An adaptive vane adjustment device and method of use thereof

Abstract

The application relates to a self-adaptive blade adjusting device and a use method thereof, which comprises a main shaft, an impeller seat, a plurality of blades, a plurality of blade gears, a hydraulic screw transmission mechanism and a self-adaptive control module; through the steps of parameter collection, signal processing and comparison, adjustment execution, real-time feedback and closed-loop re-adjustment, the blade adjusting response is rapid and the control precision is high, the working condition fluctuation operation can be automatically adapted, manual on-duty intervention is not needed; fluid residual pressure energy can be efficiently recovered and converted into available electric energy, energy saving and carbon reduction and operation cost reduction are obviously realized; the overall equipment is stable and reliable in operation, has excellent sealing protection performance and can effectively prolong the overall service life; the structure is compact and reasonable, disassembly, maintenance and repair are convenient, and the comprehensive use cost is lower; the energy consumption of a pipe network system and water hammer risk can be greatly reduced, and the operation safety and stability of a fluid conveying system are comprehensively improved.

Description

Technical Field

[0001] This invention relates to the field of valve technology, and more specifically to an adaptive blade adjustment device and its usage method. Background Technology

[0002] Traditional fluid control devices often employ external drive structures, resulting in slow blade adjustment response and low precision, making them unsuitable for automatic operation under fluctuating conditions. Some devices lack integrated residual pressure recovery functions, leading to significant waste of pipeline pressure energy, high energy consumption, and poor carbon reduction effects. Furthermore, they suffer from weak sealing performance, unreasonable bearing support, easy jamming of transmission structures, and inconvenient disassembly and maintenance, making it difficult to meet the energy-saving, intelligent, and stable operation requirements of industrial fluid transport systems. Summary of the Invention

[0003] In order to solve the above-mentioned problems in the prior art, the present invention aims to provide an adaptive blade adjustment device and its usage method.

[0004] The technical solution adopted in this invention is as follows: An adaptive blade adjustment device, comprising: spindle; The impeller seat is fixedly sleeved on the outside of the main shaft; Multiple blades are evenly arranged around the impeller seat and can rotate around their own axis; Multiple blade gears are rotatably disposed inside the impeller seat to form a blade gear set and are connected to the bottom ends of the multiple blades. A hydraulic screw drive mechanism, located inside the main shaft, is used to drive the blade gear set to rotate; And an adaptive control module; The hydraulic screw transmission mechanism includes a hydraulically driven slider and a helical gear with a helical groove inside that cooperates with the slider. The hydraulic screw transmission mechanism converts linear displacement into rotational displacement and drives the blade gear set to synchronously and steplessly adjust the angle of all blades. The adaptive control module includes a sensing and acquisition unit, a signal processing unit, and an execution unit. The adaptive control module acquires the pressure, flow rate, and velocity of the target fluid, processes them, and feeds them back to the hydraulic screw drive mechanism to execute adjustment commands. Based on the adjustment load, system energy consumption, and power generation efficiency, the module adaptively increases or decreases the contact area between the blades and the fluid.

[0005] As a preferred embodiment of the present invention, the end of the main shaft away from the slider is provided with an angular contact ball bearing and a radial ball bearing I, and the other end of the main shaft is provided with a radial ball bearing II. Each bearing is provided with a bearing cap and a skeleton oil seal on its outer side. The adaptive blade adjustment device is connected through the bearing and the valve housing.

[0006] As a preferred embodiment of the present invention, the impeller seat is fixedly connected to the main shaft by a flat key, the impeller seat is provided with a plurality of mounting holes in the circumference, a rotating disk is fixedly provided at one end of the blade near the blade gear, the rotating disk cooperates with the mounting holes, and the blade gear is connected to the rotating disk by bolts.

