CN111608872A - Flexible wind wheel locking device for anti-typhoon wind generating set braking system - Google Patents
Flexible wind wheel locking device for anti-typhoon wind generating set braking system Download PDFInfo
- Publication number
- CN111608872A CN111608872A CN202010420185.7A CN202010420185A CN111608872A CN 111608872 A CN111608872 A CN 111608872A CN 202010420185 A CN202010420185 A CN 202010420185A CN 111608872 A CN111608872 A CN 111608872A
- Authority
- CN
- China
- Prior art keywords
- wind wheel
- wheel locking
- spring
- gear box
- locking pin
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/30—Retaining components in desired mutual position
- F05B2260/31—Locking rotor in position
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a flexible wind wheel locking device for a typhoon-resistant wind generating set braking system, which adopts a flexible wind wheel locking design scheme and comprises a swing trolley and two flexible wind wheel locking units; the two flexible wind wheel locking units are symmetrically distributed on the left side and the right side of a flange at the front end of the gear box and are connected with the left end and the right end of the swing trolley; the swing trolley and a shell of a wind wheel locking pin assembly of the braking system are fixedly integrated, and can move in an arc-shaped guide rail slot of a flange at the front end of the gear box to drive a steel wire rope group on the left side or the right side to be tightened up and drive a guide post in a flexible wind wheel locking unit on one side to be pulled out, so that a spring sleeved on the guide post is pressed, and restoring force is provided for the wind wheel. The invention allows the wind wheel to swing within a certain angle, and the larger the angle deviates from the positive Y position, the larger the restoring force is, so that the load of the wind wheel and the whole machine can be greatly reduced, and the difficulty of the overall design of the wind generating set is greatly reduced.
Description
Technical Field
The invention relates to the technical field of design of a braking system of a typhoon-resistant wind generating set, in particular to a flexible wind wheel locking device for the braking system of the typhoon-resistant wind generating set, which locks a wind wheel under a typhoon-resistant working condition, enables the wind wheel to swing only within a certain angle range along a transmission axis and provides proper torsional rigidity.
Background
In the prior art, a megawatt three-blade typhoon-resistant wind generating set is generally controlled by a variable pitch propeller to feather three blades, so that a wind wheel freely idles, and excessive load on the whole generator is avoided. For a three-blade typhoon-resistant wind generating set, three blades need to be feathered, and then a wind wheel needs to be locked at the position of the blade, so that the load borne by the wind generating set is minimum. When the wind wheel rotates, the wind load born by the wind wheel is changed at different angle positions, and when the wind wheel is in the positive Y direction, namely one of the blades is vertically downwards, the wind load born by the wind wheel is smaller. However, if the wind wheel is locked completely, the unbalanced load of the wind wheel cannot be released, so that the instantaneous limit load of the wind generating set is increased remarkably, especially for a downwind typhoon-resistant wind generating set, the whole load of the wind generating set is very large at the typhoon limit wind speed by completely releasing or completely locking the wind wheel in the prior art, and in addition, for the design of the downwind three-blade typhoon-resistant wind generating set, the wind wheel is adopted to rotate freely in an unloaded mode, so that the wind wheel load is increased greatly.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a flexible wind wheel locking device for a braking system of a typhoon-resistant wind generating set, aiming at the problem that the load of the whole wind generating set is larger because the conventional typhoon-resistant wind generating set is completely locked or completely released to the wind wheel.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: the flexible wind wheel locking device is used for a braking system of a typhoon-resistant wind generating set, the braking system of the wind generating set comprises a wind wheel locking disc, a gear box front end flange and a wind wheel locking pin assembly, the wind wheel locking disc is fixedly connected with a hub of a wind wheel through a bolt, the gear box front end flange is a part of the gear box of the wind generating set and is fixedly connected with a generator of the wind generating set and a cabin shell through bolts respectively, the wind wheel locking pin assembly comprises a wind wheel locking pin and a driving device used for driving the wind wheel locking pin to extend out or retract, and under the action of the driving device, the wind wheel locking pin can extend into a locking hole in the wind wheel locking disc so as to lock the wind wheel by locking the wind; the flexible wind wheel locking device comprises a swing trolley and two flexible wind wheel locking units; the upper half part of the front end flange of the gear box is provided with an arc-shaped guide rail slotted hole extending along the circumferential direction of the gear box, and the left part and the right part of the arc-shaped guide rail slotted hole are in mirror symmetry relative to the vertical center line of the front end flange of the gear box; the swing trolley is arranged in the arc-shaped guide rail groove hole and can only move in the arc-shaped guide rail groove hole, two wind wheel locking pin assemblies are arranged in the arc-shaped guide rail groove hole and are positioned at the left side and the right side of the swing trolley, and shells of the two wind wheel locking pin assemblies are respectively connected with the left end and the right end of the swing trolley and are fixedly integrated, so that after the wind wheel locking pin extends out of the locked wind wheel, the rotation of the wind wheel can drive the two wind wheel locking pin assemblies to move along with the swing trolley in an angle range limited by the arc-shaped guide rail groove hole; the two flexible wind wheel locking units are symmetrically distributed on the left side and the right side of a flange at the front end of the gear box and correspond to the two wind wheel locking pin assemblies, namely, one wind wheel locking pin assembly is matched with one flexible wind wheel locking unit; the flexible wind wheel locking unit comprises a steel wire rope set, a fixed pulley, a movable pulley, a guide post, a