Method of forming a mold, tower section

Abstract

The application relates to a forming method of a mold and a tower drum segment, which comprises the following steps: a segment mold unit is provided with a pouring cavity and an opening communicating with the pouring cavity, the pouring cavity is used for pouring slurry to form a tower drum segment; a positioning assembly is arranged on the segment mold unit, the positioning assembly comprises a protruding piece and a sealing piece arranged around the protruding piece, the protruding piece is arranged in the pouring cavity through the opening, the protruding piece is provided with a plug-in interface communicating with the pouring cavity, the sealing piece seals the gap between the protruding piece and the wall surface surrounding the opening, and the sealing piece is detachably connected with the segment mold unit; a plug-in component is arranged in the pouring cavity through the plug-in interface, the plug-in component has two opposite end portions, one end portion is overlapped on the protruding piece, and the other end portion is arranged through the segment mold unit to form a connecting hole on the tower drum segment. The mold provided by the embodiment of the application is easy to form and convenient to demold.

Description

Technical Field

[0001] This application relates to the field of wind power technology, and in particular to a molding method for forming molds and tower sections. Background Technology

[0002] Steel-concrete composite towers are a new type of tower introduced in the onshore wind power industry in recent years. The concrete towers are mostly prefabricated, and due to their large size, they are often manufactured in sections. Conventional concrete segments are usually cast vertically or horizontally.

[0003] Existing precast concrete segment molds are difficult to shape during manufacturing, and are prone to collision and deformation during demolding, which affects the number of times the mold can be reused and the precasting efficiency. They may also damage the segment body and affect the segment quality. Summary of the Invention

[0004] This application provides a molding method for forming a mold and a tower section, wherein the mold is easy to form and easy to demold.

[0005] On one hand, according to an embodiment of this application, a mold is proposed, comprising: a segmented mold unit having a casting cavity and an opening communicating with the casting cavity, the casting cavity being used to cast slurry to form tower segments; a positioning component disposed on the segmented mold unit, the positioning component including a protrusion and a sealing member disposed around the protrusion, the protrusion extending into the casting cavity through the opening, the protrusion having an insertion interface communicating with the casting cavity, the sealing member sealing the gap between the protrusion and the wall surrounding the opening and being detachably connected to the segmented mold unit; and a plug-in member extending into the casting cavity through the insertion interface, the plug-in member having two opposing ends, one end overlapping the protrusion and the other end penetrating through the segmented mold unit to form a connecting hole on the tower segment.

[0006] According to one aspect of the embodiments of this application, the seal is an annular plate-shaped structure, and the surface of the seal facing the segmented mold unit is an arc-shaped surface and fits into the segmented mold unit.

[0007] According to one aspect of the embodiments of this application, the positioning component further includes a plurality of connectors, which are spaced apart around the protrusion and respectively fixedly connected to the sealing member, and the sealing member is detachably connected to the segmented mold unit through the connectors.

[0008] According to one aspect of the embodiments of this application, one end of the plug-in member is detachably connected to the protrusion and the other end is detachably connected to the segmented mold unit.

[0009] According to one aspect of the embodiments of this application, the plug-in member is a rod with a predetermined length and is hollow or solid, and the cross-sectional dimension of the plug-in member gradually decreases from the end that mates with the protrusion to the end that mates with the segmented mold unit.

[0010] According to one aspect of the embodiments of this application, the number of segmented module units is two or more and they are connected in sequence, and at least one of the two adjacent segmented module units is provided with a positioning component and a plugging component that cooperate with each other.

[0011] According to one aspect of the embodiments of this application, in two or more segmented mold units, one of two adjacent segmented mold units is provided with a positioning component and a plug-in component that cooperate with each other. The mold also includes a pre-embedded part, which is disposed in the other of the two adjacent segmented mold units and is detachably connected to the plug-in component.

[0012] According to one aspect of the embodiments of this application, the plug-in member is a straight rod, and the embedded part is threadedly connected to the plug-in member.

[0013] According to one aspect of the embodiments of this application, each of two adjacent segmented module units in two or more segmented module units is provided with a positioning component and a plugging component that cooperate with each other, and the plugging component located in one of the two adjacent segmented module units is plugged into and cooperates with the plugging component in the other.

[0014] According to one aspect of the embodiments of this application, the plug-in member is an arc-shaped rod. One of the plug-in members located in two adjacent segmented module units is provided with a protrusion, and the other plug-in member is provided with a recess. The protrusion and the recess match in shape and are plugged in.

[0015] According to one aspect of the embodiments of this application, the segmented mold unit is generally arc-shaped. The segmented mold unit includes an inner mold, an outer mold, a top mold, a bottom mold, and an end mold that together enclose and form a casting cavity. The inner mold and the outer mold are arc-shaped pieces and are distributed at intervals in the radial direction of the segmented mold unit. The top mold and the bottom mold are distributed at intervals in the axial direction of the segmented mold unit and are respectively connected to the inner mold and the outer mold. The end mold is connected to the inner mold, the outer mold, the top mold, and the bottom mold. An opening is provided in the inner mold, and an insertable member is provided through the end mold.

[0016] According to one aspect of the embodiments of this application, the protrusion includes a curved panel and a sealing plate connected to the curved panel. The ends of the curved panel and the sealing plate facing each other are abutted together, and the ends of the curved panel and the sealing plate away from each other are respectively connected to a sealing element. The curved panel and the sealing plate together enclose an open groove that communicates with the outside of the segmented mold unit. An insertion interface is disposed on the sealing plate, and one end of the insertion member overlaps the sealing plate.

