CN210565909U - Brake device of wind driven generator - Google Patents
Brake device of wind driven generator Download PDFInfo
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- CN210565909U CN210565909U CN201921423573.XU CN201921423573U CN210565909U CN 210565909 U CN210565909 U CN 210565909U CN 201921423573 U CN201921423573 U CN 201921423573U CN 210565909 U CN210565909 U CN 210565909U
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- 238000003780 insertion Methods 0.000 claims description 29
- 230000037431 insertion Effects 0.000 claims description 28
- 238000012423 maintenance Methods 0.000 claims description 23
- 230000000670 limiting effect Effects 0.000 claims description 17
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000006185 dispersion Substances 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 229920001971 elastomer Polymers 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- 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
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Abstract
The utility model discloses a brake device of a wind driven generator, which comprises a first rotating shaft, a brake box, a hydraulic telescopic rod, a buffer disc, a fixed ring, an annular brake block and a brake disc; the driven end of the first rotating shaft is connected with the power input end of the generator, and the driving end of the first rotating shaft is connected with a brake disc, an annular brake block, a buffer disc, a fixing ring and a hydraulic telescopic rod which are arranged in sequence from the driving end to the driven end of the first rotating shaft; the fixed end of the hydraulic telescopic rod is connected with the inner wall of the brake box, and the hydraulic telescopic rod is an annular brake pad and is connected with the side surface of the buffer disc close to the brake disc; be provided with the brake groove on the brake disc, annular brake block can block into in the brake groove, and a plurality of can brake step by step, when guaranteeing to carry out normal brake, the life of extension annular brake block, the reaction force that produces during the brake can the buffering dish dispersion to solid fixed ring and the stability of buffering ring junction have been guaranteed.
Description
Technical Field
The utility model relates to a wind power generation field, concretely relates to aerogenerator brake arresting gear.
Background
With the development and utilization of pollution-free renewable energy sources, wind power generation is more and more emphasized by people. In recent years, people have increasingly high requirements on the control technology and safety of wind driven generators while rapidly developing the wind power industry.
The wind power generation equipment is in a natural environment, the wind speed changes greatly, if the wind speed is too large, the power generation efficiency of the generator is low, when the wind speed is too large, if a speed reduction braking measure is not timely taken for the wind power generator, the wind power generator exceeds the highest running rotating speed, the wind power generator is damaged, the existing brake is used for ensuring the braking performance of the wind power generator, most of the wind power generator is complex in structure and not convenient to replace, and the reverse force generated during braking easily enables the fixing device of the brake pad to generate torque, so that the working efficiency of the wind power generator is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the existing problem, the utility model provides a aerogenerator brake arresting gear through setting up a plurality of annular brake blocks and the brake groove that corresponds, solves and can brake step by step to when guaranteeing that this device can carry out normal brake, the life of improvement annular brake block that can be indirect reaches the effect that improves this device life through a plurality of annular brake blocks dispersion frictional force.
The utility model discloses a realize through following technical scheme: a brake device of a wind driven generator comprises a first rotating shaft, a brake box, a hydraulic telescopic rod, a buffer disc, a fixing ring, an annular brake pad and a brake disc; the driven end of the first rotating shaft is connected with the power input end of the generator, and the driving end of the first rotating shaft is connected with the power output end of the fan blade;
the brake disc, the annular brake block, the buffer disc, the fixing ring and the hydraulic telescopic rod are sequentially arranged from the driving end to the driven end of the first rotating shaft; the fixed end of the hydraulic telescopic rod is connected with the inner wall of the brake box, the free end of the hydraulic telescopic rod is connected with a fixing ring, and the fixing ring is connected with the buffer disc; the annular brake pad is connected with the side surface of the buffer disc close to the brake disc; the brake disc is provided with a brake groove, the annular brake block can be clamped into the brake groove,
the annular brake block comprises a plurality of coaxial brake blocks, the diameters of the coaxial brake blocks are sequentially increased from the axial center to the outside, and the widths of the coaxial brake blocks are sequentially decreased; the end face, opposite to the annular brake block, of the disc is provided with brake grooves, the number of the brake grooves is consistent with that of the brake block, the width, the depth and the diameter of each brake groove are correspondingly matched with the thickness, the width and the diameter of the plurality of brake blocks one by one, and the brake blocks can be clamped into the corresponding brake grooves;
one end of the buffer disc is provided with an annular sliding groove along the circumferential direction, an inserting rod groove is formed in the annular sliding groove, the annular brake pad is arranged on the fixed disc, an inserting rod is arranged between the fixed disc and the buffer disc, one end of the inserting rod is connected with the fixed disc, the other end of the inserting rod extends into the inserting rod groove, and an elastic body is arranged between the side wall of the inserting rod groove and the inserting rod;
the hydraulic telescopic rod is connected with the output end of the hydraulic system through a pipeline.