supporting seat, a first spring, a partition plate, a second spring, a spring end plate and a guide post end plate, wherein the supporting seat is fixed on the lower half part of a front end flange of the gear box, the fixed pulley is fixed on the front end flange of the gear box and is positioned between an arc-shaped guide rail slotted hole and the supporting seat, the movable pulley is arranged between the fixed pulley and the supporting seat and is installed at the top part of the guide post, the bottom part of the guide post vertically and downwards sequentially penetrates through the supporting seat, the partition plate and the spring end plate and then is fixedly connected with the guide post end plate, the guide post is prevented from being separated from the spring end plate by the guide post end plate, the first spring is arranged between the supporting seat and the partition plate and is sleeved on the guide post, two ends of the, and the suit is on the guide post, and its both ends are connected with baffle and spring end plate respectively, baffle and spring end plate can slide on the guide post, the one end of wire rope group and the shell fixed connection of corresponding wind wheel stop pin subassembly, its other end upwards connect on gear box front end flange after winding fixed pulley and movable pulley downwards in proper order to be close to the fixed pulley, utilize the gravity of guide post and guide post end plate to make wire rope group taut.
Further, the space distance between the supporting seat and the movable pulley is larger than the total stroke of the first spring and the second spring, so that when the movable pulley moves downwards, the steel wire rope group is always tensioned.
Furthermore, springs which are not sleeved on the guide columns are connected between the supporting seat and the partition plate and between the partition plate and the spring end plate, so that the restoring force is increased.
Furthermore, the swing trolley adopts a double-layer double-row conical rolling wheel, and can bear additional bending moment generated on the wind wheel locking pin assembly.
Furthermore, buffer parts are arranged at the extreme positions of the two ends of the arc-shaped guide rail slotted hole so as to reduce the impact force generated when the wind wheel locking assembly swings to the extreme positions; and, the two rotor locking pin assemblies are spaced 60 apart.
The other technical scheme provided by the invention is as follows: the flexible wind wheel locking device is used for a braking system of a typhoon-resistant wind generating set, the braking system of the wind generating set comprises a wind wheel locking disc, a gear box front end flange and a wind wheel locking pin assembly, the wind wheel locking disc is fixedly connected with a hub of a wind wheel through a bolt, the gear box front end flange is a part of the gear box of the wind generating set and is fixedly connected with a generator of the wind generating set and a cabin shell through bolts respectively, the wind wheel locking pin assembly comprises a wind wheel locking pin and a driving device used for driving the wind wheel locking pin to extend out or retract, and under the action of the driving device, the wind wheel locking pin can extend into a locking hole in the wind wheel locking disc so as to lock the wind wheel by locking the wind; the flexible wind wheel locking device comprises a swing trolley and two flexible wind wheel locking units; the upper half part of the front end flange of the gear box is provided with an arc-shaped guide rail slotted hole extending along the circumferential direction of the gear box, and the left part and the right part of the arc-shaped guide rail slotted hole are in mirror symmetry relative to the vertical center line of the front end flange of the gear box; the wind wheel locking pin assembly is arranged in the arc-shaped guide rail groove hole and can only move in the arc-shaped guide rail groove hole, one wind wheel locking pin assembly is arranged in the arc-shaped guide rail groove hole and is positioned at one side of the swing trolley, and a shell of the wind wheel locking pin assembly is connected with one end of the swing trolley and is fixed into a whole, so that after the wind wheel locking pin extends out of the locked wind wheel, the rotation of the wind wheel can drive the wind wheel locking pin assembly to move along with the swing trolley in an angle range limited by the arc-shaped guide rail groove hole; the two flexible wind wheel locking units are symmetrically distributed on the left side and the right side of a flange at the front end of the gear box; the flexible wind wheel locking unit comprises a steel wire rope set, a fixed pulley, a movable pulley, a guide post, a supporting seat, a first spring, a partition plate, a second spring, a spring end plate and a guide post end plate, wherein the supporting seat is fixed on the lower half part of a front end flange of the gear box, the fixed pulley is fixed on the front end flange of the gear box and is positioned between an arc-shaped guide rail slotted hole and the supporting seat, the movable pulley is arranged between the fixed pulley and the supporting seat and is installed at the top part of the guide post, the bottom part of the guide post vertically and downwards sequentially penetrates through the supporting seat, the partition plate and the spring end plate and then is fixedly connected with the guide post end plate, the guide post is prevented from being separated from the spring end plate by the guide post end plate, the first spring is arranged between the supporting seat and the partition plate and is sleeved on the guide post, two ends of the, the guide post is sleeved with the baffle plate, the two ends of the guide post are respectively connected with the baffle plate and the spring end plate, and the baffle plate and the spring end plate can slide on the guide post; one end of a steel wire rope group of one flexible wind wheel locking unit is fixedly connected with a shell of a wind wheel locking pin assembly, the other end of the steel wire rope group is downwards sequentially wound around a fixed pulley and a movable pulley and then upwards connected to a flange at the front end of a gear box and close to the fixed pulley, and the steel wire rope group is tensioned by utilizing the gravity of a guide post and a guide post end plate; one end of a steel wire rope group of the other flexible wind wheel locking unit is connected with the other end of the swing trolley, and the other end of the steel wire rope group is downwards sequentially wound around the fixed pulley and the movable pulley and then upwards connected to a flange at the front end of the gear box and close to the fixed pulley.