[0017] According to one aspect of the embodiments of this application, the mold further includes a pad, which is disposed on the side of the sealing plate away from the curved panel and is in contact with the sealing plate. An insertion interface is provided on the pad, and a plug-in component is disposed through the insertion interface through the pad. The portion of the segmented mold unit connected to the positioning component can be lifted along a first direction. In the axial direction of the segmented mold unit, the orthographic projection of the outermost edge of the curved panel away from the sealing plate extends along a second direction, and the orthographic projection of the surface of the pad away from the sealing plate extends along a third direction. The second direction and the third direction are located on both sides of the first direction and intersect the first direction respectively.

[0018] According to one aspect of the embodiments of this application, the pad and the sealing plate are detachably connected.

[0019] On the other hand, according to an embodiment of this application, a method for forming tower sections is proposed, including:

[0020] Provide molds, which are any of the above-mentioned molds;

[0021] Slurry is poured into the casting cavity of the segmented mold unit;

[0022] Solidified casting grout;

[0023] Separate the positioning components and plug-in components from the cured grout;

[0024] The segmented mold unit is separated from the cured casting material to form the tower segment.

[0025] According to another aspect of the embodiments of this application, in the step of providing the mold, the protrusion includes a curved panel and a sealing plate connected to the curved panel. The ends of the curved panel and the sealing plate facing each other are abutted together, and the ends of the curved panel and the sealing plate away from each other are respectively connected to a sealing member. An insertion interface is disposed on the sealing plate, and one end of the insertion member overlaps the sealing plate. The mold also includes a pad, which is disposed on the side of the sealing plate away from the curved panel and is in contact with the sealing plate. An insertion interface is disposed on the pad, and the insertion member is disposed through the insertion interface through the pad. The step of separating the positioning component and the insertion member from the segmented mold unit includes:

[0026] Remove the plug-in component and separate it from the positioning assembly, pad, and segmented module unit;

[0027] Disassemble the positioning assembly to separate the positioning assembly from at least a portion of the segmented module unit;

[0028] The positioning component is lifted along the first direction so that the positioning component itself or the whole formed by the positioning component and the pad is separated from the cured grout.

[0029] In the axial direction of the segmented module unit, the orthographic projection of the curved panel away from the outermost edge of the sealing plate extends along the second direction, and the orthographic projection of the pad away from the surface of the sealing plate extends along the third direction. The second direction and the third direction are located on both sides of the first direction and intersect with the first direction respectively.

[0030] The mold provided in this application embodiment allows for detachable connection between the positioning component and the segmented mold unit. This means that after the tower segments are formed, the positioning component and the segmented mold unit can be disassembled and separated first. The insertion component can be disassembled before or together with the positioning component. Then, the segmented mold unit can be separated from the formed tower segments, facilitating mold demolding. Furthermore, the protrusion of the positioning component extends into the casting cavity of the segmented mold unit. By separating the positioning component from the segmented mold unit, the forming of both the segmented mold unit and the positioning component is facilitated, reducing mold production costs. Simultaneously, the positioning component employs a combination of a protrusion and a sealing element, ensuring the sealing performance of the casting cavity, facilitating the forming of the tower segments, and satisfying the positioning of the insertion component, ensuring the formation of the connection hole. Furthermore, it facilitates the formation of grooves on the tower segments that match the shape of the protrusion, ensuring the easy assembly and disassembly of bolts and other fasteners used to connect adjacent tower segments in the connection hole during dry connection. Attached Figure Description

[0031] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0032] Figure 1 This is a schematic diagram of the structure of a wind turbine generator set in the existing technology;

[0033] Figure 2 for Figure 1 The diagram shows the structure of the tower.

[0034] Figure 3 This is an exploded view of a tower section in the prior art;

[0035] Figure 4 This is a partial structural diagram of a mold according to an embodiment of this application;

[0036] Figure 5 This is a schematic diagram of the structure of a positioning component according to an embodiment of this application;

[0037] Figure 6 This is a partial structural diagram of a mold according to another embodiment of this application;

[0038] Figure 7 This is a partial structural diagram of a mold according to another embodiment of this application;

[0039] Figure 8 This is an exploded view of a mold according to an embodiment of this application;

[0040] Figure 9 This is a partial structural schematic diagram of a mold according to another embodiment of this application;

[0041] Figure 10 This is a schematic flowchart illustrating a method for forming tower sections according to an embodiment of this application.

[0042] in:

[0043] 1-Tower;

[0044] 100 - Tower section; 10 - Tower segment;

[0045] 2-Nacelle; 3-Generator; 4-Impeller; 401-Hub; 402-Blade;

[0046] 5-Mold; 51-Segmented mold unit; 51a-Casting cavity; 511-Inner mold; 512-Outer mold; 513-Top mold; 514-Bottom mold; 515-End mold; 515a-Allowing hole;

[0047] 52-Positioning component; 521-Protrusion; 5211-Curved panel; 5212-Sealing plate; 5212a-Insertion interface; 522-Seal; 523-Connector;

[0048] 53-Plug-in component; 531-Protrusion; 532-Recess; 54-Embedded part; 55-Plate;

[0049] X - Axial direction; Y - Radial direction;

[0050] A - First direction; B - Second direction; C - Third direction.

[0051] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0052] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0053] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the molding method of the mold and tower sections of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0054] like Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a wind turbine generator set in the prior art. The wind turbine generator set mainly includes a tower 1, a nacelle 2, a generator 3, and a rotor 4. The tower 1 is connected to the wind turbine foundation, the nacelle 2 is located at the top of the tower 1, and the generator 3 is located on the nacelle 2. The generator 3 can be located outside the nacelle 2 to form a direct-drive wind turbine generator set. Of course, in some embodiments, the generator 3 can also be located outside the nacelle 2 to form a doubly-fed wind turbine generator set. The rotor 4 includes a hub 401 and multiple blades 402 connected to the hub 401. The rotor 4 is connected to the rotor of the generator 3 through its hub 401. When wind power acts on the blades 402, it drives the entire rotor 4 and the rotor of the generator to rotate, thereby meeting the power generation requirements of the wind turbine generator set.

