CN112983744A - Wind driven generator based on linear type grading wind power braking device - Google Patents
Wind driven generator based on linear type grading wind power braking device Download PDFInfo
- Publication number
- CN112983744A CN112983744A CN202110254849.1A CN202110254849A CN112983744A CN 112983744 A CN112983744 A CN 112983744A CN 202110254849 A CN202110254849 A CN 202110254849A CN 112983744 A CN112983744 A CN 112983744A
- Authority
- CN
- China
- Prior art keywords
- wind
- wind power
- brake
- braking
- free
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 71
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 238000010248 power generation Methods 0.000 claims abstract description 31
- 230000000670 limiting effect Effects 0.000 claims description 17
- 230000006698 induction Effects 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 13
- 230000013011 mating Effects 0.000 description 10
- 230000009471 action Effects 0.000 description 5
- 230000001939 inductive effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0244—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking
- F03D7/0248—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking by mechanical means acting on the power train
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to a wind power generator based on a linear type grading wind power brake device, comprising: the wind power generation device comprises a support frame, a power generation device, a wind power transmission device, a fan blade and a grading wind power braking device; the power generation device is arranged on the support frame and is in driving connection with the wind power transmission device; the wind power transmission device is in driving connection with the fan blades, and the grading wind power braking device is connected with the wind power transmission device; the hierarchical wind power brake device includes: the wind sail comprises a wind sail, a primary wind power braking mechanism and a secondary wind power braking mechanism, wherein the primary wind power braking mechanism is in driving connection with the wind sail, and the secondary wind power braking mechanism is in driving connection with the primary wind power braking mechanism; the primary wind braking mechanism and the secondary wind braking mechanism are also connected with a wind power transmission device. The wind driven generator based on the linear type graded wind power braking device disclosed by the invention realizes graded protection on the wind driven generator through the graded wind power braking device, and avoids overload operation of the wind driven generator, thereby prolonging the service life of the wind driven generator.
Description
Technical Field
The invention relates to the technical field of wind driven generators, in particular to a wind driven generator based on a linear type grading wind power braking device.
Background
Wind power generation is a process of converting wind energy into mechanical energy and then converting the mechanical energy into electric energy. The process does not need fuel, does not radiate, does not pollute the air and the environment, and therefore, the wind energy is clean energy.
However, the wind power input to the wind power generation apparatus is not artificially set, but is a magnitude of natural wind depending on the working environment in which the wind power generation apparatus is located, that is, a magnitude of wind power driving the wind power generation apparatus is not controllable. At present, the wind power generators on the market are easy to run under overload due to overlarge wind power, and finally, the wind power generation equipment is overloaded and burnt out.
Of course, when the wind power of the wind power generation equipment is too large, the protection function is started to protect the wind power generation equipment and prevent the wind power generation equipment from being burnt out due to overload operation. For example, in the invention patent with publication number CN104500337A, when the wind force is too large, the worker needs to manually operate the handle to start the protection device to realize the protection function. Through a manual protection mechanism, on one hand, the wind power needs to be monitored in real time, and the labor cost is high; on the other hand, a certain time is required from the moment that the worker learns that the wind power is too large to the moment that the worker manually completes the protection operation of the protection device, and in the time period, the wind power generation equipment is in an overload state. Therefore, the wind power generation equipment inevitably has an overload state, and thus the protection effect of the wind power generation equipment is not ideal. Moreover, the overload protection in the prior art cannot be adjusted according to the size of wind power, and the adaptive overload protection cannot be realized while ensuring the normal power generation of the wind driven generator.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a wind driven generator based on a linear type graded wind power braking device.
The purpose of the invention is realized by the following technical scheme:
a wind power generator based on a linear type grading wind power brake device comprises: the wind power generation device comprises a support frame, a power generation device, a wind power transmission device, a fan blade and a grading wind power braking device; the power generation device is arranged on the support frame and is in driving connection with the wind power transmission device; the wind power transmission device is in driving connection with the fan blades, and the grading wind power braking device is connected with the wind power transmission device;
the staged wind power brake device includes: the wind sail comprises a wind sail, a primary wind power braking mechanism and a secondary wind power braking mechanism, wherein the primary wind power braking mechanism is in driving connection with the wind sail, and the secondary wind power braking mechanism is in driving connection with the primary wind power braking mechanism; the primary wind braking mechanism and the secondary wind braking mechanism are also connected with the wind power transmission device.
