An industrial ceiling fan blade assembly and connection structure

Abstract

This application relates to the field of industrial ventilation equipment, specifically disclosing an industrial ceiling fan blade assembly and connection structure, including a blade mounting hub and multiple blade bodies mounted on the outer surface of the blade mounting hub. Multiple blade connecting seats are fixedly connected to the upper surface of the blade mounting hub, and a reinforcing connection component is fixedly connected to the upper surface of each blade connecting seat. A connector is fixedly connected to one end of each blade body. This industrial ceiling fan blade assembly and connection structure significantly improves connection strength through a triple connection of mechanical insertion, bolt fastening, and reinforcing components. Mechanical locking is achieved by inserting a long rod with an opening into a positioning groove. The bolt connecting lug is fastened to the side sliding frame with bolts. The reinforcing bolts of the reinforcing connection component further enhance the integrity of the blade body and the blade connecting seat. Compared to traditional single bolt connections, this structure increases tensile strength and shear strength, enabling it to withstand the centrifugal force of high-speed rotation of the industrial ceiling fan and preventing loosening or breakage.

Description

Technical Field

[0001] This application relates to the field of industrial ventilation equipment, and more particularly to an assembly and connection structure for industrial ceiling fan blades. Background Technology

[0002] Industrial ceiling fans are widely used in large spaces such as industrial plants, logistics warehouses, waiting rooms, exhibition halls, stadiums, and shopping malls. As a common industrial machine for space ventilation and personnel cooling, it can push a large amount of airflow to the ground, forming a horizontal airflow layer at a certain height on the ground, thereby promoting overall air circulation, and is very popular in the market.

[0003] As a core piece of equipment for ventilation and cooling in high spaces, industrial ceiling fans rely heavily on their blades as a core component. The reliability of the connection structure is crucial. The blades must withstand the centrifugal force generated by high-speed rotation, the reaction force of airflow, and long-term vibration loads. Traditional industrial ceiling fan blade connections often use a single bolt or a simple plug-in structure, which has several shortcomings. First, the connection strength is insufficient, and a single bolt is prone to breakage due to stress concentration. Second, the positioning is inaccurate, and the blades are misaligned with the hub during assembly, resulting in poor dynamic balance during operation, which exacerbates vibration and loosening of the connection. With long-term use, this can easily lead to blade wobbling, wear of connecting parts, and even blade detachment, posing serious safety hazards. Therefore, we propose an industrial ceiling fan blade assembly and connection structure to solve the above problems. Utility Model Content

[0004] This application provides an industrial ceiling fan blade assembly and connection structure that solves the problems of insufficient connection strength, inaccurate positioning, and difficult assembly in traditional methods. It ensures that the industrial ceiling fan is firmly connected and balanced and stable during long-term high-speed operation, providing a safe and reliable equipment guarantee for ventilation in high spaces.

[0005] This application provides an industrial ceiling fan blade assembly and connection structure, including a fan blade mounting hub and multiple fan blade bodies mounted on the outer surface of the fan blade mounting hub. Multiple fan blade connecting seats are fixedly connected to the upper surface of the fan blade mounting hub. A reinforcing connecting component is fixedly connected to the upper surface of each fan blade connecting seat. A connector is fixedly connected to one end of each fan blade body. Two bolt connecting ears and two long rods with openings are fixedly connected to the outer surface of each connector. A partition plate is fixedly connected to the inner wall of each fan blade connecting seat. A positioning groove adapted to the long rods with openings is formed on the outer surface of each partition plate. A seat with holes is fixedly connected to the inner bottom wall of each fan blade connecting seat. Two side sliding frames are fixedly connected to the inner wall of each fan blade connecting seat. Bolt mounting holes are formed on the outer surface of each side sliding frame, the inner wall of the fan blade connecting seat, and the outer surface of the bolt connecting ears. Multiple main fastening screws and multiple auxiliary fastening screws are provided above the fan blade mounting hub.

[0006] Furthermore, a connecting post is fixedly connected to the upper surface of the fan blade mounting hub, and a pre-drilled hole is provided at the top of the connecting post.

[0007] Furthermore, each of the fan blade connectors has an installation port on its outer surface.

[0008] Furthermore, a plurality of arc-shaped support blocks are fixedly connected to the outer surface of the fan blade mounting hub, and each arc-shaped support block is located below the mounting opening.

[0009] Furthermore, each of the partition plates is fixedly connected to a positioning pin on its outer surface, and each of the connectors is fixedly connected to a positioning cylinder that matches the positioning pin on its outer surface.

[0010] Furthermore, the reinforcing connection assembly includes a connecting seat reinforcing ear that is fixedly connected to the fan blade connecting seat, and a plurality of reinforcing bolts are provided above the connecting seat reinforcing ear.

[0011] Furthermore, the reinforcing connection assembly includes a fan blade reinforcing ear that is fixedly connected to the fan blade body. Both the outer surface of the fan blade reinforcing ear and the outer surface of the connecting seat reinforcing ear are provided with bolt holes that are compatible with the reinforcing bolts.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The technical solution provided in this application has at least the following technical effects or advantages: 1. By adopting a triple connection of mechanical plug-in, bolt fastening and reinforcement components, the connection strength is significantly improved. The mechanical locking is formed by inserting a long rod with an opening into the positioning groove. The bolt connection lug is fastened to the side sliding frame with bolts. The reinforcement bolts of the reinforcement connection component further enhance the integrity of the fan blade body and the fan blade connection seat. Compared with the traditional single bolt connection, the tensile strength is improved and the shear strength is enhanced. It can withstand the centrifugal force of the high-speed rotation of the industrial ceiling fan and prevent loosening or breakage.

[0013] 2. By using the positioning pin and positioning cylinder to cooperate, the long rod with the opening to cooperate with the positioning groove, and the main fastening screw to connect and fasten with the seat with the hole, a double positioning reference is formed to ensure that the fan blade is concentric with the hub and fits flatly during assembly. The partition plate separates the fan blade connection area to avoid mutual interference between adjacent fan blades during assembly, ensuring overall dynamic balance, reducing operating vibration amplitude, and reducing energy consumption and component wear. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall front view of this application; Figure 2 This is a top view of one of the fan blade bodies in this application; Figure 3 This is a top sectional view of the fan blade connector of this application; Figure 4This is a front sectional view of the fan blade connector of this application; In the diagram: 1. Fan blade mounting hub; 2. Fan blade connecting seat; 3. Connecting column; 4. Reserved hole; 5. Fan blade body; 6. Reinforcing connection assembly; 61. Connecting seat reinforcing ear; 62. Reinforcing bolt; 63. Fan blade reinforcing ear; 64. Bolt hole; 7. Connector; 8. Arc-shaped support block; 9. Partition plate; 10. Positioning groove; 11. Seat with hole; 12. Side sliding frame; 13. Bolt mounting hole; 14. Bolt connecting ear; 15. Positioning cylinder; 16. Positioning pin; 17. Long rod with opening; 18. Installation port; 19. Main fastening screw; 20. Secondary fastening screw. Detailed Implementation

[0015] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0016] Example 1: Please see Figure 1-4 In this utility model, an industrial ceiling fan blade assembly and connection structure includes a blade mounting hub 1 and multiple blade bodies 5 mounted on the outer surface of the blade mounting hub 1. Multiple blade connecting seats 2 are fixedly connected to the upper surface of the blade mounting hub 1. A reinforcing connecting component 6 is fixedly connected to the upper surface of each blade connecting seat 2. A connector 7 is fixedly connected to one end of each blade body 5. Two bolt connecting ears 14 and two long rods with openings 17 are fixedly connected to the outer surface of each connector 7. A partition plate 9 is fixedly connected to the inner wall of each blade connecting seat 2. A positioning groove 10 adapted to the long rods with openings 17 is provided on the outer surface of each partition plate 9. The inner bottom of each blade connecting seat 2... Each fan blade connecting seat 2 is fixedly connected to a seat with holes 11. Each fan blade connecting seat 2 has two side sliding frames 12 fixedly connected to its inner wall. Each side sliding frame 12, the inner wall of the fan blade connecting seat 2, and the outer surface of the bolt connecting ear 14 are provided with bolt mounting holes 13. Multiple main fastening screws 19 and multiple auxiliary fastening screws 20 are provided above the fan blade mounting hub 1. During assembly, the long rod 17 with an opening of the fan blade body 5 is inserted into the positioning groove 10 of the fan blade connecting seat 2. The bolt passes through the side sliding frame 12 and is fastened to the bolt mounting hole 13 of the bolt connecting ear 14. The main fastening screws 19 reinforce the fan blade connecting seat and the hub, and the auxiliary fastening screws 20 enhance the stability of the side sliding frame 12. The fan blade does not shake when the ceiling fan is running at high speed.

[0017] Example 2: A connecting post 3 is fixedly connected to the upper surface of the fan blade mounting hub 1. A pre-drilled hole 4 is provided on the top of the connecting post 3 to facilitate the installation of the device to the usage position. An installation port 18 is provided on the outer surface of each fan blade connecting seat 2. Multiple arc-shaped support blocks 8 are fixedly connected to the outer surface of the fan blade mounting hub 1. Each arc-shaped support block 8 is located below the installation port 18. The installation port 18 provides a channel for the connector 7 to be inserted into the fan blade connecting seat 2. The arc-shaped support block 8 fits against the lower surface of the fan blade body 5 and can temporarily support the fan blade during assembly, improving the convenience of operation during installation.

[0018] Each partition plate 9 has a positioning pin 16 fixedly connected to its outer surface, and each connector 7 has a positioning cylinder 15 fixedly connected to its outer surface, which is compatible with the positioning pin 16. The positioning pin 16 and the positioning cylinder 15 form an axial positioning reference to ensure that there is no offset along the rotation axis during fan blade assembly. The reinforcing connection assembly 6 includes a connecting seat reinforcing ear 61 fixedly connected to the fan blade connecting seat 2. Multiple reinforcing bolts 62 are provided above the connecting seat reinforcing ear 61. The reinforcing connection assembly 6 also includes a fan blade reinforcing ear 63 fixedly connected to the fan blade body 5. The outer surface of the fan blade reinforcing ear 63... Both the outer surface of the surface and the outer surface of the connecting seat reinforcement ear 61 are provided with bolt holes 64 that are compatible with the reinforcement bolts 62. The connecting seat reinforcement ear 61 and the reinforcement bolts 62 extend the connection point between the fan blade connecting seat 2 and the hub from the edge to the middle, dispersing the torque transmitted by the fan blade and preventing the edge of the connecting seat 2 from cracking due to stress concentration. The fan blade reinforcement ear 63 and the connecting seat reinforcement ear 61 are directly connected by the reinforcement bolts 62, forming a rigid bridge between the fan blade body 5 and the fan blade connecting seat 2, dispersing the force at the root of the fan blade to the fan blade connecting seat 2, and preventing the root of the fan blade from breaking due to excessive local stress.

[0019] The working principle of this application is: Before installation, check that the fan blade mounting hub 1's fan blade connector 2 is intact, and that the side sliding frame 12 slides smoothly. Confirm that the fan blade body 5's connector 7, the long rod with opening 17, and the positioning cylinder 15 are not deformed. Verify that the bolts and screws, such as the main fastening screw 19 and the reinforcing bolt 62, are compatible. Prepare a torque wrench, a level, and a cleaning cloth. Then, align the fan blade body 5's connector 7 with the mounting opening 18 of the fan blade connector 2 and slowly insert it, ensuring that the lower surface of the fan blade fits against the arc-shaped support block 8. The long rod 17 with the opening is fully inserted into the positioning groove 10 that passes through the partition plate 9. The main fastening screw 19 is passed through the long rod 17 with the opening and the seat with the hole 11. The bolt connecting lug 14 can slide in along the side slide frame 12. At the same time, it is confirmed that the positioning pin 16 is inserted into the positioning cylinder 15 to ensure that the fan blade has no radial or axial displacement. Then, the auxiliary fastening screw 20 is screwed in by hand so that it passes through the bolt mounting hole 13 of the side slide frame 12 and the bolt connecting lug 14, so that the connector 7 and the fan blade connecting seat 2 are initially attached. Next, use a torque wrench to tighten the main fastening screw 19 in sequence, while the auxiliary fastening screw 20 can reinforce the side slide frame 12 and the fan blade connecting seat 2 to ensure uniform preload. Then align the fan blade reinforcing lug 63 with the connecting seat reinforcing lug 61, insert the reinforcing bolts 62 in sequence, and tighten them with a torque wrench to form a rigid connection between the fan blade and the fan blade connecting seat 2. Then check whether the fan blade is level to ensure that all fan blades are at the same height to avoid the center of gravity shifting during operation. Finally, repeat the above steps to complete the assembly of all fan blades and ensure that the connection strength of each fan blade is consistent.

[0020] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. An industrial ceiling fan blade assembly and connection structure, comprising a blade mounting hub (1) and a plurality of blade bodies (5) mounted on the outer surface of the blade mounting hub (1), characterized in that: The upper surface of the fan blade mounting hub (1) is fixedly connected to multiple fan blade connecting seats (2), and the upper surface of the fan blade connecting seats (2) is fixedly connected to a reinforcing connecting assembly (6). One end of each fan blade body (5) is fixedly connected to a connector (7). The outer surface of each connector (7) is fixedly connected to two bolt connecting ears (14) and two long rods (17) with openings. The inner wall of each fan blade connecting seat (2) is fixedly connected to a partition plate (9), and the outer surface of each partition plate (9) is provided with a... The positioning groove (10) is adapted to the long rod (17) with opening. The inner bottom wall of each fan blade connecting seat (2) is fixedly connected with a seat with a hole (11). The inner wall of each fan blade connecting seat (2) is fixedly connected with two side sliding frames (12). The outer surface of each side sliding frame (12), the inner wall of the fan blade connecting seat (2), and the outer surface of the bolt connecting ear (14) are provided with bolt mounting holes (13). Multiple main fastening screws (19) and multiple auxiliary fastening screws (20) are provided above the fan blade mounting hub (1).

2. The industrial ceiling fan blade assembly and connection structure according to claim 1, characterized in that: A connecting column (3) is fixedly connected to the upper surface of the fan blade mounting hub (1), and a pre-drilled hole (4) is provided at the top of the connecting column (3).

3. The industrial ceiling fan blade assembly and connection structure according to claim 1, characterized in that: Each of the fan blade connectors (2) has an installation port (18) on its outer surface.

4. The industrial ceiling fan blade assembly and connection structure according to claim 3, characterized in that: Multiple arc-shaped support blocks (8) are fixedly connected to the outer surface of the fan blade mounting hub (1), and each arc-shaped support block (8) is located below the mounting opening (18).

5. The industrial ceiling fan blade assembly and connection structure according to claim 1, characterized in that: Each of the partition plates (9) has a positioning pin (16) fixedly connected to its outer surface, and each of the connectors (7) has a positioning cylinder (15) that is compatible with the positioning pin (16) fixedly connected to its outer surface.

6. The industrial ceiling fan blade assembly and connection structure according to claim 1, characterized in that: The reinforcing connection assembly (6) includes a connecting seat reinforcing ear (61) fixedly connected to the fan blade connecting seat (2), and a plurality of reinforcing bolts (62) are provided above the connecting seat reinforcing ear (61).

7. The industrial ceiling fan blade assembly and connection structure according to claim 6, characterized in that: The reinforcing connection assembly (6) includes a fan blade reinforcing ear (63) fixedly connected to the fan blade body (5). The outer surface of the fan blade reinforcing ear (63) and the outer surface of the connecting seat reinforcing ear (61) are provided with bolt holes (64) that are compatible with the reinforcing bolts (62).

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