CN217976448U

CN217976448U - High-efficiency automatic angle-changing speed-regulating multi-blade wind wheel device

Info

Publication number: CN217976448U
Application number: CN202122292355.0U
Authority: CN
Inventors: 姜宝义; 姜立浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-12-06
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses a high-efficient automatic synchronization becomes multi-leaf wind wheel device of angle speed governing, wind wheel blade equipartition cartridge extends Zhou Zhoukong at wind wheel hub in, the installation is by the synchronization disc on wind wheel hub windward side terminal surface, spring adjusting nut, the spring guiding axle, the centrifugal force balance mechanism that the wear-resisting axle sleeve of guiding axle and spring assembly constitute (directly regard as the centrifugal body with the wind wheel blade, the deformation power of spring is the balancing force) and by joint bearing, the synchronizing mechanism that connecting rod and synchronization disc assembly constitute and the arbor by the wind wheel blade, the guide way on the wind wheel hub, the direction angle change mechanism that the wear-resisting axle sleeve assembly of wind wheel blade arbor constitutes, realize that the centrifugal force that the wind wheel blade produced at the wind wheel rotation in-process links to use centrifugal force balance mechanism's spring through the synchronizing mechanism intercorrelation. The wind wheel air guide sleeve is arranged on the windward side of the wind wheel hub to play roles of guiding flow, increasing acting, preventing dust and sealing, and a lubricating system consisting of a sealing ring, a wear-resistant shaft sleeve of a wind wheel blade shaft handle and a lubricant is further arranged to form the high-efficiency automatic synchronous variable-angle speed-regulating multi-blade wind wheel device. The wind generating set is applied to large, medium and small wind generating sets.

Description

High-efficiency automatic angle-changing speed-regulating multi-blade wind wheel device

Technical Field

The utility model relates to a wind energy and mechanical energy conversion equipment specifically are wind wheel device among wind generating set.

Background

The technology is continuously innovated and developed, the energy crisis is increasingly tense, and the demand of high-technology products such as new energy vehicles on energy is continuously increased. High efficiency, energy saving and environmental protection become the main direction of research, development and utilization of renewable energy sources, wherein the problem of fuel does not exist in the process of converting wind energy into electric energy, and solid waste or pollution cannot be generated. The principle of wind power generation at present is that wind power is utilized to drive a wind wheel in a generator set to rotate to drive a generator to rotate to generate electricity so as to convert wind energy into electric energy, and the wind power conversion rate of finally converting the wind energy flowing through the wind wheel into the electric energy is relatively very small through controlling, converting, storing and transmitting the electric energy! Therefore, the capability of the wind wheel to acquire wind energy mainly influences the generating efficiency of the wind generating set.

Wind wheels on the market at present mainly apply the traditional design theory technology of airplane propeller wing profiles. However, the technology has the following main error regions, taking the currently commonly used three-blade wind wheel as an example: the aircraft propeller wing profile is designed to be a lift wing profile, the root part is thick, wide and sharp, and the tip part is thin and narrow, so that stable lifting force can be generated in the rotating process, and the blades are prevented from being damaged due to vibration. However, the wind wheel on the wind turbine generator system is designed to convert wind energy into electric energy, so that the problem of balance lift force does not exist, and the analysis of the motion property from the perspective of the mechanical principle is essentially different. Secondly, the blade generates a rotation moment principle when facing the wind, and the width of the windward side of a certain point in the radial direction of the blade is in direct proportion to the linear velocity of the point, namely, the wider the blade tip part is, the larger the wind energy obtained by the blade tip part is, the larger the moment generated by the blade tip part is, so that the windward side of the blade tip part is designed to be larger as much as possible. However, the geometrical shape of the airfoil blades of the airplane propeller does not conform to the principle, and the design of the airfoil blades causes serious moment loss generated by the blade body and low wind energy utilization rate. Thirdly, the traditional theory holds that the power of a wind wheel is in direct proportion to the rotating shadow area of the blades and is irrelevant to the number of the blades or the windward shape of the blades. The wind wheel rotates because the rotating moment generated by the wind pressure born by the blades is larger than the resisting moment born by the wind wheel in the rotating process, so the stress of the blades is in direct proportion to the effective windward pressed area of the blades. Namely, under the same condition, the larger the windward side of the blade is, the larger the rotating moment is, and the more the number of the blades is, the more wind energy is obtained, and the wind wheel can rotate more easily.