In one embodiment, the staged wind brake device further comprises a guide base connected to the support frame;
the primary wind braking mechanism comprises: the brake unlocking device comprises a first wind power induction assembly, a first brake unlocking assembly and a first wind power brake assembly; the first wind power induction assembly comprises a first free slide block and a first return spring, the first free slide block is connected with the sail, and the first free slide block is arranged on the guide base in a sliding mode; one end of the first return spring is connected with the first free slide block, and the other end of the first return spring is connected with one end of the guide base;
the first braking unlocking assembly comprises a first supporting connecting rod and a first V-shaped transmission piece, the first supporting connecting rod is arranged on the supporting frame, and the first V-shaped transmission piece is rotatably sleeved on the first supporting connecting rod; the first V-shaped transmission part is provided with a first displacement induction end and a first braking lock catch end, the first free sliding block is provided with a first stepped guide groove, the first displacement induction end is connected to the first stepped guide groove in a sliding and clamping mode, and the first braking lock catch end is locked with or separated from the first wind power braking assembly;
the first wind brake assembly includes: the wind power transmission device comprises a first brake ratchet wheel, a first brake disc and a first brake unlocking piece, wherein the wind power transmission device comprises a transmission connecting rod; the first brake ratchet wheel is in driving connection with the transmission connecting rod; the first brake disc is movably sleeved on the transmission connecting rod; the first brake disc is arranged on the support frame and clamped on the outer wall of the first brake disc; first braking unlocking piece rotates and sets up on the first brake disc, just first braking unlocking piece with first braking hasp end hasp or separation.
In one embodiment, the first wind power brake assembly further includes a first limiting elastic sheet, and the first limiting elastic sheet is disposed on the first brake disc and abuts against the first brake unlocking piece, so that the first brake unlocking piece has a tendency of being locked with the first brake ratchet wheel.
In one embodiment, the wind driven generator based on the linear type grading wind power braking device is characterized by further comprising a protective shell, wherein the protective shell is arranged on the support frame, the protective shell is provided with an accommodating cavity, and the wind power transmission device and the power generation device are accommodated in the accommodating cavity; the grading wind power brake device is partially accommodated in the accommodating cavity.
In one embodiment, the sail is arranged outside the containing cavity; the grading wind power brake device also comprises a free connecting rod; one end of the free connecting rod is connected with the sail, and the other end of the free connecting rod extends into the containing cavity and is connected with the first free sliding block.
In one embodiment, the first support link is connected to an inner wall of the receiving cavity.
In one embodiment, the first brake release element has a first latch mating end and a first interlocking latch end, and the first latch mating end is latched or separated from the first brake latch end; the first linkage locking end is locked with or separated from the first brake ratchet wheel.
In one embodiment, the first linkage locking end has a first hook, and the first hook is locked or separated with the first ratchet groove of the first brake ratchet wheel.
In one embodiment, the primary wind brake mechanism is structurally identical to the secondary wind brake mechanism.
In one embodiment, the secondary wind braking mechanism comprises: the second wind power induction assembly, the second brake unlocking assembly and the second wind power brake assembly; the second wind power induction assembly comprises a second free sliding block and a second return spring, the second free sliding block is abutted against or separated from the first free sliding block, and the second free sliding block is arranged on the guide base in a sliding mode; one end of the second reset spring is connected with the second free sliding block, and the other end of the second reset spring is connected with the other end of the guide base.
The wind driven generator based on the linear type graded wind power braking device disclosed by the invention realizes graded protection on the wind driven generator through the graded wind power braking device, and avoids overload operation of the wind driven generator, thereby prolonging the service life of the wind driven generator.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of a linear type graded wind power brake device-based wind power generator according to the present invention;
FIG. 2 is a schematic view of a portion of the wind turbine shown in FIG. 1;
FIG. 3 is a schematic view of the staged wind brake shown in FIG. 2 with the sail removed;
FIG. 4 is a schematic view of a portion of the stepped wind brake assembly shown in FIG. 3;
FIG. 5 is a partially exploded view of the staged wind brake assembly shown in FIG. 3;
FIG. 6 is a schematic view of the second wind sensing assembly, the second brake release assembly and the guide base shown in FIG. 3;
FIG. 7 is an exploded view of the second wind sensing assembly and the second brake release assembly shown in FIG. 3;
FIG. 8 is a schematic illustration of the primary wind brake mechanism of FIG. 3 in a dormant state;
FIG. 9 is a schematic view of the primary wind brake mechanism of FIG. 3 in a braking state;
FIG. 10 is a schematic illustration of the staged wind brake device of FIG. 3 in a resting state;
FIG. 11 is a schematic view of the primary and secondary wind brake mechanisms of FIG. 3 in a braking position.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, the present invention discloses a wind power generator 10 based on a linear type graded wind power brake device, comprising: the wind power generation device comprises a support frame 20, a power generation device 30, a wind power transmission device 40, fan blades 50 and a grading wind power braking device 60; the power generation device 30 is arranged on the support frame 20, and the power generation device 30 is in driving connection with the wind power transmission device 40; the wind power transmission device 40 is in driving connection with the fan blades 50, and the grading wind power braking device 60 is connected with the wind power transmission device 40.
