Fan hub reinforcing structure

Abstract

The utility model belongs to the field of hubs, particularly relates to a fan hub reinforcing structure, and aims to solve the problem that the existing hub is loosened due to the fact that the existing hub cannot deform in the continuous rotation process, namely the out-of-roundness phenomenon occurs, the fan hub reinforcing structure comprises a hub, a plurality of evenly-distributed mounting holes are annularly formed in the outer portion of the hub, a penetrating hole is formed in the middle section of the hub, a connecting base is detachably arranged on the side, located on the penetrating hole, of the hub, the same fan shaft is arranged in the penetrating hole and the connecting base in a penetrating mode, and connecting holes are annularly formed in the two ends of the connecting base. And the connecting assembly is arranged between the hub and the connecting seat and is used for enhancing the connecting strength between the hub and the connecting seat. Through the arrangement of the connecting assembly, the connecting stability is enhanced, the out-of-round of the hub can be calibrated, abrasion caused by vibration, impact and unbalance is reduced, and the service life of the hub and other related parts is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hubs, and in particular to a fan hub reinforcement structure. Background Art

[0002] The wind turbine hub is a key component in a wind turbine. It connects the blades and the main shaft of the wind turbine, allowing the blades to rotate around the main shaft, thereby capturing wind energy and converting it into mechanical energy.

[0003] The wind turbine hub reinforcement structure refers to a series of design and engineering measures taken to improve the strength and stability of the wind turbine hub and prevent it from deformation or damage in extreme wind conditions or long-term operation.

[0004] Currently, the existing wind turbine hub reinforcement structure is unable to perform calibration and adjustment when the hub deforms during continuous rotation, that is, when out-of-round occurs. This can cause the hub to loosen due to vibration, impact or long-term operation, reducing the service life of the hub and other related components. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art that the hub cannot be calibrated and adjusted when it encounters deformation during continuous rotation, that is, when out-of-round occurs, which causes the hub to loosen, and to propose a fan hub reinforcement structure.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A fan hub reinforcement structure, comprising:

[0008] The hub has a plurality of evenly distributed mounting holes in a ring shape on its exterior, a through hole in the middle of the hub, a detachable connecting seat on one side of the through hole, the through hole and the connecting seat having the same fan shaft, and both ends of the connecting seat having ring-shaped connecting holes;

[0009] A connecting assembly is provided between the wheel hub and the connecting seat and is used to strengthen the connection between the two;

[0010] The locking assembly is arranged on the connecting seat and is used to lock and fix the connecting seat and the fan shaft.

[0011] In one possible design, the connecting assembly includes a plurality of spoke rods, one end of each of the spoke rods is provided with an elbow, the other ends of the plurality of spoke rods are respectively passed through a plurality of mounting holes, spoke caps can be detachably placed in the plurality of mounting holes of the wheel hub, the plurality of spoke caps are threadedly connected to the plurality of spoke rods, and a flat groove is provided on the top of the spoke caps.

[0012] In one possible design, the locking assembly includes a connecting head fixedly arranged on one side of the connecting seat, a conical groove is provided inside the connecting seat on one side of the connecting head, and four clamping blocks distributed in a ring are detachably placed inside the conical groove, the four clamping blocks are located outside the fan shaft, a locking nut is threadedly connected to one side of the connecting head, and a stop block is fixed on the inner side of the locking nut.

[0013] In a possible design, a plurality of reinforcing ribs are fixedly provided on the inner side of the hub in an annular shape.

[0014] In a possible design, the plurality of spoke rods are respectively inserted into a plurality of connecting holes at one end of the connecting seat, and the elbows abut against the connecting holes.

[0015] In a possible design, the locking nut and the stop block are both sleeved on the outside of the fan shaft.

