CN210343599U

CN210343599U - Anchor cable fixing device for tower and tower

Info

Publication number: CN210343599U
Application number: CN201921359265.5U
Authority: CN
Inventors: 李强; 崔矞飞; 张克
Original assignee: Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
Current assignee: Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-04-17
Anticipated expiration: 2029-08-20

Abstract

The utility model discloses an anchor cable fixing device and a tower for the tower, wherein the anchor cable fixing device comprises a connecting mainboard, a guide sleeve, a box body and a connecting assembly, and the connecting mainboard is used for being connected with a foundation; the guide sleeve is arranged at the upper end of the connecting main board; the box body is arranged on the connecting main board and provided with a closed accommodating cavity, the box body is provided with a first through hole communicated with the guide sleeve, and the lower end of the anchor cable can enter the accommodating cavity through the first through hole; the connecting assembly is used for fixing the lower end of the anchor cable in the box body, corrosion caused by exposure is prevented, damage caused by external force can be avoided, and therefore safety of the anchor cable fixing device can be improved.

Description

Anchor cable fixing device for tower and tower

Technical Field

The utility model belongs to the technical field of wind power generation, especially, relate to an anchor rope fixing device for pylon and pylon including this anchor rope fixing device.

Background

In recent years, the development of wind fields in low wind speed areas in the global wind turbine market becomes one of the key directions for the development of wind power. With the continuous progress of the wind driven generator technology, the unit capacity and the impeller diameter are continuously increased, and the center height of the hub is continuously refreshed. In a low wind speed area with large wind shear, the wind driven generator captures more wind energy by increasing the height of the tower, so that the generating capacity is improved, and the electricity consumption cost is reduced.

When the tower serves as a bearing foundation of the whole wind generating set, the tower is complex and unstable in load, the tower is increased along with the increase of the diameter of the tower in the operation process of the wind generating set, and how to improve the structural strength of the tower without increasing the diameter of the tower is a technical problem to be solved by the technical staff in the field.

At present, in order to increase the structural strength of tower, can set up the anchor rope in the periphery of a tower section of thick bamboo, the upper end and a tower section of thick bamboo fixed connection of anchor rope, the lower extreme of anchor rope can be through earth anchor and ground fixed connection. However, the ground anchor is usually fixed and buried under the ground, which makes the lower end of the anchor line fixed under the ground, and thus it is inconvenient to maintain the anchor line.

Accordingly, it would be desirable to provide a cable bolt securing device.

SUMMERY OF THE UTILITY MODEL

One of the objectives of the present invention is to provide an anchor cable fixing device for a tower and a tower including the anchor cable fixing device, so as to improve the structural strength of the tower.

To the above purpose, the present invention provides the following technical solutions:

according to an aspect of the present invention, there is provided an anchor cable fixing device for a tower, the anchor cable fixing device comprising a connection main board, a guide sleeve, a box body and a connection assembly, the connection main board being used for connecting with a foundation; the guide sleeve is arranged at the upper end of the connecting main board; the box body is arranged on the connecting main board, the box body is provided with a closed accommodating cavity, the box body is provided with a first through hole communicated with the guide sleeve, and the lower end of the anchor cable can enter the accommodating cavity through the first through hole; the connecting assembly is used for fixing the lower end of the anchor cable in the box body.

According to an exemplary embodiment of the present invention, the box body includes a cover plate for making the box body open or close, the box body has an opening, and the cover plate is detachably or pivotably connected to the opening.

Specifically, the connecting assembly comprises a rigging and a support frame for supporting the rigging, the support frame is fixed on the inner wall of the box body, the rigging abuts against the support frame, and the lower end of the anchor cable is locked by the rigging.

More specifically, the box still include with roof that the guide sleeve is connected, the roof perpendicular to connect the mainboard, first through-hole set up in on the roof, the support frame include the loading board with connect in the roof with the connecting plate between the loading board, the loading board perpendicular to connect the mainboard, and with the roof is parallel, be provided with the second through-hole on the loading board, the second through-hole with the first through-hole is aimed at the setting, the rigging supports and leans on deviating from of loading board one side of roof.

Furthermore, the number of the connecting plates is two, the connecting plates are respectively located on two sides of the first through hole in the width direction of the box body, and an operation space for enabling the lower end of the anchor cable to penetrate into the second through hole is formed among the first through hole, the second through hole and the two connecting plates.

According to another exemplary embodiment of the present invention, the anchor cable fixing device further comprises a sealing structure disposed at the upper end of the guide sleeve for sealing the joint of the guide sleeve and the anchor cable.

Specifically, the sealing structure comprises a sealing block, the sealing block comprises a first sealing element and a second sealing element which are butted along the circumferential direction of the guide sleeve, two side walls of the first sealing element, which are connected with the second sealing element, are respectively provided with a first groove and a first bulge, two side walls of the second sealing element, which are connected with the first sealing element, are respectively provided with a second bulge and a second groove, and when the first sealing element is butted with the second sealing element, the first bulge and the first groove are respectively matched with the second groove and the second bulge; the sealing structure further comprises a hoop sleeved on the periphery of the sealing block.

According to the utility model discloses a bottom base that the lower extreme of connecting the mainboard has and is used for being connected with ground detachable, it is provided with and is used for the embedding to connect the mainboard the logical groove of box, it certainly to lead to the top orientation of connecting the mainboard the bottom base extends, the box set up in lead to the inslot.

Specifically, the periphery of guide sleeve still is provided with the reinforcing plate and connects in the reinforcing plate with the strengthening rib between the guide sleeve, the reinforcing plate with guide sleeve's extending direction is perpendicular to be fixed in connect the upper end of mainboard.

According to the utility model discloses an on the other hand provides a pylon, the pylon include a tower section of thick bamboo, set up in the anchor rope of a tower section of thick bamboo periphery and the utility model provides an anchor rope fixing device, the upper end fixed connection of anchor rope in a tower section of thick bamboo, the lower extreme of anchor rope passes through anchor rope fixing device connects on the ground.

The utility model provides an anchor rope fixing device and pylon for pylon has following beneficial effect at least: the utility model provides an anchor rope fixing device for pylon holds the lower extreme of anchor rope in wherein confined box including, has held coupling assembling in this box, and on the lower extreme of anchor rope was fixed in this coupling assembling, prevented because expose and the corruption that causes, also can avoid the damage that external force caused to can improve anchor rope fixing device's security. Furthermore, the anchor cable fixing device is detachably connected to the foundation, so that the anchor cable fixing device is convenient to mount and maintain, and the production and maintenance efficiency can be improved.

Drawings

The above and/or other objects and advantages of the present invention will become more apparent from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

fig. 1 is a structural diagram of a tower according to an embodiment of the present invention.

Fig. 2 is a block diagram of the cable bolt fixing means of fig. 1 attached to the lower end of a cable bolt.

Fig. 3 is a view of the anchor cable fixing device of fig. 2 with the cover plate removed.

Fig. 4 is an enlarged view of a portion of the cable bolt securing device of fig. 3, particularly illustrating the attachment assembly.

Fig. 5 is a structural view of the supporting stand in fig. 4.

Fig. 6 is an enlarged view of a portion of the cable bolt securing device of fig. 2, particularly illustrating the guide sleeve and sealing structure.

Fig. 7 is a block diagram of a seal block used to form the seal structure of fig. 6.

Fig. 8 is a structural view of the clip of fig. 6.

Description of reference numerals:

100. an anchor cable; 200. An anchor cable fixing device;

300. a tower drum; 210. Connecting the main board;

220. a box body; 230. A bottom base;

231. mounting holes; 240. A sealing block;

241. a first protrusion; 242. A first groove;

250. a guide sleeve; 260. Clamping a hoop;

221. a cover plate; 222. A side plate;

223. reinforcing rib plates; 400. A rigging;

500. a support frame; 224. A first through hole;

501. a second through hole; 502. A carrier plate;

503. a connecting plate; 251. A reinforcing plate;

252. reinforcing ribs; 225. A top plate;

226. a base plate.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

Referring to fig. 1, according to an aspect of the present invention, a tower is provided, which includes a tower tube 300 and a plurality of anchor cables 100 disposed at the periphery of the tower tube 300, wherein the anchor cables 100 can be used to improve the lateral force bearing capability of the tower tube 300. In order to improve the wind energy utilization rate in the low wind speed area, the tower tube 300 can be arranged higher, so that the stress condition of the tower tube 300 is more complicated, and the anchor cable 100 is arranged on the periphery of the tower tube 300, so that the stability of the tower tube 300 can be improved, and the safety of the tower is improved.

Specifically, a plurality of anchor cables 100 may be uniformly distributed around the tower 300, the upper ends of the anchor cables may be connected to the tower 300, and the lower ends of the anchor cables 100 may be connected to a foundation embedded in the ground through anchor cable fixing devices 200. In use, cable fixation device 200 may include an angle between cable 100 and a horizontal plane to provide a component of force in a horizontal direction, wherein the angle may be 30 ° to 55 °, and more preferably, the angle may be 35 °, 40 °, 45 °, 50 °.

Specifically, the upper end of anchor line 100 may be fixed to tower tube 300, the lower end of anchor line 100 may be connected to anchor line fixture 200, and the lower end of anchor line fixture 200 may be fixed to the ground, thereby fixing the lower end of anchor line 100.

Referring to fig. 2 to 4 and 6, in particular, the cable bolt fixing device 200 may include a connection main plate 210, a bottom base 230 at a lower end of the connection main plate 210, and a guide sleeve 250 at an upper end of the connection main plate 210.

The bottom base 230 is configured to be removably attached to a foundation. For example, the bottom base 230 may be provided with a plurality of mounting holes 231 for mounting fasteners, and the plurality of mounting holes 231 may be uniformly distributed on the bottom base 230 to uniformly apply force. Further, the mounting hole 231 may be a through hole or a screw hole. To improve the structural strength of the cable bolt fixing device 200, a reinforcing rib plate 223 may be disposed between the bottom base 230 and the connection main plate 210. Because the anchor cable fixing device 200 and the foundation are independently formed, namely, the anchor cable fixing device 200 and the foundation can be manufactured simultaneously, the manufacturing period is shortened, the field assembly is facilitated, and the assembly efficiency is improved.

Further, the anchor cable fixing device 200 may further include a box 220 disposed on the connection main board 210, wherein the box 220 may have a receiving cavity for receiving the lower end of the anchor cable 100, and a connection assembly for connecting the lower end of the anchor cable 100 is disposed in the box 220, and the box 220 may seal the connection assembly in the receiving cavity to prevent exposure, prevent dust, rain water and the like from corroding the connection assembly, prevent the connection assembly from being damaged by external force, and thus improve the safety of the connection assembly. On the other hand, the anti-theft device also plays a role in preventing the connecting component from being stolen.

With continued reference to fig. 2 and 3, the housing 220 may include a cover 221 for opening or closing the housing 220, so that the receiving cavity may be in communication with the outside as needed, to facilitate installation of the connection assembly for securing the lower end of the anchor line, and to facilitate subsequent maintenance of the connection assembly.

Further, with continued reference to fig. 2, 3 and 4, the box 220 may further include a top plate 225 connected to the guiding sleeve 250, the top plate 225 is perpendicular to the connecting main plate 210, a first through hole 224 is opened on the top plate 225, the guiding sleeve 250 may communicate with the accommodating cavity of the box 220 through the first through hole 224, and the lower end of the anchor cable 100 may enter the accommodating cavity after passing through the guiding sleeve 250 and the first through hole 224. According to an exemplary embodiment of the present invention, the box 220 can be a hexahedral structure, and can also be a cylindrical structure, and certainly, other shapes can be set as required, for example, a polygonal cylinder structure, all within the protection scope of the present invention, the present invention will be described by taking the box 220 as a hexahedral structure as an example. Box 220 may further include a bottom plate 226 opposite to and parallel to top plate 225, and bottom plate 226 may have a predetermined interval from top plate 225 to form a receiving cavity between bottom plate 226 and top plate 225 for receiving anchor cable 100.

Referring to fig. 4 and 5, the connection assembly provided in case 220 may include a support bracket 500 and a rigging 400 for fixing the lower end of anchor line 100 and tensioning anchor line 100. The supporting frame 500 includes a bearing plate 502 and a connecting plate 503 connected between the top plate 225 and the bearing plate 502, the bearing plate 502 is perpendicular to the connecting main board 210 and parallel to the top plate 225, a second through hole 501 is provided on the bearing plate 502, the second through hole 501 is aligned with the first through hole 224, and the rigging 400 abuts against one side of the bearing plate 502 departing from the top plate. The two connecting plates 503 may be located on two sides of the first through hole 224 in the width direction of the box 220, and an operation space for inserting the lower end of the anchor cable 100 into the second through hole 501 is formed between the first through hole 224, the second through hole 501 and the two connecting plates 503.

The rigging 400 may have a plurality of cable fixing holes, and the lower end of the anchor cable 100 may be split into a plurality of strands according to installation requirements, and each strand may be threaded into one cable fixing hole and fixed, so that the lower end of the entire anchor cable 100 is fixed to the rigging 400. Furthermore, a clamping piece which is in an inverted cone shape and used for clamping the lower end of the anchor cable is arranged in each cable fixing hole, so that the lower end of the anchor cable is prevented from moving upwards.

More specifically, the loading plate 502 may be parallel to the top plate 225 of the case 220, and the first through hole 224 and the second through hole 501 may extend perpendicular to the direction of the loading plate 502. One or more than two connecting plates 503 may be provided as required.

The case 220 may be formed by mounting side plates 222, a top plate 225, and a bottom plate 226, and a cover plate 221 on the connection main plate 210 such that the connection main plate 210 itself also serves as one surface of the case 220. However, the housing 220 may be pre-assembled to form a closed accommodating chamber. In this case, the case 220 may be directly mounted to the connection main board 210.

In addition, after the box 220 is manufactured in advance, through grooves penetrating through two sides of the connecting main board 210 may be formed in the connecting main board 210, the through grooves extend from the top end of the connecting main board 210 toward the bottom base 230, and the box 220 may be embedded in and fixed in the through grooves. The through slots may be sized and shaped to fit within the housing 220.

With continued reference to fig. 2 and 3, the box 220 may include a top plate 225 and a bottom plate 226 parallel to each other, a side plate 222 connected between the top plate 225 and the bottom plate 226, and a cover plate 221, wherein the receiving cavity surrounded by the top plate 225, the bottom plate 226, and the side plate 222 may have an opening, and the cover plate 221 may cover the opening to close the receiving cavity. The side plates 222, the top plate 225, and the bottom plate 226 are perpendicular to the connection main plate 220, respectively. The cover 221 may be parallel to the connection main plate 210, the cover 221 may be configured to be detachably connected to the side plate 222 by a fastener, and preferably, the cover 221 is configured to be pivotally connected to the side plate 222 by a pin so as to be conveniently opened as needed. An exemplary embodiment of the present invention may also be configured as a cover plate that can be movably opened at the other side opposite to the cover plate 221, so that the box 220 can be opened from both sides through two cover plates.

Referring to fig. 6 to 8, further, in order to prevent rainwater or dust from entering into the case 220 through the guide sleeve 250, the cable bolt fixing device 200 may further include a sealing structure, which may be provided at the junction of the guide sleeve 250 and the cable bolt 100, thereby improving the lifespan of the cable bolt fixing device 200. Specifically, the sealing structure may be formed of a corrosion-resistant rubber material, and the sealing structure may be located at the upper end of the guide sleeve 250. The sealing structure includes a sealing block 240 and a band 260 fitted around the sealing block 240.

Specifically, sealing block 240 surrounds the top end of guide sleeve 250 and the outer circumference of cable bolt 100 to seal the gap between guide sleeve 250 and cable bolt 100. Along the circumferential direction of the guide sleeve 250, the sealing block 240 may be divided into two arc-shaped abutting blocks, in other words, the sealing block 240 may include a first sealing member and a second sealing member, a first groove 242 and a first protrusion 241 are respectively provided on two sidewalls of the first sealing member connected to the second sealing member, a second protrusion (not shown) and a second groove (not shown) are respectively formed on two sidewalls of the second sealing member connected to the first sealing member, and when the first sealing member abuts against the second sealing member, the first protrusion 241 and the first groove 242 of the first sealing member may respectively cooperate with the second groove and the second protrusion of the second sealing member, so that the sealing block 240 may have better versatility. Preferably, the first and second seals may be symmetrically disposed with respect to the axial direction of the guide sleeve 250 to facilitate the abutting engagement of the protrusion and the groove. It is understood that the seal block 240 may include at least one first seal and at least one second seal.

Further, the inner surface of the sealing structure may closely conform to the junction of anchor cable 100 and guide sleeve 250. Specifically, the inner surface of the sealing block 240 has a stepped structure, so that the sealing block 240 has a cavity having a stepped shaft shape along the central axis direction of the guide sleeve 250, that is, the sealing block 240 has two inner diameters that are different from each other, so that the inner surface of the sealing block 240 has a stepped inner diameter, a part of which is engaged with the outer circumference of the guide sleeve 250, and a part of which is engaged with the outer circumference of the anchor cable 100.

To further improve the connection stability of the sealing structure, the sealing structure further includes a clip 260 disposed at the outer periphery of the sealing block 240, and the clip 260 may be formed of a stainless steel material. During installation, the sealing block 240 can be assembled into a whole structure through the matching of the protrusion 241 and the groove 242 on the end face, and then the clamp 260 is clamped at the upper end and the lower end of the sealing block 240, so that the upper end of the sealing block 240 can be fixed on the anchor cable, and the lower end of the sealing block 240 is fixed on the guide sleeve 250, so that the sealing between the anchor cable and the anchor cable fixing device 200 is realized, and rainwater, dust and the like are prevented from entering the anchor cable fixing device 200 along the anchor cable.

Further, in order to further improve the structural strength of the guide sleeve 250, the outer circumference of the guide sleeve 250 is further provided with a reinforcing plate 251 and a reinforcing rib 252 connected between the reinforcing plate 251 and the guide sleeve 250, and the reinforcing plate 251 is perpendicular to the extending direction of the guide sleeve 250 and is perpendicularly fixed to the upper end of the connection main plate 210. Referring to fig. 2 and 3, one side, e.g., the lower side, of the reinforcing plate 251 may be fixed to the top end of the connection main plate 210, and a plurality of reinforcing ribs 252 may be uniformly distributed on the outer circumference of the guide sleeve 250 and connected between the guide sleeve 250 and the reinforcing plate 251.

The utility model provides an anchor rope fixing device 200 for pylon is located the ground top, just also makes the lower extreme of the anchor rope 100 who is connected with it be located the ground top, is convenient for follow-up maintenance. Further, the anchor cable fixing device 200 for a tower includes a closed box 220 capable of receiving the lower end of the anchor cable 100 therein, the box 220 receiving therein a connection assembly to which the lower end of the anchor cable 100 is fixed, the anchor cable fixing device 200 being capable of protecting the anchor cable 100 to prevent corrosion of the connection assembly due to exposure, and also preventing damage due to external force, thereby improving safety of the anchor cable fixing device 220. Furthermore, the anchor cable fixing device 220 is detachably connected to the ground, so that the anchor cable fixing device is convenient to install and maintain, and the production and maintenance efficiency can be improved.

The described features, structures, or characteristics of the invention may be combined in any suitable manner in one or more embodiments. In the description above, numerous specific details are provided to give a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention.

Claims

1. A cable bolt fixing device for a tower, comprising:

a connection main board (210) for connecting with a foundation;

a guide sleeve (250) provided at an upper end of the connection main plate (210);

the box body (220) is arranged on the connecting main board (210), the box body (220) is provided with a closed accommodating cavity, the box body (220) is provided with a first through hole (224) communicated with the guide sleeve (250), and the lower end of the anchor cable (100) can enter the accommodating cavity through the first through hole (224);

the connecting assembly is positioned in the accommodating cavity of the box body (220) and is used for fixing the lower end of the anchor cable (100) in the box body (220).

2. Anchor line fixing device for towers according to claim 1, wherein said box (220) comprises a cover plate (221) for opening or closing said box (220), said box (220) having an opening, said cover plate (221) being removably or pivotably connected to said opening.

3. Anchor line fixing device for towers according to claim 2, characterised in that said connection assembly comprises a rigging (400) and a support bracket (500) for supporting said rigging (400), said support bracket (500) being fixed on the inner wall of said box (220), said rigging (400) resting on said support bracket (500), the lower end of said anchor line (100) being locked by said rigging (400).

4. Anchor cable fixing device for a tower according to claim 3, wherein said box (220) further comprises a top plate (225) connected to said guiding sleeve (250), said top plate (225) is perpendicular to said connecting main plate (210), said first through hole (224) opens on said top plate (225), said supporting frame (500) comprises a bearing plate (502) and a connecting plate (503) connected between said top plate (225) and said bearing plate (502), said bearing plate (502) is perpendicular to said connecting main plate (210) and parallel to said top plate (225), said bearing plate (502) is provided with a second through hole (501), said second through hole (501) is aligned with said first through hole (224), and said rigging (400) abuts against a side of said bearing plate (502) facing away from said top plate (225).

5. The anchor cable fixing device for a tower according to claim 4, wherein the connecting plates are two, are respectively located at both sides of the first through hole (224) in the width direction of the box, and an operating space for passing the lower end of the anchor cable (100) into the second through hole (501) is formed between the first through hole (224), the second through hole (501) and the two connecting plates.

6. Anchor cable fixation for a tower according to any one of the claims 1-5, wherein the anchor cable fixation (200) for a tower further comprises a sealing structure provided at the upper end of the guide sleeve (250) for sealing the joint of the guide sleeve (250) and the anchor cable (100).

7. The anchor cable fixing device for a tower according to claim 6, wherein the sealing structure comprises a sealing block (240), the sealing block (240) comprises a first sealing element and a second sealing element which are butted along a circumferential direction of the guide sleeve (250), two side walls of the first sealing element connected with the second sealing element are respectively provided with a first groove (242) and a first projection (241), two side walls of the second sealing element connected with the first sealing element are respectively provided with a second projection and a second groove, and when the first sealing element is butted with the second sealing element, the first projection (241) and the first groove (242) are respectively matched with the second groove and the second projection; the sealing structure further comprises a hoop (260) sleeved on the periphery of the sealing block (240).

8. Anchor cable fixation device for towers according to claim 1, wherein the lower end of the connection main plate (210) has a bottom foundation (230) for detachable connection to the foundation,

the connecting main board (210) is provided with a through groove for embedding the box body, the through groove extends from the top end of the connecting main board (210) towards the bottom base (230), and the box body (220) is arranged in the through groove.

9. Anchor cable fixing device for tower according to any of claims 1-5, 8, characterized in that the guide sleeve (250) is further provided at its periphery with a reinforcement plate (251) and a reinforcement rib connected between the reinforcement plate (251) and the guide sleeve (250), the reinforcement plate (251) being perpendicular to the extension direction of the guide sleeve (250) and being fixed perpendicularly to the upper end of the connecting main plate (210).

10. A tower, characterized in that it comprises a tower drum (300), anchor lines (100) arranged at the periphery of the tower drum, and anchor line fixing devices for a tower according to any one of claims 1-9, wherein the upper ends of the anchor lines (100) are fixedly connected to the tower drum, and the lower ends of the anchor lines (100) are connected to the ground through the anchor line fixing devices for a tower.