[0055] like Figure 2 as well as Figure 3 As shown, Figure 2 for Figure 1 The schematic diagram of tower 1 shown indicates that tower 1 includes two or more tower sections 100. Figure 3 This is an exploded view of the tower section 100 in the prior art. Two or more tower sections 100 are coaxially arranged and adjacent tower sections 100 are connected to each other. The number of tower sections 100 included in the tower 1 can be determined according to the model of the wind turbine generator and the height of a single tower section 100. This application does not impose a specific quantity limit.

[0056] Since the nacelle 2, generator 3, and rotor 4 of the wind turbine are all supported on the tower 1, the load-bearing capacity of the tower 1 is subject to higher requirements when the wind turbine is taller or has a larger power output. The tower 1 needs to have a larger axial (X) dimension and a larger radial (Y) dimension. To meet the transportation requirements of the tower 1, at least a portion of the tower sections 100 need to be divided into tower segments 10. After transportation to the site, the tower segments 10 are first spliced ​​to form the corresponding tower sections 100, and then the tower sections 100 are stacked to form the tower 1.

[0057] In the traditional tower 1, the tower sections 10 of the tower section 100 are spliced ​​using a "wet connection" method, which involves connecting steel bars and injecting high-strength grout. This connection method results in low splicing efficiency between tower sections 10 and a large space occupation. Therefore, in order to improve splicing efficiency and reduce space requirements, the tower sections 10 of the tower section 100 are spliced ​​using a "dry connection" method. First, a space is reserved in the tower section 10 to connect two adjacent tower sections 10 with through bolts. After the casting is completed, the bolts and the components used to reserve the space are demolded and pulled out.

[0058] The existing molds used to form tower sections 10 that can be connected by "dry connection" have irregularly shaped components for reserving space that are difficult to form. Furthermore, after casting, the bolts and components for reserving space are difficult to remove from the mold, which affects the safety performance and forming efficiency of the tower sections 10.

[0059] Based on the above-mentioned technical problems, this application provides a new mold 5, which is easy to form, facilitates the casting of tower sections 10, and is easy to demold after casting.

[0060] like Figure 4 As shown, Figure 4 This is a partial structural diagram of a mold 5 according to an embodiment of this application. The mold 5 includes a segmented mold unit 51, a positioning component 52, and an insertion component 53. The segmented mold unit 51 has a casting cavity 51a and an opening communicating with the casting cavity 51a. The casting cavity 51a is used to cast slurry to form tower segments 10. The positioning component 52 is disposed on the segmented mold unit 51. The positioning component 52 includes a protrusion 521 and a sealing member 522 disposed around the protrusion 521. The protrusion 521 extends into the casting cavity 51a through the opening. The protrusion 521 is provided with an insertion interface 5212a communicating with the casting cavity 51a. The sealing member 522 is provided to seal the gap between the protrusion 521 and the wall surface surrounding the opening and is detachably connected to the segmented mold unit 51.

[0061] The plug-in member 53 extends into the casting cavity 51a through the plug-in interface 5212a. The plug-in member 53 has two opposing ends, one end of which overlaps with the protrusion 521 and the other end is disposed through the segmented mold unit 51 to form a connection hole on the tower segment 10.

[0062] The mold 5 provided in this application embodiment allows concrete to be poured into the casting cavities 51a of each segmented mold unit 51 during use. After the concrete solidifies, a tower segment 10 is formed in each casting cavity 51a. One end of the plug-in member 53 overlaps with the protrusion 521, and the other end passes through the segmented mold unit 51. After the concrete solidifies to the predetermined requirements, the plug-in member 53 is pulled out from the connection hole, forming a connection hole on the tower segment 10. When the formed tower segments 10 are connected to each other, bolts or other fasteners can be installed in the connection hole to connect adjacent tower segments 10.

[0063] The mold 5 provided in this embodiment allows for easy demolding of the mold 5. Since the positioning component 52 is detachably connected to the segmented mold unit 51, after the tower segment 10 is formed, the positioning component 52 can be disassembled and separated from the segmented mold unit 51 first. The insertion component 53 can be disassembled before the positioning component 52, or it can be disassembled together with the positioning component 52. Then, the segmented mold unit 51 can be separated from the formed tower segment 10, facilitating demolding. Furthermore, the protrusion 521 of the positioning component 52 extends into the casting cavity 51a of the segmented mold unit 51. By separating the positioning component 52 from the segmented mold unit 51, the forming of both the segmented mold unit 51 and the positioning component 52 is facilitated, reducing the production cost of the mold 5. Simultaneously, the positioning component 52 employs a combination of the protrusion 521 and the sealing component 522, ensuring the sealing performance of the casting cavity 51a, facilitating the forming of the tower segment 10, and satisfying the positioning of the insertion component 53, ensuring the formation of the connecting hole. Furthermore, it also facilitates the formation of grooves on the tower section 10 that match the shape of the protrusion 521, ensuring that the bolts and other fasteners used to connect two adjacent tower sections 10 can be installed and removed in the connection holes during dry connection.

[0064] Optionally, the plug-in component 53 can be a hollow or solid rod with a predetermined length. In some optional embodiments, it can be a straight screw. Using a straight screw improves the splicing and demolding efficiency of the segmented mold unit 51 during assembly and demolding. Furthermore, the portion of the segmented mold unit 51 used to accommodate the straight screw is a straight hole section, which is simple in structure and facilitates the forming of the tower segment 10 after casting. Simultaneously, when the plug-in component 53 includes a straight screw, the production precision of the tower segment 10 is reduced compared to using an arc bolt connection method. This effectively avoids subsequent installation problems caused by uneven misalignment or non-human movement of the plug-in component 53 during production. It also makes the plug-in component 53 easy to pull out or insert from the tower segment 10, facilitating the assembly and disassembly between adjacent segmented mold units 51. This eliminates the need for a quality-controlled "factory-based" production scheme for the tower segment 10.

