Rotating mechanism and air blowing equipment

Abstract

The embodiment of the invention discloses a rotating mechanism and blowing equipment, and relates to the technical field of rotating devices.The rotating mechanism comprises a driving source and a balance assembly, and the driving source is provided with a rotating shaft; the rotating shaft is sleeved with the balance assembly, the balance assembly is provided with a balance weight part capable of rotating relative to the rotating shaft, and the driving source drives the rotating shaft to rotate so that the rotating shaft can drive the balance assembly to rotate. According to the technical scheme provided by the embodiment of the invention, the dynamic balance self-adaptive adjustment of the rotating mechanism is realized, and the practicability and the structural reliability of the rotating mechanism are improved.

Description

Technical Field

[0001] The embodiments in this application relate to the field of rotating device technology, and in particular to a rotating mechanism and a blowing device. Background Technology

[0002] In related technologies, blower devices such as fans and hair dryers can use a rotating mechanism to drive the fan blades to rotate and achieve air blowing. However, due to the uneven distribution of the fan blade mass, when the rotating mechanism drives the fan blades to rotate, the rotation center of the rotor and the center of mass have a certain positional deviation, which causes the blower device to generate a certain vibration and noise during operation. Summary of the Invention

[0003] Several embodiments in this application propose a rotating mechanism and a blowing device, aiming to achieve adaptive adjustment of the dynamic balance of the rotating mechanism, thereby improving the practicality and structural reliability of the rotating mechanism.

[0004] One embodiment of this application proposes a rotating mechanism including a drive source and a balancing component. The drive source is provided with a rotating shaft. The balancing component is sleeved on the rotating shaft and is provided with a counterweight that can rotate relative to the rotating shaft. The drive source drives the rotating shaft to rotate, so that the rotating shaft drives the balancing component to rotate.

[0005] In one embodiment, the counterweight is movably disposed in a radial direction away from the axis of rotation.

[0006] In one embodiment, the balancing assembly includes a connector comprising an inner ring and an outer ring that are rotatably coupled to each other, the inner ring of the connector being sleeved on the rotating shaft, and the counterweight (31) being disposed on the outer ring.

[0007] In one embodiment, the counterweight is telescopically connected to the outer ring.

[0008] In one embodiment, the balancing assembly further includes a balancing bracket connected to the outer ring of the connector, the balancing bracket having a receiving cavity, the counterweight disposed within the receiving cavity, and the balancing assembly further includes a return member connected to the counterweight for driving the counterweight to move toward the rotation axis.

[0009] In one embodiment, a support column protrudes from the inner wall of the receiving cavity, and the end of the return member facing away from the counterweight is sleeved on the support column, with the support column and the counterweight spaced apart.

[0010] In one embodiment, the balance bracket includes a fixed section and a sleeve section. The fixed section is disposed on the outer ring of the connector, and one end of the sleeve section is inserted into the fixed section. The sleeve section forms the receiving cavity.

[0011] In one embodiment, the fixed section is threadedly connected to one end of the sleeve section.

[0012] In one embodiment, the rotating mechanism includes at least two balancing components, which are spaced apart and sleeved on the rotating shaft.

[0013] This application also proposes a blower device, which includes a fan blade and a rotating mechanism, wherein the rotating mechanism is the aforementioned rotating mechanism, the fan blade is connected to the rotating mechanism, and the rotating mechanism drives the fan blade to rotate.

[0014] In one embodiment, the rotating mechanism includes a drive source, and the blower further includes a drive source bracket, with at least one elastic connector between the drive source and the drive source bracket.

[0015] In one embodiment, the fan blade includes a fan blade seat and a plurality of blades, the plurality of blades being spaced apart and arranged around the periphery of the fan blade seat, the blades being rotatable relative to the fan blade seat.

