CN222350871U - Off-axis blade and double-round-frame combined high-efficiency breeze uniform-speed generator - Google Patents

Abstract

The present application discloses a high-efficiency breeze uniform-speed generator combined with eccentric blades and double circular frames, and relates to the technical field of wind turbines, including a supporting tower body, a rotating disk fixedly installed on the top of the supporting tower body, a machine room fixedly installed on the top of the rotating disk, a horizontal axis rotatably arranged at the front end of the machine room, a wind wheel fixedly arranged at the front end of the horizontal axis, a speed increaser connected to the rear end of the horizontal axis, a generator connected to the output end of the speed increaser, a wind direction and wind speed controller arranged outside the machine room, the wind wheel comprising at least three groups of blades, an inner circular frame, an inner circular frame mounting frame and an outer circular frame, the inner circular frame mounting frame is fixedly connected to the horizontal axis, the inner circular frame is fixedly installed on the outside of the inner circular frame mounting frame, the outer circular frame is fixedly installed on the outside of the inner circular frame, the blades are rotatably installed on the outer circular frame, and an elastic puller for hindering the rotation of the blades is arranged on the outer circular frame. The present application not only effectively improves the strong typhoon resistance performance of the power generation device, but also saves production and maintenance costs, and truly achieves a century-long plan.

Description

Off-axis blade and double-round-frame combined high-efficiency breeze uniform-speed generator

Technical Field

The application relates to the technical field of wind driven generators, in particular to an off-axis blade and double-round-frame combined high-efficiency breeze uniform-speed generator.

Background

The wind driven generator is an electric power device which converts wind energy into mechanical work and drives a rotor to rotate and finally outputs alternating current. The wind driven generator generally comprises wind wheels, a generator (comprising a device), a direction regulator (tail wing), a tower, a speed limiting safety mechanism, an energy storage device and the like. At present, a large three-blade horizontal axis wind driven generator is widely used in China.

The traditional large three-blade horizontal axis wind driven generator has common strong typhoon resistance, and can not be released in time due to overlarge wind resistance in typhoon weather, so that the phenomenon of blade fracture or support frame collapse is often caused, and huge economic loss is caused.

Disclosure of utility model

In order to improve the strong wind resistance of a large horizontal shaft type wind driven generator, the application provides a high-efficiency breeze uniform-speed generator with combined eccentric shaft blades and double circular frames.

The application provides an off-axis blade and double-round-frame combined high-efficiency breeze uniform-speed generator, which adopts the following technical scheme:

The utility model provides an off-axis blade and two circle frame combination formula high efficiency breeze uniform velocity generator, includes the support tower body, the top fixed mounting who supports the tower body has the carousel, the top fixed mounting of carousel has the organic storehouse, the rotation of machinery storehouse front end is provided with the horizontal axis, the front end of horizontal axis is fixedly provided with the wind wheel, the rear end of horizontal axis is connected with the speed increaser, the output of speed increaser is connected with the generator, the outside in machinery storehouse is provided with and is used for monitoring wind direction wind speed and control carousel pivoted wind direction wind speed controller, the wind wheel includes three at least groups blade, interior circle frame mounting bracket and outer circle frame, interior circle frame mounting bracket and horizontal axis fixed connection, interior circle frame fixed mounting is in the outside of interior circle frame mounting bracket, outer circle frame fixed mounting is in the outside of interior circle frame, the blade is rotated and is installed on the outer circle frame, be provided with the elasticity that is used for hindering the blade pivoted on the outer circle frame and draw the piece.

Through adopting above-mentioned technical scheme, under the wind speed condition that is less than the generator and reaches the full load, can make blade and horizontal axis keep certain angle under the elasticity pulling piece pulling, normally generate electricity, and under strong typhoon weather, the blade can rotate to being parallel with the horizontal axis to can come temporarily at strong typhoon, in time release the windage, promote the anti strong typhoon effect of wind wheel.

Optionally, the elasticity draws the piece to adopt tension spring, tension spring's one end and outer circle frame fixed connection, tension spring other end fixed connection is in one side of blade.

Optionally, a brake assembly is arranged on the wind wheel, and when the generator is fully loaded, the brake assembly can drive the blades to rotate until the blades are parallel to the horizontal shaft.

Through adopting above-mentioned technical scheme, after brake subassembly driven blade and horizontal axis parallel, can let the windage through the wind wheel to the maximum to reduce the windage, avoid the wind wheel to fly to change.

Optionally, the brake subassembly includes brake stay and is used for receiving and releasing the hoist engine of rolling up the brake stay, the loose end fixed connection of brake stay is in the blade one side that deviates from elasticity and draws the piece, the hoist engine is controlled by wind direction wind speed controller.

