A fast installation system for the anchor bolts of a fan foundation

Abstract

The present invention discloses a fast installation system for wind turbine foundation anchor bolts. The fast installation system for wind turbine foundation anchor bolts is installed on the inner diameter of the upper anchor plate above the lower anchor plate. When hoisting the anchor bolts, the operator only needs to provide an auxiliary guiding force, and the force for hoisting the anchor bolts is provided by the rotary power component. For installing multiple anchor bolts, the labor intensity is reduced and the operation efficiency is improved, solving the problems of high labor consumption and low efficiency caused by relying entirely on manpower to erect the anchor bolts; the platform component forms a platform in the hollow inner diameter of the upper anchor plate to provide operation support for the staff, solving the safety problems such as falling, swinging and collision, and under the action of the fence, solving the safety risks of vertical cross-operation and the problems of safety accidents such as falling objects hurting people, falling from heights, and mechanical strikes; when hoisting multiple anchor bolts, the anchor bolts on the peripheral surface of the lower anchor plate can be operated on the upper anchor plate, solving the problem of reducing the construction efficiency by moving the scaffolding on the ground.

Description

Technical Field

[0001] The present invention relates to a fast installation system for wind turbine foundation anchor bolts, belonging to the technical field of wind turbine installation construction. Background Art

[0002] When installing the anchor bolts of the anchor bolt assembly of a wind turbine on land, the existing general method is to use a crane to lift the upper anchor plate, ensuring that the gravity of the upper anchor plate is completely borne by the hook. One or two workers climb onto the upper anchor plate at a height of about 4 m from the ground. All rely on 2 - 3 workers on the ground to manually erect the anchor bolts about 4 m long. First, insert them into the anchor bolt holes on the side of the upper anchor plate, then into the anchor bolt holes at the lower anchor plate, and finally lock the nuts at the upper and lower anchor plates. Taking a certain project's Goldwind 3.0 MW wind turbine generator as an example, there are 176 foundation anchor bolts in total. This means that in the installation of the anchor bolts, the above process needs to be repeated more than 176 times, resulting in a large consumption of manpower and low efficiency. Moreover, when the workers on the upper and lower anchor plates are working, the workers on the upper anchor plate can only sit on the upper anchor plate. Since the inside of the upper anchor plate is completely empty and the width of the anchor plate is only 0.5 m, although the safety belt can be hung on the crane hook, the hanging point of the safety belt is more than 2 m away from the plumb line of the hook. Once there is a risk of falling, there will be swinging collisions, causing greater secondary injuries, and there are major safety hazards. When the workers on the upper and lower anchor plates are working, there are also safety risks of vertical cross-operation, and it is extremely easy to occur safety accidents such as falling objects injuring people, falling from heights, and mechanical strikes.

[0003] In a mobile scaffolding for the installation of wind turbine prestressed anchor bolts with the Chinese Patent Publication No. CN209277509U, although the workers can install the anchor bolts onto the lower and upper anchor plates through the scaffolding, although it solves the problem of potential safety hazards when working on the upper anchor plate, during installation, it will occupy one working surface of the anchor bolt assembly and cannot work on all four sides simultaneously. When adjusting and changing the working surface for installation, it is necessary to move the scaffolding through the self-locking rollers multiple times, reducing the construction efficiency. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a fast installation system for wind turbine foundation anchor bolts.

[0005] The present invention is achieved through the following technical solutions.

[0006] A fast installation system for wind turbine foundation anchor bolts provided by the present invention includes:

[0007] A hoisting assembly;

[0008] A platform assembly, the hoisting assembly is installed on the platform assembly, the platform assembly provides a force-bearing foundation for the hoisting assembly, and the staff can step on the platform assembly to carry out operations;

[0009] The sliding plate assembly, and the platform assembly is detachably installed on the upper anchor plate through the sliding plate assembly.

[0010] It further includes a fence installed on the outer edge of the platform assembly.

[0011] The hoisting assembly includes a controllable telescopic support member, and a fixed pulley is installed at one end of the support member;

[0012] A rotary power member installed on the platform assembly, and the other end of the support member is rotatably hinged to the base of the rotary power member;

[0013] A hoisting rope, one end of the hoisting rope is wound around the rotating end of the rotary power member, and a hook for hoisting the anchor bolt is installed after the hoisting rope bypasses the fixed pulley.

[0014] The platform assembly includes a first side platform and a second side platform, and the first side platform and the second side platform are detachably assembled;

[0015] An operation through hole is provided on the first side platform or the second side platform, and a cover plate can be installed on the operation through hole in a flip-up manner;

[0016] Lifting lugs are fixed on the first side platform and the second side platform;

[0017] A winch that can be rotatably installed on the first side platform and / or the second side platform, and when the winch rotates, it can drive the rotary power member to rotate along the circumferential direction of the upper anchor plate.