[0007] As a preferred embodiment of the present invention, the hydraulic screw transmission mechanism further includes a cylinder cover fixedly disposed at one end of the main shaft, the cylinder cover and the main shaft forming an oil chamber, a piston being slidably disposed in the oil chamber, a piston rod being fixedly disposed at the end of the piston away from the cylinder cover, and the slider being detachably mounted at the end of the piston rod away from the piston.

[0008] As a preferred embodiment of the present invention, the end of the slider is fixedly provided with a hemispherical cylindrical pin, the inner sidewall of the helical gear is provided with a spiral groove, and the hemispherical cylindrical pin cooperates with the spiral groove.

[0009] As a preferred embodiment of the present invention, the main shaft has an oblong through hole, and the slider is confined within the oblong through hole and slides axially along the main shaft.

[0010] As a preferred embodiment of the present invention, a spring is provided inside the main shaft. The spring is located on the side of the slider away from the oil chamber. The spring is used to drive the piston and the slider to automatically reset, forming a bidirectional force balance with the hydraulic thrust in the oil chamber.

[0011] As a preferred embodiment of the present invention, the end of the blade away from the rotating disk is fixedly connected to the rim by a positioning pin, and a permanent magnet for generating electricity is provided on the outer side of the rim, and a coil connected to the valve housing is provided on the outer side of the permanent magnet.

[0012] A method of using an adaptive blade adjustment device includes the following steps: S1. Parameter acquisition: The pressure, flow rate, and flow velocity status parameters of the fluid are acquired in real time through the sensor acquisition unit. S2. Signal processing and comparison: Using the signal processing unit, the acquired parameters are compared with the preset target value to determine the deviation and generate adjustment instructions; S3. Perform adjustment: The execution unit drives the hydraulic screw transmission mechanism according to the adjustment command to complete the stepless adjustment of the blade angle; S4. Real-time feedback: Collect the adjusted fluid parameters and feed them back to the signal processing unit; S5. Closed-loop re-adjustment: Based on the feedback parameters, the adjustment effect is checked, and the blade angle is dynamically corrected until the parameters are stable.

[0013] As a preferred embodiment of the present invention, when it is necessary to reduce the regulating load and lower system energy consumption, the hydraulic oil supply pressure is increased, and the hydraulic screw transmission mechanism drives the blade to rotate, thereby reducing the contact area between the blade and the fluid; when it is necessary to increase the regulating force and improve the power generation efficiency, the hydraulic oil supply pressure is reduced, and the hydraulic screw transmission mechanism drives the blade to rotate in the opposite direction, thereby increasing the contact area between the blade and the fluid.

[0014] The beneficial effects of this invention are as follows: As an adaptive blade adjustment device and its usage method, this invention provides rapid blade adjustment response and high control precision, automatically adapting to fluctuating operating conditions without manual intervention; it can efficiently recover residual fluid pressure energy and convert it into usable electrical energy, significantly achieving energy saving, carbon reduction, and lower operating costs; the overall equipment operates stably and reliably, with excellent sealing and protection performance, effectively extending its overall service life; the structure is compact and reasonable, disassembly, assembly, maintenance, and repair are convenient, resulting in lower overall operating costs; it can significantly reduce energy consumption and water hammer risk in pipeline systems, comprehensively improving the operational safety and stability of fluid transport systems. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is an exploded structural diagram of the regulating device of the present invention; Figure 2 This invention is applied Figure 1 Schematic diagram of the exploded structure of the valve in the regulating device; Figure 3 This is the present invention. Figure 2 A schematic diagram of the assembly structure; Figure 4 This is the present invention. Figure 3 A schematic diagram of the cross-sectional structure; Figure 5 This is the present invention. Figure 3 A schematic diagram of the structure after the outer shell is concealed; Figure 6 This is the present invention. Figure 5 A schematic diagram of the structure after the partition is hidden; Figure 7 This is the present invention. Figure 4 A schematic diagram showing the hidden internal structure of a helical gear. Detailed Implementation

