Blade angle adjusting mechanism of wind power generation device

Abstract

The utility model relates to the technical field of wind power generation, in particular to a blade angle adjusting mechanism of a wind power generation device, which comprises a device frame, three blade seats, three blades, a mounting shell and an adjusting mechanism, and the adjusting mechanism comprises three bevel gears, a driving gear, a driving assembly, three connecting rods, an annular sliding rail and a second speed reducing assembly. When the angles of the blades need to be increased, the driving assembly operates and drives the driving gear to rotate, the three bevel gears are meshed with the driving gear, the three bevel gears rotate and then drive the three blade seats to rotate, so that the angles of the blades are increased, and meanwhile, the three blades rotate and drive the second speed reduction assembly to rotate in the annular sliding rail; the second speed reduction assembly can further limit the rotating speed of the blades, and the problems that the number of components of a wind power generation device is large, the structure is complex, and later operation and maintenance difficulty and operation and maintenance cost are increased are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power generation technical field especially relates to a kind of blade angle adjusting mechanism of wind power generation device. BACKGROUND

[0002] Wind power generation device is just wind energy conversion into mechanical energy, and then mechanical energy is converted into electric energy a kind of electric power equipment, common wind power generation device, the rapid rotation of blade can make generator overspeed, affect its service life.

[0003] Prior art CN221779570U discloses a kind of wind power generation device's blade angle adjusting mechanism with wind, including device frame, rotationally connected on the device frame wheel axle, solidly connected on the wheel axle wheel and connected on the blade of wheel, wheel is rotationally connected with multiple blade seats of ring cloth arrangement on it, blade is connected on blade seat, wheel axle is rotationally connected with the shaft sleeve located in wheel, one end is connected on the wheel axle between shaft sleeve and wheel axle, the other end is connected on the coil spring of shaft sleeve, blade seat is connected with shaft sleeve by connecting assembly.Connecting assembly includes the driving crank of solidly connected in blade seat inner end and the driving frame of solidly connected on shaft sleeve, hinged with driving block on driving frame, driving block is equipped with long hole, driving crank inner end is inserted and passes through long hole and the radial dimension of driving crank insertion end is less than the width dimension of long hole size, when wind speed becomes larger, blade can adjust angle with wind, to prevent blade speed too fast and cause generator overspeed.

[0004] But above-mentioned structure, wind power generation device component is more, structure is more complex, increase the difficulty and operation and maintenance cost of later operation and maintenance. UTILITY MODEL CONTENT

[0005] The utility model is to provide a kind of blade angle adjusting mechanism of wind power generation device, solve the problem that wind power generation device component is more, structure is more complex, increase the difficulty and operation and maintenance cost of later operation and maintenance.

[0006] In order to achieve the above object, the utility model provides a kind of blade angle adjusting mechanism of wind power generation device, including device frame, three blade seats, three blades, installation shell and adjusting mechanism, three the blade seat is respectively arranged in the one side of device frame, three the blade is respectively fixedly connected with three the blade seat, the installation shell is fixedly connected with the device frame, and it is located in the one side of device frame close to three the blade seat, three the blade seat is respectively arranged in the installation shell, and three the blade seat is respectively through the installation shell, the adjusting mechanism includes three bevel gears, driving gear, drive assembly, three connecting rods, annular slide rail and second speed reduction component, three the bevel gears are respectively fixedly connected with three the blade seat, and located in the inside of installation shell, the driving gear is engaged with three the bevel gears, the drive assembly is fixedly connected with the installation shell, and it is located in the one end of installation shell away from the device frame, three the connecting rod is respectively fixedly connected with three the blade seat, the annular slide rail is fixedly connected with the device frame, and it is located in the inside of installation shell, the second speed reduction component is arranged between the annular slide rail and three the connecting rod.

[0007] Wherein, the drive assembly includes adjusting motor and mounting plate, the adjusting motor is fixedly connected with the installation shell, and it is located in the one end of installation shell away from the device frame, the side of mounting plate is fixedly connected with the output end of adjusting motor, the other side of mounting plate is fixedly connected with the driving gear.