[0016] In the various embodiments provided in this application, a balancing assembly is fitted onto the rotating shaft. The counterweight of the balancing assembly is rotatably configured relative to the rotating shaft. When the drive source drives the rotating shaft, the rotating shaft drives the balancing assembly to rotate. During this process, as the rotating shaft gradually increases its speed from an initial speed to a preset speed, there is a certain speed difference between the counterweight and the rotating shaft. This speed difference gradually decreases, and after the rotating shaft reaches the preset speed, the rotation of the counterweight gradually becomes synchronized with the rotation speed of the rotating shaft. Thus, after this synchronization process, due to the self-centering effect of the rotating shaft, the centrifugal force on the counterweight generates a component force biased in the opposite direction to the rotor's center of mass. This allows the counterweight to gradually move to a position symmetrical to the rotor's center of mass relative to the rotating shaft. This allows the counterweight to balance the offset of the rotor's center of mass, ensuring that after the rotating shaft reaches the preset speed, the overall center of mass stably tends towards the center of the rotating shaft. This achieves the dynamic balance self-adaptive capability of the rotating mechanism, effectively reducing vibration and noise generated during operation, and improving the practicality and structural reliability of the rotating mechanism. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments or prior art of this application, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of an embodiment of the rotating mechanism provided in this application.

[0019] Figure 2 for Figure 1 A front view of the rotating mechanism.

[0020] Figure 3 for Figure 2 A magnified view of a section AA in the middle.

[0021] Explanation of icon numbers:

[0022] 100. Rotating mechanism; 10. Drive source; 11. Rotating shaft; 30. Balancing assembly; 31. Counterweight; 33. Connector; 35. Balancing bracket; 351. Fixed section; 353. Sleeve section; 3531. Receiving cavity; 3533. Support column; 37. Returning component. Detailed Implementation

[0023] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of several embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] It should be noted that if multiple embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0025] Furthermore, if multiple embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0026] In related technologies, blower devices such as fans and hair dryers can use a rotating mechanism to drive the fan blades to rotate and achieve air blowing. However, due to the uneven distribution of the fan blade mass, when the rotating mechanism drives the fan blades to rotate, the rotation center of the rotor and the center of mass have a certain positional deviation, which causes the blower device to generate a certain vibration and noise during operation.

[0027] It is understandable that due to differences in the manufacturing process of individual fan blades, the overall center of mass of the fan blades is usually offset from the rotation center of the rotating mechanism's shaft. This offset can cause vibration and noise when the rotating mechanism drives the fan blades, potentially damaging the shaft during prolonged operation. Therefore, existing technologies typically require dynamic balancing during the assembly of the rotating mechanism and fan blades. By identifying and adjusting the imbalance points of the fan blades, the risks of vibration and noise caused by rotor imbalance are reduced. However, the dynamic balancing test and adjustment process is cumbersome, impacting the production efficiency of the blower equipment. Furthermore, for rotor structures with adjustable blade pitch, the overall center of mass changes after blade rotation, making simple dynamic balancing unsuitable. Precise adjustment of the blade rotation mechanism is required to ensure overall rotor dynamic balance during blade pitch adjustment, necessitating a complex adjustment process for the blower equipment. To address these issues, this application proposes a rotating mechanism 100.

[0028] Please see Figures 1 to 3 In one embodiment of this application, the rotating mechanism 100 includes a drive source 10 and a balancing component 30. The drive source 10 is provided with a rotating shaft 11. The balancing component 30 is sleeved on the rotating shaft 11 and is provided with a counterweight 31 that can rotate relative to the rotating shaft 11. The drive source 10 drives the rotating shaft 11 to rotate so that the rotating shaft 11 drives the balancing component 30 to rotate.

[0029] In this application, the drive source 10 can be a power device such as a motor or pump. A rotating shaft 11 can be extended outward from one side of the drive source 10, allowing the drive source 10 to transmit power to the rotating shaft 11 and drive it to rotate. Furthermore, by connecting the rotating shaft 11 to an external device, the rotating mechanism 100 can output kinetic energy. The rotating mechanism 100 can be used in various devices, such as fans, hair dryers, and other air-blowing devices. In this case, the rotating shaft 11 can be connected to fan blades, using the rotating shaft 11 to drive the fan blades to rotate and achieve the air-blowing function. Alternatively, the rotating mechanism 100 can also connect the rotating shaft 11 to a propeller or similar device such as a boat propeller.