[0018] The sliding plate assembly includes guide plates fixed on the first side platform and the second side platform to realize the fixed installation of the sliding plate assembly and the platform assembly;

[0019] A sliding plate, a sliding plate with a hollow interior and both ends being permeable, the sliding plate can be slidably sleeved on the guide plate, and a notch for clamping with the inner diameter edge of the upper anchor plate is provided at the outer end of the sliding plate;

[0020] Limit through holes are provided on the side edges of the guide plate and the sliding plate, and limit posts are clamped in the limit through holes;

[0021] The width of the notch at the outer end of the sliding plate is greater than the axial thickness of the inner diameter of the upper anchor plate.

[0022] A handle for facilitating the sliding of the sliding plate on the guide plate is fixed on the side edge of the sliding plate.

[0023] The beneficial effects of the present invention are as follows: The fast-installation system for the anchor bolts of the fan foundation is installed on the inner diameter of the upper anchor plate above the lower anchor plate. When hoisting the anchor bolts, the operator only needs to provide an auxiliary guiding force, and the force for hoisting the anchor bolts is provided by the rotating power component. For installing multiple anchor bolts, the labor intensity is reduced and the operation efficiency is improved, solving the problems of high labor consumption and low efficiency caused by relying entirely on manual labor to erect the anchor bolts; the platform component forms a platform in the hollow of the inner diameter of the upper anchor plate to provide operation support for the staff, solving the safety problems such as falling, swinging and collision, and under the action of the fence, solving the safety risks of vertical cross-operation and the problems of safety accidents such as falling objects hurting people, falling from a height, and mechanical strikes; when hoisting multiple anchor bolts, the operation on the anchor bolts on the peripheral surface of the lower anchor plate can be carried out on the upper anchor plate, solving the problem of reducing the construction efficiency by moving the scaffolding on the ground. Brief Description of the Drawings

[0024] Figure 1 is the structural schematic diagram of the hoisting of the fast-installation system for the anchor bolts of the fan foundation of the present invention;

[0025] Figure 2 is the installation structural schematic diagram of the platform component of the present invention;

[0026] Figure 3 is the structural schematic diagram of the platform component, the sliding plate component and the fence of the present invention;

[0027] Figure 4 is the structural schematic diagram of the winch installed on the platform component of the present invention;

[0028] Figure 5 is the structural schematic diagram of the winch located at the inner diameter of the upper anchor plate of the present invention;

[0029] Figure 6 is the installation schematic diagram of the hoisting rope hoisting the anchor bolts on the upper anchor plate and the lower anchor plate of the present invention;

[0030] Figure 7 is the structural schematic diagram of the sliding plate component of the present invention;

[0031] In the figure: 11 - anchor bolt; 12 - upper anchor plate; 13 - lower anchor plate; 21 - support; 23 - winch; 24 - hoisting rope; 31 - first side platform; 32 - second side platform; 33 - cover plate; 34 - lifting lug; 35 - winch drum; 41 - guide plate; 42 - sliding plate; 43 - limit post; 44 - handle; 5 - fence. Detailed Embodiments

[0032] The technical solutions of the present invention will be further described below, but the scope of protection is not limited thereto.

[0033] As Figures 1 to 7 shown.

[0034] A fast-installation system for the anchor bolts of a fan foundation according to the present invention includes:

[0035] A hoisting assembly capable of hoisting the anchor bolts 11 and installing them on the upper anchor plate 12 and the lower anchor plate 13;

[0036] The hoisting assembly includes a support member 21, and the support member 21 is composed of a telescopic rod with a controllable telescopic length, for example, a telescopic rod formed by screwing at least two rods together with clearance for telescopic sleeving;

[0037] A fixed pulley, which is installed at the end of the support member 21 extending outside the outer diameter of the upper anchor plate 12;

[0038] A rotary power member 23 placed on the platform assembly and located inside the inner diameter of the upper anchor plate 12. The rotary power member 23 is a winch, and the end of the support member 21 located inside the inner diameter of the upper anchor plate 12 is hinged to the base of the rotary power member 23 so as to be able to rotate up and down along the axial direction of the anchor bolt 11;

[0039] A hoisting rope 24 composed of a steel wire rope. The hoisting rope 24 can also be a synthetic fiber sling, for example, a single 1t / 2m polyester flat sling is selected; one end of the hoisting rope 24 is wound around the rotary power member 23, and the hoisting rope 24 bypasses the fixed pulley and is equipped with a hook for hoisting the anchor bolt 11. The hook can be a 1t steel hook.