Through adopting above-mentioned technical scheme, test in advance and set up the wind speed size when the generator reaches the full load, when the strong wind comes the wind speed to reach the value when the generator is full load, wind direction wind speed controller orders about hoist engine rolling brake guy for the blade rotates to parallel with the horizontal axis, thereby carries out the wind leakage brake.

Optionally, every group the blade comprises two minute blades and the connection hasp that is used for connecting two minute blades into an organic whole, two minute blades install in the both sides of outer circle frame, fixed the being provided with the erection column on the outer circle frame, be provided with the off-axis on the minute blade, the off-axis rotates with the erection column and is connected.

By adopting the technical scheme, compared with the traditional wind driven generator, the blade can be conveniently transported and installed, so that the large-scale construction of equipment can be easily realized.

Optionally, the extension line of the off-axis is offset from the center of the split vane.

Optionally, at least three fixed steel ring straight pull lines are arranged between the outer circle frame and the inner circle frame for connection, and the plurality of fixed steel ring straight pull lines, the inner circle frame, the outer circle frame and the plurality of groups of blades are distributed in a central symmetry mode by taking the horizontal shaft as the center.

Through adopting above-mentioned technical scheme, adopt the mutual drawing of many fixed steel ring straight-pull lines, the fixed steel ring straight-pull line how many can decide according to the wind-force condition in size and the service area of wind wheel, when satisfying wind wheel structural strength, can reduce the use of steel to reduce the dead weight and the windage of wind wheel.

Optionally, the top of machine storehouse is fixed to be provided with the enhancement seat, be provided with on the enhancement seat and be used for carrying out the enhancement that draws the cable-stay to machine storehouse both ends and support.

Through adopting above-mentioned technical scheme, strengthen and draw the piece and draw the both ends of storehouse to draw to one side and support, can effectively promote the stability of device's anti strong typhoon performance and operation in-process.

In summary, the present application includes at least one of the following beneficial effects:

1. The wind wheel adopts the mode of an inner circular frame, an outer circular frame and a plurality of groups of stay wires, the number of blades and the number of stay wires can be determined according to the size of the wind wheel and the wind power condition of a use area, the steel is reduced while the structural strength of the wind wheel is ensured, meanwhile, the stay wires are adopted to replace the steel, the wind resistance of the wind wheel is reduced as much as possible, and the strong typhoon resistance effect of the device is improved;

2. the scheme adopts the elastic pulling piece to link with the brake component so as to control the swing direction of the blade, when strong typhoon weather happens, the engine is fully loaded, the brake component drives the blade to be parallel to the horizontal shaft, wind resistance can be released to the greatest extent, the wind wheel is prevented from flying, the blade breakage or the collapse of the supporting tower body caused by overlarge wind resistance is effectively avoided, the damage of the engine caused by long-time load operation can be prevented, and the service life of the device is effectively prolonged.

Drawings

FIG. 1 is a schematic view showing the structure of the off-axis in the present embodiment;

Fig. 2 is a schematic structural view of a wind wheel embodied in the present embodiment;

FIG. 3 is an enlarged schematic view at A in FIG. 1;

Fig. 4 is an enlarged schematic view at B in fig. 2.

The reference numerals are 1, a supporting tower body, 11, a turntable, 2, a machine cabin, 3, a horizontal shaft, 4, a wind wheel, 41, a blade, 411, a split blade, 412, a connecting lock catch, 42, an inner circular frame, 43, an inner circular frame mounting frame, 44, an outer circular frame, 45, an elastic pulling piece, 46, a mounting column, 47, an eccentric shaft, 48, a fixed steel ring straight pulling wire, 5, a speed increaser, 6, a generator, 7, a wind direction and wind speed controller, 8, a brake assembly, 81, a brake pulling wire, 82, a winch, 9, a reinforcing seat, 91 and a reinforcing pulling piece.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a technical scheme that referring to fig. 1, an off-axis blade and double-round-frame combined high-efficiency breeze uniform generator comprises a supporting tower body 1, wherein a turntable 11 is fixedly arranged at the top end of the supporting tower body 1, in the scheme, the supporting tower body 1 adopts a tower crane commonly used in the existing building site, and comprises a tower foundation, a tower crane standard section, a climbing frame and the like, and the turntable 11 is fixedly arranged at the top end of the climbing frame.

The carousel 11 adopts large-scale electronic carousel 11, and the top fixed mounting organic storehouse 2 of carousel 11, the fixed seat 9 that strengthens that is provided with in top of machinery storehouse 2, is provided with on the seat 9 of strengthening and is used for carrying out the reinforcement that draws the cable-stayed to support to machinery storehouse 2 both ends and draws the piece 91, and the reinforcement draws the piece 91 to adopt wire rope, and wire rope's one end fixed connection is at the top of strengthening seat 9, and the other end fixed connection is in the tip of machinery storehouse 2.