[0030] By mounting a balancing assembly 30 on the rotating shaft 11, the balancing assembly 30 can be a rod structure or a plate structure. Bearings, collars, etc. can be used to mount the balancing assembly 30 so that when the rotating shaft 11 rotates, the balancing assembly 30 can be driven to rotate by the damping force in the bearing. By setting metal blocks, balls, etc. on the balancing assembly 30 to form a certain counterweight 31, the counterweight 31 can be subjected to a certain centrifugal force when rotating relative to the rotating shaft 11. It can be gradually moved to the opposite position of the rotor's center of mass by the balancing assembly 30, thereby realizing the dynamic balance adjustment of the rotor connected to the rotating shaft 11 by the balancing assembly 30.

[0031] During the process of the drive source 10 driving the rotating shaft 11 to rotate, the rotational speed of the rotating shaft 11 can gradually accelerate from zero to the set speed. At this time, when the rotating shaft 11 just starts to rotate, there may be some free rotation between the balancing component 30 and the rotating shaft 11. As the rotational speed of the rotating shaft 11 increases, under the damping force of the bearing, collar and other structures, the balancing component 30 is gradually driven by the rotating shaft 11 to rotate around the rotating shaft 11. At this time, there may be a certain speed difference between the rotational speed of the counterweight 31 and the rotational speed of the rotating shaft 11. As the rotational speed of the rotating shaft 11 increases, the speed difference between the counterweight 31 and the rotating shaft 11 can gradually decrease. After the drive source 10 drives the rotating shaft 11 to reach the preset speed, the rotational speed of the rotating shaft 11 no longer increases, and the rotational speed of the counterweight 31 can gradually become consistent with the rotational speed of the rotating shaft 11. Thus, due to the self-centering phenomenon that exists when the rotating shaft drives the rotor to rotate, which refers to the rotor tending to rotate around its own center of mass when it exceeds its critical speed, the centrifugal force generated by the eccentric mass of the counterweight is biased in the opposite direction to the rotor's center of mass. This helps to adjust the eccentric mass of the entire system, suppress vibration, and thus reduce amplitude and improve operational stability. Consequently, after the counterweight 31 rotates synchronously with the rotating shaft 11, the centrifugal force on the counterweight 31 can generate a component force biased in the opposite direction to the rotor's center of mass. This allows the counterweight 31 to gradually rotate to the center of the rotating shaft 11 relative to the rotor's center of mass due to centrifugal inertia. At a symmetrical position along the axis, when the rotating shaft 11 drives the fan blades and other components to rotate, the rotating counterweight 31 can be used to balance the offset of the rotor's center of mass, so that the overall rotor center of mass of the rotating mechanism 100 can gradually approach the rotor's rotation center. This allows the rotating mechanism 100 to achieve dynamic balance of the rotor using the balancing component 30 after operation, realizing adaptive adjustment of the dynamic balance of the rotating mechanism 100. This effectively reduces the rotor dynamic balance testing and adjustment process of devices such as blowers, or can be used in blowers with adjustable blades to meet dynamic balance adjustments under different conditions, achieving a simpler overall structural design and further improving the practicality and structural reliability of the rotating mechanism 100.

[0032] In one embodiment of this application, a balancing component 30 is fitted onto the rotating shaft 11. The counterweight 31 of the balancing component 30 is rotatably configured relative to the rotating shaft 11. When the drive source 10 drives the rotating shaft 11 to rotate, the rotating shaft 11 can drive the balancing component 30 to rotate. At this time, as the rotating shaft 11 gradually increases from the initial speed to the preset speed, there is a certain speed difference between the counterweight 31 of the balancing component 30 and the rotating shaft 11, and the speed difference gradually decreases. After the speed of the rotating shaft 11 reaches the preset speed, the rotation of the counterweight 31 can gradually be consistent with the speed of the rotating shaft 11. Thus, after the synchronous rotation speed process, due to the self-centering effect of the rotating system, the centrifugal force on the counterweight 31 can generate a component force biased in the opposite direction to the rotor's center of mass, so that the counterweight 31 can gradually move to a position symmetrical to the rotor's center of mass relative to the rotating shaft 11. In this way, the counterweight 31 can be used to balance the offset of the rotor's center of mass, so that after the rotating shaft 11 reaches the preset speed, the rotor's center of mass can stably tend towards the central axis of the rotating shaft 11, realizing the dynamic balance self-adaptive capability of the rotating mechanism 100, effectively reducing the vibration and noise generated during the operation of the rotating mechanism 100, and improving the practicality and structural reliability of the rotating mechanism 100.