[0016] In this application, when starting to use, first ensure that all necessary parts are complete, then check the integrity and damage of all parts to ensure that there are no defects such as cracks, deformation or wear, then put the locking nut, connecting seat and hub on the outside of the fan shaft in sequence, and place the hub in the predetermined position, ensure that the through hole is aligned with the axis of the fan shaft, then use fasteners (such as bolts or pins) to preliminarily fix the connecting seat to the hub through the connecting hole on the connecting seat for subsequent installation of other components, then pass one end of multiple spoke rods through the connecting hole on the connecting seat one by one and pull them so that the part with the elbow is against the outside of the connecting hole of the connecting seat, and ensure that the elbow is tightly against the connecting hole to provide initial stability, then pass the other end of the spoke rod through the multiple mounting holes of the hub one by one, and place a spoke cap in each mounting hole, ensuring that the threaded hole of the spoke cap is aligned with the threaded hole of the spoke cap. The threaded part of the spoke rod is aligned, and then a tool is used to insert the spoke cap into the flat groove and rotate it so that it is threadedly connected to the spoke rod and tightened. Then, the four clamping blocks are placed in a ring shape in the conical groove and the four clamping blocks are wrapped around the outside of the fan shaft. Then, the locking nut is turned to thread the connector. During the tightening process of the locking nut, the abutment on the inside of the locking nut will gradually push the clamping block closer to the fan shaft until the clamping block firmly clamps the fan shaft. Finally, use the tool to continue rotating the locking nut until the predetermined tightening torque is reached to ensure that the connection between the connecting seat and the fan shaft is firm and reliable. Then start the fan for a trial run and observe the working status of the reinforced structure to ensure that there are no abnormal vibrations, noises and other problems. If the out-of-round situation is found during the rotation, the tightness of the spoke cap can be adjusted in turn to change the pulling force direction of the spoke rod to calibrate the out-of-round situation.

[0017] The utility model has the following beneficial effects:

[0018] In the present invention, by setting a connecting assembly, the spoke rod is passed through the mounting hole of the wheel hub and inserted into the connecting hole of the connecting seat, the elbow is abutted against the connecting hole to ensure a stable connection, and then a tool is used to thread the spoke nipple and the spoke rod through the flat groove for tightening, which significantly enhances the structural connection strength between the wheel hub and the connecting seat and ensures stable operation under high speed and harsh working conditions. When the wheel hub encounters deformation during continuous rotation, that is, when out-of-round phenomenon occurs, the tightness of the spoke nipple is finely adjusted in turn, thereby accurately changing the tension distribution and force direction of the spoke rod, and implementing efficient and accurate out-of-round calibration operation;

[0019] The utility model provides a locking assembly. When the locking nut is rotated, the stop block pushes the clamping block toward the fan shaft to achieve clamping and fixation, thereby ensuring a tight connection between the connecting seat and the fan shaft, effectively preventing the hub from loosening due to vibration, impact or long-term operation, thereby reducing the risk of safety accidents caused by connection failure.

[0020] The utility model not only strengthens the stability of the connection by setting the connection component, but also can calibrate the out-of-roundness of the wheel hub, reduces the wear caused by vibration, impact and imbalance, and extends the service life of the wheel hub and other related components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a fan hub reinforcement structure proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the overall disassembled structure of a fan hub reinforcement structure proposed by the utility model;

[0023] Figure 3 This is a schematic diagram of the separation structure of the connection components of a fan hub reinforcement structure proposed by the present invention;

[0024] Figure 4 This is a schematic diagram of the separation structure of the locking assembly of the fan hub reinforcement structure proposed by the utility model.

[0025] In the figure: 1. Hub; 101. Mounting hole; 102. Reinforcement rib; 103. Through hole; 2. Connecting seat; 201. Connecting head; 3. Clamping block; 4. Locking nut; 401. Abutment block; 5. Spoke rod; 501. Elbow; 6. Spoke nipple; 601. Flat groove; 7. Fan shaft. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Example 1

[0028] Reference Figure 1-4 , a reinforcement structure comprising:

[0029] The hub 1 is the main load-bearing component, and a plurality of mounting holes 101 are evenly distributed in a ring shape on its outside for installing and fixing other components. A through hole 103 is provided in the middle section of the hub 1 for passing the fan shaft 7. The connecting seat 2 is detachably arranged on one side of the hub 1 at the through hole 103 to strengthen the contact surface between the hub 1 and the fan shaft 7. Connection holes are provided at both ends of the connecting seat 2 in a ring shape for connecting with the locking components of the spoke rod 5 and the fan shaft 7.

