CN209767321U - Speed-changing ring adjusting device for wind power generation - Google Patents
Speed-changing ring adjusting device for wind power generation Download PDFInfo
- Publication number
- CN209767321U CN209767321U CN201920488987.4U CN201920488987U CN209767321U CN 209767321 U CN209767321 U CN 209767321U CN 201920488987 U CN201920488987 U CN 201920488987U CN 209767321 U CN209767321 U CN 209767321U
- Authority
- CN
- China
- Prior art keywords
- ring
- driving
- steel belt
- speed
- belt shaft
- 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.)
- Expired - Fee Related
Links
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model relates to a variable speed adjusting device, in particular to a variable speed ring adjusting device for wind power generation, which comprises a steel belt shaft, wherein a steel belt groove and a lifting groove are arranged on the steel belt shaft; the lifting rod is slidably arranged in the lifting groove; the elastic piece is arranged between the lifting rod and the lifting groove; one end of the connecting cylinder is provided with a steel belt shaft; the diameters of the plurality of speed regulating rings are sequentially increased and are mutually sleeved together, the speed regulating rings are slidably arranged between the steel belt shaft and the connecting cylinder and sequentially extend and retract along the axis of the steel belt shaft, and the speed regulating rings are used for regulating the diameter of the steel belt shaft; and the driving device is arranged on the connecting cylinder and is used for sequentially driving the speed regulating ring to stretch and retract. The utility model provides a rotational speed that wind power generation used speed change ring adjusting device can adjust the generator reduces the fluctuation range of generator speed, and then reduces the capacity of converter, reduces the cost of converter to can be suitable for current double-fed asynchronous generation, synchronous generation and squirrel cage asynchronous generation.
Description
Technical Field
The utility model relates to a variable speed adjusting device, especially variable speed ring adjusting device for wind power generation.
Background
The rotating speed of the traditional double-fed asynchronous wind driven generator changes along with the change of the wind speed, the rotating speed range is large, generally 10.4-17.4rpm, therefore, a frequency converter with larger capacity is required to be configured, usually the capacity is +/-30%, the constant frequency power generation can be ensured, and the larger the capacity of the frequency converter is, the higher the price is.
the traditional synchronous power generation and squirrel-cage asynchronous power generation both need full-power frequency converters, and the full-power frequency converters are expensive.
SUMMERY OF THE UTILITY MODEL
in order to solve the above problem, the utility model provides a can the automatic adjustment generator speed, make generator speed fluctuation range less, reduce the capacity of converter, and then reduce the variable speed ring adjusting device for wind power generation of converter price, concrete technical scheme is:
The speed change ring adjusting device for wind power generation comprises a steel belt shaft, wherein a steel belt groove and lifting grooves are formed in the steel belt shaft, the steel belt groove is used for fixing one end of a steel belt, the lifting grooves are formed along the axis of the steel belt shaft, the number of the lifting grooves is not less than two, and the lifting grooves are arranged in an annular array along the axis of the steel belt shaft; the lifting rod is slidably arranged in the lifting groove, and the length of the lifting rod is not less than the width of the steel belt; the elastic piece is arranged between the lifting rod and the lifting groove; the connecting columns are fixed at one end of the steel belt shaft, the number of the connecting columns is not less than two, and the connecting columns are arranged in an annular array around the axis of the steel belt shaft; the connecting cylinder is provided with a steel belt shaft at one end and is fixed on the connecting cylinder, and the inner diameter of the connecting cylinder is larger than the outer diameter of the steel belt shaft; the speed regulation rings are arranged between the steel belt shaft and the connecting cylinder in a sliding mode and sequentially extend and retract along the axis of the steel belt shaft, the speed regulation rings are used for adjusting the diameter of the steel belt shaft, one end of each speed regulation ring is provided with a spacing groove, and the spacing grooves correspond to the connecting columns; and the driving device is arranged on the connecting cylinder and is used for sequentially driving the speed regulating ring to stretch and retract.
by adopting the technical scheme, the lifting rod prevents the steel belt from being directly pressed on the steel belt shaft when the steel belt shaft is rewound with the steel belt, so that a gap is reserved between the steel belt and the steel belt shaft, and the speed regulating ring can be conveniently extended or retracted.
the connecting column realizes the connection between the steel belt shaft and the connecting cylinder, and an installation space is reserved for the speed regulating ring.
The connecting cylinder is used for installing a driving device and is connected with a resetting device and accommodating a speed regulating ring, and the connecting cylinder realizes synchronous rotation with the steel belt shaft through a connecting column.
a plurality of speed governing rings stack to every speed governing ring homoenergetic is flexible alone, thereby realizes the regulation of different diameters, and the steel band winding is on the speed governing ring when the speed governing ring stretches out, and the steel band winding is epaxial at the steel band when the connecting cylinder is all retracted to the speed governing ring. The speed regulating ring sequentially extends out or retracts from the speed regulating ring in contact with the steel belt shaft, so that a gap is prevented from being generated between the speed regulating ring and the steel belt shaft, and the speed regulating ring is prevented from being extruded and deformed by the steel belt when the steel belt is tightened.
after the steel belt wound on the steel belt shaft is completely pulled out by the turntable, the steel belt connecting device arranged on the turntable releases the steel belt, the connecting cylinder is driven by the reset device to rewind the steel belt, meanwhile, the lifting rod is lifted under the action of the elastic part, and the driving device extends out of or retracts into the related speed regulating ring according to the instruction of the control system, so that the diameter adjustment of the steel belt shaft is realized, and the adjustment of the rotating speed is further realized.