[0065] In some alternative embodiments, the extension direction of the insert member 53 and the extension direction of the end face of the protrusion 521 can be perpendicular to each other. With the above arrangement, the contact area between the insert member 53 and the protrusion 521 can be increased, avoiding the risk of the protrusion 521 cracking and being damaged due to point contact between the insert member 53 and the protrusion 521. Moreover, this angle setting can improve the demolding efficiency of the insert member 53.

[0066] As an optional implementation, the mold 5 provided in this application embodiment can have multiple plug-in members 53 connecting two adjacent segmented mold units 51, and the multiple plug-in members 53 are spaced apart in the height direction of the tower section 100. By providing multiple plug-in members 53, the connection strength between the formed adjacent tower segments 10 can be guaranteed.

[0067] Accordingly, the mold 5 provided in this application embodiment also has multiple positioning components 52 for overlapping and inserting the components 53, and the multiple positioning components 52 are distributed at intervals in the height direction of the tower section 100. By setting multiple positioning components 52, insertion positions can be provided for the inserting components 53, which is beneficial to the forming of the tower section 10.

[0068] Please refer to Figure 4 as well as Figure 5 As an optional implementation, the mold 5 provided in this application embodiment has a sealing member 522 as an annular plate-shaped structure. The surface of the sealing member 522 facing the segmented mold unit 51 is an arc-shaped surface and fits into the segmented mold unit 51. By setting the sealing member 522 as an annular plate-shaped structure, the gap between the protrusion 521 and the wall surrounding the opening can be completely covered, ensuring the sealing of the casting cavity 51a and facilitating the formation of the tower segments 10. Furthermore, sufficient opening positions can be left so that the insertion member 53 can be inserted into and connected to the segmented mold unit 51 at this opening position, or the segmented mold unit 51 can be demolded and pulled out at this opening position after casting.

[0069] The surface of the seal 522 facing the segmented mold unit 51 is an arc-shaped surface, which can further enhance the contact and fit between the seal 522 and the wall surface that forms the opening, so that the surface of the seal 522 and the surface of the segmented mold unit 51 are located on the same surface.

[0070] As an optional implementation, the mold 5 provided in this application embodiment includes a positioning component 52 further comprising a plurality of connectors 523. The plurality of connectors 523 are spaced apart around the protrusion 521 and are respectively fixedly connected to the sealing member 522. The sealing member 522 is detachably connected to the segmented mold unit 51 through the connectors 523. By providing a plurality of connectors 523, the detachable connection and fixation of the sealing member 522 and the protrusion 521 to the segmented mold unit 51 can be facilitated.

[0071] Optionally, the connector 523 can be a plate-shaped structure with one end connected to the inner side of the segmented mold unit 51 and connected to the segmented mold unit 51, and the other end of the connector 523 is connected to the seal 522. The seal 522 and the segmented mold unit 51 can be detached and connected through the connector 523.

[0072] For example, the connector 523 and the seal 522 can be welded together. The protrusion 521, the seal 522, and the connector 523 can be connected as a whole. Each connector 523 can be provided with a through hole for threaded connection with the segmented molding unit 51, thereby detachably connecting the positioning assembly 52 to the segmented molding unit 51. The gap between the seal 522 and the segmented molding unit 51 can be sealed with a sealant, thereby allowing the positioning assembly 52 to be formed inside the segmented molding unit 51. The connector 523 and the segmented molding unit 51 can be connected by fasteners such as screws, making installation and removal more convenient.

[0073] As an optional implementation, one end of the plug-in member 53 is detachably connected to the protrusion 521, and the other end is detachably connected to the segmented mold unit 51. This arrangement facilitates the assembly and disassembly of the plug-in member 53. Furthermore, corresponding plug-in members 53 can be configured according to the dimensions of the desired tower section 100 and the connection strength requirements between adjacent segmented mold units 51, making the plug-in member 53 more versatile. The plug-in member 53 is detachably connected to both the protrusion 521 and the segmented mold unit 51, satisfying the demolding requirements of the plug-in member 53 after casting.

[0074] As an alternative implementation, the plug-in member 53 is a hollow or solid rod with a predetermined length, and the cross-sectional dimension of the plug-in member 53 gradually decreases from the end that mates with the protrusion 521 to the end that mates with the segmented mold unit 51.

[0075] The smaller side of the insert component 53 is inserted into the segmented mold unit 51, while the larger side overlaps the end that mates with the protrusion 521. After casting, the insert component 53 is pulled out from the insertion interface 5212a of the protrusion 521. This arrangement facilitates smooth demolding of the insert component 53 after casting. Furthermore, the surface of the insert component 53 can be polished to make it smooth. By rotating or shaking the insert component 53, one end can be pulled out slightly to allow it to detach before fully removing it, thus improving the demolding efficiency of the mold 5.

[0076] Continue to refer to Figure 4 as well as Figure 5 As an optional implementation, the mold 5 provided in this application embodiment has two or more segmented mold units 51 that are connected in sequence, and at least one of the two adjacent segmented mold units 51 is provided with a positioning component 52 and a plugging component 53 that cooperate with each other.

[0077] With the above setup, two or more tower sections 10 can be formed simultaneously. Furthermore, at least one of two adjacent section mold units 51 is provided with a cooperating positioning component 52 and a connecting component 53, with the connecting component 53 at least partially connected to the positioning component 52 and at least partially connected to the other section mold unit 51. During casting, the two adjacent section mold units 51 are connected and formed. After casting, the connecting component 53 is first rotated and removed along the direction close to the positioning component 52, and then the positioning component 52 is removed, thus smoothly demolding the mold 5. At this point, the cast tower section 10 can be lifted out to facilitate subsequent work by the staff.

