Yaw driving hoisting tool for wind generating set

Abstract

The utility model discloses a yaw driving hoisting tool for a wind generating set. The yaw driving hoisting tool comprises a first portal frame, a second portal frame, a first hoisting beam, a second hoisting beam, a third hoisting beam and a pulley, the first portal and the second portal are fixed to the top of a bearing seat and the top of a gear box elastic support of the wind generating set respectively. The first hanging beam is arranged on the top of the first portal, the top of the second portal and the top of the cabin support in a striding mode. The second hanging beam spans the top of the cabin support, one end of the second hanging beam is close to a cabin object hanging opening, and the other end of the second hanging beam is located beside the first hanging beam; the third hanging beam is fixed to the top of the first portal, one end of the third hanging beam intersects with the first hanging beam, and the other end of the third hanging beam extends to the position above the yaw drive installation position. And pulleys are respectively arranged on the bottom surfaces of the first hanging beam, the second hanging beam and the third hanging beam. The yaw driving device can effectively solve the problems that the distance between a cabin object lifting opening and a yaw driving installation position is long, the internal space of a cabin is narrow, and the yaw driving weight is heavy, so that the yaw driving is inconvenient to lift.

Description

Technical Field

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

[0002] The yaw drive of a wind turbine is an important component of the main unit's yaw. Due to the enormous weight of the main unit and rotor, the yaw drive bears a huge load during operation, posing a risk of exceeding the load limit and being damaged. The distance between the nacelle hoisting port and the yaw drive installation position is far, and the internal space of the nacelle is narrow. These conditions make yaw drive replacement difficult and pose a high risk to personnel.

[0003] Currently, the following two methods are generally used to lift yaw drives:

[0004] 1. Using temporary scaffolding made of round pipes, fasteners, and straps to hoist yaw drives results in low structural reliability and poses significant safety hazards;

[0005] 2. Disassembling the yaw drive and reducer into parts and handling them manually is inefficient, and it is difficult to guarantee the normal operation of the yaw drive and yaw reducer after reassembly. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a yaw drive hoisting tool for wind turbine generator sets, which can effectively solve the problems of the long distance between the nacelle hoisting port and the yaw drive installation position, the narrow space inside the nacelle, and the heavy weight of the yaw drive causing inconvenience in hoisting the yaw drive.

[0007] The objective of this utility model can be achieved by adopting the following technical solutions:

[0008] A hoisting fixture for yaw drive of a wind turbine generator set includes a first gantry, a second gantry, a first lifting beam, a second lifting beam, a third lifting beam, and trolleys. The first and second gantry are respectively fixed to the top of the bearing housing and the elastic support of the gearbox of the wind turbine generator set. The first lifting beam spans the top of the first gantry, the second gantry, and the nacelle support of the wind turbine generator set. The second lifting beam spans the top of the nacelle support of the wind turbine generator set, with one end close to the nacelle hoisting opening of the wind turbine generator set and the other end located next to the first lifting beam. The third lifting beam is fixed to the top of the first gantry, with one end intersecting the first lifting beam and the other end extending above the yaw drive installation position. The bottom surfaces of the first, second, and third lifting beams are respectively provided with trolleys for transporting the yaw drive. The yaw drive is transported sequentially from the nacelle hoisting opening of the wind turbine generator set to the yaw drive installation position via the trolleys at the bottom of the second, first, and third lifting beams.

[0009] Furthermore, the first lifting beam is composed of multiple segmented beams connected in sequence.

[0010] Furthermore, both the first gantry and the second gantry are composed of a gantry frame and cross braces connected together.

[0011] Furthermore, the door frame is a rectangular structure composed of two uprights and two crossbars, and each of the two uprights and two crossbars is provided with multiple adjustment mounting holes for adjusting the height or width of the door frame. The adjustment mounting holes are selected to connect the uprights and crossbars according to the actual height and width requirements.