As shown in fig. 1 and 2, specifically, the stepped wind brake device 60 includes: the wind sail comprises a wind sail 100, a primary wind braking mechanism 200 and a secondary wind braking mechanism 300, wherein the primary wind braking mechanism 200 is in driving connection with the wind sail 100, and the secondary wind braking mechanism 300 is in driving connection with the primary wind braking mechanism 200; the primary wind braking mechanism 200 and the secondary wind braking mechanism 300 are also connected to the wind power transmission device 40.
As shown in fig. 3 and 4, in detail, the stepped wind brake 60 further includes a guide base 400 connected to the support frame 20. Wherein, first grade wind braking mechanism 200 includes: a first wind sensing assembly 210, a first brake unlocking assembly 220 and a first wind brake assembly 230.
As shown in fig. 4, in particular, the first wind sensing assembly 210 includes a first free slider 211 and a first return spring 212, the first free slider 211 is connected with the sail 100, and the first free slider 211 is slidably disposed on the guide base 400; one end of the first return spring 212 is connected to the first free slider 211, and the other end is connected to one end of the guide base 400.
As shown in fig. 4 and 5, specifically, the first braking unlocking assembly 220 includes a first supporting connecting rod 221 and a first V-shaped transmission member 222, the first supporting connecting rod 221 is disposed on the supporting frame 20 (as shown in fig. 1), and the first V-shaped transmission member 222 is rotatably sleeved on the first supporting connecting rod 221. The first V-shaped transmission member 222 has a first displacement-inducing end 223 and a first braking-locking end 224, the first free sliding block 211 has a first stepped guiding groove 213, the first displacement-inducing end 223 is slidably engaged with the first stepped guiding groove 213, and the first braking-locking end 224 is locked with or separated from the first wind-power braking assembly 230. In a preferred embodiment, the first displacement-sensing end 223 is provided with a first ball 225, and the first ball 225 is slidably engaged in the first stepped guide groove 213. This allows the first displacement sensing terminal 223 to be smoothly fitted with the first stepped guide groove 213. In addition, the first ball 225 is slidably engaged in the first stepped guide groove 213, which, on the one hand, achieves a limiting effect on the first ball 225 and prevents the first ball 225 from being disengaged from the first stepped guide groove 213; on the other hand, the state of the first V-shaped transmission member 222 is indirectly controlled by controlling the first displacement sensing terminal 223, so that the first V-shaped transmission member 222 is locked or unlocked with the first brake unlocking member 234, thereby controlling whether the stepped wind brake device 60 enters the braking state.
As shown in fig. 4, in particular, the first wind brake assembly 230 includes: a first brake ratchet wheel 231, a first brake disc 232, a first brake disc 233 and a first brake unlocking piece 234, and the wind power transmission device 40 comprises a transmission link 401. The first brake ratchet wheel 231 is connected with the transmission connecting rod 401; the first brake disc 232 is movably sleeved on the transmission connecting rod 401; the first brake disc 233 is arranged on the support frame 20, and the first brake disc 233 is clamped on the outer wall of the first brake disc 232; the first brake unlocking member 234 is rotatably disposed on the first brake disk 232, and the first brake unlocking member 234 is locked to or separated from the first brake locking end 224.
As shown in fig. 3 and 4, in particular, the first wind-force braking assembly 230 further includes a first limiting elastic sheet 235, and the first limiting elastic sheet 235 is disposed on the first brake disc 232 and abuts against the first braking unlocking piece 234, so that the first braking unlocking piece 234 tends to be locked with the first braking ratchet wheel 231. It should be noted that the first limiting elastic sheet 235 abuts against the first braking unlocking piece 234, so that the first braking unlocking piece 234 has a tendency of locking with the first braking ratchet 231; that is, the first limiting elastic sheet 235 provides a supporting force for the first braking unlocking piece 234, so that the gravity of the first braking unlocking piece 234 is overcome, and the first braking unlocking piece 234 is stably locked with the first braking ratchet wheel 231 to prevent unhooking; thereby ensuring the stability of the staged wind brake device 60 and providing reliable brake protection for the wind turbine 10, thereby improving the system stability of the wind turbine 10.