The front end of the machine cabin 2 is rotatably provided with a horizontal shaft 3, in the scheme, the horizontal shaft 3 is rotatably arranged on the machine cabin 2 through a bearing, the rear end of the horizontal shaft 3 stretches into the machine cabin 2, the front end of the horizontal shaft 3 is fixedly provided with a wind wheel 4, the rear end of the horizontal shaft 3 is connected with a speed increaser 5 through a coupling, the output end of the speed increaser 5 is connected with a generator 6 through the coupling, and a wind direction and wind speed controller 7 for monitoring wind direction and wind speed and controlling a turntable 11 to rotate is arranged outside the machine cabin 2, so that the direction of the wind wheel 4 can be adjusted according to real-time wind direction.

Referring to fig. 1 and 2, a wind wheel 4 comprises at least three groups of blades 41, an inner frame 42, an inner frame mounting frame 43 and an outer frame 44, wherein the inner frame mounting frame 43 is fixedly connected with a horizontal shaft 3, the inner frame 42 is fixedly mounted on the outer portion of the inner frame mounting frame 43, the outer frame 44 is fixedly mounted on the outer portion of the inner frame 42, at least three fixed steel ring straight pull wires 48 are arranged between the outer frame 44 and the inner frame 42 to be connected, so that the fixed steel ring straight pull wires 48, the inner frame 42, the outer frame 44 and the plurality of groups of blades 41 are distributed in a central symmetry mode by taking the horizontal shaft 3 as the center, and specifically, the fixed steel ring straight pull wires 48 in the scheme adopt steel wire ropes extending along the radial direction of the horizontal shaft 3, and simultaneously, a plurality of inclined mutually pulled steel wire ropes can be added to connect the outer frame 44 with the inner frame 42, so that the strength and the stability of the structure of the wind wheel 4 are improved. In this case, the number of the blades 41 and the number of the wires can be determined according to the size of the wind wheel 4 and the wind power condition of the use area.

Referring to fig. 1 and 3, a plurality of sets of blades 41 are rotatably mounted on the outer frame 44, each set of blades 41 is composed of two sub-blades 411 and a connection lock 412 for connecting the two sub-blades 411 into one body, and the two sub-blades 411 are mounted on both sides of the outer frame 44. In the present case, the split blades 411 are provided with the eccentric shafts 47, the eccentric shafts 47 are hollow cylindrical pipe fittings, the extension lines of the eccentric shafts 47 deviate from the center of the split blades 411, flanges are arranged on two sides of the split blades 411, the connecting lock catches 412 specifically adopt bolts, and when the split blades are installed, the bolts penetrate through the flanges on the two split blades 411, and the two split blades 411 are locked through the bolts, so that the two split blades 411 are connected into a whole. The outer circle frame 44 is fixedly provided with a mounting column 46, and the eccentric shaft 47 is rotatably sleeved on the mounting column 46 through a bearing, so that the eccentric shaft 47 is rotatably connected with the mounting column 46. In addition, the eccentric shaft 47 can be connected with the inner frame 42 through mutual pulling of the steel wire rope, and the connection between the specific eccentric shaft 47 and the steel wire rope can be reliably connected by welding, tying or any connecting piece, so that the positioning of the blade 41 is assisted, and the stability of the blade 41 during operation can be further improved.

Referring to fig. 2 and 4, an elastic pulling member 45 for blocking the rotation of the blade 41 is disposed on the outer circular frame 44, and specifically, the elastic pulling member 45 in this case adopts a tension spring, one end of the tension spring is fixedly connected with the outer circular frame 44, and the other end of the tension spring is fixedly connected to one side of the blade 41.

The wind wheel 4 is provided with a brake assembly 8, and when the generator 6 reaches full load, the brake assembly 8 can drive the blades 41 to rotate until the blades 41 are parallel to the horizontal shaft 3. Specifically, the brake assembly 8 in the scheme comprises a brake stay 81 and a winch 82 for winding and unwinding the brake stay 81, the brake stay 81 is made of steel wires, the winch 82 is fixedly arranged on the outer circular frame 44, the winch 82 is controlled by the wind direction and wind speed controller 7, the movable end of the brake stay 81 is fixedly connected to one side of the blade 41, which is far away from the elastic pull piece 45, through early test, the wind speed of the generator 6 when the generator 6 is fully loaded is set, and when the wind speed of strong wind reaches the value when the generator 6 is fully loaded, the wind direction and wind speed controller 7 drives the winch 82 to wind the brake stay 81, so that the blade 41 rotates to be parallel to the horizontal shaft 3, and wind leakage braking is performed.