[0012] Furthermore, the first lifting beam is fixed to the first gantry and the second gantry by installing a lifting bracket.

[0013] Furthermore, the third lifting beam and the first gantry are connected by straps.

[0014] Furthermore, the two ends of the second lifting beam are provided with slots for connecting the nacelle support.

[0015] Furthermore, the trolley is an electric trolley.

[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0017] 1. This utility model has a simple structure and high reliability. The yaw drive can be transported from the nacelle hoisting port of the wind turbine to the yaw drive installation position through the pulleys at the bottom of the second, first and third lifting beams in sequence, reducing the difficulty of transportation, improving the safety of operators, and greatly improving work efficiency.

[0018] 2. The gantry of this utility model can be adjusted in height and width according to actual needs, and is suitable for yaw drive hoisting operations of different models, making it highly versatile.

[0019] 3. The gantry and hanging beam of this utility model adopt a split / modular structure, which can be simply spliced ​​and assembled, reducing the on-site installation space requirements and operation difficulty. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the installation of this utility model. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0023] like Figures 1 to 2 As shown, this embodiment provides a yaw-driven hoisting fixture for a wind turbine generator set, including a first gantry 1, a second gantry 2, a first lifting beam 3, a second lifting beam 4, a third lifting beam 5, and a pulley 6. The first gantry 1 and the second gantry 2 are respectively fixed to the top of the bearing seat 9 and the gearbox elastic support 10 of the wind turbine generator set. The first lifting beam 3 spans the top of the first gantry 1, the second gantry 2, and the nacelle support 8 of the wind turbine generator set. The second lifting beam 4 spans the top of the nacelle support 8 of the wind turbine generator set, with one end close to the wind turbine... The nacelle hoisting port 11 of the generator set has one end located next to the first hoisting beam 3; the third hoisting beam 5 is fixed to the top of the first gantry 1 by straps, one end of which intersects with the first hoisting beam 3, and the other end extends above the yaw drive installation position; the bottom surfaces of the first hoisting beam 3, the second hoisting beam 4 and the third hoisting beam 5 are respectively provided with trolleys 6 for transporting the yaw drive; the yaw drive 12 is transported from the nacelle hoisting port 11 of the wind turbine generator set to the yaw drive installation position through the trolleys 6 at the bottom of the second hoisting beam 4, the first hoisting beam 3 and the third hoisting beam 5 in sequence.

[0024] The first lifting beam 3 is composed of multiple segmented beams connected in sequence. By replacing different segments, it can be adapted to different specifications of engine room length, making it more versatile.

[0025] Both the first gantry 1 and the second gantry 2 are composed of a gantry frame and a cross brace 201. The gantry frame is a rectangular structure consisting of two uprights 202 and two cross braces 203. Each of the two uprights and two cross braces is provided with multiple adjustment mounting holes 204 for adjusting the height or width of the gantry frame. The adjustment mounting holes are selected to connect the uprights and cross braces according to the actual height and width requirements (ensuring that the yaw drive can pass through the gantry frame), thus adapting to the hoisting operations of different models of yaw drives and making it more versatile.

[0026] The first lifting beam 3 is fixed to the crossbar 203 by the installation of the lifting bracket 7.

[0027] The second lifting beam 4 is provided with slots (not shown in the figure) at both ends for connecting the nacelle support 8. The second lifting beam 4 is quickly installed on the nacelle support 8 through the slots.

[0028] To reduce the workload of personnel, electric trolleys can be used.

[0029] The installation steps for the above-mentioned hoisting fixture are as follows:

[0030] Step 1: Tighten the first gantry to the bearing housing with a nut.

[0031] Step 2: Secure the second gantry to the gearbox elastic support with nuts.

[0032] Step 3: Place the first lifting beam in sections on the first gantry, the second gantry, and the nacelle support. Use mounting brackets and bolts to connect and fix the first lifting beam to the first gantry, the second gantry, and the nacelle support.