The width difference between two adjacent annular brake pads is equal to the depth difference of two adjacent brake grooves.
At least two arc-shaped sliding blocks are arranged in the insertion rod groove, one end of each arc-shaped sliding block is connected with the corresponding sliding block, and the other end of each arc-shaped sliding block abuts against one end, extending into the insertion rod groove, of the insertion rod; a cavity is arranged at a position corresponding to the arc-shaped sliding block, an elastic body and a sliding block are arranged in the cavity, two ends of the sliding block are respectively connected with the elastic body and the arc-shaped sliding block, one end of the arc-shaped sliding block, which extends into the cavity, is connected with the sliding block, a limiting block for limiting the sliding block is arranged at an opening of the cavity, and the sliding block and the elastic body are limited in the cavity by the limiting block; the two adjacent buffer discs are connected through the inserted rod, one end of the inserted rod extends into the inserted rod groove, and the other end of the inserted rod is fixedly connected with the other end face of each buffer disc.
The buffer disc comprises a first buffer disc, a second buffer disc and a third buffer disc, wherein one end of the first buffer disc is connected with the fixing ring, the other end of the first buffer disc is connected with the second buffer disc through an inserted link, and two ends of the second buffer disc are respectively connected with the first buffer disc and the third buffer disc through the inserted link; one end of the third buffer disc is connected with the annular brake pad fixing disc, one surface of the annular brake pad fixing disc is fixedly provided with an annular brake pad, the other surface of the annular brake pad fixing disc is fixedly provided with an insertion rod, and the insertion rod extends into an insertion rod groove of the third buffer disc and is connected with the third buffer disc.
The part of the inserted link extending into the inserted link groove is provided with an arc-shaped bulge for preventing the inserted link from separating from the inserted link groove.
The brake disc is connected with the first rotating shaft, a key groove and an inserting key which are used for preventing the brake disc from rotating relative to the first rotating shaft are arranged on the connecting surface of the brake disc and the first rotating shaft, the key groove and the inserting key are matched with each other, and a limiting bolt is arranged on one side of the brake disc.
The maintenance mouth is seted up at the top of brake box, and the length of maintenance mouth is greater than the diameter of brake disc, and the width of maintenance mouth is greater than the top of the thickness brake box of brake disc and is provided with the hoisting device who is used for promoting the brake disc, hoisting device includes locating lever, threaded rod, dead lever, snap ring and lifter plate, and locating lever and threaded rod setting are in the both sides of maintenance mouth, and the sliding sleeve is equipped with the threaded sleeve on the threaded rod, and the locating lever sets up the locating sleeve, and locating sleeve and threaded sleeve are connected respectively to the both ends of lifter plate, and the upper end of dead lever is connected at the middle part of lifter plate, and the lower extreme of dead lever passes the maintenance mouth snap ring, and the snap ring setting is in the brake disc outside.
The top of the brake box is provided with a three-phase asynchronous motor, and the active end of the threaded rod is connected with the output end of the three-phase asynchronous motor.
The driving end of the first rotating shaft is connected with the driven end of the second rotating shaft through a coupler, and the driving end of the second rotating shaft is connected with the fan blade.
The motor fixing base is arranged below the brake box and the generator and fixedly connected with the generator body, and a supporting block is arranged between the bottom surface of the brake box and the motor fixing base.
Compared with the prior art, the beneficial effects of the utility model are that: this device is through setting up the annular brake block of different width and different diameters, the annular brake block gets into the brake inslot on the brake disc in proper order, can brake step by step, thereby when guaranteeing that this device can carry out normal brake, the life of extension annular brake block that can be indirect, through annular brake block dispersion frictional force, reach the effect that improves this device life, and when producing the friction because annular brake block and brake groove, the reaction force that produces can be cushioned by the elasticity of elastomer in the cavity and weaken, thereby the stability of solid fixed ring and dashpot junction has been guaranteed, make the completion fixed work that it can be better.
