Wind power tower anchoring assembly, anchoring foundation and manufacturing and using method thereof

Abstract

The invention relates to a wind power tower anchoring assembly, a wind power tower anchoring foundation and a manufacturing and using method thereof, the wind power tower anchoring assembly comprises an upper anchor plate, a lower anchor plate, a sleeve, a protective cage and an anchoring part, the anchoring foundation is formed by matching a gravity bearing platform and the wind power tower anchoring assembly, and the upper anchor plate and the lower anchor plate are arranged at the top and the bottom of the gravity bearing platform for bearing a wind power tower respectively; the sleeves are arranged on the upper portion of the lower anchor plate and connected with and support the upper anchor plate, the protection cage is embedded in the gravity bearing platform and combined with the gravity bearing platform to protect the sleeves, anchor cables in the anchoring parts are flexible columnar steel nooses and can penetrate into or be pulled out of the sleeves, one ends of the anchor cables are fixed to the bottom of the lower anchor plate through anchor heads, and the other ends of the anchor cables are fixed to the lower portion of the lower anchor plate. The other end of the anchor cable penetrates out of the upper anchor plate and then is connected with a flange plate at the bottom of the tower so that the tower can be anchored to the gravity bearing platform. The flexible characteristic of the anchor cable is utilized, meanwhile, the defects of the existing application technology are overcome, the structure is simplified, the cost is saved, the manufacturing efficiency can be improved, and maintenance and updating are convenient.

Description

Technical Field

[0001] The present invention relates to an anchoring assembly and an anchoring foundation and methods for making and using the same, and in particular to a tower anchoring assembly and an anchoring foundation of a wind turbine and methods for making and using the same, belonging to the technical field of methods for making and using the tower anchoring assembly and the anchoring foundation of a wind turbine. Background Art

[0002] Wind turbines are mechatronic devices that convert wind energy into electrical energy. The power generation process is environmentally friendly, green and renewable.

[0003] Wind power generation usually requires a generator set, a tower and wind blades. The tower is anchored on the foundation to support the generator set. The wind blades are installed on the shaft of the generator set to receive the kinetic energy of the wind to rotate. The rotating wind blades drive the rotor of the generator set to rotate, thereby generating current.

[0004] Since the rotation of the wind blades will generate huge torque, and the weight of the generator set, wind blades, tower, etc. will eventually be concentrated on the anchor foundation of the tower, therefore, wind power generation not only requires a solid and stable foundation entity, but also requires a set of anchoring components that meet the requirements and cooperate with the foundation entity to form the anchor foundation of the wind turbine tower, thereby providing protection for the operation of the wind turbine generator set.

[0005] The wind turbine tower anchoring assembly in the prior art mainly includes an upper anchor plate, a lower anchor plate and anchor bolts, etc. The anchor bolts are rigid structural parts, usually steel columns, and the anchor bolts are connected between the upper anchor plate and the lower anchor plate through nuts to form an anchor cage structure; the foundation entity used for anchoring the wind turbine tower is usually a gravity pedestal made of reinforced concrete. During the construction of the gravity bearing platform, the anchor cage structure is preset between the steel skeleton of the gravity bearing platform, and then poured with concrete to make it an integrated wind turbine tower anchor foundation, for example: utility model patent "Tower foundation anchor assembly and tower foundation" (application number: 201720883238.2), "Anchor bolt foundation of wind turbine" (application number 201320446319.8), "A ground anchor cage foundation easy to replace and repair" (application number: 201720144772.1), "A replaceable prestressed anchor mechanism" (application number: 201720144775.5) and "A wind turbine foundation and replaceable anchor cage" (application number: 202223308688.9), etc.

[0006] Although rigid anchor bolts have good strength and can generate the stress required for anchoring the wind turbine tower, rigid anchor bolts have shortcomings during the installation process, such as described in the background technology of the utility model patent "Foundation structure of wind turbine generator set and wind turbine generator set" (application number: 201922062457.6) in its specification: Since the anchor bolt is a rigid structure, when installing the upper anchor plate of the anchor bolt foundation, the upper anchor plate of the anchor bolt foundation can be supported on the anchor bolt through the upper and lower nuts, but each anchor bolt of the existing anchor bolt foundation is a rigid structure. When it is inserted into the upper and lower anchor plates, it is not easy to align with the mounting holes on the upper and lower anchor plates, which affects the installation efficiency. Therefore, the patent proposes a technical solution of providing tension to the tower by replacing the rigid anchor bolt with a flexible anchor cable.

[0007] Not only that, rigid anchor bolts also have shortcomings during the replacement process. For example, the invention patent application "Anchoring assembly based on wind turbine foundation fixation and its fixing method" (application number: 202310292644.1) pointed out in the background technology of its specification: When the anchor rod (i.e., the rigid anchor bolt) has quality problems, due to the long structure of the anchor rod and the relatively narrow space between the tower and the wind turbine foundation for replacing the anchor rod, the replacement of the anchor rod will be more troublesome, and for the anchor rod affected by the platform and tower door frame inside the tower, it may be impossible to replace it; for this reason, the patent application also proposed an improved technical solution of using flexible anchor cables instead of rigid anchor bolts.

[0008] However, it is found in practice that although the flexible anchor cable can overcome the shortcomings of the rigid anchor bolt during its installation or maintenance and replacement, the existing technical solution of using the flexible anchor cable to replace the rigid anchor bolt still has certain shortcomings during its installation and maintenance and replacement, which are specifically manifested as follows:

[0009] First, the installation is inconvenient. Since the anchor cable is flexible, it cannot be used as a supporting member to support, fix and level the upper anchor plate when constructing the anchor cage. Therefore, a temporary rigid supporting member must be used to temporarily support, fix and level the upper anchor plate. After the gravity cap is poured, the temporary rigid supporting member loses its use value, which wastes materials and increases costs. If it is removed, it will be time-consuming and labor-intensive, and the loss will outweigh the gain. In addition, the gravity cap may be damaged during the removal process, thereby affecting its strength.

[0010] Secondly, replacement is inconvenient. As the anchor of the tower, whether it is anchor bolts or anchor cables, the post-tensioning method is generally used to give stress to the anchor bolts or anchor cables. Therefore, the pre-buried anchor cables are usually tightly connected to the concrete of the gravity foundation. Although, in order to prevent the anchor cables from bonding with the concrete, PE (polyethylene plastic) sleeves are usually placed on the anchor cables. However, due to the vibration of concrete and other processes during the production and construction process, the anchor cables are not arranged in an ideal straight line shape in the gravity foundation. In addition, because the concrete is in a fluid form before it generates strength, it will exert a certain pressure on the outer wall of the PE sleeve, so that the PE sleeve and the anchor cable are in a state of close fit, which makes it more difficult to replace the anchor cable. Sometimes it is necessary to expand the hole to complete the installation of the new anchor cable, which consumes a lot of manpower and material resources. Summary of the invention

[0011] In order to overcome the deficiencies of the prior art, the present invention specifically provides a wind power tower anchoring assembly and anchoring foundation and a method for making and using the same, so as to obtain the flexible characteristics of the anchor cable and overcome the inconvenience of installation and replacement caused by the inability of rigid anchor bolts to bend, while further facilitating its installation and use as well as subsequent updating and maintenance, simplifying the structure, saving materials, facilitating manufacture and use and maintenance, and providing a new type of innovative anchoring assembly and anchoring foundation for the anchoring of the tower of the wind turbine, thereby contributing to the development of wind power generation.

[0012] To this end, the present invention first provides a wind power tower anchor assembly, which is used for anchoring a tower of a wind turbine generator on its gravity support platform, comprising:

[0013] Upper anchor plate, lower anchor plate, casing, protective cage and anchors;

[0014] The upper anchor plate is used to be placed on the top of the gravity pedestal, and the lower anchor plate is used to be placed on the bottom of the gravity pedestal. The upper anchor plate and the lower anchor plate are also respectively provided with a plurality of upper plate anchor holes and lower plate anchor holes distributed in a circular ring shape, wherein the upper plate anchor holes include upper plate inner ring anchor holes and upper plate outer ring anchor holes, and the lower plate anchor holes include lower plate inner ring anchor holes and lower plate outer ring anchor holes, the upper plate inner ring anchor holes are used to connect with the holes on the inner flange of the tower barrel of the tower, and the upper plate outer ring anchor holes are used to connect with the holes on the outer flange of the tower barrel of the tower, and each of the upper plate inner ring anchor holes and the upper plate outer ring anchor holes are also respectively vertically corresponding to the lower plate inner ring anchor holes and the lower plate outer ring anchor holes one by one;

[0015] A plurality of sleeves are arranged on the upper part of the lower anchor plate and connected to support the upper anchor plate, and the upper and lower ports of each sleeve are respectively connected to an upper plate anchor hole of the upper anchor plate and a corresponding lower plate anchor hole;

[0016] The protection cage is composed of annular steel bars surrounding the outer circumference of the casing and longitudinal steel bars connected to the annular steel bars to form a cage-like structure. The protection cage is used to be buried inside the gravity support and combined with the gravity support to protect the casing;

[0017] The anchoring device comprises an anchor cable and an anchor head, wherein the anchor cable is a flexible columnar steel cable formed by twisting a plurality of columnar steel wires, and the anchor cable can pass through the upper plate anchor hole or the lower plate anchor hole and penetrate into the corresponding casing or be pulled out from the casing. When the plurality of anchor cables respectively penetrate into the interior of each casing and the two ends thereof respectively penetrate out from the upper plate anchor hole and the lower plate anchor hole, the end of the anchor cable passing through the lower plate anchor hole can be fixed to the bottom of the lower anchor plate by the anchor head, and the end of the anchor cable passing through the upper plate anchor hole can be further passed through the hole on the flange at the bottom of the tower frame erected on the upper part of the upper anchor plate and fixed to the upper part of the flange with the anchor head after force tensioning, thereby anchoring the tower frame to the gravity bearing platform.

[0018] Further:

[0019] The wind power tower anchor assembly, wherein the upper anchor plate and / or the lower anchor plate are further provided with a stress regulator;

[0020] The stress adjuster includes a high-strength hollow bolt with an external thread and a high-strength nut with an internal thread. The high-strength hollow bolt is fixed to the upper plate anchor hole and / or the lower plate anchor hole and allows the anchor cable to pass through. The high-strength nut is screwed onto the high-strength hollow bolt and is used to fit with the anchor head. By rotating the high-strength nut, the anchor head can be pushed or the anchor cable can be retracted to fine-tune the stress of the anchor cable.

[0021] Further:

[0022] The wind power tower anchoring assembly further includes a reinforcing pad;

[0023] The reinforcing pad is used to be laid or embedded on the top surface of the gravity bearing platform to enhance the supporting strength of the top surface of the gravity bearing platform to the upper anchor plate.

[0024] Optionally, the reinforced pad is formed by pouring a steel reinforcement frame and high-strength cement slurry.

[0025] Optionally, the sleeve includes a main body pipe and a port piece made of a hard rigid material, and the port piece is arranged on at least one port of the main body pipe for adjusting the overall length of the sleeve.

[0026] Optionally, one end of the port piece is connected to the upper plate anchor hole and / or the lower plate anchor hole through its external thread, and the other end of the port piece is arranged to have a conical structure and is provided with a longitudinal slit so that it can be inserted into the main pipe fitting and can move forward and backward and extend and retract at the port of the main pipe fitting under the action of external force, thereby adjusting the overall length of the sleeve.

[0027] Optionally, the main pipe is a steel pipe, and the side wall of the steel pipe serves as a longitudinal reinforcement and is connected to the annular reinforcement arranged on the periphery of the steel pipe to form the protective cage.

[0028] Further:

[0029] The wind power tower anchoring assembly further includes an auxiliary supporting member;

[0030] The auxiliary support member includes a bottom plate and a support rod, wherein the bottom plate is arranged below the lower anchor plate, and the support rod is arranged between the bottom plate and the lower anchor plate to connect and support the lower anchor plate and adjust the height of the lower anchor plate.

[0031] Furthermore, the present invention also provides a wind power tower anchoring foundation, which is used for anchoring the tower of a wind turbine generator, and its technical solution is as follows:

[0032] It is composed of a gravity bearing platform and the above-mentioned wind power tower anchoring assembly, wherein:

[0033] The gravity cap is cast by reinforced concrete, and has an operating space for anchoring the anchor cable below the lower anchor plate, or has an operating space for anchoring the anchor cable below the lower anchor plate formed by combining with the cap bottom shell;

[0034] The upper anchor plate is arranged on the top of the gravity support platform, the lower anchor plate is arranged on the bottom of the gravity support platform, the casing is arranged between the upper anchor plate and the lower anchor plate, the protective cage is arranged on the outside of the casing and buried in the concrete of the gravity support platform and connected with the steel bars inside the gravity support platform, the anchor cable is inserted into the casing and anchors the tower frame to the gravity support platform through the flange at its bottom through the anchor head at its end, and the anchor cable can also be pulled out of the casing for replacement and re-anchor the tower frame to the gravity support platform through the flange at its bottom through the anchor head.

[0035] Further:

[0036] The present invention also provides a method for making and using the above-mentioned wind power tower anchor foundation, comprising the following steps:

[0037] Excavating an installation pit for an anchor foundation at the installation site of the wind turbine generator, and then pouring concrete in the installation pit to form a cap bottom shell;

[0038] The wind turbine tower anchor foundation is manufactured inside the base shell of the foundation, or the wind turbine tower anchor foundation is manufactured at other places and then hoisted into the base shell of the foundation, wherein the specific manufacturing steps of the wind turbine tower anchor foundation include:

[0039] The lower anchor plate is placed in the bottom shell of the platform or other manufacturing places and is leveled, wherein the placement and leveling of the lower anchor plate can be assisted by an auxiliary support member composed of a bottom plate and a support rod connected to the bottom plate;

[0040] Installing a casing on the lower anchor plate and placing an upper anchor plate on top of the casing and leveling the upper anchor plate;

[0041] Tie steel bars around the outer periphery of the casing to form a protective cage, tie cap steel bars around the outer periphery of the protective cage and between the upper anchor plate and the lower anchor plate and connect them to the protective cage to form a whole;

[0042] A forming template of the gravity cap is set up around the cap reinforcement and between the upper anchor plate and the lower anchor plate, wherein the gravity cap structure constructed by the forming template includes an operating space for anchoring the end of the anchor cable at the bottom of the lower anchor plate, or has an operating space for anchoring the anchor cable below the lower anchor plate after being combined with the cap bottom shell;

[0043] After pouring concrete in the gravity bearing platform forming template and waiting for it to solidify and produce corresponding strength, the installation foundation pit is backfilled with topsoil so that only the upper anchor plate and the part above the anchor plate of the wind turbine tower anchor foundation are exposed, and the production of the wind turbine tower anchor foundation is completed; or

[0044] Concrete is poured into the gravity bearing platform forming template and a part of the space at the bottom of the upper anchor plate is reserved while pouring the concrete. After the concrete solidifies and produces corresponding strength, high-strength cement slurry is injected into the part of the space reserved at the bottom of the upper anchor plate to form a reinforcement pad. Then, the installation foundation pit is backfilled with topsoil so that only the upper anchor plate and the part above the anchor plate of the wind turbine tower anchor foundation are exposed, thus completing the production of the wind turbine tower anchor foundation;

[0045] Inserting the anchor cable into the casing or inserting the anchor cable into the casing after the protective cage is constructed and letting the ends of the anchor cable pass through the upper anchor plate and the lower anchor plate respectively;

[0046] Fixing one end of the anchor cable to the bottom of the lower anchor plate with an anchor head through the operating space;

[0047] The tower of the wind turbine generator is placed on the upper anchor plate through the flange at the bottom thereof and the other end of the anchor cable is passed through the hole on the flange. Then the anchor cable is tensioned and when the stress of the anchor cable meets the requirements, the anchor cable is anchored with an anchor head, thus realizing the use of the anchor foundation of the wind turbine tower;

[0048] When the anchor cable needs to be replaced, the anchor head at the bottom of the lower anchor plate is first removed, and then the anchor cable is pulled out of the sleeve from above the flange by external force. After the anchor cable is replaced, it is inserted into the sleeve from the hole of the flange, and one end of the anchor cable passing through the lower anchor plate is fixed with the anchor head, and then the anchor cable end on the upper part of the flange is tensioned to reach the specified stress and then anchored with the anchor head, so that the anchor foundation of the wind power tower can be reused;

[0049] If the upper anchor plate and / or the lower anchor plate with a stress adjuster is used on the anchor foundation of the wind power tower, the stress of the anchor cable can be finely adjusted by the stress adjuster during use.

[0050] Compared with the prior art, the present invention has outstanding beneficial effects and significant improvements in that:

[0051] 1) The wind power tower anchoring assembly provided by the present invention comprises upper and lower anchor plates, sleeves, a protective cage and an anchor, wherein the upper anchor plate is used to be placed on the top of the gravity bearing platform supporting the wind power tower, the lower anchor plate is used to be placed on the bottom of the gravity bearing platform, a plurality of sleeves are arranged on the upper part of the lower anchor plate and connected to support the upper anchor plate, the protective cage is used to be buried inside the gravity bearing platform and combined with the gravity bearing platform to protect the sleeve, the anchor cable in the anchor is a flexible columnar steel cable, which can be inserted into or pulled out of the sleeve, one end of the anchor cable is fixed to the bottom of the lower anchor plate through an anchor head, and the other end of the anchor cable can be connected to the flange at the bottom of the tower after passing through the upper anchor plate and fixed to the flange with the anchor head after being tensioned, so as to conveniently and quickly anchor the tower to the gravity bearing platform;

[0052] 2) It can be seen that the present invention not only obtains the benefits that can be brought by the flexible anchor cable as an important component of the wind power tower anchor assembly, but also overcomes the shortcomings of the prior art in using the anchor cable as the wind power tower anchor. That is, the flexible anchor cable can not only be conveniently inserted into the holes of the upper and lower anchor plates and the sleeves and the tower flange, which provides convenience for the installation of the wind power tower anchor assembly and the anchoring of the wind power tower, but also can be conveniently pulled out or reinserted from the gravity bearing platform and taken out or sent into the tower barrel of the tower, so that the installation and update maintenance of the anchor is no longer subject to the limitations of the tower structure, which provides convenience for the installation or replacement and maintenance of the anchor.

[0053] Moreover, the present invention has made new development and application of the role of the sleeve, that is, the sleeve is not only used as an isolation device to prevent adhesion between the anchor cable and the gravity bearing platform concrete, but also the role of the sleeve is further expanded to a protective component of the anchor cable and a channel for inserting and removing the anchor cable. For example, by injecting anti-corrosion grease such as butter into the sleeve, it can not only protect the anchor cable, but also facilitate the extraction of the old anchor cable and the insertion of the new anchor cable.

[0054] What is more novel and groundbreaking is that the present invention also uses the casing as a supporting, fixing and leveling member for the upper anchor plate when manufacturing the anchor foundation of the wind power tower, thereby omitting the temporary rigid supporting member usually required when manufacturing the anchor foundation of the wind power tower, which not only saves the manufacturing cost, but also improves the manufacturing efficiency without causing damage to the gravity bearing platform;

[0055] The setting of the protective cage will not only not increase excessive material and labor costs, but also, as a part of the steel structure of the gravity cap, can further improve the structural strength of the load-bearing part of the gravity cap, and provide auxiliary support for the sleeve when it is used as a supporting and fixing member of the upper anchor plate and a leveling member, and provide effective protection for the sleeve when the concrete of the gravity cap is poured, so that the sleeve hole formed after the concrete of the gravity cap solidifies has better straightness, thereby ensuring the smooth production of the anchor foundation and the replacement of the anchor cable in the later stage;

[0056] In addition, the shape, structure and service life of the casing with a protective cage can be further guaranteed, so that it is not easy to change the structural form and aperture due to the insertion or removal of the anchor cable, thereby providing convenience for the renewal and insertion of the anchor cable, which can not only improve work efficiency, but also save time and effort for whether the new anchor cable can be inserted, saving manpower and material resources, thereby reducing maintenance costs;

[0057] 3) The wind power tower anchoring assembly and anchoring foundation provided by the present invention are extremely novel and unique in concept. Compared with the prior art, the overall structure is simple, the number of structural components is reduced, and labor and material saving are achieved. The manufacturing and use methods thereof are simple and practical, and the maintenance is convenient and quick, which can effectively reduce the maintenance cost. The anchoring stress of the wind turbine tower can also be adjusted as needed, thereby providing a good anchoring foundation and anchoring conditions for the wind turbine. It has outstanding substantial characteristics and significant progress, and therefore has great promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention.

[0059] Obviously, the drawings described below are only drawings of some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, but these other drawings also belong to the drawings required for use in the embodiments of the present invention.

[0060] Figure 1 A schematic structural diagram of a wind power tower anchor assembly provided by an embodiment of the present invention;

[0061] Figure 2 A schematic diagram of a top view of an anchor plate on a wind power tower anchor assembly provided by an embodiment of the present invention;

[0062] Figure 3 A schematic diagram of a top view of the structure of a lower anchor plate of a wind power tower anchor assembly provided by an embodiment of the present invention;

[0063] Figure 4 A schematic diagram of a cross-sectional structure of a casing composed of a main pipe member and a port member in a wind power tower anchoring assembly provided by an embodiment of the present invention;

[0064] Figure 5 A schematic diagram of a wind power tower anchor foundation structure provided by an embodiment of the present invention, wherein the gravity bearing platform has an anchoring operation space;

[0065] Figure 6 A schematic diagram of a wind power tower anchor foundation structure provided by an embodiment of the present invention, wherein a gravity bearing platform and a bearing platform bottom shell are combined to form an anchoring operation space.

[0066] In the figure:

[0067] 110-upper anchor plate, 111-upper plate anchor hole, 120-lower anchor plate, 121-lower plate anchor hole, 130-casing, 131-main pipe fitting, 132-port fitting, 140-protection cage, 141-circumferential steel bar, 151-anchor cable, 152-anchor head, 161-high-strength hollow bolt, 162-high-strength nut, 170-reinforcement pad, 181-bottom plate, 182-support rod;

[0068] 210-gravity bearing platform, 220-base shell of bearing platform, 230-surface soil, 201-operating space;

[0069] 300-tower, 310-flange. DETAILED DESCRIPTION

[0070] In order to make the purpose, technical solution, beneficial effects and significant progress of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the drawings provided in the embodiments of the present invention. Obviously, all the described embodiments are only partial embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0071] It should be noted that:

[0072] The term "comprising" and any variations thereof in the specification and claims of the present invention are intended to cover non-exclusive inclusions, for example, comprising a series of listed parts or components and their connections, and optionally comprising a series of unlisted parts or components, or optionally also comprising other connection relationships, connection units and components inherent to these parts or components and their connections.

[0073] What needs to be understood is:

[0074] In the description of the specification and claims of the present invention, the terms "left", "right" and other indicative directions or positions are only based on the directions or positional relationships shown in the drawings of the embodiments of the present invention. They are for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying the specific directions, specific direction structures and operations that the devices or components described must have. Therefore, they cannot be understood as limitations on the present invention.

[0075] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "connection", "fixation" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a movable connection, or an integrated connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0076] It should also be noted that:

[0077] The following specific embodiments may be combined with each other, and the same or similar concepts or processes therein may not be described in detail in some embodiments.

[0078] The technical solution of the present invention is described in detail below with specific embodiments.

[0079] Example 1

[0080] This embodiment provides a wind power tower anchoring assembly for anchoring a tower of a wind turbine generator on its gravity support platform.

[0081] like Figure 1 A structural diagram of a wind power tower anchor assembly provided by an embodiment of the present invention, Figure 2 A schematic diagram of a top view of an anchor plate on a wind power tower anchor assembly provided by an embodiment of the present invention, Figure 3 A schematic diagram of a top view of the lower anchor plate of a wind power tower anchor assembly provided by an embodiment of the present invention is shown as follows:

[0082] A wind power tower anchoring assembly, comprising:

[0083] An upper anchor plate 110, a lower anchor plate 120, a sleeve 130, a protective cage 140 and an anchor;

[0084] The upper anchor plate 110 is used to be placed on the top of the gravity bearing platform, and the lower anchor plate 120 is used to be placed on the bottom of the gravity bearing platform. The upper anchor plate 110 and the lower anchor plate 120 are also respectively provided with a plurality of upper plate anchor holes 111 and lower plate anchor holes 121 distributed in a circular ring shape, wherein the upper plate anchor holes 111 include upper plate inner ring anchor holes and upper plate outer ring anchor holes, and the lower plate anchor holes 121 include lower plate inner ring anchor holes and lower plate outer ring anchor holes. The upper plate inner ring anchor holes are used to connect with the holes on the inner flange of the tower tube of the tower frame, and the upper plate outer ring anchor holes are used to connect with the holes on the outer flange of the tower tube of the tower frame, and each upper plate inner ring anchor hole and upper plate outer ring anchor hole also correspond vertically to the lower plate inner ring anchor hole and the lower plate outer ring anchor hole respectively;

[0085] A plurality of sleeves 130 are arranged on the upper part of the lower anchor plate 120 and connected to support the upper anchor plate 110, and the upper and lower ports of each sleeve 130 are respectively connected to an upper plate anchor hole 111 of the upper anchor plate 110 and a corresponding lower plate anchor hole 121;

[0086] The protection cage 140 is composed of annular steel bars surrounding the outer circumference of the casing 130 and longitudinal steel bars 141 connected with the annular steel bars to form a cage-like structure. The protection cage 140 is used to be buried inside the gravity support and combined with the gravity support to protect the casing 130;

[0087] The anchoring device includes an anchor cable 151 and an anchor head 152, wherein the anchor cable 151 is a flexible cylindrical steel cable twisted by a plurality of cylindrical steel wires, the anchor head 152 is a clip anchor or an extrusion anchor, and the anchor cable 151 can be inserted into or pulled out of the corresponding sleeve 130 through the upper plate anchor hole 111 or the lower plate anchor hole 121. When the plurality of anchor cables 151 are respectively inserted into the interior of the corresponding sleeve 130 and the two ends thereof are respectively pulled out of the upper plate anchor hole 111 and the lower plate anchor hole 121, the anchor cable 151 can be inserted into or pulled out of the corresponding sleeve 130. After passing through the hole 121, the end of the anchor cable 151 passing through the lower plate anchor hole 121 can be fixed to the bottom of the lower anchor plate 120 through the anchor head 152, and the end of the anchor cable 151 passing through the upper plate anchor hole 111 can be further passed through the hole on the flange 310 at the bottom of the tower 300 erected on the upper part of the upper anchor plate 110 and fixed to the upper part of the flange 310 with the anchor head 152 after force tensioning, thereby anchoring the tower 300 on the gravity support platform 210.

[0088] From the above description, we can see that:

[0089] The wind power tower anchor assembly provided in this embodiment includes upper and lower anchor plates, sleeves, a protective cage and anchors. The upper anchor plate can be placed on the top of the gravity support platform supporting the wind power tower, and the lower anchor plate can be placed on the bottom of the gravity support platform. A plurality of sleeves are arranged between the upper anchor plate and the lower anchor plate, and the anchor cable in the anchor is inserted into the sleeve to form an anchor cage, so as to provide anchoring stress for the wind power tower. Compared with the prior art, the overall structure is simple, the structural components are reduced, the labor and material are saved, and the production and use are simple and convenient.

[0090] The sleeve is arranged on the upper part of the lower anchor plate and connected to the upper anchor plate. It not only serves as an isolation device to prevent adhesion between the anchor cable and the gravity bearing concrete, but also serves as a protective component of the anchor cable and a channel for inserting or removing the anchor cable. When anti-corrosion grease such as butter is injected into the sleeve, it can not only effectively prevent corrosion of the anchor cable, but also facilitate the extraction of the old anchor cable and the insertion of the new anchor cable, thereby providing great convenience for the installation and maintenance of the anchor cable.

[0091] More importantly, in this embodiment, the casing also serves as a supporting, fixing and leveling member for the upper anchor plate when the anchor foundation of the wind power tower is manufactured, thereby eliminating the need for a temporary rigid support member that is usually required when the anchor foundation of the wind power tower is manufactured. This not only saves manufacturing costs, but also improves manufacturing efficiency. After the gravity bearing platform is manufactured, there is no need to remove the casing as a temporary rigid support member, so the gravity bearing platform will not be damaged, thereby further saving manpower and material resources.

[0092] The protective cage is used to be buried inside the gravity cap and combined with the gravity cap to protect the casing. It will not only not increase excessive material and labor costs, but also, as a part of the steel structure of the gravity cap, it can further improve the structural strength of the load-bearing part of the gravity cap, and provide auxiliary support for the casing when it is used as a supporting and fixing member of the upper anchor plate and a leveling member, and provide effective protection for the casing when the concrete of the gravity cap is poured, so that the casing hole formed after the concrete of the gravity cap solidifies has better strength, thereby ensuring the smooth production of the anchor foundation;

[0093] In this embodiment, the stress member in the anchoring device adopts a flexible anchor cable instead of the rigid anchor bolt or anchor rod commonly used in the prior art, and the anchor cable is a flexible columnar steel cable made of a plurality of columnar steel wires, which can be conveniently and quickly inserted into or pulled out of the casing, and one end of the anchor cable can be fixed to the bottom of the lower anchor plate by a clip anchor head or an extruded anchor head, and the other end of the anchor cable passes through the upper anchor plate and is connected to the flange at the bottom of the tower frame and is fixed to the flange plate by the anchor head after being tensioned, so that the tower frame can be conveniently and quickly anchored to the gravity bearing platform;

[0094] It can be seen that this embodiment not only obtains the benefits that the flexible anchor cable can bring as an important component of the wind tower anchor assembly, but also overcomes the shortcomings of the prior art in using the anchor cable as the wind tower anchor. That is, the flexible anchor cable can not only be easily inserted into the holes of the upper and lower anchor plates and sleeves and the tower flange, providing convenience for the installation of the wind tower anchor assembly and the anchoring of the wind tower, but also can be easily pulled out or reinserted from the gravity support platform and taken out or sent into the tower of the tower, so that the installation and update maintenance of the anchor are no longer subject to the limitations of the tower structure, which provides convenience for the installation or replacement and maintenance of the anchor.

[0095] Further, as an optimization, in this embodiment:

[0096] A stress adjuster is also provided on the upper anchor plate 110 and / or the lower anchor plate 120;

[0097] like Figure 1 As shown, the stress adjuster includes a high-strength hollow bolt 161 with an external thread and a high-strength nut 162 with an internal thread. The high-strength hollow bolt 161 is fixed to the upper plate anchor hole 111 and / or the lower plate anchor hole 121 and allows the anchor cable 151 to pass through it. The high-strength nut 162 is screwed onto the high-strength hollow bolt 161 and is used to fit with the anchor head 152. By rotating the high-strength nut 162, the anchor head 152 can be pushed or the anchor cable 151 can be retracted to fine-tune the stress of the anchor cable 151.

[0098] It can be seen that after the stress regulator is set on the upper anchor plate and / or the lower anchor plate, the stress of the anchor cable can be adjusted quickly and conveniently at any time, and in the later operation and maintenance process, when the anchor cable stress is insufficient, the pre-tightening force of the anchor cable can be adjusted by the stress regulator, so that it can adapt to the needs of the wind power tower for anchoring stress.

[0099] Further, such as Figure 1 As shown:

[0100] The wind power tower anchoring assembly provided in this embodiment further includes a reinforcing pad 170;

[0101] The reinforcing pad 170 is used to be laid or embedded on the top surface of the gravity support to enhance the supporting strength of the top surface of the gravity support to the upper anchor plate 110 .

[0102] As an implementation mode, optionally, the reinforcement pad 170 can be formed by casting a steel frame with high-strength cement slurry.

[0103] As an implementation manner, optionally, the sleeve 130 includes a main body pipe 131 and a port piece 132 made of a hard rigid material, and the port piece 132 is disposed on at least one port of the main body pipe 131 for adjusting the overall length of the sleeve 130 .

[0104] On the one hand, when the casing is used as a supporting, fixing and leveling member of the upper anchor plate when making the anchor foundation of the wind power tower, a certain strength is required and its overall length needs to be adjusted. Therefore, by setting the casing to include a main pipe member composed of a hard and rigid material and a port member that can be placed on the port of the main pipe member to adjust the overall length of the casing, this requirement can be met;

[0105] On the other hand, when the anchor cable is tensioned, it will exert pressure on the casing. If the casing is composed entirely of hard and rigid materials, it may cause the casing to bend, deform, or even rupture, thereby affecting the function of the casing. When the casing becomes a main pipe fitting composed of hard and rigid materials and a port piece that can be placed on the port of the main pipe fitting to adjust the overall length of the casing, the overall length of the casing can be adjusted through the port piece to eliminate the pressure exerted on the casing when the anchor cable is tensioned, ensuring that the casing does not deform or rupture when under pressure, thereby ensuring its intact function.

[0106] Optional, such as Figure 4 A schematic diagram of a cross-sectional structure of a casing composed of a main pipe and a port member in a wind power tower anchor assembly provided by an embodiment of the present invention is shown as follows:

[0107] One end of the port piece 132 is connected to the upper plate anchor hole 111 and / or the lower plate anchor hole 121 through its external thread, and the other end of the port piece 132 is arranged as a conical structure and has a longitudinal slit so that it can be inserted into the main pipe fitting 131 and can move forward and backward and extend and retract at the port of the main pipe fitting 131 under the action of external force, thereby adjusting the overall length of the sleeve 130.

[0108] It can be seen that the port piece provided in this embodiment for adjusting the overall length of the sleeve has a simple structure, is easy to manufacture and use, and has a good effect.

[0109] Of course, those skilled in the art may also propose other similar design schemes for modification or replacement based on the basic concept provided in this embodiment as needed and possible to meet the need for adjustable overall length of the sleeve. Obviously, such modification or replacement still falls within the scope of protection claimed by the present invention.

[0110] Optional, such as Figure 1 As shown, the main pipe 131 is a steel pipe, and the side wall of the steel pipe is connected as a longitudinal steel bar with the annular steel bars 141 arranged on the outer periphery of the steel pipe to form a protective cage 140.

[0111] Obviously, using steel pipes as the main pipe fittings can not only meet the needs of being used as upper anchor plate support, fixation and leveling components, but also save the longitudinal steel bars that constitute the protective cage, and can be well combined with the concrete that constitutes the gravity pedestal, thereby obtaining a better quality gravity pedestal structure.

[0112] Further, such as Figure 1 As shown:

[0113] The wind power tower anchoring assembly provided in this embodiment also includes an auxiliary support member;

[0114] The auxiliary support member includes a bottom plate 181 and a support rod 182 . The bottom plate 181 is disposed below the lower anchor plate 120 . The support rod 182 is disposed between the bottom plate 181 and the lower anchor plate 120 to connect and support the lower anchor plate 120 and adjust the height of the lower anchor plate 120 .

[0115] The auxiliary support member is not a necessary component of the wind turbine tower anchor assembly provided in this embodiment, but during the production process of the wind turbine tower anchor foundation, it is usually necessary to support, fix and level the lower anchor plate. Therefore, after the auxiliary support member is added, the production of the wind turbine tower anchor foundation can be further facilitated, thereby improving the efficiency of the production of the wind turbine tower anchor foundation.

[0116] Example 2

[0117] This embodiment provides a wind power tower anchoring foundation for anchoring a tower of a wind turbine.

[0118] like Figure 5 A schematic diagram of a wind power tower anchor foundation structure with a gravity bearing platform having an anchoring operation space provided by an embodiment of the present invention, Figure 6 A schematic diagram of a wind power tower anchor foundation structure provided by an embodiment of the present invention, in which a gravity bearing platform and its bearing platform bottom shell are combined to form an anchoring operation space, is shown as follows:

[0119] The wind power tower anchor foundation provided in this embodiment is composed of a gravity bearing platform 210 and the wind power tower anchor assembly provided in Embodiment 1, wherein:

[0120] The gravity support 210 is cast by reinforced concrete and has the following features: Figure 5 The operation space 201 for anchoring the anchor cable 151 below the lower anchor plate 120 is shown, or the gravity bearing platform 210 has an operation space 201 for anchoring the anchor cable 151 below the lower anchor plate 120 after being combined with the bearing platform bottom shell 220;

[0121] The upper anchor plate 110 is placed on the top of the gravity platform 210, the lower anchor plate 120 is placed on the bottom of the gravity platform 210, the sleeve 130 is arranged between the lower anchor plate 120 and the lower anchor plate 120, the protective cage 140 is arranged on the outside of the sleeve 130 and buried in the concrete of the gravity platform 210 and connected to the steel bars inside the gravity platform 210, the anchor cable 151 is inserted into the sleeve 130 and anchors the tower 300 to the gravity platform 210 through the flange 310 at its bottom through the anchor head 152 at its end, and the anchor cable 151 can also be pulled out of the sleeve 130 for replacement and re-anchor the tower 300 to the gravity platform 210 through the flange 310 at its bottom through the anchor head 152.

[0122] From the above description, we can see that:

[0123] The wind power tower anchoring foundation structure provided in this embodiment is simple and novel, with few components. It can not only meet the anchoring needs of the wind power tower, but also is simple and convenient to manufacture, install, maintain and update. Compared with the existing technology, it has outstanding substantial characteristics and significant progress.

[0124] Example 3

[0125] This embodiment provides a method for making and using a wind power tower anchor foundation for anchoring a tower of a wind turbine.

[0126] A method for making and using a wind power tower anchor foundation comprises the following steps:

[0127] A foundation pit for anchoring the foundation is excavated at the installation site of the wind turbine, and then concrete is poured into the foundation pit to form a cap bottom shell 220;

[0128] The wind power tower anchor foundation is manufactured inside the base shell 220, or the wind power tower anchor foundation is manufactured at other places and then hoisted into the base shell 220. The specific manufacturing steps of the wind power tower anchor foundation include:

[0129] The lower anchor plate 120 is placed in the base bottom shell 220 or other manufacturing sites and leveled. The placement and leveling of the lower anchor plate 120 can be assisted by an auxiliary support member consisting of a bottom plate 181 and a support rod 182 connected to the bottom plate 181;

[0130] Install the casing 130 on the lower anchor plate 120 and place the upper anchor plate 110 on the top of the casing 130 and level the upper anchor plate 110;

[0131] Steel bars are tied around the outer periphery of the casing 130 to form a protective cage 140, and cap steel bars are tied around the outer periphery of the protective cage 140 and between the upper anchor plate 110 and the lower anchor plate 120 to connect with the protective cage 140 to form a whole;

[0132] A forming template of a gravity cap 210 is set up around the cap reinforcement and between the upper anchor plate 110 and the lower anchor plate 120, wherein the gravity cap 210 constructed by the forming template includes an operating space 201 in the structure for anchoring the end of the anchor cable 151 at the bottom of the lower anchor plate 120, or has an operating space 201 that can be formed to anchor the anchor cable below the lower anchor plate after being combined with the cap bottom shell;

[0133] After pouring concrete in the forming template of the gravity bearing platform 210 and waiting for it to solidify and produce corresponding strength, the installation foundation pit is backfilled with topsoil 230 so that only the upper anchor plate 110 and the part above of the wind power tower anchor foundation are exposed, and the production of the wind power tower anchor foundation is completed; or

[0134] Concrete is poured into the forming template of the gravity bearing platform 210 and a part of the space at the bottom of the upper anchor plate 110 is reserved while pouring the concrete. After the concrete solidifies and produces the corresponding strength, high-strength cement slurry is injected into the part of the space reserved at the bottom of the upper anchor plate 110 to form a reinforcement pad 170. Then, the installation foundation pit is backfilled with topsoil 230 so that only the upper anchor plate 110 and the part above the anchor plate 110 of the wind power tower anchor foundation are exposed, and the production of the wind power tower anchor foundation is completed;

[0135] Insert the anchor cable 151 into the casing 130 or insert the anchor cable 151 into the casing 130 after the protective cage 140 is constructed and let the ends of the anchor cable 151 pass through the upper anchor plate 110 and the lower anchor plate 120 respectively;

[0136] One end of the anchor cable 151 is fixed to the bottom of the lower anchor plate 120 by the anchor head 152 through the operating space;

[0137] The tower 300 of the wind turbine generator is placed on the upper anchor plate 110 through the flange 310 at the bottom thereof and the other end of the anchor cable 151 is passed through the hole on the flange 310. Then the anchor cable 151 is tensioned. When the stress of the anchor cable 151 meets the requirements, the anchor head 152 is used to anchor it, thus realizing the use of the anchor foundation of the wind turbine tower.

[0138] When the anchor cable 151 needs to be replaced, the anchor head 152 at the bottom of the lower anchor plate 120 is first removed, and then the anchor cable 151 is pulled out from the sleeve 130 from above the flange 310 by external force. After the anchor cable 151 is replaced, it is inserted into the sleeve 130 from the hole of the flange 310, and one end of the anchor cable 151 passing through the lower anchor plate 120 is fixed with the anchor head 152, and then the end of the anchor cable 151 on the upper part of the flange 310 is tensioned to reach a specified stress and then anchored with the anchor head 152, that is, the anchor foundation of the wind power tower is reused;

[0139] If an upper anchor plate 110 and / or a lower anchor plate 120 with a stress adjuster is used on the anchor foundation of the wind power tower, the stress of the anchor cable 151 can be finely adjusted by rotating the high-strength nut 162 in the stress adjuster during use.

[0140] From the above description, we can see that:

[0141] The method for making and using the wind power tower anchor foundation provided in this embodiment is simple and convenient, has strong adaptability and practicality, can meet the anchoring needs of the wind power tower, and has outstanding substantial characteristics and significant progress compared to the prior art.

[0142] In summary, we can see that:

[0143] The wind power tower anchor assembly and anchor foundation and the method for making and using the wind power tower anchor assembly and anchor foundation provided by the present invention have outstanding substantial characteristics and significant progress compared with the prior art. While obtaining the flexible characteristics of the anchor cable to overcome the inconvenience of installing and replacing the rigid anchor bolts, the sleeve reinforced by the protective cage further overcomes the technical deficiencies when the existing anchor cable is used as a stress component, so that the sleeve not only serves as an anti-adhesion isolation component between the anchor cable and the gravity foundation concrete, but also serves as a protective component of the anchor cable and a channel for inserting or removing the anchor cable and an effective anti-corrosion protection component, which is convenient for better installation and maintenance of the anchor cable. It also serves as a supporting, fixing and leveling component for the upper anchor plate when making the wind power tower anchor foundation, eliminating the need for temporary rigid support components, thereby not only saving production costs, but also improving production efficiency, and will not cause damage to the gravity foundation, saving manpower and material resources, providing a new type of innovative anchor assembly and anchor foundation for the anchoring of the tower of the wind turbine, and contributing to the development of wind power generation. Therefore, it is of great value for promotion and application.

[0144] In the description of the above manual:

[0145] The terms "this embodiment", "an embodiment of the present invention", "as shown in", "further", etc., mean that the specific features, structures, components or characteristics described in the embodiment are included in at least one embodiment of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment, and the specific features, structures, components or characteristics described can be combined or combined in any one or more embodiments in a suitable manner;

[0146] In addition, under the premise that no contradiction occurs, a person skilled in the art may combine or combine the different embodiments and features in the different embodiments described in this specification.

[0147] Finally, it should be noted that:

[0148] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. The non-essential improvements, adjustments or replacements made by those skilled in the art based on the contents of this specification are all within the scope of protection required by the present invention.

Claims

1. A wind power tower anchoring assembly, used for anchoring a wind turbine tower on its gravity support, characterized in that: include: Upper anchor plate, lower anchor plate, casing, protective cage and anchors; The upper anchor plate is used to be placed on the top of the gravity pedestal, and the lower anchor plate is used to be placed on the bottom of the gravity pedestal. The upper anchor plate and the lower anchor plate are also respectively provided with a plurality of upper plate anchor holes and lower plate anchor holes distributed in a circular ring shape, wherein the upper plate anchor holes include upper plate inner ring anchor holes and upper plate outer ring anchor holes, and the lower plate anchor holes include lower plate inner ring anchor holes and lower plate outer ring anchor holes, the upper plate inner ring anchor holes are used to connect with the holes on the inner flange of the tower barrel of the tower, and the upper plate outer ring anchor holes are used to connect with the holes on the outer flange of the tower barrel of the tower, and each of the upper plate inner ring anchor holes and the upper plate outer ring anchor holes are also respectively vertically corresponding to the lower plate inner ring anchor holes and the lower plate outer ring anchor holes one by one; A plurality of sleeves are arranged on the upper part of the lower anchor plate and connected to support the upper anchor plate, and the upper and lower ports of each sleeve are respectively connected to an upper plate anchor hole of the upper anchor plate and a corresponding lower plate anchor hole; The protection cage is composed of annular steel bars surrounding the outer circumference of the casing and longitudinal steel bars connected to the annular steel bars to form a cage-like structure. The protection cage is used to be buried inside the gravity support and combined with the gravity support to protect the casing; The anchoring device comprises an anchor cable and an anchor head, wherein the anchor cable is a flexible columnar steel cable formed by twisting a plurality of columnar steel wires, and the anchor cable can pass through the upper plate anchor hole or the lower plate anchor hole and penetrate into the corresponding casing or be pulled out from the casing. When the plurality of anchor cables respectively penetrate into the interior of each casing and the two ends thereof respectively penetrate out from the upper plate anchor hole and the lower plate anchor hole, the end of the anchor cable passing through the lower plate anchor hole can be fixed to the bottom of the lower anchor plate by the anchor head, and the end of the anchor cable passing through the upper plate anchor hole can be further passed through the hole on the flange at the bottom of the tower frame erected on the upper part of the upper anchor plate and fixed to the upper part of the flange with the anchor head after force tensioning, thereby anchoring the tower frame to the gravity bearing platform.

2. The wind power tower anchor assembly according to claim 1, characterized in that: The upper anchor plate and / or the lower anchor plate are also provided with a stress adjuster; The stress adjuster includes a high-strength hollow bolt with an external thread and a high-strength nut with an internal thread. The high-strength hollow bolt is fixed to the upper plate anchor hole and / or the lower plate anchor hole and allows the anchor cable to pass through. The high-strength nut is screwed onto the high-strength hollow bolt and is used to fit with the anchor head. By rotating the high-strength nut, the anchor head can be pushed or the anchor cable can be retracted to fine-tune the stress of the anchor cable.

3. The wind power tower anchor assembly according to claim 1, characterized in that: Also includes: Reinforcement pads; The reinforcing pad is used to be laid or embedded on the top surface of the gravity bearing platform to enhance the supporting strength of the top surface of the gravity bearing platform to the upper anchor plate.

4. The wind power tower anchor assembly according to claim 3, characterized in that: The reinforcement pad is formed by pouring a steel reinforcement frame and high-strength cement slurry.

5. The wind power tower anchor assembly according to claim 1, characterized in that: The sleeve comprises a main body pipe member and a port member which are made of hard rigid material, and the port member is arranged on at least one port of the main body pipe member for adjusting the overall length of the sleeve.

6. The wind power tower anchor assembly according to claim 5, characterized in that: One end of the port piece is connected to the upper plate anchor hole and / or the lower plate anchor hole through its external thread, and the other end of the port piece is arranged in a conical structure and has a longitudinal slit so that it can be inserted into the main pipe fitting and can move forward and backward and extend and retract at the port of the main pipe fitting under the action of external force, thereby adjusting the overall length of the sleeve.

7. The wind power tower anchor assembly according to claim 5, characterized in that: The main pipe is a steel pipe, and the side wall of the steel pipe is connected as a longitudinal steel bar with the annular steel bars arranged on the outer periphery of the steel pipe to form the protective cage.

8. The wind power tower anchor assembly according to claim 1, characterized in that: Also includes: Auxiliary support members; The auxiliary support member includes a bottom plate and a support rod, wherein the bottom plate is arranged below the lower anchor plate, and the support rod is arranged between the bottom plate and the lower anchor plate to connect and support the lower anchor plate and adjust the height of the lower anchor plate.

9. A wind power tower anchor foundation, used for anchoring the tower of a wind turbine, characterized in that: The wind power tower anchor foundation is composed of a gravity bearing platform and a wind power tower anchor assembly as described in any one of claims 1 to 8 above, wherein: The gravity cap is cast by reinforced concrete, and has an operating space for anchoring the anchor cable below the lower anchor plate, or has an operating space for anchoring the anchor cable below the lower anchor plate formed by combining with the cap bottom shell; The upper anchor plate is arranged on the top of the gravity support platform, the lower anchor plate is arranged on the bottom of the gravity support platform, the casing is arranged between the lower anchor plate and the lower anchor plate, the protective cage is arranged on the outside of the casing and buried in the concrete of the gravity support platform and connected with the steel bars inside the gravity support platform, the anchor cable is inserted into the casing and anchors the tower frame to the gravity support platform through the flange at its bottom through the anchor head at its end, and the anchor cable can also be pulled out of the casing for replacement and re-anchor the tower frame to the gravity support platform through the flange at its bottom through the anchor head.

10. A method for making and using a wind power tower anchor foundation as claimed in claim 9, characterized in that: The steps include: Excavating an installation pit for an anchor foundation at the installation site of the wind turbine generator, and then pouring concrete in the installation pit to form a cap bottom shell; The wind turbine tower anchor foundation is manufactured inside the base shell of the foundation, or the wind turbine tower anchor foundation is manufactured at other places and then hoisted into the base shell of the foundation, wherein the specific manufacturing steps of the wind turbine tower anchor foundation include: The lower anchor plate is placed in the bottom shell of the platform or other manufacturing places and is leveled, wherein the placement and leveling of the lower anchor plate can be assisted by an auxiliary support member composed of a bottom plate and a support rod connected to the bottom plate; Installing a casing on the lower anchor plate and placing an upper anchor plate on top of the casing and leveling the upper anchor plate; Tie steel bars around the outer periphery of the casing to form a protective cage, tie cap steel bars around the outer periphery of the protective cage and between the upper anchor plate and the lower anchor plate and connect them to the protective cage to form a whole; A forming template of the gravity cap is set up around the cap reinforcement and between the upper anchor plate and the lower anchor plate, wherein the gravity cap structure constructed by the forming template includes an operating space for anchoring the end of the anchor cable at the bottom of the lower anchor plate, or has an operating space for anchoring the anchor cable below the lower anchor plate after being combined with the cap bottom shell; After pouring concrete in the gravity bearing platform forming template and waiting for it to solidify and produce corresponding strength, the installation foundation pit is backfilled with topsoil so that only the upper anchor plate and the part above the anchor plate of the wind turbine tower anchor foundation are exposed, and the production of the wind turbine tower anchor foundation is completed; or Concrete is poured into the gravity bearing platform forming template and a part of the space at the bottom of the upper anchor plate is reserved while pouring the concrete. After the concrete solidifies and produces corresponding strength, high-strength cement slurry is injected into the part of the space reserved at the bottom of the upper anchor plate to form a reinforcement pad. Then, the installation foundation pit is backfilled with topsoil so that only the upper anchor plate and the part above the anchor plate of the wind turbine tower anchor foundation are exposed, thus completing the production of the wind turbine tower anchor foundation; Inserting the anchor cable into the casing or inserting the anchor cable into the casing after the protective cage is constructed and letting the ends of the anchor cable pass through the upper anchor plate and the lower anchor plate respectively; Fixing one end of the anchor cable to the bottom of the lower anchor plate with an anchor head through the operating space; The tower of the wind turbine generator is placed on the upper anchor plate through the flange at the bottom thereof and the other end of the anchor cable is passed through the hole on the flange. Then the anchor cable is tensioned and when the stress of the anchor cable meets the requirements, the anchor cable is anchored with an anchor head, thus realizing the use of the anchor foundation of the wind turbine tower; When the anchor cable needs to be replaced, the anchor head at the bottom of the lower anchor plate is first removed, and then the anchor cable is pulled out of the sleeve from above the flange by external force. After the anchor cable is replaced, it is inserted into the sleeve from the hole of the flange, and one end of the anchor cable passing through the lower anchor plate is fixed with the anchor head, and then the anchor cable end on the upper part of the flange is tensioned to reach the specified stress and then anchored with the anchor head, so that the anchor foundation of the wind power tower can be reused; If the upper anchor plate and / or the lower anchor plate with a stress adjuster is used on the anchor foundation of the wind power tower, the stress of the anchor cable can be finely adjusted by the stress adjuster during use.

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