[0030] The connecting assembly is mainly composed of a plurality of spoke rods 5 and spoke caps 6. One end of the spoke rod 5 is provided with an elbow 501, and the other end passes through the mounting hole 101 of the wheel hub 1 and is inserted into the connecting hole of the connecting seat 2. The elbow 501 is abutted against the connecting hole to ensure a stable connection. The spoke cap 6 can be detachably placed in the mounting hole 101 of the wheel hub 1 and is threadedly connected to the spoke rod 5. A flat groove 601 is also provided on the top of the spoke cap 6 for easy tightening with tools. When the wheel hub 1 encounters deformation during continuous rotation, that is, out-of-round phenomenon occurs, the tightness of the spoke cap 6 is finely adjusted in turn to accurately change the tension distribution and force direction of the spoke rod 5, thereby implementing efficient and accurate out-of-round calibration operations.

[0031] The locking assembly includes a connector 201, a clamping block 3, a locking nut 4 and a stop block 401. The connector 201 is fixedly arranged on one side of the connecting seat 2, and a conical groove is opened inside it. Four clamping blocks 3 distributed in a ring shape can be detachably placed in the conical groove. The clamping block 3 is located on the outside of the fan shaft 7 and is used to clamp and fix the fan shaft 7 when locking. The locking nut 4 is threadedly connected to the connector 201, and a stop block 401 is fixedly arranged on the inside of the locking nut 4. When the locking nut 4 rotates, the stop block 401 pushes the clamping block 3 closer to the fan shaft 7 to achieve clamping and fixation, ensuring a tight connection between the connecting seat and the fan shaft, and effectively preventing the hub 1 from loosening due to vibration, impact or long-term operation, thereby reducing the risk of safety accidents caused by connection failure.

[0032] The present application can be used in the field of wind turbine hub reinforcement technology, and can also be used in other fields applicable to the present application.

[0033] Example 2

[0034] Based on the first embodiment, the second embodiment further includes: a wind turbine hub reinforcement structure, which is applied to the technical field of wind turbine hub reinforcement structures. A plurality of reinforcing ribs 102 are fixedly provided in a ring shape on the inner side of the hub 1 to enhance the overall strength and rigidity of the hub 1.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fan hub reinforcement structure, characterized in that: include: A hub (1), wherein the outer portion of the hub (1) is provided with a plurality of evenly distributed mounting holes (101) in an annular shape, a through hole (103) is provided in the middle portion of the hub (1), a connecting seat (2) is detachably provided on one side of the through hole (103) of the hub (1), a same fan shaft (7) is provided in the through hole (103) and the connecting seat (2), and both ends of the connecting seat (2) are provided with connecting holes in an annular shape; A connecting assembly is provided between the wheel hub (1) and the connecting seat (2) and is used to strengthen the connection strength between the two; A locking assembly is provided on the connecting seat (2) and is used to lock and fix the connecting seat (2) and the fan shaft (7).

2. A wind turbine hub reinforcement structure according to claim 1, characterized in that: The connecting assembly comprises a plurality of spoke rods (5), one end of each of the plurality of spoke rods (5) is provided with an elbow (501), the other ends of each of the plurality of spoke rods (5) are respectively inserted into a plurality of mounting holes (101), spoke caps (6) are detachably placed in the plurality of mounting holes (101) of the wheel hub (1), the plurality of spoke caps (6) are threadedly connected to the plurality of spoke rods (5), and a flat groove (601) is provided on the top of each of the spoke caps (6).

3. The wind turbine hub reinforcement structure according to claim 1, characterized in that: The locking assembly comprises a connecting head (201) fixedly arranged on one side of the connecting seat (2); a conical groove is provided inside the connecting seat (2) on one side of the connecting head (201); and four clamping blocks (3) arranged in a ring shape are detachably placed inside the conical groove; the four clamping blocks (3) are located outside the fan shaft (7); a locking nut (4) is threadedly connected to one side of the connecting head (201), and a stop block (401) is fixedly provided on the inner side of the locking nut (4).

4. The wind turbine hub reinforcement structure according to claim 1, characterized in that: A plurality of reinforcing ribs (102) are fixedly provided on the inner side of the wheel hub (1) in an annular shape.

5. The wind turbine hub reinforcement structure according to claim 2, characterized in that: The plurality of spoke rods (5) are respectively inserted into a plurality of connection holes at one end of the connection seat (2), and the elbow (501) abuts against the connection hole.

6. The wind turbine hub reinforcement structure according to claim 3, characterized in that: The locking nut (4) and the stop block (401) are both sleeved on the outside of the fan shaft (7).

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