Further, the space distance between the supporting seat and the movable pulley is larger than the total stroke of the first spring and the second spring, so that when the movable pulley moves downwards, the steel wire rope group is always tensioned.
Furthermore, springs which are not sleeved on the guide columns are connected between the supporting seat and the partition plate and between the partition plate and the spring end plate, so that the restoring force is increased.
Furthermore, the swing trolley adopts a double-layer double-row conical rolling wheel, and can bear additional bending moment generated on the wind wheel locking pin assembly.
Furthermore, the extreme positions at both ends of the arc-shaped guide rail slotted hole are provided with buffering parts so as to reduce the impact force generated when the wind wheel locking assembly swings to the extreme positions.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention adopts a flexible wind wheel locking design scheme, allows the wind wheel to swing within a certain angle such as +/-30 degrees, provides restoring force for the wind wheel, the larger the angle deviation from the positive Y position is, the larger the restoring force is, before the typhoon arrives under the typhoon resisting working condition, the wind wheel is locked at the positive Y position with the minimum stress on the blades, allows the wind wheel to swing within a certain angle such as +/-27 degrees after the typhoon arrives, and after the wind wheel is blown away from the positive Y position by the typhoon, when the wind power is reduced, the wind wheel can return to the positive Y position, namely the position with the minimum load, thereby obviously reducing the complete machine load under the typhoon working condition.
2. The flexible wind wheel locking device of the invention is related to the safe operation of the wind generating set and needs high reliability; therefore, the invention adopts a mechanical structure combined by the spring and the steel wire rope group to realize the locking function of the flexible wind wheel, avoids using complex electric and hydraulic devices, namely no complex electric and hydraulic structure, and has very high reliability.
3. The springs can be designed according to the requirements of wind wheel locking limit moment and restoring force, and different locking rigidities can be designed, so that the load design requirements of the whole machine are met.
4. The invention provides an effective solution for reducing the overall design load of the downwind three-blade typhoon-resistant fan set by reducing the locking rigidity of the wind wheel.
5. The invention directly locks on the hub side of the wind wheel and does not pass through the gear box of the wind generating set, so the gear box is not damaged, and the reliability of the wind generating set is improved.
Drawings
Fig. 1 is a schematic view of the installation of the flexible wind wheel locking device in embodiment 1.
Fig. 2 is a front view of the flexible wind wheel locking device in embodiment 1.
Fig. 3 is an axial view of the flexible wind wheel locking device in embodiment 1.
FIG. 4 is a cross-sectional view of the swing car of embodiment 1 after being installed in the slot of the arc-shaped guide rail.
Fig. 5 is a front view of the flexible wind wheel locking device in embodiment 2.
Detailed Description
The present invention will be further described with reference to the following specific examples.
Example 1
The flexible wind wheel locking device provided by the embodiment is mainly used for a braking system of a typhoon-resistant wind turbine generator system, as shown in fig. 1, the braking system comprises a wind wheel locking disc 6, a gear box front end flange 3 and a wind wheel locking pin assembly 2, the wind wheel locking disc 6 is fixedly connected with a hub 8 of a wind wheel (not shown in the figure) through a bolt, the gear box front end flange 3 is a part of the gear box of the wind turbine generator system and is fixedly connected with a generator (not shown in the figure) of the wind turbine generator system and a cabin shell 7 through a bolt respectively, the wind wheel locking pin assembly 2 comprises a wind wheel locking pin 201 and a driving device (not shown in the figure) for driving the wind wheel locking pin 201 to extend out or retract, when the wind wheel needs to be locked, a locking hole on the wind wheel locking disc 6 is aligned with the wind wheel locking pin 201, then the wind wheel locking pin 201 extends into the locking hole, thereby locking the wind wheel by locking the wind wheel locking disc 6, so that the flexible wind wheel locking device acts.