[0017] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0018] Combination Figures 1-7 An adaptive blade adjustment device, comprising: Spindle 24; Impeller seat 26 is fixedly sleeved on the outside of the main shaft 24; Multiple blades 23 are evenly arranged around the impeller seat 26 and can rotate around their own axis; Multiple blade gears 42 are rotatably disposed inside the impeller seat 26 to form a blade gear set and are connected to the bottom ends of multiple blades 23. A hydraulic screw drive mechanism is disposed inside the main shaft 24 and is used to drive the blade gear set to rotate; And an adaptive control module; The hydraulic screw transmission mechanism includes a hydraulically driven slider 41 and a helical gear 30 with a helical groove 51 inside and cooperating with the slider 41. The hydraulic screw transmission mechanism converts linear displacement into rotational displacement and drives the blade gear set to drive all blades 23 to adjust their angle synchronously and steplessly. The adaptive control module includes a sensing and acquisition unit, a signal processing unit, and an execution unit. The adaptive control module acquires the pressure, flow rate, and velocity of the target fluid, processes the data, and feeds it back to the hydraulic screw drive mechanism to execute adjustment commands. Based on the adjustment load, system energy consumption, and power generation efficiency, it adaptively increases or decreases the contact area between the blades 23 and the fluid. During implementation, the main shaft 24 has a built-in hydraulic screw drive mechanism. The axial movement of the slider 41, in conjunction with the helical gear 30 and helical groove 51, converts linear displacement into rotational displacement, driving the blade gear 42 to synchronously and steplessly adjust the angle of the blades 23. The adaptive control module acquires fluid parameters for closed-loop adjustment, resulting in precise and rapid response, adapting to fluctuating operating conditions, and requiring no manual intervention.

[0019] Advantageously, the main shaft 24, at one end away from the slider 41, is provided with an angular contact ball bearing 45 and a radial ball bearing 48, and at the other end of the main shaft 24, a radial ball bearing 34 is provided. Each bearing has a bearing cap and a skeleton oil seal 32 on its outer side. The adaptive blade adjustment device is connected to the valve housing through the bearings. The bearing cap includes a rear bearing cap 29 and a front bearing cap 33. A rear bearing cap 29 is provided on the side away from each other of the angular contact ball bearing 45 and the radial ball bearing 48. Both rear bearing caps 29 are penetrated by the main shaft 24. A skeleton oil seal 32 is provided on the side away from each other of the two rear bearing caps 29. A bushing 38 penetrated by the main shaft 24 is provided between the radial ball bearing 48 and the impeller seat 26. The valve housing includes a front cover 22, an outer shell 14, and a rear cover 11. The rear cover 11 and the front cover 22 are connected by bolts on both sides of the outer shell 14. Both the rear cover 11 and the front cover 22 are circular ring structures. Connecting sleeves 13 are fixed on the inner side walls of both by multiple connecting rods 12. One end of the main shaft 24 is equipped with an angular contact ball bearing 45 and a radial ball bearing 48, and the other end is equipped with a radial ball bearing 34. The outer side of the bearings is equipped with a rear bearing cover 29, a front bearing cover 33 and a skeleton oil seal 32. The bearings are connected to the valve body, which provides stable load bearing, low rotational resistance, reliable sealing and extended service life.

[0020] Advantageously, the impeller seat 26 is fixedly connected to the main shaft 24 via a flat key. The impeller seat 26 has multiple mounting holes 28 circumferentially arranged. A rotating disk 25 is fixedly mounted on one end of the blade 23 near the blade gear 42. The rotating disk 25 mates with the mounting holes 28, and the blade gear 42 is connected to the rotating disk 25 via bolts. A hub cap 31 is fixedly mounted on one end of the impeller seat 26 via bolts, and the main shaft 24 passes through the hub cap 31. The impeller seat 26 is fixedly connected to the main shaft 24 via a flat key, the rotating disk 25 mates with the mounting holes 28, the blade gear 42 is bolted to the rotating disk 25, and the hub cap 31 is fixedly mounted on the end of the impeller seat 26. This design ensures high assembly precision, convenient assembly and disassembly, and stable transmission without loosening.