At present, a mechanical variable angle system in the market adopts a weight hammer type centrifugal force principle to adjust the downwind angle of a wind wheel blade to change an angle (the windward side of the blade is parallel to the wind direction) so as to reduce the rotating speed of the wind wheel. However, the structure of the equipment is complex, the processing technology is complex, the volume of the wind wheel is large, the equipment cost is too high, the multi-blade wind wheel is difficult to realize by the technology, the technology is difficult to be applied to a large-scale wind driven generator, and due to the independent weight type centrifugal force principle, the centrifugal force and the gravity of the blades are superposed in the rotating process, the stress difference of the upper and lower blades in the vertical direction cannot be synchronously changed in angle, so that the rotating speed of the wind wheel is not stable, the vibration is large, and the service life of the equipment is shortened. Meanwhile, the wind driven generator which is applied to the market and has the defects that the action surface of the blade tip part of the wing-shaped blade of the airplane propeller is much smaller than the integral action surface of the blade, the wind speed is difficult to control when the wind speed is overlarge, the speed regulation range of the blade tip is limited, the wind speed application range of the wind driven generator is limited, and the wind wheel technology is difficult to additionally install multiple blades so as to fully utilize wind energy. In addition, the servo variable-angle system applied to the large-scale wind driven generator controls a servo variable angle through a yaw device, the blade variable-angle response is slow, the variable-angle fluctuation is large, the equipment structure is complex, the processing technology is complex, the size of the wind wheel is large, the equipment cost is too high, and the technology is difficult to realize a multi-blade wind wheel, so that the wind energy cannot be fully utilized.

Disclosure of Invention

Aiming at the defects and technical errors of the traditional design technology of the wind wheel, the design optimization, practical application and technical innovation are carried out. The utility model provides a high-efficient automatic multi-leaf wind wheel device of variable angle speed governing (can refer to 2020 year 6 month 8 day patent that same inventor submitted the application and accept No. 202021014757.X "a high-efficient multi-leaf wind wheel device of variable angle speed governing, this specification does following picture and text detailed description), centrifugal force and relative rotational speed proportional mechanics principle according to the rotatory production of centrifugal body, and according to blade windward side and wind direction corner cut at certain angle within range tangent angle big wind pressure to the rotatory doing work of wind wheel little more, when the corner cut reaches the maximum value vertical angle, the wind pressure is close to zero mechanics principle to the rotatory doing work of wind wheel, from this the utility model discloses a wind wheel device comprises fan-shaped indent blade, wind wheel kuppe, wind wheel hub, centrifugal force balance mechanism, synchro mechanism, direction variable angle mechanism and motor flange seat. The synchronous mechanism is formed by mutually connecting and assembling a connecting rod, a joint bearing and a synchronous disc. The centrifugal force balance mechanism is formed by mutually connecting and assembling a spring adjusting nut, a spring guide shaft, a guide shaft wear-resistant sliding sleeve and a spring, wherein a wind wheel blade is directly used as a centrifugal body, and the deformation force of the spring is used as a balance force. The guiding angle-changing mechanism is formed by mutually connecting and assembling a shaft handle of a wind wheel blade, a guiding groove on a wind wheel hub, a wind wheel blade sealing ring and a wear-resisting shaft sleeve of the shaft handle of the wind wheel blade. The shaft handles of the fan-shaped concave blades are uniformly inserted into the wind wheel hub, a centrifugal force balance mechanism, a guide angle changing mechanism and a synchronizing mechanism are integrally installed on the end face of the wind wheel hub and are mutually linked, a wind wheel guide cover is installed on the wind wheel hub to play the roles of guiding, preventing dust and sealing, and a lubricating system and a sealing system are further equipped to form the high-efficiency automatic synchronous angle-changing speed-regulating multi-blade wind wheel device. The wind wheel device is fixedly installed on a generator of a wind turbine generator through a motor flange seat, the centrifugal force change size generated by the rotation of a balance centrifugal body is controlled through a centrifugal force balance mechanism, the centrifugal body moves under the action of the centrifugal force, and the windward angle of fan-shaped blades is changed through the synchronous control of a guide angle changing mechanism and a synchronous mechanism, so that the wind pressure is controlled to apply work to the rotation of a wind wheel to adjust the rotating speed of the wind wheel. The wind deflector arranged on the hub guides the wind direction outwards from the center of the wind wheel to the tip of the fan blade to increase the work on the fan blade, and the wind wheel provided with a plurality of fan-shaped blades can improve the utilization rate of wind energy.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: the utility model provides a high-efficient automatic multi-blade wind wheel device of variable angle speed governing which the structure characteristics include: the fan-shaped blade cartridge of indent extends Zhou Zhoukong at wind wheel hub and installs a plurality of blades as required (structural design chooses for use the blade directly as the centrifugal body according to the attached embodiment), install centrifugal force balance mechanism on wheel hub (the deformation power of choosing for use the spring according to attached embodiment structural design is the balancing force), direction angle change mechanism and lazytongs and mutual associative link (realize that the centrifugal force that the blade produced passes through the mechanism and link directly to the spring on), the kuppe assembly is on the central hub of wind wheel windward side, be equipped with lubricating system and sealing system simultaneously, constitute the utility model discloses a high-efficient automatic angle change speed governing multi-blade wind wheel device, simple structure, automatic synchronization angle change control wind wheel rotational speed. The maximum rotating speed of the wind wheel can reach the rated rotating speed of the generator, namely the rotating speed of the wind wheel with larger wind speed reaches the set upper limit and is not increased any more, the guide angle-changing mechanism and the synchronizing mechanism control the synchronous angle-changing of the blades to ensure that the wind wheel has better dynamic balance, the wind wheel rotates stably, the vibration is reduced, and the service life is prolonged. Simultaneously the blade becomes the wind wheel cross section of high rotational speed behind the angle and diminishes, it is littleer to receive the wind resistance noise that diminishes, the utility model discloses a high-efficient automatic angle change accuse quick-witted leafy wind wheel device of speed, break traditional screw wing section fan blade design theory, can install a plurality of fan-shaped blades additional on the wind wheel as required, centrifugal force balance mechanism can the adjustment control wind wheel rotational speed, direction angle change mechanism and synchro mechanism cooperation centrifugal force balance mechanism adjustable control blade automatic synchronization upwind angle change control wind wheel rotational speed and safe and steady rotation, can reach no longer the hypervelocity behind the generator rated revolution, very big improvement generating efficiency, wide application is in big, in, among the small-size wind generating set, the structure that obtains fan-shaped blade through the analysis and optimization design to wind pressure flow field accords with the aerodynamics more, increase wind energy utilization ratio. The beneficial effects of the utility model include: 1) The automatic synchronous variable-angle speed regulation mode with a simple structure avoids a complex wind wheel servo variable-angle system; 2) The wind wheel has small starting wind speed and high acceleration, and the height of the matched tower can be reduced on the same scale; 3) The rotating speed of the wind wheel is controllable, the wind wheel runs stably and does not overspeed, the generator is directly driven to generate electricity, a complex acceleration system is omitted, and a complex overspeed braking system and an overload unloading control device are omitted; 4) The diameter of the multi-blade wind wheel is small, the volume of the wind wheel is smaller than that of the traditional three-blade wind wheel with the same grade, and the manufacturing cost is low; 5) The wind wheel has simple structure, easy realization of manufacturing and mounting processes and low failure rate.