[0008] Wherein, the second speed reduction component includes internal gear, rotary seat, connecting shaft and straight gear, the internal gear is slidably arranged in the annular slide rail, the rotary seat is fixedly connected with the device frame, and located in the installation shell, the one end of connecting shaft is rotatably arranged in the rotary seat, the straight gear is fixedly connected with the other end of connecting shaft, and the straight gear is engaged with the internal gear.

[0009] Wherein, the blade angle adjusting mechanism of wind power generation device further includes speed measuring mechanism, and the speed measuring mechanism is arranged on the outer side wall of the device frame.

[0010] Wherein, the speed measuring mechanism includes mounting block, speed meter and controller, the mounting block is fixedly connected with the device frame, and located on the outer side wall of the device frame, the speed meter is fixedly connected with the mounting block, and located above the mounting block, the controller is fixedly connected with the mounting block, and located on the outer side wall of the mounting block, and the controller is electrically connected with the speed meter and the adjusting motor respectively.

[0011] The utility model discloses a kind of blade angle adjusting mechanism of wind power generation device, the installation shell is used to install the adjusting mechanism, the adjusting mechanism is used to adjust the blade angle, three the connecting rod is used to connect the second reduction assembly and three the blade, prevent damage caused by overload, when wind speed is higher, the blade angle needs to be increased, the driving assembly operates, drives the driving gear rotation, since three bevel gears are engaged with the driving gear, three bevel gears rotate, in turn drive three blade seats rotation, to realize the increase of the blade angle, simultaneously, three the blade rotates, drives the second reduction assembly rotation in the annular slide rail, the second reduction assembly can further limit the blade rotating speed, solve the problem that wind power generation device component is more, structure is more complex, increase later operation and maintenance difficulty and operation and maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows.

[0013] Figure 1 It is the overall structure schematic view of the first embodiment of the utility model.

[0014] Figure 2 It is the internal structure schematic view of the installation shell of the first embodiment of the utility model.

[0015] Figure 3 It is the structure schematic view of the internal meshing gear and rotating seat of the first embodiment of the utility model.

[0016] Figure 4 It is Figure 3 The enlarged view of A in Fig.

[0017] Figure 5 It is the overall structure schematic view of the second embodiment of the utility model.

[0018] 101-device frame, 102-blade seat, 103-blade, 104-installation shell, 105-bevel gear, 106-driving gear, 107-connecting rod, 108-annular slide rail, 109-adjusting motor, 110-mounting plate, 111-internal meshing gear, 112-rotating seat, 113-connecting shaft, 114-straight gear, 201-mounting block, 202-speedometer, 203-controller. DETAILED DESCRIPTION

[0019] The embodiments of the utility model will be described in detail below, the examples of the embodiments are shown in the drawings, the embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0020] First embodiment

[0021] Please refer to Figures 1-4 , Figure 1 is the overall structure schematic view of the first embodiment of the utility model. Figure 2 is the internal structure schematic view of the mounting shell of the first embodiment of the utility model. Figure 3 is the structure schematic view of the internal meshing gear and rotating seat of the first embodiment of the utility model. Figure 4 is Figure 3 the enlarged view of A in the figure.

[0022] The utility model provides a kind of blade angle adjusting mechanism of wind power generation device, including device frame 101, three blade seats 102, three blades 103, mounting shell 104 and adjusting mechanism, the adjusting mechanism includes three bevel gears 105, driving gear 106, drive assembly, three connecting rods 107, annular slide rail 108 and second speed reduction component, the drive assembly includes adjusting motor 109 and mounting plate 110, the second speed reduction component includes internal meshing gear 111, rotating seat 112, connecting shaft 113 and straight gear 114, the above-mentioned mechanism solves the problem that wind power generation device component is more, structure is more complex, increases later operation and maintenance difficulty and operation and maintenance cost.

[0023] For specific embodiment, three the blade seat 102 is arranged in one side of the device frame 101 respectively, three the blade 103 is respectively connected with three the blade seat 102, the blade seat 102 is used for installing the blade 103, the device frame 101 is used for connecting the mounting shell 104.

[0024] The mounting shell 104 is fixedly connected with the device rack 101 and located on the side of the device rack 101 close to the three blade seats 102, the three blade seats 102 are arranged in the mounting shell 104 respectively, and the three blade seats 102 penetrate through the mounting shell 104 respectively, the three bevel gears 105 are fixedly connected with the three blade seats 102 respectively and located in the interior of the mounting shell 104, the driving gear 106 is engaged with the three bevel gears 105, the driving assembly is fixedly connected with the mounting shell 104 and located at the end of the mounting shell 104 away from the device rack 101, the three connecting rods 107 are fixedly connected with the three blade seats 102 respectively, the annular slide rail 108 is fixedly connected with the device rack 101 and located in the interior of the mounting shell 104, the second speed reduction assembly is arranged between the annular slide rail 108 and the three connecting rods 107, the mounting shell 104 is used for mounting the adjusting mechanism, the adjusting mechanism is used for adjusting the angle of the blade 103, the three connecting rods 107 are used for connecting the second speed reduction assembly and the three blades 103, and damage caused by overload is prevented; when the wind speed is high and the angle of the blade 103 needs to be increased, the driving assembly operates to drive the driving gear 106 to rotate, since the three bevel gears 105 are engaged with the driving gear 106, the three bevel gears 105 rotate to drive the three blade seats 102 to rotate, so that the angle of the blade 103 is increased, and meanwhile, the three blades 103 rotate to drive the second speed reduction assembly to rotate in the annular slide rail 108, the second speed reduction assembly can further limit the rotation speed of the blade, and the problems that the wind power generation device has many components, the structure is relatively complex, and the difficulty and cost of later operation and maintenance are increased are solved.

[0025] The adjusting motor 109 is fixedly connected with the mounting shell 104 and located at the end of the mounting shell 104 away from the device rack 101, one side of the mounting plate 110 is fixedly connected with the output end of the adjusting motor 109, the other side of the mounting plate 110 is fixedly connected with the driving gear 106, the mounting plate 110 is used for fixing the adjusting motor 109, the adjusting motor 109 rotates to drive the driving gear 106 to rotate, since the three bevel gears 105 are engaged with the driving gear 106, the three bevel gears 105 rotate to drive the three blade seats 102 to rotate, so that the angle of the blade 103 is increased.

[0026] The inner gear 111 is arranged in the annular slide rail 108, the rotating seat 112 is fixedly connected with the device frame 101 and located in the mounting shell 104, one end of the connecting shaft 113 is rotatably arranged in the rotating seat 112, the spur gear 114 is fixedly connected with the other end of the connecting shaft 113, the spur gear 114 is engaged with the inner gear 111, the rotating seat 112 is used for mounting the connecting shaft 113, the connecting shaft 113 is used for fixing the spur gear 114, the number of teeth of the spur gear 114 is greater than that of the inner gear 111, the three blades 103 rotate to drive the inner gear 111 to rotate in the annular slide rail 108, because the inner gear 111 and the spur gear 114 are engaged with each other, the number of teeth rotated by them in the same time must be equal, therefore, if the number of teeth of the inner gear 111 is less, and the number of teeth of the spur gear 114 is more, in order to keep the number of teeth equal, the spur gear 114 must rotate less number of turns, that is, the rotation speed is reduced.

[0027] When the wind speed is high, and the angle of the blade 103 needs to be increased, the adjusting motor 109 rotates to drive the driving gear 106 to rotate, because the three bevel gears 105 are engaged with the driving gear 106, the three bevel gears 105 rotate to further drive the three blade seats 102 to rotate, and the angle of the three blades 103 is increased, so that the air resistance is increased, the rotation speed of the blade 103 is displayed, and the overload and damage are prevented, further, the three blades 103 rotate to drive the inner gear 111 to rotate in the annular slide rail 108, because the inner gear 111 and the spur gear 114 are engaged with each other, the number of teeth rotated by them in the same time must be equal, therefore, if the number of teeth of the inner gear 111 is less, and the number of teeth of the spur gear 114 is more, in order to keep the number of teeth equal, the spur gear 114 must rotate less number of turns, that is, the rotation speed is reduced, and the problems that the wind power generation device has many components, the structure is relatively complex, and the difficulty and cost of later operation and maintenance are increased are solved.

[0028] Second embodiment

[0029] Please refer to Figure 5 , Figure 5 It is the overall structure schematic view of the second embodiment of the utility model.

[0030] On the basis of the first embodiment, the blade angle adjusting mechanism of the wind power generation device further comprises a speed measuring mechanism, the speed measuring mechanism comprises a mounting block 201, a speed measuring instrument 202 and a controller 203.

[0031] For the specific embodiments, the speed measuring mechanism is arranged on the outer side wall of the device frame 101, and is used for monitoring the wind speed.

[0032] The mounting block 201 is fixedly connected with the device frame 101 and is located on the outer side wall of the device frame 101. The speedometer 202 is fixedly connected with the mounting block 201 and is located above the mounting block 201. The controller 203 is fixedly connected with the mounting block 201 and is located on the outer side wall of the mounting block 201. The controller 203 is electrically connected with the speedometer 202 and the adjusting motor 109 respectively. The mounting block 201 is used for mounting the speedometer 202 and the controller 203. The speedometer 202 is used for monitoring the wind speed and transmitting signals to the controller 203. The controller 203 controls the rotation of the adjusting motor 109, thereby realizing the adjustment of the angle of the blade 103. The blade 103 can change its angle according to the change of the wind speed, so as to adapt to the wind power generation demand under different wind speed conditions.

[0033] The above only discloses one or more preferred embodiments of the present application, and cannot limit the scope of the rights of the present application. Those skilled in the art can understand that the implementation of all or part of the above-mentioned embodiments is still within the scope of the present application.

Claims

1.A blade angle adjusting mechanism of a wind power generation device, comprising a device frame, three blade seats and three blades, the three blade seats are respectively arranged on one side of the device frame, and the three blades are respectively fixedly connected with the three blade seats, characterized in that, further comprising a mounting shell and an adjusting mechanism, the mounting shell is fixedly connected with the device frame and located on the side of the device frame close to the three blade seats, the three blade seats are respectively arranged in the mounting shell and penetrate through the mounting shell, the adjusting mechanism comprises three bevel gears, a driving gear, a driving assembly, three connecting rods, an annular slide rail and a second speed reduction assembly, the three bevel gears are respectively fixedly connected with the three blade seats and located in the interior of the mounting shell, the driving gear is engaged with the three bevel gears, the driving assembly is fixedly connected with the mounting shell and located at the end of the mounting shell away from the device frame, the three connecting rods are respectively fixedly connected with the three blade seats, the annular slide rail is fixedly connected with the device frame and located in the interior of the mounting shell, and the second speed reduction assembly is arranged between the annular slide rail and the three connecting rods. 2.A blade angle adjusting mechanism of a wind power generation device according to claim 1, characterized in that, the driving assembly comprises an adjusting motor and a mounting plate, the adjusting motor is fixedly connected with the mounting shell and located at the end of the mounting shell away from the device frame, one side of the mounting plate is fixedly connected with the output end of the adjusting motor, and the other side of the mounting plate is fixedly connected with the driving gear. 3.A blade angle adjusting mechanism of a wind power generation device according to claim 1, characterized in that, the second speed reduction assembly comprises an internal gear, a rotating seat, a connecting shaft and a spur gear, the internal gear is slidingly arranged in the annular slide rail, the rotating seat is fixedly connected with the device frame and located in the mounting shell, one end of the connecting shaft is rotatably arranged in the rotating seat, the spur gear is fixedly connected with the other end of the connecting shaft, and the spur gear is engaged with the internal gear. 4.A blade angle adjusting mechanism of a wind power generation device according to claim 2, characterized in that, the blade angle adjusting mechanism of the wind power generation device further comprises a speed measuring mechanism, and the speed measuring mechanism is arranged on the outer side wall of the device frame. 5.A blade angle adjusting mechanism of a wind power generation device according to claim 4, characterized in that, the speed measuring mechanism comprises a mounting block, a speed measuring instrument and a controller, the mounting block is fixedly connected with the device frame and located on the outer side wall of the device frame, the speed measuring instrument is fixedly connected with the mounting block and located above the mounting block, the controller is fixedly connected with the mounting block and located on the outer side wall of the mounting block, and the controller is respectively electrically connected with the speed measuring instrument and the adjusting motor. ​ ​ ​ ​ ​

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