Lying mold of wind power concrete tower duct piece

Abstract

The utility model discloses a laying die of a wind power concrete tower segment, which comprises a die support, a die body used for producing the tower segment is arranged on the die support, the cavity and the appearance of the die body are matched with the appearance of the tower segment, and the die body and the tower segment are both fan-shaped. The circumferential end face of one side of the mold body is a pouring opening and is higher than the circumferential end face of the other side of the mold body. Through a new duct piece manufacturing mode, natural characteristics in the concrete solidification process are utilized, and the uniformity of loaded planes at the two ends of the duct piece is improved, so that the manufacturing quality is improved, the inner and outer surface quality problems caused by exhaust are reduced, and the apparent quality of the inner and outer surfaces, especially the outer surface quality, is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lying mould of wind power concrete tower pipe piece belongs to wind power tower manufacturing technical field. BACKGROUND

[0002] The segmented tower cylinder is composed of a plurality of prefabricated tower cylinder segments, each of which is prefabricated in a factory and then transported to a wind farm for on-site assembly. The originally integrated tower cylinder is divided into several parts, and the multiple tower pipe pieces are circumferentially spliced into a ring, which can manufacture a larger diameter tower cylinder without increasing the transportation difficulty, thereby supporting a larger power wind turbine and adapting to different wind speed and terrain conditions.

[0003] The conventional concrete pipe piece is manufactured by a vertical or horizontal mould, and the formed pipe piece is combined into a cylindrical shell to finally form a complete tower. However, in the vertical mould concrete forming process, if the exhaust is not smooth, bubbles or voids will be formed on the axial splicing surface of the concrete. These bubbles or voids will reduce the effective bearing area of the concrete, thereby affecting the bearing capacity of the bearing surface. When the horizontal mould is used, the bubbles or voids will be located on the inner and outer surfaces of the tower pipe piece, resulting in a low apparent quality of the outer surface of the tower pipe piece. SUMMARY

[0004] The utility model aims at the above-mentioned problems, provides a lying mould of wind power concrete tower pipe piece, adopts new mould to synchronously improve two key points, and obviously improves the acceptance degree of the tower.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A lying mould of wind power concrete tower pipe piece, comprising a mould support, a mould body for producing a tower pipe piece is arranged on the mould support, the cavity and the shape of the mould body are matched with the shape of the tower pipe piece, and are all sector shapes, and the circumferential end face of one side of the mould body is a pouring opening and is higher than the circumferential end face of the other side.

[0007] Optionally, the mould body comprises a bottom mould corresponding to the outer diameter surface of the tower pipe piece, an inner mould corresponding to the inner diameter surface of the tower pipe piece, side moulds corresponding to the axial two end surfaces of the tower pipe piece, and a lower sealing mould and an upper sealing mould corresponding to the circumferential two side surfaces of the tower pipe piece, respectively, and the upper sealing mould is located at the highest position of the mould body.

[0008] Optionally, the upper sealing mould is detachably connected with the bottom mould, the inner mould and the side mould.

[0009] Optionally, the bottom mould is fixedly connected with the mould support.

[0010] Optionally, the inner mould is detachably connected with the upper sealing mould, the bottom mould and the side mould.

[0011] Alternatively, the inner mold is one piece or is spliced into multiple pieces.

[0012] Alternatively, the inner mold is hinged to the mold support.

[0013] Alternatively, the inner mold is flipped open downward.

[0014] Alternatively, the radially inner side of the inner mold is provided with a grid reinforcing rib.

[0015] Alternatively, the lower sealing mold is the lowest point of the mold body; and / or, the upper sealing mold is the highest point of the mold body.

[0016] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present application are:

[0017] The lying mold for the wind power concrete tower segment provided by the present application has the same load bearing quality on the upper and lower load bearing planes of the segment product due to the same influence of gravity on the two positions of the side mold. The outside and inside of the segment will not produce unsmooth marks due to the exhaust from low to high. The bubbles rise to the upper sealing position of the pouring opening, and this surface is the side surface of the segment product and is a non-important surface with small load, which is hidden after simple repair and glue processing, and does not affect the appearance. Through the new segment manufacturing method, the natural characteristics in the concrete solidification process are utilized to improve the uniformity of the load planes at both ends of the segment, thereby improving the manufacturing quality, reducing the quality problems of the inner and outer surfaces caused by exhaust, improving the apparent quality of the inner and outer surfaces, and especially the outer surface quality. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is a structural schematic diagram of the present application.

