CN114006318B

CN114006318B - Cable retainer of wind turbine generator system

Info

Publication number: CN114006318B
Application number: CN202111297126.6A
Authority: CN
Inventors: 冯小川; 王冲; 田伟康; 王强; 吉日木图; 宁钊
Original assignee: Huaneng Tongliao Wind Power Co Ltd
Current assignee: Huaneng Tongliao Wind Power Co Ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2023-08-01
Anticipated expiration: 2041-11-03
Also published as: CN114006318A; DE202022103580U1

Abstract

The invention relates to the technical field of wind power generation and discloses a cable guard ring of a wind turbine generator, which comprises a guard ring body and a plurality of sliding seats; the guard ring body is flat, a through hole which penetrates through the guard ring body and is used for a lifting rope to pass through so as to be fixed on the guard ring body is formed in the middle of the guard ring body, and a plurality of first depressions are formed in the outer edge of the guard ring body at intervals; the sliding seats are respectively arranged on the outer side of the guard ring body, and the first depressions are in one-to-one correspondence with the sliding seats; the sliding seats can slide to preset positions along the direction of the sliding seats facing the middle part of the guard ring body, and when the sliding seats slide to the preset positions, the sliding seats and the corresponding first concave grooves enclose through holes for the cables to pass through. According to the invention, the cable is not required to be arranged before being arranged, but is arranged on the wind turbine generator, so that the protection effect on the overhanging section is good, and the installation difficulty is reduced.

Description

Cable retainer of wind turbine generator system

Technical Field

The invention relates to the technical field of wind power generation, in particular to a cable guard ring of a wind turbine generator.

Background

The wind turbine generator is a power generation device for converting wind energy into electric energy.

When generating electricity, wind direction can change from time to time, for obtaining better generating effect, wind turbine generator system's blade often needs to set up to rotatable yaw structure for the blade can be according to wind direction change direction, reaches the effect of following the wind, obtains higher generating effect.

The cables in the tower near the blades hang to be twisted when the blades yaw, and the twisted cables are easy to collide with the inner wall of the tower, so that cable guard rings are required to be arranged on the hanging sections.

The prior art retainer is typically mounted with the plurality of cables prior to mounting the cables on the tower, and the position of the retainer is adjusted so that the retainer is on the overhanging section when the cables are mounted on the tower. However, this approach is prone to errors in the mounting position of the retainer, resulting in its inability to be accurately secured to, and even mounted on, the overhanging section that is prone to collisions with the inner wall of the tower.

Disclosure of Invention

The purpose of the invention is that: the cable guard ring of the wind turbine generator is accurate in installation position.

In order to achieve the above purpose, the invention provides a wind turbine generator cable guard ring, which comprises a guard ring body and a plurality of sliding seats; the guard ring body is flat, a through hole which penetrates through the guard ring body and is used for a lifting rope to pass through so as to be fixed on the guard ring body is formed in the middle of the guard ring body, and a plurality of first depressions are formed in the outer edge of the guard ring body at intervals; the sliding seats are respectively arranged on the outer side of the guard ring body, and the first depressions are in one-to-one correspondence with the sliding seats; the sliding seats can slide to preset positions along the direction of the sliding seats facing the middle part of the guard ring body, and when the sliding seats slide to the preset positions, the sliding seats and the corresponding first concave grooves enclose through holes for the cables to pass through.

Further, a matching hole for matching with a hook body connected to the tail end of the lifting rope is formed in one side face of the guard ring body; the inner wall of the through hole is provided with a strip-shaped groove, the strip-shaped groove is arranged along the extending direction of the through hole, one end of the strip-shaped groove is opened and arranged on one side face of the guard ring body, and the other end of the strip-shaped groove is opened and arranged on the other side face of the guard ring body; under the projection of through-hole extending direction, the cooperation hole with the bar groove is around the axis interval setting of through-hole.

Further, the number of the matching holes is multiple, and the number of the strip-shaped grooves is multiple; under the projection of the extending direction of the through hole, a plurality of the matching holes and a plurality of the strip-shaped grooves are alternately arranged.

Further, the device also comprises a frame body with a supporting surface and a plurality of electromagnets; the guard ring body is disc-shaped, the supporting surface is annular, the inner diameter of the supporting surface is larger than the outer diameter of the guard ring body, the sliding seats are respectively supported on the supporting surface, and the sliding seats are arranged at intervals in an annular mode; the frame body is also provided with a power supply contact for connecting with a power supply and a plurality of first contacts respectively electrically connected with the power supply contact; the electromagnets are in one-to-one correspondence with the first depressions, the electromagnets are respectively arranged on the edges of the corresponding first depressions, the electromagnets are respectively provided with second contacts, and the first contacts and the second contacts are in one-to-one correspondence.

Further, the frame body comprises a seat body arranged on the inner side of the supporting surface, and the seat body is provided with a preset surface which is staggered with the supporting surface; the plurality of first contacts are respectively arranged on the preset surface.

Further, a plurality of second recesses are respectively arranged on each sliding seat; the first recesses and the second recesses are in one-to-one correspondence and mutually fit, and each via hole is respectively surrounded by the corresponding first recess and second recess.

Further, positioning blocks are arranged on the sliding seats, and a plurality of positioning holes which are respectively matched with the positioning blocks are formed in the outer edge of the guard ring body.

Further, a rotating shaft perpendicular to the extending direction of the positioning hole and an embedded block arranged on the rotating shaft are arranged on the inner wall of the positioning hole; an embedded groove matched with the embedded block is formed in the side wall of the positioning block; the embedded block can rotate around the axis of the rotating shaft between a first position and a second position, and when the embedded block is positioned at the first position, the embedded block protrudes out of the inner wall of the positioning hole and can be embedded into the embedded groove; when the embedded block is positioned at the second position, the embedded block is embedded on the inner wall of the positioning hole.

Further, the device also comprises an elastic piece sleeved on the rotating shaft and used for keeping the embedded block at the first position and a driving mechanism used for driving the embedded block to switch from the first position to the second position.

Further, the device also comprises a frame body with a supporting surface; the guard ring body is disc-shaped, the supporting surface is annular, the inner diameter of the supporting surface is larger than the outer diameter of the guard ring body, the sliding seats are respectively supported on the supporting surface, and the sliding seats are arranged at intervals in an annular mode; the frame body is also provided with a third contact, and the retainer body is provided with a fourth contact corresponding to the third contact; the drive mechanism drives the insert block to switch from the first position to the second position when the third contact is in contact with the fourth contact.

Compared with the prior art, the cable retainer of the wind turbine generator set has the beneficial effects that:

in the embodiment of the invention, the cable is not required to be arranged before being arranged, but is arranged on the wind turbine generator, so that the protection effect on the overhanging section is good, and the installation difficulty is reduced.

Drawings

FIG. 1 is a block diagram of a wind turbine cable retainer in an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the direction A-A of FIG. 1 of a wind turbine cable retainer in accordance with an embodiment of the present invention.

FIG. 3 is a cross-sectional view taken along direction B-B of FIG. 1 of a wind turbine cable retainer according to an embodiment of the present invention.

FIG. 4 is an enlarged view of FIG. 3 at C of a wind turbine cable retainer according to an embodiment of the present invention.

FIG. 5 is an enlarged view of FIG. 3 at D of a wind turbine cable retainer according to an embodiment of the present invention.

FIG. 6 is a block diagram of a wind turbine cable retainer slider and retainer body in accordance with an embodiment of the present invention when a via is formed.

100, a retainer body; 110. a through hole; 120. a first recess; 130. a mating hole; 140. a bar-shaped groove; 150. an electromagnet; 160. a second contact; 170. a fourth contact; 180. positioning holes; 181. an embedded block; 190. a rotating shaft;

200. a slide; 210. a second recess; 220. a positioning block; 221. an embedding groove;

300. a via hole;

400. a cable;

500. a frame body; 510. a support surface; 520. a base; 521. a first contact; 522. a predetermined surface; 530. and a third contact.

Detailed Description

The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

As shown in fig. 1 to 6, a guard ring 400 for a wind turbine generator cable according to a preferred embodiment of the present invention includes a guard ring body 100 and a plurality of sliders 200; the guard ring body 100 is flat, a through hole 110 is formed in the middle of the guard ring body 100, through which a hanging rope passes to be fixed on the guard ring body 100, and a plurality of first recesses 120 are formed at intervals on the outer edge of the guard ring body 100; the sliding bases 200 are respectively arranged on the outer side of the guard ring body 100, and the first recesses 120 are in one-to-one correspondence with the sliding bases 200; the plurality of sliding carriages 200 can slide to a predetermined position along the direction of the sliding carriages 200 towards the middle of the guard ring body 100, and when each sliding carriage 200 slides to the predetermined position, each sliding carriage 200 and the corresponding first recess 120 enclose a via hole 300 for passing a cable 400.

In this embodiment, when protecting the cable 400 of the suspension section of the wind turbine generator, the cable 400 may be protected after the cable 400 is installed, and the specific steps are as follows:

firstly, after the cables 400 are installed, the number of the first recesses 120 of the retainer body 100 is set to be the same as the number of the cables 400, and each cable 400 is respectively clamped into one of the first recesses 120; then, the retainer body 100 is lifted up by using a pulley or other structure, and during this time, the cable 400 is not easily separated from the retainer body 100 due to friction between the cable 400 and the inner wall of the first recess 120; then, the plurality of sliding bases 200 are set at the positions corresponding to the first recesses 120 by lifting or other means, so that the sliding bases 200 can be matched with the retainer body 100 and enclose the corresponding first recesses 120 to form the via holes 300, at this time, the friction force between the inner walls of the via holes 300 and the cable 400 is large, and the cable is not easy to fall off, so that the lifting ropes can be removed.

Wherein, the end of the lifting rope is provided with a lifting hook, and a hook body on the lifting hook passes through the through hole 110 from the upper side and is hooked on the guard ring body 100.

Compared with the prior art, the cable 400 is not required to be arranged before being installed, but the cable 400 is installed on the wind turbine generator, so that the protection effect on the hanging section is good, and the installation difficulty is reduced.

Further, referring to fig. 1 to 6, in one embodiment, a coupling hole 130 for coupling with a hook coupled to an end of the hanging string is formed at one side surface of the retainer body 100; a bar-shaped groove 140 is formed in the inner wall of the through hole 110, the bar-shaped groove 140 is arranged along the extending direction of the through hole 110, one end of the bar-shaped groove 140 is opened and arranged on one side surface of the guard ring body 100, and the other end of the bar-shaped groove 140 is opened and arranged on the other side surface of the guard ring body 100; the mating hole 130 and the bar-shaped groove 140 are disposed at intervals around the axis of the through hole 110 under the projection of the extending direction of the through hole 110.

In this embodiment, the hook body is passed through the retainer body 100 by the bar-shaped groove 140, and then the hook is rotated so that the hook body is rotated to a position corresponding to the fitting hole 130 and is fitted into the fitting hole 130.

In this embodiment, the arrangement of the strip groove 140 and the mating hole 130 enables the hook body to stably transmit the force to the retainer body 100, so as to drive the retainer body 100 to rise.

Further, referring to fig. 1 to 6, in one embodiment, the number of the fitting holes 130 is plural, and the number of the bar grooves 140 is plural; the plurality of fitting holes 130 and the plurality of bar-shaped grooves 140 are arranged alternately under the projection of the extending direction of the through hole 110.

In this embodiment, the retainer body 100 is lifted by a plurality of hooks.

Further, referring to fig. 1 to 6, in one embodiment, the device further includes a frame 500 having a supporting surface 510 and a plurality of electromagnets 150; the guard ring body 100 is disc-shaped, the supporting surface 510 is annular, the inner diameter of the supporting surface is larger than the outer diameter of the guard ring body 100, the plurality of sliding seats 200 are respectively supported on the supporting surface 510, and the plurality of sliding seats 200 are annularly arranged at intervals; the frame 500 further has a power contact for connection to a power source and a plurality of first contacts 521 electrically connected to the power contacts, respectively; the electromagnets 150 are in one-to-one correspondence with the first recesses 120, each electromagnet 150 is respectively disposed on an edge of the corresponding first recess 120, and each electromagnet 150 is respectively provided with a second contact 160, and the first contacts 521 and the second contacts 160 are in one-to-one correspondence.

In this embodiment, the plurality of sliders 200 are lifted by the frame 500, the plurality of sliders 200 are respectively placed on the supporting surface 510 at intervals, after the plurality of sliders 200 are lifted to a proper position, the first contacts 521 and the second contacts 160 are contacted, and the respective electromagnets 150 respectively attract the corresponding sliders 200, so that the corresponding sliders 200 are attached to the edges of the first recess 120 to form the via hole 300.

Further, referring to fig. 1 to 6, in one embodiment, the frame 500 includes a base 520 disposed on an inner side of the support surface 510, the base 520 having a predetermined surface 522 offset from the support surface 510; a plurality of the first contacts 521 are respectively provided on the predetermined surfaces 522.

In this embodiment, since the cable 400 is charged inside, in order to avoid an accident of leakage, the electromagnet 150 needs to be kept uncharged during operation, so as to reduce the risk of leakage.

Further, referring to fig. 1 to 6, in one embodiment, each of the carriages 200 is provided with a plurality of second recesses 210; the first recesses 120 and the second recesses 210 are in one-to-one correspondence and are mutually matched, and each via 300 is respectively surrounded by the corresponding first recess 120 and the corresponding second recess 210.

In the present embodiment, in order to better fix the retainer body 100 and the plurality of sliders 200 to the cable 400, the first recess 120 and the second recess 210 together define the via 300, so that the contact area with the cable 400 is increased and the friction with the cable 400 is increased.

Further, referring to fig. 1 to 6, in one embodiment, each slide 200 is provided with a positioning block 220, and the outer edge of the retainer body 100 is provided with a plurality of positioning holes 180 respectively adapted to each positioning block 220.

In the present embodiment, the relative positions of the respective sliders 200 and the retainer body 100 are determined by the engagement of the positioning holes 180 and the positioning blocks 220.

Wherein, when the electromagnet 150 is used to attract the slide 200, the electromagnet 150 is disposed on the outer edge of the positioning hole 180.

When the plurality of sliders 200 are lifted by the frame 500, the positioning block 220 and the positioning hole 180 are on the same line when the first contact 521 and the second contact 160 are contacted, and the positioning block 220 can slide into the positioning hole 180.

Further, referring to fig. 1 to 6, in one embodiment, a rotation shaft 190 perpendicular to the extending direction of the positioning hole 180 and an embedded block 181 mounted on the rotation shaft 190 are provided on the inner wall of the positioning hole 180; an embedded groove 221 adapted to the embedded block 181 is formed on the side wall of the positioning block 220; the embedded block 181 can be rotationally switched between a first position and a second position around the axis of the rotating shaft 190, and when the embedded block 181 is positioned at the first position, the embedded block 181 protrudes out of the inner wall of the positioning hole 180 and can be embedded into the embedded groove 221; when the insert 181 is in the second position, the insert 181 is embedded in the inner wall of the positioning hole 180.

When the positioning block 220 enters the positioning hole 180, the embedded block 181 is first kept at the second position, and when the positioning block 220 completely enters the positioning hole 180, the embedded block 181 is rotated to the first position around the rotating shaft 190 and is matched with the embedded groove 221 on the side wall of the positioning block 220, so that the position of the positioning block 220 is unchanged, and therefore, when the electromagnet 150 is not electrified any more, the positioning block 220 can be matched with the positioning hole 180, namely, the plurality of sliding seats 200 can be respectively fixed on the guard ring body 100.

Further, referring to fig. 1 to 6, in one embodiment, the device further includes an elastic member sleeved on the rotating shaft 190 and used for keeping the embedded block 181 at the first position, and a driving mechanism used for driving the embedded block 181 to switch from the first position to the second position.

In the present embodiment, the position of the insert block 181 is changed by the elastic member and the driving mechanism, and the position of the insert block 181 can be automatically changed without changing the position of the insert block 181 by manual driving.

Further, referring to fig. 1 to 6, in one embodiment, the apparatus further includes a frame 500 having a support surface 510; the guard ring body 100 is disc-shaped, the supporting surface 510 is annular, the inner diameter of the supporting surface is larger than the outer diameter of the guard ring body 100, the plurality of sliding seats 200 are respectively supported on the supporting surface 510, and the plurality of sliding seats 200 are annularly arranged at intervals; the carrier 500 further has a third contact 530, and the retainer body 100 is provided with a fourth contact 170 corresponding to the third contact 530; when the third contact 530 is in contact with the fourth contact 170, the drive mechanism drives the insert block 181 to switch from the first position to the second position.

In this embodiment, when the first contact 521 and the second contact 160 contact, the third contact 530 and the fourth contact 170 contact simultaneously, so that the driving mechanism drives the insert block 181 to switch to the second position and maintain the second position; after the positioning block 220 completely enters the positioning hole 180, the frame 500 is away, the electromagnet 150 loses magnetic force, but simultaneously the embedded block 181 is rotated and switched to the first position under the action of the elastic element, and the position of the positioning block 220 is kept still.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The cable guard ring of the wind turbine generator is characterized by comprising a guard ring body and a plurality of sliding seats;

the guard ring body is flat, a through hole which penetrates through the guard ring body and is used for a lifting rope to pass through so as to be fixed on the guard ring body is formed in the middle of the guard ring body, and a plurality of first depressions are formed in the outer edge of the guard ring body at intervals;

the sliding seats are respectively arranged on the outer side of the guard ring body, and the first depressions are in one-to-one correspondence with the sliding seats;

the sliding seats can slide to a preset position along the direction of the sliding seats facing the middle part of the guard ring body respectively, and when each sliding seat slides to the preset position, each sliding seat and the corresponding first recess enclose a through hole for a cable to pass through;

the cable guard ring of the wind turbine generator further comprises a frame body with a supporting surface and a plurality of electromagnets;

the guard ring body is disc-shaped, the supporting surface is annular, the inner diameter of the supporting surface is larger than the outer diameter of the guard ring body, the sliding seats are respectively supported on the supporting surface, and the sliding seats are arranged at intervals in an annular mode;

the frame body is also provided with a power supply contact for connecting with a power supply and a plurality of first contacts respectively electrically connected with the power supply contact;

the electromagnets are in one-to-one correspondence with the first depressions, the electromagnets are respectively arranged on the edges of the corresponding first depressions, the electromagnets are respectively provided with second contacts, and the first contacts and the second contacts are in one-to-one correspondence.

2. The wind turbine cable retainer of claim 1, wherein a mating hole for mating with a hook attached to a tail end of a lifting rope is formed in a side surface of the retainer body;

the inner wall of the through hole is provided with a strip-shaped groove, the strip-shaped groove is arranged along the extending direction of the through hole, one end of the strip-shaped groove is opened and arranged on one side face of the guard ring body, and the other end of the strip-shaped groove is opened and arranged on the other side face of the guard ring body;

under the projection of through-hole extending direction, the cooperation hole with the bar groove is around the axis interval setting of through-hole.

3. The wind turbine cable retainer of claim 2, wherein the number of mating holes is a plurality and the number of bar-shaped grooves is a plurality;

under the projection of the extending direction of the through hole, a plurality of the matching holes and a plurality of the strip-shaped grooves are alternately arranged.

4. A wind turbine cable retainer according to claim 1, wherein the frame comprises a seat provided on an inner side of the support surface, the seat having a predetermined face offset from the support surface; the plurality of first contacts are respectively arranged on the preset surface.

5. The wind turbine cable guard ring of claim 1, wherein a plurality of second recesses are respectively provided on each slide;

the first recesses and the second recesses are in one-to-one correspondence and mutually fit, and each via hole is respectively surrounded by the corresponding first recess and second recess.

6. The wind turbine generator system cable guard ring of claim 1, wherein each slide seat is provided with a positioning block, and the outer edge of the guard ring body is provided with a plurality of positioning holes respectively matched with each positioning block.

7. The wind turbine cable retainer of claim 6, wherein the inner wall of the positioning hole is provided with a rotating shaft perpendicular to the extending direction of the positioning hole and an embedded block arranged on the rotating shaft;

an embedded groove matched with the embedded block is formed in the side wall of the positioning block;

the embedded block can rotate around the axis of the rotating shaft between a first position and a second position, and when the embedded block is positioned at the first position, the embedded block protrudes out of the inner wall of the positioning hole and can be embedded into the embedded groove; when the embedded block is positioned at the second position, the embedded block is embedded on the inner wall of the positioning hole.

8. The wind turbine cable retainer of claim 7, further comprising an elastic member sleeved on the shaft for maintaining the insert in the first position and a driving mechanism for driving the insert to switch from the first position to the second position.

9. The wind turbine cable retainer of claim 8, further comprising a frame having a support surface;

the frame body is also provided with a third contact, and the retainer body is provided with a fourth contact corresponding to the third contact;

the drive mechanism drives the insert block to switch from the first position to the second position when the third contact is in contact with the fourth contact.