[0033] See Figure 3 In one embodiment of this application, the counterweight 31 is movable in a direction away from the rotation axis 11.

[0034] The magnitude of the centrifugal force experienced by the counterweight 31 during rotation is related to the weight of the counterweight 31 and the distance between the counterweight 31 and the rotating shaft 11. A larger weight of the counterweight 31 can generate a larger eccentricity; a larger distance between the counterweight 31 and the rotating shaft 11 can also generate a larger eccentricity. A larger eccentricity when the counterweight 31 rotates with the rotating shaft 11 allows the balancing assembly 30 to adapt to higher rotor imbalances, achieving a better rotor dynamic balancing effect. However, when the eccentricity between the counterweight 31 and the rotating shaft 11 is large, the moment of inertia of the counterweight 31 is correspondingly large, requiring a larger starting torque. This can easily cause the rotating shaft 11 to drive the balancing assembly 30 to produce significant freewheeling, and there is a certain probability that the counterweight 31 cannot be properly driven to the required rotational state.

[0035] Therefore, in this embodiment, by movably arranging the counterweight 31 in a direction away from the rotating shaft 11, the counterweight 31 can be positioned close to the rotating shaft 11 when the rotating shaft 11 is not rotating. This reduces the moment of inertia of the balancing assembly 30 in the initial stage of the rotating shaft 11 being driven by the drive source 10, thereby reducing the starting torque required by the balancing assembly 30 and reducing the idling of the balancing assembly 30 relative to the rotating shaft 11, thus better utilizing the rotating shaft 11 to drive the balancing assembly 30 to rotate. As the balancing assembly 30 rotates, the counterweight 31 can gradually move away from the rotating shaft 11 under the action of centrifugal force, causing the counterweight 31 to gradually move outward. This allows the counterweight 31 to provide a larger eccentricity, enabling the balancing assembly 30 to better balance a larger range of rotor mass center offset, achieving a more stable and reliable dynamic balance adaptive adjustment effect for the rotating mechanism 100.

[0036] Specifically, a groove or cavity extending perpendicular to the central axis of the rotating shaft 11 can be provided on the balancing assembly 30, allowing the counterweight 31 to move stably on the balancing assembly 30 in a direction away from the rotating shaft 11. This enables the rotating shaft 11 to rotate more stably, thus better achieving adaptive dynamic balance adjustment of the rotating mechanism 100. When the rotating mechanism 100 stops operating, the counterweight 31 can be manually or using a push rod device to reset it to a position near the rotating shaft 11, ensuring that the rotating shaft 11 can drive the balancing assembly 30 more stably when the rotating mechanism 100 operates again. Alternatively, a spring or other reset structure can be provided on the balancing assembly 30, causing the reset structure to elastically deform when the counterweight 31 moves away from the rotating shaft 11 under centrifugal force, thereby enabling the counterweight 31 to reset using the elastic force when the rotating mechanism 100 stops.

[0037] See Figure 1 and Figure 3 In one embodiment of this application, the balancing component 30 includes a connector 33, which includes an inner ring and an outer ring that are rotatably coupled to each other. The inner ring of the connector 33 is sleeved on the rotating shaft 11, and the counterweight 31 is disposed on the outer ring.

[0038] In this embodiment, the connector 33 can be a bearing, a double-ring structure, etc. The inner ring of the connector 33 is sleeved on the rotating shaft 11, and the outer ring of the connector 33 is connected to a balance bracket 35. The balance bracket 35 can be a long rod or a long plate structure, allowing the counterweight 31 to slide on the balance bracket 35 so that the counterweight 31 can move away from the rotating shaft 11 when rotating. Furthermore, by using the connector 33 sleeved on the rotating shaft 11, when the driving source 10 drives the rotating shaft 11 to rotate... The inner ring of the connector 33 can rotate synchronously with the rotating shaft 11. When the connector 33 adopts a bearing structure, the outer ring of the connector 33 can rotate around the rotating shaft 11 due to the damping force of the grease or lubricating oil added between the rolling elements such as balls and sliders between the inner and outer rings. When the connector adopts a collar structure, the inner and outer rings can have a matching snap-fit ​​structure. By setting materials such as lubricant between the inner and outer rings, the inner and outer rings can be rotated relative to each other.