Preferably, the steel belt shaft is a regular prism, and the steel belt groove and the lifting groove are respectively positioned on the outer side surface of the regular prism; the cross section of the speed regulating ring is a regular polygon, the speed regulating ring is matched with the steel belt shaft, and the avoiding groove is positioned on the side surface of the speed regulating ring.
Through adopting above-mentioned technical scheme, because be equipped with on the speed governing ring and keep away the groove, though the one end of speed governing ring still is connected, the junction is weak, and keeps away the groove and cut apart into a plurality of independent speed governing pieces with the speed governing ring almost, if the radial slip takes place for convex speed governing piece easily on the steel band shaft to intensity is relatively poor, easy deformation. The cross section of the speed regulating ring is a regular polygon, so that the strength of the speed regulating ring can be improved, namely reinforcing ribs are uniformly formed on two sides of the speed regulating sheet, the integral strength is high, the speed regulating sheet is not prone to deformation, the condition that the speed regulating sheet slides along the radial direction can be avoided when the steel belt shaft adopts a regular prism matched with the speed regulating ring, the stretching and retracting of the speed regulating ring can be guided, and the stretching stability and the stretching reliability of the speed regulating ring are improved.
preferably, the steel belt shaft support device further comprises an end support ring, the end support ring is fixed to the other end of the steel belt shaft, a plurality of support columns are arranged on the end support ring, and the support columns correspond to the connecting columns.
Through adopting above-mentioned technical scheme, form the constant head tank between the support column, the tip of speed governing ring is inserted in the constant head tank to make the tip support ring can fix the tip of speed governing ring when the speed governing ring stretches out, prevent effectively that the tip of speed governing ring from taking place radial offset, improve stability.
preferably, the connecting column and the supporting column are respectively provided with a guide groove, the guide grooves are communicated with the lifting groove, and two ends of the lifting rod are slidably arranged in the guide grooves.
through adopting above-mentioned technical scheme, the guide way leads to lifting the pole, prescribes a limit to the direction and the position that lifting the pole goes up and down to can prevent to lift the pole and break away from the lift groove.
Preferably, the elastic member is a cylindrical compression spring or a nitrogen spring.
Through adopting above-mentioned technical scheme, cylinder compression spring or nitrogen gas spring are reliable and stable, long service life.
Preferably, the speed regulating ring is also provided with a driving groove, and one side of the driving groove is provided with a driving rack; the driving device comprises a driving gear, and the driving gear is positioned on one side of the driving rack and meshed with the driving rack; the gear connecting pipe is rotatably inserted into the shaft hole of the connecting cylinder, and one end of the gear connecting pipe is fixed on the driving gear; the driving gear is positioned on the outer side of the connecting pipe and is fixed at the other end of the gear connecting pipe; the driving ring is rotatably arranged on the outer side surface of the connecting barrel and is coaxial with the connecting barrel, a plurality of arc-shaped racks are arranged on the driving ring, the arc-shaped racks are meshed with the driving gear, the driving ring is a first driving ring and a second driving ring respectively, and the first driving ring and the second driving ring are respectively positioned on two sides of the driving gear; the follow-up rotation device is fixed on the outer side surface of the connecting cylinder and is used for controlling the rotation or stop of the driving ring; the quantity of drive gear, gear connecting pipe, driving gear and arc rack all is unanimous with the quantity of speed governing ring, the diameter of gear connecting pipe increases in proper order, and length increases in proper order, the gear connecting pipe overlaps each other and is in the same place, and homoenergetic relative rotation, the axis range upon range of setting of gear connecting pipe is all followed to drive gear and driving gear, drive gear is corresponding with the drive rack on the speed governing ring respectively, the driving gear is corresponding with the arc rack respectively.
Through adopting above-mentioned technical scheme, when the driving ring followed the connecting cylinder and rotated, the arc rack on the driving ring drove the driving gear and rotated, and the driving gear passes through gear connecting pipe and drives drive gear rotation, and drive gear drives the drive rack and removes, and the drive rack drives the axis removal of speed governing ring along the steel band axle to realize stretching out and retracting of speed governing ring, and then realize the adjustment of steel band axle diameter.
because the arc rack on the drive ring is equipped with a plurality ofly, can drive the speed governing ring of different diameters in proper order and remove, and then realize the adjustment of a plurality of diameters of connecting cylinder.
Preferably, the rotation following device comprises a rotating device, the rotating device is fixed on the outer circular surface of the connecting cylinder, and the rotating device is used for driving the driving ring to rotate along with the connecting cylinder; and the stopping device is positioned on one side of the outer circular surface of the driving ring and is used for controlling the driving ring to stop rotating.
By adopting the technical scheme, the driving ring is stopped and rotates with the rotation of the rotating device and the stopping device, so that the extension and retraction of the speed regulating ring are controlled.
Preferably, the rotating device comprises a rotating seat, the rotating seat is fixed on the outer circular surface of the connecting cylinder, and a pressing groove is formed in the rotating seat; the pressing block is slidably arranged in the pressing groove; and the compression spring is positioned in the compression groove, two ends of the compression spring are respectively connected with the bottom of the compression groove and the compression block, and the compression spring compresses the compression block on the end surface of the driving ring.
Through adopting above-mentioned technical scheme, thereby compression spring compresses tightly the compact heap at the terminal surface of drive ring and realizes that the drive ring rotates along with the connecting cylinder.
