91 results about "Wind force" patented technology

The invention provides a wind generating set main shaft bearing interference magnitude adjusting device and method. The wind generating set main shaft bearing interference magnitude adjusting device is used for being installed in a wind generating set main shaft and comprises a center supporting assembly; the expansion force applying assembly is installed on the center supporting assembly, the expansion force applying assembly is provided with an expansion force applying part, and the expansion force applying part is used for applying expansion force for increasing the shaft diameter to the inner wall of the main shaft of the wind generating set; and the expansion force maintaining assembly is installed on the center supporting assembly, the expansion force maintaining assembly is provided with an expansion force maintaining part, and the expansion force maintaining part is used for keeping the shaft diameter of the main shaft of the expanded wind generating set unchanged. The problem of ring running of the main shaft bearing can be solved, and better execution performance is achieved.

The invention belongs to the technical field of additive manufacturing equipment manufacturing, and particularly relates to a wind field detection device for additive manufacturing equipment, which comprises a transverse moving part, and a guide part is arranged on the left side of the transverse moving part; a wind power detection component is arranged at the top of the movable base; the movable base comprises a bearing chassis, and a girdling groove is formed in the lower surface of the bearing chassis. The wind sensor is driven to perform free plane sliding motion in the wind power detection equipment through the transverse moving part, the guiding part and the moving base, so that wind power at different point positions is tested, and in the wind power testing process, the moving base can be tightly attracted to the upper surface of the long sliding rail through the magnetic force of the built-in magnetic ring, so that the wind power detection equipment is more convenient to use. A reinforcing effect is achieved on the moving roller which freely slides, so that the problem that the wheel body at the bottom of the equipment is easy to slip, even shift or topple under the action of wind power when the wind power of a tested wind field is relatively large is avoided.

The invention relates to the technical field of wind power generation tests, and discloses a wind power tower load loading test device and an evaluation system.The wind power tower load loading test device comprises a test bed, a loading structure and a load actuation structure; by arranging the loading structure and the load actuating structure, vertical axial force, bending moment, horizontal shearing force and torque can be applied to a test piece at the same time, and the test device is closer to the actual stress working condition compared with a traditional loading mode, so that the accuracy and reliability of test data are improved; the first actuator is arranged perpendicular to the upper end face of the loading piece so as to simulate the axial load and bending moment effect borne by the wind power tower in the operation process. The second actuator is arranged perpendicular to the side face of the loading part so as to apply shearing force and torque, multi-dimensional combined loading is achieved, and mechanical property analysis of complex load combination is facilitated; the loading mode is controlled through the actuator, the controlled and accurate load applying process is achieved, manual intervention is reduced, and the test efficiency and consistency are improved.

[Problem] To provide a power generation system having a small number of components and a simple structure. [Solution] In a power generation system EPS, a first compartment 3 and a second compartment 4 provided in a main structure 1 are partitioned by first and second one-way throttle valves 5 and 6. Provided in a boundary part between the two compartments is a rotary shaft 7 rotatable between a first transition position and a second transition position in each of which up-and-down positions are reversed. The first compartment 3 is heated by a heat source and rotates around the rotary shaft 7 due to a weight difference based on a flow of a gas caused by differential pressure between the first compartment 3 and the second compartment 4. Power generation uses one or both of the flow of the gas (wind force) and rotational force occurring on such occasion.

The embodiment of the invention provides an aerostat, an aerostat air operation control system and a wind power generation device, and the aerostat comprises an aerostat body which is in a streamline design, and the two ends of the aerostat body form a large head end and a small head end respectively; the steering part is arranged below the floating body, and the floating body can rotate around the steering part along with the change of the wind direction; the lifting force adjusting part is arranged above the floating body, the position of the lifting force adjusting part changes along with the change of the wind direction, and the lifting force adjusting part always has upward pulling force on the floating body. The lifting force adjusting part can adjust the pulling force on the floating body in real time according to the change of the wind force and direction, so that the floating body is always kept at a stable height and posture, meanwhile, the steering part enables the floating body to flexibly cope with the change of the wind direction, and the floating body is prevented from shaking or inclining due to the sudden change of the wind direction.

The present application provides a blade assembly and a wind power generation device. The blade assembly comprises a mounting shaft and a blade connected to the mounting shaft. The blade has opposite first and second surfaces along the circumferential direction of the mounting shaft. The first surface is recessed toward the second surface to form a force-bearing groove configured to bear wind impact, so that the blade assembly rotates. The torque of the blade Mθ=F0 × L=cos2 θFwind × L, where F0 is an equivalent resultant force applied to the blade, L is a moment arm, θ is a rotation angle, and Fwind is an equivalent wind force when θ is 0 degrees. The power of the blade P=Mθ × w=F0 × L × w, where w is an angular velocity. A discharge hole is provided at the bottom of the force-bearing groove, and is disposed near the mounting shaft and used for discharging air, so that the position of the equivalent resultant force is away from the mounting shaft, thereby lengthening the moment arm, increasing the torque, and improving the power.

A gear speed change device. The gear speed change device comprises a first planetary gear train (100). The first planetary gear train (100) comprises a first ring gear (101), a first planetary carrier (102), first planetary gears (103), a solar idle gear (104), and a planetary idle gear (105). The planetary idle gear (105) and the first planetary gears (103) are all mounted on the first planetary carrier (102); each first planetary gear (103) comprises a pinion (103a) and a large gear (103b) coaxially connected to the pinion (103a); the planetary idle gear (105) and the pinion (103a) are both engaged with the inside of the first ring gear (101) and are both engaged with the outside of the solar idle gear (104); the pinion (103a) can float along the radial direction thereof relative to the first planetary carrier (102), and the maximum radial floating amount of the pinion (103a) is greater than the maximum radial floating amount of the planetary idle gear (105); and the large gears (103b) of at least two first planetary gears (103) are arranged in a staggered manner in the axial direction, and projections thereof on a plane perpendicular to the axial direction overlap with each other. The gear speed change device has a relatively high torque load density, and can give consideration to a small volume, a large transmission speed ratio and a high torque load capability.

The invention relates to the technical field of wind power generation, and provides a braking device, a position adjusting system and a wind generating set, and the braking device comprises a gear braking part, a braking pressing block and an adjusting assembly. The gear brake part is in meshed connection with a to-be-braked structure; the brake pressing block is provided with a first pressure-bearing face and a second pressure-bearing face which are oppositely arranged, and the first pressure-bearing face abuts against or is separated from the gear brake part. The adjusting assembly is connected with the second pressure bearing face and used for adjusting the distance between the adjusting assembly and the gear braking piece. In this way, braking force can be provided for the to-be-braked structure through the gear braking part, then the to-be-braked structure can be prevented from moving relative to the braking device, and therefore the braking force provided for the to-be-braked structure can be increased. Therefore, the braking effect of the braking device on the to-be-braked structure can be improved, and the reliability of the braking device can be improved.

The Magnus roller of known type - when used alone - is altered in its reactive resultant by redirecting a wind coming from the front, a wind current or a driving wind (when mounted on a vehicle) or the wind currents composed of both, so that a sideways shearing movement does not result as before, but a movement exactly opposite to the wind coming from the front, whereby, however, due to partial covering at the front, the yield is initially less than the force of the sideways shearing before. When mounting multiple Magnus rollers on a single drum, we must consider the additional wind generated by the rotation of the rotating drum (which is cranked by the rollers) in the half facing the oncoming wind. This results in a combined effect of both winds, which must be addressed by adjusting the covers and deflecting guide plates or by further rotating the drum. This is achieved through automatic control depending on the roller position. Since the rollers on the rear side of the rotating drum move in the opposite direction, the (rotational) wind there comes from, for example, an oblique angle above, while on the front half of the drum, with the same oncoming wind, the (rotational) wind comes from an oblique angle below. Accordingly, the feeds / deflections and opening points must be adjusted, or the rear section, in the second...Half of the roller should be adjusted to face only the oncoming wind. The onshore wind must be blocked on the rear half of the roller by a side shield on each roller. Alternatively, by opening an upper guide plate (if applicable), only a portion of the downward-approaching wind (resulting from the roller's rotation) can be utilized. By utilizing the absorption of solar heat stored in the Brownian motion of molecules, which occurs during flows on the laminar half, by means of flow-induced alignment of these molecules not irregularly in all directions, but rising in the direction of flow, a good additional suction is added, which strengthens the resultants of the rolls and thus also accelerates the rotation of the roll.

The application discloses a kind of friction plate product grade anti-sliding performance torsion test equipment, it is related to wind power generation technical field;Friction plate product grade anti-sliding performance torsion test equipment second clamping piece is rotatable relative to first clamping piece around vertical direction axis;Pressing device is used to apply vertical downward pressing force to second clamping piece;Loading device is used to apply push-pull force to second clamping piece;Detection device is used to detect the pressure information, push-pull force information and displacement information of second clamping piece;Data processing device is used for data processing according to received information.The friction plate product grade anti-sliding performance torsion test equipment provided by the application can be used to simulate the pressure and torsion force suffered by the to-be-tested product under actual use state, and the product application level performance parameters can be obtained to better guide the design optimization related to the to-be-tested product.

The invention discloses a low-wind-speed vertical-axis wind turbine and a variable-pitch mechanism and an assembling device thereof, and belongs to the technical field of wind power generation. The device comprises arm rods, outer blades are fixedly connected to one ends of the arm rods, inner blades are arranged between the multiple arm rods of adjacent mounting pieces, and variable pitch mechanisms used for adjusting the angles of the inner blades are arranged in the arm rods; the composite design of lift force type outer blades and resistance type variable propeller inner blades is fused, the outer blades adopt efficient lift force airfoils, the outer blades serve as main force for capturing wind energy, and after the wind speed is higher than the cut-in wind speed, the wind wheel is driven to rotate mainly depending on high-rotating-speed and efficient lift force generated by the outer blades, and the optimal wind energy utilization coefficient is pursued; in the low-wind-speed starting stage, the inner blades keep the maximum windward area through rotation, large starting torque is generated, and the low-wind-speed starting problem is solved; the device is suitable for installation and use in low-wind-speed areas.

The present application relates to the technical field of mechanical equipment, particularly to a vertical pump with a self-compensation thrust balancing device, comprising: a bearing mechanism, the bearing mechanism comprising a bearing base for bearing, a vertical pump body and a motor for driving the vertical pump body; a compensation adjusting mechanism for changing a damping angle according to a vibration amplitude of the vertical pump body and damping the vertical pump body; and a negative pressure transmission mechanism for self-adaptive adjusting of the damping angle of the compensation adjusting mechanism according to the speed of the motor driving end, wherein the negative pressure transmission mechanism converts the rotating force of the motor driving end into negative pressure wind power through the cooperation of a centrifugal locking assembly, an acceleration assembly and a valve locking assembly, and automatically adjusts the opening and closing of the valve locking assembly according to the size of the negative pressure, so as to adjust the damping angle of the compensation adjusting mechanism and improve the adaptability and stability of the device.

This invention provides a wind turbine blade retraction method based on wind force variations, belonging to the field of wind turbine blade retraction control technology. Its purpose is to achieve more efficient blade retraction for different blades while maintaining equipment balance and mechanical performance. The method includes: acquiring the blade pitch angle of each blade; obtaining the difference between the minimum blade pitch angle γ and the other two blade pitch angles α and β, respectively, as a first difference ε1 and a second difference ε2, where the first difference ε1 is not less than the second difference ε2; assigning an initial blade retraction speed to each blade based on the relationship between the first difference ε1, the second difference ε2, and a difference threshold δ, and then performing blade retraction; during the retraction process, adaptively adjusting the blade retraction speed based on the initial blade retraction speed according to wind conditions. This invention has the advantages of high blade retraction efficiency while maintaining equipment balance and reducing equipment wear.

Embodiments of the present application provide a kind of based on aircraft's throwing method, equipment, program product and storage medium, the method comprises: obtaining the attitude data of first aircraft when hovering at each target height;Target height includes multiple, and attitude data includes angular acceleration;For each target height, based on the angular acceleration of first aircraft at target height, the measured wind force moment that first aircraft is estimated, and based on the measured wind force moment, the local wind speed at target height is solved;Based on the local wind speed at multiple target heights, wind field model is established;Based on the real-time wind speed at the throwing height, the height difference between ideal delivery point and target drop point, and wind field model, the predicted offset of the to-be-throwing object in the delivery process is predicted, and the ideal delivery point is corrected based on the predicted offset to obtain the corrected delivery point;When the second aircraft carrying the to-be-throwing object reaches the corrected delivery point, the second aircraft is controlled to deliver the to-be-throwing object. Thus, the precise and high-robustness throwing task is realized.

The application provides a yaw hydraulic brake pad health state diagnosis method and related equipment, and relates to the technical field of wind power generation. After the actual hydraulic braking force value of the yaw hydraulic braking system in the target yaw direction braking process according to the first expected brake pressure or the second expected brake pressure is acquired, the actual friction coefficient value of the yaw hydraulic brake pad included in the yaw hydraulic braking system in the target yaw direction is calculated according to the actual hydraulic braking force value, the first expected brake pressure and the second expected brake pressure. Then, the actual friction coefficient value calculated is subjected to brake pad health diagnosis according to the factory friction coefficient range of the yaw hydraulic brake pad, and the actual health state result of the yaw hydraulic brake pad is obtained. Thus, the actual braking capacity of the yaw hydraulic brake pad is monitored in real time and effectively in the manner of driving the yaw hydraulic braking system to brake, and the health condition of the yaw hydraulic brake pad is diagnosed in time.

The present disclosure relates to a method and a device for controlling a device (150) for sailing a wind-engaging unit (101) of a wind-propelled arrangement (100) of a vessel (1), the wind-propelled arrangement (100) comprising:-a wind-engaging unit comprising at least one movable part (120), and-a base (20) connected to the wind-engaging unit (101) and to a body of a marine vessel, and wherein the wind-engaging unit (101) comprises at least one movable part (120), and wherein the movable part (120) is movable relative to the base (20). The method comprises: determining (S101) a wind speed (TWS; TWS) experienced by the wind joining unit (101); aWS), determining (S102) a wind speed (WS; tWS is carried out; aWS) exceeds one or more threshold values (T) determined for the wind engagement unit (101); and if so: controlling (S103, S101) at least one movable portion (120) of the wind engagement unit (101) to displace relative to the base.

The invention relates to the field of wind power generation, in particular to a wind power generation system. Compared with a traditional wind power generation system, the fan blade capable of changing the angle is designed, the angle of the fan blade is perpendicular to the wind direction in the downwind process, and therefore the stress area is increased, and rotation is accelerated; when rotating against wind, the fan blades are parallel to the wind direction, so that wind resistance is reduced, speed loss is reduced, and rotating speed loss caused by speed reduction is prevented; and a brake device is further designed, speed reduction can be conducted when the fan blades are overspeed, and the situation that the generator is damaged due to too large generated power is prevented.

The invention discloses a door and window installation adjusting device and a using method thereof. The door and window installation adjusting device comprises sliding wheels, a working box is fixedly connected to the tops of the sliding wheels, a driving lifting mechanism is arranged at the top of the working box, a lifting mechanism is arranged at the top of the driving lifting mechanism, and a return mechanism and an anti-rotation mechanism are arranged at the bottom of the lifting mechanism. According to the device, when a door and window shakes and misplaces due to large wind power, a first magnetic block and a second magnetic block are misplaced during rotation through the wind power, the elasticity of a first spring is restored, meanwhile, a pressure roller extrudes an extrusion plate, an air bag is extruded, air in the air bag is guided into an adjusting box through a connecting pipe, and a second spring is stretched; and meanwhile, when a second spring is stretched, a connecting frame is pushed, then a deviation rectifying plate is reversely pushed, a rotary limiting shaft can be reversely pushed when rotating, the resistance of the rotary limiting shaft during rotating is increased, and therefore the auxiliary return function can be achieved when the door and window rotate, and the door and window is prevented from rotating during rising.

The utility model provides an easy dismantle's house support structure, including support bottom plate, vertical fixed on the support bottom plate's sleeve pipe, be located in the sleeve pipe inside can move up and down's stud, and fixed in the support top plate of stud top, stud outside is equipped with the push cover through the thread connection, can adjust the height of stud by rotating push cover, the bottom of sleeve pipe is equipped with the biasing force resistance device, and the biasing force resistance device includes connecting assembly and a plurality of support pieces, and connecting assembly is fixed on the sleeve pipe outer wall, and a plurality of support pieces are circumferentially interval arrangement on connecting assembly. The utility model is provided with the biasing force resistance device in the bottom of sleeve pipe, when the support structure is affected by the biasing force such as wind force, a plurality of support pieces can effectively disperse and transmit the stress, significantly improve the resistance ability to the biasing force, prevent the support structure from tilting and shaking, greatly improve the overall stability and security of house support structure.

This invention discloses a pressure-push type magnetic co-drive engine, including a support mechanism system, a rotating magnet disk, a drive magnet ring, several rotating magnets, several drive magnets, several lateral drive magnets, a magnetic pressure-push system, a magnetic clutch, a starter and gearbox, and an intelligent control system. This invention creates a permanent magnet pressure-push co-drive technology. Under the synergistic effect of the magnetic pressure-push system, all drive magnets accurately and periodically drive the rotating magnets to rotate. Simultaneously, the lateral drive magnets also drive the rotating magnets to rotate, thereby rotating the rotating magnet disk and the engine shaft, outputting highly stable, clean, and high-quality power. The entire power generation and usage process does not require the combustion of any fossil fuels such as coal, oil, or natural gas, nor does it produce any waste emissions. It also does not require the use of unstable natural forces such as wind power, hydropower, ocean waves, tides, geothermal energy, or solar energy.

The invention discloses a high-voltage insulating rod operation safety auxiliary tool and method, and relates to the technical field of electric power system safety tools and appliances, the tool comprises an air duct main body which is provided with a warning section and an air guide section, the warning section is contained in the air guide section, and the air guide section is arranged in the air duct main body; the air duct main body assists the safe operation of the high-voltage insulating rod by indicating the real-time wind direction and the real-time wind power; the connecting part comprises a first connecting assembly arranged on the air guide section and a second connecting assembly arranged on the warning section, and the first connecting assembly is movably connected with the second connecting assembly; the connecting part disconnects the first connecting assembly and the second connecting assembly when the real-time wind power reaches the set wind power, so that the warning section leaves the interior of the wind guiding section, and the warning section indicates that the real-time wind power reaches the set wind power. Therefore, the real-time wind power is indicated to reach the set wind power, and the safe operation of the high-voltage insulating rod is assisted by accurately indicating the real-time wind direction and the real-time wind power.

This invention relates to the technical field of wind power generation, and proposes an adaptive wind speed wind power generation method, system, and device. The method includes the following steps: acquiring radial distance data and wind speed data of each adjustable segment blade of the wind turbine; calculating the target angle of attack of each adjustable segment blade; calculating the deviation between the target angle of attack and the current angle of attack of each adjustable segment blade, converting it into the rotation angle of the actuator motor, and sending it to the corresponding actuator motor of each adjustable segment blade; controlling each actuator motor to rotate according to the rotation angle, thereby driving the corresponding adjustable segment blade to rotate. This invention automatically matches a larger angle of attack according to the wind force, effectively reducing fatigue damage while ensuring lift and power generation efficiency. When the wind speed is too high, a safe angle of attack can be used to reduce the risk of sudden changes in local load, aerodynamic stall, and extreme loads, thereby effectively improving safety and extending service life.

The embodiment of the application provides a range hood and a control method thereof, and relates to the technical field of range hoods. The range hood comprises: a fan assembly, the fan assembly comprising: an impeller and a motor for driving the impeller to rotate; a controller, the controller being connected with the motor and being used for controlling the motor to operate; a display, the display being connected with the controller; and the controller being configured to: determine a real-time wind force coefficient according to a smoke exhaust resistance coefficient and a real-time current of the motor, the smoke exhaust resistance coefficient being related to a current flowing through the motor and a rotating speed of the motor; and control the display to display the real-time wind force coefficient. The range hood provided by the embodiment of the application can determine the real-time wind force coefficient of the range hood according to the smoke exhaust resistance coefficient and the real-time current, and display the real-time wind force coefficient, so that the user can intuitively know the operating state of the range hood, and the use experience of the user is improved.

The application discloses a wind wheel surface dynamic thrust reduction method and device, equipment and storage medium, relates to the wind turbine generator control technical field, and includes: real-time monitoring of the current super-high altitude wind turbine generator; when it is judged that the current unit real-time power is greater than the threshold value, the rotating speed NP control and the rotating speed GP control are carried out; in the process of NP control, when it is determined that the dynamic rotating speed deviation reference value obtained based on the generator rotating speed is greater than the threshold value, whether the yaw angle error obtained based on the unit yaw angle is greater than the threshold value is judged, and a first judgment result is obtained; in the process of GP control, when it is determined that the dynamic rotating speed reference quantity obtained based on the tower front and rear acceleration is greater than the threshold value, whether the generator acceleration obtained based on the generator rotating speed is greater than the threshold value is judged, and a second judgment result is obtained; the pitch angle is updated based on the first judgment result and the second judgment result. The problem that the wind turbine generator cannot timely reduce the rotating speed under the extreme gust working condition and causes the unit shutdown can be effectively solved.