Large fan guide pipe rack assembly jig

Abstract

The utility model relates to a large -scale fan guide pipe frame assembly jig, including combined tower, combined tower includes four and presents the support tower of mouth character type distribution, and each support tower is by a plurality of branch tower and is stacked and spliced layer by layer upwards, and the adjacent two branch towers are connected through the flange, and a plurality of inclined ladders for reaching the top from the bottom of the support tower are arranged on each support tower, and the adjacent two support towers are connected through a plurality of cross braces, and the two ends of the cross brace are detachably connected with the support tower of the same side through the first connecting assembly and the second connecting assembly, the two connecting lug plates of the first connecting assembly are horizontally arranged, the two connecting lug plates of the second connecting assembly are vertically arranged, and the bottom end of each support tower is fixed through the ground anchor bolt, and the utility model discloses large -scale fan guide pipe frame assembly jig has high structural strength, stable gravity center and excellent anti-overturning capacity.

Description

Technical Field

[0001] This utility model relates to the field of jig technology, and in particular to a jig for assembling large wind turbine ductwork. Background Technology

[0002] The wind turbine jacket foundation is one of the main structural forms used in offshore wind power foundations, and it is the primary structural form used for large-capacity wind turbines. The structure is mainly composed of steel pipes of different diameters assembled together. Due to the large volume of large wind turbine jacket foundations, they are usually divided into upper and lower sections and assembled in the field in a three-dimensional, sheet-like manner. This not only places high demands on the structural strength of the assembly jig but also requires maintaining a stable center of gravity and excellent anti-overturning capabilities.

[0003] Therefore, this utility model proposes a large-scale wind turbine duct frame assembly jig to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a large wind turbine jacket assembly jig with high structural strength, stable center of gravity, and excellent anti-overturning ability.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a large wind turbine duct frame assembly frame, the innovation of which is: including a combined tower frame; The combined tower includes four support towers arranged in a U-shape. Each support tower is composed of several sub-towers stacked and spliced ​​upwards layer by layer. Adjacent sub-towers are connected by flanges. Several inclined ladders are arranged on each support tower for access from the bottom to the top. Each pair of adjacent support towers is connected by several cross braces. The two ends of the cross braces are detachably connected to the support towers on the same side by a first connecting assembly and a second connecting assembly, respectively. Each of the first and second connecting assemblies includes two connecting lugs. One connecting lug is fixedly connected to the support tower, and the other connecting lug is fixedly connected to the cross brace. The two connecting lugs are connected by connecting bolts. The two connecting lugs of the first connecting assembly are horizontally arranged, and the two connecting lugs of the second connecting assembly are vertically arranged. The bottom of each support tower is fixed by ground anchor bolts.

[0006] Furthermore, the two connecting lugs are connected by two connecting bolts. One connecting lug has two first oblong holes, and the other connecting lug has two second oblong holes that correspond one-to-one with the first oblong holes. The length direction of the first oblong holes is perpendicular to the length direction of the second oblong holes. The two connecting lugs fit together, and the two second oblong holes cooperate with the corresponding first oblong holes to form two cross-shaped holes. The two connecting bolts are respectively inserted into the corresponding cross-shaped holes.

[0007] Furthermore, the adjacent horizontal braces are connected by several diagonal braces.

[0008] Furthermore, a support platform is coaxially provided above the combined tower. The support platform includes an operating platform and a support frame. The support frame is installed at the top of the combined tower, and the operating platform is installed at the top of the support frame. The operating platform is provided with a straight ladder for access from the top of the combined tower to the operating platform.

[0009] Furthermore, the support platform also includes a protective structure, which is installed on the upper part of the ladder and works with the ladder to form a safe passage for people to pass through.

[0010] Furthermore, the protective structure includes several C-shaped protective rings arranged sequentially from bottom to top. The C-shaped protective rings are connected to form a whole by longitudinal connecting plates. Each C-shaped protective ring includes an arc segment in the middle. A straight segment is connected to each end of the arc segment. The straight segment is inclined outward from the connection point with the arc segment towards the direction of the straight ladder. A U-shaped segment is connected to the end of each straight segment away from the arc segment. The opening of the U-shaped segment faces the arc segment. The end of the U-shaped segment away from the straight segment is connected to the side wall of the straight ladder.

[0011] The advantages of this utility model are: (1) The assembly frame of this utility model adopts the longitudinal stacking of sub-towers to form four support towers. The sub-towers are connected by flanges, which can effectively control the overall verticality of the support towers, improve the assembly accuracy, and thus maintain the stability of the center of gravity. The four support towers are distributed in a U-shape and are connected to each other by cross braces to form a whole. The structure has high strength and a stable center of gravity. The support towers are fixed to the bottom surface by ground bolts. The two ends of each cross brace are connected to the support towers on both sides by two mutually perpendicular connecting components, so that the assembly frame has excellent anti-overturning ability.

[0012] (2) Both connecting lugs of the first and second connecting components of this utility model have waist-shaped holes, which can effectively reduce the hole opening accuracy requirements and reduce the manufacturing difficulty.

[0013] (3) This utility model improves the deformation resistance of the cross braces and enhances the anti-overturning ability of the assembly frame by setting diagonal braces between adjacent cross braces.

[0014] (4) By setting a support platform on the combined tower, this utility model facilitates the top construction work of the operators. The support platform is set coaxially with the combined tower, which helps to improve the stability of the center of gravity of the assembly frame and the anti-overturning ability.

[0015] (5) This utility model improves the safety of the construction process of the formwork by setting a protective structure on the upper part of the straight ladder to form a safe protective passage.

[0016] (6) The protective structure of this utility model is spliced ​​together by a C-shaped protective ring and a longitudinal connecting plate. This design can reduce weight and achieve good protective effect. The C-shaped protective ring adopts a composite structure design of arc segment + symmetrical straight segment + U-shaped segment, which can ensure the structural strength at the connection with the straight ladder and has sufficient bending stiffness. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a front view of the large wind turbine duct frame assembly jig of this utility model.

[0019] Figure 2 This is a side view of the assembly frame for the large wind turbine ductwork of this utility model.

[0020] Figure 3 This is a top view of the assembly frame for the large wind turbine ductwork of this utility model.

[0021] Figure 4 This is an enlarged view of section A of this utility model.

[0022] Figure 5 This is an enlarged view of section B of this utility model.

[0023] Figure 6 This is an enlarged view of section C of the present invention. Figure 7 This is a schematic diagram of the support platform of this utility model.

[0024] Figure 8 This is a top view of the protective structure of this utility model.

[0025] Figure 9 This is a schematic diagram of the assembly of the guide frame using the assembly jig of this utility model. Detailed Implementation

[0026] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0027] Example This embodiment provides a large wind turbine ductwork assembly jig, such as Figure 1-9 As shown, it includes a combined tower 1.

[0028] The combined tower 1 includes four support towers 11 arranged in a U-shape. Each support tower 11 is formed by stacking and splicing several sub-towers 111 layer by layer. Each sub-tower 111 is a truss structure formed by splicing four columns and several horizontal bars and several diagonal bars. Each column of the sub-tower 111 has flanges 112 at both the top and bottom ends. Two adjacent sub-towers 111 are connected by flanges 112. The bottom flanges of the four columns of the upper sub-tower 111 are respectively connected to the top flanges of the four columns of the lower sub-tower, and are fixedly connected by flange bolts 113. Each support tower 11 is provided with several inclined ladders 12 for accessing the top from the bottom of the support tower 11. Each pair of adjacent support towers 11 are connected by several cross braces 13. The two ends of the cross braces 13 are detachably connected to the support towers on the same side by first connecting components 14 and second connecting components 15 respectively. Each of the first and second connecting components includes two connecting lugs. The two connecting lugs of the first connecting component are horizontally arranged, and the two connecting lugs of the second connecting component are vertically arranged. The two connecting lugs of the first and second connecting components are connected by two connecting bolts 17. One connecting lug is fixedly connected to the support tower 11 and has two first waist-shaped holes. The other connecting lug is fixedly connected to the cross brace 13 and has two second waist-shaped holes that correspond one-to-one with the first waist-shaped holes. The length direction of the first waist-shaped holes is perpendicular to the length direction of the second waist-shaped holes. The two connecting lugs fit together. The two second waist-shaped holes and the corresponding first waist-shaped holes cooperate to form two cross-shaped holes 16. The two connecting bolts 17 are respectively inserted into the corresponding cross-shaped holes 16. Adjacent horizontal supports 13 are connected by several diagonal supports 14, with both ends of the diagonal supports 14 welded to the horizontal supports 13. The bottom of each support tower is fixed to the ground by ground anchor bolts 18. The ground anchor bolts 18 are pre-embedded in the ground, and the bottom flange of the column of the lowest sub-tower of the support tower is connected to the ground anchor bolts 18.

[0029] In this embodiment, to facilitate top-level construction work for operators, a support platform 2 is coaxially mounted above the combined tower 1. The support platform 2 includes an operating platform 21 and a support frame 22. The support frame 22 is installed at the top of the combined tower 1, and the operating platform 21 is installed at the top of the support frame 22. A straight ladder 23 is provided on the operating platform 21 for access from the top of the combined tower 1 to the operating platform 21. To improve safety during the construction process of the formwork, the support platform 2 also includes a protective structure 24. The protective structure 24 is installed on the upper part of the straight ladder 23 and cooperates with the straight ladder 23 to form a safe passage for personnel.

[0030] The protective structure 24 includes three C-shaped protective rings 241 arranged sequentially from bottom to top. The three C-shaped protective rings 241 are connected as a whole by five longitudinal connecting plates 242. Each C-shaped protective ring 241 includes an arc segment a in the middle. A straight segment b is connected to each end of the arc segment a. The straight segment b slopes outward from its connection with the arc segment a towards the straight ladder 23. A U-shaped segment c is connected to the end of each straight segment b away from the arc segment a. The opening of the U-shaped segment c faces the arc segment a. The end of the U-shaped segment a away from the straight segment b is connected to the side wall of the straight ladder 23 by a pin. A pin hole is opened on the side wall of the straight ladder 23, and the pin is inserted into the pin hole. The protective structure 24 is composed of a C-shaped protective ring 241 and a longitudinal connecting plate 242. This design can reduce weight and provide good protection. The C-shaped protective ring 241 adopts a composite structure design of arc segment a + symmetrical straight segment b + U-shaped segment c, which can ensure the structural strength at the connection with the straight ladder and has sufficient bending stiffness.

[0031] The assembly jig uses longitudinally stacked sub-towers to form four support towers. The sub-towers are connected by flanges, which can effectively control the overall verticality of the support towers, improve assembly accuracy, and thus maintain a stable center of gravity. The four support towers are distributed in a U-shape and are connected to each other by cross braces to form a whole. The structure has high strength and a stable center of gravity. The support towers are fixed to the bottom surface with ground bolts. The two ends of each cross brace are connected to the support towers on both sides by two mutually perpendicular connecting components, giving the assembly jig excellent anti-overturning ability.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A large wind turbine ductwork assembly jig, characterized in that: Including combined towers; The combined tower includes four support towers arranged in a U-shape. Each support tower is composed of several sub-towers stacked and spliced ​​upwards layer by layer. Adjacent sub-towers are connected by flanges. Several inclined ladders are arranged on each support tower for access from the bottom to the top. Each pair of adjacent support towers is connected by several cross braces. The two ends of the cross braces are detachably connected to the support towers on the same side by a first connecting assembly and a second connecting assembly, respectively. Each of the first and second connecting assemblies includes two connecting lugs. One connecting lug is fixedly connected to the support tower, and the other connecting lug is fixedly connected to the cross brace. The two connecting lugs are connected by connecting bolts. The two connecting lugs of the first connecting assembly are horizontally arranged, and the two connecting lugs of the second connecting assembly are vertically arranged. The bottom of each support tower is fixed by ground anchor bolts.

2. The large wind turbine duct frame assembly jig according to claim 1, characterized in that: The two connecting lugs are connected by two connecting bolts. One connecting lug has two first oblong holes, and the other connecting lug has two second oblong holes that correspond one-to-one with the first oblong holes. The length direction of the first oblong holes is perpendicular to the length direction of the second oblong holes. The two connecting lugs fit together, and the two second oblong holes cooperate with the corresponding first oblong holes to form two cross-shaped holes. The two connecting bolts are respectively inserted into the corresponding cross-shaped holes.

3. The large wind turbine duct frame assembly jig according to claim 1, characterized in that: The adjacent horizontal braces are connected by several diagonal braces.

4. The large wind turbine duct frame assembly jig according to claim 1, characterized in that: A support platform is coaxially mounted above the combined tower. The support platform includes an operating platform and a support frame. The support frame is installed at the top of the combined tower, and the operating platform is installed at the top of the support frame. The operating platform is equipped with a straight ladder for access from the top of the combined tower to the operating platform.

5. The large wind turbine duct frame assembly jig according to claim 4, characterized in that: The support platform also includes a protective structure, which is installed on the upper part of the ladder and works with the ladder to form a safe passage for people to pass through.

6. The large wind turbine duct frame assembly jig according to claim 5, characterized in that: The protective structure includes several C-shaped protective rings arranged sequentially from bottom to top. The C-shaped protective rings are connected to form a whole by longitudinal connecting plates. Each C-shaped protective ring includes an arc segment in the middle. A straight segment is connected to each end of the arc segment. The straight segment is inclined outward from the connection point with the arc segment towards the direction of the straight ladder. A U-shaped segment is connected to the end of each straight segment away from the arc segment. The opening of the U-shaped segment faces the arc segment. The end of the U-shaped segment away from the straight segment is connected to the side wall of the straight ladder.

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