[0039] Thus, during the process of the rotating shaft 11 increasing from the initial speed to the preset speed, there can be a certain speed difference between the outer and inner rings of the connecting member 33. This allows the counterweight or balance bracket 35 to stably drive the counterweight 31 to rotate under the action of the connecting member 33, enabling the counterweight 31 to rotate stably to the opposite side of the rotor's center of mass, achieving stable dynamic balance adaptive adjustment of the rotating mechanism 100. The balance bracket 35 can form a groove or cavity to accommodate the counterweight 31, allowing the counterweight 31 to move stably on the balance bracket 35 in a direction away from the rotating shaft 11, so that the rotating shaft 11 can drive the counterweight 31 to rotate more stably.

[0040] The installation method of using connector 33 to fit the balance component 30 onto the rotating shaft 11 can better reduce the resistance of the balance component 30 as it rotates with the rotating shaft 11, so that the balance component 30 can rotate more smoothly around the rotating shaft 11, and further improve the structural stability and reliability of the rotating mechanism 100.

[0041] In one embodiment, the counterweight 31 is telescopically connected to the outer ring.

[0042] In this embodiment, the counterweight 31 can be designed as a telescopic device such as a telescopic sleeve or telescopic pendulum. The counterweight 31 is connected to the outer ring of the connector 33, so that the counterweight 31 can be telescopically mounted on the outer ring. Before the rotating shaft 11 rotates, the counterweight 31 can be retracted and brought closer to the rotating shaft 11, so that the inner ring can better drive the outer ring to rotate after rotating with the rotating shaft 11, reducing the idle rotation of the balancing component 30. At the same time, during the process of the outer ring and the inner ring reaching the same speed, the counterweight 31 can be stretched by the centrifugal force, so that the counterweight 31 moves away from the rotating shaft 11 radially, so that the counterweight 31 can balance the center of mass offset under the action of centrifugal force, further improving the structural stability and reliability of the rotating mechanism 100.

[0043] See Figure 3 In one embodiment of this application, the balancing assembly 30 further includes a balancing bracket 35, which is connected to the outer ring of the connector 33. The balancing bracket 35 has a receiving cavity 3531, and the counterweight 31 is disposed in the receiving cavity 3531. The balancing assembly 30 also includes a return member 37, which is connected to the counterweight 31 and is used to drive the counterweight 31 to move toward the rotating shaft 11.

[0044] In this embodiment, the balance support 35 can be hollow, so that a certain receiving cavity 3531 can be formed inside the balance support 35, which can accommodate the counterweight 31 inside the balance support 35, better preventing the counterweight 31 from being detached from the balance support 35 by centrifugal force, achieving a better dynamic balance self-adaptive effect of the rotating mechanism 100, and further improving the structural stability and reliability of the balance component 30.

[0045] By connecting the return component 37 to the counterweight 31, the return component 37 can be a spring, tension spring or other structure with a certain elasticity, so that the return component 37 can support the counterweight 31 when the rotating mechanism 100 stops, so that the counterweight 31 is located near the rotating shaft 11. During the process of the drive source 10 driving the rotating shaft 11 to rotate and causing the counterweight 31 to rotate around the rotating shaft 11, the counterweight 31 moves away from the rotating shaft 11 under the action of centrifugal force. This allows the counterweight 31 to exert a force on the return member 37, causing the return member 37 to undergo elastic deformation. This allows the counterweight 31 to gradually move away from the rotating shaft 11 and ensures the adaptive adjustment effect of the dynamic balance of the rotating mechanism 100. When the rotating mechanism 100 stops, the centrifugal force on the counterweight 31 gradually disappears, causing the force on the return member 37 to gradually disappear. The elastic force of the return member 37 restoring its elastic deformation can be used to drive the counterweight 31 to move towards the rotating shaft 11. This allows the counterweight 31 to stably return to a position near the rotating shaft 11 when the rotating mechanism 100 stops, ensuring that the balancing component 30 reduces idling when the rotating mechanism 100 restarts, and further improving the structural stability and reliability of the rotating mechanism 100.

[0046] See Figure 3 In one embodiment of this application, a support column 3533 protrudes from the inner wall of the receiving cavity 3531, and the end of the return member 37 facing away from the counterweight 31 is sleeved on the support column 3533. The support column 3533 and the counterweight 31 are spaced apart.