The utility model discloses a high-efficient automatic multi-leaf wind wheel device of variable angle speed governing, fan-shaped indent blade is the structure of fan-shaped indent, and fan-shaped structure is that the blade on the wind wheel is by little grow, the narrow wide blade of point portion in root promptly to the outside direction blade windward active area of center pin handle department. The concave structure is a design structure that the windward side of the blade adopts concave arc, the fan-shaped structure of the blade can be designed into an integral fan shape, a progressive fan shape or a combined fan shape according to practical conditions as required, and can realize the mode that the windward area of the blade is continuously, intermittently and gradually increased from the center to the outer direction, and the concave radian can be designed into the size of the concave radian according to practical conditions as required. Referring to the embodiment of fig. 1 and fig. 2, the fan-shaped structure is that the windward acting area of the blades 101 on the wind wheel is increased from small to large from the center to the outside, the torque generated by the wind energy is multiplied, and a plurality of blades with narrow roots and wide tips are easier to mount on the hub. The concave arc 201 can store potential wind energy to improve the wind energy utilization rate, the windward side of the blade can also be designed into a plane structure, a convex arc structure or a combined structure according to actual requirements, and the blade 101 is made of stainless steel, carbon fiber, glass fiber reinforced plastics or other alloy materials or non-metal materials meeting the strength. The fan-shaped concave blades are directly uniformly distributed and inserted in the wind wheel hub as centrifugal bodies, can be linked with a centrifugal force balance mechanism, a guide angle changing mechanism and a synchronizing mechanism which are mutually selected and matched, can be assembled on the wind wheel hub in a modular integration manner, and can be provided with a plurality of blades as required.

The utility model discloses a high-efficient automatic multi-blade wind wheel device of variable angle speed governing, refer to example attached figure 1, wheel hub 102 adopts the integrated assembly structure form of aluminum alloy material components of a whole that can function independently processing, satisfies intensity light in weight, and relative with low costs. Other carbon steel structure metal materials or non-metal structure materials meeting the strength and the required corresponding structure size can be selected, and the casting integral forming process can be selected according to the requirement to realize quickness, simplicity and economization.