[0019] Fig. 2 is a schematic diagram of the opening of the inner mold.

[0020] Fig. 3 is a schematic diagram of the opening of the upper sealing mold.

[0021] Markings in the figure: 1-mold support, 2-bottom mold, 3-inner mold, 4-side mold, 5-lower sealing mold, 6-upper sealing mold, 7-grid reinforcing rib. DETAILED DESCRIPTION

[0022] The present application will be described in detail below with reference to the accompanying drawings.

[0023] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0024] A type of horizontal mold for wind turbine concrete tower segments, such as Figs. 1-3 As shown, it includes a mold support 1, on which a mold body for producing tower tube segments is provided. The cavity and shape of the mold body match the shape of the tower tube segments and are both fan-shaped. One circumferential end face of the mold body is a pouring port and is higher than the other circumferential end face.

[0025] During concrete pouring, air bubbles and lighter components naturally rise due to gravity. In a horizontal mold, the circumferential end face of the mold body is the highest point, which is the path for the rising air bubbles. As the air bubbles rise in the concrete, they tend to accumulate on this surface. This ensures a denser axial bearing surface for the tower segments, thereby reducing defects on critical surfaces and improving the load-bearing capacity and structural strength of the tower segments. Fewer air bubbles on the main visible surfaces of the tower segments result in a smoother, more uniform appearance, improving the product's aesthetic quality. The tower segments are fan-shaped, and the circumferential end faces are the axial end faces of the fan-shaped segments.

[0026] In another specific embodiment, the mold body includes a bottom mold 2 corresponding to the outer diameter surface of the tower tube segment, an inner mold 3 corresponding to the inner diameter surface of the tower tube segment, side molds 4 corresponding to the axial end faces of the tower tube segment, and a lower sealing mold 5 and an upper sealing mold 6 corresponding to the two circumferential side faces of the tower tube segment, respectively. The upper sealing mold 6 is located at the highest point of the mold body. The combination of the bottom mold 2, inner mold 3, side molds 4, lower sealing mold 5, and upper sealing mold 6 ensures that the produced tower tube segments have precise dimensions and shapes. Concrete can be poured from one end, then flows within the mold and fills the entire space, finally being sealed by the upper sealing mold 6. Because the upper sealing mold 6 is located at the highest point of the mold, air bubbles in the concrete will rise with the rising concrete during the pouring process, and may eventually be discharged or accumulate near the upper sealing mold 6, i.e., the circumferential end face of the tower tube segment.

[0027] In another specific embodiment, the upper sealing mold 6 is detachably connected to the bottom mold 2, inner mold 3, and side mold 4. This detachable connection makes the installation and removal of the upper sealing mold 6 more convenient. When the upper sealing mold 6 is disassembled, the opening serves as a pouring port. Furthermore, the detachable design allows for fine-tuning of the upper sealing mold 6 during installation, ensuring a tight fit between the sealing portion and the mold body, reducing overflow and leakage during concrete pouring, and guaranteeing the dimensional accuracy and surface quality of the tower segments.

[0028] In another specific embodiment, the bottom mold 2 is fixedly connected to the mold support 1. This fixed connection ensures that the bottom mold 2 remains stable during concrete pouring and will not move due to external forces or the pressure of the concrete during pouring, thus guaranteeing the dimensional accuracy and shape consistency of the tower segments. It also helps to evenly distribute the forces generated during concrete pouring onto the mold support 1, reducing localized stress concentration and improving the service life of the mold.

[0029] As another specific embodiment, the inner mold 3 is one-piece or spliced into multiple pieces. The one-piece inner mold 3 has no joints, strong structural integrity, and is not easy to deform, which is beneficial to ensure the dimensional accuracy and surface finish of the tower segment. The installation process is simple, and there is no need for complex splicing, saving installation time. The multi-piece inner mold 3 can produce tower segments of different diameters or shapes as needed, which can be achieved by splicing different numbers of piece-shaped inner molds 3. It is more convenient to manufacture, transport and install. If a piece of inner mold 3 is damaged, it can be replaced individually without the need for overall replacement, reducing maintenance costs.

[0030] As another specific embodiment, the inner mold 3 is detachably connected with the upper sealing mold 6, the bottom mold 2 and the side mold 4. The inner mold 3 has a large area, and the detachable inner mold 3 can be easily opened, making the operation of placing the reinforcement cage more flexible and convenient. After the concrete hardens, the inner mold 3 can be quickly detached, and the manufactured segment can be easily removed.