[0078] As an optional implementation, one of two adjacent segmented mold units 51 is provided with a positioning component 52 and a plug-in component 53 that cooperate with each other. The mold 5 also includes a pre-embedded part 54, which is disposed on the other of the two adjacent segmented mold units 51 and is detachably connected to the plug-in component 53.

[0079] The mold 5 also includes a pre-embedded part 54. By adding the pre-embedded part 54, the connection area between the plug-in component 53 and the segmented mold unit 51 can be increased, and the connection strength with the segmented mold unit 51 can be improved. This ensures the connection strength between two adjacent segmented mold units 51 and avoids the risk of connection failure of two adjacent segmented mold units 51 due to the separation of the plug-in component 53 from the segmented mold unit 51. This improves the safety performance of the mold 5.

[0080] After the concrete pouring is completed, the plug-in component 53 is first disassembled from the embedded part 54 to detach it from the segmented mold unit 51 where the embedded part 54 is located. Then, the plug-in component 53 is removed from the opening to detach it from the segmented mold unit 51 where the positioning component 52 is located. Finally, all parts of the positioning component 52 are removed in this way to complete the demolding process. By adding a detachable connection between the embedded part 54 and the plug-in component 53, the plug-in component 53 can be pulled out more smoothly from the poured concrete, improving the demolding efficiency of the plug-in component 53.

[0081] Optionally, the plug-in member 53 is a straight rod, and the embedded part 54 is threadedly connected to the plug-in member 53. This arrangement ensures both the detachable connection between the plug-in member 53 and the embedded part 54, and facilitates their assembly and disassembly. It is understood that in some examples, the embedded part 54 can at least partially extend into the plug-in member 53 and be pressed together with it, as long as the required connection strength is maintained.

[0082] like Figure 6 As shown, Figure 6 This is a partial structural diagram of a mold 5 according to another embodiment of this application. In some optional embodiments, each of two or more adjacent segmented mold units 51 is provided with a mutually cooperating positioning component 52 and a plug-in component 53. The plug-in component 53 located in one of the two adjacent segmented mold units 51 is plugged into the plug-in component 53 in the other, which can strengthen the connection strength of the plug-in component 53, thereby improving the reliability of the mold 5. Furthermore, since the two plug-in components 53 are plugged into the contact surface of the two segmented mold units 51, the resistance during demolding is small, and the area obstructed by concrete is small, thereby improving the demolding efficiency of the mold 5.

[0083] Optionally, the plug-in member 53 can also be an arc-shaped rod. One of the two adjacent segmented module units 51 has a protrusion 531 on the plug-in member 53 and the other has a recess 532 on the plug-in member 53. The protrusion 531 and the recess 532 match in shape and are plugged in.

[0084] When two or more tower sections 10 are formed simultaneously, each of two adjacent sections 51 can be provided with a positioning component 52 and a plug-in component 53. The plug-in components 53 in the two adjacent sections 51 can be symmetrically distributed along the contact surface of the two adjacent sections 51. One end of the plug-in component 53 near the contact surface can be set as a protrusion 531, and the other end of the plug-in component 53 near the contact surface can be set as a concave part 532. The protrusion 531 and the concave part 532 match in shape and are plugged in. Through the above arrangement, the plug-in components 53 on the two adjacent sections 51 can be connected on the contact surface, and it is convenient to demold the plug-in components 53, ensuring the effectiveness of the mold 5.

[0085] The protrusion 531 can be triangular, quadrilateral or other shapes. Correspondingly, the concave part 532 is designed to match the shape of the protrusion 531 to prevent the insertion member 53 from rotating due to loose connection, thereby improving the connection strength of the insertion member 53 and thus improving the reliability of the mold 5.

[0086] As an alternative implementation, the plug-in member 53 is a hollow or solid rod with a predetermined length, and the cross-sectional dimension of the plug-in member 53 gradually increases from the end that mates with the protrusion 521 to the end that mates with the segmented mold unit 51.

[0087] like Figure 7 As shown, Figure 7 This is a partial structural diagram of mold 5 according to another embodiment of this application. When the tower section 10 is cast in sections, only one section mold unit 51 can be considered. One section mold unit 51 is provided with a positioning component 52 and a plug-in component 53 that cooperate with each other. One end of the plug-in component 53 overlaps with the protrusion 521, and the other end passes through the section mold unit 51 and is directly connected to the side of this section mold unit 51. At this time, the cross-sectional dimension of the plug-in component 53 gradually increases from the end that cooperates with the protrusion 521 to the end that cooperates with the section mold unit 51. After casting, the plug-in component 53 is pulled out from the side of the section mold unit 51. Through the above arrangement, it is easy to demold the plug-in component 53 smoothly after the section casting is completed. At the same time, the surface of the plug-in component 53 can be polished to make the surface of the plug-in component 53 smooth. By rotating or shaking the plug-in component 53, one end can be pulled out first to make the plug-in component 53 slightly detached before pulling it out, thereby improving the demolding efficiency of mold 5.

[0088] like Figure 8 As shown, Figure 8This is an exploded view of mold 5 according to one embodiment of this application. As an optional implementation, the segmented mold unit 51 is generally arc-shaped. The segmented mold unit 51 includes an inner mold 511, an outer mold 512, a top mold 513, a bottom mold 514, and an end mold 515 that together enclose and form a casting cavity 51a. The inner mold 511 and the outer mold 512 are arc-shaped pieces and are spaced apart in the radial Y direction of the segmented mold unit 51. The top mold 513 and the bottom mold 514 are spaced apart in the axial X direction of the segmented mold unit 51 and are respectively connected to the inner mold 511 and the outer mold 512. The end mold 515 is connected to the inner mold 511, the outer mold 512, the top mold 513, and the bottom mold 514. An opening is provided in the inner mold 511, and a connecting member 53 is provided through the end mold 515.

