124 results about "Wind force" patented technology

The invention discloses a high-altitude parabolic positioning traceability analysis method and system, and particularly relates to the technical field of positioning traceability. Motion parameters of an object are calculated by adopting a multi-frame image analysis method, rotary motion is detected by utilizing a deep learning algorithm, if rotation exists, a Magnus effect compensation model is introduced to correct trajectory calculation, meanwhile, wind speed and wind direction data are collected in real time, airflow change is simulated in combination with a computational fluid dynamics model, and the influence of wind power on the trajectory is corrected. Based on the corrected trajectory data, the initial throwing position of the object is reversely deduced in combination with a building three-dimensional structure model, a target person in charge is determined, and a complete traceability report is generated by comparing an analysis result with a monitoring video, so that the accuracy and traceability of traceability analysis are ensured. The method can effectively reduce the calculation error caused by the rotation effect, wind field interference and other factors, improves the precision of high-altitude parabolic traceability, and provides a scientific basis for responsibility determination.

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 overload and unbalanced load detection, and particularly relates to a container weighing and overload and unbalanced load detection method and system, and the method comprises the steps: carrying out the curve fitting of the stress data of each corner of a container at all moments in a hoisting detection process, obtaining a peak value region and a valley value region, and obtaining the stress period measurement of each corner of the container; performing self-correlation analysis on the acceleration data of the container in each direction in the hoisting detection process, and determining the acceleration periodical measurement of the container; the influence degree of the wind speed data on the stress data and the acceleration data in the hoisting detection process is analyzed, and the wind power influence coefficient of the container in the hoisting detection process is determined; the average stress data of each angle of the container after compensation is obtained, the unbalance loading value of the container is obtained according to the moment balance principle, and overload and unbalance loading detection is conducted on the container. The invention aims to improve the precision of overload and unbalanced load detection of the container.

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.

The invention relates to the technical field of ship manufacturing, in particular to a ship sailing power assisting device which comprises a power assembly, a driving assembly, a power transmission assembly and a driving assembly. The power assembly comprises a base, a cavity formed in the inner wall of the base and a rotary drum installed at the end of the cavity; the power assisting assembly comprises a sleeve installed on the outer wall of the rotary drum, a power assisting piece arranged on the outer wall of the sleeve and a pushing piece installed in the sleeve; in the low-wind-speed environment, the power assisting part can be unfolded on the outer wall of the sleeve under the action of the pushing part, the fan blades on the power assisting part capture wind energy through the inner arc face and drive the rotary drum to rotate, energy consumed by rotation of the rotary drum is reduced, a generator is driven to generate electricity, power is supplied to a ship electric power system, and the load of a main engine is reduced; the power assisting part can be folded inwards under the action of wind power and tightly attached to the outer wall of the sleeve again, direct acting force of wind on the power assisting part during unfolding when the wind speed is too high is avoided, the risk that a ship inclines due to uneven stress is reduced, and sailing safety of the ship in the high-wind-speed environment is guaranteed.

A method and system for offshore wind power monitoring, which relate to the technical field of wind power equipment. The deformation amount of the blade is measured by a blade deformation measuring device, the rotational speed of the impeller is measured by an impeller rotational speed measuring device, the wind direction is measured by a wind direction measuring device, and the analysis module analyzes the deformation amount of the blade, the rotational speed of the impeller and the wind direction. Furthermore, the first wind force value is determined through the deformation amount of the blade, the second wind force value is determined through the rotational speed of the impeller, and by comparing the first wind force value and the second wind force value, the accuracy of the currently measured wind force value is determined. If the difference between the first wind force value and the second wind force value is less than a preset value, it is determined that the current wind force value is accurate enough.

[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 invention discloses wind power generation equipment with a measuring device, and belongs to the field of wind power generation. The wind power generation equipment comprises a wind power generator body, a cabin shell is arranged above the wind power generator body, a hub is arranged on the left side of the cabin shell, blades are rotatably connected to the outer surface of the hub, and a main shaft is fixedly connected to the right side of the hub; the main shaft penetrates through and is rotationally connected with the left side of the cabin shell, a pressure sensing device is slidably connected to the outer surface of the main shaft, a connecting column is fixedly connected between the pressure sensing device and the top of the inner surface of the cabin shell, and an electric push rod is fixedly connected to the bottom of the inner surface of the cabin shell. The pressure sensing device is arranged to detect the rotating stability of the main shaft, when the main shaft rotates unstably, the braking piece brakes the main shaft, and meanwhile, the angle of the blade can be adjusted to be parallel to the wind direction, so that pushing of wind power to the blade is reduced, and the effect of facilitating braking acceleration is achieved.

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.

The invention relates to the technical field of wind power generation, and discloses a vertical shaft speed increaser of a wind driven generator, which comprises a gear box, the inner wall of the gear box is rotatably connected with a driving gear, a wind power rotating rod is driven by wind power to rotate so as to enable the driving gear to rotate, and by utilizing the tooth number difference between the driving gear and a driven gear, the vertical shaft speed increaser of the wind driven generator is formed. The speed-increasing rotation of the driven gear is achieved, so that the transmission speed-increasing rod is driven to output power at a higher rotating speed, the requirement of the wind driven generator for the high rotating speed is efficiently met, meanwhile, external force impact can be effectively buffered through the arrangement of the downward pressing column and the buffer spring, damage of impact force to the gearbox is reduced, and the damping rod in the base further ensures equipment stability. The cooling fan accelerates air flow in the gearbox, heat is discharged through the hole groove, the internal temperature is effectively reduced, the filter screen blocks dust and impurities, the interior is kept clean, part damage caused by high temperature or impurities is avoided, and the stability and reliability of equipment are further improved.

The utility model relates to a suspension type blowing separation device applied to the field of paper feeding mechanisms, which comprises an air blower and a mounting pipe fixedly connected with an air outlet of the air blower, the outer surface of the mounting pipe is fixedly connected with two telescopic hoses, and one end, far away from the mounting pipe, of each telescopic hose is fixedly connected with a fixed pipe. The upper ends of the fixing pipes are fixedly connected with flange plates, the upper ends of the two fixing pipes are jointly and fixedly connected with an air collecting box, and by the adoption of the fixing pipes and other structures, when heavy or large number of corrugated paper is blown, the wind power of an air blower does not need to be increased, the electric push rod drives the shielding ball to move up and down, the caliber of the adjusting groove is shielded, and the air blowing efficiency is improved. The size of a gap between the shielding ball and the caliber of the adjusting groove is changed, air pressure generated when airflow passes through the gaps of different sizes is different, the effect of separating corrugated paper of different thicknesses and quantities from the paper feeding mechanism is achieved, and therefore the electric energy consumption of the air blower is effectively reduced.

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 utility model discloses gantry type hoisting equipment for ship assembly in the technical field of gantry hoisting, which comprises a hoisting gantry and a moving seat capable of sliding left and right on the hoisting gantry, a plurality of groups of upper traction chains are fixedly mounted on the lower surfaces of two sides of the moving seat, and a balance component is arranged between the upper traction chains. The balance assembly can sense the magnitude of wind power at the upper end of the upper traction chain in a multi-angle mode and can enable the upper traction chain to be stressed and balanced in the opposite angle according to output of an internal draught fan, the balance assembly comprises an installation box fixedly installed at the upper end of the upper traction chain, and air outlet nozzles are arranged on the installation box except the two sides, connected with the upper traction chain, of the upper end and the lower end of the installation box. The output air volume of each group of air outlet nozzles can be singly adjusted; the wind power difference of different angles at the upper end of the hoisting traction chain is sensed through the sensor, and the air outlet amount of the air outlet nozzle is controlled through the variable-speed fan, so that the periphery of the traction chain is balanced under the wind power effect, and the traction chain is prevented from shaking under the wind power effect.

The utility model provides a large-span light floating debris blocking row structure, which relates to the technical field of hydropower and water conservancy, comprises concrete foundations symmetrically arranged on two banks, and a steel wire cable is arranged between the concrete foundations, and is characterized in that a trash blocking net and roller floaters are sequentially arranged on the steel wire cable at intervals; the roller floater comprises a bearing fixedly arranged on the steel wire rope, and a plurality of wheel blades are arranged around the bearing. Through the design of the roller floaters, when the wind speed of the water surface is high, the roller floaters installed on the steel wire ropes can roll on the water surface under the action of wind power, the resistance of water flow to the wind speed is enhanced, and then wind power reduction is achieved.

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.

VAWT power machine, the efficiency of which is improved, characterized in that it consists of an inner surface ring and an outer ring of shell surface segments, preferably at least 2 opposite surfaces, which extends in the direction of rotation from a larger Distance to a small distance and are limited at the top and bottom by surfaces and thereby create a negative pressure by means of a nozzle effect. The negative pressure on the convex surfaces creates a force similar to an airfoil on the upper side, which generates a torque in the direction of rotation on the rotor. Furthermore, the flow on the concave surfaces generates a pressure force, which in part generates a torque in the direction of rotation. On the convex surface located on the opposite outer side of the rotation axis, a negative pressure and thus a torque in the direction of rotation is generated by the medium flowing past and the rotor rotating against the flow direction. By carrying the media flow in the direction of rotation and the pressure difference at the nozzle outlet, a torque is also generated partly transverse to the flow direction in the rear area (flow shadow).

The invention provides a wind power yaw brake pad hot-pressing die and a using method thereof, and relates to the technical field of wind power generation braking systems. According to the hot-pressing die for the wind power yaw brake pad, the technical balance of high efficiency, high precision and high adaptability is realized through multi-component collaborative design. The elastic assembly can effectively disperse the impact force in the hot pressing process, so that the forming precision and the surface quality are improved; and in the hot pressing process, the elastic assembly can compensate the shrinkage amount during material curing in real time through deformation, and continuous and stable pressure and uniform brake pad density in the pressing process are ensured. The heating assembly can achieve uniform temperature rise, uneven material performance caused by local overheating is avoided, the rejection rate is reduced, and the production efficiency is improved; the height of the elastic assembly can be adjusted through elastic stretching and retracting, the mold pressing requirements of brake pads with different thicknesses are met, the adaptability of the mold is improved, and the purpose that the same set of mold is adaptive to various product specifications is achieved.

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.