Preferably, the stopping device comprises a stopping rotation seat, two stopping rotation grooves are formed in the top of the stopping rotation seat, a sliding groove is formed in one side of the stopping rotation seat and is located at the bottom of the stopping rotation seat, and the sliding groove is communicated with the stopping rotation grooves; the rotation stopping blocks are slidably arranged in the rotation stopping grooves, the bottom surfaces of the rotation stopping blocks, which are opposite to the bottoms of the sliding grooves, are lifting inclined surfaces, the rotation stopping blocks are provided with two rotation stopping blocks which are respectively a first rotation stopping block and a second rotation stopping block, and the lifting inclined surfaces of the first rotation stopping block and the lifting inclined surfaces of the second rotation stopping block are arranged in a positive and negative mode; the driving block is slidably mounted in the sliding groove, a first stopping rotating table and a second stopping rotating table are arranged on the driving block, driving inclined planes are arranged at the tops of the first stopping rotating table and the second stopping rotating table respectively, the driving inclined planes of the first stopping rotating table and the driving inclined planes of the second stopping rotating table are arranged in a positive and negative mode, the first stopping rotating block and the second stopping rotating block are slidably mounted on the first stopping rotating table and the second stopping rotating table respectively, and the lifting inclined planes are in sliding fit with the driving inclined planes; the stalling hydraulic cylinder is fixed on the other side of the stalling seat, and a piston rod of the stalling hydraulic cylinder is connected with the driving block; when the piston rod of the stalling hydraulic cylinder extends, the first stalling block is pressed on the first driving ring, the first driving ring stops rotating, the second stalling block is not contacted with the second driving ring, when the piston rod of the stalling hydraulic cylinder retracts, the second stalling block is pressed on the second driving ring, the second driving ring stops rotating, and the first stalling block is not contacted with the first driving ring.
By adopting the technical scheme, the first stop block and the second stop block can be pushed to be tightly pressed on the outer circular surface of the driving ring when the stop hydraulic cylinder is started, and the friction force of the first stop block and the second stop block is greater than the friction force between the driving ring and the pressing block, so that the driving ring stops rotating.
Preferably, the top surface of the rotation stopping block is an arc surface, the rotation stopping block faces the outer circular surface of the driving ring, and the arc surface is matched with the outer circular surface of the driving ring.
Through adopting above-mentioned technical scheme, the arcwall face has increased area of contact, has improved frictional force.
compared with the prior art the utility model discloses following beneficial effect has:
the utility model provides a rotational speed that wind power generation used speed change ring adjusting device can adjust the generator reduces the fluctuation range of generator speed, and then reduces the capacity of converter, reduces the cost of converter to can be suitable for current double-fed asynchronous generation, synchronous generation and squirrel cage asynchronous generation.
drawings
FIG. 1 is a schematic axial view of a variable speed ring adjustment device for wind power generation;
FIG. 2 is a front view of the shift ring adjustment device for wind power generation;
FIG. 3 is a schematic cross-sectional view of a variable speed ring adjustment device for wind power generation;
FIG. 4 is a schematic structural view of a steel belt shaft and connecting cylinder;
FIG. 5 is a schematic view of the first speed ring configuration;
FIG. 6 is a schematic view of an assembled structure of the driving gear, the gear connecting pipe and the driving gear;
FIG. 7 is a front view of the stop device;
3 FIG. 3 8 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 3 7 3; 3
FIG. 9 is a schematic structural diagram of a drive block;
Fig. 10 is a schematic structural diagram of the rotation stop block.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings.
As shown in fig. 1 to 10, the speed-change ring adjusting device for wind power generation comprises a steel belt shaft 11, wherein a steel belt groove 111 and a lifting groove 112 are arranged on the steel belt shaft 11, the steel belt groove 111 is used for fixing one end of a steel belt, the lifting groove 112 is arranged along the axis of the steel belt shaft 11, the number of the lifting grooves 112 is not less than two, and the lifting grooves 112 are arranged in an annular array along the axis of the steel belt shaft 11; the lifting rod 14 is arranged in the lifting groove 112 in a sliding mode, and the length of the lifting rod 14 is not less than the width of the steel strip; the elastic piece is arranged between the lifting rod 14 and the lifting groove 112; the connecting columns 114 are fixed at one end of the steel belt shaft 11, the number of the connecting columns 114 is not less than two, and the connecting columns 114 are arranged in an annular array around the axis of the steel belt shaft 11; a connecting cylinder 12, wherein one end of the connecting cylinder 12 is provided with a steel belt shaft 11, a connecting column 114 is fixed on the connecting cylinder 12, and the inner diameter of the connecting cylinder 12 is larger than the outer diameter of the steel belt shaft 11; the three speed regulation rings are arranged, the diameters of the three speed regulation rings are sequentially increased and are sleeved together, the speed regulation rings can slide relatively, the speed regulation rings are slidably mounted between the steel belt shaft 11 and the connecting cylinder 12 and sequentially extend and retract along the axis of the steel belt shaft 11, the speed regulation rings are used for adjusting the diameter of the steel belt shaft 11, one end of each speed regulation ring is provided with a position avoiding groove 1511, and the position avoiding grooves 1511 correspond to the connecting columns 114; and the driving device is arranged on the connecting cylinder 12 and is used for sequentially driving the speed regulating ring to stretch and retract.
The lifting rod 14 prevents the steel belt from being directly pressed on the steel belt shaft 11 when the steel belt shaft 11 winds the steel belt again, so that a gap is reserved between the steel belt and the steel belt shaft 11, and the speed regulating ring can extend out or retract conveniently.
the connecting stub 114 provides a connection between the belt shaft 11 and the connecting cylinder 12 and leaves an installation space for the speed ring.
The connecting cylinder 12 is used for installing a driving device and connecting with a resetting device and accommodating a speed regulating ring, and the connecting cylinder 12 and the steel belt shaft 11 realize synchronous rotation through the connecting column 114.