[0021] Advantageously, the hydraulic screw drive mechanism further includes a cylinder cover 37 fixedly disposed at one end of the main shaft 24. The cylinder cover 37 and the main shaft 24 form an oil chamber 47. A piston 46 is slidably disposed within the oil chamber 47. A piston rod 49 is fixedly disposed at the end of the piston 46 away from the cylinder cover 37. The slider 41 is detachably mounted at the end of the piston rod 49 away from the piston 46. The cylinder cover 37 and the main shaft 24 form the oil chamber 47, the piston 46 slides within the oil chamber 47, and the piston rod 49 connects to the slider 41. The hydraulic drive is smooth, and the internal structure is compact and does not occupy external space.

[0022] Advantageously, a hemispherical cylindrical pin 50 is fixedly provided at the end of the slider 41, and a spiral groove 51 is provided on the inner side wall of the helical gear 30. The hemispherical cylindrical pin 50 cooperates with the spiral groove 51. The hemispherical cylindrical pin 50 of the slider 41 is embedded in the spiral groove 51 of the helical gear 30 to form a sliding fit, which results in high displacement conversion accuracy, no transmission jamming, and controllable adjustment angle.

[0023] Advantageously, the main shaft 24 has an oblong through hole 40, and the slider 41 is confined within the oblong through hole 40 and slides axially along the main shaft 24. A through hole 52 is provided in the middle of the slider 41, and the through hole 52 and piston rod 49 are connected by bolts. The slider 41's directional sliding within the oblong through hole 40 of the main shaft 24, and the through hole 52 connecting the slider 41 to the piston rod 49, ensures precise movement trajectory, avoids deviation and jamming, and improves adjustment consistency.

[0024] Advantageously, a spring 43 is provided inside the main shaft 24. The spring 43 is located on the side of the slider 41 away from the oil chamber 47. The spring 43 is used to drive the piston 46 and the slider 41 to automatically reset, forming a bidirectional force balance with the hydraulic thrust in the oil chamber 47. The spring 43 inside the main shaft 24 drives the piston 46 and slider 41 to reset, forming a force balance with the hydraulic thrust, resulting in smooth bidirectional adjustment, precise reset, and fast response speed. High-pressure hydraulic oil enters the oil chamber 47 through a dedicated oil circuit, pushing the piston 46 to slide smoothly in a straight line along the axial direction of the main shaft 24. The piston rod 49 and the slider 41 move together with the piston 46. The hemispherical cylindrical pin 50 on the slider 41 and the spiral groove 51 on the inner side of the helical gear 30 are tightly engaged, driving the helical gear 31 to rotate circumferentially along the main shaft 24. Under the action of meshing, the helical gear 30 drives the vane gear 42 to rotate. The vane 23 follows the vane gear 42 and rotates synchronously around its own axis, realizing the angle adjustment of the vane 23. During this process, the spring 32 is compressed. After the liquid level of the high-pressure hydraulic oil in the oil chamber 47 stabilizes, the elastic force of the spring 32 and the pressure of the oil chamber 47 reach a balance, so that the piston 46 and the piston rod 49 are balanced on both sides, thereby keeping the helical gear 30 in a stable posture and the vane 23 also maintains a stable angle.

[0025] Advantageously, the end of the blade 23 furthest from the rotating disk 25 is fixedly connected to the rim 19 via a positioning pin 27. A permanent magnet 16 for power generation is provided on the outer side of the rim 19, and a coil 20 connected to the valve housing 14 is provided on the outer side of the permanent magnet 16. A mounting space 36 is formed between the generator partition 15 and the outer casing 14. A mounting ring 21 is provided within the mounting space 36, and multiple mounting slots are provided on the mounting ring 21. Multiple coils 20 are respectively installed in the multiple mounting slots. An O-ring seal 17 is provided at each end of the rim 19, and the two ends of the rim 19 are respectively connected to the rear cover 11 and the front cover 22. The blade 23 is connected to the rim 19 via the positioning pin 27. The rim 19 is provided with an O-ring seal 17. The permanent magnet 16, in conjunction with the coil 20, generates electricity. The generator partition 15 and the outer casing 14 form the mounting space 36, allowing for the recovery of residual pressure for power generation. The system is securely sealed, saving energy and reducing carbon emissions.