Referring to fig. 1 to 3, the flexible wind wheel locking device according to the present embodiment includes a swing trolley 1 and two flexible wind wheel locking units 5; the upper half part of the front end flange 3 of the gear box is provided with an arc-shaped guide rail slotted hole 4 extending along the circumferential direction of the gear box, and the left part and the right part of the arc-shaped guide rail slotted hole 4 are in mirror symmetry relative to the vertical center line of the front end flange 3 of the gear box; the swing trolley 1 is arranged in the arc-shaped guide rail slot hole 4 and can only move in the arc-shaped guide rail slot hole 4, the wind wheel locking pin assemblies 2 are provided with two parts which are arranged in the arc-shaped guide rail slot hole 4 and are positioned at the left side and the right side of the swing trolley 1, the shells of the two wind wheel locking pin assemblies 2 are respectively connected with the left end and the right end of the swing trolley 1 and are fixedly integrated, so that after the wind wheel locking pin 201 extends out of the locked wind wheel, the rotation of the wind wheel can drive the two wind wheel locking pin assemblies 2 to move along with the swing trolley 1 in the angle range limited by the arc-shaped guide rail slot hole 4, and the limit positions at the two ends of the arc-shaped guide rail slot hole 4 are both provided with buffer parts (according to the shape of the arc-shaped guide rail slot hole 4, a rubber base plate or a rubber spring is customized and is used for buffering, the impact force generated when the wind wheel locking assembly 2 swings to the extreme position is reduced; the two flexible wind wheel locking units 5 are symmetrically distributed on the left side and the right side of a flange at the front end of the gear box and correspond to the two wind wheel locking pin assemblies 2, namely, one wind wheel locking pin assembly 2 is matched with one flexible wind wheel locking unit 5; the flexible wind wheel locking unit 5 comprises a steel wire rope set 501, a fixed pulley 502, a movable pulley 503, a guide post 504, a supporting seat 505, a first spring 506, a partition 507, a second spring 508, a spring end plate 509 and a guide post end plate 510, wherein the supporting seat 505 is fixed on the lower half part of the front end flange 3 of the gear box, the fixed pulley 502 is fixed on the front end flange 3 of the gear box and is positioned between the arc-shaped guide rail slot hole 4 and the supporting seat 505, the movable pulley 503 is arranged between the fixed pulley 502 and the supporting seat 505 and is installed on the top of the guide post 504, the bottom of the guide post 504 vertically and downwards sequentially penetrates through the supporting seat 505, the partition 507 and the spring end plate 509 and then is fixedly connected with the guide post end plate 510, the guide post 504 is prevented from being separated from the spring end plate 509 by the guide post end plate 510, the first spring 506 is arranged between the supporting seat 505, the two ends of the second spring 508 are respectively connected with the supporting seat 505 and the partition 507, the second spring 508 is arranged between the partition 507 and the spring end plate 509 and is sleeved on the guide column 504, the two ends of the second spring are respectively connected with the partition 507 and the spring end plate 509, and springs 511 which are not sleeved on the guide column 504 are further connected between the supporting seat 505 and the partition 507 and between the partition 507 and the spring end plate 509 and are used for increasing restoring force; the partition 507 and the spring end plate 509 can slide on the guide column 504, one end of the wire rope set 501 is fixedly connected with the shell of the corresponding wind wheel locking pin assembly 2, and the other end thereof is connected on the front end flange 3 of the gear box and close to the fixed pulley 502 after sequentially winding the fixed pulley 502 and the movable pulley 503 downwards and upwards. The wire rope set 501 is tightened by the gravity of the guide post 504 and the guide post end plate 510, and the space distance between the support base 507 and the movable pulley 503 is larger than the total stroke of the first spring 506 and the second spring 508, so that the wire rope set 501 is always tightened when the movable pulley 503 moves downward.
Since the support of all components of the flexible wind wheel locking device is arranged on the front end flange 3 of the gearbox, the structure and size of the flange need to be designed according to installation and bearing requirements. In addition, the angle range of the arc-shaped guide rail slot hole 4 is determined according to the design requirements, the requirement of the wind wheel on +/-30-degree locking swing stroke is generally met, and the surface of the arc-shaped guide rail needs to be subjected to surface hardening treatment.
The two wind wheel locking pin assemblies 2 need to be separated by 60 degrees, and the requirements of different locking states of one blade in the horizontal or vertical direction are met. In addition, the wind wheel locking pin is designed according to the limit locking moment, and the driving device of the wind wheel locking pin can be manually or electrically operated. Because the wind wheel locking pin assembly 2 needs to swing along with the swing trolley 1, the electric device needs to be additionally provided with a rotary retracting or swinging retracting device of a cable. A limiting device can be added on the wind wheel locking pin assembly 2, and under the maintenance working condition, the wind wheel is locked by the limiting device, so that the wind wheel is completely locked. The limiting device of the wind wheel locking assembly 2 can adopt a bolt type or a locking hole is formed at the tail part of the assembly, and then a locking pin device fixed on a flange 3 at the front end of the gear box is connected in series for locking.
Referring to fig. 4, the support shaft 101 and the support 102 of the swing trolley 1 are designed according to strength, the support 102 may adopt a frame-type split structure, the two split parts are connected and pre-tightened by bolt connection, the conical rolling wheel 103 is supported by a ball bearing or a roller bearing, i.e. a double-layer double-row conical rolling is adopted, the swing trolley 1 may further increase the radial rolling wheel to bear radial force, and the conical rolling wheel 103 may also be designed as a cylindrical or spherical roller to bear bending moment, radial force and axial force in cooperation with the shape of the guide rail. In addition, the swing trolley 1 needs to bear the additional bending moment generated by the wind wheel locking pin component 2, so the preferable scheme is to adopt a double-layer double-row conical rolling wheel to bear the additional bending moment and radial and axial forces.
The number of the steel wire ropes in the steel wire rope group is determined according to the design requirement: the design of the steel wire rope needs to take more than 5 times of safety factor, and the steel wire rope with small diameter or large diameter can be used and determined by combining the requirement of installation space. The steel wire rope needs to consider the corrosion prevention requirement of the offshore environment, and the steel wire rope made of stainless steel materials is preferably selected. The design of the pulley meets the requirements of supporting and transferring load of the steel wire rope, and the diameter of the pulley meets the design specification of the hoisting industry. In principle, any type of spring that meets both the load-bearing and stroke requirements can be used to form the spring. Because the bearing capacity of the extension spring is limited and the connection reliability is low, a compression spring is required to be used as a spring. Preferably, the compression springs are cylindrical and spiral compression springs with circular cross sections, and the number of the springs is determined according to the requirement of bearing capacity. Cylindrical coil springs with rectangular and other non-circular cross sections can be selected, and combined springs can be used for improving the bearing capacity. The special-shaped spring or the combined spring of the springs with different specifications and types can be selected according to the requirement of the stiffness curve.
Because the swing arc length of the wind wheel locking pin assembly 2 is very large, a compression spring meeting the requirement of such a large stroke is very long, the installation space occupies a very large space, and the problem of compression stability exists. For this reason, it is necessary to reduce the stroke by half by using a movable pulley 503 in the flexible wind wheel locking unit 5, and simultaneously, two compression springs are connected in series to meet the stroke requirement.
When the wind wheel drives the swing trolley 1 to swing leftwards, in the flexible wind wheel locking unit 5 on the left side, the steel wire rope set 501 is tensioned by utilizing the gravity of the guide column 504 and the guide column end plate 510, a space distance which is larger than the stroke of the first spring 506 and the second spring 508 is reserved between the supporting seat 505 and the movable pulley 503, so that when the movable pulley 503 moves downwards, the steel wire rope set 501 is always tensioned, the guide column 504 drives the guide column end plate 510 to be separated from the spring end plate 509, and no acting force is generated. Meanwhile, the wire rope set 501 of the right flexible wind wheel locking unit 5 is pulled upwards, and the right guide post 504 is pulled out, so that the first spring 506, the second spring 508 and the spring 511 of the right flexible wind wheel locking unit 5 are compressed, and restoring force is generated.
In summary, the principle of the flexible wind wheel locking device is as follows: after the wind wheel locking pin 201 extends out to lock the wind wheel, the shell of the wind wheel locking pin assembly 2 is fixedly connected with the swing trolley 1, and the rotation of the wind wheel drives the wind wheel locking pin assembly 2 and the swing trolley 1 to rotate together. The swing trolley 1 can only move in the arc-shaped guide rail slot hole 4 on the flange 3 at the front end of the gear box, so that the wind wheel is limited to swing only in the angle range limited by the arc-shaped guide rail slot hole 4.
When the wind wheel drives the swing trolley 1 to swing leftwards, the steel wire rope set 501 of the left flexible wind wheel locking unit 5 is anti-loose, under the self-weight action of the left guide column 504, the steel wire rope set 501 is tightened, the steel wire rope set 501 of the right flexible wind wheel locking unit 5 is tightened, the right guide column 504 is pulled out, and therefore the right first spring 506, the right second spring 508 and the right spring 511 are pressed to generate restoring force. The larger the swing angle, the larger the restoring force generated by the spring. When the wind speed is reduced, the wind wheel rotation moment is reduced, and the restoring force generated by the first spring 506, the second spring 508 and the spring 511 pulls the wind wheel back to the vertical position. When the wind wheel drives the swing trolley 1 to swing rightwards, the action process is opposite, and the restoring force generated by the first spring 506, the second spring 508 and the spring 511 can still enable the wind wheel to return to the vertical position.