[0047] Furthermore, by providing a support column 3533 protruding on the inner wall of the receiving cavity 3531, which can be positioned opposite to the rotation center line of the rotating shaft 11, one end of the return member 37 is fitted with the support column 3533 and the other end of the return member 37 is connected to the counterweight 31. This allows the counterweight 31 to abut against the support column 3533 when it moves away from the rotating shaft 11 to the maximum eccentricity. The support column 3533 better supports and limits the counterweight 31, ensuring the stable balance adjustment of the rotor mass center by the balancing assembly 30, and further improving the structural stability and reliability of the balancing assembly 30.

[0048] See Figure 3 In one embodiment of this application, the balance bracket 35 includes a fixed section 351 and a sleeve section 353. The fixed section 351 is disposed on the outer ring of the connector 33. One end of the sleeve section 353 is inserted into the fixed section 351, and a receiving cavity 3531 is formed inside the sleeve section 353.

[0049] In this embodiment, the balance bracket 35 can adopt a split structure design of a fixed section 351 and a sleeve section 353. The fixed section 351 is fixedly mounted on the outer ring of the connector 33, and the fixed section 351 is inserted into the opening at one end of the sleeve section 353, so that the fixed section 351 and the sleeve section 353 are stably connected to form the balance bracket 35. This facilitates the easier assembly and disassembly of the balance bracket 35 for the assembly or maintenance of the counterweight 31 and the return component 37, thereby improving the ease of assembly and disassembly and practicality of the balance assembly 30. At the same time, the detachable balance bracket 35 design allows for better configuration of balance bracket 35 of appropriate length and counterweight 31 of appropriate weight according to the components connected to the rotating mechanism 100. This enables the rotating mechanism 100 to be better adapted to various equipment, improves the dynamic balance adaptive adjustment range of the rotating mechanism 100, and further enhances the practicality and structural reliability of the rotating mechanism 100.

[0050] See Figure 3 In one embodiment of this application, the fixed section 351 is threadedly connected to one end of the sleeve section 353.

[0051] In this embodiment, the outer periphery of the fixed section 351 may be provided with an external thread structure, and the inner wall of the end of the sleeve section 353 may be provided with an internal thread structure, so that the fixed end can be inserted into the opening at one end of the sleeve section 353 through threaded connection to realize the assembly of the balance bracket 35. The installation method of threaded connection can realize more convenient disassembly and assembly of the sleeve section 353 and the fixed section 351, further improving the assembly convenience of the balance component 30.

[0052] See Figure 1 and Figure 3 In one embodiment of this application, the rotating mechanism 100 includes at least two balancing components 30, which are spaced apart and sleeved on the rotating shaft 11.

[0053] In this embodiment, by spaced at least two balancing components 30 on the rotating shaft 11, and as the counterweights 31 of the at least two balancing components 30 rotate to gradually approach the rotational speed of the rotating shaft 11, the self-centering phenomenon of the rotating shaft causes the counterweights 31 of the at least two balancing components 30 to rotate to a position relative to the center of mass of the rotor. This allows the at least two counterweights 31 to be set at a certain angle. The centrifugal force experienced by the at least two counterweights 31 is used to balance the displacement of the center of mass of the rotor from multiple angles, which is beneficial to achieving a more stable rotor dynamic balance adjustment effect. This effectively enhances the range of adaptive dynamic balance adjustment of the rotating mechanism 100, allowing the rotating mechanism 100 to be applied to various devices, and further improving the practicality and structural reliability of the rotating mechanism 100.

[0054] This application also proposes a blower device, which includes a fan blade and a rotating mechanism 100. The specific structure of the rotating mechanism 100 is as described in the above embodiments. Since this blower device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0055] In one embodiment, the blower further includes a drive source bracket and at least one elastic connector. The drive source 10 has two opposite sides in the axial direction of a rotation shaft 11, with the rotation shaft 11 disposed on one side. The drive source bracket is disposed on the other side of the drive source 10. The at least one elastic connector is connected between the drive source 10 and the drive source bracket and is capable of elastic deformation in the axial direction of the rotation shaft 11.

[0056] In this embodiment, compared to a rigid connection between the drive source bracket and the drive source 10, the use of an elastic connector capable of axial deformation effectively reduces the first-order natural frequency of the entire rotating mechanism 100. This allows the first-order critical speed of the rotating mechanism 100 to be adjusted to a lower level that is more easily achievable within the actual operating speed range. This enables the rotating mechanism 100 to quickly enter and stably operate at a supercritical speed after normal startup, providing better operating conditions for the balancing component 30 to achieve adaptive balance compensation based on the automatic centering principle.

[0057] In one embodiment of this application, the fan blade includes a fan blade seat and a plurality of blades, the plurality of blades being spaced apart and arranged around the periphery of the fan blade seat, and the blades being rotatable relative to the fan blade seat.

[0058] In this embodiment, the blower has blades rotatably connected and mounted on the periphery of the blade holder. By rotating the blades to a certain angle on the blade holder, the pitch between two adjacent blades can be changed, thereby adjusting the blowing angle and blowing range of the blower and achieving a better blowing effect.

[0059] Because the fan blades employ a rotatable and adjustable angle design, rotation of the blades may alter the center of mass, potentially affecting the dynamic balance of the blades and generating vibration and noise after adjusting the blade pitch. Therefore, by installing a balancing component 30 on the rotating shaft 11 of the rotating mechanism 100, with the fan blade seat connected to the rotating shaft 11 and spaced apart from the balancing component 30, the rotation of the rotating shaft 11 drives the balancing component 30 to rotate. When the rotor system reaches its critical speed, the self-centering effect of the rotating shaft 11 allows the counterweight 31 to rotate stably to the position opposite to the fan blade imbalance. Furthermore, the counterweight 31 can adjust its position accordingly with changes in the fan blade's center of mass, enabling the balancing component 30 to more stably balance the fan blade's eccentricity. This allows the rotating mechanism 100 to drive the fan blades to rotate steadily towards the center of rotation, achieving better adaptive dynamic balance adjustment of the blower, effectively reducing vibration and noise during operation, and further improving the practicality and structural reliability of the blower.

[0060] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A rotating mechanism, characterized in that, include: The drive source is provided with a rotating shaft; and A balancing assembly is sleeved on the rotating shaft. The balancing assembly is provided with a counterweight that can rotate relative to the rotating shaft. The driving source drives the rotating shaft to rotate, so that the rotating shaft drives the balancing assembly to rotate.

2. The rotating mechanism as described in claim 1, characterized in that, The counterweight is movable in a radial direction away from the axis of rotation.

3. The rotating mechanism as described in claim 2, characterized in that, The balancing assembly includes a connector, which includes an inner ring and an outer ring that can rotate relative to each other. The inner ring is sleeved on the rotating shaft, and the counterweight is disposed on the outer ring.

4. The rotating mechanism as described in claim 3, characterized in that, The counterweight is retractably connected to the outer ring.

5. The rotating mechanism as described in claim 3, characterized in that, The balancing assembly further includes a balancing bracket connected to the outer ring of the connector. The balancing bracket has a receiving cavity inside, and the counterweight is disposed in the receiving cavity. The balancing assembly also includes a return member connected to the counterweight to drive the counterweight to move toward the rotation axis.

6. The rotating mechanism as described in claim 5, characterized in that, The inner wall of the receiving cavity is provided with a support column, and the end of the return member facing away from the counterweight is sleeved on the support column, with the support column and the counterweight being spaced apart.

7. The rotating mechanism as described in claim 5, characterized in that, The balance bracket includes a fixed section and a sleeve section. The fixed section is located on the outer ring of the connector. One end of the sleeve section is inserted into the fixed section, and the receiving cavity is formed inside the sleeve section.

8. The rotating mechanism as described in claim 7, characterized in that, The fixed section is threadedly connected to one end of the sleeve section.

9. The rotating mechanism as described in any one of claims 1 to 8, characterized in that, The rotating mechanism includes at least two balancing components, which are spaced apart and sleeved on the rotating shaft.

10. A blower device, characterized in that, The blower includes a fan blade and a rotating mechanism, wherein the rotating mechanism is any one of claims 1 to 9, the fan blade is connected to the rotating mechanism, and the rotating mechanism drives the fan blade to rotate.

11. The blower device as described in claim 10, characterized in that, The rotating mechanism includes a drive source, and the blower also includes a drive source bracket, with at least one elastic connector between the drive source and the drive source bracket.

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