Furthermore, the width difference between two adjacent annular brake pads is equal to the depth difference of two adjacent brake grooves, so that each annular brake pad and each brake groove can be ensured to correspond to each other, and corresponding friction resistance is generated.
Furthermore, the annular brake pad is provided with a buffer structure, so that the reverse torque of the annular brake pad on the fixing device can be effectively buffered, and the safety of the brake mechanism is improved.
Further, the maintenance mouth is seted up at the top of brake box, and the brake disc is maintained through maintenance mouth pull-out brake box through dead lever and snap ring, and is simple and convenient, and operation labour saving and time saving has solved the inconvenient problem of traditional maintenance to it is more practical to make this device.
Furthermore, the top of the brake box is provided with a lifting device, the lifting device adopts thread pair transmission to lift the brake disc, and the power of the lifting device adopts a motor, so that maintenance personnel can be reduced, and the brake disc can be maintained and replaced more conveniently.
Furthermore, the part of the inserted bar extending into the inserted bar groove is provided with an arc-shaped bulge for preventing the inserted bar from being separated from the inserted bar groove, so that the inserted bar can be effectively prevented from being separated from the inserted bar groove under the vibration working condition.
Furthermore, the hydraulic station drives the annular brake pad to move towards the direction of the brake disc, and the driving force is stable and reliable.
Furthermore, the driving end of the first rotating shaft is connected with the driven end of the second rotating shaft through a coupler, the driving end of the second rotating shaft is connected with the fan blade, and the two coaxial rotating shafts are arranged to facilitate installation, maintenance and replacement of driven end equipment.
Furthermore, the motor fixing base is arranged below the brake box and the generator and fixedly connected with the generator body, and a supporting block is arranged between the bottom surface of the brake box and the motor fixing base to reduce vibration.
Drawings
Fig. 1 is a schematic structural view of the structure of the present invention;
FIG. 2 is an enlarged schematic view of FIG. 1 at section I;
figure 3 is a side view of the brake disc with the structure of the invention;
FIG. 4 is a front view of the structural buffer tray of the present invention;
FIG. 5 is a schematic left side view partially in section of the structural buffer tray of the present invention;
3 FIG. 36 3 is 3 a 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 the 3 structure 3 of 3 the 3 present 3 invention 3; 3
FIG. 7 is a schematic view of the structural buffer disk of the present invention in partial cross-section from the right;
fig. 8 is a schematic partial sectional view of the buffering structure of the present invention.
In the figure: 1-machine body, 2-motor fixed base, 3-generator, 4-first rotating shaft, 5-brake box, 6-supporting block, 7-fan blade, 8-second rotating shaft, 9-positioning rod, 10-positioning sleeve, 11-connecting rod, 12-lifting plate, 13-threaded sleeve, 14-threaded rod, 15-stop block, 16-three-phase asynchronous motor, 17-fixing rod, 18-maintenance opening, 19-coupler, 20-sleeve, 21-hydraulic lifting device, 22-fixing ring, 23-buffer disc, 24-annular brake, 25-limit ring, 26-brake disc, 27-brake groove, 28-snap ring, 29-limit bolt, 30-insertion key, 31-sliding ring, 32-inserted rod, 33-annular sliding groove, 34-inserted rod groove, 35-sliding block, 36-cavity, 37-elastic body, 38-arc sliding block and 39-key groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 6, a brake device of a wind driven generator includes a machine body 1, a motor fixing base 2 is fixedly installed on one side of the machine body 1, a generator 3 is fixedly installed on one side of the top end of the motor fixing base 2, a power input end of the generator 3 is fixedly connected with a driven end of a first rotating shaft 4, a driving end of the first rotating shaft 4 extends into a brake box 5, a driving end of the first rotating shaft 4 is connected with a driven end of a second rotating shaft 8, and a driving end of the second rotating shaft 8 is fixedly installed with a fan blade 7; a coupling 19 is arranged between the driving end of the first rotating shaft 4 and the driven end of the second rotating shaft 8, supporting blocks 6 are respectively and fixedly installed at four corners of the bottom end of the brake box 5, the bottom ends of the supporting blocks 6 are fixedly connected with the top end of the motor fixing base 2, the other end of the second rotating shaft 8 penetrates through the machine body 1, and a fan blade 7 is fixedly installed at one end of the second rotating shaft 8, which penetrates through the machine body 1; the inner wall of one side, close to the generator, of the brake box 5 is fixedly connected with a sleeve 20, the first rotating shaft 4 penetrates through the sleeve 20 and is in rotary connection with the sleeve 20, a fixed ring 22 is fixedly installed at the suspended end of the sleeve 20, a hydraulic telescopic rod 21 is arranged between the fixed ring 22 and the inner wall of the brake box 5, the output end of the hydraulic telescopic rod 21 is connected with the fixed ring 22, and the fixed end of the hydraulic telescopic rod 21 is connected with the inner wall of the brake box 5; hydraulic telescoping rod 21 passes through the pipeline and is connected with hydraulic system's output, hydraulic system connects aerogenerator control system's output, when the wind speed is too big, the big motor control system of wind-force sends the brake instruction to hydraulic system, hydraulic system makes hydraulic telescoping rod 21 extension through its output, hydraulic telescoping rod 21 makes solid fixed ring 22, buffer disc 23 and annular brake block 24 remove to the direction of brake disc 26, annular brake block 24 one by one with the contact of brake groove 27 and through frictional force speed reduction to stopping.
The annular brake pad 24 comprises a plurality of coaxial brake pads, the diameters of the coaxial brake pads are sequentially increased from the axial center to the outside, and the widths of the coaxial brake pads are sequentially decreased; brake groove 27 is seted up with the relative terminal surface of annular brake block 24 to hull 26, the quantity of brake groove 27 with the quantity of brake block is unanimous, and width, the degree of depth and the diameter of brake groove 27 all with a plurality of the thickness, the width and the diameter one-to-one of brake block match, annular brake block 24 can block into its brake groove 27 that corresponds, and annular brake block 24's terminal surface can contact and play the braking action through friction with brake groove 27's bottom surface.
One end of the buffer disc 23 is provided with an annular sliding groove 33 along the circumferential direction, an insertion rod groove 34 is formed in the annular sliding groove 33, at least two arc-shaped sliding blocks 38 are arranged in the insertion rod groove 34, one end of each arc-shaped sliding block 38 is connected with a sliding block 35, and the other end of each arc-shaped sliding block is abutted to one end, extending into the insertion rod groove 34, of the insertion rod 32; a cavity 36 is arranged at a position corresponding to the arc-shaped sliding block 38, an elastic body 37 and a sliding block 35 are arranged in the cavity 36, two ends of the sliding block 35 are respectively connected with the elastic body 37 and the arc-shaped sliding block 38, one end of the arc-shaped sliding block 38 extending into the cavity 36 is connected with the sliding block 35, a limiting block for limiting the sliding block 35 is arranged at an opening of the cavity 36, and the sliding block 35 and the elastic body 37 are limited in the cavity 36 by the limiting block; two adjacent buffer discs 23 are connected by an insert rod 32, one end of the insert rod 32 extends into the insert rod groove 34, and the other end is fixedly connected with the other end face of the buffer disc.
The other end of the buffer disc 23 is provided with a sliding ring 31, the sliding ring 31 is fixedly provided with an inserting rod 32, the position of the inserting rod 32 corresponds to that of an inserting rod groove 34 on the other buffer disc 23, and two adjacent buffer discs 23 are connected through the inserting rod 32 extending into the inserting rod groove 34.
The buffer tray 23 includes a first buffer tray 231, a second buffer tray 232, and a third buffer tray 233, wherein one end of the first buffer tray 231 is connected to the fixing ring 22, the other end is connected to the second buffer tray 232 through the insertion rod 32, and both ends of the second buffer tray 232 are connected to the first buffer tray 231 and the third buffer tray 233 by the insertion rod 32, respectively.
One end of the third buffer disc 233 is connected with the annular brake pad fixing disc 40, one surface of the annular brake pad fixing disc 40 is fixedly provided with the annular brake pad 24, the other surface of the annular brake pad fixing disc 40 is fixedly provided with the inserted rod 32, and the inserted rod 32 extends into the inserted rod groove 34 of the third buffer disc 233 to be connected with the third buffer disc 233.
The portion of the plunger 32 extending into the plunger groove 34 is provided with an arc-shaped protrusion for preventing the plunger 32 from being separated from the plunger groove 34, after the plunger 32 extends into the plunger groove 34, the arc-shaped slider 38 is pressed against the side surface of the plunger groove 34, and the arc-shaped slider 38 clamps the plunger 32 in the plunger groove 34 by the arc-shaped protrusion.
As an alternative embodiment of the present invention, the elastic body 37 is a cylindrical spring or a cylindrical rubber body.
During fan brake braking, annular brake block 24 drives rather than the first buffer disk 23 rotation of being connected, with buffer disk 23 fixed connection's inserted bar 32, to arc slider 38 promotion arc slider 38, arc slider 38 exerts pressure to the elastomer 37 in cavity 36, and elastomer 37 absorbs its pressure impact, the utility model discloses be provided with three buffer disk 23, absorb pressure impact step by step, buffer disk 23 can effectively cushion the impact that disk brake block 24 brought when the brake, avoids brake disk 26 and annular brake block 24 to receive the rigidity and strikes, prolongs annular brake block 24 and brake disk 26's life-span.
One end of the fixing ring 22 close to the brake disc 26 is provided with a plurality of buffer discs 23, the buffer discs 23 are fixedly connected with the fixing ring 22, two adjacent two opposite side walls of the buffer discs 23 are respectively provided with a sliding ring 31, the sliding ring 31 is uniformly and fixedly connected with three insertion rods 32 along the circumferential direction, the free ends of the insertion rods 32 are provided with arc-shaped protrusions, the side wall of the buffer disc 23 on the other side is provided with an annular sliding groove 33, three insertion rod grooves 34 corresponding to the insertion rods 32 are uniformly and annularly and fixedly arranged on the annular sliding groove 33, three cavities 36 are uniformly and annularly arranged on the inner wall of the buffer disc 23, the side surfaces of the cavities 36 are arc-shaped, an elastic body 37 and a sliding block 35 are arranged in the cavities 36, one end of the elastic body 37 is connected with the inner wall of the cavity, the other end of the sliding block 35 is connected with the sliding block 35, the sliding block 35 slides, the other end of the arc-shaped sliding block 38 penetrates out of the cavity 36 and extends into the insertion rod groove 34, and the arc-shaped sliding block 38 can slide along the circumferential direction where the arc-shaped sliding block is located; a plurality of buffer trays 23 are connected in series,
the rightmost buffer disc 23 and the brake pad are fixedly connected by welding, the insertion rod 32 is firstly aligned with the insertion rod groove 34, referring to fig. 6, so that the arc-shaped sliding block 38 is forced to move into the cavity 36, the elastic body 37 is forced to be compressed, the sliding ring 31 enters the annular sliding groove 33, the shape of the insertion rod 32 is shown in the figure, and under the condition of no external force, because the arc-shaped sliding block 38 limits the displacement of the insertion rod 32 through the arc-shaped bulge on the insertion rod 32, two adjacent buffer discs 23 can be connected.
The buffer disc 23 close to one side of the fan blade 7 is fixedly provided with three annular brake pads 24, the width, the depth and the diameter of each brake slot 27 are correspondingly matched with the thickness, the width and the diameter of the plurality of coaxial brake pads one by one, the coaxial brake pads can be clamped into the corresponding brake slots 27, and the coaxial brake pads can slide in the brake slots 27; the first rotating shaft 4 is fixedly provided with an inserting key 30, the first rotating shaft 4 is fixedly provided with a limiting ring 25, and the limiting ring 25 is tightly attached to the inserting key 30; the brake disc 26 capable of sliding axially along the rotating shaft is sleeved on the first rotating shaft 4, a key groove 39 is formed in the brake disc 26, three brake grooves 27 are formed in one end, close to the annular brake block 24, of the brake disc 26, the inner diameters of the three brake grooves 27 are sequentially arranged from large to small, the sizes of the three brake grooves are in one-to-one correspondence with the annular brake block 24 respectively, the widths of the three brake grooves 27 are the same as the widths of the three annular brake blocks 24 respectively, and the axes of the brake grooves 27 are the same as the axes of the annular brake blocks 24; the upper screw of the first rotating shaft 4 is provided with a limiting bolt 29, the limiting bolt 29 is attached to the side wall of the brake disc 26 and used for limiting the axial position of the brake disc 26, particularly, the limiting brake disc 26 is provided with a maintenance port 18 towards the top end of the brake box 5, the top end of the brake box 5 is fixedly provided with a positioning rod 9, the positioning rod 9 is slidably connected with a positioning sleeve 10, the positioning sleeve 10 is fixedly connected with a connecting rod 11, the connecting rod 11 is fixedly connected with the driven end of a lifting plate 12, the lifting plate 12 is fixedly embedded with a threaded sleeve 13, the threaded sleeve 13 is arranged on a threaded rod 14, the threaded sleeve 13 moves up and down along the threaded rod 14, the top end of the threaded rod 14 is fixedly provided with a stop block 15, the bottom end of the threaded rod 14 is connected with the output end of a three-phase asynchronous motor 16, the bottom end of, fixed rod 17 is connected to lifter plate 12 bottom fixedly, and fixed rod 17 bottom fixed mounting has snap ring 28, the section of snap ring 28 is the U type, snap ring 28 cover is in the brake disc 26 outside, be equipped with the clearance between brake disc 26 and the snap ring 28, brake disc 26 can take place relative rotation with snap ring 28, and maintenance opening 18 is seted up directly over brake disc 26.
The length and width of the maintenance opening 18 are larger than the width and diameter of the snap ring 28 by 5-6 cm.
The annular brake plate 24 has a thickness equal to the width of the brake groove 27.
The limiting ring 25 is fixedly connected with the first rotating shaft 4 through welding.
The hydraulic telescopic rod 21 is connected with the hydraulic station through a pipeline.
As an alternative embodiment of the present invention, the thickness of the annular brake pad 24 increases with the diameter thereof, and the opening width of the brake groove 27 is equal to the thickness of the annular brake pad 24 having the same diameter.
The working principle is as follows: firstly, the device is fixed and installed, a plurality of buffer discs 23 are sequentially arranged and combined, a sliding ring 31 and an inserting rod 32 are aligned to an annular sliding groove 33 and an inserting rod groove 34 on the side wall of the adjacent buffer disc 23 for insertion, an arc-shaped sliding block 38 is forced to move in a cavity 36 at the moment, an elastic body 37 is forced to be compressed, the plurality of buffer discs 23 can be connected, then the side walls on the two sides of the plurality of buffer discs 23 are sequentially fixed with a fixed ring 22 and three annular brake pads 24, when the rotating speed of a generator 3 is too high due to overlarge wind power, a control system sends a command for starting a hydraulic telescopic rod to a hydraulic system, the hydraulic system provides thrust to a hydraulic telescopic rod 21 through an output end of the hydraulic telescopic rod, the hydraulic telescopic rod 21 is started, as shown in figure 1, the hydraulic telescopic rod 21 pushes the fixed ring 22 to move towards a brake disc 26, and simultaneously drives the plurality of buffer discs 23 to move towards the brake disc 26, the three annular brake blocks 24 sequentially enter the three brake grooves 27 on the brake disc 26, the widths of the corresponding three annular brake blocks 24 are different, the widths of the three brake grooves 27 are different, the wider annular brake block 24 firstly enters the corresponding brake groove 27, then the rest annular brake pads 24 enter in sequence to play a role of braking step by step, thereby ensuring that the device can indirectly prolong the service life of the annular brake pads 24 while braking normally, the friction force is dispersed by the three annular brake pads 24, the effect of prolonging the service life of the device is achieved, and when friction is generated between the annular brake pad 24 and the brake groove 27, the generated reaction force is dispersed and weakened by the elastic force of the elastic body 37 in the cavity 36, thereby ensuring the stability of the joint of the fixing ring 22 and the buffer disc 23 and leading the fixing ring to be capable of better finishing the fixing work.
When the maintenance work of the annular brake block 24 and the brake disc 26 is carried out, as shown in fig. 1, firstly, the generator 3 is disassembled, the limit bolt 29 on the first rotating shaft 4 is rotated, and then the first rotating shaft 4 moves leftwards together with the first rotating shaft 4, and at the moment, the first rotating shaft 4 is separated from the coupling 19; when the one end of first pivot 4 and brake disc 26 separation, spacing ring 25 lateral wall just in time with the laminating of sleeve 20 lateral wall this moment, fix in pivot 4 during spacing ring 25, when pivot 4 together with the motor when moving left, will make spacing ring 25 get into between a plurality of dashpot dish 23 and with the laminating of sleeve 20, start three-phase asynchronous machine 16, rotatory drive lifter plate 12 rebound through threaded rod 14, pull out brake box 5 through maintenance mouth 18 with brake disc 26 through dead lever 17 and snap ring 28 and maintain, and is simple and convenient, the operation labour saving and time saving, the inconvenient problem of traditional maintenance has been solved, thereby make this device more practical.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A brake device of a wind driven generator is characterized by comprising a first rotating shaft (4), a brake box (5), a hydraulic telescopic rod (21), a buffer disc (23), a fixing ring (22), an annular brake block (24) and a brake disc (26); the driven end of the first rotating shaft (4) is connected with the power input end of the generator (3), and the driving end of the first rotating shaft (4) is connected with the power output end of the fan blade (7);
the brake disc (26), the annular brake block (24), the buffer disc (23), the fixing ring (22) and the hydraulic telescopic rod (21) are sequentially arranged from the driving end to the driven end of the first rotating shaft (4); the fixed end of the hydraulic telescopic rod (21) is connected with the inner wall of the brake box (5), the free end of the hydraulic telescopic rod is connected with a fixing ring (22), and the fixing ring (22) is connected with a buffer disc (23); the annular brake pad (24) is connected with the side surface of the buffer disc (23) close to the brake disc (26); a brake groove (27) is arranged on the brake disc (26), the annular brake block (24) can be clamped in the brake groove,
the annular brake pad (24) comprises a plurality of coaxial brake pads, the diameters of the coaxial brake pads are sequentially increased from the axial center to the outside, and the widths of the coaxial brake pads are sequentially decreased; the end face, opposite to the annular brake block (24), of the disc (26) is provided with brake grooves (27), the number of the brake grooves (27) is consistent with that of the brake blocks, the width, the depth and the diameter of each brake groove (27) are correspondingly matched with the thickness, the width and the diameter of the plurality of brake blocks one by one, and the brake blocks can be clamped into the corresponding brake grooves (27);
one end of the buffer disc (23) is provided with an annular sliding groove (33) along the circumferential direction, an inserting rod groove (34) is formed in the annular sliding groove (33), the annular brake pad (24) is arranged on the fixed disc (40), an inserting rod (32) is arranged between the fixed disc (40) and the buffer disc (23), one end of the inserting rod (32) is connected with the fixed disc (40), the other end of the inserting rod (32) extends into the inserting rod groove (34), and an elastic body (37) is arranged between the side wall of the inserting rod groove (34) and the inserting rod (32);
the hydraulic telescopic rod (21) is connected with the output end of the hydraulic system through a pipeline.
2. Wind turbine brake actuating device according to claim 1, characterized in that the difference in width between two adjacent annular brake pads (24) is equal to the difference in depth between two adjacent brake grooves (27).
3. The wind driven generator brake device according to claim 1, wherein at least two arc-shaped sliding blocks (38) are arranged in the insertion rod groove (34), one end of each arc-shaped sliding block (38) is connected with the sliding block (35), and the other end of each arc-shaped sliding block abuts against one end, extending into the insertion rod groove (34), of the insertion rod (32); a cavity (36) is arranged at a position corresponding to the arc-shaped sliding block (38), an elastic body (37) and a sliding block (35) are arranged in the cavity (36), two ends of the sliding block (35) are respectively connected with the elastic body (37) and the arc-shaped sliding block (38), one end, extending into the cavity (36), of the arc-shaped sliding block (38) is connected with the sliding block (35), a limiting block for limiting the sliding block (35) is arranged at an opening of the cavity (36), and the sliding block (35) and the elastic body (37) are limited inside the cavity (36) by the limiting block; two adjacent buffer discs (23) are connected by an inserted bar (32), one end of the inserted bar (32) extends into the inserted bar groove (34), and the other end of the inserted bar is fixedly connected with the other end face of the buffer disc (23).
4. The wind driven generator brake device according to claim 3, wherein the buffer disc (23) comprises a first buffer disc (231), a second buffer disc (232) and a third buffer disc (233), wherein one end of the first buffer disc (231) is connected with the fixing ring (22), the other end of the first buffer disc is connected with the second buffer disc (232) through an insertion rod (32), and two ends of the second buffer disc (232) are respectively connected with the first buffer disc (231) and the third buffer disc (233) through the insertion rod (32); one end of the third buffer disc (233) is connected with the annular brake pad fixing disc (40), one surface of the annular brake pad fixing disc (40) is fixedly provided with the annular brake pad (24), the other surface of the annular brake pad fixing disc is fixedly provided with the inserted rod (32), and the inserted rod (32) extends into the inserted rod groove (34) of the third buffer disc (233) and is connected with the third buffer disc (233).
5. Wind turbine brake actuating apparatus according to claim 4, wherein the portion of the plunger (32) extending into the plunger groove (34) is provided with an arc-shaped protrusion preventing it from being separated from the plunger groove (34).
6. The wind driven generator brake device according to claim 4, characterized in that the brake disc (26) is connected with the first rotating shaft (4), the connecting surface of the brake disc (26) and the first rotating shaft (4) is provided with a key slot (39) and an inserting key (30) for preventing the brake disc and the first rotating shaft from rotating relatively, the key slot (39) and the inserting key (30) are matched with each other, and one side of the brake disc (26) is provided with a limit bolt (29).
7. The wind driven generator brake device according to claim 1, wherein a maintenance opening (18) is formed in the top of the brake box (5), the length of the maintenance opening (18) is greater than the diameter of the brake disc (26), a lifting device for lifting the brake disc (26) is arranged at the top of the brake box (5) with the width of the maintenance opening (18) greater than the thickness of the brake disc (26), the lifting device comprises a positioning rod (9), a threaded rod (14), a fixing rod (17), a snap ring (28) and a lifting plate (12), the positioning rod (9) and the threaded rod (14) are arranged on two sides of the maintenance opening, a threaded sleeve (13) is slidably sleeved on the threaded rod (14), the positioning rod (9) is provided with a positioning sleeve (10), two ends of the lifting plate (12) are respectively connected with the positioning sleeve (10) and the threaded sleeve (13), the middle part of the lifting plate (12) is connected with the upper end of the fixing, the lower end of the fixing rod (17) penetrates through a clamping ring (28) of the maintenance port (18), the clamping ring (28) is arranged on the outer side of the brake disc (26), a gap is reserved between the brake disc (26) and the clamping ring (28), and the maintenance port (18) is arranged right above the brake disc (26).
8. The wind driven generator brake device according to claim 7, wherein a three-phase asynchronous motor (16) is arranged at the top end of the brake box (5), and the active end of the threaded rod (14) is connected with the output end of the three-phase asynchronous motor (16).
9. The wind driven generator brake device according to claim 1, wherein the driving end of the first rotating shaft (4) is connected with the driven end of the second rotating shaft (8) through a coupler (19), and the driving end of the second rotating shaft (8) is connected with the fan blade (7).
10. The wind driven generator brake device according to claim 1, wherein the brake box (5) and the motor fixing base (2) below the generator (3), the motor fixing base (2) is fixedly connected with the machine body (1), and a supporting block (6) is arranged between the bottom surface of the brake box (5) and the motor fixing base (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921423573.XU CN210565909U (en) | 2019-08-29 | 2019-08-29 | Brake device of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921423573.XU CN210565909U (en) | 2019-08-29 | 2019-08-29 | Brake device of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210565909U true CN210565909U (en) | 2020-05-19 |
Family
ID=70634472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921423573.XU Withdrawn - After Issue CN210565909U (en) | 2019-08-29 | 2019-08-29 | Brake device of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210565909U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425235A (en) * | 2019-08-29 | 2019-11-08 | 中国华能集团清洁能源技术研究院有限公司 | A kind of wind-driven generator braking device |
| CN112661043A (en) * | 2020-12-29 | 2021-04-16 | 浙江西沃电梯有限公司 | Flat-layer anti-slip device with emergency braking function and suitable for elevator |
-
2019
- 2019-08-29 CN CN201921423573.XU patent/CN210565909U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425235A (en) * | 2019-08-29 | 2019-11-08 | 中国华能集团清洁能源技术研究院有限公司 | A kind of wind-driven generator braking device |
| CN110425235B (en) * | 2019-08-29 | 2024-06-21 | 中国华能集团清洁能源技术研究院有限公司 | Braking device of wind driven generator |
| CN112661043A (en) * | 2020-12-29 | 2021-04-16 | 浙江西沃电梯有限公司 | Flat-layer anti-slip device with emergency braking function and suitable for elevator |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200519 Effective date of abandoning: 20240621 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200519 Effective date of abandoning: 20240621 |