Fluid energy conversion device and construction machine

Abstract

This application relates to the field of energy conversion equipment technology, and discloses a fluid energy conversion device and engineering machinery, comprising a rotating body, at least one first blade component, and at least one first limiting part. The rotating body is used to output rotational mechanical energy. The first blade component has a first surface and a first axis, the first blade component rotates around the first axis and is connected to the rotating body, and the first axis is set at an angle to the axial direction of the rotating body. The first limiting part can limit the first blade component, so that the first surface is in the flow-facing state. This can improve the fluid energy conversion efficiency and further improve the utilization rate of fluid energy.

Description

Technical Field

[0001] This application relates to the field of energy conversion equipment technology, specifically to fluid energy conversion devices and engineering machinery. Background Technology

[0002] In related technologies, fluid energy converts mechanical energy into electrical energy through kinetic energy conversion devices. For example, wind energy uses wind turbines to capture airflow to drive blades to rotate and generate electricity. Water flow energy (such as hydropower and tidal energy) converts the kinetic energy of water flow into mechanical energy through water turbines, which then drive generators to generate electricity. Both technologies rely on fluid motion to drive rotors, and the core lies in energy transfer efficiency and equipment design optimization.

[0003] However, the components used for fluid energy conversion have low conversion efficiency, making it impossible to further improve the utilization rate of fluid energy. Utility Model Content

[0004] This application provides a fluid energy conversion device and engineering machinery, which can improve the fluid energy conversion efficiency and further improve the utilization rate of fluid energy.

[0005] On the one hand, this application provides a fluid energy conversion device, including a rotating body, at least one first blade component and at least one first limiting part, the specific scheme of which is as follows.

[0006] The rotating body is used to output rotational mechanical energy; the first blade component has a first surface and a first axis, the first blade component rotates around the first axis and is connected to the rotating body, the first axis is set at an angle to the axial direction of the rotating body; the first limiting part can limit the first blade component so that the first surface is in the upstream state.

[0007] Beneficial effects: By rotatably arranging at least one first blade component around a first axis on a rotating body, and by limiting the first blade component to keep it in the flow-facing state, a driving force is provided for the rotating body. When the first blade component is in the non-flow-facing state, the fluid acts on the surface of the first blade component opposite to the first surface. At this time, the first limiting part does not limit the first blade component, allowing the first blade component to rotate under the force of the fluid, thereby reducing the force of the fluid on the first blade component and reducing the resistance of the first blade component to the rotating body. This improves the conversion efficiency of fluid energy and further enhances the utilization rate of fluid energy.

[0008] In one alternative embodiment, the first blade component is provided with an offset rotating shaft portion at a first end along the first axis, the rotating shaft portion rotating about the first axis and connected to the rotating body, and the first limiting portion being used to limit a portion at the first end that is away from the rotating shaft portion.

[0009] In one alternative embodiment, at least one second limiting portion is further included, and the first blade component rotates between the first limiting portion and the second limiting portion.

[0010] In an optional embodiment, the system further includes a linkage, wherein the number of the first blade components is at least two, the linkage is rotatably connected to the rotating body about the first axis, the first blade components are provided at both ends of the linkage along the first axis, the two first blade components on the linkage are centrally symmetrically arranged, and the center of symmetry of the two first blade components is located on the rotation axis of the linkage, and the first limiting part and the second limiting part are located on the linkage.

[0011] In one optional embodiment, a first buffer is provided on the first limiting part, and a second buffer is provided on the second limiting part.

[0012] In one optional embodiment, a third buffer is provided on the part of the rotating body that contacts the first buffer, and a fourth buffer is provided on the part of the rotating body that contacts the second buffer. The first buffer, the second buffer, the third buffer, and the fourth buffer are all embedded with magnetic elements.

[0013] The first buffer and the third buffer are arranged in a mutually exclusive manner, and the second buffer and the fourth buffer are arranged in a mutually exclusive manner.

[0014] In an alternative implementation, a synchronizer is further included, the synchronizer comprising:

[0015] A first shaft is rotatably mounted on the rotating body, and the first shaft is provided with a first meshing tooth and a first limiting part;

[0016] The second shaft is rotatably mounted on the rotating body, and the second shaft is provided with a second meshing tooth and a second limiting part;

[0017] An intermediate wheel is rotatably mounted on the rotating body and meshes with both the first meshing tooth and the second meshing tooth;

[0018] The first blade component is connected to at least one of the first shaft and the second shaft.

[0019] In an optional embodiment, a third limiting part is further included. The first blade component includes a first blade body, a first connecting shaft, and a second connecting shaft. The first blade component has a second axis. The first connecting shaft is rotatably connected to the first blade body. The first connecting shaft and the second connecting shaft are rotatably connected around the second axis. The second connecting shaft is fixedly connected to the rotating body. The third limiting part can restrict the first connecting shaft from rotating synchronously with the linkage. The second axis is perpendicular to the first axis.

[0020] Alternatively, it may include a third limiting part, wherein a third connecting shaft is rotatably provided on the rotating body along the second axis, the rotating shaft part is rotatably connected to the third connecting shaft, and the third limiting part can limit the axis of the rotating shaft part from being perpendicular to the axis of the rotating body, wherein the second axis is perpendicular to the axis of the rotating body.

[0021] In one optional embodiment, the rotating body has a receiving shell, the receiving shell is provided with at least one receiving cavity, the receiving cavity is provided with an opening and a limiting ring, the limiting ring is rotatable around the rotating body, the limiting ring is provided with a notch and a limiting groove, the notch is connected to the opening and the limiting groove;

[0022] In the folded state, the first blade component is located inside the accommodating cavity; in the unfolded state, at least a portion of the first blade component is located outside the accommodating cavity; in the first position, the limiting ring can limit the rotation of the first blade component around the second axis; in the second position, the limiting groove allows the first blade component to switch between the unfolded and folded states through the notch.