[0033] Step 4: Use shims to place at the bottom of the first and second gantry frames to level the first suspension beam.

[0034] Step 5: Place the second lifting beam on the nacelle support frame, and lock its slot into the nacelle support frame.

[0035] Step Six: Depending on the site conditions, use straps to secure the third lifting beam to the first gantry.

[0036] Step 7: Install the three trolleys on the bottom surfaces of the first, second, and third lifting beams, respectively.

[0037] The steps for using the above-mentioned hoisting tool are as follows:

[0038] Step 1: The yaw drive is lifted from the ground to the cargo hold at the rear of the engine room using a nacelle crane.

[0039] Step 2: Use the hand-operated hoist of the nacelle crane to move the yaw drive from the nacelle crane to the second lifting beam, and then use a pulley to move it to the intersection of the first and second lifting beams.

[0040] Step 3: Use a hand-operated hoist to transfer the yaw drive from the second lifting beam to the first lifting beam, and then use a pulley to move it to the intersection of the first and third lifting beams.

[0041] Step 4: Use a hand-operated hoist to move the yaw drive from the first lifting beam to the third lifting beam. Then use a pulley to move the yaw drive to the front end of the third lifting beam, that is, above the yaw drive installation position.

[0042] Step 5: Use a hand-operated hoist to lower the yaw drive from the third lifting beam to the yaw drive installation position to complete the hoisting.

[0043] The above description is only a preferred embodiment of this utility model patent, but the protection scope of this utility model patent is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed in this utility model patent, based on the technical solution and utility model patent concept of this utility model patent, shall fall within the protection scope of this utility model patent.

Claims

1. A yaw-driven hoisting fixture for wind turbine generator sets, characterized in that: The system includes a first gantry, a second gantry, a first lifting beam, a second lifting beam, a third lifting beam, and trolleys. The first and second gantry are respectively fixed to the top of the bearing housing and the elastic support of the gearbox of the wind turbine generator set. The first lifting beam spans the top of the first gantry, the second gantry, and the nacelle support of the wind turbine generator set. The second lifting beam spans the top of the nacelle support of the wind turbine generator set, with one end close to the nacelle lifting port of the wind turbine generator set and the other end located next to the first lifting beam. The third lifting beam is fixed to the top of the first gantry, with one end intersecting with the first lifting beam and the other end extending above the yaw drive mounting position. The bottom surfaces of the first, second, and third lifting beams are respectively provided with trolleys for transporting the yaw drive. The yaw drive is transported sequentially from the nacelle lifting port of the wind turbine generator set to the yaw drive mounting position via the trolleys at the bottom of the second, first, and third lifting beams.

2. The yaw drive hoisting fixture for wind turbine generator sets according to claim 1, characterized in that: The first lifting beam is composed of multiple segmented beams connected in sequence.

3. The yaw drive hoisting fixture for wind turbine generator sets according to claim 1, characterized in that: Both the first gantry and the second gantry are composed of a gantry frame and cross braces.

4. The yaw drive hoisting fixture for wind turbine generator sets according to claim 3, characterized in that: The door frame is a rectangular structure consisting of two uprights and two crossbars. Each of the two uprights and two crossbars is provided with multiple adjustment mounting holes for adjusting the height or width of the door frame. The adjustment mounting holes are selected to connect the uprights and crossbars according to the actual height and width requirements.

5. The yaw drive hoisting fixture for wind turbine generator sets according to claim 1, characterized in that: The first lifting beam is fixed to the first gantry and the second gantry by installing a lifting bracket.

6. The yaw drive hoisting fixture for wind turbine generator sets according to claim 1, characterized in that: The third lifting beam and the first gantry are connected by straps.

7. The yaw drive hoisting fixture for wind turbine generator sets according to claim 1, characterized in that: The second lifting beam has slots at both ends for connecting the nacelle support.

8. The yaw drive hoisting fixture for wind turbine generator sets according to claim 1, characterized in that: The trolley is an electric trolley.

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