65 results about "Wind force" patented technology

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.

[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.

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 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 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 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.

The invention relates to the technical field of gearbox testing, and particularly discloses a reliability testing device and method based on a wind power yaw gearbox, and the device comprises a connecting mechanism, and the outer side of the connecting mechanism is provided with a first testing mechanism and a second testing mechanism which are used for simulating the shaking and pushing of wind power fan blades. According to the invention, force is applied to the rotating shaft along the radial direction of the rotating shaft through the first testing mechanisms which are arranged in the annular array, so that the rotating shaft generates radial displacement to simulate the force application condition of the wind power fan blades on the wind power gear box when the wind power fan blades are subjected to the wind force which is laterally blown to the wind power fan blades and fit the actual stress condition of the wind power gear box, thereby improving the test trueness and improving the test efficiency. Therefore, the reliability of the wind power gear box can be more fully tested, the condition that the wind power fan blades apply force to the wind power gear box when the wind power fan blades are subjected to wind power directly blowing to the wind power fan blades is simulated through the second test mechanism, and the test trueness is further improved.

The utility model provides a height-adjustable noise measuring instrument, which relates to the technical field of noise measurement, and comprises a bottom plate, the top of the bottom plate is fixedly connected with a mounting rack, the inner side of the mounting rack is rotatably connected with a lifting assembly, and the outer side of the lifting assembly is fixedly connected with a clamping assembly; according to the height-adjustable noise measuring instrument, the pull rod is pulled to drive the clamping tooth block to move, so that limitation on the circular gear is relieved, the rack is pushed to enable the sliding block to drive the rack to move in the sliding groove, the rack is attached to the measuring instrument body to clamp the measuring instrument body, and the height of the measuring instrument is adjusted. The pull rod is loosened, so that the spring drives the pull rod to reset, the clamping tooth block limits the gear, the rack is prevented from deviating due to the influence of external force, shaking caused by the influence of wind power at a high position can be prevented, shaking can be prevented by clamping the measuring instrument body during height adjustment, and the safety is improved.

A Dampening system for dampening a movement of a tower of a wind turbine is provided including a string for being attached to the tower for applying a pulling force to the tower. The dampening system further includes a pulling device for providing a defined pulling force onto the string and a controlling device for controlling the pulling device. A method for dampening a movement of a tower of a wind turbine is also provided.

The utility model relates to wind power generation equipment with improved track moving mechanisms. The wind power generation equipment comprises an annular guide rail and a plurality of track moving mechanisms sliding on the annular guide rail, the track moving mechanism comprises a frame plate; a lift blade; a pulley; the stress adjusting part comprises a first gear, a second gear, a driving motor, a wind direction sensor and a PLC, and the first gear is connected with the lift force blade and arranged on the lower side of the frame plate; the driving motor is installed on the lower side of the frame plate, an output shaft of the driving motor extends downwards and is rotationally connected with the second gear, and the second gear is meshed with the first gear. Through cooperation of the stress adjusting piece, the driving motor, the gear, the variable-pitch bearing, the wind direction sensor and the PLC, the capacity of sensing the wind direction can be achieved, the windward side of the lift force blade can be automatically adjusted, the lift force blade has the better self-adaptive adjusting capacity, and under the condition that the wind speed suddenly changes or the wind direction frequently changes, the lift force blade can automatically adjust the windward side of the lift force blade. And the attitude adjustment of the lift blades can be quickly responded.

The invention belongs to the technical field of design, installation and adjustment of main bearings of wind generating sets, and discloses a quasi-statics calculation method for pre-tightening force of asymmetric back-to-back tapered roller bearings of a wind power main shaft. And solving the relative displacement of the inner ring and the outer ring of the bearing under the multi-load working condition by virtue of bearing analysis software Romax. Based on the relative displacement, the internal geometrical relationship, the material attribute and the contact deformation characteristic of the bearing are deeply combined, and a dominant quantitative correlation model between the axial pretightening force and the actually measured / simulated displacement is established through multi-physical field coupling relationship analysis. By using the model, the optimal pre-tightening force values required by the large tapered roller bearing and the small tapered roller bearing which are used in pairs in the wind turbine generator main shaft system are reversely calculated. According to the method, a systematic solution with theoretical support is provided, the pre-tightening force setting accuracy and calculation efficiency are remarkably improved, and a key calculation basis is provided for reliable design of a wind power main shaft bearing system and pre-tightening force optimization regulation and control.

The invention relates to the field of bridge damage detection, in particular to a bridge bearing damage detection method and system based on deflection monitoring. The method comprises the following steps: firstly, acquiring deflection data, wind speed data, wind pressure data and vibration frequency data of different detection positions of a bridge at each moment, and according to the wind speed data and wind pressure data of a target detection position at a target moment and a serial number value corresponding to the target moment, combining the deflection data and the vibration frequency data; obtaining the adjustment deformation degree of the target detection position at the target moment, and obtaining a damage characteristic value of the target detection position according to the fluctuation of the adjustment deformation degree of the target detection position at each moment; according to the difference of the damage characteristic values of the detection positions, the damage possibility of each detection position is obtained, and bearing damage of different positions of the bridge is detected based on the damage possibility. The influence of the wind power effect on bridge bearing damage detection can be eliminated, and the accuracy of bridge damage position detection is improved.

In a low-wind-speed environment, a wind collecting wind wheel captures tiny wind power, an outer blade of the wind collecting wind wheel is fixed to a main shaft through a support, the outer blade rotates to drive the main shaft to rotate under the action of wind power, and meanwhile an inner blade starts to rotate in response to the wind power. The transmission gear on the inner blade is meshed with the main shaft gear, and rotating force generated by rotation of the inner blade provides additional rotating force for the main shaft. Meanwhile, the telescopic blades of the main wind wheel are unfolded immediately when sensing initial wind power, the wind area is increased, and the acting force of wind on the main shaft is further enhanced. Through mutual cooperation and cooperative work of the wind collection wind wheel and the main wind wheel, the fan can be quickly started in a low-wind-speed environment, and the capture and response efficiency of the generator to low-wind-speed wind energy resources is improved. In a high-wind-speed environment, the auxiliary blades of the telescopic blades contract relative to the main blades, the wind area is reduced, the rotating speed of the main wind wheel is effectively adjusted, and the condition that the main wind wheel enters a stall state due to too high rotating speed is avoided.

The invention discloses a portable high-rise building rapid escape device which comprises a fixing frame, a warning assembly, an anti-swing assembly and a slow descending assembly, a supporting pulley is arranged on the fixing frame, a first hook chain is arranged on the supporting pulley, a descending frame is arranged below the supporting pulley, and two damping pulleys are arranged below the supporting pulley; the warning assembly is used for reminding downstairs personnel of dangerous cases; the anti-swing assembly is used for preventing the descending frame from inclining due to wind power; and the slow descending assembly is used for preventing the descending frame from descending at a higher and higher speed. Through the warning assembly, when the descending frame descends, a pulley in a damping pulley enables a rotating shaft to drive a half gear to rotate, the half gear and a second gear are intermittently meshed to enable the second gear to rotate, then a torsional spring can enable the second gear to reset, a searchlight can swing in a reciprocating mode, visual stimulation to downstairs personnel is strengthened, meanwhile, the warning range is expanded, and the safety of the downstairs personnel is improved. And more downstairs areas are covered, so that escapers can be rescued in time after falling down.

The utility model discloses a self-adaptive adjusting mine ventilation air window device which comprises a window frame, a plurality of blades are rotationally installed in the window frame through rotating shafts, and the blades are parallel to one another and achieve linkage through connecting rod mechanisms arranged on the rotating shafts of the blades. A pull rod capable of moving in the vertical direction is arranged at the bottom of the window frame, a push rod is hinged between the pull rod and the connecting rod structure, and the opening area of the blades changes along with the displacement of the pull rod. The wind power generation device has the beneficial effects that the arranged wind shield can conduct self-adaptive displacement along with the wind power, the sliding sleeve at the bottom of the wind shield can synchronously move along with the wind shield to extrude the pull rod, the pull rod moves upwards when the wind power is increased, and the opening area of the blade is adjusted to be small through cooperation of the push rod and the connecting rod structure; therefore, the effect that the air window opening is adaptively adjusted along with wind power is achieved, the problem that the wind power in local areas in a mine is too large or too small is effectively avoided, and dynamic balance of air pressure in the mine is maintained.

The invention discloses a crown block walking mechanism and a walking control method, and relates to the field of crown block equipment. When a walking part walks and moves on a main beam along a rail part, a limiting and locking wheel set is supported on the rail part in a rolling mode through a rolling face of the limiting and locking wheel set to provide lateral and vertical rolling limiting effects for the walking part; the stability of installation, connection and walking of the walking part on the rail part is improved, the situation that the walking part is affected by wind power and shaking of the rail part and deviates relative to the rail is prevented, the running stability and the moving positioning precision of the walking part are improved, the walking part can be prevented from overturning and falling from the rail part, and the using safety of the crown block is improved; when the walking part statically stays on the track part in the braking state, the limiting and locking wheel set can be adjusted to enter the locking state, and the walking part is positioned and locked on the track part, so that the stability of the walking part statically locked on the track is improved, and the walking part is prevented from sliding and displacing on the track part under the influence of wind power and shaking of the track part.