A hoist device for a wind turbine

Abstract

The utility model discloses a hoist device for wind generating set, including telescopic cross arm beam, diagonal pull rod, vertical arm, base support, base pull rod frame, adapter seat and reinforcing link, one end of telescopic cross arm beam is formed with vertical arm and is close to the top end of vertical arm detachable connection, two ends of diagonal pull rod are detachable with vertical arm and telescopic cross arm beam connection, the bottom of vertical arm is detachable with base support through adapter seat and is connected, one end of base support with base pull rod frame is detachable and the other end of base pull rod frame is opposite to the free end of telescopic cross arm beam, between vertical arm and base pull rod frame, between base support and vertical arm, between base support and telescopic cross arm beam, install a plurality of reinforcing links, the utility model solves the alignment problem of the heavy object that is hung and target installation position, and greatly promotes the carrying capacity and application scope of hoisting heavy object, increases stability, and dismouting is flexible.

Description

Technical Field

[0001] This utility model relates to the technical field of hoisting wind turbine generator sets, and in particular to a hoisting device for wind turbine generator sets. Background Technology

[0002] With the continuous development of wind power generation technology, the single unit capacity of wind turbine generators is getting larger and larger, and the size of the nacelle and the weight of its parts are also increasing. In order to facilitate the installation, maintenance and replacement of large components in the nacelle, it is necessary to install a hoisting device on the top of the nacelle.

[0003] Traditional wind turbine lifting devices mostly use fixed lifting points or simple lifting beam structures. Temporary lifting of heavy objects often uses scaffolding and other temporary structures, which has the following shortcomings: 1) Limited load-bearing capacity, making it difficult to meet the lifting requirements of large components of large-capacity wind turbines. The maximum load-bearing capacity designed in the past cannot meet the requirements for replacing components; 2) Poor flexibility, with fixed lifting point positions, making it difficult to adapt to lifting different target platforms in the nacelle; 3) Low safety, poor stability, lack of necessary safety protection devices, and potential safety hazards; 4) Inconvenient operation, with a complex assembly process that requires multiple people and is inefficient.

[0004] Existing technologies, such as the lifting fixture disclosed in Chinese utility model patent CN 215924210U, adopt a base bolt fixing structure, which has a limited application range; moreover, the structure is a pure cantilever, which limits the load capacity for lifting heavy objects. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a hoisting device for wind turbine generator sets. By adjusting the installation position of the device, the problem of aligning the hoisted object with the target installation position can be solved. Furthermore, the base design is stable and equipped with diagonal tie rods and support rods, which greatly improves the load-bearing capacity and application range of the hoisted object, increases stability, and allows for flexible disassembly and assembly.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows: a hoisting device for wind turbine generator sets, comprising a telescopic horizontal arm beam, a tie rod, a vertical arm, a base support, a base tie rod frame, an adapter seat, and reinforcing connecting rods; one end of the telescopic horizontal arm beam is detachably connected to the vertical arm and close to the top of the vertical arm; both ends of the tie rod are detachably connected to the vertical arm and the telescopic horizontal arm beam, respectively; the bottom end of the vertical arm is detachably connected to the base support via the adapter seat; one end of the base support is detachably connected to the base tie rod frame, and the other end of the base tie rod frame faces the opposite direction to the free end of the telescopic horizontal arm beam; multiple reinforcing connecting rods are installed between the vertical arm and the base tie rod frame, between the base support and the vertical arm, and between the base support and the telescopic horizontal arm beam.

[0007] Furthermore, the device includes a boom ring, a hanger, and a lifting lug; the boom ring is detachably installed at the bottom of the free end of the telescopic crossarm beam, the hanger is detachably installed at the top of the free end of the telescopic crossarm beam, and the lifting lug is detachably installed at the top of the vertical arm.

[0008] Furthermore, the base tie rod frame includes multiple base tie rods and base crossbars. One end of each base tie rod is distributed and detachably connected to the base support, while the other end of each base tie rod is centrally distributed and detachably connected to the base crossbar, forming a trapezoidal enlargement frame structure.