[0026] A method of using an adaptive blade adjustment device includes the following steps: S1. Parameter acquisition: The pressure, flow rate, and flow velocity status parameters of the fluid are acquired in real time through the sensor acquisition unit. S2. Signal processing and comparison: Using the signal processing unit, the acquired parameters are compared with the preset target value to determine the deviation and generate adjustment instructions; S3. Perform adjustment: The execution unit drives the hydraulic screw transmission mechanism according to the adjustment command to complete the stepless adjustment of the blade angle 23. S4. Real-time feedback: Collect the adjusted fluid parameters and feed them back to the signal processing unit; S5. Closed-loop retuning: Based on the feedback parameters, the adjustment effect is checked, and the blade 23 angle is dynamically corrected until the parameters are stable.

[0027] Beneficially, when it is necessary to reduce the regulating load and lower system energy consumption, the hydraulic oil supply pressure is increased, and the hydraulic screw transmission mechanism drives the blade 23 to rotate, thereby reducing the contact area between the blade 23 and the fluid; when it is necessary to increase the regulating force and improve the power generation efficiency, the hydraulic oil supply pressure is reduced, and the hydraulic screw transmission mechanism drives the blade 23 to rotate in the opposite direction, thereby increasing the contact area between the blade 23 and the fluid.

[0028] Working principle of this invention: (I) Principle of the integrated residual pressure power generation valve: When fluid media such as water flow through the valve, they actively impact the internal blades 23, causing the blades 23 to rotate at high speed around the main shaft 24. To ensure lossless power transmission, the blades 23 are rigidly connected to the rim 19 via high-precision positioning pins 27, completely avoiding problems such as loosening and slippage, and ensuring that the rotational power of the blades is transmitted to the rim 19 completely synchronously.

[0029] Multiple sets of high-performance permanent magnets 16 are evenly distributed on the rear bearing cap 29, and a matching coil 20 is fixedly installed on the outer side of the rim 19, forming a high-speed relative motion between the two. Based on the principle of electromagnetic induction, the coil winding continuously cuts the magnetic field lines of the permanent magnets 16, inducing the generation of alternating current. This process directly converts the pressure energy that is wasted in traditional valves into usable electrical energy, completing the initial recovery of energy and realizing energy reuse from the source, breaking the limitation of traditional valves that "only consume energy and do not generate electricity".

[0030] (II) Rectification and Energy Storage Principle: Unstable alternating current (AC) is supplied to the generator controller, where it is converted to direct current (DC) by an internal rectifier module. The voltage is then precisely regulated by a voltage regulator module to stabilize the output voltage within a preset range, preventing voltage fluctuations from damaging downstream equipment. The processed, stable DC power is stored in a battery bank, which serves as both an energy buffer and a reserve. This battery bank stores temporarily unused electrical energy, preventing secondary waste, and provides stable support to the power supply system during periods of fluctuating fluid pressure or insufficient power generation, ensuring continuous and stable operation of the power generation system and achieving dynamic matching between power generation and consumption.

[0031] (III) Built-in hydraulic-spiral groove coupled angle adjustment structure: The core integrated valve for residual pressure power generation needs to simultaneously meet the dual requirements of throttling regulation and residual pressure power generation. The installation angle of blade 23 is a key parameter connecting these two functions—the angle directly determines the magnitude of fluid resistance, affecting the pressure and flow regulation effect, and also determines the pressure energy capture efficiency, which is related to power generation efficiency. Traditional regulation structures suffer from drawbacks such as slow response, low precision, and high energy consumption, making them unsuitable for dual functional requirements. To address this, a built-in hydraulic-spiral groove coupled angle adjustment structure was developed. Through precise coupling of hydraulic drive and mechanical transmission, the angle of blade 23 is achieved with high precision and continuous adjustability, balancing regulation performance and power generation efficiency.

[0032] (iv) The principle of integrated hydraulic drive and spiral groove transmission technology: The adjustment structure is integrated inside the main shaft 24 and consists of two parts: a hydraulic drive module and a spiral groove transmission module. It has a compact structure that does not occupy external space and provides efficient and reliable power transmission.

[0033] The hydraulic drive module, centered on a built-in hydraulic cylinder, is integrated into the inner cavity of the main shaft 24, reducing external connecting parts and improving structural stability and sealing. High-pressure hydraulic oil enters the oil chamber 47 through a dedicated oil circuit, pushing the piston 46 to slide smoothly and linearly along the main shaft axis. Equipped with a high-performance compression spring, it is always in an elastically tightened state, achieving buffering and limiting the movement of the piston 46, preventing impact damage to the structure, and enabling the piston 46 to automatically reset, balancing the forces on both sides, and ensuring smooth and controllable hydraulic drive.

[0034] The precision helical groove 51 on the inner ring of the helical gear 30 has its pitch and lead optimized and calculated, achieving a micron-level fit with the slider 41. The hemispherical cylindrical pins 50 at both ends of the slider 41 are embedded in the helical groove 51 to form a tight sliding fit, precisely converting the linear displacement of the slider 41 into the circumferential rotation of the helical gear 30. The helical gear 30 meshes with the blade gear 42 with high precision and strictly controlled clearance, ensuring stable and reliable power transmission. The rotation of the helical gear 30 synchronously drives the blade gear 42 to rotate, causing the blade 23 to rotate around its own axis, achieving real-time and precise adjustment of the blade installation tilt angle.

[0035] (v) Adaptive adjustment of operating conditions: Without manual intervention, the blade angle is automatically adjusted to 23 degrees according to on-site requirements, adapting to complex working conditions.

[0036] When the operating conditions require reducing the valve regulation load and lowering system energy consumption, the hydraulic control system increases the oil supply pressure. The hydraulic thrust is greater than the spring resistance, and the piston rod 49 drives the slider 41 to move, which in turn drives the helical gear 30 to rotate. This reduces the contact area between the blade 23 and the fluid, thereby reducing the load on the blade 23 and the energy consumption for power generation. Simultaneously, the valve regulation load is reduced to meet the low energy consumption requirements.

[0037] When the operating conditions require increased regulation and improved power generation efficiency, the hydraulic system reduces the output pressure, and the spring elastic force pushes the piston 46 and slider 41 to move, driving the helical gear 30 to rotate in the opposite direction, increasing the contact area between the blade 23 and the fluid, enhancing the pressure energy capture efficiency, improving the unit's power generation capacity, and at the same time enhancing the valve regulation force to meet the high pressure and high flow regulation requirements.

[0038] Achieving an optimal balance between regulation function and power generation efficiency significantly enhances the valve's adaptability and practical value.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An adaptive blade adjustment device, characterized in that: include spindle; The impeller seat is fixedly sleeved on the outside of the main shaft; Multiple blades are evenly arranged around the impeller seat and can rotate around their own axis; Multiple blade gears are rotatably disposed inside the impeller seat to form a blade gear set and are connected to the bottom ends of the multiple blades. A hydraulic screw drive mechanism, located inside the main shaft, is used to drive the blade gear set to rotate; And an adaptive control module; The hydraulic screw transmission mechanism includes a hydraulically driven slider and a helical gear with a helical groove inside that cooperates with the slider. The hydraulic screw transmission mechanism converts linear displacement into rotational displacement and drives the blade gear set to synchronously and steplessly adjust the angle of all blades. The adaptive control module includes a sensing and acquisition unit, a signal processing unit, and an execution unit. The adaptive control module acquires the pressure, flow rate, and velocity of the target fluid, processes them, and feeds them back to the hydraulic screw drive mechanism to execute adjustment commands. Based on the adjustment load, system energy consumption, and power generation efficiency, the module adaptively increases or decreases the contact area between the blades and the fluid.

2. The adaptive blade adjustment device according to claim 1, characterized in that: The main shaft is provided with an angular contact ball bearing and a radial ball bearing I at one end away from the slider, and a radial ball bearing II at the other end of the main shaft. Each bearing is provided with a bearing cap and a skeleton oil seal on its outer side. The adaptive blade adjustment device is connected through the bearing and the valve housing.

3. The adaptive blade adjustment device according to claim 1, characterized in that: The impeller seat is fixedly connected to the main shaft by a flat key. The impeller seat is provided with multiple mounting holes in the circumference. A rotating disk is fixedly provided at one end of the blade near the blade gear. The rotating disk cooperates with the mounting holes. The blade gear is connected to the rotating disk by bolts.

4. The adaptive blade adjustment device according to claim 1, characterized in that: The hydraulic screw transmission mechanism also includes a cylinder cover fixedly mounted on one end of the main shaft. The cylinder cover and the main shaft form an oil chamber. A piston is slidably mounted in the oil chamber. A piston rod is fixedly mounted on the end of the piston away from the cylinder cover. The slider is detachably mounted on the end of the piston rod away from the piston.

5. The adaptive blade adjustment device according to claim 1, characterized in that: The end of the slider is fixedly provided with a hemispherical cylindrical pin, and the inner sidewall of the helical gear is provided with a spiral groove, and the hemispherical cylindrical pin is engaged with the spiral groove.

6. The adaptive blade adjustment device according to claim 1, characterized in that: The main shaft has an oblong through hole, and the slider is confined within the oblong through hole and slides axially along the main shaft.

7. The adaptive blade adjustment device according to claim 4, characterized in that: The main shaft is equipped with a spring located on the side of the slider away from the oil chamber. The spring is used to drive the piston and the slider to automatically reset, forming a bidirectional force balance with the hydraulic thrust in the oil chamber.

8. The adaptive blade adjustment device according to claim 2, characterized in that: The end of the blade away from the rotating disk is fixedly connected to the rim by a positioning pin. A permanent magnet for generating electricity is provided on the outer side of the rim, and a coil connected to the valve housing is provided on the outer side of the permanent magnet.

9. A method of using an adaptive blade adjustment device, comprising using an adaptive blade adjustment device as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. Parameter acquisition: The pressure, flow rate, and flow velocity status parameters of the fluid are acquired in real time through the sensor acquisition unit. S2. Signal processing and comparison: Using the signal processing unit, the acquired parameters are compared with the preset target value to determine the deviation and generate adjustment instructions; S3. Perform adjustment: The execution unit drives the hydraulic screw transmission mechanism according to the adjustment command to complete the stepless adjustment of the blade angle; S4. Real-time feedback: Collect the adjusted fluid parameters and feed them back to the signal processing unit; S5. Closed-loop re-adjustment: Based on the feedback parameters, the adjustment effect is checked, and the blade angle is dynamically corrected until the parameters are stable.

10. The method of using the adaptive blade adjustment device according to claim 9, characterized in that: When it is necessary to reduce the regulating load and lower system energy consumption, the hydraulic oil supply pressure is increased, and the hydraulic screw transmission mechanism drives the blades to rotate, reducing the contact area between the blades and the fluid. When it is necessary to increase the regulating force and improve power generation efficiency, the hydraulic oil supply pressure is reduced, and the hydraulic screw transmission mechanism drives the blades to rotate in the opposite direction, increasing the contact area between the blades and the fluid.

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