[0023] In one alternative embodiment, a storage housing is further included, which is coaxially sleeved on the rotating body, and the receiving shell is slidable along the axial direction of the rotating body and is located inside the storage housing.

[0024] In an optional embodiment, a filter cover is further included. There are multiple first blade components located inside the filter cover. The multiple first blade components are arranged in two first blade groups. Each first blade group includes multiple first blade components. The multiple first blade components in each first blade group are arranged at intervals along the circumference of the rotating body. The two first blade groups are arranged at intervals along the axial direction of the rotating body.

[0025] The first blade component includes a first part and a second part located on both sides of the first axis, wherein the area of ​​the first part is larger than the area of ​​the second part.

[0026] In any one of the first blade groups, a counterweight is provided on the second part of the first blade component, so that the second parts of the first blade components in the two first blade groups are arranged close to each other.

[0027] In one optional embodiment, the rotating body is provided with at least one rotating rod, the rotating rod is arranged parallel to the rotating body at a distance, at least one second blade component is rotatably disposed on the rotating rod, the second blade component has a third surface, and at least one fourth limiting part is provided on the rotating rod;

[0028] The fourth limiting part can limit the second blade component, so that the third surface is in the face of the flow.

[0029] And / or, multiple rotating bodies are provided, and the multiple rotating bodies are spaced apart along the axial direction of the rotating bodies, and the rotation directions of any two adjacent rotating bodies are opposite.

[0030] On the other hand, this application also provides an engineering machine, including: the fluid energy conversion device in any of the above embodiments. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this application, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of a fluid energy conversion device according to an embodiment of this application;

[0033] Figure 2 This is a schematic diagram of a fluid energy conversion device according to an embodiment of this application from another perspective;

[0034] Figure 3 This is a schematic diagram of another fluid energy conversion device according to an embodiment of this application;

[0035] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;

[0036] Figure 5 This is a schematic diagram of another fluid energy conversion device according to an embodiment of this application;

[0037] Figure 6 This is a schematic diagram of another fluid energy conversion device according to an embodiment of this application;

[0038] Figure 7 This is a schematic diagram of another fluid energy conversion device according to an embodiment of this application;

[0039] Figure 8 for Figure 7 A magnified view of a portion of point B in the middle;

[0040] Figure 9 This is a schematic diagram of the structure of the first buffer, the second buffer, the third buffer, and the fourth buffer in another fluid energy conversion device according to an embodiment of this application;

[0041] Figure 10 This is a schematic diagram of another fluid energy conversion device according to an embodiment of this application;

[0042] Figure 11 for Figure 10 A magnified view of a portion of point C in the middle;

[0043] Figure 12 for Figure 10 A schematic diagram of the fluid energy conversion device in its folded state;

[0044] Figure 13 for Figure 12 A magnified view of a portion of point D in the middle;

[0045] Figure 14 This is a schematic diagram of another fluid energy conversion device according to an embodiment of this application;

[0046] Figure 15 for Figure 14 A schematic diagram of the fluid energy conversion device in its folded state;

[0047] Figure 16 for Figure 14 A schematic diagram of the medium fluid energy conversion device with the housing shell removed in a folded state;

[0048] Figure 17 for Figure 14 A schematic diagram of the medium fluid energy conversion device in its deployed state after removing the housing shell;

[0049] Figure 18 for Figure 15 A schematic diagram of the structure of two synchronizers in a medium-fluid energy conversion device;

[0050] Figure 19 for Figure 14 A schematic diagram of the structure of a synchronizer;

[0051] Figure 20 for Figure 14 A schematic diagram of the structure of another synchronizer;

[0052] Figure 21This is a schematic diagram of another fluid energy conversion device according to an embodiment of this application;

[0053] Figure 22 for Figure 21 A schematic diagram of the fluid energy conversion device from another perspective;

[0054] Figure 23 for Figure 22 A magnified view of a portion of point E in the middle;

[0055] Figure 24 for Figure 21 A schematic diagram of the folded state of the fluid energy conversion device;

[0056] Figure 25 for Figure 24 A magnified view of a portion of point F in the middle;

[0057] Figure 26 This is a schematic diagram of another fluid energy conversion device according to an embodiment of this application;

[0058] Figure 27 for Figure 26 A schematic diagram of the fluid energy conversion device in its folded state;

[0059] Figure 28 This is a schematic diagram of another fluid energy conversion device according to an embodiment of this application;

[0060] Figure 29 for Figure 28 A schematic diagram of another state of the fluid energy conversion device;

[0061] Figure 30 This is a schematic diagram of another fluid energy conversion device according to an embodiment of this application;

[0062] Figure 31 for Figure 30 A schematic diagram of the structure of the fluid energy conversion device for removing the filter cover;

[0063] Figure 32 This is a schematic diagram of another fluid energy conversion device according to an embodiment of this application.

[0064] Explanation of reference numerals in the attached figures:

[0065] 1. Rotating body; 2. First blade component; 3. First limiting part; 4. Second limiting part; 5. Linkage device; 6. Synchronizer; 7. Third limiting part; 8. Receiving shell; 9. Storage shell; 91. Rotary bearing; 10. Filter cover; 11. Third buffer; 12. Fourth buffer; 13. Third connecting shaft; 14. First part; 15. Second part; 16. Counterweight; 17. Rotating rod; 18. Second blade component; 19. Fourth limiting part; 20. Detection module; 21. First surface; 22. Rotating shaft; 23. 1. First blade body; 231. Stop bar; 232. Hand stop; 24. First connecting shaft; 25. Second connecting shaft; 31. First buffer component; 41. Second buffer component; 51. Guide roller; 61. First shaft body; 611. First meshing tooth; 62. Second shaft body; 621. Second meshing tooth; 63. Intermediate wheel; 81. Accommodating cavity; 82. Opening; 821. Second arc-shaped part; 83. Limiting ring; 831. Limiting groove; 832. Notch; 84. Cover plate; 841. First arc-shaped part; 101. Reset buffer component. Detailed Implementation