As shown in fig. 1, specifically, the wind power generator 10 based on the linear type graded wind power brake device further includes a protective housing 70, the protective housing 70 is disposed on the support frame 20, the protective housing 70 has an accommodating cavity 80, and the wind power transmission device 40 and the power generation device 30 are accommodated in the accommodating cavity 80; the stepped wind brake 60 is partially received in the receiving cavity 80.
As shown in fig. 1 and 4, in particular, the sail 100 is disposed outside the housing cavity 80; the staged wind brake 60 further includes a free link 500; one end of the free link 500 is connected to the sail 100, and the other end extends into the receiving cavity 80 and is connected to the first free slider 211. Specifically, the first support link 221 is connected to an inner wall of the receiving cavity 80.
Specifically, as shown in fig. 8, first brake release element 234 has a first latch mating end 236 and a first interlocking latch end 237, first latch mating end 236 being latched to or disengaged from first brake latch end 224; the first interlocking latch end 237 is latched to or released from the first detent ratchet 231.
As shown in fig. 8, in detail, the first linking locking end 237 has a first hook 238, and the first hook 238 is locked with or separated from the first ratchet groove 239 of the first braking ratchet wheel 231. Through the structural cooperation of the first hook 238 and the first ratchet groove 239, on one hand, the first linkage locking end 237 and the first braking ratchet wheel 231 are ensured to be easily locked; on the other hand, it is easy to ensure that the first interlocking latch end 237 is separated from the first braking ratchet wheel 231; thereby ensuring reliability and stability of the staged wind brake device 60.
Specifically, as shown in fig. 2 and 3, the primary wind brake mechanism 200 and the secondary wind brake mechanism 300 have the same structure. Secondary wind brake mechanism 300 includes: a second wind sensing assembly 310, a second brake release assembly 320 and a second wind brake assembly 330.
As shown in fig. 4, specifically, the second wind force sensing assembly 310 includes a second free slider 311 and a second return spring 312, the second free slider 311 abuts against or separates from the first free slider 211, and the second free slider 311 is slidably disposed on the guide base 400; one end of the second return spring 312 is connected to the second free slider 311, and the other end is connected to the other end of the guide base 400.
As shown in fig. 4 and fig. 5, specifically, the second braking unlocking assembly 320 includes a second supporting link 321 and a second V-shaped transmission member 322, the second supporting link 321 is disposed on the supporting frame 20, and the second V-shaped transmission member 322 is rotatably sleeved on the second supporting link 321. The second V-shaped transmission member 322 has a second displacement-inducing end 323 and a second braking-locking end 324, the second free slider 311 has a second stepped guiding groove 313, the second displacement-inducing end 323 is slidably engaged with the second stepped guiding groove 313, and the second braking-locking end 324 is locked with or separated from the second wind-force braking assembly 330. In a preferred embodiment, the second displacement-sensing end 323 is provided with a second ball 325, and the second ball 325 is slidably engaged with the second stepped guide groove 313. This allows the second displacement-sensing end 323 to smoothly engage with the second stepped guide groove 313. In addition, the second ball head 325 is slidably clamped in the second stepped guide groove 313, so that the second ball head 325 is limited on one hand, and the second ball head 325 is prevented from being separated from the second stepped guide groove 313; on the other hand, the state of the second V-shaped transmission member 322 is indirectly controlled by controlling the second displacement-sensing terminal 323, so that the locking or the unlocking of the second V-shaped transmission member 322 and the second brake unlocking member 334 is realized, thereby controlling whether the stepped wind brake device 60 enters the braking state.
As shown in fig. 3 and 4, specifically, the second wind brake assembly 330 includes: a second brake ratchet 331, a second brake disk 332, a second brake disk 333 and a second brake unlocking piece 334; the second brake ratchet 331 is in driving connection with the transmission connecting rod 401, and the second brake disc 332 is movably sleeved on the transmission connecting rod 401; the second brake disc 333 is arranged on the support frame 20 (shown in fig. 1), and the second brake disc 333 is clamped on the outer wall of the second brake disc 332; the second brake unlocking member 334 is rotatably disposed on the second brake disk 332, and the second brake unlocking member 334 is locked to or separated from the second brake locking end 324.
As shown in fig. 3 and 4, in particular, the second wind brake assembly 330 further includes a second limiting elastic sheet 335, and the second limiting elastic sheet 335 is disposed on the second brake disc 332 and abuts against the second brake unlocking element 334, so that the second brake unlocking element 334 has a tendency to lock with the second brake ratchet 331. It should be noted that the second limiting elastic sheet 335 abuts against the second braking unlocking element 334, so that the second braking unlocking element 334 has a tendency to lock with the second braking ratchet 331; that is, the second limiting elastic sheet 335 provides a supporting force for the second braking unlocking piece 334, so that the gravity of the second braking unlocking piece 334 is overcome, the second braking unlocking piece 334 is stably locked with the second braking ratchet 331, and unhooking is prevented; thereby ensuring stability of the staged wind brake device 60 and providing reliable braking protection for the wind turbine 10 (shown in fig. 1), thereby improving system stability of the wind turbine 10. Specifically, the second support link 321 is connected to the inner wall of the receiving cavity 80.
