A bolt fastening device for assembling a tower ring

Abstract

The utility model relates to a bolt fastening device for mixed tower ring piece assembly, including portal, arm lever, diagonal bracing, rope buckle, single pulley assembly, hemp rope, the portal sleeve is in the mixed tower ring piece top, the arm lever is obliquely installed in the portal top one end, the diagonal bracing is installed between the arm lever and the portal, the rope buckle is installed in the arm lever top, the single pulley assembly is hung in the rope buckle bottom, the hemp rope is formed double head after winding the single pulley assembly, and one head of the hemp rope is bound with the tubular booster rod, and the tubular booster rod is installed with the wrench for the sleeve joint nut far from the hemp rope one end, and the bolt fastening is realized through the manual pulling the other head of the hemp rope and drives the wrench rotation to realize the bolt fastening. The utility model converts the high altitude construction work into the ground work, improves the safety of bolt fastening work, and greatly reduces the labor intensity of construction personnel. Meanwhile, the device is small and light, simple to install, can improve the work efficiency well, and the manufacturing cost is low, effectively reduces the construction cost.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine equipment installation technology, and in particular to a bolt fastening device for assembling mixed tower rings. Background Technology

[0002] In the field of new energy wind power plant construction, with the industry developing rapidly and wind turbine capacity increasing, concrete towers have emerged. They are a product of the demand for larger and lower-cost wind turbines, and may develop towards greater modularity and intelligence in the future.

[0003] Due to transportation limitations, hybrid towers can only be assembled on-site at the wind turbine location. Most hybrid tower manufacturers use tie bolts to assemble the vertical joints of the ring sections. The tie bolts at the top of the ring sections are generally about three meters above the ground, making it impossible for construction workers to connect and tighten the tie bolts on the ground. They need to climb up and use a mobile platform for installation. However, ordinary mobile construction platforms occupy a lot of space, making them difficult to use in the confined and complex working space inside the hybrid tower. This difficulty in movement inevitably leads to excessive labor and time consumption, resulting in high construction costs and low efficiency. Summary of the Invention

[0004] This utility model aims to address the shortcomings of existing technologies by providing a bolt fastening device for assembling mixed tower ring plates.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a bolt fastening device for assembling mixed tower rings, comprising a gantry, a boom, a diagonal brace, a rope buckle, a single pulley assembly, and a hemp rope. The gantry is fitted onto the top of the mixed tower ring. The boom is obliquely installed at one end of the top of the gantry. The diagonal brace is installed between the boom and the gantry. The rope buckle is installed at the top of the boom. The single pulley assembly is suspended at the bottom of the rope buckle. The hemp rope passes through the single pulley assembly to form a double protrusion. A tubular assist rod is tied to one protrusion of the hemp rope. A wrench for fitting a nut is installed at the end of the tubular assist rod away from the hemp rope. The other protrusion of the hemp rope is manually pulled to drive the wrench to rotate, thereby achieving bolt fastening.

[0006] Specifically, the gantry consists of a horizontal bar and two vertical bars, with the two vertical bars fixed to the bottom ends of the horizontal bar respectively.

[0007] Specifically, a balance bar is welded to the middle of the front and rear sides of the horizontal bar to ensure the stable placement of the gantry.

[0008] Specifically, the bottom end of the diagonal brace is welded to the outside of the adjacent upright, and the top end is welded to the bottom of the arm.

[0009] The beneficial effects of this invention are as follows: This invention changes the direction of force for bolt tightening by using a single pulley, transforming high-altitude construction work into ground-based work. Compared to using a movable platform, this invention improves the safety of bolt tightening operations and significantly reduces the labor intensity of construction workers. Furthermore, the device is compact, lightweight, and easy to install, greatly improving work efficiency, and its low manufacturing cost effectively reduces construction costs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the working state of this utility model;

[0012] In the diagram: 1-Gantry; 101-Horizontal pole; 102-Vertical pole; 2-Arm; 3-Diagonal brace; 4-Rope buckle; 5-Single pulley assembly; 6-Hemp rope; 7-Tube-type assist rod; 8-Wrench; 9-Balance bar; 10-Mixing tower ring plate;

[0013] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] like Figures 1-2 As shown, a bolt fastening device for assembling mixed tower rings includes a gantry 1, a boom 2, a diagonal brace 3, a rope buckle 4, a single pulley assembly 5, and a hemp rope 6. The gantry 1 is fitted onto the top of the mixed tower ring 10. The gantry 1 includes a horizontal bar 101 and two vertical bars 102. The two vertical bars 102 are respectively fixed to the bottom ends of the horizontal bar 101. A balance bar 9 for the gantry 1 to be stably placed is welded to the middle of the front and rear sides of the horizontal bar 101.

[0016] The boom 2 is installed diagonally at one end of the top of the gantry 1. The diagonal brace 3 is installed between the boom 2 and the gantry 1. The bottom end of the diagonal brace 3 is welded to the outside of the adjacent upright 102, and the top end is welded to the bottom of the boom 2. The rope buckle 4 is installed at the top of the boom 2, and the single pulley assembly 5 is suspended at the bottom of the rope buckle 4.

[0017] After the hemp rope 6 passes through the single pulley assembly 5, it forms a double protrusion. One protrusion of the hemp rope 6 is tied with a tubular assist rod 7. The end of the tubular assist rod 7 away from the hemp rope 6 is equipped with a wrench 8 for fitting nuts. By manually pulling the other protrusion of the hemp rope 6, the wrench 8 is driven to rotate to achieve bolt tightening.

[0018] In the construction of a wind power project, the wind turbine tower was selected as a concrete tower structure. The concrete tower ring 10 was prefabricated at the prefabrication plant and transported to the wind turbine hoisting platform. After the on-site construction personnel inspected the concrete tower ring 10 and confirmed that it was correct, they unloaded it from the truck and hoisted it onto the pre-assembled concrete tower assembly platform for on-site assembly.

[0019] Two ring-shaped panels are hoisted and placed on the tower assembly platform. After adjusting relevant installation parameters such as misalignment, elevation, and levelness, tie bolts are inserted into the tie bolt holes below the vertical joint of the tower on the ground. A ladder is then used to insert the upper bolts of the vertical joint into place. Figure 2 As shown, the gantry 1 is fitted onto the appropriate position of the vertical joint connection surface of the mixing tower ring plate 10, and the construction workers use the movable ladder to put the wrench 8 equipped with the tubular assist rod 7 onto the tie nut.

[0020] Tie one end of the double-ended hemp rope 6 to the tubular auxiliary rod 7, and have the workers on the ladder hold onto the tubular auxiliary rod 7. The workers on the ground pull the other end of the hemp rope 6, providing driving force to the wrench 8 to tighten the tie bolts. Repeatedly pull the hemp rope until the bolts are tightened to the design torque value. After tightening all the tie bolts, the assembly is complete.

[0021] This invention changes the direction of force for bolt tightening by using a single pulley system (5), transforming high-altitude work into ground-based work. Compared to using a mobile platform, this invention improves the safety of bolt tightening operations and significantly reduces the labor intensity of construction workers. Furthermore, the device is compact, lightweight, and easy to install, greatly improving work efficiency and reducing manufacturing costs, thus lowering overall construction costs.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A bolt fastening device for assembling mixed tower ring plates, characterized in that, The system includes a gantry (1), a boom (2), a diagonal brace (3), a rope buckle (4), a single pulley assembly (5), and a hemp rope (6). The gantry (1) is fitted onto the top of the mixing tower ring plate (10). The boom (2) is installed diagonally at one end of the top of the gantry (1). The diagonal brace (3) is installed between the boom (2) and the gantry (1). The rope buckle (4) is installed at the top of the boom (2). The single pulley assembly (5) is suspended at the bottom of the rope buckle (4). The hemp rope (6) passes through the single pulley assembly (5) to form a double protrusion. One protrusion of the hemp rope (6) is tied with a tubular assist rod (7). The end of the tubular assist rod (7) away from the hemp rope (6) is equipped with a wrench (8) for fitting nuts. The other protrusion of the hemp rope (6) is pulled manually to drive the wrench (8) to rotate so as to achieve bolt tightening.

2. The bolt fastening device for assembling mixed tower rings according to claim 1, characterized in that, The gantry (1) includes a horizontal bar (101) and two vertical bars (102), with the two vertical bars (102) fixed to the bottom ends of the horizontal bar (101).

3. The bolt fastening device for assembling mixed tower rings according to claim 2, characterized in that, The front and rear sides of the horizontal bar (101) are welded with a balance bar (9) for the gantry (1) to rest stably.

4. The bolt fastening device for assembling mixed tower rings according to claim 2, characterized in that, The bottom end of the diagonal brace (3) is welded to the outside of the adjacent upright (102), and the top end is welded to the bottom of the arm (2).

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