[0066] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0067] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two elements. The terms "parallel," "perpendicular," and "equal" include the described situation and situations similar to the described situation, the range of which is within an acceptable deviation range, wherein the acceptable deviation range is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, where an acceptable deviation range for approximate parallelism can be, for example, within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, where an acceptable deviation range for approximate perpendicularity can also be, for example, within 5°. "Equal" includes absolute equality and approximate equality, where an acceptable deviation range for approximate equality can be, for example, a difference between the two equal items being less than or equal to 5% of either one. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0068] In related technologies, fluid energy converts mechanical energy into electrical energy through kinetic energy conversion devices. For example, wind energy uses wind turbines to capture airflow to drive blades to rotate and generate electricity. Water flow energy (such as hydropower and tidal energy) converts the kinetic energy of water flow into mechanical energy through water turbines, which then drive generators to generate electricity. Both technologies rely on fluid motion to drive rotors, and the core lies in energy transfer efficiency and equipment design optimization.

[0069] However, the components used for fluid energy conversion have low conversion efficiency, making it impossible to further improve the utilization rate of fluid energy.

[0070] To address the aforementioned technical problems, this application provides a fluid energy conversion device and engineering machinery, which can improve fluid energy conversion efficiency and further enhance the utilization rate of fluid energy.

[0071] The following is combined Figures 1 to 32 This describes an embodiment of the present application.

[0072] According to embodiments of this application, in one aspect, a fluid energy conversion device is provided, such as... Figures 1 to 5 As shown, it includes a rotating body 1, at least one first blade component 2 and at least one first limiting part 3, and the specific scheme is as follows.

[0073] It should be noted that the fluid energy conversion device provided in this application can be a device that uses the fluid energy of water for energy conversion, a device that uses the fluid energy of wind for energy conversion, or any other energy conversion device that uses fluid energy. Figures 1 to 3 The direction of the middle arrow indicates the direction of fluid energy flow.

[0074] like Figures 1 to 5 As shown, the rotating body 1 is used to output rotational mechanical energy. Specifically, the rotating body 1 can be a solid shaft, such as a metal shaft, or a hollow tube, such as a steel pipe or a plastic pipe; it can also be other objects that can rotate, and the shape is not necessarily regular, such as a column with a square or polygonal cross-section. When the rotating body 1 is a hollow tube, it can be fitted onto other shafts to rotate.

[0075] like Figure 1 and Figure 5 As shown, the number of first blade components 2 can be one or more. The first blade component 2 can be any one of metal blades, plastic blades, or composite material blades (such as blades with an internal metal skeleton and an external lightweight and high-strength material, such as carbon fiber composites, especially the edge parts of the blade that cooperate with other components using metal components to enhance strength). The first blade component 2 has a first surface 21 and a first axis. The first blade component 2 rotates around the first axis and is connected to the rotating body 1. The first axis and the axis of the rotating body 1 are set at an angle. Specifically, the first axis and the axis of the rotating body 1 can be located in the same plane, or the first axis and the axis of the rotating body 1 can be located in two different planes, and the two different planes are parallel or intersecting. In detail, the angle between the first axis and the axis of the rotating body 1 can be any angle from 30° to 90°, preferably 90°.

[0076] Specifically, the first blade component 2 can be rotatably connected to the rotating body 1, or it can be rotatably connected to the intermediate component, which is then connected to the rotating body 1. Alternatively, the first blade component 2 can be fixedly connected to the intermediate component, and the intermediate component can be rotatably connected to the rotating body 1 around the first axis.

[0077] More specifically, such as Figures 1 to 3 As shown, the first blade component 2 is plate-shaped; as Figure 3 and Figure 5As shown, the first blade component 2 is arc-shaped, the first surface 21 is concave, and the surface opposite to the first surface 21 is convex. Specifically, the first surface 21 is slightly concave, and the surface opposite to the first surface 21 is slightly convex.

[0078] like Figures 1 to 5 As shown, the number of first limiting parts 3 matches the number of first blade components 2. Specifically, the first limiting parts 3 can be any object that can limit the first blade component 2, such as a block or plate. The first limiting parts 3 can be set on the rotating body 1, or on other parts or components fixed on the rotating body 1, as long as they can limit the first blade component 2.

[0079] Specifically, such as Figures 1 to 5 As shown, the first limiting part 3 is a block fixed on the rotating body 1.

[0080] The first limiting part 3 can limit the first blade component 2, so that the first surface 21 is in the flow-facing state.

[0081] It should be noted that the center of gravity of the first blade component 2 does not coincide with the axis of rotation of the first blade component 2, or the areas of the portions of the first blade component 2 located on both sides of the first axis are different; each first blade component 2 has its own first axis.

[0082] Operating principle of fluid energy conversion device: such as Figure 1 As shown, the first limiting part 3 can limit the first blade component 2 to be in the face of the first surface 21 in the opposite direction of the flow. By using the force of the fluid on the first surface 21, the first blade component 2 is pushed to rotate around the axis of the rotating body 1, thereby driving the rotating body 1 to rotate and output rotational mechanical energy.

[0083] When the rotation axis (i.e., the first axis) of the first blade component 2 overlaps with the flow direction of the fluid and continues to rotate, the second surface of the first blade component 2 opposite to the first surface 21 is in the flow-facing state. Under the action of the fluid, the first blade component 2 rotates, reducing the effective contact area between the second surface and the fluid, thereby reducing the force of the fluid on the first blade component 2 and thus reducing the resistance to the rotating body 1.

[0084] When the rotation axis (i.e., the first axis) of the first blade component 2 overlaps with the flow direction of the fluid again and continues to rotate, the first blade component 2 rotates by its own weight and / or the driving force of the fluid acting on the first surface 21, and rotates to the position where the first limiting part 3 limits it, thus being in the flow-facing state, and starting the next cycle.