[0031] As another specific embodiment, the inner mold 3 is hinged to the mold support 1. The hinged structure allows the inner mold 3 to rotate relative to the mold support 1, making it more convenient to install and remove the inner mold 3.

[0032] As another specific embodiment, the inner mold 3 is opened by turning down. The inner mold 3 rotates along the length direction of the lower sealing mold 5 as an axis. The downward turning opening does not require additional side space, and compared with the side or vertical opening method, the downward turning is generally more intuitive and simple to operate, reducing the complexity of the operation. Due to the action of gravity, the concrete tower segment is more easily separated from the inner mold 3 during the downward turning process, improving the demolding efficiency.

[0033] As another specific embodiment, the inner mold 3 is provided with a grid reinforcing rib 7 on the radial inner side. The radial inner side is the side opposite to the pouring space, and the grid reinforcing rib 7 can significantly improve the overall strength and stability of the inner mold 3, so that it can better withstand pressure during concrete pouring and prevent deformation. Effectively distribute the stress generated during concrete pouring to the entire inner mold 3, reducing local stress concentration, thereby improving the quality of the tower segment.

[0034] As another specific embodiment, the lower sealing die 5 is the lowest point of the mold body; and / or, the upper sealing die 6 is the highest point of the mold body. The lower lower sealing die 5 at the lowest point allows the concrete to be directly poured from above, naturally sinking by gravity, and the concrete does not need to move upward again, so it is easier to fill the entire mold. This design reduces the possibility of voids at the bottom of the mold and ensures that the bottom of the mold is evenly filled. The upper sealing die 6 at the highest point acts as an exhaust passage, allowing air bubbles in the concrete to rise smoothly to the top of the mold and be discharged, thereby reducing air bubbles and voids inside the concrete. And the bubbles and excess material can be discharged from the exhaust port, reducing surface irregularities and honeycomb phenomenon. It helps to reduce the surface finishing work after the concrete is poured.

[0035] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. The present application extends to any new features or any new combinations disclosed in the specification, and any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the technical features not disclosed in the present embodiments, such as specific structures, connection modes, etc., can be obtained from the prior art by those skilled in the art, and the present disclosure does not specifically limit them.

Claims

1. A horizontal mold for a windmill concrete tower segment, characterized in that: The mold support (1) is provided with a mold body for producing a tower pipe piece, the cavity and the shape of the mold body match the shape of the tower pipe piece, and the shape of the mold body is a fan-shaped piece.

2. The horizontal mold for a windmill concrete tower segment according to claim 1, characterized in that: The mold body includes a bottom mold (2) corresponding to the outer diameter surface of the tower pipe piece, an inner mold (3) corresponding to the inner diameter surface of the tower pipe piece, side molds (4) corresponding to the axial end surfaces of the tower pipe piece, and lower sealing molds (5) and upper sealing molds (6) corresponding to the circumferential side surfaces of the tower pipe piece, respectively.

3. The horizontal mold for a windmill concrete tower segment according to claim 2, characterized in that: The upper sealing mold (6) is detachably connected with the bottom mold (2), the inner mold (3) and the side mold (4).

4. The horizontal mold for a windmill concrete tower segment as claimed in claim 2, characterized in that: The bottom mold (2) is fixedly connected with the mold support (1).

5. The horizontal mold for a windmill concrete tower segment as claimed in claim 2, characterized in that: The inner mold (3) is detachably connected with the upper sealing mold (6), the bottom mold (2) and the side mold (4).

6. The horizontal mold for a windmill concrete tower segment according to claim 5, characterized in that: The inner mold (3) is a one-piece type or a multi-piece type spliced into one piece.

7. The horizontal mold for a windmill concrete tower segment of claim 5, wherein: The inner mold (3) is hinged to the mold support (1).

8. The horizontal mold for a windmill concrete tower segment according to claim 7, characterized in that: The inner mold (3) is opened by being turned down.

9. The horizontal mold for a windmill concrete tower segment of claim 2, wherein: The radially inner side surface of the inner mold (3) is provided with a grid reinforcing rib (7).

10. The horizontal mold for a windmill concrete tower segment of claim 2, wherein: The lower sealing mold (5) is the lowest point of the mold body; and / or, the upper sealing mold (6) is the highest point of the mold body.

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