[0009] Furthermore, a storage box is installed on the base pull rod frame.

[0010] Furthermore, the tie rod is a telescopic tie rod.

[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0012] 1. This utility model meets the needs of wind turbine generator sets for lifting large and heavy workpieces from multiple angles and positions. By adjusting the installation position of the device, it solves the problem of the relationship between the lifted heavy object and the target installation position.

[0013] 2. The base of this utility model adopts a trapezoidal enlarged frame design, which makes the hoisting process more stable and can achieve multi-point support. It can also use an adjustable device to fix the base tie rod frame to the wind turbine reliably, rather than simply using fixed hole positions to support and connect the wind turbine generator set, making the device more stable and firm during hoisting.

[0014] 3. This utility model adopts a detachable connection structure, and the weight of a single component meets the needs of two people working together. It is flexible to disassemble and assemble, and simple to assemble.

[0015] 4. The wind turbine hoisting device can be installed in various locations such as the top of the nacelle, inside the tower, and offshore tower platform, making it widely applicable.

[0016] 5. This utility model solves the problem of insufficient crane load in the existing design of wind turbine generator sets, and has the characteristics of easy disassembly, easy installation, easy transportation and easy assembly, which can meet the needs of different models of wind turbine generator sets. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the vertical arm.

[0019] Figure 3 This is a schematic diagram of the structure supporting the base.

[0020] Figure 4This is a schematic diagram of a telescopic crossarm beam.

[0021] Figure 5 This is a structural schematic diagram of the hanger. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments.

[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 or an electrical connection; 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] Example 1

[0025] See Figures 1 to 5 As shown, the hoisting device for a wind turbine generator set provided in this embodiment includes a telescopic horizontal arm beam 1, a diagonal tie rod 2, a vertical arm 3, a base support 4, a base tie rod frame 5, an adapter seat 6, a reinforcing connecting rod 7, a boom ring 101, a hanger 102, and a lifting lug 301.

[0026] One end of the retractable horizontal arm beam 1 is detachably connected to the vertical arm 3 and is close to the top of the vertical arm 3; both ends of the diagonal tie rod 2 are detachably connected to the vertical arm 3 and the retractable horizontal arm beam 1 respectively, preferably the diagonal tie rod 2 is a telescopic diagonal tie rod, increasing the applicability of the retractable horizontal arm beam 1; the bottom end of the vertical arm 3 is detachably connected to the base support 4 through the adapter 6; one end of the base support 4 is detachably connected to the base tie rod frame 5, and the other end of the base tie rod frame 5 faces the opposite direction to the free end of the retractable horizontal arm beam 1; multiple reinforcing links are installed between the vertical arm 3 and the base tie rod frame 5, between the base support 4 and the vertical arm 3, and between the base support 4 and the retractable horizontal arm beam 1. The boom 101 is detachably installed at the bottom of the free end of the telescopic crossarm beam 1, and can be used with universal joint shackles, shackles and cranes to adapt to complex wind farm environments; the hanger 102 is detachably installed at the top of the free end of the telescopic crossarm beam 1, and is used to install a lightweight hand chain hoist to lift and install a heavy electric hoist onto the boom 101; the lifting lug 301 is detachably installed at the top of the vertical arm 3; the base tie rod frame 5 is equipped with a storage box to store electric crane chains, slings, shackles and other tools; the detachable connections between the components are all achieved by bolts, the weight of a single component meets the needs of two people working, ensuring flexible disassembly and assembly and simple assembly.

[0027] The base tie rod frame 5 includes multiple base tie rods 501 and base crossbars 502. One end of each base tie rod 501 is distributed and detachably connected to the base support 4, while the other end of each base tie rod 501 is concentrated and detachably connected to the base crossbar 502, forming a trapezoidal enlarged frame structure. In situations where there is no flat surface in the nacelle or other locations, a multi-point distributed force method can be used to support the hoisting device, reducing the single-point force on the original structure of the wind turbine generator, increasing the adaptability and load-bearing capacity of the hoisting device. Furthermore, the base tie rod frame 5 can be extended in all directions using square steel, correspondingly increasing the number of base tie rods 501. At the same time, adjustable devices such as cable ties or hand-operated hoists can be used to reliably fix the base tie rod frame 5 to the wind turbine.

