A low-energy-consumption rotary drive mechanism with radius difference and a fluid displacement method

Abstract

This invention discloses a low-energy-consumption rotary drive mechanism with a radius difference and a fluid displacement method, belonging to the field of gravitational potential energy utilization and fluid transmission technology. The mechanism includes a support frame, a central rotating shaft, and torque-generating components distributed circumferentially. The torque-generating components include a first fluid unit and a second fluid unit arranged in vertical staggered layers. Through the timing control of a fluid control valve group, the gravitational potential energy difference is used to achieve automatic fluid displacement between the first and second fluid units, thereby changing the center of gravity and radius of action of the components. Unlike the existing technology that relies on a lead screw motor to actively push and pull a solid counterweight, this invention fundamentally abandons the mechanical telescopic structure and instead utilizes the hydrostatic pressure difference and gravity to achieve torque switching, representing a technological revolution at the level of drive principle rather than a simple component replacement. This invention significantly reduces drive energy consumption and mechanical wear, and has the advantages of structural stability, rapid response, and high energy utilization.

Description

Technical Field

[0001] This invention relates to the fields of gravitational potential energy utilization and fluid transmission technology, and in particular to a low-energy-consumption rotary drive mechanism with a difference in working radius and a fluid displacement method. Background Technology

[0002] With the development of energy technology, devices that utilize gravitational potential energy differences for energy conversion have gradually attracted attention. Existing composite rotary mechanisms mainly use a motor to drive a lead screw, which in turn drives a counterweight module to extend or retract radially to create a difference in the radius of action, thereby generating a rotational torque.

[0003] For example, CN202610654700.5 discloses a composite rotating mechanism based on low energy consumption, difference in operating radius, difference in torque, and difference in apparent weight coupling. This mechanism includes a rotating mechanism, a counterweight assembly, a telescopic drive unit, a track guide structure, and a water environment support unit. Precise transmission, positioning, and locking are achieved through a lead screw and electromagnetic braking of a motor, and the utilization of gravitational potential energy is achieved through dynamic adjustment of the difference in operating radius. However, the existing technology has the following drawbacks:

[0004] 1. Relying on precision mechanical components such as ball screws, sliders, and motors for reciprocating motion in underwater or humid environments, they are prone to wear and corrosion, resulting in high maintenance costs; 2. The motor needs to overcome the inertia of the counterweight module and the water resistance to actively push and pull, especially under a large counterweight, the reset energy consumption is high; 3. The mechanical expansion and contraction process takes time, resulting in a lag in torque switching and limited response speed.

[0005] 4. Traditional mechanical resistance is high, resulting in energy loss and low energy conversion efficiency. Summary of the Invention

[0006] Technical problems to be solved The purpose of this invention is to provide a low-energy-consumption rotary drive mechanism with a difference in working radius, which solves the technical problems of high wear of mechanical transmission components, high energy consumption of matching repositioning, and slow dynamic response in existing gravity drive mechanisms.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A low-energy-consumption rotary drive mechanism with a radius difference is characterized by comprising a support frame, a central rotating shaft rotatably mounted on the support frame via a bearing seat, and at least two sets of torque generating components distributed circumferentially along the central rotating shaft; the torque generating components include a first fluid unit, a second fluid unit, and a fluid control valve group; both the first and second fluid units are fixed to the central rotating shaft via support rods, and a preset potential energy difference structure exists between them, allowing fluid to flow from the first fluid unit to the second fluid unit under the action of gravity; the fluid control valve group includes: an exhaust valve, disposed near the axial end of the first fluid unit, configured to exhaust internal gas during the filling stage of the first fluid unit; and a displacement valve. A fluid exchange channel is configured to control the fluid exchange between the first fluid unit and the second fluid unit; an air inlet valve is configured to introduce air during the liquid discharge process of the second fluid unit to balance the internal and external air pressure; a discharge valve is located at the far-axis end of the second fluid unit and is configured to control the communication between the second fluid unit and the external environment; when the discharge valve is opened, gravity and static pressure difference are used to discharge the liquid in the second fluid unit or allow the external liquid to fill by gravity; the drive mechanism is configured to operate in the fluid environment and, by controlling the opening and closing of the fluid control valve group, changes the center of gravity position of the torque generating component, thereby generating a torque to drive the central shaft to rotate.

[0008] Furthermore, the potential energy difference structure is arranged in a staggered manner in the vertical direction, with the bottom of the first fluid unit being higher than the top of the second fluid unit.

[0009] Furthermore, the discharge valve is configured to utilize the submerged static pressure difference to achieve the self-flow filling of the first fluid unit, and to utilize gravity and the submerged outflow principle to achieve the automatic emptying of the second fluid unit; the exhaust valve is configured to utilize the submerged static pressure difference to achieve auxiliary exhaust during the self-flow filling of the first fluid unit.

[0010] Furthermore, the torque generating component also includes a drive motor, which is used to drive the valves in the fluid control valve group to operate; the drive motor and the control accessories of the fluid control valve group are uniformly installed on the axial outer side of the first fluid unit and / or the second fluid unit.

[0011] Furthermore, the fairing is installed on the outside of the torque generating component and completely encloses the drive motor and control accessories, forming a closed or semi-closed annular shield structure.

[0012] Furthermore, the torque generating components are arranged in a dense array along the circumference of the central axis, with adjacent torque generating components closely connected to form a ring structure.

[0013] Furthermore, the exhaust valve, the displacement valve, the intake valve, and the discharge valve preferably adopt a flap valve structure.

[0014] Furthermore, the flap valve structure includes multiple sub-flap units arranged in an array, which are configured to work together to open or close the valve.

[0015] This invention also proposes a rotary drive method based on fluid displacement and center of gravity switching, applicable to the aforementioned low-energy-consumption rotary drive mechanism with radius difference. The steps are as follows: potential energy displacement and center of gravity shift step: when the torque generating component rotates to near the highest point, the position detection component detects the preset angle position and sends a trigger signal. The control unit opens the displacement valve according to the trigger signal, and uses the preset potential energy difference and the rotation of the torque generating component to make the fluid automatically flow from the first fluid unit to the second fluid unit, thereby realizing the shift of the center of gravity of the mechanism from the inside to the outside. Heavy-load working steps: When the torque generating component is in the decreasing range, the air inlet valve of the discharge valve is kept in the closed and locked state, so that the fluid is mainly concentrated in the second fluid unit, forming a long radius of action to output driving torque; Injection and venting steps: When the torque generating component rotates to the preset position, the second fluid unit of the torque generating component is submerged in the fluid of the water tank. At this time, the venting valve, the inlet valve, the discharge valve, and the displacement valve that remains open are opened to form an open communication structure. Liquid is filled into the first fluid unit by gravity using the submerged static pressure difference, and the gas inside the first fluid unit is discharged. After filling is completed, the venting valve and the displacement valve are closed to maintain the liquid level of the first fluid unit. The venting and radius-of-effect switching steps are as follows: After the displacement valve and exhaust valve are closed, the intake valve remains open to balance the air pressure. At the same time, the discharge valve remains open, so that the second fluid unit forms an open communicating vessel structure. The fluid in the second fluid unit is discharged under the action of the rotation of the torque generating component, the submerged outflow, and gravity, and the discharge valve and intake valve are closed to prepare for the next step, and the radius of effect is switched from long to short.

[0016] Beneficial effects The present invention has the following beneficial effects: (1) Ultra-low energy consumption operation: The fluid is automatically replaced by using the gravitational potential energy difference between the first fluid unit and the second fluid unit. There is no need for a motor to drive the push and pull of the heavy counterweight, which significantly reduces energy loss. At the same time, the ring-shaped torque generating components and the fairing greatly reduce water resistance, further reducing energy loss.

[0017] (2) Stable structure and long service life: The easily damaged mechanical structures such as underwater screws and guide rails have been eliminated, and the main moving parts are only valves, which avoids the wear and corrosion of precision mechanical parts underwater.

[0018] (3) Precise response: Fluid displacement is superior to mechanical movement, and can complete the center of gravity switching at high-requirement phase positions, extend the work time, reduce energy loss, and improve energy conversion efficiency.

[0019] (4) The solution has a clear logic: the pressure balance problem of fluid entering and leaving the sealed container is solved by the cooperation of the air inlet valve and the exhaust valve, which ensures the feasibility of the technical solution.

[0020] (5) Zero-load balanced operation: In the embodiment using a flap valve, the flap valve is in a state of hydrostatic balance or neutral buoyancy throughout the entire process of water inlet, water inlet, water outlet, and air closure. The drive system only needs to overcome extremely small mechanical friction and inertia, achieving true low-energy maintenance.

[0021] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram illustrating an embodiment of the present invention; Figure 3 This is a cross-sectional view of the torque generating component of the present invention.

[0023] Explanation of reference numerals in the attached drawings: support frame 1; bearing seat 2; central rotating shaft 3; support rod 4; first fluid unit 6; second fluid unit 7; rectifier 8; exhaust valve 9; displacement valve 10; air inlet valve 11; discharge valve 12; water tank 20; drain pipe 21; float valve assembly 22. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] like Figures 1 to 3 As shown, the present invention provides a low-energy-consumption rotary drive mechanism with a difference in working radius, including a support frame 1 and a central rotating shaft 3. The central rotating shaft 3 is rotatably mounted on the support frame 1 through a bearing seat 2, and at least two sets of torque generating components are distributed circumferentially on the central rotating shaft 3.

[0027] The torque generating assembly includes a first fluid unit 6, a second fluid unit 7, and a fluid control valve group. The first fluid unit 6 and the second fluid unit 7 are mounted on the central rotating shaft 3 via support rods 4, and there is a preset potential energy difference structure between them, so that fluid can flow from the first fluid unit 6 to the second fluid unit 7 under the action of gravity. The potential energy difference structure is a staggered arrangement in the vertical direction, with the bottom of the first fluid unit 6 being higher than the top of the second fluid unit 7.

[0028] The fluid control valve assembly includes: an exhaust valve 9 located near the axial end of the first fluid unit 6; a displacement valve 10 connecting the first fluid unit 6 and the second fluid unit 7; an intake valve 11 located on both sides of the second fluid unit 7; and a discharge valve 12 located at the distal end of the second fluid unit 7.

[0029] The torque generating component also includes a drive motor, which is used to drive the valves in the fluid control valve group to operate; the drive motor and the control accessories of the fluid control valve group are uniformly installed on the axial outer side of the first fluid unit 6 and / or the second fluid unit 7, and a shunting cover 8 is installed on the outer side of the torque generating component, which completely encloses the drive motor and control accessories to form a closed or semi-closed annular shield structure.

[0030] In a specific embodiment: the torque generating components are arranged in a dense array along the circumference of the central rotating shaft 3, and adjacent torque generating components are closely connected to form a ring structure, thereby reducing water resistance during rotation and reducing unnecessary energy dissipation.

[0031] In a specific embodiment: the exhaust valve 9, the displacement valve 10, the intake valve 11, and the discharge valve 12 preferably adopt a flap valve structure. The flap valve structure includes multiple sub-flap units distributed in an array. The multiple sub-flap units are configured to be synchronously linked to jointly realize the opening or closing of the valve, thereby quickly emptying and filling the first fluid unit 6 and the second fluid unit 7, which is adapted to the working requirements of the present invention for rapid valve switching. At the same time, the synchronous linkage control logic does not affect the overall sealing performance of the valve. After each sub-flap is closed, they can be spliced ​​together to form a complete sealing surface, effectively avoiding energy loss caused by fluid resistance, and further ensuring the stability of the mechanism operation and energy conversion efficiency.

[0032] In a specific embodiment: both the torque generating component and the fluid control valve group are equipped with reinforcing ribs to ensure structural strength.

[0033] In use, the rotary drive mechanism is installed in a water tank 20, which is equipped with a drain pipe 21. A float valve assembly 22 is installed on the drain pipe 21 to control and adjust the height of the fluid in the water tank 20, ensuring that the fluid height is sufficient to submerge the torque generating component at the bottom and remain below the central rotating shaft 3. One end of the central rotating shaft 3 is connected to an external drive device for starting the rotary drive mechanism, and the other end is connected to a load for driving work. This utilizes the fluid in the water tank 20 to improve the driving efficiency of the external drive device on the load, thereby achieving energy saving. The drive motor in this rotary drive mechanism is driven by an external power source.

[0034] The specific steps of this rotary drive mechanism are as follows: S1. Initial state and fluid resuscitation The mechanism is placed inside the water tank 20. Before the first fluid unit 6 and the second fluid unit 7 in the torque generating assembly are immersed in the water, the exhaust valve 9, the air inlet valve 11, the discharge valve 12, and the displacement valve 10 are all opened, forming an open communicating vessel structure. As the torque generating assembly rotates, the second fluid unit 7 and the first fluid unit 6 are slowly immersed in the water. The water enters the second fluid unit 7 and the first fluid unit 6 one after the other by the hydrostatic pressure of the liquid, and completes the exhaust and replenishment of liquid before reaching the center rotating shaft 3. Then the exhaust valve 9 and the displacement valve 10 are closed, locking the fluid inside the first fluid unit 6.

[0035] S2. Emptying and switching between long and short action radius The torque generating component begins to rotate upwards after passing its lowest point; to reduce upward resistance, the liquid inside the second fluid unit 7 is discharged. The inlet valve 11 and the outlet valve 12 remain open, forming an open communicating vessel structure; the torque generating component continues to rotate, and the liquid in the second fluid unit 7 is completely emptied under the influence of gravity and submerged outflow. The center of gravity of the torque generating component returns to the first fluid unit 6 near the rotating shaft, forming a short radius of action, and rises with less resistance. During the ascent, the outlet valve 12 and the inlet valve 11 are closed, preparing for the next step.

[0036] S3. Potential energy displacement, center of gravity shift. When the torque generating component rotates to near its highest point, the displacement valve 10 opens. As the torque generating component rotates and the first fluid unit 6 is misaligned above the second fluid unit 7, water flows into the second fluid unit 7 under gravity when the component rotates to a horizontal position. The center of gravity of the device shifts from the first fluid unit 6, which is closer to the axis, to the second fluid unit 7, which is farther from the axis, thus creating a long radius of action.

[0037] S4. Heavy load operation After the torque generating component rotates to the horizontal position of the shaft, the center of gravity shifts outward and the long radius of action is formed; the gravity output has a large driving torque, which drives the central shaft 3 to rotate continuously.

[0038] S5. Injection and venting When the second fluid unit 7 is fully immersed in water, the exhaust valve 9, the air inlet valve 11, and the discharge valve 12 open simultaneously with the open displacement valve 10 to form an open communicating vessel structure; the torque generating component continues to rotate, driving the first fluid unit 6 to sink into the water; the liquid water pressure in the water tank 20 drives the water flow to flow through the second fluid unit 7 and into the first fluid unit 6 in sequence; the exhaust valve 9 discharges the air in the cavity; after the first fluid unit 6 is filled with water, the exhaust valve 9 and the displacement valve 10 close, and then the cycle begins in step S2.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A low-energy-consumption rotary drive mechanism with a radius difference, characterized in that, include: The support frame (1), the central rotating shaft (3) rotatably mounted on the support frame (1) via the bearing seat (2), and at least two sets of torque generating components distributed circumferentially along the central rotating shaft (3); The torque generating component includes a first fluid unit (6), a second fluid unit (7), and a fluid control valve group; the first fluid unit (6) and the second fluid unit (7) are both fixed to the central rotating shaft (3) by a support rod (4), and there is a preset potential energy difference structure between them, so that the fluid can flow from the first fluid unit (6) to the second fluid unit (7) under the action of gravity. The fluid control valve assembly includes: An exhaust valve (9) is located at the near-axial end of the first fluid unit (6) and is configured to discharge internal gas during the filling phase of the first fluid unit (6). The displacement valve (10), which connects the first fluid unit (6) and the second fluid unit (7), is configured to control the fluid exchange channel between the two units; The air intake valve (11), which connects the gas phase space of the second fluid unit (7) with the atmosphere, is configured to introduce air during the liquid discharge process of the second fluid unit (7) to balance the internal and external air pressure; A discharge valve (12) is located at the far-axis end of the second fluid unit (7) and is configured to control the communication between the second fluid unit (7) and the external environment. When the discharge valve (12) is opened, gravity and static pressure difference are used to realize the discharge of liquid in the second fluid unit (7) or the self-flow filling of external liquid. The drive mechanism is configured to operate in a fluid environment and, by controlling the opening and closing of the fluid control valve group, changes the center of gravity position of the torque generating component, thereby generating a torque that drives the central shaft (3) to rotate.

2. The low-energy-consumption radius difference rotary drive mechanism according to claim 1, characterized in that: The potential energy difference structure is arranged in a staggered manner in the vertical direction, with the bottom of the first fluid unit (6) being higher than the top of the second fluid unit (7).

3. The low-energy-consumption radius difference rotary drive mechanism according to claim 1, characterized in that: The discharge valve (12) is configured to automatically discharge the second fluid unit (7) using the principle of submerged outflow and to achieve the self-flow filling of the first fluid unit (6) using the submerged static pressure difference; the exhaust valve (9) is configured to assist in exhausting the first fluid unit (6) during self-flow filling using the submerged static pressure difference.

4. The low-energy-consumption rotary drive mechanism with radius difference according to claim 1, characterized in that: The torque generating component also includes a drive motor, which is used to drive the valves in the fluid control valve group to move; the drive motor and the control accessories of the fluid control valve group are uniformly installed on the axial outside of the first fluid unit (6) and / or the second fluid unit (7).

5. The low-energy-consumption rotary drive mechanism with radius difference according to claim 4, characterized in that, Also includes: The fairing (8) is installed on the outside of the torque generating component and completely encloses the drive motor and control accessories to form a closed or semi-closed annular shield structure.

6. The low-energy-consumption radius difference rotary drive mechanism according to claim 1, characterized in that: The torque generating components are arranged in a dense array along the circumference of the central rotating shaft (3), and adjacent torque generating components are closely connected to form a ring structure.

7. The low-energy-consumption rotary drive mechanism with radius difference according to any one of claims 1 to 6, characterized in that: The exhaust valve (9), the displacement valve (10), the intake valve (11), and the discharge valve (12) preferably adopt a flap valve structure.

8. The low-energy-consumption radius difference rotary drive mechanism according to claim 7, characterized in that: The flap valve structure includes multiple sub-flap units arranged in an array. These multiple sub-flap units are configured to work synchronously to jointly open or close the valve.

9. A rotary drive method based on fluid displacement and center of gravity switching, applied to a low-energy-consumption rotary drive mechanism with a difference in working radius as described in any one of claims 1 to 8, comprising the following steps: Potential energy replacement and center of gravity shift steps: When the torque generating component rotates to near the highest point, the valves of the torque generating component are all closed. Then, the replacement valve (10) is opened. Using the preset potential energy difference and the rotation of the torque generating component, the fluid automatically flows from the first fluid unit (6) to the second fluid unit (7), realizing the movement of the center of gravity of the mechanism from the inside to the outside. Each torque generating component is triggered in sequence at the same preset angle position according to the angle difference, forming continuous potential energy replacement and center of gravity shift. Heavy-load working steps: When the torque generating component is in the descending range, the intake valve (11) and the discharge valve (12) are kept in the closed and locked state, so that the fluid is mainly concentrated in the second fluid unit (7) to form a long working radius to output driving torque; Injection and venting steps: When the torque generating component rotates to the preset position, the second fluid unit (7) of the torque generating component is submerged in the fluid of the water tank (20). At this time, the venting valve (9), the air inlet valve (11), the discharge valve (12), and the previously opened displacement valve (10) form an open communication structure. The liquid is filled into the first fluid unit (6) by gravity using the submerged static pressure difference, and the gas inside the first fluid unit (6) is discharged. After the filling is completed, the venting valve (9) and the displacement valve (10) are closed to maintain the liquid level of the first fluid unit (6). Emptying and radius of action switching steps: After the displacement valve (10) and exhaust valve (9) are closed, the intake valve (11) remains open to balance the air pressure. At the same time, the discharge valve (12) remains open, so that the second fluid unit (7) forms an open communicating vessel structure. The fluid in the second fluid unit (7) is discharged under the action of gravity and submerged outflow due to the rotation of the torque generating component. The discharge valve (12) and intake valve (11) are closed to achieve the switching of the radius of action from long to short.

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