Specifically, as shown in fig. 4, the second detent release 334 has a second latch mating end 336 and a second interlocking latch end 337, the second latch mating end 336 being latched to or disengaged from the second detent latch end 324. The second linkage locking end 337 is locked to or unlocked from the second brake ratchet 331.
As shown in fig. 3, in particular, the second linkage locking end 337 has a second hook 338, and the second hook 338 is locked with or separated from a second ratchet groove (not shown) of the second brake ratchet 331. Through the structural cooperation of the second hook 338 and the second ratchet groove, on one hand, the second linkage locking end 337 and the second braking ratchet 331 are ensured to be easily locked; on the other hand, it is easy to ensure that the second interlocking locking end 337 is separated from the second detent ratchet 331; thereby ensuring reliability and stability of the staged wind brake device 60.
As shown in fig. 3 and 4, specifically, the guide base 400 has a linear guide groove 402, and the first free slider 211 is slidably disposed along the linear guide groove 402. The second free slider 311 is slidably disposed along the linear guide groove 402.
The operation principle of the wind power generator 10 of the linear staged wind power braking device is explained below (please refer to fig. 1 to 11):
setting a primary overload limit value and a secondary overload limit value for the wind power in advance; wherein the secondary overload limit is greater than the primary overload limit;
when the wind power is less than the first-level overload limit value, the graded wind power braking device 60 is in a dormant state, and the wind driven generator 10 is in a normal working state; at this time, the fan blades 50 induce the wind force of the natural wind and rotate under the action of the wind force, so as to drive the transmission connecting rods 401 of the wind power transmission device 40 to rotate together, and the power is input into the power generation device 30 through the transmission connecting rods 401 to generate power;
in the process, the first braking ratchet wheel 231 and the second braking ratchet wheel 331 rotate together with the transmission link 401; it should be further noted that, when the staged wind brake device 60 is in the dormant state, the first brake latch end 224 of the first V-shaped transmission member 222 hooks the first latch mating end 236 of the first brake release member 234, so that the first linkage latch end 237 of the first brake release member 234 is separated from the first ratchet groove 239 of the first brake ratchet wheel 231; this makes the first brake ratchet wheel 231 and the first brake disc 232 not linked, that is, the first brake ratchet wheel 231 keeps still while following the rotation of the transmission link 401;
in this state, the first free slider 211 is restored like one end of the guide base 400 by the elastic force of the first restoring spring 212; and, the second free slider 311 is restored like the other end of the guide base 400 by the elastic force of the second restoring spring 312; thereby causing first free slider 211 and second free slider 311 to maintain the separated state; therefore, similarly, there is no linkage between the second brake ratchet 331 and the second brake disk 332, that is, the second brake ratchet 332 keeps stationary while the second brake ratchet 331 rotates along with the transmission link 401;
it should be further noted that, as the wind power increases, the sail 100 drives the first free slide block 211 to move towards the direction close to the second free slide block 311 through the free link 500 under the action of the wind power; in this process, the first return spring 212 is continuously extended, and the first stepped guide groove 213 is continuously moved, so that the position of the first ball at the first stepped guide groove 213 is also continuously changed; of course, in this process, the first brake latch end 224 of the first V-shaped transmission piece 222 still hooks the first latch mating end 236 of the first brake release piece 234, so that the first linkage latch end 237 of the first brake release piece 234 is kept separated from the first ratchet groove 239 of the first brake ratchet wheel 231;
when the wind power increases to exceed a primary overload limit value and is less than a secondary overload limit value; the wind power braking device enters a braking state from a dormant state; at this time, only the primary wind braking mechanism 200 enters a braking state, and the secondary wind braking mechanism 300 does not enter the braking state;
the specific process is as follows: with the increase of wind power, the sail 100 further drives the first free slide block 211 to move towards the direction close to the second free slide block 311 through the free link 500 under the action of wind power; in the process, the first return spring 212 is further compressed, and the end of the first stepped guide groove 213 away from the second free slide 311 further moves towards the direction close to the first ball head, and finally the first ball head abuts against the end of the first stepped guide groove 213 away from the second free slide 311; specifically, in the process, the first V-shaped transmission member 222 rotates along the first support link 221 by an angle, and the first brake latch end 224 of the first V-shaped transmission member 222 is separated from the first latch mating end 236 of the first brake release member 234;
after the first latching locking end 224 is separated from the first latching mating end 236, under the action of its own weight and the action of the first limiting elastic sheet 235, the first interlocking locking piece 234 approaches the first latching ratchet wheel 231 with its first interlocking locking end 237 and finally latches with the first ratchet groove 239 of the first latching ratchet wheel 231; after the first brake unlocking piece 234 is locked with the first brake ratchet wheel 231, the first brake disc 232 and the first brake ratchet wheel 231 form linkage; thus, the first brake ratchet wheel 231 drives the first brake disc 232 to rotate together when rotating along with the transmission connecting rod 401; when the first brake disc 232 rotates, sliding friction is generated between the first brake disc 233 and the first brake disc 232, and the sliding friction force acts on the first brake disc 232 to decelerate the first brake disc 232, so that the transmission connecting rod 401 is decelerated indirectly through the first brake ratchet wheel 231; thereby preventing the wind power generator 10 from running in an overload mode due to the fact that the rotating speed of the transmission connecting rod 401 is too high caused by too large wind force;
in the braking state of the primary wind braking mechanism 200, as the wind force further increases, the first free slider 211 further approaches the second free slider 311 and finally pushes the second free slider 311 to move in a direction approaching the second return spring 312; when the wind power increases to exceed the secondary overload limit value, the secondary wind braking mechanism 300 also enters a braking state; at this time, the primary wind braking mechanism 200 and the secondary wind braking mechanism 300 simultaneously brake the transmission connecting rod 401, so that the transmission connecting rod 401 is decelerated;
it should be noted that the process of the secondary wind braking mechanism 300 entering the braking state is the same as the process of the primary wind braking mechanism 200 entering the braking state in principle, and is not described herein again;
the wind driven generator 10 based on the linear type grading wind power brake device realizes two-stage braking according to the size of wind power; when the wind power is greater than the primary overload limit value and less than the secondary overload limit value, the braking and the speed reduction are carried out only through the primary wind braking mechanism 200; when the wind speed is greater than the second-level overload limit value, the first-level wind braking mechanism 200 and the second-level wind braking mechanism are started simultaneously to perform two-level braking deceleration; through the graded braking, the wind driven generator 10 is protected more widely and more stably, and the phenomenon that the wind driven generator 10 runs in an overload mode due to the fact that the rotating speed of a transmission connecting rod 401 is too high due to overlarge wind power is avoided; in addition, through the graded braking, on one hand, the overload protection effect is ensured, on the other hand, the power generation work of the wind driven generator 10 is ensured to be more stable, and the normal power generation of the wind driven generator 10 cannot be influenced because the braking friction force is too large, or the ideal braking protection effect cannot be achieved because the braking friction force is too small;
moreover, the wind driven generator 10 can sense the wind power in real time, and instantly enters a braking state and carries out speed reduction processing when the wind power exceeds a corresponding overload limit value, so that the automatic braking is realized, and the braking is rapid and timely;
it should be further noted that, when the wind power decreases from high to low, the wind power generator 10 gradually releases the brake and returns to the sleep state when the wind power decreases to less than the first-level overload limit value; it should be noted that the process of releasing the brake is the reverse process of entering the braking state, and the process of releasing the brake is not described again;
it should be further noted that, in the wind power generator 10 of the present invention, when the wind speed is repeatedly shifted, the wind power braking mechanism freely and rapidly switches between different states according to the magnitude of the wind power in real time; therefore, the wind driven generator 10 is reliably protected in real time, and the wind driven generator 10 is ensured to generate power stably and continuously in real time.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A wind driven generator based on a linear type grading wind power brake device is characterized by comprising: the wind power generation device comprises a support frame, a power generation device, a wind power transmission device, a fan blade and a grading wind power braking device; the power generation device is arranged on the support frame and is in driving connection with the wind power transmission device; the wind power transmission device is in driving connection with the fan blades, and the grading wind power braking device is connected with the wind power transmission device;
the staged wind power brake device includes: the wind sail comprises a wind sail, a primary wind power braking mechanism and a secondary wind power braking mechanism, wherein the primary wind power braking mechanism is in driving connection with the wind sail, and the secondary wind power braking mechanism is in driving connection with the primary wind power braking mechanism; the primary wind braking mechanism and the secondary wind braking mechanism are also connected with the wind power transmission device.