[0028] By installing the base tie rod 5 in different directions and positions, the lifting point of the lifting device can be adjusted to achieve free lifting of heavy objects at multiple angles in the dimensional space. Furthermore, the vertical arm 3 and the telescopic horizontal arm beam 1 are at a preset height relative to the base tie rod 5, which can lift heavy objects over railings and other objects onto the installation surface.

[0029] Example 2

[0030] The installation method of the hoisting device for wind turbine generator sets provided in this embodiment includes:

[0031] After checking all materials at the base of the wind turbine tower and confirming that there are enough materials for this use, the workpiece of the hoisting device is hoisted and transported to the top of the wind turbine.

[0032] After assembling the base support 4, base tie rod frame 5, and adapter 6, connect and tighten them with bolts. Place them on the top of the cabin where the heavy object needs to be lifted, depending on the lifting direction. If necessary, use multiple straps to tie and fix the assembled base.

[0033] Connect and secure the vertical arm 3 to the adapter 6. After assembling the telescopic cross arm beam 1 and the vertical arm 3, connect and secure them with bolts.

[0034] Install the diagonal tie rod 2 and the reinforcing connecting rod 7. Depending on the operating conditions of the hoisting device, tighten the lifting lug 301 of the tie rod hook head and tighten the vertical arm 3 as necessary using lashing straps and shackles.

[0035] Shorten the telescopic crossbeam 1 to its shortest position, and use the auxiliary installation bracket 102 with a lightweight hand chain hoist to easily lift and install the heavy electric hoist onto the boom ring 101.

[0036] After testing the lifting equipment and confirming its stability, extend the telescopic crossarm beam 1, control the hook of the lifting equipment to the predetermined position, and the lifting operation can be carried out.

[0037] Once the heavy object is hoisted to the target platform, it can be placed on the target platform by extending and retracting the crossarm beam 1.

[0038] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A hoisting device for a wind turbine generator set, characterized in that: It includes a telescopic horizontal arm beam, diagonal tie rods, a vertical arm, a base support, a base tie rod frame, an adapter seat, and reinforcing connecting rods. One end of the telescopic horizontal arm beam is detachably connected to the vertical arm and is close to the top of the vertical arm. Both ends of the diagonal tie rod are detachably connected to the vertical arm and the telescopic horizontal arm beam, respectively. The bottom end of the vertical arm is detachably connected to the base support via an adapter seat. One end of the base support is detachably connected to the base tie rod frame, and the other end of the base tie rod frame faces the opposite direction to the free end of the telescopic horizontal arm beam. Multiple reinforcing connecting rods are installed between the vertical arm and the base tie rod frame, between the base support and the vertical arm, and between the base support and the telescopic horizontal arm beam.

2. The hoisting device for a wind turbine generator set according to claim 1, characterized in that: It includes a boom ring, a hanger, and a lifting lug; the boom ring is detachably installed at the bottom of the free end of the telescopic crossarm beam, the hanger is detachably installed at the top of the free end of the telescopic crossarm beam, and the lifting lug is detachably installed at the top of the vertical arm.

3. The hoisting device for a wind turbine generator set according to claim 1, characterized in that: The base tie rod frame includes multiple base tie rods and base crossbars. One end of each base tie rod is distributed and detachably connected to the base support, while the other end of each base tie rod is centrally distributed and detachably connected to the base crossbar, forming a trapezoidal enlargement frame structure.

4. The hoisting device for a wind turbine generator set according to claim 1, characterized in that: A storage box is installed on the base pull rod frame.

5. A hoisting device for a wind turbine generator set according to claim 1, characterized in that: The tie rod is a telescopic tie rod.

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