[0089] The segmented mold unit 51 adopts the above-described form, which has a simple structure and enables the groove of the formed tower segment 10 and the protrusion 521 to be matched in shape to be located on the inner wall of the tower segment 10. While ensuring the performance requirements of the tower segment 10, it can also ensure the protection of the plug-in component 53 used to connect two adjacent tower segments 10.

[0090] Optionally, the number of end molds 515 in the mold 5 provided in this application embodiment is not specifically limited. Each segmented mold unit 51 may include two end molds 515, or two adjacent segmented mold units 51 may share one end mold 515. Specifically, it can be set according to the number of tower segments 10 to be formed.

[0091] Since two adjacent segmented mold units 51 form a casting cavity 51a with the same vertical end mold 52, and the end mold 515 is clamped in the inner mold 511, outer mold 512, top mold 513, and bottom mold 514, it ensures that the concave and convex surfaces of the contact surfaces at the same cross-section are in contact during the casting stage, which is beneficial for the assembly stage. Its positioning mode results in high interlocking curves of the mating surfaces of two adjacent tower segments 10 after molding. Optionally, the end mold 515 is provided with a clearance hole 515a for the insertion component 53 to pass through.

[0092] Continue reading Figures 4 to 8 As shown, in one optional embodiment, the protrusion 521 includes a curved panel 5211 and a sealing plate 5212 connected to the curved panel 5211. The ends of the curved panel 5211 and the sealing plate 5212 facing each other are abutted together. The ends of the curved panel 5211 and the sealing plate 5212 away from each other are respectively connected to the sealing member 522. The curved panel 5211 and the sealing plate 5212 together form an open groove that communicates with the outside of the segmented mold unit 51. The insertion interface 5212a is provided on the sealing plate 5212, and one end of the insertion member 53 overlaps the sealing plate 5212.

[0093] By setting the curved panel 5211 and the sealing plate 5212, an open groove can be formed at the corresponding position of the segmented mold unit 51, which facilitates the removal and demolding of the plug-in member 53 during and after the formation of the segmented mold unit 51. The curved panel 5211 and the sealing plate 5212 can be detachably connected to facilitate the demolding of the protrusion 521.

[0094] For example, setting the height of the curved panel 5211 at one end near the sealing plate 5212 to be greater than the height at the other end can improve the demolding efficiency of the curved panel 5211. The sealing plate 5212 and the seal 522 can be arranged vertically to facilitate the insertion and removal of the plug-in component 53 for demolding.

[0095] like Figure 9 As shown, Figure 9 This is a partial structural schematic diagram of mold 5 according to another embodiment of the present application. In some optional embodiments, mold 5 further includes a pad 55. The pad 55 is disposed on the side of the sealing plate 5212 away from the curved panel 5211 and is in contact with the sealing plate 5212. An insertion interface 5212a is provided on the pad 55, and the insertion member 53 is disposed through the insertion interface 5212a through the pad 55.

[0096] Among them, the part of the segmented module unit 51 connected to the positioning component 52 can be lifted along the first direction A. On the axial direction X of the segmented module unit 51, the orthographic projection of the curved panel 5211 away from the outermost edge of the sealing plate 5212 extends along the second direction B, and the orthographic projection of the pad 55 away from the surface of the sealing plate 5212 extends along the third direction C. The second direction B and the third direction C are located on both sides of the first direction A and intersect the first direction A respectively.

[0097] Figure 9 In this context, α represents the angle between the direction in which the sealing plate 5212 extends away from the curved panel 5211 and the first direction A, β represents the angle between the second direction B and the first direction A, and γ represents the corrected angle, i.e., the angle between the third direction C and the first direction A.

[0098] When the mold 5 is installed, if angles α and β are both located on the same side of the first direction A, concrete will be poured within the γ angle range. This concrete will obstruct the removal of the insert component 53, thus preventing the mold 5 from being demolded. Therefore, adding a pad 55 can be used as an optional correction method. By using the pad 55, the outermost edge of the curved panel 5211 facing away from the sealing plate 5212 and the surface of the pad 55 facing away from the sealing plate 5212 are located on both sides of the first direction A, which is the lifting direction. This makes it easier to pull out the insert component 53 and the positioning component 52 for demolding, especially for horizontal molds 5, which facilitates the disassembly and assembly of the positioning component 52 and the connection between the segmented mold unit 51 and the positioning component 52.

[0099] Alternatively, during demolding, the pad 55 can be removed after the positioning assembly 52 is lifted out, or it can remain in the casting cavity 51a to become part of the tower section 10.

[0100] Optionally, the pad 55 and the sealing plate 5212 are detachably connected. Through the above settings, the detachable connection requirements and connection strength between the two can be guaranteed. Furthermore, pads 55 with different thicknesses and shapes can be selected to connect to the sealing plate 5212 according to different needs, making the mold 5 more versatile.

[0101] like Figure 10 As shown, Figure 10 This is a schematic flowchart of a tower segmentation forming method according to one embodiment of this application. In another aspect, this application also provides a tower segmentation 10 forming method, including the following steps:

[0102] S100. Provide mold 5, which may be one of the above embodiments;

[0103] S200, pour grout into the casting cavity 51a of the segmented mold unit 51;

[0104] S300, solidified casting grout;

[0105] S400, Separate the positioning component 52 and the plug-in component 53 from the cured casting grout;

[0106] S500: Separate the segmented mold unit 51 from the cured casting material to form the tower segment 10.

[0107] In step S100, the provided mold 5 can be one of the molds 5 mentioned in the above embodiments.

[0108] Optionally, in step S200, the grout poured into the casting cavity 51a can be concrete grout, or other grout liquid that can solidify to form the tower section 10 with a predetermined strength.

[0109] In step S300, the slurry is allowed to solidify to a state where it can be separated.

[0110] In step S400, the plug-in component 53 can be pulled out first, and then the various components of the positioning component 52 can be separated from the cured grout in sequence. Alternatively, the plug-in component 53 and the positioning component 52 can be separated from the segmented mold unit 51 simultaneously.

[0111] In step S500, the tower section 100 formed is separated into its individual tower segments 10 for easy transportation. After being transported to the predetermined location, the plug-in component 53 can be plugged into the corresponding tower segment 10 and connected to another tower segment 10.

[0112] The tower segment 10 forming method provided in this application embodiment, by executing steps S100 to S500, can form the tower segment 10 through the mold 5 provided in the above embodiments. The forming method is simple, not limited by factory buildings, etc., and the tower segment 10 is easy to demold after forming.

[0113] Optionally, in the step of providing mold 5, the protrusion 521 includes a curved panel 5211 and a sealing plate 5212 connected to the curved panel 5211. The ends of the curved panel 5211 and the sealing plate 5212 facing each other are abutted together. The ends of the curved panel 5211 and the sealing plate 5212 away from each other are respectively connected to the sealing member 522. The insertion interface 5212a is provided on the sealing plate 5212. One end of the insertion member 53 overlaps the sealing plate 5212. Mold 5 also includes a pad 55. The pad 55 is provided on the side of the sealing plate 5212 away from the curved panel 5211 and is in close contact with the sealing plate 5212. The insertion interface 5212a is provided on the pad 55. The insertion member 53 is provided through the insertion interface 5212a through the pad 55.

[0114] Step S400, which separates the positioning component 52 and the insertion component 53 from the segmented module unit 51, includes:

[0115] Remove the plug-in component 53 and separate it from the positioning component 52, the pad 55, and the segmented module unit 51.

[0116] Disassemble the positioning assembly 52 to separate at least a portion of the positioning assembly 52 from the segmented module unit 51.

[0117] The positioning component 52 is lifted along the first direction A so that the positioning component 52 itself or the whole formed by the positioning component 52 and the pad 55 is separated from the cured grout.

[0118] In the axial direction X of the segmented module unit 51, the orthographic projection of the curved panel 5211 away from the outermost edge of the sealing plate 5212 extends along the second direction B, and the orthographic projection of the pad 55 away from the surface of the sealing plate 5212 extends along the third direction C. The second direction B and the third direction C are located on both sides of the first direction A and intersect with the first direction A respectively.

[0119] With the above arrangement, the pad 55 can be used to make the outermost edge of the curved panel 5211 away from the sealing plate 5212 and the surface of the pad 55 away from the sealing plate 5212 located on both sides of the first direction A, that is, the lifting direction. This makes it easy to disassemble and assemble the insertion component 53 and the positioning component 52 of the mold 5. Especially for the horizontal mold 5, it is beneficial to disassemble and assemble the positioning component 52 and the part connecting the segmented mold unit 51 and the positioning component 52.

[0120] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A mould (5) characterised in that, The utility model relates to a kind of tower sectioning moulds, comprising: A segment mould unit (51) has a pouring cavity (51a) for pouring slurry to form a tower section (10) and an opening in communication with the pouring cavity (51a); A positioning assembly (52) is provided on the segment mould unit (51), and the positioning assembly (52) comprises a protruding piece (521) and a sealing piece (522) arranged around the protruding piece (521). The protruding piece (521) extends into the pouring cavity (51a) from the opening, and the protruding piece (521) is provided with a plug-in interface (5212a) in communication with the pouring cavity (51a). The sealing piece (522) seals the gap between the protruding piece (521) and the wall surface surrounding the opening and is detachably connected with the segment mould unit (51); A plug-in member (53) extends into the pouring cavity (51a) from the plug-in interface (5212a). The plug-in member (53) has two opposite ends, one of which is lapped on the protruding piece (521) and the other of which penetrates through the segment mould unit (51). The positioning assembly (52) and the plug-in member (53) can be separated from the solidified pouring slurry to form a connecting hole on the tower section (10).

2. The mold (5) according to claim 1, characterized in that The sealing piece (522) is an annular plate structure, and the surface of the sealing piece (522) facing the segment mould unit (51) is an arc surface and is attached to the segment mould unit (51).

3. The mold (5) according to claim 1, characterized in that The positioning assembly (52) further comprises a plurality of connecting pieces (523) arranged around the protruding piece (521) and fixedly connected to the sealing piece (522) respectively. The sealing piece (522) is detachably connected with the segment mould unit (51) through the connecting pieces (523).

4. The mold (5) according to claim 1, characterized in that One of the ends of the plug-in member (53) is detachably connected with the protruding piece (521), and the other end is detachably connected with the segment mould unit (51).

5. The mold (5) according to claim 1, characterized in that The plug-in member (53) is a rod with a predetermined length and is hollow or solid. The cross-sectional dimension of the plug-in member (53) gradually decreases from the end matched with the protruding piece (521) to the end matched with the segment mould unit (51).

6. The mold (5) according to claim 1, characterized in that The number of the segment mould units (51) is two or more and they are abutted in sequence. At least one of the two adjacent segment mould units (51) is provided with the positioning assembly (52) and the plug-in member (53) matched with each other.

7. The mold (5) according to claim 6, characterized in that The two or more segment mould units (51) are abutted in sequence. At least one of the two adjacent segment mould units (51) is provided with the positioning assembly (52) and the plug-in member (53) matched with each other. The mould (5) further comprises a pre-embedded piece (54) arranged on the other of the two adjacent segment mould units (51) and detachably connected with the plug-in member (53).