2. The linear staged wind brake based wind turbine generator as defined in claim 1, wherein said staged wind brake further comprises a guide base connected to said support frame;
the primary wind braking mechanism comprises: the brake unlocking device comprises a first wind power induction assembly, a first brake unlocking assembly and a first wind power brake assembly; the first wind power induction assembly comprises a first free slide block and a first return spring, the first free slide block is connected with the sail, and the first free slide block is arranged on the guide base in a sliding mode; one end of the first return spring is connected with the first free slide block, and the other end of the first return spring is connected with one end of the guide base;
the first braking unlocking assembly comprises a first supporting connecting rod and a first V-shaped transmission piece, the first supporting connecting rod is arranged on the supporting frame, and the first V-shaped transmission piece is rotatably sleeved on the first supporting connecting rod; the first V-shaped transmission part is provided with a first displacement induction end and a first braking lock catch end, the first free sliding block is provided with a first stepped guide groove, the first displacement induction end is connected to the first stepped guide groove in a sliding and clamping mode, and the first braking lock catch end is locked with or separated from the first wind power braking assembly;
the first wind brake assembly includes: the wind power transmission device comprises a first brake ratchet wheel, a first brake disc and a first brake unlocking piece, wherein the wind power transmission device comprises a transmission connecting rod; the first brake ratchet wheel is in driving connection with the transmission connecting rod; the first brake disc is movably sleeved on the transmission connecting rod; the first brake disc is arranged on the support frame and clamped on the outer wall of the first brake disc; first braking unlocking piece rotates and sets up on the first brake disc, just first braking unlocking piece with first braking hasp end hasp or separation.
3. The linear graded wind power brake device-based wind power generator according to claim 2, wherein the first wind power brake assembly further comprises a first limiting elastic sheet, the first limiting elastic sheet is disposed on the first brake disc and abuts against the first brake unlocking member, so that the first brake unlocking member has a tendency to be locked with the first brake ratchet.
4. The linear graded wind power brake device based wind power generator according to claim 3, further comprising a protective housing disposed on the support frame, the protective housing having a receiving cavity, the wind power transmission device and the power generation device being received in the receiving cavity; the grading wind power brake device is partially accommodated in the accommodating cavity.
5. The linear staged wind brake based wind turbine generator as defined in claim 4, wherein said sail is disposed outside said housing cavity; the grading wind power brake device also comprises a free connecting rod; one end of the free connecting rod is connected with the sail, and the other end of the free connecting rod extends into the containing cavity and is connected with the first free sliding block.
6. The linear staged wind brake based wind turbine generator as defined in claim 4, wherein said first support link is connected to an inner wall of said housing cavity.
7. The linear staged wind power generator as defined in claim 3, wherein said first brake release member has a first catch engaging end and a first interlocking catch end, said first catch engaging end being engaged with or disengaged from said first catch end; the first linkage locking end is locked with or separated from the first brake ratchet wheel.
8. The linear staged wind-driven generator as defined in claim 3, wherein said first linkage locking end has a first hook, and said first hook is locked or separated with said first ratchet groove of said first braking ratchet.
9. The linear staged wind brake based wind turbine generator as defined in claim 2, wherein said primary wind brake mechanism is structurally identical to said secondary wind brake mechanism.
10. The linear staged wind brake based wind turbine generator as defined in claim 9, wherein said secondary wind brake mechanism comprises: the second wind power induction assembly, the second brake unlocking assembly and the second wind power brake assembly; the second wind power induction assembly comprises a second free sliding block and a second return spring, the second free sliding block is abutted against or separated from the first free sliding block, and the second free sliding block is arranged on the guide base in a sliding mode; one end of the second reset spring is connected with the second free sliding block, and the other end of the second reset spring is connected with the other end of the guide base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110254849.1A CN112983744B (en) | 2021-03-09 | 2021-03-09 | Wind driven generator based on linear type grading wind power braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110254849.1A CN112983744B (en) | 2021-03-09 | 2021-03-09 | Wind driven generator based on linear type grading wind power braking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112983744A true CN112983744A (en) | 2021-06-18 |
| CN112983744B CN112983744B (en) | 2023-06-06 |
Family
ID=76336114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110254849.1A Active CN112983744B (en) | 2021-03-09 | 2021-03-09 | Wind driven generator based on linear type grading wind power braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112983744B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349249A (en) * | 2008-09-05 | 2009-01-21 | 寸亚西 | Suspended type vertical shaft wind power generator apparatus |
| US20110169268A1 (en) * | 2010-01-13 | 2011-07-14 | Wei Jhen-You | Shaft brake mechanism of wind power generator |
| JP2014218975A (en) * | 2013-05-10 | 2014-11-20 | Tdk株式会社 | Wind-force power generator |
| US20140377062A1 (en) * | 2013-06-24 | 2014-12-25 | Siemens Aktiengesellschaft | Device and method for rotating a rotor of a wind turbine |
| EP3076041A1 (en) * | 2015-03-31 | 2016-10-05 | Special Constructor Byuro "PARUS" | Brake drive |
| CN207437267U (en) * | 2017-09-22 | 2018-06-01 | 泉州市君健智能家居设备有限公司 | A kind of power transmission electric network based on double locking is capable of the wind-driven generator of automatic protection |
| CN210736078U (en) * | 2019-09-10 | 2020-06-12 | 邢台职业技术学院 | Brake device with bidirectional braking function |
| CN211423217U (en) * | 2019-12-24 | 2020-09-04 | 江苏宝诚重工科技有限公司 | Braking device of wind driven generator |
| CN211737365U (en) * | 2020-01-20 | 2020-10-23 | 青岛理工大学 | Fan blade adjusting device of vertical wind driven generator |
-
2021
- 2021-03-09 CN CN202110254849.1A patent/CN112983744B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349249A (en) * | 2008-09-05 | 2009-01-21 | 寸亚西 | Suspended type vertical shaft wind power generator apparatus |
| US20110169268A1 (en) * | 2010-01-13 | 2011-07-14 | Wei Jhen-You | Shaft brake mechanism of wind power generator |
| JP2014218975A (en) * | 2013-05-10 | 2014-11-20 | Tdk株式会社 | Wind-force power generator |
| US20140377062A1 (en) * | 2013-06-24 | 2014-12-25 | Siemens Aktiengesellschaft | Device and method for rotating a rotor of a wind turbine |
| EP3076041A1 (en) * | 2015-03-31 | 2016-10-05 | Special Constructor Byuro "PARUS" | Brake drive |
| CN207437267U (en) * | 2017-09-22 | 2018-06-01 | 泉州市君健智能家居设备有限公司 | A kind of power transmission electric network based on double locking is capable of the wind-driven generator of automatic protection |
| CN210736078U (en) * | 2019-09-10 | 2020-06-12 | 邢台职业技术学院 | Brake device with bidirectional braking function |
| CN211423217U (en) * | 2019-12-24 | 2020-09-04 | 江苏宝诚重工科技有限公司 | Braking device of wind driven generator |
| CN211737365U (en) * | 2020-01-20 | 2020-10-23 | 青岛理工大学 | Fan blade adjusting device of vertical wind driven generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112983744B (en) | 2023-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110566419B (en) | Blade locking device, hub, impeller and wind generating set | |
| US20060153672A1 (en) | Furling wind turbine | |
| CN112983744A (en) | Wind driven generator based on linear type grading wind power braking device | |
| CN112796938A (en) | Wind driven generator based on multi-stage wind power braking device | |
| CN111237131A (en) | Wind power generator device for storage and protection when wind speed is too high | |
| CN109326967A (en) | A kind of power distribution cabinet intelligence guard system | |
| CN112523953A (en) | Wind driven generator based on separated overload protection | |
| CN112696314A (en) | Wind driven generator based on wind power braking mechanism | |
| CN112696316B (en) | Wind power size induction adjusting device and braking system suitable for wind driven generator | |
| CN112796937B (en) | Wind power size induction adjusting device based on elastic sheet and wind driven generator braking system | |
| CN218633753U (en) | A erection equipment that is used for having a safeguard function of photovoltaic power plant | |
| CN112696315B (en) | Rotary lifting type speed reducer and rotary lifting type braking system of wind driven generator | |
| CN112727679B (en) | Speed reduction device based on friction braking mechanism and wind driven generator braking system | |
| CN201747526U (en) | Braking structure of vertical shaft wind power generator | |
| CA3234928A1 (en) | Spacer end clamp | |
| CN112696322A (en) | Wind motor with self-protection function | |
| CN210352236U (en) | Stop gear and lawn mower | |
| CN201119317Y (en) | Double-push button control gear of mechanical brake pruner | |
| CN112523956B (en) | Permanent magnet wind driven generator with overload protection function | |
| CN112727681B (en) | Rope traction type speed reducing device and rope traction type braking system of wind driven generator | |
| CN112530135A (en) | Static fire scene alarm capable of adjusting alarm time | |
| CN212027982U (en) | Driving mechanism, blade locking device and wind generating set | |
| CN112727680A (en) | Swing brake type speed reducer and swing brake type brake system of wind driven generator | |
| CN112523952B (en) | Permanent magnet wind driven generator with torque gradient adjustment function | |
| JPS59134385A (en) | Safety device for wind force prime mover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |