CN219513768U - Push rod type assembly structure of lightning protection device at tip of blade of wind driven generator - Google Patents
Push rod type assembly structure of lightning protection device at tip of blade of wind driven generator Download PDFInfo
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- CN219513768U CN219513768U CN202222913149.1U CN202222913149U CN219513768U CN 219513768 U CN219513768 U CN 219513768U CN 202222913149 U CN202222913149 U CN 202222913149U CN 219513768 U CN219513768 U CN 219513768U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model relates to a push rod type assembly structure of a lightning protection device at the tip of a blade of a wind driven generator, wherein an installation body is arranged at the lower end of a medium body, swing bodies capable of swinging are arranged at two sides of the installation body, a driving part is arranged in the installation body, and the driving part can enable the two swing bodies to swing towards the outer sides of the installation body respectively. In the utility model, pushing forces generated during rotation of the two protruding parts or elastic force of the springs are utilized to push the push rods at two sides to move in the guide grooves and drive the swinging body to swing towards the outer side of the installation body, after the installation body is completely inserted into the tip of the blade, the swinging body is clamped on the inner wall of the blade, and then the installation body and the blade are tightly fixed together by pouring glue, so that the blade and the lightning protection device are integrated into a whole, the aerodynamic requirements are more met on the whole, the installation is convenient at the tip of the installed blade, and the damage of heavy current generated by direct lightning to the blade and other electrical equipment can be effectively avoided.
Description
Technical Field
The utility model belongs to the technical field of lightning protection of wind driven generator blades, and particularly relates to a push rod type assembly structure of a lightning protection device at the tip of a wind driven generator blade.
Background
The blade of the wind driven generator has a complex geometric structure, the length of the blade exceeds 60m, the blade is made of a reinforced fiber composite material with poor electric conduction, the blade is installed on a high tower with the height of more than 100m and is in a vertical rotation state, so that the blade is extremely easy to be exposed to direct lightning when rotating to a high position, the blade is seriously damaged by direct lightning Lei Shi, and the damaged blade is not easy to repair, wherein a unit arranged on the offshore or in a remote area is extremely difficult to transport materials, and the cost of maintenance personnel is extremely high, so that the loss of income of the wind power plant caused by stopping operation is extremely great, and the lightning damage of the blade is most attractive.
In order to solve the lightning protection problem of the blade, chinese patent CN201710015530.7 discloses a lightning protection device for moving or fixing objects, in this patent application, the positive plate, the dielectric plate, the negative plate and the conductive needle seat are integrated together, the conductive needle at the upper end of the conductive needle seat is utilized to attract thundercloud charges, and plasma generated by discharging between the positive plate and the negative plate is utilized to neutralize the thundercloud charges and ground positive charges respectively, so that the downward passage of the thundercloud is blocked, and the damage of direct lightning to the blade of the wind driven generator is avoided.
The traditional wind driven generator tabletting manufacturing process is as follows: the wind driven generator blade is manufactured by two halves, firstly, the demolding cloth and the glass fiber cloth are respectively covered on two molds, then the epoxy resin is sucked into the glass fiber cloth by utilizing vacuum negative pressure, and then the whole is solidified and formed by a heating process. And (3) after the two half blades manufactured respectively are processed and glued, the two half blades are assembled, reinforced, solidified and cooled, and then the two half blades are lifted. Before die assembly, the lower end of the plasma device can be embedded between the tips of the two blades, and then the lower end of the plasma device and the tips of the two blades are tightly fixed together by using poured glue after die assembly, but for the existing blades mounted on the generator, the mounting process cannot be applied, and an assembly structure suitable for the finished blades is urgently needed.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a push rod type assembly structure of a lightning protection device at the tip of a blade of a wind driven generator. In the utility model, pushing forces generated during rotation of the two protruding parts or elastic force of the springs are utilized to push rods on two sides to move in the guide grooves and drive the swinging body to swing towards the outer side of the installation body, after the installation body is completely inserted into the tip of the blade, the swinging body is clamped on the inner wall of the blade, then the installation body and the blade are tightly fixed together by pouring glue, the outer surface of the lower polar plate and the outer surface of the blade below the installation body are smoothly transited, so that the blade and the lightning protection device are integrated into a whole, the aerodynamic requirements are more met as a whole, the installation is convenient at the tip of the installed blade, and the damage of large current generated by direct lightning to the blade and other electrical equipment can be effectively avoided.
The technical scheme adopted by the utility model is as follows:
the utility model provides a lightning protection device push rod formula assembly structure of aerogenerator blade point, includes the dielectric body, is provided with upper polar plate and the lower polar plate of mutual interval on the dielectric body, its characterized in that: the medium body lower extreme sets up the installation body, and this installation body both sides all are provided with the pendulum body that can swing, is provided with drive unit in the installation body, and this drive unit enables two pendulum bodies and swings to the installation body outside respectively.
Further: when the swinging body does not swing to the outer side of the installation body, the installation body can be inserted into the blade from the opening of the tip of the blade; when the installation body is inserted into the blade, the installation body can not be separated from the opening of the tip of the blade due to the swing of the swing body to the outer side of the installation body.
Further: the installation body is internally provided with a cavity, the installation bodies at two sides of the cavity are respectively hinged with a swinging body capable of swinging, one end of each swinging body is hinged with one push rod, and the other end of each push rod can be driven by a driving part arranged in the cavity to swing the swinging body to the outer side of the installation body.
Further: the two sides of the cavity are respectively provided with a general transverse guide groove, and the push rod is arranged in each guide groove in a sliding way.
Further: the driving part comprises a rotating shaft, two protruding parts with opposite directions are arranged in the radial direction of the rotating shaft, and each protruding part can drive a push rod at the same side to move in the guide groove and drive the swinging body to swing towards the outer side of the installation body through the push rod. .
Further: each protruding part pushes the pushing rod on the same side to move outwards to the limit position, and the other end of the pushing rod can be clamped through a groove formed in the outer surface of the protruding part.
Further: the cavity is internally provided with a substantially transverse guide groove, and the push rods are arranged in the guide groove in a sliding manner.
Further: the driving part comprises a spring, a spring is arranged in a guide groove between the two push rods, and the spring can push the push rods to move and drive the swinging body to swing to the outer side of the installation body through the push rods.
Further: the front end surface and the rear end surface of the installation body aligned with the cavity are provided with open holes or slots, and the bottom surface of the installation body aligned with the cavity is provided with open holes or slots.
Further: the upper polar plate and the lower polar plate are sleeved at the upper end and the lower end of the dielectric body at intervals, and the upper polar plate is provided with a flash part.
The preferable scheme is as follows: the medium body is in smooth transition with the outer surface of the blade through the outer surface of the lower polar plate after the medium body is connected with the tip of the blade through the mounting body.
The preferable scheme is as follows: the upper polar plate is a conductive cover which is sleeved at the upper end of the dielectric body, the inner surface of the conductive cover is attached to the outer surface of the upper end of the dielectric body, and the side edges of the two sides of the conductive cover are gradually inclined outwards along with the side edges of the two sides of the dielectric body from top to bottom.
The preferable scheme is as follows: the lower polar plate is a conductive sleeve, the conductive sleeve is sleeved at the lower end of the medium body, the inner surface of the conductive sleeve is attached to the outer surface of the lower end of the medium body, and the side edges of the two sides of the conductive sleeve are gradually inclined outwards along with the side edges of the two sides of the medium body from top to bottom.
The preferable scheme is as follows: the bottom of the upper polar plate is provided with a plurality of convex teeth facing the lower polar plate.
The utility model has the advantages and positive effects that:
in the utility model, pushing forces generated during rotation of the two protruding parts or elastic force of the springs are utilized to push rods on two sides to move in the guide grooves and drive the swinging body to swing towards the outer side of the installation body, after the installation body is completely inserted into the tip of the blade, the swinging body is clamped on the inner wall of the blade, then the installation body and the blade are tightly fixed together by pouring glue, the outer surface of the lower polar plate and the outer surface of the blade below the installation body are smoothly transited, so that the blade and the lightning protection device are integrated into a whole, the aerodynamic requirements are more met as a whole, the installation is convenient at the tip of the installed blade, and the damage of large current generated by direct lightning to the blade and other electrical equipment can be effectively avoided.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic illustration of FIG. 1 assembled with a blade;
FIG. 3 is a schematic illustration of a drive member;
FIG. 4 is a schematic view of the swing body of FIG. 3 swung into position outside the mounting body;
FIG. 5 is a schematic view of the projection arrangement groove of FIG. 4;
FIG. 6 is a schematic view of another drive component;
FIG. 7 is a schematic view of the swing body of FIG. 6 swung into position outside the mounting body;
fig. 8 is a schematic view of a lower plate provided with conductive strips or wires.
Detailed Description
The utility model will now be further illustrated by reference to the following examples, which are intended to be illustrative, not limiting, and are not intended to limit the scope of the utility model.
The utility model discloses a push rod type assembly structure of a lightning protection device at the tip of a blade of a wind driven generator, which comprises a dielectric body 5, wherein an upper polar plate 3 and a lower polar plate 6 which are mutually spaced are arranged on the dielectric body, and the utility model is innovative in that: the medium body lower extreme sets up installation body 7, and this installation body both sides all are provided with the pendulum body 10 that can swing, is provided with drive unit in the installation body, and this drive unit can make two pendulum bodies swing to the installation body outside respectively. When the swinging body does not swing to the outer side of the installation body, the installation body can be inserted into the blade from the opening 14 at the tip end of the blade 13 (as shown in fig. 3 and 6); the swing of the swing body to the outside of the installation body when the installation body is inserted into the blade can prevent the installation body from being separated from the opening of the tip of the blade (as shown in fig. 4, 5 and 7).
The installation body is internally provided with a cavity, the installation bodies at two sides of the cavity are respectively hinged with a swinging body capable of swinging through swinging body hinge shafts 23, each swinging body is hinged with one end of a push rod 20 through a push rod hinge shaft 22, and the other end of each push rod can be driven by a driving part arranged in the cavity to swing the swinging body to the outside of the installation body (the left side and the right side in the figure are the outside of the installation body).
The general structure of the mounting body is: the top plate 16, the end plate 17 and the connecting plate 24 are included, the bottom surfaces of the top plate and the medium body 5 are fixed in a common fixing mode such as bonding, mortise and tenon fixing, bolt fixing and the like, and the top plate and the medium body can be integrally manufactured. Two end plates which are mutually fixed with the top plate in the common fixing mode are arranged at the front end and the rear end of the top plate or two end plates are integrally manufactured at the front end and the rear end of the top plate, the space between the two end plates and the top plate forms the cavity, two sides of the bottom surfaces of the two end plates are respectively connected with a connecting plate 24 for improving the connection strength between the two end plates, the connecting plates can also be fixed with the end plates in the common fixing mode or can be integrally manufactured with the end plates, and the top plate, the end plates and the connecting plates can be made of the same materials as the blades or other firm and durable materials.
The front end plate surface and the rear end plate surface of the mounting body aligned with the cavity are provided with openings or grooves 12, and the bottom surface of the mounting body aligned with the cavity is provided with openings or grooves (the space between the two connecting plates forms the openings or grooves). The holes, the grooves and the gaps between the swinging body and the two end plates are used for filling glue, the glue can be fully filled in the positions of the mounting body and the positions between the mounting body and the inner wall of the blade, and the mounting body and the tip of the blade can be effectively fixed after the glue is solidified.
The driving part has two structures, and the following description is given respectively:
1. the driving parts are shown in figures 1, 2, 3, 4 and 5
The driving part comprises a rotating shaft 9, two protruding parts 18 with opposite directions are arranged in the radial direction of the rotating shaft, and the two protruding parts can be integrally manufactured by the rotating shaft or symmetrically manufactured on two sides of a nut screwed and fixed on the rotating shaft.
The two sides of the cavity are respectively provided with a general transverse guide groove, and the push rod is arranged in each guide groove in a sliding way. Each guide channel comprises two guide plates 21 located above and below, both of which are mounted substantially transversely and the vertical space between them forms the guide channel. Because the swinging body is in a swinging state, and the push rod is hinged on the swinging body, in order not to influence the vertical movement which occurs when the push rod pushes the swinging body to move to the outer side of the installation body, the vertical height of a space (a guide groove) between the two guide plates is larger than the outer diameter of the push rod, as shown in fig. 3 and 4, the push rod on the left side is close to the lower guide plate before moving in fig. 3, and becomes close to the upper guide plate after pushing the swinging body to move to the outer side of the installation body.
The two ends of the end plate of the installation body, which extend out of the rotating shaft, can be limited by the positioning pin and the positioning ring, as shown in fig. 1, a polygonal nut 8 or a polygonal end is welded on the end of the rotating shaft, which extends out of the front end of the end plate of the installation body, the polygonal nut or the end is preferably hexagonal, and the nut or the end is arranged for facilitating the external tool to adjust the rotation of the rotating shaft.
As shown in fig. 5, each of the projections pushes the same-side push rod to move outward to the limit position, and the other end of the push rod is caught by a groove 25 provided on the outer surface of the projection.
The use process of the driving component is as follows:
the blade rotates and the tip of the blade is positioned at a downward low point, and an installer removes the tip of the blade by using a saw or other tool according to the size;
inserting the installation body into the blade from the blade tip opening 14, drilling an operation hole 15 at the position where the blade is aligned with the rotating shaft, wherein after the installation body is in place, the end part of the rotating shaft and the nut or the end part are just positioned at the operation hole, and the internal state of the installation body is shown in fig. 3;
the swing body is in the shape of two long plates, the upper ends of the swing body are hinged between the front end plate and the rear end plate through hinge shafts, the middle part of the left swing body is provided with a push rod, the upper part of the right swing body is provided with a push rod, and each push rod is positioned in one guide groove;
the installer uses the inner hexagonal tool to clamp the hexagonal nut or the hexagonal rotating shaft end part, and rotates the tool clockwise, and the rotating shaft drives the two protruding parts to rotate, and simultaneously, the outer side end parts 19 of the two protruding parts respectively push the swinging body to the outer side of the installation body through the push rod at the same side, so that the swinging body is pushed to be in place as shown in fig. 4;
the structure as shown in fig. 5 can also be adopted, a groove 25 is formed on the surface of the outer end of the protruding part aligned with the push rod, and when the protruding part rotates clockwise in place, the groove clamps the other end of the push rod, so that the swinging body is in a fixed position and cannot swing towards the inner side of the installation body;
at this moment, the lightning protection device is wholly clamped at the tip of the blade, an installer takes down the tool, glue is poured into the blade from the operation hole, the glue enters and fills the space between the installation body and the blade through the opening or the slot of the end plate, the opening or the slot of the two connecting plates, the space between the two end plates and the like, the glue can be quick-drying type expansion glue, and after the glue is solidified, the lightning protection device and the blade are mutually fixed.
In order to improve the bonding degree of the swinging body and the inner wall of the blade, the bonding surface 11 can be manufactured at the bonding position of the swinging body and the blade so as to increase the bonding area of the swinging body and the inner wall of the blade.
After the fixation is completed, the operation holes are plugged by using materials such as glass fiber cloth, epoxy resin and the like, and the surface of the blade is repaired by using a traditional repairing mode.
2. The driving parts are shown in fig. 6 and 7
The driving member is a spring 26. The cavity is internally provided with a substantially transverse guide groove, the inside of the two ends of the guide groove is slidably provided with the push rods, and a compressed spring is arranged in the guide groove between the two push rods.
The guide groove comprises two elongated guide plates 21 of a length longer than the guide plate in item 1, located above and below, both of which are mounted substantially transversely and the vertical space between them forms the guide groove. Because the swinging body is in a swinging state, and the push rod is hinged on the swinging body, in order not to influence the vertical movement which occurs when the push rod pushes the swinging body to move to the outer side of the installation body, the vertical height of a space (a guide groove) between the two guide plates is larger than the outer diameter of the push rod, as shown in fig. 6 and 7, the push rod on the left side is close to the lower guide plate before moving in fig. 3, and becomes close to the upper guide plate after pushing the swinging body to move to the outer side of the installation body.
The use process of the driving component is as follows:
the blade rotates and the tip of the blade is positioned at a downward low point, and an installer removes the tip of the blade by using a saw or other tool according to the size;
the installer presses the swing bodies on the two sides by hands to further compress the springs of the guide grooves, and then inserts the installation body into the blade from the blade tip opening 14, and the internal state of the installation body is shown in fig. 6;
the structure of the swinging body is the same as that in the 1 st item;
the springs push the swinging body to the outer side of the installation body through the push rods under the action of self-elasticity, and the swinging body is pushed to the right position as shown in fig. 7;
at this moment, the lightning protection device is integrally clamped at the tip of the blade, an installer can fill glue into the blade from a gap between the installation body and the tip of the blade or a hole formed in the blade, the glue enters and fills the space between the installation body and the blade through the opening or the slot of the end plate, the openings or the slots of the two connecting plates, the space between the two end plates and the like, and the lightning protection device and the blade are mutually fixed after the glue is solidified.
In order to improve the bonding degree of the swinging body and the inner wall of the blade, the bonding surface 11 can be manufactured at the bonding position of the swinging body and the blade so as to increase the bonding area of the swinging body and the inner wall of the blade.
The structure of the lightning protection device is as follows:
the upper electrode plate and the lower electrode plate are sleeved at the upper end and the lower end of the dielectric body at intervals as shown in fig. 1, and a plurality of flash receiving rods (flash receiving parts) or a plurality of flash receiving bulges (flash receiving parts) can be arranged on the upper electrode plate as shown in fig. 1 and 2. The dielectric body is in smooth transition with the outer surface of the blade through the outer surface of the lower polar plate after the mounting body is connected with the blade tip. After the dielectric body and the blade are assembled, the whole of the outer surfaces of the lower polar plate, the upper polar plate and the dielectric body between the lower polar plate and the upper polar plate and the outer surface of the blade are approximately the appearance of the blade designed originally.
In order to realize the appearance of the blade in the original design, the side edges of the two sides of the medium body are gradually and outwards inclined from top to bottom and are in smooth transition with the side edges of the blade at the joint.
The upper polar plate 3 is a conductive cover which is sleeved at the upper end of the dielectric body, the inner surface of the conductive cover is attached to the outer surface of the upper end of the dielectric body 5, and the side edges of the two sides of the conductive cover are gradually inclined outwards along with the side edges of the two sides of the dielectric body from top to bottom. The lower polar plate 6 is a conductive sleeve which is sleeved at the lower end of the medium body, the inner surface of the conductive sleeve is attached to the outer surface of the lower end of the medium body, and the side edges of the two sides of the conductive sleeve are gradually inclined outwards from top to bottom along with the side edges of the two sides of the medium body.
The outline of each structure is approximately as follows: the conductive cover is shaped like a higher mountain (the projection of which is approximately a higher trapezoid) as shown in the figure, and the conductive sleeve is shaped like a lower mountain (the projection of which is approximately a lower trapezoid) which is wider as shown in the figure. The height of the short mountain-shaped conductive sleeve is approximately 20-30mm, and the longitudinal thickness of each part of the bottom edge below in the figure is the same as the longitudinal thickness of the position where the blade 13 below in the figure is aligned.
If the conductive cover is provided with the lightning receiving bars, a plurality of top lightning receiving bars 2 are arranged on the top edge of the high trapezoid of the conductive cover, two in the figure; a plurality of side flashbars 1 are respectively arranged on two waists of the high trapezoid, and each side is three in the figure. The heights of the top receiving flash rod and the side receiving flash rod are 20-100mm. In addition, as shown in fig. 8, at least one top connection protrusion 27, one in the figure, may be provided on the top side of the high trapezoid of the conductive cover; a plurality of side flash protrusions 28 are provided on each of the two waists of the high trapezoid, three on each side in the figure.
In order to reduce the weight of the upper electrode plate, a plurality of weight reducing holes 4 or weight reducing grooves may be provided on the conductive cover body of the upper electrode plate as shown in fig. 1 and 2. The lower plate may also be provided with lightening holes or grooves to lighten the overall weight (not shown). The upper and lower plates may not be provided with weight reducing holes or grooves as shown in fig. 8.
The gap between the upper polar plate and the lower polar plate is approximately 25-35mm, a plurality of convex teeth 29 facing the lower polar plate are arranged on the bottom surface of the upper polar plate, the tooth heights of the convex teeth are 5-10mm, the tooth pitches are 5-10mm, and gap discharge is formed between the tips of the convex teeth and the lower polar plate.
The upper polar plate, the flash receiving rod and the lower polar plate are made of corrosion-resistant magnesium-aluminum alloy, so that the upper polar plate, the flash receiving rod and the lower polar plate have enough strength and excellent corrosion resistance in weather such as rain, snow, wind and frost. The upper polar plate and the flash receiving rod can also be made of non-metal materials capable of conducting electricity, so long as the lightning cloud charge can be attracted to the convex teeth for discharging. The dielectric body and the mounting body can be made of the same material as the blade, and can also be made of materials such as corrosion-resistant nylon, carbon fiber and the like.
The lower pole plate is provided with a conductive strip 28 or a conductive wire which is connected with the original conductive strip or conductive wire arranged inside the blade, so that the detection module of the wind driven generator can receive the current at the lower pole plate after the charge neutralization. The installer connects the conductive strip or wire with the conductive strip or wire in the blade, and then installs the installation body.
When the thundercloud approaches the wind driven generator, the lightning receiving rod or the upper electrode rapidly attracts the thundercloud charges and accumulates at the upper polar plate, as the charge quantity is continuously increased, the lower polar plate attracts the ground opposite charges to the lower polar plate through the original conductive belt or conductive wire, as a gap exists between the upper polar plate and the lower polar plate, the cloud charges form a potential difference at the position, when the voltage value between the gaps reaches a set threshold value, pulse discharge is started, high-concentration plasmas are generated while the charges are consumed, excited state plasmas generated at the periphery act on an atmospheric electric field when the wind driven generator operates or stops, and the voltage of the local cloud ground electric field is reduced by the plasmas, so that the local electric field potential is weakened.
The specific charge neutralization principle can be referred to Chinese patent CN201720024082.2 (a lightning protection device for moving or fixed objects), and CN201721413001.4 (equivalent ion resistor Lei Shanyuan, lightning-proof leakage voltage detection device and comprehensive lightning protection system).
In the utility model, pushing forces generated during rotation of the two protruding parts or elastic force of the springs are utilized to push rods on two sides to move in the guide grooves and drive the swinging body to swing towards the outer side of the installation body, after the installation body is completely inserted into the tip of the blade, the swinging body is clamped on the inner wall of the blade, then the installation body and the blade are tightly fixed together by pouring glue, the outer surface of the lower polar plate and the outer surface of the blade below the installation body are smoothly transited, so that the blade and the lightning protection device are integrated into a whole, the aerodynamic requirements are more met as a whole, the installation is convenient at the tip of the installed blade, and the damage of large current generated by direct lightning to the blade and other electrical equipment can be effectively avoided.
Claims (14)
1. The utility model provides a lightning protection device push rod formula assembly structure of aerogenerator blade point, includes the dielectric body, is provided with upper polar plate and the lower polar plate of mutual interval on the dielectric body, its characterized in that: the medium body lower extreme sets up the installation body, and this installation body both sides all are provided with the pendulum body that can swing, is provided with drive unit in the installation body, and this drive unit enables two pendulum bodies and swings to the installation body outside respectively.
2. The push rod type assembly structure of the lightning protection device for the blade tip of the wind driven generator according to claim 1, wherein the push rod type assembly structure is characterized in that: when the swinging body does not swing to the outer side of the installation body, the installation body can be inserted into the blade from the opening of the tip of the blade; when the installation body is inserted into the blade, the installation body can not be separated from the opening of the tip of the blade due to the swing of the swing body to the outer side of the installation body.
3. The push rod type assembly structure of a lightning protection device for a blade tip of a wind driven generator according to claim 1 or 2, wherein: the installation body is internally provided with a cavity, the installation bodies at two sides of the cavity are respectively hinged with a swinging body capable of swinging, one end of each swinging body is hinged with one push rod, and the other end of each push rod can be driven by a driving part arranged in the cavity to swing the swinging body to the outer side of the installation body.
4. A push rod type assembling structure of a lightning protection device for a blade tip of a wind driven generator according to claim 3, wherein: the two sides of the cavity are respectively provided with a general transverse guide groove, and the push rod is arranged in each guide groove in a sliding way.
5. The push rod type assembly structure of the lightning protection device for the blade tip of the wind driven generator according to claim 4 is characterized in that: the driving part comprises a rotating shaft, two protruding parts with opposite directions are arranged in the radial direction of the rotating shaft, and each protruding part can drive a push rod at the same side to move in the guide groove and drive the swinging body to swing towards the outer side of the installation body through the push rod.
6. The push rod type assembly structure of the lightning protection device for the blade tip of the wind driven generator according to claim 5, wherein the push rod type assembly structure is characterized in that: each protruding part pushes the pushing rod on the same side to move outwards to the limit position, and the other end of the pushing rod can be clamped through a groove formed in the outer surface of the protruding part.
7. A push rod type assembling structure of a lightning protection device for a blade tip of a wind driven generator according to claim 3, wherein: the cavity is internally provided with a substantially transverse guide groove, and the push rods are arranged in the guide groove in a sliding manner.
8. The push rod type assembly structure of the lightning protection device for the blade tip of the wind driven generator according to claim 7, wherein the push rod type assembly structure is characterized in that: the driving part comprises a spring, a spring is arranged in a guide groove between the two push rods, and the spring can push the push rods to move and drive the swinging body to swing to the outer side of the installation body through the push rods.
9. The push rod type assembling structure of the lightning protection device for the blade tip of the wind driven generator according to claim 4 or 5 or 6 or 7 or 8, wherein the push rod type assembling structure comprises the following components: the front end surface and the rear end surface of the installation body aligned with the cavity are provided with open holes or slots, and the bottom surface of the installation body aligned with the cavity is provided with open holes or slots.
10. The push rod type assembling structure of the lightning protection device for the blade tip of the wind driven generator according to claim 1 or 2 or 4 or 5 or 6 or 7 or 8, wherein the structure is characterized in that: the upper polar plate and the lower polar plate are sleeved at the upper end and the lower end of the dielectric body at intervals, and the upper polar plate is provided with a flash part.
11. The push rod type assembling structure of the lightning protection device for the blade tip of the wind driven generator according to claim 1 or 2 or 4 or 5 or 6 or 7 or 8, wherein the structure is characterized in that: the medium body is in smooth transition with the outer surface of the blade through the outer surface of the lower polar plate after the medium body is connected with the tip of the blade through the mounting body.
12. The push rod type assembling structure of the lightning protection device for the blade tip of the wind driven generator according to claim 1 or 2 or 4 or 5 or 6 or 7 or 8, wherein the structure is characterized in that: the upper polar plate is a conductive cover which is sleeved at the upper end of the dielectric body, the inner surface of the conductive cover is attached to the outer surface of the upper end of the dielectric body, and the side edges of the two sides of the conductive cover are gradually inclined outwards along with the side edges of the two sides of the dielectric body from top to bottom.
13. The push rod type assembling structure of the lightning protection device for the blade tip of the wind driven generator according to claim 1 or 2 or 4 or 5 or 6 or 7 or 8, wherein the structure is characterized in that: the lower polar plate is a conductive sleeve, the conductive sleeve is sleeved at the lower end of the medium body, the inner surface of the conductive sleeve is attached to the outer surface of the lower end of the medium body, and the side edges of the two sides of the conductive sleeve are gradually inclined outwards along with the side edges of the two sides of the medium body from top to bottom.
14. The push rod type assembling structure of the lightning protection device for the blade tip of the wind driven generator according to claim 1 or 2 or 4 or 5 or 6 or 7 or 8, wherein the structure is characterized in that: the bottom of the upper polar plate is provided with a plurality of convex teeth facing the lower polar plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222913149.1U CN219513768U (en) | 2022-11-03 | 2022-11-03 | Push rod type assembly structure of lightning protection device at tip of blade of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222913149.1U CN219513768U (en) | 2022-11-03 | 2022-11-03 | Push rod type assembly structure of lightning protection device at tip of blade of wind driven generator |
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