8. The mold (5) according to claim 7, characterized in that The plug-in member (53) is a straight linear rod, and the embedded part (54) is threadedly connected with the plug-in member (53).

9. The mold (5) according to claim 6, characterized in that The positioning assembly (52) and the plug-in member (53) are arranged on each of the two adjacent segmental mold units (51) and are matched with each other, and the plug-in member (53) in one of the two adjacent segmental mold units (51) is plugged into the plug-in member (53) in the other segmental mold unit (51).

10. The mold (5) according to claim 9, characterized in that The plug-in member (53) is an arc-shaped rod, a convex part (531) is arranged on the plug-in member (53) in one of the two adjacent segmental mold units (51), and a concave part (532) is arranged on the plug-in member (53) in the other segmental mold unit (51), the convex part (531) and the concave part (532) are matched in shape and are plugged into each other.

11. The mold (5) according to claim 1, characterized in that The segmental mold unit (51) is in an overall arc shape, and the segmental mold unit (51) comprises an inner mold (511), an outer mold (512), a top mold (513), a bottom mold (514), and an end mold (515) which jointly enclose the pouring cavity (51a), the inner mold (511) and the outer mold (512) are in an arc shape and are spaced apart in the radial direction (Y) of the segmental mold unit (51), the top mold (513) and the bottom mold (514) are spaced apart in the axial direction (X) of the segmental mold unit (51) and are connected with the inner mold (511) and the outer mold (512) respectively, the end mold (515) is connected with the inner mold (511), the outer mold (512), the top mold (513), and the bottom mold (514), the opening is arranged on the inner mold (511), and the plug-in member (53) penetrates through the end mold (515).

12. The mold (5) according to claim 1, characterized in that The convex part (521) comprises a curved plate (5211) and a sealing plate (5212) connected with the curved plate (5211), the curved plate (5211) and the sealing plate (5212) are opposite to each other at one end, the curved plate (5211) and the sealing plate (5212) are connected with the sealing member (522) at the other end respectively, the curved plate (5211) and the sealing plate (5212) jointly enclose an open slot which is in communication with the outside of the segmental mold unit (51), the plug-in port (5212a) is arranged on the sealing plate (5212), and one end of the plug-in member (53) is lapped on the sealing plate (5212).

13. The mold (5) according to claim 12, characterized in that The mold (5) further comprises a backing plate (55) which is arranged on the side of the sealing plate (5212) away from the curved plate (5211) and is attached to the sealing plate (5212), the plug-in port (5212a) is arranged on the backing plate (55), and the plug-in member (53) penetrates through the backing plate (55) through the plug-in port (5212a). The segment mold unit (51) is connected to the part of the positioning assembly (52) capable of being hoisted in the first direction (A), and in the axial direction (X) of the segment mold unit (51), the orthographic projection of the outermost edge of the curved plate (5211) away from the sealing plate (5212) extends in the second direction (B), the orthographic projection of the surface of the sealing plate (5212) away from the gasket plate (55) extends in the third direction (C), and the second direction (B) and the third direction (C) are located on both sides of the first direction (A) and intersect the first direction (A) respectively.

14. The mold (5) according to claim 13, characterized in that The gasket plate (55) and the sealing plate (5212) are detachably connected.

15. A method of forming a tower section (10) characterised by, Comprise: providing a mold (5), the mold (5) is the mold (5) as claimed in any one of claims 1 to 14; Pouring slurry into the pouring cavity (51a) of the segment mold unit (51); Solidify the poured slurry; Separate the positioning assembly (52) and the plug-in member (53) from the solidified poured slurry; Separate the segment mold unit (51) from the solidified poured slurry to form the tower section (10).

16. The method of forming a tower section (10) according to claim 15, wherein, In the step of providing the mold (5), the protruding piece (521) comprises a curved plate (5211) and a sealing plate (5212) connected with the curved plate (5211), the curved plate (5211) and the sealing plate (5212) face each other at one end, the curved plate (5211) and the sealing plate (5212) are respectively connected with the sealing piece (522) at the other end away from each other, the plug-in port (5212a) is arranged on the sealing plate (5212), one end of the plug-in member (53) is overlapped on the sealing plate (5212), the mold (5) further comprises a gasket plate (55), the gasket plate (55) is arranged on the side of the sealing plate (5212) away from the curved plate (5211) and is in close contact with the sealing plate (5212), the plug-in port (5212a) is arranged on the gasket plate (55), and the plug-in member (53) is arranged through the gasket plate (55) through the plug-in port (5212a); The step of separating the positioning assembly (52) and the plug-in member (53) from the segment mold unit (51) comprises: Take out the plug-in member (53) and separate it from the positioning assembly (52), the gasket plate (55) and the segment mold unit (51); Dismount the positioning assembly (52) to separate the positioning assembly (52) from at least part of the segment mold unit (51); Hoist the positioning assembly (52) in the first direction (A) to separate the positioning assembly (52) itself or the whole formed by the positioning assembly (52) and the gasket plate (55) from the solidified poured slurry; In the axial direction (X) of the segment mold unit (51), a normal projection of the curved surface plate (5211) away from the outermost edge of the sealing plate (5212) extends in a second direction (B), a normal projection of the gasket plate (55) away from the surface of the sealing plate (5212) extends in a third direction (C), and the second direction (B) and the third direction (C) are located on both sides of the first direction (A) and are arranged to intersect the first direction (A) respectively.

17. A tower characterized in that The tower includes two or more coaxially arranged tower cylinder segments (100), and the tower cylinder segments (100) include tower cylinder segments (10) made by the mold (5) of any one of claims 1 to 14 or made by the forming method of the tower cylinder segments (10) of claim 15 or 16.

18. A wind power unit, characterized in that The wind turbine generator set includes the tower of claim 17.

Images