In this case, the plurality of blades 41 are connected to each other by wire ropes, and only one winding machine 82 is required to be arranged, so that the brake cable 81 can be pulled to drive the plurality of blades 41 to rotate in the same direction.

The embodiment of the application discloses an implementation principle of an off-axis blade and double-round-frame combined high-efficiency breeze uniform-speed generator, which comprises the following steps:

When strong typhoons come, the wind direction and wind speed controller 7 monitors that the wind speed reaches the full-load value of the generator 6, the wind direction and wind speed controller 7 can drive the windlass 82 to wind the brake stay wire 81, so that the blades 41 rotate to be parallel to the horizontal shaft 3, wind resistance is released, and when the wind speed is lower than the value, the wind direction and wind speed controller 7 drives the windlass 82 to unwind the brake stay wire 81, and the generator 6 can automatically enter normal power generation work.

Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner so long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of brevity and resource saving. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (8)

1. The utility model provides an off-axis blade and high-efficient breeze uniform velocity generator of two circular frame combination formula, includes support tower body (1), support tower body (1) top fixed mounting has carousel (11), carousel (11) top fixed mounting has organic storehouse (2), the rotation of quick-witted storehouse (2) front end is provided with horizontal axis (3), the front end of horizontal axis (3) is fixed and is provided with wind wheel (4), the rear end of horizontal axis (3) is connected with speed increaser (5), the output of speed increaser (5) is connected with generator (6), quick-witted outside in storehouse (2) is provided with wind direction wind speed controller (7) that are used for monitoring wind direction wind speed and control carousel (11) pivoted, wherein wind wheel (4) are including at least three group's blade (41), interior circle frame (42), interior circle frame mounting bracket (43) and outer circle frame (44), interior circle frame (42) are fixed connection, interior circle frame (42) are fixed mounting in the outside of interior circle frame (43), exterior frame (44) is fixed mounting in the outside of circle frame (41) and is provided with in outer circle frame (44) and is used for rotating in outer circle frame (41).

2. The high-efficiency breeze uniform generator with combined eccentric blades and double circular frames according to claim 1, wherein the elastic pulling piece (45) is a tension spring, one end of the tension spring is fixedly connected with the outer circular frame (44), and the other end of the tension spring is fixedly connected to one side of the blades (41).

3. The high-efficiency breeze uniform generator with combined eccentric blades and double circular frames according to claim 1 is characterized in that a brake assembly (8) is arranged on the wind wheel (4), and when the generator (6) is fully loaded, the brake assembly (8) can drive the blades (41) to rotate until the blades (41) are parallel to the horizontal shaft (3).

4. The high-efficiency breeze uniform generator with combined off-axis blades and double circular frames according to claim 3, wherein the brake assembly (8) comprises a brake stay wire (81) and a winch (82) for winding and unwinding the brake stay wire (81), the movable end of the brake stay wire (81) is fixedly connected to one side, away from the elastic pull piece (45), of the blade (41), and the winch (82) is controlled by a wind direction and wind speed controller (7).

5. The high-efficiency breeze uniform generator with combined type of the eccentric shaft blades and the double round frames as set forth in claim 1, wherein each group of blades (41) consists of two sub-blades (411) and a connecting lock catch (412) for connecting the two sub-blades (411) into a whole, the two sub-blades (411) are arranged on two sides of the outer round frames (44), mounting columns (46) are fixedly arranged on the outer round frames (44), the eccentric shaft (47) is arranged on the sub-blades (411), and the eccentric shaft (47) is rotationally connected with the mounting columns (46).

6. The high-efficiency breeze uniform generator combined by the off-axis blades and the double round frames as claimed in claim 5, wherein the extension line of the off-axis (47) is deviated from the center of the sub-blades (411).

7. The high-efficiency breeze uniform generator with combined off-axis blades and double circular frames according to claim 1, wherein at least three fixed steel ring straight pull wires (48) are arranged between the outer circular frame (44) and the inner circular frame (42) for connection, and a plurality of fixed steel ring straight pull wires (48), the inner circular frame (42), the outer circular frame (44) and a plurality of groups of blades (41) are distributed in a central symmetry manner by taking a horizontal shaft (3) as a center.

8. The high-efficiency breeze uniform generator with the combined type of the off-axis blades and the double round frames, which is disclosed in claim 1, is characterized in that a reinforcing seat (9) is fixedly arranged at the top of the machine cabin (2), and reinforcing pull pieces (91) for carrying out inclined pull support on two ends of the machine cabin (2) are arranged on the reinforcing seat (9).