[0085] In this embodiment, at least one first blade component 2 is rotatably arranged on the rotating body 1 around a first axis, and the first limiting part 3 can limit the first blade component 2 to keep it in the flow-facing state, thereby providing driving force for the rotating body 1. When the first blade component 2 is in the non-flow-facing state, the fluid acts on the surface of the first blade component 2 opposite to the first surface 21. At this time, the first limiting part 3 does not limit the first blade component 2, so that the first blade component 2 rotates under the action of the fluid, thereby reducing the force of the fluid on the first blade component 2, thereby reducing the resistance of the first blade component 2 to the rotating body 1, thereby improving the conversion efficiency of fluid energy and further improving the utilization rate of fluid energy.

[0086] In a specific embodiment, such as Figure 14 As shown, the first blade component 2 has an offset rotating shaft portion 22 disposed at its first end along the first axis. The rotating shaft portion 22 rotates about the first axis and is connected to the rotating body 1, as shown. Figure 21 As shown, the first limiting part 3 is used to limit the part on the first end that is away from the rotating shaft part 22. In this state, the force exerted by the first limiting part 3 on the first blade component 2 is minimal.

[0087] It should be noted that the above-mentioned "offset" refers to the fact that the central axis of the rotating shaft 22 does not coincide with the center of gravity of the first blade.

[0088] In this embodiment, such as Figure 14 and Figure 21 As shown, the offset rotating shaft 22 rotates around the first axis and is connected to the rotating body 1, which facilitates the rapid switching of the first blade component 2 between the oncoming and non-oncoming states, improves the switching speed, and reduces the force on the first limiting part 3.

[0089] In one embodiment, such as Figures 1 to 5 As shown, the fluid energy conversion device also includes at least one second limiting part 4, and the first blade component 2 rotates between the first limiting part 3 and the second limiting part 4; the number of second limiting parts 4 matches the number of first blade components 2. Specifically, the second limiting part 4 can be any object that can limit the first blade component 2, such as a block or plate. The second limiting part 4 can be set on the rotating body 1 or on other parts, as long as it can limit the first blade component 2.

[0090] Specifically, such as Figures 1 to 3 As shown, the second limiting part 4 is a block fixed on the rotating body 1; as Figure 4 and Figure 5 As shown, the second limiting part 4 is a plate-shaped block disposed on the rotating body 1.

[0091] It should be noted that the first limiting part 3 can restrict the first blade component 2 to have an angle between the first surface 21 and the flow direction of the fluid between 60° and 110°. Preferably, the angle between the first surface 21 and the flow direction of the fluid is 90°. At this time, the effective flow-facing area of ​​the first blade component 2 is the largest, and the force exerted by the fluid on the first blade component 2 is the largest. The second limiting part 4 can restrict the first blade component 2 to have an angle between the first surface 21 and the flow direction of the fluid between -30° and 30°. Preferably, the angle between the first surface 21 and the flow direction of the fluid is 0°. At this time, the effective flow-facing area of ​​the first blade component 2 is the smallest, and the force exerted by the fluid on the first blade component 2 is the smallest, that is, the resistance to the rotating body 1 is the smallest.

[0092] In specific usage, such as Figures 1 to 5 As shown, when the rotation axis (i.e., the first axis) of the first blade component 2 overlaps with the flow direction of the fluid and continues to rotate, the second surface of the first blade component 2 opposite to the first surface 21 is in the flow-facing state. Under the action of the fluid, the first blade component 2 rotates and rotates to the position where the second limiting part 4 limits it, so as to reduce the effective contact area between the second surface and the fluid, thereby reducing the force of the fluid on the first blade component 2 and thus reducing the resistance to the rotating body 1.

[0093] In this embodiment, by providing the second limiting part 4, the first blade component 2 can rotate between the first limiting part 3 and the second limiting part 4. The second limiting part 4 can prevent the first blade component 2 from oscillating back and forth when the effective flow area with the fluid is at its minimum, thereby reducing the force on the first blade component 2 and improving the energy conversion efficiency.

[0094] In one embodiment, such as Figures 6 to 8 As shown, the fluid energy conversion device also includes a linkage 5, and the number of first blade components 2 is at least two. The linkage 5 is rotatably connected to the rotating body 1 around the first axis. The linkage 5 is connected to both ends along the first axis, and the first blade components 2 are provided at both ends. The two first blade components 2 on the linkage 5 are centrally symmetrically arranged, and the center of symmetry of the two first blade components 2 is located on the rotation axis of the linkage 5. The first limiting part 3 and the second limiting part 4 are located on the linkage 5.

[0095] Specifically, such as Figure 6 As shown, the linkage 5 is a metal frame that connects the two first connecting parts, or it can be other types of connectors; Figure 7 The design in the middle is that four linkages 5 are arranged sequentially along the axis of the rotating body 1. In this figure, the rotating body 1 is a sleeve shaft, and two linkages 5 are set on each sleeve shaft. The two sleeve shafts rotate in opposite directions to reduce torque damage to the central stationary shaft and improve its service life.

[0096] In a specific structure, such as Figure 5 The two first blade components 2 are connected by a central rotating shaft (not shown in the figure) to form a whole. The central rotating shaft rotates through the rotating body 1, and the axis of the central rotating shaft coincides with the first axis. The two first blade components 2 rotate together in all the above stages, which is called linkage. This structure still conforms to its operating law, thereby simplifying the structure, enhancing stability, and improving conversion efficiency.

[0097] Specifically, such as Figure 8 As shown, the rotating body 1 is also provided with a reset buffer component 101, which has the tendency to reset the linkage 5 to the position where the first blade component 2 is in the upstream state. Specifically, the reset buffer component 101 is a torsion spring, or it can be other types of buffer components.

[0098] In this embodiment, during the rotation of the rotating body 1, the two first blade components 2 are synchronously aligned with the flow direction of the fluid. Then, when it rotates, the linkage 5 enables the two first blade components 2 to rotate synchronously, preventing either first blade component 2 from failing to rotate due to insufficient driving force, thereby improving the stability, reliability and continuity of the equipment operation.

