Wind power hybrid cylinder section bottom die

Abstract

The utility model relates to wind power generation technical field especially relates to wind power hybrid type section of tube bottom die, it includes: mixed bottom die, be provided with die outer die and die inner die on the mixed bottom die, the mixed bottom die includes a pair of formwork bottom adjusting support and lower concrete bottom die, the die outer die and die inner die are located formwork bottom adjusting support, be provided with upper steel bottom die on the lower concrete bottom die, be provided with adjusting steel sheet on formwork bottom adjusting support, the utility model discloses through setting lower concrete bottom die, utilize pre -buried pair of steel pipes, double -end stud screw rod pair of screw rod, gasket and high -strength nut cooperation, for die outer die and die inner die bottom provide firm connection, effectively prevent pouring section of tube bottom die to open, secondly, the recess one of steel bottom die lower support top can accurately fix the connecting end plate of two two split moulds that link to each other, ensure that the upper steel bottom die position is accurate and stable, lay the foundation for the stability of upper steel bottom die.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, and in particular to a wind power hybrid cylindrical bottom mold. Background Technology

[0002] The bottom mold of the wind turbine hybrid cylinder is a mold used to pour concrete cylinders at the bottom of the hybrid tower structure in wind power generation. It is usually made of steel and supports the upper steel tower.

[0003] However, the connection stability of the components in the traditional wind turbine hybrid cylindrical bottom formwork is poor. During subsequent use, the components are prone to displacement, and the overall structural strength is insufficient, making it difficult to withstand various external forces during construction and easily damaged. Secondly, the traditional bottom formwork cannot be quickly adapted to the production requirements of cylindrical sections of different sizes, and the height adjustment of the outer and inner molds is difficult, making it difficult to meet diverse construction requirements and reducing the versatility of the equipment. In addition, during bottom pouring, the traditional bottom formwork is difficult to effectively prevent the cylindrical bottom formwork from expanding, and there is a lack of fine adjustment means for the levelness of the top of the outer and inner molds, making it difficult to ensure the flatness of the overall structure.

[0004] Prior art 1 (Chinese patent application number CN201921639469.4, application date 2019-09-28) discloses a concrete tower bottom mold, including a truncated cone mold body, a sitting mold body set at the bottom of the truncated cone mold body, a fixing ring groove set on the upper surface of the truncated cone mold body, and a side plate fixing member set in the fixing ring groove, which can provide a stable sitting support force for the concrete tower and ensure that the concrete tower has sufficient stress strength during use.

[0005] Prior art 2 (Chinese patent application number CN2019200899283.X, application date 2019-01-18) discloses a prefabricated wind turbine tower base platform, including a base, with embedded plates evenly distributed on the upper surface of the base. The lower ends of the embedded plates are symmetrically welded with outwardly curved hooks that extend into the interior of the base. A base plate support is installed on the upper surface of the embedded plates. Inner mold positioning bolts are symmetrically installed on both sides of the base plate support near the circular end of the embedded plates, and outer mold positioning bolts are symmetrically installed on both sides of the other end of the base plate support. The structure is reasonable, safe, and reliable. The level of the base mold can be measured with a level instrument, and the level of the prefabricated tower base mold can be adjusted in real time. The inner and outer mold positioning bolts not only fix the base plate support but also determine the installation positions of the inner and outer mold plates. Utility Model Content

[0006] The purpose of this invention is to provide a wind power hybrid cylindrical bottom mold to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: it includes a mixed bottom mold, on which an outer mold and an inner mold are provided. The mixed bottom mold includes several pairs of template bottom adjustment supports and a lower concrete bottom mold. The outer mold and the inner mold are located on the template bottom adjustment supports. An upper steel bottom mold is provided on the lower concrete bottom mold. An adjustment steel plate is provided on the template bottom adjustment supports.

[0008] As a preferred embodiment of this utility model, the lower concrete bottom formwork includes several steel bottom formwork supports, each of which has a pre-embedded through steel pipe running through its middle, and each of which has a groove at its top.

[0009] As a preferred embodiment of this utility model, a double-headed stud through-through screw is provided in the middle of the pre-embedded through-through steel pipe, and washers are provided on the outer wall of the outer mold and the inner wall of the inner mold corresponding to the position of the double-headed stud through-through screw. Both ends of the double-headed stud through-through screw are connected to the washers by high-strength nuts.

[0010] As a preferred embodiment of this utility model, the upper steel bottom mold includes several segmented molds, each segmented mold has a connecting end plate on both sides, the connecting end plates of two connected segmented molds are located in a groove, and a pair of high-strength connecting bolts are provided between the connecting end plates of two connected segmented molds.

[0011] As a preferred embodiment of this utility model, each of the segmented molds is provided with several L-shaped mounting seats at its bottom, and each of the L-shaped mounting seats is provided with anchor bolts.

[0012] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0013] This invention utilizes a lower concrete bottom mold, employing pre-embedded through-hole steel pipes, double-ended studs, through-hole bolts, washers, and high-strength nuts to provide a secure connection between the bottom of the outer and inner mold sections. This effectively prevents the bottom mold sections from expanding during pouring, ensuring the structural stability of the mold during construction. Secondly, the groove at the top of the lower support of the steel bottom mold precisely fixes the connecting end plates of the two connected mold sections, ensuring the accurate and stable position of the upper steel bottom mold and laying a solid foundation for its stability. Furthermore, the adjustable support at the bottom of the template allows for height adjustment of the outer and inner mold sections, flexibly adapting to different construction needs and increasing the equipment's versatility and practicality. Finally, during the pouring process, multiple re-measurements and timely adjustments to the levelness of the upper surface of the upper steel bottom mold ensure the overall structural flatness, contributing to improved final product quality.

[0014] This utility model features an upper steel bottom mold composed of several segmented molds. The assembly method allows for the production of cylinder sections of varying sizes, enhancing the mold's adaptability and flexibility. Secondly, the connecting end plates of two adjacent segmented molds are connected by high-strength bolts, improving the reliability of the connection and ensuring the integrity of the upper steel bottom mold. This allows it to withstand various external forces during construction without easily being damaged. Furthermore, the L-shaped mounting base and anchor bolts at the bottom of each segmented mold securely connect the upper steel bottom mold to the lower concrete bottom mold, preventing displacement during construction and ensuring the mold's installation accuracy and stability. This provides a reliable guarantee for the successful production of cylinder sections. Finally, the outer and inner molds are placed on top of the bottom adjusting support of the template. Adjusting steel plates of different specifications can be used to finely adjust the levelness of the top surfaces of the outer and inner molds. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the hybrid bottom mold structure of this utility model;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the gasket structure in the lower concrete bottom formwork of this utility model;

[0019] Figure 5 This is a schematic diagram of the lower support structure of the steel bottom formwork in the lower concrete bottom formwork of this utility model;

[0020] Figure 6 This is a schematic diagram of the upper steel bottom mold structure of this utility model;

[0021] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0022] Figure 8 This is a schematic diagram of the segmented mold structure in the upper steel bottom mold of this utility model;

[0023] Figure 9 This is a schematic diagram of the adjusting steel plate structure of this utility model.

[0024] Figure reference numerals: 1. Mixed bottom mold; 2. Outer mold; 3. Inner mold; 4. Bottom adjustment support of template; 5. Lower concrete bottom mold; 51. Lower support of steel bottom mold; 52. Embedded through-hole steel pipe; 53. Double-ended stud through-hole bolt; 54. Washer; 55. Groove 1; 56. High-strength nut; 6. Upper steel bottom mold; 61. Segmented mold; 62. Connecting end plate; 63. High-strength connecting bolt; 64. Anchor bolt; 65. L-shaped mounting base; 7. Adjusting steel plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0026] like Figures 1-9 As shown, the wind power hybrid cylindrical bottom mold proposed in this utility model includes a hybrid bottom mold 1, on which an outer mold 2 and an inner mold 3 are provided. The hybrid bottom mold 1 includes several pairs of template bottom adjustment supports 4 and a lower concrete bottom mold 5. The template bottom adjustment supports 4 can adjust the height of the outer mold 2 and the inner mold 3 to adapt to different construction needs. The outer mold 2 and the inner mold 3 are located on the template bottom adjustment supports 4. An upper steel bottom mold 6 is provided on the lower concrete bottom mold 5. An adjustment steel plate 7 is provided on the template bottom adjustment supports 4. The adjustment steel plate 7 is used to finely adjust the levelness of the top end face of the outer mold 2 and the inner mold 3 to ensure the installation accuracy of the mold.

[0027] The lower concrete bottom formwork 5 includes several steel bottom formwork supports 51, which support the upper steel bottom formwork 6. Each steel bottom formwork support 51 has a pre-embedded through steel pipe 52 running through its middle. The pre-embedded through steel pipe 52 provides an installation channel for the double-headed stud through bolt 53, which facilitates the subsequent connection and fixation of the bottom of the cylindrical mold section. Each steel bottom formwork support 51 has a groove 55 on its top. The groove 55 can fix the connecting end plate 62 of the two connected segment molds 61, ensuring that the upper steel bottom formwork 6 is accurately and stably positioned.

[0028] A double-ended studded through-hole screw 53 is installed in the middle of the pre-embedded through-hole steel pipe 52. The double-ended studded through-hole screw 53 passes through the pre-embedded through-hole steel pipe 52 and connects the bottom of the outer mold 2 and the inner mold 3 of the mold to prevent the bottom mold of the cylinder section from expanding during pouring. Gaskets 54 are provided on the outer wall of the outer mold 2 and the inner wall of the inner mold 3 at the positions corresponding to the double-ended studded through-hole screw 53. The gaskets 54 can increase the contact area, disperse pressure, protect the mold surface, and enhance the connection stability. Both ends of the double-ended studded through-hole screw 53 are connected to the gaskets 54 by high-strength nuts 56. The high-strength nuts 56 cooperate with the double-ended studded through-hole screw 53 to achieve a firm connection between the bottom of the outer mold 2 and the inner mold 3 of the mold through bidirectional fastening.

[0029] The upper steel bottom mold 6 includes several segmented molds 61. The segmented molds 61 are combined to form the upper steel bottom mold 6. By splicing, it can meet the manufacturing requirements of different sized cylinder sections. Each segmented mold 61 has a connecting end plate 62 on both sides. The connecting end plate 62 of two connected segmented molds 61 is located in the groove 55. The connecting end plate 62 provides a connection part for the high-strength connecting bolt 63, realizing reliable splicing between the segmented molds 61. A pair of high-strength connecting bolts 63 are provided between the connecting end plates 62 of two connected segmented molds 61. The high-strength connecting bolts 63 connect the connecting end plates 62 of adjacent segmented molds 61. The opposite connection method enhances the connection reliability and ensures the integrity of the upper steel bottom mold 6.

[0030] Each segmented mold 61 has several L-shaped mounting seats 65 at its bottom. The L-shaped mounting seats 65 provide installation positions for anchor bolts 64, enhancing the anchoring connection between the upper steel bottom mold 6 and the lower concrete bottom mold 5. Each L-shaped mounting seat 65 is equipped with an anchor bolt 64, which can firmly connect the upper steel bottom mold 6 and the lower concrete bottom mold 5, preventing the upper steel bottom mold 6 from shifting during construction.

[0031] Working principle: The operator first arranges several steel bottom mold supports 51 according to the design location requirements. Then, the operator begins to assemble the segmented molds 61, joining several segmented molds 61 to form the upper steel bottom mold 6. During the assembly process, high-strength connecting bolts 63 are used to fix the two connected segmented molds 61 together. Furthermore, the high-strength connecting bolts 63 at both ends of a single segmented mold 61 are connected in opposite directions; that is, the high-strength connecting bolts 63 on the left end plate 62 are screwed in to the right, and the high-strength connecting bolts 63 on the right end plate 62 are screwed in to the left. This enhances the reliability of the connection between the segmented molds 61, completing the assembly of the segmented mold 61. After assembly, the upper steel bottom mold 6 is placed on the pre-arranged lower supports 51 of several steel bottom molds. The connecting end plates 62 of the two connected segment molds 61 are located in the grooves 55 at the top of the lower supports 51 of the steel bottom molds. This not only fixes the segment molds 61 but also provides support for the overall upper steel bottom mold 6. Next, a laser instrument is used to measure the levelness of the upper surface of the upper steel bottom mold 6 to ensure that its flatness meets the requirements. At the same time, anchor bolts 64 are installed on the L-shaped mounting seats 65 set at the bottom of each segment mold 61 to prepare for enhancing the overall anchoring connection of the upper steel bottom mold 6 when the lower concrete bottom mold 5 is poured later.

[0032] Next, various preparatory work is carried out before pouring the lower concrete formwork 5. The operator sets up the corresponding concrete formwork pouring mold, installs the pre-embedded through steel pipes 52 in the middle of the support 51 under each steel formwork, and arranges several pairs of bottom adjustment supports 4 according to the design requirements. The bottom adjustment supports 4 of the formwork need to penetrate 5cm into the concrete and protrude 25cm, and be firmly fixed in advance with expansion bolts. After completing these preparatory work, the pouring of the lower concrete formwork 5 can be carried out. During the grouting and pouring process of the lower concrete formwork 5, the operator must re-measure the levelness of the upper surface of the upper steel formwork 6. If any deviation is found, it must be adjusted in time. After the strength of the lower concrete formwork 5 reaches the design requirements, the levelness of the upper part of the upper steel formwork 6 is re-measured to ensure that it meets the requirements for subsequent pouring. Construction requirements stipulate that once the upper steel bottom mold 6 meets the level requirements, the cylindrical mold section can be assembled. The outer mold 2 and the inner mold 3 are placed on the upper part of the bottom adjusting support 4 of the template. By placing adjusting steel plates 7 of different specifications, the levelness of the top end face of the outer mold 2 and the inner mold 3 is finely adjusted. At the same time, several double-ended studs and through-bolts 53 are used to connect and fix the bottom of the cylindrical mold section. The double-ended studs and through-bolts 53 are located inside the pre-embedded through-steel pipe 52, and shims 54 are set between the two ends of the double-ended studs and through-bolts 53 and the outer wall of the outer mold 2 and the inner wall of the inner mold 3. The combination of high-strength nuts 56, shims 54 and double-ended studs and through-bolts 53 is used for bidirectional tightening to prevent the bottom mold section from expanding during subsequent pouring.

[0033] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. Wind power hybrid cylindrical bottom formwork, which includes: A mixed bottom mold (1) is provided with an outer mold (2) and an inner mold (3), characterized in that: the mixed bottom mold (1) includes several pairs of template bottom adjustment supports (4) and a lower concrete bottom mold (5), the outer mold (2) and the inner mold (3) are located on the template bottom adjustment supports (4), an upper steel bottom mold (6) is provided on the lower concrete bottom mold (5), and an adjustment steel plate (7) is provided on the template bottom adjustment supports (4).

2. The wind power hybrid cylindrical bottom mold according to claim 1, characterized in that: The lower concrete bottom formwork (5) includes several steel bottom formwork supports (51), each of which has a pre-embedded through steel pipe (52) running through its middle, and each of the steel bottom formwork supports (51) has a groove (55) on its top.

3. The wind power hybrid cylindrical bottom mold according to claim 2, characterized in that: The pre-embedded through-steel pipe (52) is provided with a double-headed stud through-screw (53) in the middle. The outer wall of the outer mold (2) and the inner wall of the inner mold (3) are provided with washers (54) at the positions corresponding to the double-headed stud through-screw (53). Both ends of the double-headed stud through-screw (53) are connected to the washers (54) by high-strength nuts (56).

4. The wind power hybrid cylindrical bottom mold according to claim 3, characterized in that: The upper steel bottom mold (6) includes several segmented molds (61). Each segmented mold (61) has a connecting end plate (62) on both sides. The connecting end plates (62) of two connected segmented molds (61) are located in the first groove (55). A pair of high-strength connecting bolts (63) are provided between the connecting end plates (62) of two connected segmented molds (61).

5. The wind power hybrid cylindrical bottom mold according to claim 4, characterized in that: Each of the segmented molds (61) has several L-shaped mounting bases (65) at its bottom, and each of the L-shaped mounting bases (65) has an anchor bolt (64).

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