Novel fan impeller connecting mechanism

By combining the outer shell and blade base block with a fastening structure, the problems of complex assembly and insufficient stability of traditional wind turbine impeller connection mechanisms are solved, achieving efficient and stable wind energy conversion and rapid installation and disassembly of blades, thus improving the overall performance and safety of the wind turbine.

CN224093581UActive Publication Date: 2026-04-07PANZHIHUA CHUANTE FAN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Traditional wind turbine impeller connection mechanisms are complex in design, difficult to assemble, and lack stability. They are prone to loosening or failure due to vibration and wear, which affects the stability and lifespan of the wind turbine.

Method used

The impeller employs a combination design of a spliced ​​outer shell and multiple blade base blocks, along with a fastening structure consisting of fixed extension blocks, bolts, and nuts, dynamic support from annular columns, annular clamps, and pressure springs, and a movable connection between the fixed shaft sleeve and the blade base blocks, enhancing the modularity and stability of the impeller.

Benefits of technology

It improves the assembly efficiency and stability of the wind turbine impeller, reduces maintenance costs, extends service life, prevents blade deformation or detachment, and enhances the overall performance and safety of the wind turbine.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224093581U_ABST
Patent Text Reader

Abstract

The utility model discloses a novel fan impeller connecting mechanism which comprises a splicing outer shell, a plurality of blade bottom blocks are fixedly connected in the splicing outer shell, a fixed shaft sleeve is fixedly connected in the splicing outer shell, a rotating rod is fixedly connected in the splicing outer shell, fan blades are correspondingly and fixedly connected to the blade bottom blocks, and the rotating rod is fixedly connected to the blade bottom blocks. A plurality of fifth open grooves are formed in the splicing shell, blade bottom blocks are correspondingly and movably connected into the fifth open grooves, a plurality of fourth open grooves are formed in the fixing shaft sleeve, the other ends of the blade bottom blocks are movably connected into the fourth open grooves, and a plurality of fixing blocks are fixedly connected to the fixing shaft sleeve. Through the structure, the modularization degree and the assembly efficiency of the fan impeller are improved, high efficiency and stability in the wind energy conversion process are ensured, the service life of the fan is prolonged, the maintenance cost is reduced, the blades are effectively prevented from deforming or falling off under high-speed rotation, and the overall performance and safety of the fan are improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to connecting mechanism technical field, especially in a kind of novel fan impeller connecting mechanism. BACKGROUND

[0002] Fan impeller as the core component in wind power generation equipment, its performance and stability are directly related to the power generation efficiency and service life of entire system. The traditional fan impeller connecting mechanism design is relatively complex, there is assembly difficulty, stability is insufficient etc. Problem, it has affected the overall performance of wind power generation equipment.

[0003] In the existing fan impeller connecting mechanism, usually bolted, welding etc. Mode is connected together with impeller and hub. These connection modes not only assembly process is tedious, and it is easy to cause connection loosening or failure in long time operation due to vibration, wear and tear etc. Factor, to affect the normal operation of fan. UTILITY MODEL CONTENTS

[0004] The utility model is to provide a kind of novel fan impeller connecting mechanism, improve the modular degree and assembly efficiency of fan impeller, ensure the efficiency and stability in wind energy conversion process, prolong the service life of fan, reduce maintenance cost and downtime, effectively prevent the deformation or drop of blade under high-speed rotation, improve the overall performance and safety of fan.

[0005] In order to realize the above-mentioned purpose, provide a kind of novel fan impeller connecting mechanism, including splicing shell, the splicing shell is fixedly connected with multiple blade bottom blocks in, the splicing shell is fixedly connected with fixed shaft sleeve in, the splicing shell is fixedly connected with rotating rod in, the corresponding fixed connection has fan blade on blade bottom block.

[0006] According to the novel fan impeller connecting mechanism, the splicing shell is fixedly connected with multiple symmetrical fixed extension blocks, the fixed extension block is movably connected with the bolt that penetrates, the other end of the bolt is movably connected with the nut.

[0007] According to the novel fan impeller connecting mechanism, the splicing shell is provided with multiple fifth slots, the fifth slot is movably connected with blade bottom block, and the blade bottom block is provided with symmetrical second slots.

[0008] According to the novel fan impeller connecting mechanism, the second slot is movably connected with annular column, the annular column is movably connected with annular clamping block, and the other end of the annular clamping block is movably connected in the second slot.

[0009] According to the novel fan impeller connecting mechanism, the annular clamping block is movably connected with pressure spring, and the other end of the pressure spring is movably connected with annular column.

[0010] According to the new fan impeller connecting mechanism, a plurality of fourth open grooves are formed in the fixed shaft sleeve, and the other end of the blade bottom block is movably connected in the fourth open grooves.

[0011] According to the new fan impeller connecting mechanism, a plurality of fixed blocks are movably connected in the first open grooves formed in the rotating rod.

[0012] According to the new fan impeller connecting mechanism, a third open groove is formed in the blade bottom block, and a fixed disc is movably connected in the third open groove.

[0013] Beneficial effects:

[0014] 1. By introducing the combined design of the spliced shell and the plurality of blade bottom blocks, the modularization degree and assembly efficiency of the fan impeller are improved. The fixed connection of the blade bottom block and the fan blade ensures the efficiency and stability in the wind energy conversion process. Through the fixed extension block, the bolt and the nut, the spliced shell and other components are firmly connected, the wind resistance and operation safety of the impeller are improved. The combination of the annular column, the annular clamping block and the pressure spring provides reliable dynamic support and buffering mechanism for the blade bottom block. In the process of fan operation, the blade bottom block can also effectively absorb and disperse vibration energy through the synergistic action of the annular clamping block and the pressure spring, thereby reducing the risk of blade damage and prolonging the service life of the fan.

[0015] 2. The movable connection mode of the fixed shaft sleeve and the blade bottom block facilitates the quick installation and disassembly of the impeller, allows easy replacement of individual blades during maintenance or upgrading, and reduces maintenance costs and downtime. The cooperation of the fourth open groove on the fixed shaft sleeve and the blade bottom block, and the connection of the first open groove on the rotating rod and the fixed block ensure the precise positioning and stable operation of the impeller during rotation. The configuration of the third open groove and the fixed disc provides additional fixing points and support for the blade bottom block, effectively preventing deformation or shedding of the blade under high-speed rotation, improving the overall performance and safety of the fan. The structural strength of the impeller is enhanced, and stable operation under various extreme weather conditions is effectively guaranteed.

[0016] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in conjunction with the drawings and examples.

[0018] Figure 1A sectional view of the fixing extension block of the novel fan impeller connecting mechanism is provided in the utility model.

[0019] Figure 2 A sectional view of the fixing extension block of the novel fan impeller connecting mechanism is provided in the utility model.

[0020] Figure 3 A sectional view of the fixing extension block of the novel fan impeller connecting mechanism is provided in the utility model.

[0021] Figure 4 A sectional view of the fixing extension block of the novel fan impeller connecting mechanism is provided in the utility model. Figure 3 An enlarged view of the upper A part;

[0022] Figure 5 A sectional view of the fixing extension block of the novel fan impeller connecting mechanism is provided in the utility model.

[0023] Legend:

[0024] 1, spliced shell, 2, blade bottom block, 3, fan blade, 4, fixed extension block, 5, bolt, 6, nut, 7, annular clamping block, 8, annular column, 9, pressure spring, 10, rotating rod, 11, first slot, 12, second slot, 13, fixed shaft sleeve, 14, third slot, 15, fixed disc, 16, fourth slot, 17, fixed block, 18, fifth slot. DETAILED DESCRIPTION

[0025] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0026] With reference to Figures 1-5 , the utility model embodiment a novel fan impeller connecting mechanism, it includes spliced shell 1, a plurality of blade bottom blocks 2 are fixedly connected in spliced shell 1, fixed shaft sleeve 13 is fixedly connected in spliced shell 1, rotating rod 10 is fixedly connected in spliced shell 1, corresponding fixedly connected with fan blade 3 on blade bottom block 2, ensure that the efficient use of wind energy in the conversion process.

[0027] A plurality of symmetrical fixed extension blocks 4 are fixedly connected on spliced shell 1, the bolt 5 is movably connected on the fixed extension block 4, the other end of the bolt 5 movably connects the nut 6, forms reliable fastening structure.

[0028] The spliced shell 1 is provided with a plurality of fifth slots 18, and the leaf bottom block 2 is movably connected in the fifth slots 18 in correspondence. The leaf bottom block 2 is provided with symmetrical second slots 12, thereby forming a stable support for the leaf bottom block 2.

[0029] The second slot 12 is movably connected with a ring-shaped column 8, and the ring-shaped column 8 is movably connected with a ring-shaped clamping block 7.

[0030] The ring-shaped clamping block 7 is movably connected with a pressure spring 9, and the other end of the pressure spring 9 is movably connected with the ring-shaped column 8, thereby improving the stability and durability of the mechanism.

[0031] The fixed shaft sleeve 13 is provided with a plurality of fourth slots 16, and the other end of the leaf bottom block 2 is movably connected in the fourth slots 16, thereby providing a more flexible rotating space for the leaf bottom block 2.

[0032] The fixed shaft sleeve 13 is fixedly connected with a plurality of fixed blocks 17, and the rotating rod 10 is provided with a plurality of first slots 11, and the fixed blocks 17 are movably connected in the first slots 11, thereby ensuring the stability and accuracy of the rotating rod 10 during rotation.

[0033] The leaf bottom block 2 is provided with a third slot 14, and the third slot 14 is movably connected with a fixed disc 15, thereby further enhancing the stability and wind resistance of the mechanism.

[0034] Working principle:

[0035] The spliced shell 1 is the main structure of the whole mechanism, and a plurality of blade bottom blocks 2 are installed inside through a precise fixed connection mode. The positions and angles of the blade bottom blocks 2 are accurately calculated to ensure efficient use of wind energy in the conversion process. The fan blades 3 are fixedly connected to the blade bottom blocks 2, and the shape, number and angle of the fan blades 3 are designed according to the aerodynamic principle to maximize the wind energy capture efficiency. A plurality of symmetrical fixed extension blocks 4 are fixed on the spliced shell 1, and the through bolts 5 are movably connected to the extension blocks. The other end of the bolt 5 is fastened by the nut 6 to form a reliable connection structure and enhance the overall stability of the mechanism. The blade bottom block 2 is movably connected in the fifth slot 18 formed in the spliced shell 1. This design not only facilitates the installation and removal of the blade bottom block 2, but also provides flexible rotation space for the blade bottom block 2. The annular column 8 is movably connected in the second slot 12 formed in the blade bottom block 2. The annular clamp block 7 is movably connected to the annular column 8, and the other end of the annular clamp block 7 is movably connected in the second slot 12 to form a stable support for the blade bottom block 2. The pressure spring 9 is movably connected in the annular clamp block 7, and the other end of the pressure spring 9 is movably connected to the annular column 8. When the fan is running, the blade bottom block 2 will be impacted and vibrated by the wind force, and the pressure spring 9 can absorb the impact and vibration energy, thereby improving the stability and durability of the mechanism. A plurality of fourth slots 16 are formed in the fixed shaft sleeve 13, and the other end of the blade bottom block 2 is movably connected in the slots to provide more flexible rotation space for the blade bottom block 2. The fixed block 17 fixedly connected to the fixed shaft sleeve 13 is movably connected with the first slot 11 formed in the rotating rod 10. This design ensures the stability and accuracy of the rotating rod 10 during rotation, and prevents deviation or shaking due to vibration or wind force changes. The fixed disc 15 is movably connected in the third slot 14 formed in the blade bottom block 2. The presence of the fixed disc 15 further enhances the stability and wind resistance of the mechanism, especially in strong wind conditions, which can prevent the blade bottom block 2 from deforming or being damaged due to excessive force.

[0036] The embodiments of the utility model are described in detail above combined with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A novel fan impeller connection mechanism, comprising a splicing housing (1), characterized in that: Multiple blade base blocks (2) are fixedly connected inside the splicing shell (1), a fixed bushing (13) is fixedly connected inside the splicing shell (1), a rotating rod (10) is fixedly connected inside the splicing shell (1), and corresponding fan blades (3) are fixedly connected on the blade base blocks (2).

2. The novel fan impeller connection mechanism according to claim 1, characterized in that, Multiple symmetrical fixed extension blocks (4) are fixedly connected to the splicing shell (1), and through bolts (5) are movably connected to the fixed extension blocks (4). A nut (6) is movably connected to the other end of the bolts (5).

3. The novel fan impeller connection mechanism according to claim 1, characterized in that, The splicing shell (1) has multiple fifth slots (18), and blade base blocks (2) are movably connected in the corresponding fifth slots (18). The blade base blocks (2) have symmetrical second slots (12).

4. The novel fan impeller connection mechanism according to claim 3, characterized in that, An annular column (8) is movably connected in the second slot (12), and an annular clamp (7) is movably connected on the annular column (8). The other end of the annular clamp (7) is movably connected in the second slot (12).

5. A novel fan impeller connection mechanism according to claim 4, characterized in that, A pressure spring (9) is movably connected inside the annular clamp (7), and the other end of the pressure spring (9) is movably connected to the annular column (8).

6. The novel fan impeller connection mechanism according to claim 1, characterized in that, The fixed bushing (13) has multiple fourth slots (16), and the other end of the blade bottom block (2) is movably connected to the fourth slot (16).

7. The novel fan impeller connection mechanism according to claim 1, characterized in that, Multiple fixing blocks (17) are fixedly connected to the fixed bushing (13), and multiple first slots (11) are opened on the rotating rod (10). The fixing blocks (17) are movably connected in the first slots (11).

8. The novel fan impeller connection mechanism according to claim 1, characterized in that, A third slot (14) is provided on the blade bottom block (2), and a fixed disc (15) is movably connected in the third slot (14).