A plurality of speed governing rings stack to every speed governing ring homoenergetic is flexible alone, thereby realizes the regulation of 11 different diameters of steel band axle, and the steel band winding is on the speed governing ring when the speed governing ring stretches out, and the steel band winding is on steel band axle 11 when the connecting cylinder 12 is all withdrawn to the speed governing ring. The speed control ring starts to extend out or retract from the speed control ring in contact with the steel belt shaft 11 in sequence, so that a gap is prevented from being generated between the speed control ring and the steel belt shaft 11, and the speed control ring is prevented from being extruded and deformed by the steel belt when the steel belt is tightened.
After the steel belt wound on the steel belt shaft 11 is completely pulled out by the turntable, the steel belt connecting device arranged on the turntable releases the steel belt, the connecting cylinder 12 is driven by the reset device to rewind the steel belt, meanwhile, the lifting rod 14 is lifted under the action of the elastic part, and the driving device extends out or retracts into a related speed regulating ring according to the instruction of the control system, so that the diameter adjustment of the steel belt shaft 11 is realized, and the adjustment of the rotating speed is further realized.
Specifically, the number of the speed regulation rings is three, and the speed regulation rings are respectively a first speed regulation ring 151, a second speed regulation ring 152 and a third speed regulation ring 153, the first speed regulation ring 151 is movably sleeved on the steel belt shaft 11, the second speed regulation ring 152 is sleeved on the first speed regulation ring 151, the third speed regulation ring 153 is sleeved on the second speed regulation ring 152, and the third speed regulation ring 153 is located at the inner circular surface of the connecting cylinder 12. The speed regulating rings are basically the same in structure and only different in diameter.
the steel belt shaft 11 is a regular prism, and the steel belt groove 111 and the lifting groove 112 are respectively positioned on the outer side surface of the regular prism; the cross section of speed governing ring is regular polygon, and speed governing ring and steel band axle 11 phase-match keep away position groove 1511 and lie in the side of speed governing ring.
Because the speed adjusting ring is provided with the avoiding groove 1511, although one end of the speed adjusting ring is still connected, the connection part is weak, the avoiding groove 1511 almost divides the speed adjusting ring into a plurality of independent speed adjusting sheets, if the arc-shaped speed adjusting sheets easily slide on the steel belt shaft 11 in the radial direction, and the arc-shaped speed adjusting sheets have poor strength and are easy to deform. The cross section of the speed regulating ring is a regular polygon, so that the strength of the speed regulating ring can be improved, namely reinforcing ribs are uniformly formed on two sides of the speed regulating sheet, the integral strength is high, the speed regulating sheet is not prone to deformation, the condition that the speed regulating sheet slides along the radial direction can be avoided when the steel belt shaft 11 is a regular prism matched with the speed regulating ring, the speed regulating ring can be guided by stretching out and retracting, and the telescopic stability and reliability of the speed regulating ring are improved.
The steel belt shaft connecting device further comprises an end supporting ring 13, the end supporting ring 13 is fixed at the other end of the steel belt shaft 11, a plurality of supporting columns 131 are arranged on the end supporting ring 13, and the supporting columns 131 correspond to the connecting columns 114.
Form constant head tank 132 between the support column 131, insert in constant head tank 132 the tip of speed governing ring to make tip support ring 13 can fix the tip of speed governing ring when the speed governing ring stretches out, effectively prevent that the tip of speed governing ring from taking place radial offset, improve stability.
Guide grooves are formed in the connecting column 114 and the supporting column 131, the guide grooves are communicated with the lifting groove 112, and two ends of the lifting rod 14 are slidably mounted in the guide grooves. The guide groove guides the lifting rod 14, defines the direction and position in which the lifting rod 14 is lifted, and prevents the lifting rod 14 from being separated from the lifting groove 112.
The elastic piece is a cylindrical compression spring or a nitrogen spring. The cylindrical compression spring or the nitrogen spring is stable and reliable and has long service life.
A driving groove 1513 is further formed in the speed regulating ring, and a driving rack is arranged on one side of the driving groove 1513; the driving device comprises a driving gear, the driving gear is positioned between the steel belt shaft 11 and the connecting cylinder 12, and the driving gear is positioned on one side of the driving rack and meshed with the driving rack; the gear connecting pipe is rotatably inserted into the shaft hole of the connecting cylinder 12, and one end of the gear connecting pipe is fixed on the driving gear; the driving gear is positioned on the outer side of the connecting pipe and is fixed at the other end of the gear connecting pipe; the driving ring is rotatably arranged on the outer side surface of the connecting cylinder 12 and is coaxial with the connecting cylinder 12, a plurality of arc-shaped racks are arranged on the driving ring, the arc-shaped racks are meshed with the driving gear, the driving ring is a first driving ring 161 and a second driving ring 162, and the first driving ring 161 and the second driving ring 162 are respectively positioned on two sides of the driving gear; the follow-up rotation device is fixed on the outer side surface of the connecting cylinder 12 and is used for controlling the rotation or stop of the driving ring; the number of drive gear, gear connecting pipe, driving gear and arc rack all is unanimous with the quantity of speed governing ring, gear connecting pipe's diameter increases in proper order, and length increases in proper order, and gear connecting pipe overlaps each other and is in the same place, and homoenergetic relative rotation, drive gear and driving gear all set up along gear connecting pipe's axis is range upon range of, drive gear respectively with the speed governing ring on drive the rack corresponding, the driving gear is corresponding with the arc rack respectively.
When the driving ring rotates along with the connecting cylinder 12, the arc-shaped rack on the driving ring drives the driving gear to rotate, the driving gear drives the driving gear to rotate through the gear connecting pipe, the driving gear drives the driving rack to move, and the driving rack drives the speed regulating ring to move along the axis of the connecting cylinder 12, so that the extension and retraction of the speed regulating ring are realized, and the diameter of the connecting cylinder 12 is adjusted.
Because the arc-shaped racks on the driving ring are provided with a plurality of arc-shaped racks, the speed regulating rings with different diameters can be sequentially driven to move, and then the adjustment of a plurality of diameters of the connecting cylinder 12 is realized.
The two sets of driving gears, the gear connecting pipes and the driving gears are symmetrically arranged on two sides of the steel belt shaft and used for improving the stability of the speed regulating ring when the speed regulating ring extends out or retracts, and the phenomenon that the speed regulating ring is clamped between the steel belt shaft and the connecting cylinder due to single-side stress is avoided.
Specifically, the driving gears include a first driving gear 171, a second driving gear 172, and a third driving gear 173.
The gear connection pipe includes a first gear connection pipe 174, a second gear connection pipe 175, and a third gear connection pipe 176.
The driving gears include a first driving gear 177, a second driving gear 178, and a third driving gear 179.
The arc-shaped racks on the driving ring comprise a first arc-shaped rack 165, a second arc-shaped rack 166 and a third arc-shaped rack 167, and the first arc-shaped rack 165, the second arc-shaped rack 166 and the third arc-shaped rack 167 are symmetrically arranged in two and are arranged in sequence.
two first driving racks 1512 are arranged on the first speed regulation ring 151, two second driving racks are arranged on the second speed regulation ring, and two third driving racks are arranged on the third speed regulation ring 153.
The first driving gear 171 and the first driving gear 177 are respectively installed at both ends of the first gear connecting pipe 174, the first gear connecting pipe 174 may be a solid shaft, the first driving gear 171 is engaged with the first driving rack 1512, and the first driving gear 177 is engaged with the first arc-shaped rack 165 on the driving ring.
The second driving gear 172 and the second driving gear 178 are respectively installed at both ends of the second gear connecting pipe 175, the second gear connecting pipe 175 is movably sleeved on the first gear connecting pipe 174, the second driving gear 172 is engaged with the second driving rack, and the second driving gear 178 is engaged with the second arc-shaped rack 166 on the driving ring.
the third driving gear 173 and the third driving gear 179 are respectively installed at two ends of the third gear connecting pipe 176, the third gear connecting pipe 176 is movably sleeved on the second gear connecting pipe 175, the third driving gear 173 is engaged with the third driving rack, and the third driving gear 179 is engaged with the third arc-shaped rack 167 on the driving ring.
the three speed regulating rings respectively extend out or retract in sequence.
The follow-up rotation device comprises a rotation device, the rotation device is fixed on the outer circular surface of the connecting cylinder 12, and the rotation device is used for driving the driving ring to rotate along with the connecting cylinder 12; and the stopping device is positioned on one side of the outer circular surface of the driving ring and is used for controlling the driving ring to stop rotating.
The rotating means are respectively located at one side of the first drive ring 161 and the second drive ring 162.
specifically, the rotating device comprises a rotating seat 181, the rotating seat 181 is fixed on the outer circumferential surface of the connecting cylinder 12, and a pressing groove is formed in the rotating seat 181; the pressing block 183 is arranged in the pressing groove in a sliding mode; and the compression spring 182 is positioned in the compression groove, two ends of the compression spring 182 are respectively connected with the bottom of the compression groove and the compression block 183, and the compression spring 182 compresses the compression block 183 on the end surface of the driving ring.
the compression spring 182 compresses the compression block 183 against the end surface of the drive ring to achieve rotation of the drive ring with the connecting cylinder 12.
The stopping device comprises a stopping rotation seat 184, two stopping rotation grooves are arranged at the top of the stopping rotation seat 184, a sliding groove is arranged at one side of the stopping rotation seat 184, the sliding groove is positioned at the bottom of the stopping rotation seat 184, and the sliding groove is communicated with the stopping rotation grooves; the stop block is slidably arranged in the stop groove, the bottom surface of the stop block, which is opposite to the bottom of the slide groove, is a lifting inclined surface 1861, two stop blocks are arranged, and are respectively a first stop block 186 and a second stop block 187, and the lifting inclined surface 1861 of the first stop block 186 and the lifting inclined surface 1861 of the second stop block 187 are arranged in a positive and negative way; the driving block 185 is slidably mounted in the sliding groove, the driving block 185 is provided with a first stall 1851 and a second stall 1852, the tops of the first stall 1851 and the second stall 1852 are both provided with a driving inclined plane 1853, the driving inclined plane 1853 of the first stall 1851 and the driving inclined plane 1853 of the second stall 1852 are arranged in a positive and negative way, the first stall 186 and the second stall 187 are slidably mounted on the first stall 1851 and the second stall 1852 respectively, and the lifting inclined plane 1861 is in sliding fit with the driving inclined plane 1853; the stalling hydraulic cylinder 188 is fixed on the other side of the stalling base 184, and a piston rod of the stalling hydraulic cylinder 188 is connected with the driving block 185; when the piston rod of the stalling hydraulic cylinder 188 extends, the first stopping block 186 is pressed against the first driving ring 161, the first driving ring 161 stops rotating, the second stopping block 187 is not contacted with the second driving ring 162, when the piston rod of the stalling hydraulic cylinder 188 retracts, the second stopping block 187 is pressed against the second driving ring 162, the second driving ring 162 stops rotating, and the first stopping block 186 is not contacted with the first driving ring 161.
When the stalling hydraulic cylinder 188 is started, the first stalling block 186 or the second stalling block 187 can be pushed to be pressed on the outer circular surface of the driving ring, and the friction force of the first stalling block 186 and the second stalling block 187 is larger than the friction force between the driving ring and the pressing block 183, so that the driving ring stops rotating. The stalling hydraulic cylinder 188 has three working positions, the middle position controls the first stalling block 186 and the second stalling block 187 not to press the driving ring, and the driving ring rotates along with the connecting cylinder 12; when the stalling hydraulic cylinder 188 extends, the first stalling block 186 is controlled to press the first driving ring 161; stall cylinder 188, when retracted, controls second stall block 187 to compress second drive ring 162.
The top surface of the rotation stopping block is an arc-shaped surface 1862, the rotation stopping block faces the outer circular surface of the driving ring, and the arc-shaped surface 1862 is matched with the outer circular surface of the driving ring.
The arc 1862 increases the contact area and improves the friction.
The variable speed ring adjusting device for wind power generation is used in a novel wind power generation system, two turntables are installed on a wind power main shaft, a connecting device is installed on each turntable, the connecting device is connected with one end of a steel belt, the other end of each steel belt is connected with a steel belt shaft 11, each steel belt shaft 11 is connected with a transmission shaft through a clutch, two variable speed ring adjusting devices for wind power generation are installed on each transmission shaft, each transmission shaft is further connected with a generator, a connecting cylinder 12 of the variable speed ring adjusting device for wind power generation is connected with a resetting device, and the resetting device is used for rewinding the steel belts by the steel belt. The transmission shaft is connected with a generator. The rotary table is driven by the paddle to rotate, the rotary table pulls the steel belt shaft 11 to rotate through the steel belt, the steel belt shaft 11 drives the transmission shaft to rotate through the clutch, and the transmission shaft drives the generator to rotate. When the carousel passes through steel band pulling steel band axle 11 and rotates, the clutch is closed, steel band axle 11 drives generator work, after the steel band pulls open from steel band axle 11, the steel band passes through connecting device and carousel separation, the steel band slides on the carousel, steel band axle 11 is at resetting means's effect rewinding steel band, and flexible speed governing ring realizes the diameter adjustment of steel band axle 11 at this moment, the rotational speed also changes when the diameter of steel band winding on steel band axle 11 changes and drives the transmission shaft rotation, and then the rotational speed adjustment of realization generator, thereby reduce generator pivoted fluctuation range. When one steel belt is wound, the other steel belt drives the other steel belt shaft 11 to rotate, so that the generator continuously works.
when the diameter of the steel belt shaft 11 is adjusted, the steel belt shaft 11 and the connecting cylinder 12 rotate under the action of a resetting device, at the moment, the first driving ring 161 and the second driving ring 162 rotate along with the connecting cylinder 12 under the action of the pressing block 183, the control system controls the extension and retraction of the speed adjusting ring according to the speed which needs to be adjusted, when the diameter of the steel belt shaft 11 needs to be increased, the stalling hydraulic cylinder 188 controls the first stalling block 186 to extend, the first stalling block 186 presses against the outer circular surface of the first driving ring 161, the first driving ring 161 stops rotating, the second driving ring 162 continues to rotate along with the connecting cylinder 12, the connecting cylinder 12 drives the driving gears to rotate, when the first driving gear 177 contacts with the first arc-shaped rack 165 on the first driving ring 161, the first arc-shaped gear 165 drives the first driving gear 177 to rotate, the first driving gear 177 drives the first rotating driving gear 171 to rotate through the first gear connecting pipe 174, the first driving gear 171 drives the first driving rack 1512 to move, and the first driving rack 1512 drives the first speed adjusting ring 151 to extend. If the second speed regulation ring 152 and the third speed regulation ring 153 need to extend, the first stop block 186 is kept pressed on the first driving ring 161, the second arc-shaped rack 166 and the third arc-shaped rack 167 sequentially drive the second driving gear 178 and the third driving gear 179, the second driving gear 178 and the third driving gear 179 sequentially drive the second driving gear 172 and the third driving gear 173, the second driving gear 172 and the third driving gear 173 sequentially drive the driving racks on the second speed regulation ring 152 and the third speed regulation ring 153 to move, the driving racks drive the second speed regulation ring 152 and the third speed regulation ring 153 to extend sequentially, then the stop hydraulic cylinder 188 controls the first stop block 186 to retract, and the first driving ring 161 rotates along with the connecting cylinder 12 under the action of the pressing block 183. The sequential extension of the first speed ring 151, the second speed ring 152 and the third speed ring 153 can be controlled by adopting the above method. When the first speed adjusting ring 151 needs to be retracted, the stalling hydraulic cylinder 188 controls the second stalling block 187 to press on the second driving ring 162, the second driving ring 162 stops rotating, the first driving ring 161 rotates along with the connecting cylinder 12, when the third driving gear 179 contacts with the third arc-shaped rack 167 on the second driving ring 162, the third arc-shaped rack 167 drives the third driving gear 179 to rotate reversely, so that the retraction of the third speed adjusting ring 153 is realized, and then the retraction of the second speed adjusting ring 152 and the first speed adjusting ring 151 is realized in sequence.
The variable speed ring adjusting device for wind power generation can realize step speed regulation.
The application of the variable speed ring adjusting device for wind power generation in a doubly-fed asynchronous generator system is as follows:
the variable speed ring adjusting device for wind power generation stabilizes the input rotating speed of the generator to fluctuate within a small range of +/-5% - +/-10%, thereby realizing the reduction of the capacity of a frequency converter, and ensuring constant frequency power generation by selecting the frequency converter with smaller capacity. And the smaller the capacity of the frequency converter is, the lower the price is, and the cost is reduced.
the application of the variable speed ring adjusting device for wind power generation in a synchronous generator system comprises the following steps:
the speed-changing ring adjusting device for wind power generation is matched with impeller small-range rotation speed fluctuation and self-balancing adjustment of synchronous generator phase lead, synchronous rotation speed of a synchronous generator in grid-connected operation is guaranteed, and constant-frequency power generation can be achieved without configuring a full-power frequency converter. The synchronous generator is very friendly to a power grid, the fan does not have the problem of low-penetration and high-penetration, and the fan can be used as a reactive power source and can help the fault recovery of the power grid.
The stepped speed regulation of the speed-changing ring regulator for wind power generation opens up the technological route of synchronous wind power generator set without full-power frequency converter.
The application of the variable speed ring adjusting device for wind power generation in a squirrel cage asynchronous generator system is as follows:
the speed change ring adjusting device for wind power generation is matched with impeller small-range rotation speed fluctuation and self-balancing adjustment of slip ratio of the squirrel cage asynchronous generator, the grid-connected squirrel cage asynchronous generator is guaranteed to be in super-synchronous operation within the slip ratio range all the time, and constant-frequency power generation can be achieved without configuring a full-power frequency converter. The squirrel cage asynchronous machine type has the advantages of high reliability and low cost.
The utility model provides a rotational speed that wind power generation used speed change ring adjusting device can adjust the generator reduces the fluctuation range of generator speed, and then reduces the capacity of converter, reduces the cost of converter to can be suitable for current double-fed asynchronous generation, synchronous generation and squirrel cage asynchronous generation.
Claims (10)
1. the speed-changing ring adjusting device for wind power generation is characterized by comprising
The lifting device comprises a steel belt shaft, wherein a steel belt groove and lifting grooves are formed in the steel belt shaft, the steel belt groove is used for fixing one end of a steel belt, the lifting grooves are formed along the axis of the steel belt shaft, the number of the lifting grooves is not less than two, and the lifting grooves are arranged in an annular array along the axis of the steel belt shaft;
The lifting rod is slidably arranged in the lifting groove, and the length of the lifting rod is not less than the width of the steel belt;
the elastic piece is arranged between the lifting rod and the lifting groove;
The connecting columns are fixed at one end of the steel belt shaft, the number of the connecting columns is not less than two, and the connecting columns are arranged in an annular array around the axis of the steel belt shaft;
The connecting cylinder is provided with a steel belt shaft at one end and is fixed on the connecting cylinder, and the inner diameter of the connecting cylinder is larger than the outer diameter of the steel belt shaft;
The two or more speed adjusting rings are sleeved with each other, the speed adjusting rings can slide relatively, are slidably mounted between the steel belt shaft and the connecting cylinder and sequentially extend and retract along the axis of the steel belt shaft, and are used for adjusting the diameter of the steel belt shaft, and one end of each speed adjusting ring is provided with a spacing groove corresponding to the connecting column; and
And the driving device is arranged on the connecting cylinder and is used for sequentially driving the speed regulating rings to stretch and retract.
2. the variable speed ring adjustment device for wind power generation according to claim 1,
The steel belt shaft is a regular prism, and the steel belt groove and the lifting groove are respectively positioned on the outer side surface of the regular prism;
The cross section of the speed regulating ring is a regular polygon, the speed regulating ring is matched with the steel belt shaft, and the avoiding groove is positioned on the side surface of the speed regulating ring.
3. the variable speed ring adjustment device for wind power generation according to claim 1 or 2,
the steel belt shaft support structure is characterized by further comprising an end supporting ring, the end supporting ring is fixed to the other end of the steel belt shaft, a plurality of supporting columns are arranged on the end supporting ring, and the supporting columns correspond to the connecting columns.
4. The variable speed ring adjustment device for wind power generation according to claim 3,
Guide grooves are formed in the connecting column and the supporting column and communicated with the lifting groove, and two ends of the lifting rod are slidably mounted in the guide grooves.
5. The variable speed ring adjustment device for wind power generation according to claim 1,
The elastic piece is a cylindrical compression spring or a nitrogen spring.
6. The variable speed ring adjustment device for wind power generation according to claim 1,
The speed regulating ring is also provided with a driving groove, and one side of the driving groove is provided with a driving rack;
The driving device comprises
the driving gear is positioned on one side of the driving rack and meshed with the driving rack;
The gear connecting pipe is rotatably inserted into the shaft hole of the connecting cylinder, and one end of the gear connecting pipe is fixed on the driving gear;
the driving gear is positioned on the outer side of the connecting pipe and is fixed at the other end of the gear connecting pipe;
The driving ring is rotatably arranged on the outer side surface of the connecting cylinder and coaxial with the connecting cylinder, a plurality of arc-shaped racks are arranged on the driving ring, the arc-shaped racks are meshed with the driving gear, the driving ring is a first driving ring and a second driving ring respectively, and the first driving ring and the second driving ring are symmetrically positioned on two sides of the driving gear respectively; and
the follow-up rotation device is fixed on the outer side surface of the connecting cylinder and is used for controlling the rotation or stop of the driving ring;
the quantity of drive gear, gear connecting pipe, driving gear and arc rack all is unanimous with the quantity of speed governing ring, the diameter of gear connecting pipe increases in proper order, and length increases in proper order, the gear connecting pipe overlaps each other and is in the same place, and homoenergetic relative rotation, the axis range upon range of setting of gear connecting pipe is all followed to drive gear and driving gear, drive gear is corresponding with the drive rack on the speed governing ring respectively, the driving gear is corresponding with the arc rack respectively.
7. The variable speed ring adjustment device for wind power generation according to claim 6,
The following rotation device comprises
The rotating device is fixed on the outer circular surface of the connecting cylinder and is used for driving the driving ring to rotate along with the connecting cylinder; and
and the stopping device is positioned on one side of the outer circular surface of the driving ring and is used for controlling the driving ring to stop rotating.
8. The variable speed ring adjustment device for wind power generation according to claim 7,
The rotating device comprises
The rotating seat is fixed on the outer circular surface of the connecting cylinder and is provided with a pressing groove;
the pressing block is slidably arranged in the pressing groove; and
And the compression spring is positioned in the compression groove, two ends of the compression spring are respectively connected with the bottom of the compression groove and the compression block, and the compression spring compresses the compression block on the end surface of the driving ring.
9. The variable speed ring adjustment device for wind power generation according to claim 7,
The stopping device comprises
The top of the stop rotation seat is provided with two stop rotation grooves, one side of the stop rotation seat is provided with a sliding groove, the sliding groove is positioned at the bottom of the stop rotation seat, and the sliding groove is communicated with the stop rotation grooves;
The rotation stopping blocks are slidably arranged in the rotation stopping grooves, the bottom surfaces of the rotation stopping blocks, which are opposite to the bottoms of the sliding grooves, are lifting inclined surfaces, the rotation stopping blocks are provided with two rotation stopping blocks which are respectively a first rotation stopping block and a second rotation stopping block, and the lifting inclined surfaces of the first rotation stopping block and the lifting inclined surfaces of the second rotation stopping block are arranged in a positive and negative mode;
The driving block is slidably mounted in the sliding groove, a first stopping rotating table and a second stopping rotating table are arranged on the driving block, driving inclined planes are arranged at the tops of the first stopping rotating table and the second stopping rotating table respectively, the driving inclined planes of the first stopping rotating table and the driving inclined planes of the second stopping rotating table are arranged in a positive and negative mode, the first stopping rotating block and the second stopping rotating block are slidably mounted on the first stopping rotating table and the second stopping rotating table respectively, and the lifting inclined planes are in sliding fit with the driving inclined planes; and
The stalling hydraulic cylinder is fixed on the other side of the stalling seat, and a piston rod of the stalling hydraulic cylinder is connected with the driving block;
When the piston rod of the stalling hydraulic cylinder extends, the first stalling block is pressed on the first driving ring, the first driving ring stops rotating, the second stalling block is not contacted with the second driving ring, when the piston rod of the stalling hydraulic cylinder retracts, the second stalling block is pressed on the second driving ring, the second driving ring stops rotating, and the first stalling block is not contacted with the first driving ring.
10. The variable speed ring adjustment device for wind power generation according to claim 9,
The top surface of the rotation stopping block is an arc surface, the rotation stopping block faces the outer circular surface of the driving ring, and the arc surface is matched with the outer circular surface of the driving ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920488987.4U CN209767321U (en) | 2019-04-11 | 2019-04-11 | Speed-changing ring adjusting device for wind power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920488987.4U CN209767321U (en) | 2019-04-11 | 2019-04-11 | Speed-changing ring adjusting device for wind power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209767321U true CN209767321U (en) | 2019-12-10 |
Family
ID=68758817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920488987.4U Expired - Fee Related CN209767321U (en) | 2019-04-11 | 2019-04-11 | Speed-changing ring adjusting device for wind power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209767321U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109873531A (en) * | 2019-04-11 | 2019-06-11 | 尉立 | Speed change ring regulating device used for wind power generation |
-
2019
- 2019-04-11 CN CN201920488987.4U patent/CN209767321U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109873531A (en) * | 2019-04-11 | 2019-06-11 | 尉立 | Speed change ring regulating device used for wind power generation |
| CN109873531B (en) * | 2019-04-11 | 2024-04-05 | 泛在能源(山东)有限公司 | Speed-changing ring adjusting device for wind power generation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209767321U (en) | Speed-changing ring adjusting device for wind power generation | |
| CN114244039B (en) | Multistation motor stator lamination equipment | |
| CN104860123B (en) | It is a kind of can metering unwrapping wire strand oscillator | |
| CN109873531B (en) | Speed-changing ring adjusting device for wind power generation | |
| CN113059021B (en) | Be applied to microfilament take-up frame among photovoltaic power generation | |
| CN212531776U (en) | Cable winding device | |
| CN208135621U (en) | A kind of synchronization take-up for double plate fork winch | |
| CN213356563U (en) | Power wire conveying and winding device | |
| CN216638485U (en) | Antiwind coiling mechanism of wire and cable production | |
| CN215974397U (en) | Optical fiber winding machine with automatic discharging function for optical fiber cable production | |
| CN214326759U (en) | Wire arranging device for power transmission and distribution | |
| CN202272670U (en) | Rope guiding device and electric block using same | |
| CN221644200U (en) | Cable drum pinch roller device | |
| CN105499351A (en) | Roller-variable automatic edge rolling machine | |
| CN206305248U (en) | A kind of bender | |
| CN213415844U (en) | Winding machine for winding double-row wire | |
| CN220596673U (en) | Cable drum for stacking cables | |
| CN221093152U (en) | Hydraulic engineering construction buried pipe pay-off | |
| CN220641855U (en) | Flat winding belt winding device | |
| CN218159990U (en) | Tension device for foil winding machine | |
| CN216155190U (en) | Cable take-up and pull device assisting in electric power construction | |
| CN221190931U (en) | Stainless steel strip pre-rolling device | |
| CN210824863U (en) | Reel device for PE pipe coil | |
| CN214031213U (en) | Automatic circular rolling frame that suitability is high | |
| CN221125619U (en) | Full-automatic strander of high-strength high-conductivity copper alloy wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 Termination date: 20200411 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |