Fluid energy conversion device and engineering machinery

Abstract

The invention relates to the technical field of energy conversion equipment, and discloses a fluid energy conversion device and engineering machinery, the fluid energy conversion device comprises a rotating body, at least one first blade part and at least one first limiting part, the rotating body is used for outputting rotating mechanical energy; the first blade component is provided with a first face and a first axis, the first blade component rotates around the first axis and is connected with the rotating body, and the first axis and the axial included angle of the rotating body are arranged; the first limiting part can limit the first blade part, so that the first surface is in an incident flow state; the fluid energy conversion efficiency can be improved, and the utilization rate of the fluid energy is further improved.

Description

Technical Field

[0001] The present application relates to the technical field of energy conversion equipment, and in particular to fluid energy conversion devices and engineering machinery. Background Art

[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, driving generators to generate electricity; water flow energy (such as hydropower generation and tidal energy) converts water flow kinetic energy into mechanical energy through turbines, and then drives generators to generate electricity; both technologies rely on fluid movement to drive the rotor, 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 for fluid energy and are unable to further improve the utilization rate of fluid energy. Summary of the Invention

[0004] The present 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, the present application provides a fluid energy conversion device, including a rotating body, at least one first blade component and at least one first limiting portion, and the specific solution 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, and the first axis and the axial angle of the rotating body are set; the first limiting portion can limit the first blade component so that the first surface is in a flow-facing state.

[0007] Beneficial effect: at least one first blade component is arranged to rotate around the first axis on the rotating body, and the first limiting portion can limit the first blade component to keep it in the flow-facing state, thereby providing driving force 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 portion does not limit the first blade component, so that the first blade component rotates under the force of the fluid, thereby reducing the force of the fluid on the first blade component, thereby reducing the resistance of the first blade component to the rotating body, thereby improving the conversion efficiency of fluid energy and further improving the utilization rate of fluid energy.

[0008] In an optional embodiment, the first blade component is provided with an offset rotating shaft portion on the first end along the first axis, the rotating shaft portion rotates around the first axis and is connected to the rotating body, and the first limiting portion is used to limit the portion of the first end away from the rotating shaft portion.

[0009] In an optional 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, a linkage is further included, the number of the first blade components is at least two, the linkage is rotatably connected to the rotating body around 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 portion and the second limiting portion are located on the linkage.

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

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

[0013] Wherein, the first buffer component and the third buffer component are disposed to repel each other, and the second buffer component and the fourth buffer component are disposed to repel each other.

[0014] In an optional embodiment, a synchronizer is further included, and the synchronizer includes:

[0015] a first shaft body, rotatably disposed on the rotating body, wherein the first shaft body is provided with a first meshing tooth and the first limiting portion;

[0016] a second shaft body, rotatably disposed on the rotating body, wherein the second shaft body is provided with a second meshing tooth and a second limiting portion;

[0017] an intermediate wheel rotatably disposed on the rotating body and meshing with both the first meshing teeth and the second meshing teeth;

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

[0019] In an optional embodiment, a third limiting portion 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, and the third limiting portion can limit the first connecting shaft and the linkage from rotating synchronously, wherein the second axis is perpendicular to the first axis;

[0020] Or, it also includes a third limiting portion, a third connecting shaft is provided on the rotating body to rotate along the second axis, the rotating shaft portion is rotatably connected to the third connecting shaft, and the third limiting portion can limit the axis of the rotating shaft portion to be perpendicular to the axis of the rotating body, wherein the second axis is perpendicular to the axial direction of the rotating body.

[0021] In an optional embodiment, the rotating body has a housing, the housing is provided with at least one housing cavity, the housing cavity is provided with an opening and a limiting ring, the limiting ring is capable of rotating around the rotating body, the limiting ring is provided with a notch and a limiting groove, the notch communicates with the opening and the limiting groove;

[0022] In which, when the first blade component is in the folded state, it is in the accommodating cavity; when the first blade component is in the unfolded state, at least part of the first blade component is outside the accommodating cavity; when the limiting ring is in the first position state, it can limit the rotation of the first blade component around the second axis; when the limiting groove is in the second position state, the first blade component switches between the unfolded state and the folded state through the notch.

[0023] In an optional embodiment, it further includes a storage shell, which is coaxially sleeved on the rotating body. The accommodating shell can slide along the axial direction of the rotating body and is located in the storage shell.

[0024] In an optional embodiment, the device further comprises a filter housing, wherein a plurality of first blade components are located within the filter housing, the plurality of first blade components are arranged in two first blade groups, each first blade group comprises a plurality of first blade components, the plurality of first blade components in each first blade group are arranged at intervals along the circumference of the rotating body, and 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 portion and a second portion located on both sides of the first axis, and the area of ​​the first portion is larger than the area of ​​the second portion;

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

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

[0028] The fourth limiting portion is capable of limiting the position of the second blade component so that the third surface is in a flow-facing state;

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

[0030] On the other hand, the present application also provides an engineering machine, comprising: a fluid energy conversion device in any one of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of this application or the technical solutions in related technologies, the following is a brief introduction to the drawings required for use in the specific implementation methods or related technical descriptions. Obviously, the drawings described below are some implementation methods of this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

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

[0033] Figure 2 A schematic diagram of a fluid energy conversion device according to an embodiment of the present application from another perspective;

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

[0035] Figure 4 for Figure 3 A partial enlarged schematic diagram of point A in the middle;

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

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

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

[0039] Figure 8 for Figure 7 A partial enlarged schematic diagram of point B in the middle;

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

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

[0042] Figure 11 for Figure 10 A partial enlarged schematic diagram of point C in the middle;

[0043] Figure 12 for Figure 10 Schematic diagram of the structure of the fluid energy conversion device in the folded state;

[0044] Figure 13 for Figure 12 A partial enlarged schematic diagram of point D in the middle;

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

[0046] Figure 15 for Figure 14 Schematic diagram of the structure of the fluid energy conversion device in the folded state;

[0047] Figure 16 for Figure 14 Schematic diagram of the structure of the fluid energy conversion device in the folded state with the housing removed;

[0048] Figure 17 for Figure 14 Schematic diagram of the structure of the fluid energy conversion device in the expanded state with the housing removed;

[0049] Figure 18 for Figure 15 Schematic diagram of the structure of two synchronizers in the 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 structural diagram of another synchronizer;

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

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

[0054] Figure 23 for Figure 22 A partial enlarged schematic diagram of point E in the middle;

[0055] Figure 24 for Figure 21 Schematic diagram of the structure of the fluid energy conversion device in the folded state;

[0056] Figure 25 for Figure 24 A partial enlarged schematic diagram of point F in the middle;

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

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

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

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

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

[0062] Figure 31 for Figure 30 Schematic diagram of the structure of the fluid energy conversion device without the filter cover;

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

[0064] Description of reference numerals:

[0065] 1. Rotating body; 2. First blade component; 3. First limiting portion; 4. Second limiting portion; 5. Linkage; 6. Synchronizer; 7. Third limiting portion; 8. Accommodating shell; 9. Storage shell; 91. Rotating bearing; 10. Filter cover; 11. Third buffer member; 12. Fourth buffer member; 13. Third connecting shaft; 14. First portion; 15. Second portion; 16. Counterweight; 17. Rotating rod; 18. Second blade component; 19. Fourth limiting portion; 20. Detection module; 21. First surface; 22. Rotating shaft; 23 , first blade body; 231, stop bar; 232, stop hand; 24, first connecting shaft; 25, second connecting shaft; 31, first buffer member; 41, second buffer member; 51, guide roller; 61, first shaft body; 611, first meshing tooth; 62, second shaft body; 621, second meshing tooth; 63, intermediate wheel; 81, accommodating chamber; 82, opening; 821, second arc-shaped portion; 83, limiting ring; 831, limiting groove; 832, notch; 84, cover plate; 841, first arc-shaped portion; 101, reset buffer component. DETAILED DESCRIPTION

[0066] To make the purpose, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of this application.

[0067] It should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application and simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present application. The terms "mounted", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two elements. The terms "parallel", "perpendicular", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within an acceptable deviation range, where the acceptable deviation range is determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the specific quantity (i.e., the limitations of the measurement system). For example, "parallel" includes both absolute parallelism and approximate parallelism, where the acceptable deviation range for approximate parallelism may be, for example, within 5°; "perpendicular" includes both absolute perpendicularity and approximate perpendicularity, where the acceptable deviation range for approximate perpendicularity may also be, for example, within 5°. "Equal" includes both absolute equality and approximate equality, where the acceptable deviation range for approximate equality may be, for example, that the difference between the two is less than or equal to 5% of either. Those skilled in the art will understand the specific meanings 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, driving generators to generate electricity; water flow energy (such as hydropower generation and tidal energy) converts water flow kinetic energy into mechanical energy through turbines, and then drives generators to generate electricity; both technologies rely on fluid movement to drive the rotor, 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 for fluid energy and are unable to further improve the utilization rate of fluid energy.

[0070] In order to solve the above technical problems, the present 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.

[0071] The following combination Figures 1 to 32 , describing the embodiments of the present application.

[0072] According to an embodiment of the present application, on the one hand, 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 portion 3, and the specific solution 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 a device that uses any other energy conversion device with fluid energy. Figures 1 to 3 The direction of the arrow is the flow direction of fluid energy.

[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 tube, a plastic tube, etc.; 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 mounted on other shafts for rotation.

[0075] like Figure 1 and Figure 5 As shown, the number of the first blade components 2 can be one or more, and the first blade component 2 can be any one of a metal blade, a plastic blade, a composite material blade (such as a blade with a metal skeleton inside and a lightweight and high-strength material outside, such as carbon fiber and other composite materials, especially the edge parts of the blade that cooperate with other components use metal components to enhance strength), etc.; 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, and the axial angle between the first axis and the rotating body 1 is set. Specifically, the first axis and the axial direction of the rotating body 1 can be located in the same plane, or the first axis and the axial direction of the rotating body 1 can be located in two different planes respectively, and the two different planes are parallel or intersecting; in detail, the axial angle between the first axis and the rotating body 1 can be any angle between 30° and 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, and the intermediate component is then connected to the rotating body 1. The first blade component 2 can also be fixedly connected to the intermediate component, and the intermediate component is rotatably connected to the rotating body 1 around the first axis.

[0077] More specifically, Figures 1 to 3 As shown in , the first blade member 2 is plate-shaped; Figure 3 and Figure 5As shown in , 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 the first limiting parts 3 matches the number of the first blade parts 2. Specifically, the first limiting parts 3 can be any objects such as blocks, plates, etc. that can limit the first blade parts 2. The first limiting parts 3 can be set on the rotating body 1, or on other parts or other parts fixed on the rotating body 1, as long as they can limit the first blade parts 2.

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

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

[0081] It should be noted that the center of gravity of the first blade component 2 does not coincide with the rotation axis of the first blade component 2, or the areas of the parts 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] The operating principle of the fluid energy conversion device: Figure 1 As shown, the first limiting portion 3 can limit the first blade component 2 when the first surface 21 is in a flow-facing state, and use the force of the fluid on the first surface 21 to push the first blade component 2 to rotate around the axis of the rotating body 1, thereby driving the rotating body 1 to rotate to 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 a flow-facing state. Under the action of the fluid, the first blade component 2 rotates, reducing the effective action area between the second surface and the fluid, thereby reducing the force of the fluid on the first blade component 2, thereby 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 using its own weight and / or the driving force of the fluid acting on the first surface 21 to rotate to the position where the first limiting part 3 limits it, thereby being in a flow-facing state and performing the next cycle.

[0085] In this embodiment, at least one first blade component 2 is arranged to rotate around a first axis on the rotating body 1, and the first limiting portion 3 can limit the first blade component 2 so that it remains in a flow-facing state, thereby providing driving force for the rotating body 1. When the first blade component 2 is in a 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 portion 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, Figure 14 As shown, the first blade member 2 is provided with an offset rotating shaft portion 22 on the first end along the first axis. The rotating shaft portion 22 rotates around the first axis and is connected to the rotating body 1. Figure 21 As shown, the first limiting portion 3 is used to limit the position of the first end away from the rotating shaft portion 22. In this state, the force exerted by the first limiting portion 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 portion 22 and the center of gravity of the first blade portion do not coincide with each other.

[0088] In this embodiment, if Figure 14 and Figure 21 As shown, the rotating shaft portion 22 is offset and rotates around the first axis and is connected to the rotating body 1, which can facilitate the first blade component 2 to quickly switch between the head-on state and the non-head-on state, thereby improving the switching speed and reducing the force acting on the first limit portion 3.

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

[0091] It should be noted that the first limiting portion 3 can limit the first blade component 2 to an angle between the first surface 21 and the flow direction of the fluid of 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 area of ​​the first blade component 2 is the largest, and the force of the fluid on the first blade component 2 is the largest; and the second limiting portion 4 can limit the first blade component 2 to an angle between the first surface 21 and the flow direction of the fluid of 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 area of ​​the first blade component 2 is the smallest, and the force of the fluid on the first blade component 2 is the smallest, that is, the resistance effect on the rotating body 1 is the smallest.

[0092] In the specific use process, 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 a 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 action area between the second surface and the fluid, thereby reducing the force of the fluid on the first blade component 2, thereby reducing the resistance to the rotating body 1.

[0093] In this embodiment, by setting the second limiting portion 4, the first blade component 2 can be rotated between the first limiting portion 3 and the second limiting portion 4. The second limiting portion 4 can prevent the first blade component 2 from swinging back and forth when the effective flow area with the fluid is minimum, thereby reducing the force on the first blade component 2 and improving the energy conversion efficiency.

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

[0095] Specifically, such as Figure 6 As shown, the linkage 5 is a metal frame connecting the two first connecting parts, and can also be other forms of connecting parts; Figure 7 The figure shows a scheme in which four coupling devices 5 are arranged in sequence along the axial direction of the rotating body 1. In this figure, the rotating body 1 is a sleeve shaft, and two coupling devices 5 are arranged on each sleeve. The rotation directions of the two sleeves are opposite to each other to reduce torque damage to the central fixed shaft and improve service life.

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

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

[0098] In this embodiment, during the rotation of the rotating body 1, the two first blade components 2 are synchronized with the flow direction of the fluid, and then when rotating on their own, the two first blade components 2 can be rotated synchronously through the linkage 5, thereby preventing any one of the first blade components 2 from being unable to flip due to insufficient driving force, thereby improving the stability, reliability and sustainability of the equipment operation.

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

[0100] In this embodiment, if 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, it is possible to avoid damage to the first limiting part 3 and the second limiting part 4 when limiting the first blade part 2, and to avoid vibration damage to the rotating body 1, thereby affecting the rotational balance of the rotating body 1 and reducing the energy conversion efficiency.

[0101] In one embodiment, Figure 8 and Figure 9 As shown, the portion of the rotating body 1 that contacts the first buffer member 31 is provided with a third buffer member 11 by gluing or welding or other means, and the portion of the rotating body 1 that contacts the second buffer member 41 is provided with a fourth buffer member 12 by gluing or welding or other means, and the first buffer member 31, the second buffer member 41, the third buffer member 11 and the fourth buffer member 12 are all embedded with magnetic members; wherein, the first buffer member 31 and the third buffer member 11 are arranged to repel each other, and the second buffer member 41 and the fourth buffer member 12 are arranged to repel each other.

[0102] Specifically, the magnetic member can be a permanent magnet or an electromagnet, preferably an electromagnet, which can adjust the magnitude of the magnetic force through an intelligent system according to the direction and speed of the rotating body 1 and the direction, fluid energy intensity and speed, so as to achieve a better shock absorption effect; Figure 9 As shown, magnetic members are embedded on two surfaces of the first buffer member 31 and the third buffer member 11 , and magnetic members are embedded on two surfaces of the second buffer member 41 and the fourth buffer member 12 .

[0103] The contact surfaces of the two interacting magnetic parts can even be close to each other and firmly attached to each other, and the contact surfaces will not produce violent collisions. After that, the positive and negative poles will be instantly changed to the attraction setting until the first axes of the two first blade parts 2 are parallel to the direction of the fluid energy again. When entering the next stage, they will immediately change back to the same pole repulsion setting, and the first blade part 2 will be bounced away together with the action of the fluid, which will further improve efficiency and enhance stability.

[0104] In this embodiment, if Figure 9 As shown, by setting the first buffer part 31, the second buffer part 41, the third buffer part 11 and the fourth buffer part 12 to be magnetic parts; the first buffer part 31 and the third buffer part 11 are set to repel each other, and the second buffer part 41 and the fourth buffer part 12 are set to repel each other, better shock absorption can be achieved, the structure is simple, and the effect is good.

[0105] In one embodiment, 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 set on the rotating body 1 by means of a bearing or a bushing. The first shaft 61 is provided with a first meshing tooth 611 and a first limit portion 3; specifically, the first meshing tooth 611 can be an incomplete gear (that is, only a part of the meshing tooth).

[0106] like Figures 18 to 20 As shown, the second shaft 62 is rotatably arranged on the rotating body 1 by means of a bearing or a bushing, and the second shaft 62 is provided with a second meshing tooth 621 and a second limiting portion 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 arranged on the rotating body 1 by means of a bearing or a bushing, and meshes with both the first meshing teeth 611 and the second meshing teeth 621; specifically, the number of the intermediate wheels 63 can be multiple, and correspondingly, the first meshing teeth 611 on the first shaft body 61 are multiple and correspond one-to-one with the intermediate wheels 63, and the second meshing teeth 621 on the second shaft body 62 are multiple and correspond one-to-one with 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 shaft 61 or the second shaft 62 is connected to the first blade component 2, or the first shaft 61 and the second shaft 62 are both connected to the first blade component 2 to achieve synchronous rotation.

[0109] During specific use, when the rotating body 1 is rotating, the two first blade components 2 are synchronized 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, and the rotation direction is the same, so that the two first blade components 2 can rotate synchronously in the same direction.

[0110] like Figure 18 As shown, the intermediate wheel 63 can be retracted inward and disengaged from the first meshing teeth 611 and the second meshing teeth 621 , so that the blades on the first shaft body 61 and the second shaft body 62 can have a folding angle at the same time.

[0111] In this embodiment, if Figures 18 to 20 As shown, by providing a synchronizer 6, the two first blade components 2 are connected to achieve synchronous rotation in the same direction, thereby preventing any one of the first blade components 2 from being unable to flip due to too little 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 or various other means to achieve synchronization.

[0113] In one embodiment, Figures 10 and 11 As shown, the fluid energy conversion device further includes a third limiting portion 7, as shown in FIG. 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 rotationally connected to the first blade body 23, and the first connecting shaft 24 and the second connecting shaft 25 are rotationally connected around the second axis through a rotating shaft, and the second connecting shaft 25 is fixedly connected to the rotating body 1 by welding, and the third limiting portion 7 can limit the first connecting shaft 24 and the linkage 5 to rotate synchronously, wherein the second axis is perpendicular to the first axis.

[0114] Specifically, such as Figure 11As shown, a stop bar 231 (or other structures) is provided on the first blade body 23, which is engaged with the third limiting portion 7 on the linkage 5. The third limiting portion 7 is specifically a U-shaped block, or other limiting structure that is rotatably connected to the linkage 5. The first blade body 23 is in the unfolded state as shown in FIG. Figure 11 As shown, the first blade body 23 is folded as shown in FIG. Figure 12 and Figure 13 As shown, Figure 13 It can be seen from the figure that when the first blade body 23 is in the folded state, the blocking bar 231 is separated from the third limiting portion 7.

[0115] In the specific use process, such as Figure 10 and Figure 11 As shown, when it is necessary to use fluid energy for energy conversion, the first blade body 23 is rotated around the second axis to the expanded state, and the third limiting portion 7 (U-shaped block) is operated to limit the blocking bar 231 of the first blade body 23, so that the first blade component 2 remains stable in the expanded state, and then energy conversion is performed; Figure 12 and Figure 13 As shown, when energy conversion is not required, the third limiting portion 7 is operated to release the limiting of the blocking bar 231 on 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, 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, at least one accommodating cavity 81 is provided on the accommodating shell 8. A cover plate 84 is further provided on the accommodating cavity 81. The cover plate 84 is connected to the opening 82 of the accommodating cavity 81 by a hinged manner or a snap-on manner.

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

[0118] Among them, Figure 15 As shown, the first blade member 2 is in the folded state and is located in the accommodating cavity 81; Figure 14 As shown, the first blade component 2 is in the expanded state, and the first arc-shaped portion 841 and the second arc-shaped portion 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 portion 7 (not shown in the figure, specifically, the third limiting portion 7 can 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, and the rotating shaft portion 22 is rotatably connected to the third connecting shaft 13. The third limiting portion 7 can limit the axis of the rotating shaft portion 22 to be perpendicular to the axis of the rotating body 1, that is, the third limiting portion 7 can make the first blade component 2 in an expanded state and maintain stability; wherein, the second axis is perpendicular to the axial direction of the rotating body 1.

[0120] Specifically, such as Figure 21 As shown, two groups of first blade components 2 are provided on the rotating body 1, which are spaced apart along the axial direction of the rotating body 1. The upper group is folded downward, and the lower group is folded upward. The two groups of first blade components 2 are arranged crosswise in the folded state.

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

[0122] In a specific embodiment, 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, at least one accommodating cavity 81 (4 in the figure) is provided on the accommodating shell 8, an opening 82 and a limiting ring 83 are provided on the accommodating cavity 81, the limiting ring 83 can rotate around the rotating body 1, and a notch 832 and a limiting groove 831 are provided on the limiting ring 83, the notch 832 connects the opening 82 and the limiting groove 831, and the limiting groove 831 is the third limiting portion 7 (not marked in the figure).

[0123] Among them, Figure 15 and Figure 27 As shown, the first blade member 2 is in the folded state and is located in the accommodating cavity 81; Figure 14 、 Figure 21 and Figure 26 As shown, the first blade member 2 is in the expanded state, and at least part of the first blade member 2 is outside the accommodating cavity 81; Figure 21 As shown, the limiting ring 83 is in the first position state, which can limit the rotation of the first blade component 2 around the second axis; Figure 25 As shown, the limiting groove 831 is in the second position state, and 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 further provided on the accommodating cavity 81, and the cover plate 84 is connected to the opening 82 of the accommodating cavity 81 by a hinged or snap-fitting manner. A rolling bearing is provided at the contact portion between the first blade component 2 and the limiting groove 831 to reduce wear.

[0125] More specifically, a second limiting portion 4 is provided on the inner side wall of the limiting ring 83. Figure 23 As shown, when the limiting ring 83 is in the first position, the second limiting portion 4 can limit the first blade component 2; specifically, a stopper 232 is provided on the first blade component 2, and the stopper bar contacts and limits the second limiting portion 4; Figure 25 As shown, in the second position, the limiting ring 83 can be staggered with the first blade component 2 to facilitate the folding of the first blade component 2. Figure 23 and Figure 25 In the figure, the first limiting portion 3 is located in the lower space inside the limiting ring 83 and is not visible in the figure.

[0126] In this embodiment, if Figures 21 to 25 As shown, by coaxially sleeved on the rotating body 1 a accommodating shell 8 and providing an accommodating cavity 81 on the accommodating shell 8, the first blade component 2 can be easily accommodated; at the same time, a limiting groove 831 and a notch 832 are provided on the limiting ring 83, which can enable the rotating shaft portion 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, Figures 26 to 29 As shown, the fluid energy conversion device also includes a storage shell 9. Specifically, the storage shell 9 can be a plastic shell, a metal shell or a shell made of other materials, etc.; the storage shell 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 in the storage shell 9.

[0128] Specifically, a rotating bearing 91 is embedded in the end of the receiving shell 9 . The rotating bearing 91 is rotatably connected to the accommodating shell 8 of the rotating body 1 , and the accommodating shell 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 shell 9, the accommodating shell 8 is slidably accommodated in the storage shell 9. When accommodated, the volume of the fluid energy conversion device can be reduced, making it easier to carry and accommodate.

[0130] In one embodiment, Figure 30 As shown, the fluid energy conversion device further includes a filter cover 10, which can be a frame, grid 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, which are located in the filter cover 10, such as Figure 31As shown, multiple first blade components 2 are arranged in two first blade groups, each first blade group includes multiple first blade components 2, and the multiple first blade components 2 in each first blade group are arranged at intervals along the circumference of the rotating body 1; wherein, preferably, the rotating bodies 1 of the two first blade groups are not connected, so that the rotation directions of the two first blade groups are opposite, that is, coaxial counter-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; wherein, a counterweight block 16 is provided on the second part 15 of the first blade component 2 located at the upper part, so that the second parts 15 on the first blade components 2 in the two first blade groups are arranged close to each other, that is, the weight of the second part 15 after adding the counterweight block 16 is greater than the weight of the first part 14.

[0132] In this embodiment, a counterweight 16 is provided on the second part 15 of the first blade component 2 to increase the weight of the second part 15, so that the second parts 15 of the first blade components 2 in the two first blade groups are arranged close to each other, 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, etc.) to obtain fluid energy conversion.

[0133] In one embodiment, Figure 32 As shown, at least one rotating rod 17 is fixedly provided 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 provided on the rotating rod 17 by means of a bearing or a bushing. The second blade component 18 has a third surface, and at least one fourth limiting portion 19 is provided on the rotating rod 17; wherein the fourth limiting portion 19 can limit the second blade component 18 so that the third surface is in a flow-facing state.

[0134] Specifically, the fourth limiting portion 19 can be any object capable of limiting the position of the second blade component 18 , such as a block or a plate.

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

[0136] In one embodiment, 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, Figure 21 、 Figure 26 and Figure 27 As shown, the fluid energy conversion device also includes a speed regulating device, a generator, a battery, a power output port and a bracket, etc. The rotating body 1 is connected to the motor transmission, 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 storage shell 9.

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

[0139] According to an embodiment of the present application, on the other hand, there is provided an engineering machine comprising: the fluid energy conversion device and the generator assembly in any one of the above embodiments, wherein the rotating body 1 is drivingly connected to the input shaft of the generator.

[0140] Specifically, engineering machinery refers to equipment with power generation capabilities, such as hydropower generators, wind turbines, etc.; it also has other applications besides power generation, such as directly driving energy storage equipment to avoid secondary conversion; it can even directly drive cars and ships, etc.

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

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

Claims

1. A fluid energy conversion device, characterized in that: include: A 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 around the first axis and connected to the rotating body (1), the first axis being set at an axial angle with the rotating body (1); At least one first limiting portion (3), wherein the first limiting portion (3) is capable of limiting the first blade component (2) so that the first surface (21) is in a flow-facing state.

2. The fluid energy conversion device according to claim 1, characterized in that: The first blade component (2) is provided with an offset rotating shaft portion (22) on the 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 position of the first end away from the rotating shaft portion (22).

3. The fluid energy conversion device according to claim 2, characterized in that: It also includes at least one second limiting portion (4), and the first blade component (2) rotates between the first limiting portion (3) and the second limiting portion (4).

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

5. The fluid energy conversion device according to claim 4, characterized in that: A first buffer component (31) is provided on the first limiting portion (3), and a second buffer component (41) is provided on the second limiting portion (4).

6. The fluid energy conversion device according to claim 5, characterized in that: A third buffer member (11) is provided on the rotating body (1) at a position in contact with the first buffer member (31), a fourth buffer member (12) is provided on the rotating body (1) at a position in contact with the second buffer member (41), and the first buffer member (31), the second buffer member (41), the third buffer member (11) and the fourth buffer member (12) are all embedded with magnetic members; Wherein, the first buffer member (31) and the third buffer member (11) are arranged to repel each other, and the second buffer member (41) and the fourth buffer member (12) are arranged to repel each other.

7. The fluid energy conversion device according to claim 3, characterized in that: Also included is a synchronizer (6), the synchronizer (6) comprising: A first shaft (61) is rotatably mounted on the rotating body (1), wherein the first shaft (61) is provided with first meshing teeth (611) and the first limiting portion (3); A second shaft (62) is rotatably mounted on the rotating body (1), and the second shaft (62) is provided with second meshing teeth (621) and the second limiting portion (4); an intermediate wheel (63) rotatably disposed on the rotating body (1) and meshing with both the first meshing teeth (611) and the second meshing teeth (621); At least one of the first shaft (61) and the second shaft (62) is connected to the first blade component (2).

8. The fluid energy conversion device according to any one of claims 4 to 6, characterized in that: The invention also includes a third limiting portion (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 rotationally connected to the first blade body (23), the first connecting shaft (24) and the second connecting shaft (25) are rotationally connected around the second axis, and the second connecting shaft (25) is fixedly connected to the rotating body (1), and the third limiting portion (7) can limit the first connecting shaft (24) and the linkage (5) from rotating synchronously, wherein the second axis is perpendicular to the first axis; Alternatively, the invention further comprises a third limiting portion (7), a third connecting shaft (13) is provided on the rotating body (1) for rotation along the second axis, the rotating shaft portion (22) is rotationally connected to the third connecting shaft (13), and the third limiting portion (7) can limit the axis of the rotating shaft portion (22) to be perpendicular to the axis of the rotating body (1), wherein the second axis is perpendicular to the axial direction of the rotating body (1).

9. The fluid energy conversion device according to claim 8, characterized in that: The rotating body (1) has a housing shell (8), the housing shell (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 capable of rotating around the rotating body (1), the limiting ring (83) is provided with a notch (832) and a limiting groove (831), the notch (832) is connected to the opening (82) and the limiting groove (831); Wherein, when the first blade component (2) is in the folded state, it is located in the accommodating cavity (81); when the first blade component (2) is in the unfolded state, at least part of the first blade component (2) is located outside the accommodating cavity (81); when the limiting ring (83) is in the first position state, it can limit the rotation of the first blade component (2) around the second axis; when the limiting groove (831) is in the second position state, the first blade component (2) switches between the unfolded state and the folded state through the notch (832).

10. The fluid energy conversion device according to claim 9, characterized in that: It also includes a storage shell (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 in the storage shell (9).

11. The fluid energy conversion device according to any one of claims 1 to 3, characterized in that: It also includes a filter cover (10), a plurality of first blade components (2) located inside the filter cover (10), the plurality of first blade components (2) being arranged in two first blade groups, each first blade group including a plurality of first blade components (2), the plurality of first blade components (2) in each first blade group being arranged at intervals along the circumference of the rotating body (1), and the two first blade groups being arranged at intervals along the axial direction of the rotating body (1); The first blade component (2) comprises a first portion (14) and a second portion (15) located on both sides of the first axis, and the area of ​​the first portion (14) is larger than the area of ​​the second portion (15); Wherein, in any one of the first blade groups, a counterweight (16) is provided on the second portion (15) of the first blade component (2), so that the second portions (15) on the first blade components (2) in the two first blade groups are arranged close to each other.

12. The fluid energy conversion device according to any one of claims 1 to 6, characterized in that: At least one rotating rod (17) is provided on the rotating body (1), the rotating rod (17) is arranged in parallel with the rotating body (1) at an interval, 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 portion (19) is provided on the rotating rod (17); The fourth limiting portion (19) is capable of limiting the position of the second blade component (18) so that the third surface is in a flow-facing state; And / or, a plurality of the rotating bodies (1) are provided, and the plurality of 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. An engineering machine, characterized in that: include: The fluid energy conversion device according to any one of claims 1 to 12.

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