[0099] In one embodiment, such as Figure 8 and Figure 9 As shown, a first buffer 31 is provided on the first limiting part 3, and a second buffer 41 is provided on the second limiting part 4. Specifically, the first buffer 31 and the second buffer 41 are elastic rubber or other blocks with elastic deformation capabilities.

[0100] In this embodiment, such as Figure 8 As shown, by setting a first buffer block on the first limiting part 3 and a second buffer block on the second limiting part 4, damage to the first limiting part 3 and the second limiting part 4 can be avoided when limiting the first blade component 2, and vibration damage to the rotating body 1 can be avoided, which would affect the rotational balance of the rotating body 1 and reduce the energy conversion efficiency.

[0101] In one embodiment, such as Figure 8 and Figure 9 As shown, a third buffer 11 is provided on the part of the rotating body 1 that contacts the first buffer 31 by means of pasting, welding or other methods. A fourth buffer 12 is provided on the part of the rotating body 1 that contacts the second buffer 41 by means of pasting, welding or other methods. Magnetic elements are embedded in the first buffer 31, the second buffer 41, the third buffer 11 and the fourth buffer 12. The first buffer 31 and the third buffer 11 are arranged in a repulsive manner, and the second buffer 41 and the fourth buffer 12 are arranged in a repulsive manner.

[0102] Specifically, the magnetic component can be a permanent magnet or an electromagnet, preferably an electromagnet. The magnitude of the magnetic force can be adjusted via an intelligent system based on the direction and speed of rotation of the rotating body 1, as well as the fluid direction, fluid energy intensity, and velocity, resulting in better vibration damping. Figure 9 As shown, magnetic elements are embedded on the two opposite surfaces of the first buffer 31 and the third buffer 11, and magnetic elements are embedded on the two opposite surfaces of the second buffer 41 and the fourth buffer 12.

[0103] The contact surfaces of the two interacting magnetic components can even be brought close together and firmly attached. The contact surfaces will not produce a violent impact and will instantly change to a positive and negative pole attraction setting until the first axis of the two first blade components 2 is parallel to the direction of fluid energy and is about to enter the next stage. Then, they will immediately change back to a like pole repulsion setting and be bounced away by the fluid action, which will further improve efficiency and enhance stability.

[0104] In this embodiment, such as Figure 9 As shown, by setting the first buffer 31, the second buffer 41, the third buffer 11 and the fourth buffer 12 to be magnetic components; the first buffer 31 and the third buffer 11 are set to repel each other, and the second buffer 41 and the fourth buffer 12 are set to repel each other, which can achieve better shock absorption, with a simple structure and good effect.

[0105] In one embodiment, such as Figures 14 to 20 As shown, the fluid energy conversion device also includes a synchronizer 6, such as Figures 18 to 20 As shown, the synchronizer 6 includes a first shaft 61, a second shaft 62 and an intermediate wheel 63. The first shaft 61 is rotatably mounted on the rotating body 1 by means of bearings or bushings. The first shaft 61 is provided with a first meshing tooth 611 and a first limiting part 3. Specifically, the first meshing tooth 611 can be an incomplete gear (i.e., only a part of the meshing teeth).

[0106] like Figures 18 to 20 As shown, the second shaft 62 is rotatably mounted on the rotating body 1 by means of bearings or bushings. The second shaft 62 is provided with a second meshing tooth 621 and a second limiting part 4. Specifically, the second meshing tooth 621 can be an incomplete gear.

[0107] like Figures 18 to 20 As shown, the intermediate wheel 63 is rotatably mounted on the rotating body 1 via a bearing or bushing, and meshes with both the first meshing tooth 611 and the second meshing tooth 621. Specifically, there can be multiple intermediate wheels 63. Correspondingly, there are multiple first meshing teeth 611 on the first shaft 61, each corresponding to one of the intermediate wheels 63, and multiple second meshing teeth 621 on the second shaft 62, each corresponding to one of the intermediate wheels 63. More specifically, there are two first meshing teeth 611, two second meshing teeth 621, and two intermediate wheels 63.

[0108] like Figures 18 to 20 As shown, at least one of the first shaft 61 and the second shaft 62 is connected to the first blade component 2; specifically, the first blade component 2 is connected to either the first shaft 61 or the second shaft 62, or both the first shaft 61 and the second shaft 62 are connected to the first blade component 2 to achieve synchronous rotation.

[0109] In practical use, when the rotating body 1 is rotating, the two first blade components 2 are synchronously aligned with the flow direction of the fluid and then rotate on their own. The intermediate wheel 63 in the synchronizer 6 causes the first shaft 61 and the second shaft 62 to rotate synchronously in the same direction, which enables the two first blade components 2 to rotate synchronously in the same direction.

[0110] like Figure 18 As shown, the intermediate wheel 63 can retract inward and disengage from the first meshing tooth 611 and the second meshing tooth 621, so that the blades on the first shaft 61 and the second shaft 62 can have an angle that folds simultaneously.

[0111] In this embodiment, such as Figures 18 to 20 As shown, by setting a synchronizer 6, the two first blade components 2 are connected to achieve synchronous rotation in the same direction, which avoids the failure of either first blade component 2 to rotate due to insufficient driving force, thereby improving the stability and reliability of the equipment operation.

[0112] In some embodiments not shown, the first shaft 61 and the second shaft 62 can be driven by components such as chains or belts and other various means to achieve synchronization.

[0113] In one embodiment, such as Figures 10 to 11 As shown, the fluid energy conversion device also includes a third limiting part 7, such as Figure 11 As shown, the first blade component 2 includes a first blade body 23, a first connecting shaft 24, and a second connecting shaft 25. The first blade component 2 has a second axis, that is, each first blade component 2 has its own first axis. The first connecting shaft 24 is rotatably connected to the first blade body 23. The first connecting shaft 24 and the second connecting shaft 25 are rotatably connected around the second axis through a rotating shaft. The second connecting shaft 25 is fixedly connected to the rotating body 1 by welding. The third limiting part 7 can limit the first connecting shaft 24 and the linkage 5 to rotate synchronously. The second axis is perpendicular to the first axis.

[0114] Specifically, such as Figure 11As shown, a stop bar 231 (or other structure) is provided on the first blade body 23, which engages with the rotatable third limiting part 7 on the linkage 5. The third limiting part 7 is specifically a U-shaped block, or other limiting structure rotatably connected to the linkage 5. The first blade body 23 is in the unfolded state as shown. Figure 11 As shown, the first blade body 23 is folded as follows: Figure 12 and Figure 13 As shown, where Figure 13 As can be seen, when the first blade body 23 is in the folded state, the baffle 231 is separated from the third limiting part 7.

[0115] In specific usage, such as Figure 10 and Figure 11 As shown, when energy conversion using fluid energy is required, the first blade body 23 is rotated around the second axis to the deployed state, and the third limiting part 7 (U-shaped block) is operated to limit the baffle 231 of the first blade body 23, so that the first blade component 2 remains stable in the deployed state, and then energy conversion is performed; as Figure 12 and Figure 13 As shown, when energy conversion is no longer required, the third limiting part 7 is operated to release the limiting of the upper baffle 231 of the first blade body 23, so that the first blade body 23 can be folded, thereby facilitating the storage and transportation of the fluid energy conversion device.

[0116] In one embodiment, such as Figures 14 to 17 As shown, the rotating body 1 has a housing 8, which can be a plastic shell, a metal shell, or a shell made of other materials, such as... Figure 14 and Figure 15 As shown, the housing 8 is provided with at least one receiving cavity 81, and the receiving cavity 81 is also provided with a cover plate 84. The cover plate 84 is connected to the opening 82 of the receiving cavity 81 by means of hinge or snap-fit.

[0117] like Figure 14 and Figure 15 As shown, a first arcuate portion 841 is provided on the edge of the cover plate 84, and a second arcuate portion 821 is provided on the edge of the opening 82 of the accommodating cavity 81. The first arcuate portion 841 and the second arcuate portion 821 are correspondingly arranged to limit the first connecting shaft 24. Specifically, rolling bearings or the like are provided at the parts of the first connecting shaft 24 that mate with the first arcuate portion 841 and the second arcuate portion 821 to reduce wear.

[0118] Among them, such as Figure 15 As shown, the first blade component 2 is located within the accommodating cavity 81 in the folded state; as Figure 14 As shown, when the first blade component 2 is in the unfolded state, the first arc-shaped part 841 and the second arc-shaped part 821 limit the first connecting shaft 24 to prevent it from rotating around the second axis.

[0119] In one embodiment, the fluid energy conversion device further includes a third limiting part 7 (not shown in the figure; specifically, the third limiting part 7 may be a limiting groove 831), such as... Figures 21 to 25 As shown, a third connecting shaft 13 is rotatably provided on the rotating body 1 along the second axis through the cooperation of bearings or bushings. The rotating shaft part 22 is rotatably connected to the third connecting shaft 13. The third limiting part 7 can restrict the axis of the rotating shaft part 22 to be perpendicular to the axis of the rotating body 1. That is, the third limiting part 7 can make the first blade part 2 in an unfolded state and keep it stable. The second axis is perpendicular to the axis of the rotating body 1.

[0120] Specifically, such as Figure 21 As shown, the rotating body 1 is provided with two sets of first blade components 2, which are spaced apart along the axial direction of the rotating body 1. The upper set folds downward and the lower set folds upward, and the two sets of first blade components 2 are arranged in a cross-shaped manner when folded.

[0121] It should be noted that the third limiting part 7 can be any type of component, as long as it can restrict the first connecting shaft 24 and the second connecting shaft 25 to be coaxial.

[0122] In a specific embodiment, such as Figures 21 to 25 As shown, the rotating body 1 has a housing 8, which can be a plastic shell, a metal shell, or a shell made of other materials, such as... Figure 21 As shown, the housing 8 is provided with at least one housing cavity 81 (4 in the figure), the housing cavity 81 is provided with an opening 82 and a limiting ring 83, the limiting ring 83 can rotate around the rotating body 1, the limiting ring 83 is provided with a notch 832 and a limiting groove 831, the notch 832 connects the opening 82 and the limiting groove 831, and the limiting groove 831 is the third limiting part 7 (not marked in the figure).

[0123] Among them, such as Figure 15 and Figure 27 As shown, the first blade component 2 is located within the accommodating cavity 81 in the folded state; as Figure 14 , Figure 21 and Figure 26 As shown, the first blade component 2 is in the deployed state, and at least a portion of the first blade component 2 is outside the receiving cavity 81; as Figure 21 As shown, when the limiting ring 83 is in the first position, it can limit the rotation of the first blade component 2 around the second axis; as Figure 25 As shown, when the limiting groove 831 is in the second position, the first blade component 2 switches between the unfolded state and the folded state through the notch 832.

[0124] Specifically, a cover plate 84 is provided on the accommodating cavity 81. The cover plate 84 is connected to the opening 82 of the accommodating cavity 81 by means of hinge or snap-fit. A rolling bearing is provided at the part of the first blade component 2 that contacts the limiting groove 831 to reduce wear.

[0125] More specifically, a second limiting part 4 is provided on the inner side wall of the limiting ring 83, such as... Figure 23 As shown, in the first position state, the limiting ring 83 allows the second limiting part 4 to limit the first blade component 2; specifically, the first blade component 2 is provided with a stop 232, and the stop bar contacts and limits the movement of the second limiting part 4; as shown Figure 25 As shown, in the second position, the limiting ring 83 can be offset from the first blade component 2, facilitating the folding of the first blade component 2. Figure 23 and Figure 25 In the figure, the first limiting part 3 is located in the space below the limiting ring 83 and is not visible.

[0126] In this embodiment, such as Figures 21 to 25 As shown, by coaxially sleeved with a housing shell 8 on the rotating body 1 and providing a housing cavity 81 on the housing shell 8, it is convenient to store the first blade component 2; at the same time, the limiting ring 83 is provided with a limiting groove 831 and a notch 832, which allows the rotating shaft part 22 of the first blade component 2 to enter the limiting groove 831 through the notch 832, thereby realizing the switching of the first blade component 2 from a folded state to an unfolded state.

[0127] In one embodiment, such as Figures 26 to 29 As shown, the fluid energy conversion device also includes a housing 9. Specifically, the housing 9 can be a plastic housing, a metal housing, or a housing made of other materials. The housing 9 is coaxially fixed on the rotating body 1, and the accommodating shell 8 can slide along the axial direction of the rotating body 1 and is located inside the housing 9.

[0128] Specifically, a rotating bearing 91 is embedded in the end of the housing 9. The rotating bearing 91 is rotatably connected to the housing 8 of the rotating body 1, and the housing 8 and the rotating bearing 91 are slidably connected along the axial direction of the rotating body 1.

[0129] In this embodiment, by providing a storage housing 9, the accommodating shell 8 is slidably stored inside the storage housing 9. When stored, the volume of the fluid energy conversion device can be reduced, making it easier to carry and store.

[0130] In one embodiment, such as Figure 30 As shown, the fluid energy conversion device also includes a filter cover 10, which can be a frame, mesh structure, etc., made of plastic, metal, or other materials, and its exterior can be covered with a fishing net, etc.; there are multiple first blade components 2, located inside the filter cover 10, such as... Figure 31As shown, multiple first blade components 2 are arranged in two first blade groups, and each first blade group includes multiple first blade components 2. The multiple first blade components 2 in each first blade group are arranged at intervals along the circumference of the rotating body 1. Preferably, the rotating bodies 1 of the two first blade groups are not connected, so that the two first blade groups rotate in opposite directions, that is, coaxially opposite rotation, to balance the torque.

[0131] like Figure 31 As shown, the first blade component 2 includes a first part 14 and a second part 15 located on both sides of the first axis. The area of ​​the first part 14 is larger than the area of ​​the second part 15, that is, the weight of the first part 14 is greater than the weight of the second part 15. A counterweight 16 is provided on the second part 15 of the first blade component 2 located at the upper part, so that the second part 15 on the first blade component 2 in the two first blade groups is arranged close to each other, that is, the weight of the second part 15 after adding the counterweight 16 is greater than the weight of the first part 14.

[0132] In this embodiment, by setting a counterweight 16 on the second part 15 of the first blade component 2, the weight of the second part 15 is increased, so that the second parts 15 of the first blade component 2 in the two first blade groups are set close together, thereby reducing the distance between the two first blade groups and reducing the volume of the filter cover 10. It can be applied to the upper surface of an object (such as a new energy vehicle) to obtain the conversion of fluid energy.

[0133] In one embodiment, such as Figure 32 As shown, at least one rotating rod 17 is fixedly installed on the rotating body 1 by welding, bolting, or other means. The rotating rod 17 is arranged parallel to the rotating body 1 at intervals. At least one second blade component 18 is rotatably installed on the rotating rod 17 by means of bearings or bushings. The second blade component 18 has a third surface. At least one fourth limiting part 19 is provided on the rotating rod 17. The fourth limiting part 19 can limit the second blade component 18 so that the third surface is in the flow-facing state.

[0134] Specifically, the fourth limiting part 19 can be any object, such as a block or plate, that can limit the second blade component 18.

[0135] In this embodiment, by providing the second blade component 18, the conversion of fluid energy can be further improved.

[0136] In one embodiment, such as Figure 30 and Figure 31 As shown, a detection module 20 is provided on the rotating body 1. The detection module 20 is used to detect information such as the flow velocity and direction of the fluid, and is connected to the intelligent control module of the fluid energy conversion device to control the operating parameters of the fluid energy conversion device.

[0137] In one embodiment, such as Figure 21 , Figure 26 and Figure 27 As shown, the fluid energy conversion device also includes a speed control device, a generator, a battery, a power output port, and a bracket, etc. The rotating body 1 is connected to the motor drive, and the bracket can be a folding bracket for easy storage and carrying. The rotating body 1 is rotatably connected to the bracket, and the bracket is used to fix the rotating body 1 or the housing 9.

[0138] In one embodiment, such as Figure 7 and Figure 31 As shown, multiple rotating bodies 1 are provided, and the multiple rotating bodies 1 are spaced apart along the axial direction of the rotating body 1. Any two adjacent rotating bodies 1 rotate in opposite directions, that is, they rotate coaxially to balance the torque.

[0139] According to an embodiment of this application, another aspect provides an engineering machine, including: a fluid energy conversion device and a generator assembly as described in any of the above embodiments, wherein the rotating body 1 is drive-connected to the input shaft of the generator.

[0140] Specifically, engineering machinery includes equipment with power generation capabilities, such as hydroelectric generator sets and wind turbine generator sets; there are also other applications besides power generation, such as directly driving energy storage equipment to avoid secondary conversion; and even directly driving vehicles and ships, etc.

[0141] In this embodiment, since the engineering machinery includes a fluid energy conversion device and has the same technical effect as the fluid energy conversion device, it will not be described in detail here.

[0142] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A fluid energy conversion device, characterized by, include: Rotating body (1), the rotating body (1) is used to output rotational mechanical energy; At least one first blade component (2), the first blade component (2) having a first surface (21) and a first axis, the first blade component (2) rotating about the first axis and connected to the rotating body (1), the first axis being set at an angle to the axial direction of the rotating body (1); At least one first limiting part (3) is provided, which can limit the first blade component (2) so that the first surface (21) is in the flow-facing state.

2. The fluid energy conversion device of claim 1, wherein, The first blade component (2) has an offset rotating shaft portion (22) at its first end along the first axis. The rotating shaft portion (22) rotates around the first axis and is connected to the rotating body (1). The first limiting portion (3) is used to limit the portion at the first end that is away from the rotating shaft portion (22).

3. The fluid energy conversion device of claim 2, wherein, It also includes at least one second limiting part (4), and the first blade component (2) rotates between the first limiting part (3) and the second limiting part (4).

4. The fluid energy conversion device of claim 3, wherein, It also includes a linkage (5), the number of first blade components (2) is at least two, the linkage (5) is rotatably connected to the rotating body (1) around the first axis, the linkage (5) is connected to the first blade components (2) at both ends along the first axis, the two first blade components (2) on the linkage (5) are centrally symmetrically arranged, and the center of symmetry of the two first blade components (2) is located on the rotation axis of the linkage (5), and the first limiting part (3) and the second limiting part (4) are located on the linkage (5).

5. The fluid energy conversion device of claim 4, wherein, The first limiting part (3) is provided with a first buffer (31), and the second limiting part (4) is provided with a second buffer (41).

6. The fluid energy conversion device of claim 5, wherein, A third buffer (11) is provided at the part of the rotating body (1) that contacts the first buffer (31), and a fourth buffer (12) is provided at the part of the rotating body (1) that contacts the second buffer (41). The first buffer (31), the second buffer (41), the third buffer (11) and the fourth buffer (12) are all equipped with magnetic components. The first buffer (31) is disposed in opposition to the third buffer (11), and the second buffer (41) is disposed in opposition to the fourth buffer (12).

7. The fluid energy conversion device of claim 3, wherein, It also includes a synchronizer (6), which comprises: A first shaft (61) is rotatably mounted on the rotating body (1), and a first meshing tooth (611) and a first limiting part (3) are provided on the first shaft (61); The second shaft (62) is rotatably mounted on the rotating body (1), and the second shaft (62) is provided with a second meshing tooth (621) and a second limiting part (4); The intermediate wheel (63) is rotatably mounted on the rotating body (1) and meshes with both the first meshing tooth (611) and the second meshing tooth (621); The first blade component (2) is connected to at least one of the first shaft (61) and the second shaft (62).

8. The fluid energy conversion device of any one of claims 4-6, wherein, It also includes a third limiting part (7). The first blade component (2) includes a first blade body (23), a first connecting shaft (24), and a second connecting shaft (25). The first blade component (2) has a second axis. The first connecting shaft (24) is rotatably connected to the first blade body (23). The first connecting shaft (24) and the second connecting shaft (25) are rotatably connected around the second axis. The second connecting shaft (25) is fixedly connected to the rotating body (1). The third limiting part (7) can restrict the first connecting shaft (24) from rotating synchronously with the linkage (5). The second axis is perpendicular to the first axis. Alternatively, it may include a third limiting part (7), on which a third connecting shaft (13) is rotatably provided along the second axis, the rotating shaft part (22) is rotatably connected to the third connecting shaft (13), and the third limiting part (7) can restrict the axis of the rotating shaft part (22) from being perpendicular to the axis of the rotating body (1), wherein the second axis is perpendicular to the axis of the rotating body (1).

9. The fluid energy conversion device of claim 8, wherein, The rotating body (1) has a housing (8), and the housing (8) is provided with at least one housing cavity (81). The housing cavity (81) is provided with an opening (82) and a limiting ring (83). The limiting ring (83) is rotatable around the rotating body (1). The limiting ring (83) is provided with a notch (832) and a limiting groove (831). The notch (832) connects the opening (82) and the limiting groove (831). In this configuration, the first blade component (2) is located inside the accommodating cavity (81) in the folded state; in the unfolded state, at least a portion of the first blade component (2) is located outside the accommodating cavity (81); the limiting ring (83) is in a first position state, which can limit the rotation of the first blade component (2) around the second axis; and in the second position state, the limiting groove (831) allows the first blade component (2) to switch between the unfolded and folded states through the notch (832).

10. The fluid energy conversion device of claim 9, wherein, It also includes a storage housing (9), which is coaxially sleeved on the rotating body (1), and the accommodating shell (8) can slide along the axial direction of the rotating body (1) and is located inside the storage housing (9).

11. The fluid energy conversion device of any one of claims 1-3, wherein, It also includes a filter cover (10), there are multiple first blade components (2) and they are located inside the filter cover (10). The multiple first blade components (2) are arranged in two first blade groups. Each first blade group includes multiple first blade components (2). The multiple first blade components (2) in each first blade group are arranged circumferentially at intervals along the rotating body (1). The two first blade groups are arranged axially at intervals along the rotating body (1). The first blade component (2) includes a first part (14) and a second part (15) located on both sides of the first axis, wherein the area of ​​the first part (14) is larger than the area of ​​the second part (15). In any one of the first blade groups, a counterweight (16) is provided on the second part (15) of the first blade component (2), so that the second part (15) on the first blade component (2) in the two first blade groups is positioned close to each other.

12. The fluid energy conversion device of any one of claims 1-6, wherein, At least one rotating rod (17) is provided on the rotating body (1), the rotating rod (17) is arranged parallel to the rotating body (1) at intervals, at least one second blade component (18) is rotatably provided on the rotating rod (17), the second blade component (18) has a third surface, and at least one fourth limiting part (19) is provided on the rotating rod (17). The fourth limiting part (19) can limit the second blade component (18) so that the third surface is in the flow-facing state; And / or, multiple rotating bodies (1) are provided, and the multiple rotating bodies (1) are spaced apart along the axial direction of the rotating body (1), and the rotation directions of any two adjacent rotating bodies (1) are opposite.

13. A working machine, characterized in that include: The fluid energy conversion device as described in any one of claims 1 to 12.

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