the sliding plate 13 slides in the socket seat 12 and compresses the spring 27. The connecting plate 11 bends at the second weakened groove 25 and drives the socket seat 12, the sliding plate 13 and the limit end 20 to avoid until the limit end 20 and the second clamping seat 22 all enter the inner side of the axial flow fan housing 5. After entering the inner side of the axial flow fan housing 5, the connecting plate 11 recovers under its own elastic force, and the spring 27 squeezes the limit plate 23 and the sliding plate 13 under the action of its own elastic force, so that the second clamping seat 22 is clamped on the outside of the bearing seat 15 in the axial flow fan housing 5.

[0051] When the second clamping seat 22 clamps and approaches the outside of the bearing seat 15 in the axial flow fan housing 5, the pressure block 14 at the bottom of the sliding plate 13 contacts the first guide surfaces 24 on both sides of the load-bearing seat 9, and slides to the top of the load-bearing seat 9 along the guidance of the first guide surfaces 24, so that the sliding plate 13 and the load-bearing seat 9 are in a parallel state. The limit end 20, the support plate 21, the pressure block 14 and the load-bearing seat 9 jointly provide support for the bearing seat 15, and the bearing to be assembled is placed on the bearing seat 15 in the axial flow fan housing 5, and the bearing press 1 is started. The pressure-applying structure in the bearing press 1 works to apply pressure to the bearing, so that the bearing sleeve is assembled on the bearing seat 15 in the axial flow fan housing 5.

[0052] If the bearing that needs to be assembled is a separate bearing seat 15, start the servo motor 6, push the movable plate 4 to drive the connecting plate 11, the sleeve seat 12 and the sliding plate 13 to produce displacement, so that the two limit ends 20 are close to each other, so that the distance between the two second clamping seats 22 is larger than the size of the bearing seat 15, and the bearing seat 15 is placed on the limit end 20, and the servo motor 6 is started again to drive the two limit ends 20 to approach each other until the second clamping seat 22 clamps the bearing seat 15 and fixes it, and the sliding plate 13 and the load-bearing seat 9 are in a parallel state. The limit end 20, the support plate 21, the pressure block 14 and the load-bearing seat 9 jointly provide support for the bearing seat 15, and the bearing to be assembled is placed on the bearing seat 15 in the axial flow fan housing 5, and the bearing press 1 is started. The structure that applies pressure in the bearing press 1 works to apply pressure to the bearing, so that the bearing sleeve is assembled on the bearing seat 15 in the axial flow fan housing 5, completing the use process of the entire axial flow fan bearing assembly device.

[0053] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An axial flow fan bearing assembly device, characterized in that: It includes a bearing press, an axial flow fan housing and a bearing seat, a protective frame is fixedly installed on the outside of the bearing press, an assembly seat is arranged on the inner side of the protective frame, and a servo motor is fixedly connected to the inner side wall of the protective frame, a groove is opened in the middle of the assembly seat, a load-bearing seat is fixedly installed in the groove, and a symmetrically distributed threaded rod is fixedly connected to the outside of the driving shaft of the servo motor, and a movable plate is sleeved on the outside of the threaded rod; A first limiting component, used for limiting and fixing the housing of the axial flow fan, wherein the first limiting component is connected to the movable plate; A second limiting assembly, used for limiting and fixing the bearing seat, the second limiting assembly is connected to the first limiting assembly; The first limiting assembly comprises a first clamping seat fixedly connected to the movable plate, arc-shaped clamping edges are fixedly connected to both sides of the first clamping seat, and a first weakening groove is provided at the connection between the first clamping seat and the clamping edge; The bottom end of the movable plate is fixedly connected with a connecting plate, the position of the connecting plate corresponds to the position of the first clamping seat, the connecting plate is L-shaped, and the end of the connecting plate is fixedly connected with a sleeve seat, and a second weakening groove is provided at the connection between the connecting plate and the sleeve seat; A sliding plate is movably sleeved in the sleeve seat, one end of the sliding plate located in the sleeve seat is fixedly connected to a limit plate, a movable groove matching the shape of the limit plate is opened in the sleeve seat, and uniformly distributed springs are fixedly connected between the sleeve seat and the limit plate; The second limiting assembly comprises a limiting end formed by bending at one end of the sliding plate away from the limiting plate, the end of the limiting end and the sliding plate are parallel to each other, and a support plate is fixedly connected between the end of the limiting end and the sliding plate; The bottom of the sliding plate is fixedly connected with a pressing block corresponding to the position of the supporting plate, the position of the load-bearing seat corresponds to the position of the pressing block, and first guide surfaces are provided on both sides of the load-bearing seat; A second clamping seat is fixedly connected to the top of the limiting end, a clamping groove matching the outer shape of the bearing seat is arranged between the second clamping seat and the limiting end, and a second guide surface is opened on the top of the second clamping seat; The top of the sleeve seat is flush with the top of the assembly seat, and the depth of the groove is greater than the sum of the heights of the pressing block, the limiting end and the second clamping seat.

2. The axial flow fan bearing assembly device according to claim 1, characterized in that: The protection frame is fixedly connected with guide rods symmetrically distributed on the upper and lower sides of the servo motor, and the ends of the threaded rods are movably connected to the inner side walls of the protection frame through bearings.

3. The axial flow fan bearing assembly device according to claim 2, characterized in that: The movable plate is provided with a threaded hole matching the shape of the threaded rod, and the outside of the movable plate is provided with a guide hole matching the shape of the guide rod. The movable plate is connected to the threaded rod and the guide rod respectively through the threaded hole and the guide hole.

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