Example 2
Referring to fig. 5, the difference from embodiment 1 is that only one wind wheel locking pin assembly 2 is used in this embodiment, the outer shell of the wind wheel locking pin assembly 2 is connected with one end of the swing trolley 1, and is fixed as a whole, similarly, two flexible wind wheel locking units 5 are symmetrically distributed on the left and right sides of the front end flange 3 of the gear box, wherein the steel wire rope group 501 of one flexible wind wheel locking unit 5 is connected with the outer shell of the wind wheel locking pin assembly 2, and the steel wire rope group 501 of the other flexible wind wheel locking unit 5 is connected with the other end of the swing trolley 1.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that variations based on the shape and principle of the present invention should be covered within the scope of the present invention.
Claims (10)
1. A flexible wind wheel locking device for a braking system of a typhoon-resistant wind generating set comprises a wind wheel locking disc (6), a gear box front end flange (3) and a wind wheel locking pin assembly (2), the wind wheel locking disc (6) is fixedly connected with a hub (8) of the wind wheel through a bolt, the flange (3) at the front end of the gear box is a part of the gear box of the wind generating set, which is respectively connected and fixed with a generator of the wind generating set and a cabin shell (7) through bolts, the wind wheel locking pin assembly (2) comprises a wind wheel locking pin (201) and a driving device for driving the wind wheel locking pin (201) to extend or retract, under the action of the driving device, the wind wheel locking pin (201) can extend into a locking hole on the wind wheel locking disc (6), so that the wind wheel is locked by locking the wind wheel locking disc (6); the method is characterized in that: the flexible wind wheel locking device comprises a swing trolley (1) and two flexible wind wheel locking units (5); the upper half part of the front end flange (3) of the gear box is provided with an arc-shaped guide rail slotted hole (4) extending along the circumferential direction of the gear box, and the left part and the right part of the arc-shaped guide rail slotted hole (4) are in mirror symmetry relative to the vertical center line of the front end flange (3) of the gear box; the swing trolley (1) is arranged in the arc-shaped guide rail groove hole (4) and can only move in the arc-shaped guide rail groove hole (4), two wind wheel locking pin assemblies (2) are arranged in the arc-shaped guide rail groove hole (4) and are positioned on the left side and the right side of the swing trolley (1), and shells of the two wind wheel locking pin assemblies (2) are respectively connected with the left end and the right end of the swing trolley (1) and are fixed into a whole, so that after the wind wheel locking pin (201) extends out of the locked wind wheel, the rotation of the wind wheel can drive the two wind wheel locking pin assemblies (2) to move in an angle range limited by the arc-shaped guide rail groove hole (4) along with the swing trolley (1); the two flexible wind wheel locking units (5) are symmetrically distributed on the left side and the right side of a flange at the front end of the gear box and correspond to the two wind wheel locking pin assemblies (2), namely, one wind wheel locking pin assembly (2) is matched with one flexible wind wheel locking unit (5); the flexible wind wheel locking unit (5) comprises a steel wire rope group (501), a fixed pulley (502), a movable pulley (503), a guide post (504), a supporting seat (505), a first spring (506), a partition plate (507), a second spring (508), a spring end plate (509) and a guide post end plate (510), wherein the supporting seat (505) is fixed on the lower half part of a gear box front end flange (3), the fixed pulley (502) is fixed on the gear box front end flange (3) and is positioned between an arc-shaped guide rail slotted hole (4) and the supporting seat (505), the movable pulley (503) is arranged between the fixed pulley (502) and the supporting seat (505) and is installed on the top of the guide post (504), the bottom of the guide post (504) vertically and downwards sequentially penetrates through the supporting seat (505), the partition plate (507) and the spring end plate (509) and then is fixedly connected with the guide post end plate (510), and the guide post (504) is prevented from being separated from the spring end plate (509) through the guide, the first spring (506) is arranged between the supporting seat (505) and the clapboard (507) and is sleeved on the guide post (504), the two ends of the spring are respectively connected with the supporting seat (505) and the clapboard (507), the second spring (508) is arranged between the clapboard (507) and the spring end plate (509) and is sleeved on the guide post (504), the two ends of the baffle plate are respectively connected with a baffle plate (507) and a spring end plate (509), the baffle plate (507) and the spring end plate (509) can slide on the guide post (504), one end of the steel wire rope group (501) is fixedly connected with the shell of the corresponding wind wheel locking pin component (2), the other end of the gear box is connected to a front end flange (3) of the gear box after sequentially winding a fixed pulley (502) and a movable pulley (503) downwards and upwards, and close to the fixed pulley (502), the wire rope group (501) is tensioned by the gravity of the guide column (504) and the guide column end plate (510).
2. The flexible wind wheel locking device for a typhoon-resistant wind power plant braking system according to claim 1, characterized in that: the space distance between the supporting seat (507) and the movable pulley (503) is larger than the total stroke of the first spring (506) and the second spring (508), so that when the movable pulley (503) moves downwards, the wire rope group (501) is tensioned all the time.
3. The flexible wind wheel locking device for a typhoon-resistant wind power plant braking system according to claim 1, characterized in that: springs (511) which are not sleeved on the guide columns (504) are connected between the supporting seat (505) and the partition plate (507) and between the partition plate (507) and the spring end plate (509) so as to increase restoring force.
4. The flexible wind wheel locking device for a typhoon-resistant wind power plant braking system according to claim 1, characterized in that: the swing trolley (1) adopts a double-layer double-row conical rolling wheel, and can bear additional bending moment generated on the wind wheel locking pin assembly.
5. The flexible wind wheel locking device for a typhoon-resistant wind power plant braking system according to claim 1, characterized in that: buffering parts are mounted at the extreme positions of the two ends of the arc-shaped guide rail slotted hole (4) so as to reduce the impact force generated when the wind wheel locking assembly (2) swings to the extreme positions; and, the two rotor locking pin assemblies (2) are spaced apart by 60 °.
6. A flexible wind wheel locking device for a braking system of a typhoon-resistant wind generating set comprises a wind wheel locking disc (6), a gear box front end flange (3) and a wind wheel locking pin assembly (2), the wind wheel locking disc (6) is fixedly connected with a hub (8) of the wind wheel through a bolt, the flange (3) at the front end of the gear box is a part of the gear box of the wind generating set, which is respectively connected and fixed with a generator of the wind generating set and a cabin shell (7) through bolts, the wind wheel locking pin assembly (2) comprises a wind wheel locking pin (201) and a driving device for driving the wind wheel locking pin (201) to extend or retract, under the action of the driving device, the wind wheel locking pin (201) can extend into a locking hole on the wind wheel locking disc (6), so that the wind wheel is locked by locking the wind wheel locking disc (6); the method is characterized in that: the flexible wind wheel locking device comprises a swing trolley (1) and two flexible wind wheel locking units (5); the upper half part of the front end flange (3) of the gear box is provided with an arc-shaped guide rail slotted hole (4) extending along the circumferential direction of the gear box, and the left part and the right part of the arc-shaped guide rail slotted hole (4) are in mirror symmetry relative to the vertical center line of the front end flange (3) of the gear box; the swing trolley (1) is arranged in the arc-shaped guide rail groove hole (4) and can only move in the arc-shaped guide rail groove hole (4), one wind wheel locking pin component (2) is arranged in the arc-shaped guide rail groove hole (4) and is positioned on one side of the swing trolley (1), and a shell of the wind wheel locking pin component (2) is connected with one end of the swing trolley (1) and is fixedly integrated, so that after the wind wheel locking pin (201) extends out of the locked wind wheel, the rotation of the wind wheel can drive the wind wheel locking pin component (2) to move in an angle range limited by the arc-shaped guide rail groove hole (4) along with the swing trolley (1); the two flexible wind wheel locking units (5) are symmetrically distributed on the left side and the right side of a flange at the front end of the gear box; the flexible wind wheel locking unit (5) comprises a steel wire rope group (501), a fixed pulley (502), a movable pulley (503), a guide post (504), a supporting seat (505), a first spring (506), a partition plate (507), a second spring (508), a spring end plate (509) and a guide post end plate (510), wherein the supporting seat (505) is fixed on the lower half part of a gear box front end flange (3), the fixed pulley (502) is fixed on the gear box front end flange (3) and is positioned between an arc-shaped guide rail slotted hole (4) and the supporting seat (505), the movable pulley (503) is arranged between the fixed pulley (502) and the supporting seat (505) and is installed on the top of the guide post (504), the bottom of the guide post (504) vertically and downwards sequentially penetrates through the supporting seat (505), the partition plate (507) and the spring end plate (509) and then is fixedly connected with the guide post end plate (510), and the guide post (504) is prevented from being separated from the spring end plate (509) through the guide, the first spring (506) is arranged between the supporting seat (505) and the partition plate (507) and sleeved on the guide column (504), two ends of the first spring are respectively connected with the supporting seat (505) and the partition plate (507), the second spring (508) is arranged between the partition plate (507) and the spring end plate (509) and sleeved on the guide column (504), two ends of the second spring are respectively connected with the partition plate (507) and the spring end plate (509), and the partition plate (507) and the spring end plate (509) can slide on the guide column (504); one end of a steel wire rope group (501) of one flexible wind wheel locking unit (5) is fixedly connected with a shell of a wind wheel locking pin assembly (2), the other end of the steel wire rope group is downwards sequentially wound around a fixed pulley (502) and a movable pulley (503) and then upwards connected to a front end flange (3) of the gear box and close to the fixed pulley (502), and the steel wire rope group (501) is tensioned by utilizing the gravity of a guide column (504) and a guide column end plate (510); one end of a steel wire rope group (501) of the other flexible wind wheel locking unit (5) is connected with the other end of the swing trolley (1), and the other end of the steel wire rope group (501) is connected to a front end flange (3) of the gear box and close to the fixed pulley (502) after sequentially winding the fixed pulley (502) and the movable pulley (503) downwards and upwards.
7. The flexible wind wheel locking device for a typhoon-resistant wind turbine generator system braking system according to claim 6, characterized in that: the space distance between the supporting seat (507) and the movable pulley (503) is larger than the total stroke of the first spring (506) and the second spring (508), so that when the movable pulley (503) moves downwards, the wire rope group (501) is tensioned all the time.
8. The flexible wind wheel locking device for a typhoon-resistant wind turbine generator system braking system according to claim 6, characterized in that: springs (511) which are not sleeved on the guide columns (504) are connected between the supporting seat (505) and the partition plate (507) and between the partition plate (507) and the spring end plate (509) so as to increase restoring force.
9. The flexible wind wheel locking device for a typhoon-resistant wind turbine generator system braking system according to claim 6, characterized in that: the swing trolley (1) adopts a double-layer double-row conical rolling wheel, and can bear additional bending moment generated on the wind wheel locking pin assembly.
10. The flexible wind wheel locking device for a typhoon-resistant wind turbine generator system braking system according to claim 6, characterized in that: buffering parts are installed at the extreme positions of the two ends of the arc-shaped guide rail groove hole (4) so as to reduce the impact force generated when the wind wheel locking assembly (2) swings to the extreme positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010420185.7A CN111608872A (en) | 2020-05-18 | 2020-05-18 | Flexible wind wheel locking device for anti-typhoon wind generating set braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010420185.7A CN111608872A (en) | 2020-05-18 | 2020-05-18 | Flexible wind wheel locking device for anti-typhoon wind generating set braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111608872A true CN111608872A (en) | 2020-09-01 |
Family
ID=72198527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010420185.7A Pending CN111608872A (en) | 2020-05-18 | 2020-05-18 | Flexible wind wheel locking device for anti-typhoon wind generating set braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111608872A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796937A (en) * | 2020-12-29 | 2021-05-14 | 诸暨和创电机科技有限公司 | Wind power size induction adjusting device based on elastic sheet and wind driven generator braking system |
| CN117569980A (en) * | 2023-12-04 | 2024-02-20 | 九力绳缆有限公司 | Composite cable for high-altitude wind power |
-
2020
- 2020-05-18 CN CN202010420185.7A patent/CN111608872A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796937A (en) * | 2020-12-29 | 2021-05-14 | 诸暨和创电机科技有限公司 | Wind power size induction adjusting device based on elastic sheet and wind driven generator braking system |
| CN112796937B (en) * | 2020-12-29 | 2022-01-11 | 镇赉华兴风力发电有限公司 | Wind power size induction adjusting device based on elastic sheet and wind driven generator braking system |
| CN117569980A (en) * | 2023-12-04 | 2024-02-20 | 九力绳缆有限公司 | Composite cable for high-altitude wind power |
| CN117569980B (en) * | 2023-12-04 | 2024-05-03 | 九力绳缆有限公司 | Composite cable for high-altitude wind power |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5918503B2 (en) | Floating fluid power utilization system and wind power propulsion ship using the same | |
| US4435646A (en) | Wind turbine rotor control system | |
| US5057696A (en) | Vertical windmill with omnidirectional diffusion | |
| CN104763587B (en) | A kind of novel wind motor linkage pitch-controlled system | |
| US7802968B2 (en) | Methods and apparatus for reducing load in a rotor blade | |
| US4557666A (en) | Wind turbine rotor | |
| US4311434A (en) | Wind turbine | |
| JP5224553B2 (en) | Turbine rotor and power plant | |
| US8164213B2 (en) | Orbital track wind turbine | |
| CN111608872A (en) | Flexible wind wheel locking device for anti-typhoon wind generating set braking system | |
| US20100303623A1 (en) | Wind power device | |
| CN102187093A (en) | Cable-stayed rotor for wind and water turbines | |
| CN102182638B (en) | Wind-pressure paddle change wind driven generator | |
| CN108678908B (en) | Yaw tower barrel section, tower barrel and wind generating set | |
| CN1035547A (en) | Control hub for adjusting pitch of wind turbo-propeller | |
| JP6266685B2 (en) | Floating fluid power utilization system and wind power propulsion ship using the same | |
| CN212717008U (en) | Flexible wind wheel locking device of anti-typhoon wind generating set braking system | |
| CN114412720A (en) | Transmission chain of wind generating set | |
| CN111608871A (en) | Flexible wind wheel locking device of anti-typhoon wind generating set braking system | |
| CN212717006U (en) | Flexible wind wheel locking device for anti-typhoon wind generating set braking system | |
| CN2846788Y (en) | Series vertical shaft wind motor set | |
| CN212717007U (en) | Flexible wind wheel locking structure of anti-typhoon wind generating set braking system | |
| CN101936260A (en) | Pitch and revolving angle-changing wind power generator | |
| CN111608873A (en) | Flexible wind wheel locking structure of anti-typhoon wind generating set braking system | |
| CN104314751A (en) | Vertical axis wind turbine and wind energy ship with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |