Structure for realizing quick form removal of wind power mixed tower

Abstract

The utility model provides a structure for realizing quick form removal of a wind power mixed tower, which can realize quick form removal in actual production and improve the production efficiency. The structure comprises an outer mold and an inner mold which are concentrically arranged, the outer mold and the inner mold are both circular, and an annular concrete pouring area is formed between the outer mold and the inner mold; the outer mold is formed by sequentially splicing a plurality of vertically-extending outer mold modules, the inner mold is formed by sequentially splicing a plurality of vertically-extending inner mold modules, and the adjacent modules are detachably connected. The top of the outer mold module is provided with an outer top plate fixed with the outer mold module into a whole, the top of the inner mold module is provided with an inner top plate fixed with the inner mold module into a whole, and the outer top plate and the inner top plate are each provided with a plurality of bolt holes distributed in the circumferential direction. A plurality of adjusting plates are detachably connected to the outer top plate and the inner top plate through bolt holes, a sleeve is arranged between every two opposite adjusting plates, adjusting lead screws which extend into the sleeves and are in threaded fit with the sleeves are further hinged to the two adjusting plates respectively, and the two adjusting lead screws are opposite in rotating direction. And the extension line of the sleeve passes through the centers of the outer mold and the inner mold.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power, in particular to a structure capable of realizing rapid demoulding of a wind power hybrid tower. Background Art

[0002] With the gradual consumption of global energy, wind power as a renewable energy generation technology has achieved unprecedented rapid development. Among the current wind power generation equipment, the concrete tower is the most common construction structure. The lower part is mainly constructed with concrete and the upper part is a steel tower section. The overall structure has strong reliability and low construction cost. When making the lower concrete structure, the steel formwork is currently used for pouring. Since the concrete radius of the bottom of the mixed tower is large (up to more than 3 meters), the radius of the steel formwork used is also more than 3 meters. Therefore, pouring a concrete mixed tower base usually requires four curved steel formworks for assembly, which are then disassembled after pouring. The shortcomings of this method in the actual construction process are also revealed one by one: First, the radius of the steel formwork is large, and special vehicles are required for transportation, resulting in high transportation costs; second, the steel formwork is heavy, and its arc length span is large, so it is very easy to deform due to the bumps of the vehicle during transportation and cannot be reused; third, the installation speed is slow. When assembling a steel formwork, it usually takes 7-8 workers 3-4 days, which seriously reduces the construction efficiency; fourth, the steel formwork cannot be recycled when it cannot be used again, resulting in a lot of industrial waste, which is not conducive to environmental protection. Therefore, at this stage, there is an urgent need for a structure that is simple in structure, easy to use, and can achieve rapid demolding of wind power mixed towers in actual production. Utility Model Content

[0003] The utility model provides a structure for realizing rapid demoulding of a wind power hybrid tower, which can realize rapid demoulding in actual production and improve production efficiency.

[0004] The technical solution of the utility model is implemented as follows: a structure for realizing rapid demoulding of a wind power hybrid tower comprises an outer mold and an inner mold arranged concentrically, wherein the outer mold and the inner mold are both circular and form an annular concrete pouring area between the two;

[0005] The outer mold is formed by sequentially splicing a plurality of vertically extending outer mold modules, and the inner mold is formed by sequentially splicing a plurality of vertically extending inner mold modules, and adjacent modules can be detachably connected;

[0006] The top of the outer mold module is provided with an outer top plate fixed thereto as an integral unit, and the top of the inner mold module is provided with an inner top plate fixed thereto as an integral unit, and the outer top plate and the inner top plate are both provided with a plurality of bolt holes arranged circumferentially;

[0007] The outer top plate and the inner top plate are detachably connected to a plurality of adjustment plates through the bolt holes, a sleeve is provided between two opposite adjustment plates, and the two adjustment plates are respectively hinged with adjustment screws extending into the sleeves and threadedly matched with the sleeves, and the two adjustment screws rotate in opposite directions;

[0008] The extension line of the sleeve passes through the centers of the outer mold and the inner mold.

[0009] As a preferred embodiment, at least one easily detachable module group is embedded in the inner mold module, and the inner mold module and the easily detachable module group are assembled together to form an inner mold;

[0010] The easily dismantled module group is an axisymmetric structure, and its axis of symmetry passes through the center of the outer mold and the inner mold;

[0011] The easily detachable module group comprises three easily detachable modules that are spliced ​​and connected, and the splicing surface between two adjacent easily detachable modules does not pass through the center of the outer mold and the inner mold.

[0012] As a preferred embodiment, a vertical support column is fixed at the center of the inner mold, and the support column is provided with multiple layers, each layer including multiple circumferentially uniformly distributed transverse support rods, and the length of the transverse support rods is adjustable;

[0013] The ends of the transverse support rods are connected with a plurality of circumferentially evenly distributed vertical inner back ribs, and the transverse support rods press the vertical inner back ribs against the inner mold.

[0014] As a preferred embodiment, the inner wall of the inner mold is supported by a plurality of vertically arranged back corrugated plates, the back corrugated plates are annular and extend in a horizontal plane, and the vertical inner back corrugations are supported on the inner mold through the back corrugated plates.

[0015] As a preferred embodiment, the back corrugated board is composed of multiple arc segments, and the back corrugated board is a single-layer structure or a double-layer structure. Connecting plates are fixed at both ends of each back corrugated board, and adjacent back corrugated boards are detachably connected by bolts passing through the connecting plates.

[0016] As a preferred embodiment, a construction platform located above the transverse support rod is further provided in the inner mold, and the construction platform is honeycomb-shaped and has an openable and closable passageway reserved thereon.

[0017] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: the utility model realizes the structure of rapid demolding of the wind power hybrid tower by setting corresponding top plates and adjustment plates on the top of the outer mold module and the inner mold module, cooperating with the sleeve and two adjustment screws with opposite rotation directions, which can not only adaptively adjust the distance between the top of the outer mold and the top of the inner mold, but also only needs to unscrew an adjustment screw from it when demolding to achieve the separation of the top of the outer mold and the top of the inner mold. Since the inner mold is subjected to the squeezing pressure of concrete after long-term use, adjacent inner mold modules are squeezed and fit firmly, resulting in certain difficulties in disassembling the inner mold. The utility model solves this problem well by embedding an easy-to-remove module group between the inner mold modules. When disassembling the inner mold, since the splicing surface of two adjacent easy-to-remove modules in the easy-to-remove module group does not pass through the center of the inner mold, the degree of fit here is much lower than other parts. It only needs to apply a little force to the easy-to-remove module group to disassemble it. As long as one easy-to-remove module is removed, all the inner mold modules can be easily disassembled naturally, which greatly improves the demolding speed of the inner mold, improves the efficiency of the transition, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the concrete section of the concrete tower;

[0020] Figure 2 This is a schematic cross-sectional view of an embodiment of the utility model;

[0021] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0022] Figure 4 for Figure 2 A partial enlarged view of point B in the middle;

[0023] Figure 5 This is a schematic diagram of the embodiment after the outer mold is removed;

[0024] Figure 6 for Figure 5 A partial enlarged view of point C in the middle;

[0025] Figure 7 is a top view schematic diagram of the adjustment plate;

[0026] Figure 8is a side view schematic diagram of the adjustment plate;

[0027] Fig. 9 It is a partial three-dimensional schematic diagram of the inner mold;

[0028] Fig.10 It is a partial top view schematic diagram of the inner mold;

[0029] Fig.11 It is a structural schematic diagram of a back corrugated board;

[0030] Fig.12 It is a structural schematic diagram of another back corrugated board;

[0031] Fig.13 It is a structural schematic diagram of the support column part;

[0032] In the figure: 1-external form; 2-inner form; 3-concrete pouring area; 4-external form module; 5-inner form module; 6-external top plate; 7-inner top plate; 8-bolt hole; 9-adjustment plate; 10-sleeve; 11-adjustment screw; 12-easily dismantled module group; 13-support column; 14-lateral support rod; 15-vertical inner back rib; 16-back rib plate; 17-connecting plate; 18-construction platform; 19-passage; 20-concrete section; 21-easily dismantled splicing surface. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Example:

[0035] like Figure 1 As shown, it is a schematic diagram of the concrete section of the concrete tower in the prior art. The concrete tower is cylindrical in shape as a whole and is located at the bottom of the wind turbine when installed. The radial dimension is about 7m, and the upper and lower dimensions are consistent. Since the height is also relatively large, it cannot be formed in one time, so it needs to be stacked in multiple layers, and each layer includes two semicircular concrete segments 20. The two concrete segments 20 form a circle, and the butt joints between the upper and lower layers are staggered to disperse the stress on each concrete segment 20 and make it evenly stressed.

[0036] The wind power tower construction aluminum mold in this embodiment is used to produce Figure 1In order to facilitate construction and improve construction efficiency, the utility model is usually installed next to the site of the wind turbine. After the concrete segment 20 is produced, it can be directly transported to the selected location for construction. This embodiment can achieve rapid demolding when in use, especially for the inner mold, which is very convenient to disassemble. After the construction is completed at one location, it can be quickly disassembled and immediately transferred to the next construction site, which can greatly improve production efficiency. The specific structure of this embodiment is described in detail below.

[0037] like Figure 2 , Figure 3 and Figure 4 As shown, it is a cross-sectional schematic diagram of the whole embodiment, which mainly includes an outer mold 1, an inner mold 2, and a construction platform 18, wherein the outer mold 1 and the inner mold 2 are two concentrically arranged circular structures, and the space formed between the two is a ring-shaped concrete pouring area 3. During construction, after the outer mold 1 and the inner mold 2 are installed and fixed in place, concrete is poured into the concrete pouring area 3. After the concrete is set, the outer mold 1 is removed, and the set concrete segment 20 can be exposed.

[0038] For a single manufacturer, the concrete segments 20 produced by the manufacturer are often of the same specification. Since the radial dimension is 7m, the radial dimensions of the entire outer mold 1 and the inner mold 2 are very large. In this embodiment, the entire outer mold 1 is equally divided into 56 outer mold modules 4 with the same structure, and the inner mold 2 is equally divided into about 50 inner mold modules 5 with the same structure. The outer mold modules 4 and the inner mold modules 5 are both made of aluminum. In this way, the outer mold 1 and the inner mold 2 with large volume and weight are divided into single modules with very small volume and weight, which are very convenient in the process of assembly, disassembly and transportation. Therefore, the central angle corresponding to a single outer mold module 4 is 360° divided by the number of outer mold modules 4, and the central angle corresponding to the inner mold module 5 is 360° divided by the number of inner mold modules 5.

[0039] A plurality of vertically arranged back corrugated plates 16 are arranged inside the inner mold 2. The back corrugated plates 16 are annular in structure and extend in the horizontal plane. Their main function is to provide a certain support to the inner mold 2, offset the force exerted by the concrete in the concrete pouring area 3 on the inner mold 2, and prevent the inner mold 2 from deforming. The number of back corrugated plates 16 can be selected as needed, for example, three layers can be selected, which are respectively arranged at the upper part, the middle part and the lower part of the inner mold 2, and corresponding supporting parts are arranged on the inner mold 2 to prevent the back corrugated plates 16 from falling. The components of the back corrugated plates 16 are as follows: Fig.11 and 12 As shown, there are two different structures of back corrugated plates 16. The entire annular back corrugated plate 16 is composed of a plurality of arc segments connected end to end in sequence, wherein: Fig.11 The back corrugated board 16 shown is a single-layer structure. Fig.12The back corrugated plate 16 shown is a double-layer structure with higher strength, and the number and center angle of the back corrugated plate 16 can be selected as needed. Connecting plates 17 are provided at both ends of a single back corrugated plate 16, and two adjacent back corrugated plates 16 are detachably connected by connecting plates 17 with bolts.

[0040] In order to further improve the firmness of the entire device, the inner circle of the inner mold 2 is also provided with a plurality of circumferentially uniformly distributed vertical inner back ribs 15. Fig.13 The structure shown is fixed. Fig.13 As shown, it includes a vertical support column 13, which is located at the center of the outer mold 1 and the inner mold 2. Multiple layers are arranged on the support column 13, and each layer is provided with multiple circumferentially arranged transverse support rods 14. The length of the transverse support rod 14 is adjustable, and the vertical inner back ribs 15 are installed at the ends of the transverse support rods 14. By adjusting the length of the transverse support rods 14, the vertical inner back ribs 15 are firmly pressed against the internal back rib plates 16, thereby supporting the inner mold 2 from the inside.

[0041] In order to ensure the stability of the outer mold 1 and the inner mold 2 when pouring concrete, the embodiment also provides a corresponding fastening structure at the upper part, such as Figure 3 , 6 As shown in FIGS. 7 and 8, an outer top plate 6 integrally formed with the outer mold module 4 is provided on the top of the outer mold 1, and an inner top plate 7 integrally formed with the inner mold module 5 is provided on the top of the inner mold 2. Corresponding bolt holes 8 are opened on the outer top plate 6 and the inner top plate 7. Figure 7 , 8 The structure shown is fixed, and this structure can be arranged in multiple pieces in the circumferential direction of the entire outer mold 1 as needed. The structure includes two adjustment plates 9, a sleeve 10 is arranged between the two adjustment plates 9, and each adjustment plate 9 is provided with an adjustment screw 11 that extends into the sleeve 10 and is threadedly matched with it, and the rotation directions of the two adjustment screws 11 are opposite, and then the two adjustment plates 9 are fixed to the corresponding outer top plate 6 and inner top plate 7 by bolts, and the spacing between the outer mold 1 and the inner mold 2 can be fine-tuned by screwing the sleeve 10, while preventing them from deforming.

[0042] The inner mold 2 can be reused without demoulding in the same workplace. However, when the workplace needs to be changed, it needs to be demoulded and transported. After being used for a period of time, it is continuously subjected to the force of concrete, and the inner mold modules 5 are tightly engaged with each other, which is not conducive to demoulding. In order to solve this problem, this embodiment provides a group of easily dismantled module groups 12 on the inner mold 2. Fig. 9 , 10As shown, the basic principle of the easily detachable module group 12 is to change the inclination angle of its fitting surface to facilitate the release of the force. One or more easily detachable module groups 12 can be set on an inner mold 2 as needed. The easily detachable module group 12 is spliced ​​with other inner mold modules 5 to form the inner mold 2. As for the structure of the upper end face and the lower end face, the easily detachable module group 12 is consistent with the other inner mold modules 5, which will not be repeated here. The easily detachable module group 12 is spliced ​​by three easily detachable modules. The easily detachable module group 12 is an axially symmetrical structure, and its symmetry axis passes through the center of the inner mold 2, while the easily detachable splicing surfaces 21 between each easily detachable module do not pass through the center of the inner mold 2. This structure can easily eliminate the force between adjacent modules when removing the inner mold. As long as one easily detachable module is removed, all the inner mold modules 5 can be naturally and easily removed.

[0043] Construction platform 18 is installed on Fig.13 The top of the structure shown provides a foundation for laying a construction platform 18. The overall structure of the construction platform 18 is honeycomb-shaped, and an openable passage 19 is provided on it to facilitate workers to enter the interior for operation.

[0044] Generally, the outer diameter of the concrete segments 43 produced by the same manufacturer is consistent, for example, all are 6980mm, but the wall thickness may have a variety of specifications and sizes, for example, from 240mm to 320mm. In this case, the outer mold 1 of this embodiment can be completely universal, but the inner mold 2 needs to be fine-tuned appropriately according to the situation to produce concrete segments 20 with different wall thicknesses. At this time, it is not necessary to replace all the inner mold modules 5. It is only necessary to remove one or more inner mold modules 5 and add inner mold modules 5 of other specifications and sizes when necessary to achieve fine-tuning of the radial size of the concrete pouring area 3. As for the influence of the curvature of other inner mold modules 5, since the diameter of the entire inner mold 2 is large and the arc length of a single inner mold module 5 is too small, the influence on the curvature can be completely ignored.

[0045] In summary, the utility model realizes the rapid demolding of the wind power hybrid tower with a simple structure and easy use. The inner mold can be removed quickly and safely during demolding. As long as one easy-to-remove module is removed, all the inner mold modules can be easily removed naturally, which greatly improves the demolding speed of the inner mold, improves the efficiency of the transfer, and has good practicality.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A structure for realizing rapid demoulding of a wind power hybrid tower, characterized in that: It comprises an outer mold (1) and an inner mold (2) which are arranged concentrically, wherein the outer mold (1) and the inner mold (2) are both circular and form an annular concrete pouring area (3) between the two; The outer mold (1) is formed by sequentially splicing a plurality of vertically extending outer mold modules (4), and the inner mold (2) is formed by sequentially splicing a plurality of vertically extending inner mold modules (5), and adjacent modules can be detachably connected; The top of the outer mold module (4) is provided with an outer top plate (6) fixed thereto as an integral unit, and the top of the inner mold module (5) is provided with an inner top plate (7) fixed thereto as an integral unit, and the outer top plate (6) and the inner top plate (7) are both provided with a plurality of bolt holes (8) arranged circumferentially; The outer top plate (6) and the inner top plate (7) are detachably connected to a plurality of adjustment plates (9) through the bolt holes (8); a sleeve (10) is provided between two opposing adjustment plates (9); and the two adjustment plates (9) are respectively hinged with adjustment screws (11) extending into the sleeves (10) and threadably engaged with the sleeves (10); the two adjustment screws (11) rotate in opposite directions; The extension line of the sleeve (10) passes through the centers of the outer mold (1) and the inner mold (2).

2. The structure for realizing rapid demoulding of a wind power hybrid tower according to claim 1, characterized in that: At least one easily detachable module group (12) is embedded in the inner mold module (5), and the inner mold module (5) and the easily detachable module group (12) are assembled together to form an inner mold (2); The easily detachable module group (12) is an axisymmetric structure, and its axis of symmetry passes through the center of the outer mold (1) and the inner mold (2); The easily detachable module group (12) comprises three easily detachable modules that are spliced ​​and connected, and the splicing surface between two adjacent easily detachable modules does not pass through the center of the outer mold (1) or the inner mold (2).

3. The structure for realizing rapid demoulding of a wind power hybrid tower according to claim 1, characterized in that: A vertical support column (13) is fixed at the center of the inner mold (2), and the support column (13) is provided with multiple layers, each layer including multiple circumferentially evenly distributed transverse support rods (14), and the length of the transverse support rods (14) is adjustable; The ends of the transverse support rods (14) are connected to a plurality of circumferentially evenly distributed vertical inner back ribs (15), and the transverse support rods (14) press the vertical inner back ribs (15) against the inner mold (2).

4. The structure for realizing rapid demoulding of a wind power hybrid tower according to claim 3, characterized in that: The inner wall of the inner mold (2) is supported by a plurality of vertically arranged back corrugated plates (16), the back corrugated plates (16) being annular and extending in a horizontal plane, and the vertical inner back corrugated plates (15) are pressed against the inner mold (2) through the back corrugated plates (16).

5. The structure for realizing rapid demoulding of a wind power hybrid tower according to claim 4, characterized in that: The back corrugated plate (16) is composed of a plurality of arc segments. The back corrugated plate (16) is a single-layer structure or a double-layer structure. Connecting plates (17) are fixed at both ends of each back corrugated plate (16). Adjacent back corrugated plates (16) are detachably connected by bolts penetrating the connecting plates (17).

6. The structure for realizing rapid demoulding of a wind power hybrid tower according to claim 3, characterized in that: The inner mold (2) is also provided with a construction platform (18) located above the transverse support rod (14); the construction platform (18) is honeycomb-shaped and has a passage opening (19) reserved thereon that can be opened and closed.

Images