The utility model discloses a high-efficient automatic multi-blade wind wheel device of variable angle speed governing, centrifugal force balance mechanism, tension spring among the centrifugal force balance mechanism are equipped with tension adjusting nut adjustment tension control adjustment wind wheel rotational speed, also can match adjustable tensile attenuator or the independent centrifuge form of integrating each other, or are equipped with the form that the initial equilibrant of servo motor drive regulation. Referring to an example, as shown in figure 3, blades 301 are uniformly distributed and inserted into peripheral holes of a wind wheel hub 302 as centrifugal bodies, the shaft handles of the blades 301 can move and rotate in the radial direction in the peripheral holes of the hub 302, a first knuckle bearing 305 assembled at one end of a connecting rod 306 on a centrifugal force balance mechanism passes through a guide groove 503 (refer to figure 5 of the example) in a guide angle-changing mechanism and is fixed on the shaft handles of the blades 301, a second knuckle bearing 307 assembled at the other end of the connecting rod 306 is fixed on a synchronizing disc 308 of the synchronizing mechanism, a compression spring 312 is fixed on the hub 302 through the synchronizing disc 308, a tension adjusting nut 309, a guide shaft 310 and a wear-resisting sliding sleeve 311, so that the centrifugal force balance mechanism taking the spring 312 as a main body and other parts as auxiliary components is formed, the working principle of the wind wheel is that a circumferential rotating moment is generated by the wind force of the blades 301 with a certain wind-facing angle on the hub 302 under the action of steady wind force to enable the wind wheel to rotate stably, when the wind speed is increased in the rotating process of the wind wheel, the circumferential rotating moment acting on the blades 301 is increased to increase the rotating speed of the wind wheel, the centrifugal force generated by the blades 301 is increased, the blades move outwards along the radial direction on the hub 302, the first knuckle bearing 305 fixed on the shaft handle of the blades 301 moves outwards along the radial direction relative to the hub 302 and pulls the connecting rod 306, the second knuckle bearing 307 at the other end of the connecting rod 306 drives the synchronizing disc 308 of the synchronizing mechanism to balance the increase and change of the centrifugal force generated by the blades 301 through the guide compression spring 312 of the guide shaft 310, and when the wind speed is constant, the centrifugal force generated by the blades 301 is balanced with the compression deformation elastic force of the spring 312, and the centrifugal force balancing mechanism is in a balanced state. On the contrary, when the wind speed is reduced, the circumferential rotation moment acting on the blades 301 reduces the rotating speed of the wind wheel, the centrifugal force generated by the blades 301 is reduced, at this time, the compression deformation elastic force of the springs 312 is larger than the centrifugal force generated by the blades 301, the compressed springs 312 are expanded to drive the synchronous discs 308 of the synchronous mechanism to pull the connecting rods 306 through the guiding of the guide shafts 310, so that the blades 301 move inwards on the hub 302 along the radial direction, and when the wind speed is constant again, the centrifugal force generated by the blades 301 is balanced with the compression deformation elastic force of the springs 312, the centrifugal force balance mechanism is in a balanced state again. Meanwhile, the initial deformation force of a spring 312 on the centrifugal force balance mechanism is adjusted and set (the adjustment mode can be manually adjusted or servo and electrically adjusted) through a tension adjusting nut 309, the maximum stable rotating speed of the wind wheel can be adjusted and controlled to be equal to the rated rotating speed of the generator by matching with a guide angle changing mechanism and a synchronizing mechanism, the wind wheel does not overspeed any more, and therefore the structure of the grid-connected controller can be simplified, and the cost is reduced. The centrifugal force balance mechanism can select a damper with adjustable tension as a balance force according to the structural requirement, adopts the structural mode of an independent centrifugal body, can also select an independent small centrifugal body and a long torque to generate a large torque to match with a guide angle-changing mechanism and a synchronizing mechanism for a large-scale wind turbine generator to realize synchronous angle-changing speed regulation of the fan blades, can also select an initial variable force with an additionally-installed pilot spring for the large-scale wind turbine generator to conveniently realize stable adjustment of the balance force, and can also install an electrically-driven adjusting spring 312 for centrifugal force adjustment to realize automatic program control.

The utility model discloses a high-efficient automatic multi-blade wind wheel device of variable angle speed governing, direction variable angle mechanism, independent slot guide structure among the direction variable angle mechanism make fan-shaped indent blade windward variable angle adjust windward area, can design slot guide structure form control adjustment blade variable angle size and variable angular velocity, also optional joint connecting rod guide structure form adjustment connecting rod radius of rotation control adjustment blade variable angle size and variable angular velocity, or be equipped with the fan-shaped indent blade variable angle of the program-controlled drive of servo drive system. Referring to an example, fig. 5, wherein the guiding angle-changing mechanism is designed by adopting an independent groove guiding structure, according to the number of blades to be installed as required, peripheral shaft holes are uniformly formed in the hub 502 in the radial direction, a guiding groove 503 (refer to example, fig. 5) forming a certain angle with the axial direction is formed in each peripheral hole on the end surface of the hub 502 and communicated with the peripheral holes, blades 501 with shaft handles are uniformly inserted in the peripheral holes of the hub 502 and can move and rotate in the radial direction on the hub 502, a knuckle bearing 305 assembled at one end of a connecting rod 306 in fig. 3 passes through the guiding groove and is fastened on the shaft handle of the blade 301, when the blade 1 moves in the radial direction on the hub, the knuckle bearing 305 is driven to move in the guiding groove, the knuckle bearing 305 forming a certain angle with the axial direction of the peripheral holes drives the shaft handle of the blade 301 to rotate, so that the guiding angle-changing mechanism taking the guiding groove as a main function is realized, and the blade 301 rotates while moving in the radial direction on the hub 302, and the windward angle of the blade 301 is changed. Because the high-efficiency automatic variable-angle speed-regulating multi-blade wind wheel device of the utility model is arranged on a horizontal shaft generator facing the wind, before the wind wheel is started, the blade 301 has a set initial windward angle (the maximum value when the windward side of the blade 301 is vertical to the wind direction), the wind force acts on the blade 301 and has a large component force along the circumferential direction of the hub 302, namely, the rotating torque acting on the hub 302 can drive the wind wheel to be easily started and rapidly rotated, when the wind speed is increased in the process of the stable rotation of the wind wheel, the rotating torque acting on the hub 302 by the blade 301 is relatively increased, the rotating speed of the wind wheel is increased, the centrifugal force generated by the rotation of the blade 301 as a centrifugal body on the hub 302 is increased, when the centrifugal force is larger than the compression deformation elasticity of the spring 312 in the centrifugal force balance mechanism, the blades 301 move outwards along the radial direction on the hub 302 and rotate by themselves under the action of the guide grooves to increase the windward angle, the component force of wind force acting on the blades 301 along the circumferential direction of the hub 302 is relatively reduced, namely the rotating moment acting on the hub 302 is relatively reduced, so that the windward angle of the blades 301 and the rotating speed of the wind wheel tend to be in a balanced state (namely the rotating moment acting on the hub 302 by the blades 301 is not changed when the wind speed is increased to a certain value, the rotating speed of the wind wheel is not changed, the centrifugal force generated by the blades 301 is not changed, and when the centrifugal force is balanced with the compression deformation elastic force of the springs 312 on the centrifugal force balancing mechanism), the wind wheel rotates stably, and the blades 301 do not move radially and the windward angle is not changed any more. On the contrary, when the wind speed is reduced, the rotating moment of the wind force acting on the hub 302 is reduced to reduce the rotating speed of the wind wheel, the centrifugal force of the blade 301 is reduced, the blade moves towards the center of the hub 302 in the radial direction and rotates by itself under the action of the guide groove to reduce the windward angle, namely, the rotating moment acting on the hub 302 is relatively increased, the windward angle of the blade 301 and the rotating speed of the wind wheel tend to be in a balanced state, and when the wind speed is reduced to a certain value and is not changed, the rotating speed of the wind wheel is balanced again. When the wind speed is infinite and the rotating speed of the wind wheel is increased to the set rated rotating speed, the centrifugal force of the blade 301 is increased to move in the radial direction and the blade rotates under the action of the guide groove to enable the windward angle to be increased to be almost close to the 90-degree limit value (namely the wind direction is vertical to the windward side of the blade), the rotating moment of the blade 301 acting on the hub 302 is reduced to approach 0 value, the rotating speed of the wind wheel is not increased due to the increase of the wind speed when the wind wheel is balanced, a constant rotating speed is maintained, the set value of the constant rotating speed can be used as the rated rotating speed value of the generator, and the set value of the spring tension of the initial deformation of the spring 312 on the centrifugal force balancing mechanism can be adjusted through the tension adjusting nut 309 to set the rated rotating speed of the wind wheel. The guide angle-changing mechanism can also adopt a joint connecting rod guide structure design, so that the blades 1 can move radially relative to the hub and simultaneously drive a joint connecting rod (the fixed end at the other end can do circular rotation motion as an axis) connected with the blade shaft handle to drive the blades to rotate to achieve windward angle change, and the joint connecting rod guide structure can adjust the rotating radius of the joint connecting rod to control the angle change size and the angle change speed of the blades. The guide angle changing mechanism can also select a servo motor angle changing system for a large wind turbine generator set to realize program control angle changing.

The utility model discloses a high-efficient automatic multi-blade wind wheel device of variable angle speed governing, lazytongs can design into all blades on the wind wheel and become the angle simultaneously in step, also can be with the blade according to quantity equipartition partition when stepping or step-by-step angle change, optionally join in marriage umbrella type structure, synchronous gear structure or synchronous joint connecting rod structure mutual integrated form or be equipped with the synchronous angle change of servo drive system program-controlled drive blade. Referring to the example of fig. 3 and 5, the synchronizing mechanism is of an umbrella type structure. Because the wind wheel is arranged on the horizontal shaft generator to face the wind, the blades 301 as the centrifugal bodies are not equal to each other in the radial force relative to the hub 302 under the resultant force action of the centrifugal force and the self gravity in the rotating process of the blades 301 rotating to the top and the bottom of the hub 302 of the wind wheel, the relative balance positions and the wind-facing angles of the blades on the hub 302 can be different under the action of the centrifugal force balance mechanism, the rotating moment of each blade 301 acting on the hub can be different, the dynamic balance of the wind wheel is poor, the wind wheel can not rotate stably or shake slightly, and the service life of the wind wheel can be shortened after long-time operation. The synchronous mechanism realizes synchronous movement and angle change of all blades through the opening and closing synchronization principle of the umbrella-shaped structure supporting rod, the problem can be solved, each blade 301 is connected with a synchronous disc 308 of the synchronous mechanism through a first joint bearing 305 and a second joint bearing 307 which are assembled at two ends of a connecting rod 306, during the rotation process of the wind wheel, the radial stress of the blade 301 rotating to the bottom of the wind wheel relative to a hub 302 is large, the relative displacement is large, when the blade moves on the hub 302, the connecting rod 306 drives the synchronous disc 308 of the synchronous mechanism to move along the guide shaft 310, the synchronous disc 308 of the synchronous mechanism can drive other connecting rods 306 to move, and other blades 301 on the hub 302 are synchronously moved, so that all the blades 301 at the top and the bottom of the wind wheel can be synchronously stretched and adjusted in angle and speed relative to the hub 302, and the synchronous angle change and speed regulation effects are achieved. The synchronous mechanism can also adopt a synchronous gear structural design (a circumferential bull gear is directly meshed and connected with a pinion arranged on each fan blade shaft handle to realize angle-variable synchronization of all blades) or a synchronous joint connecting rod structure (a joint connecting rod connected with the blades is mutually linked to realize angle-variable synchronization of all the blades) or a servo motor is used for program-controlled driving of all the blades to realize angle-variable synchronization.

The utility model discloses a high-efficient automatic multi-leaf wind wheel device of variable angle speed governing, the kuppe chooses for use stainless steel thin wall material to be convenient for process and improves life reduce cost, refer to example attached drawing 3, the circular arc type water conservancy diversion design of kuppe 303 windward side, protruding disc is more easy with wind wheel central zone's wind-force to the periphery direction, also is wheel hub 302 simultaneously goes up centrifugal force balance mechanism, the sealed safety cover of direction variable angle mechanism and lazytongs, also can choose other metal material, non-metallic material for use, and required corresponding structure size. The wind wheel device can be applied in a module integration mode through a centrifugal body, a centrifugal force balance mechanism, a guide angle changing mechanism and a synchronous mechanism which are mutually matched according to requirements.

The utility model discloses a high-efficient automatic multi-blade wind wheel device of variable angle speed governing, lubricating system and sealing system, wear-resisting sliding sleeve and the wear-resisting cover of blade in the lubricating system are the mode of curling and contracting after the opening and inlaying in the mechanism, also can the fastener fix or heat-treat mode as an organic whole. The lubricating system adopts a lubricating mode that enough lubricant is directly coated in a closed cavity formed by the wind wheel air guide sleeve and the wind wheel hub, and lubricating liquid can also be connected to a generator shaft center hole through a tower rod of a ground wind turbine generator by using a liquid guide pipe and is communicated with the closed cavity formed by the wind wheel air guide sleeve and the wind wheel hub to be injected into the wind wheel. Referring to the embodiment shown in fig. 3, the lubricating system adopts the vane wear-resistant sliding sleeve 314 made of oil-free wear-resistant pressure-resistant polyester material and lubricating grease 315 for lubrication, so that the service life of the equipment is prolonged, the maintenance frequency is reduced by adopting the sealing system of the wear-resistant corrosion-resistant sealing ring 313, and an alloy wear-resistant sliding sleeve or lubricating liquid for lubrication can be selected according to the design structure. The design structure that inlays in adopting the polyester sliding sleeve opening crimping, simple structure, processing simple to operate. Realize manual, automatic programme-controlled lubrication effect, reduce the maintenance cost.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an enlarged view of the female fan blade of FIG. 1;

FIG. 3 is an enlarged view of the integrated structure of the centrifugal force balancing mechanism, the angle-varying guiding mechanism and the synchronizing mechanism in FIG. 1;

FIG. 4 is a diagram illustrating the variation of the windward angle of the fan-shaped concave blade of FIG. 1;

FIG. 5 is a schematic diagram of the windward angle change self-transmission of the fan-shaped concave blade of FIG. 1;

101 in figure 1, concave fan-shaped blades, 102, a wind wheel hub, 103, a wind wheel fairing, 104, a generator flange seat, 105, a wind direction, 1101, a wind wheel turning towards the wind,

201 in fig. 2, the blade windward side concave shape, 2101, the blade tip (broad side), 2102, the blade root (narrow side), 2103, the blade shank,

in FIG. 3, 301 is a concave fan-shaped blade, 302 is a wind wheel hub, 303 is a wind wheel dome, 304 is a motor flange seat, 305 is a knuckle bearing I, 306 is a connecting rod, 307 is a knuckle bearing II, 308 is a synchronizing disc, 309 is an adjusting nut, 310 is a guide shaft, 311 is a wear-resistant sliding sleeve, 312 is a spring, 313 is a sealing ring, 314 is a blade wear-resistant sleeve, 315 is a lubricant,

in fig. 4, 4101 is a concave fan-shaped blade, 4102 is a windward angle of the blade relative to the hub when the wind wheel rotates at a low speed, 401 is a windward angle of the blade relative to the hub after the blade changes angle when the wind wheel rotates at a high speed, 402 is a wind wheel hub, 403 is a wind direction,

in fig. 5, 501, concave fan-shaped blades, 502, wind wheel hub, 503, hub guide slots, 504, blade motion direction (when the blades move outwards under the action of rotating centrifugal force, the knuckle bearing moves along the guide slots to make the blades self-transfer), 5101, concave fan-shaped blades, 5102, wind wheel hub,

Detailed Description

The invention will be further explained with reference to the drawings and the detailed description below:

[ example 1 ]

The utility model provides a high-efficient automatic multi-leaf wind wheel device of variable angle speed governing, refer to fig. 3, including fan-shaped indent blade 301, wheel hub 302, kuppe 303 and motor flange seat 304, the handle equipartition cartridge of blade 301 is in wheel hub 302, install centrifugal force balance mechanism and direction variable angle mechanism and lazytongs and the mutual associative link on wheel hub 302, by joint bearing 305, connecting rod 306, joint bearing two 307, synchronization disc 308, adjusting nut 309, guiding axle 310, wear-resisting sliding sleeve 311, spring 312, sealing ring 313, the centrifugal force balance mechanism that blade wear-resisting cover 314 interconnect constitutes, through lazytongs and direction variable angle mechanism integration assembly to wheel hub 302, kuppe 303 is installed and is played water conservancy diversion, dustproof, the sealed effect, the lubricating system who is equipped with emollient 315 again constitutes with sealing system the utility model discloses a high-efficient automatic multi-leaf wind wheel device of variable angle speed governing.

[ example 2 ]

The number of the fan-shaped concave blades 101 in fig. 1 is 10 for illustration, and a plurality of the fan-shaped concave blades can be installed according to design requirements and uniformly distributed on the hub 102, so that efficiency is improved, and cost is reduced.

[ example 3 ] A method for producing a polycarbonate

The centrifugal force balance mechanism in fig. 3 is an exemplary one in which the balance force spring 312 and the centrifugal body blade 301 are used as main bodies, and a structural mode of a damper or an independent centrifugal body with adjustable tension or a structural mode of a servo motor for driving and adjusting balance force may also be adopted, and a comprehensive structural form in which various structures are integrated with each other may also be selected and matched according to requirements, so as to be economical and practical, and convenient for processing, installation, maintenance and repair.

[ example 4 ]

The guiding angle-changing mechanism in fig. 3 adopts an independent groove guiding structure integrated on the hub 303, can also adopt a joint connecting rod guiding structure or a servo system to drive angle changing, and can also be matched with a comprehensive structural form of mutually integrating a plurality of structures according to requirements. All the blades 1 on the wind wheel can be designed to simultaneously change the angle synchronously, or the blades 301 are uniformly distributed according to the design requirement and are divided into time by time or angle by angle gradually, so that the pilot variable-angle optimization control of the stable rotation of the wind wheel is realized, the service life is prolonged, and the cost is reduced. Is convenient for installation, maintenance, replacement and maintenance.

[ example 5 ] A method for producing a polycarbonate

The synchronizing mechanism 307 in fig. 3 is an exemplary umbrella structure, and may also adopt a synchronous gear structure or a synchronous joint connecting rod structure, or a synchronous driving of a servo motor, or may be selected and matched with a comprehensive structural form in which various structures are integrated with each other according to requirements, so as to be economical and practical, and convenient for processing, installation, maintenance and maintenance.

[ example 6 ]

According to the embodiment 1, the integrated centrifugal force balancing mechanism and the guide variable angle mechanism can be directly selected and matched to be applied to the small wind turbine generator (the centrifugal force generated by the high-rotating-speed light-weight centrifugal body blade 101 is influenced by self gravity very little, and a synchronization mechanism is not needed), and the centrifugal force balancing mechanism, the guide variable angle mechanism and the synchronization mechanism which are mutually selected and matched can be applied to the wind turbine generator on the current market in a module integration mode to play a role in automatic synchronization variable angle speed regulation. Because of the utility model discloses simple structure reaction is sensitive, can install additional on large-scale generating set with servo variable angle or driftage system adapted more effectual play guide variable angle effect of driftage.

It should be understood that the above description is only a partial exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments that can be understood by those skilled in the art, and all other embodiments obtained by equivalent changes and modifications made within the scope of the present invention all fall into the scope of the present invention. While the claims as filed and any reference signs shall not be construed as limiting the claim concerned.

Claims

1. A high-efficiency automatic variable-angle speed-regulating multi-blade wind wheel device is characterized by comprising fan-shaped concave blades, a wind wheel flow guide cover, a wind wheel hub, a centrifugal force balance mechanism, a synchronization mechanism, a guide variable-angle mechanism and a motor flange seat, wherein the synchronization mechanism is formed by mutually connecting and assembling a connecting rod, a joint bearing and a synchronization disc, the centrifugal force balance mechanism is formed by mutually connecting and assembling a spring adjusting nut, a spring guide shaft, a guide shaft wear-resistant sliding sleeve of the guide shaft and a spring, the wind wheel blades are directly used as centrifugal bodies, the deformation force of the spring is used as balance force, the guide variable-angle mechanism is formed by mutually connecting and assembling shaft handles of the wind wheel blades, guide grooves on the wind wheel hub, a wind wheel blade sealing ring and a wind wheel blade shaft handle wear-resistant shaft sleeve, the shaft handles of the fan-shaped concave blades are uniformly distributed and inserted in the wind wheel hub, the centrifugal force balance mechanism, the guide variable-angle mechanism and the synchronization mechanism are mutually connected on the end face of the wind wheel hub, the wind wheel flow guide cover is arranged on the wind wheel hub to play a role of flow guide, dust prevention and sealing, and a lubricating system is further arranged to form the high-efficiency automatic variable-angle speed-regulating multi-blade speed-regulating multi-wheel device.

2. The high-efficiency automatic variable-angle speed-regulating multi-blade wind wheel device according to claim 1, wherein the fan-shaped concave blades are of a fan-shaped concave structure, the windward acting area of the blades on the wind wheel is changed from small to large from the central shaft handle to the outer direction, namely, the blades with narrow roots and wide tips, the concave structure is a concave arc design structure adopted by the windward side of the blades, the fan-shaped structure of the blades can be designed into an integral fan shape, a progressive fan shape or a combined fan shape according to practical conditions, the windward area of the blades can be continuously, intermittently and gradually increased from the center to the outer direction, and the concave arc can be designed into a concave arc size according to practical conditions.

3. A high-efficiency automatic variable-angle speed-regulating multi-blade wind wheel device according to claim 1, wherein the fan-shaped concave blades are uniformly inserted into the wind wheel hub as centrifugal bodies, can be linked with a centrifugal force balancing mechanism, a guiding variable-angle mechanism and a synchronizing mechanism which are mutually selected and matched, can be assembled on the wind wheel hub in a modular integration manner, and can be provided with a plurality of blades as required.

4. A high-efficiency automatic angle-changing speed-regulating multi-blade wind wheel device according to claim 1 or 3, wherein a tension spring in the centrifugal force balancing mechanism is provided with a tension regulating nut to regulate tension to control and regulate the rotating speed of the wind wheel, and a tension-adjustable damper or an independent centrifugal body can be optionally matched to be mutually integrated, or a servo motor is provided to drive and regulate the initial balancing force.

5. A high-efficiency automatic variable-angle speed-regulating multi-blade wind wheel device according to claim 1 or 3, characterized in that an independent groove guide structure in the guide variable-angle mechanism enables the fan-shaped concave blades to change the angle to the wind to regulate the windward area, the groove guide structure can be designed to control the variable angle size and the variable angle speed of the regulating blades, the joint connecting rod guide structure can be also used to control the rotating radius of the connecting rod to control the variable angle size and the variable angle speed of the regulating blades, or a servo drive system is equipped to drive the fan-shaped concave blades to change the angle in a program control manner.

6. A high-efficiency automatic angle-changing speed-regulating multi-blade wind wheel device according to claim 1 or 3, characterized in that the synchronizing mechanism can be designed such that all blades on the wind wheel synchronously change the angle at the same time, or the blades can be uniformly distributed according to the number and be time-changed or angle-changed step by step, and an umbrella structure, a synchronous gear structure or a synchronous joint connecting rod structure can be optionally matched to be mutually integrated or a servo driving system is matched to drive the blades to synchronously change the angle.

7. A high-efficiency automatic variable-angle speed-regulating multi-blade wind wheel device according to claim 1 or 3, wherein the wear-resistant sliding sleeve and the blade wear-resistant sleeve in the lubricating system are in a mode of being opened, curled and embedded in a mechanism, or in a mode of being fixed by a fastener or being integrally heat-treated.

8. A wind wheel device with multiple blades for high-efficiency automatic angle and speed regulation according to claim 1 or 3, wherein the centrifugal body, the centrifugal force balancing mechanism, the guiding angle-changing mechanism and the synchronizing mechanism which can be mutually matched according to requirements are applied in a module integration mode.

9. A high-efficiency automatic angle-changing speed-regulating multi-blade wind wheel device according to claim 1 or 3, characterized in that the lubricating system adopts a lubricating mode that enough lubricant is directly smeared in a closed cavity formed by a wind wheel flow guide cover and a wind wheel hub, and lubricating liquid can also be connected to a generator axial center hole through a tower pole of a ground wind turbine unit by a liquid guide pipe and is communicated with the closed cavity formed by the wind wheel flow guide cover and the wind wheel hub and injected into the wind wheel.