[0040] A platform assembly providing a force-bearing foundation for the hoisting assembly, and workers can step on the platform assembly to carry out operations;

[0041] The platform assembly includes a first side platform 31 and a second side platform 32 formed by welding or bolt installation with rigid materials such as steel plates and / or steel beams. The first side platform 31 and the second side platform 32 are detachably assembled by bolts;

[0042] One or more operation through-holes for workers to go up and down are provided on the platform assembly. The operation through-holes can be provided on the first side platform 31 or the second side platform 32, and a cover plate 33 is installed on the operation through-hole by a hinge for flipping;

[0043] Lifting lugs 34 are welded and fixed on the platform assembly. There are multiple lifting lugs 34 welded on the first side platform 31 and the second side platform 32. The crane can easily lift the whole system from the upper anchor plate 12 to the ground for disassembly and decomposition through the lifting lugs 34;

[0044] The hoisting winch 35 can be rotatably installed on the platform assembly through the clearance fit of the bearing or the shaft hole. The hoisting winch 35 is installed on the first side platform 31 or the second side platform 32. The rotary power member 23 is installed on the hoisting winch 35 to achieve the purpose of providing a force-bearing foundation for the hoisting assembly by the platform assembly. When the hoisting winch 35 rotates, it can drive the rotary power member 23 to rotate along the circumferential direction of the upper anchor plate 12; the rotary power member 23 can also be directly installed on the first side platform 31 or the second side platform 32.

[0045] The sliding plate assembly fixedly installed with the platform assembly, and the sliding plate assembly is detachably installed with the upper anchor plate 12;

[0046] The sliding plate assembly includes guide plates 41 welded and fixed at intervals on the first side platform 31 and the second side platform 32 to achieve the fixed installation of the sliding plate assembly with the platform assembly; the guide plates 41 can be four or more. Two guide plates 41 are distributed on the first side platform 31, and the other two guide plates 41 are distributed on the second side platform 32; the guide plates 41 can also be multiple;

[0047] The sliding plate 42 with a hollow interior and both ends permeable. A notch for clamping with the inner diameter edge of the upper anchor plate 12 is provided at the outer end of the sliding plate 42;

[0048] Limit through holes are provided on the side edges of the guide plate 41 and the sliding plate 42, and limit posts 43 are clamped in the limit through holes;

[0049] The width of the notch at the outer end of the sliding plate 42 is greater than the axial thickness of the inner diameter of the upper anchor plate 12. When the sliding plate 42 slides on the guide plate 41 and the notch is clamped with the inner diameter edge of the upper anchor plate 12, the limit through holes of the guide plate 41 are aligned with the limit through holes of the sliding plate 42, and the limit posts 43 are inserted into the limit through holes on the side edges of the guide plate 41 and the sliding plate 42 for limiting;

[0050] When the upper anchor plate 12 is not moved, the guide plate 41 is hoisted by a crane to a state where the upper and lower edges of the notch do not cooperate with the inner diameter edge of the upper anchor plate 12, so that the sliding plate 42 slides upward to the center of the inner diameter of the upper anchor plate 12 on the guide plate 41, and the sliding plate 42 is quickly separated from the upper anchor plate 12; realizing the detachable installation of the sliding plate assembly with the upper anchor plate 12.

[0051] A handle 44 for facilitating the sliding of the sliding plate 42 on the guide plate 41 is welded and fixed on the side edge of the sliding plate 42.

[0052] The fence 5 installed on the outer edge of the platform assembly protects the staff on the platform assembly.

[0053] A method for installing and constructing the anchor plate of the fan foundation anchor bolt using the fan foundation anchor bolt quick-installation system. The system implementation process includes the following steps:

[0054] System installation: Install the fast-installation system for the fan foundation anchor bolts on the inner diameter of the upper anchor plate 12 above the lower anchor plate 13. Arrange a small and slow rotating power component 23 on the winch 35 of the platform assembly. Install and arrange the support rod 21, and install a fixed pulley at the top of the support rod 21. The rotating power component 23 releases the hoisting rope 24 along the direction of the support rod 21. The hoisting rope 24 passes through the fixed pulley at the top of the support rod 21 and a hook is installed at the head of the hoisting rope 24. Adjust the length of the telescopic section of the support rod 21 to ensure that the support rod 21 extends 100 mm beyond the outer edge of the outer diameter of the upper anchor plate 12, and fix the fastening screw of the movable section so that the support rod 21 can no longer be telescoped.

[0055] Hoisting preparation: Lower the hoisting rope 24 of the rotating power component 23 to make the hook at the end of the hoisting rope 24 descend to the ground. At the same time, the ground staff prepares for the installation of the anchor bolts 11. Arrange all the anchor bolts 11 neatly in the combination site, screw on a thin locking nut at the lower end (short threaded end) of the anchor bolts 11, and screw a nylon adjusting nut into the upper end of the positioned anchor bolts 11. The ground staff binds the anchor bolts 11 with synthetic fiber slings, and the lifting point is about 1 / 3 of the anchor bolt (upper end). The hook is hooked with the synthetic fiber sling.

[0056] Hoisting construction: Start the rotating power component 23 to lift the anchor bolts 11. When the upper end of the anchor bolts 11 is about 100 mm below the lower surface of the upper anchor plate 12, stop the lifting. At this time, the ground staff adjusts the angle of the anchor bolts 11, and manually guides and lifts the anchor bolts 11. The upper end first penetrates into the anchor hole of the upper anchor plate 12, and then the lower end penetrates into the corresponding anchor hole of the lower anchor plate 13. After the installation of the anchor bolts 11 in the same area is completed, the support rod 21 retracts, and the rotating power component 23 is started to retract the hoisting rope 24 and the hook. The rotating power component 23 rotates the rotating platform on the winch 23 to face the next area, and repeat the above steps to hoist and penetrate all the anchor bolts in turn.

[0057] The fast-installation system for the fan foundation anchor bolts is installed on the inner diameter of the upper anchor plate 12 above the lower anchor plate 13. When hoisting the anchor bolts 11, the operator only needs to provide an auxiliary guiding force, and the force for hoisting the anchor bolts 11 is provided by the rotating power component 23. For the installation of multiple anchor bolts 11, the labor intensity is reduced and the operation efficiency is improved, solving the problem of high labor consumption and low efficiency of relying entirely on manpower to erect the anchor bolts. The platform assembly forms a platform in the hollow inner diameter of the upper anchor plate 12 to provide operation support for the staff, solving the safety problems such as falling and swinging collisions. And under the action of the fence, the safety risk of vertical cross-operation is solved, and safety accidents such as falling objects hurting people, falling from heights, and mechanical strikes are extremely likely to occur. When hoisting multiple anchor bolts 11, the operation on the anchor bolts 11 on the peripheral surface of the lower anchor plate 13 can be carried out on the upper anchor plate 12, solving the problem of reducing the construction efficiency by moving the scaffolding on the ground.

Claims

1. A fast - installation system for fan foundation anchor bolts, characterized in that, it includes: a hoisting assembly; a platform assembly, and the hoisting assembly is installed on the platform assembly; a sliding plate assembly, and the platform assembly is detachably installed with an upper anchor plate (12) through the sliding plate assembly; The hoisting assembly includes a controllable telescopic support member (21), and a fixed pulley is installed at one end of the support member (21); a rotary power member (23) installed on the platform assembly, and the other end of the support member (21) is rotatably hinged to the base of the rotary power member (23); a hoisting rope (24), one end of the hoisting rope (24) is wound around the rotating end of the rotary power member (23), and a hook for hoisting the anchor bolt (11) is installed after the hoisting rope (24) bypasses the fixed pulley; The platform assembly includes a first - side platform (31) and a second - side platform (32), and the first - side platform (31) and the second - side platform (32) are detachably assembled; a winch (35) rotatably installed on the first - side platform (31) and / or the second - side platform (32), and when the winch (35) rotates, it can drive the rotary power member (23) to rotate along the circumferential direction of the upper anchor plate (12); It also includes a fence (5) installed on the outer edge of the platform assembly.

2. The fast - installation system for fan foundation anchor bolts according to claim 1, characterized in that: It also includes an operation through - hole provided on the first - side platform (31) or the second - side platform (32), and a cover plate (33) is installed on the through - hole in a flip - up manner.

3. The fast - installation system for fan foundation anchor bolts according to claim 1, characterized in that: It also includes a lifting lug (34), and the lifting lug (34) is fixed on the first - side platform (31) and the second - side platform (32).

4. The fast - installation system for fan foundation anchor bolts according to claim 1, characterized in that: The sliding plate assembly includes a guide plate (41) fixed on the first - side platform (31) and the second - side platform (32) to realize the fixed installation of the sliding plate assembly and the platform assembly; a sliding plate (42), the sliding plate (42) with a hollow interior and both ends being transparent, the sliding plate (42) can be slidably sleeved on the guide plate (41), and a notch for clamping with the inner - diameter edge of the upper anchor plate (12) is provided at the outer end of the sliding plate (42).

5. The fast - installation system for fan foundation anchor bolts according to claim 4, characterized in that: Limit through - holes are provided on the side edges of the guide plate (41) and the sliding plate (42), and a limit post (43) is clamped in the limit through - holes.

6. The fast - installation system for fan foundation anchor bolts according to claim 4, characterized in that: The width of the notch at the outer end of the sliding plate (42) is greater than the axial thickness of the inner diameter of the upper anchor plate (12).

7. The fast - installation system for fan foundation anchor bolts according to claim 4, characterized in that: A handle (44) for facilitating the sliding of the sliding plate (42) on the guide plate (41) is fixed on the side edge of the sliding plate (42).

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