Front base turnover machine of large wind generating set

Abstract

The utility model discloses a front base turnover machine of a large wind generating set, and relates to the technical field of wind generating set assembly. The device comprises a chassis, one side of the chassis is fixedly connected with a right-angle frame, the top of the chassis is fixedly provided with a support through supporting legs, and the top of the support is provided with a main body; an overturning assembly is arranged at the top of the support and comprises a first hydraulic cylinder. Through the connecting groove in the bottom of the main body and the shackle on the top of the main body, the first hydraulic cylinder and the second hydraulic cylinder can be connected with the bottom and the top of the main body respectively, and the hydraulic pump and the driving motor are started through the external controller; hydraulic oil in the second hydraulic cylinder can be conveyed into the first hydraulic cylinder through the first liquid conveying pipe and the second liquid conveying pipe, so that one end of the second hydraulic cylinder shrinks, one end of the first hydraulic cylinder extends, the movable rod is driven by the sliding sleeve to push the first hydraulic cylinder to move upwards, and the main body is turned over.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind turbine assembly, and particularly relates to a front base turnover machine for large wind turbines. Background Art

[0002] The front base turnover machine for large wind turbines: generally refers to the equipment used for installing and maintaining large wind turbines. This kind of equipment usually consists of a large hoisting mechanism, which can turn the front base of the large wind turbine to the horizontal position to install or replace components such as blades and bearings. By using the front base turnover machine, operators can perform maintenance and repair work more easily, improving work efficiency and safety.

[0003] For the front base turnover machine of large wind turbines in the prior art, it is usually necessary to accurately turn the front base of the generator at multiple angles. However, most of the existing turnover machines have insufficient operation accuracy, which is prone to the problem of inaccurate turning angle attitude, resulting in insufficient stability during turning and affecting the safety of the front base during turning.

[0004] Therefore, we provide a front base turnover machine for large wind turbines to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a front base turnover machine for large wind turbines, which solves the problems of insufficient stability and safety of the front base turnover machine of large wind turbines in the prior art during the turnover of the front base of the wind turbine through the cooperation of a turnover component and a limit component.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is a front base turnover machine for large wind turbines, including a chassis. One side of the chassis is fixedly connected with a right-angle frame. The top of the chassis is fixed with a bracket through support feet, and a main body is arranged on the top of the bracket;

[0008] A turnover component is arranged on the top of the bracket. The turnover component includes a first hydraulic cylinder. The first hydraulic cylinder is movably connected to one side of the top of the chassis. One side of the inner cavity of the chassis is fixedly connected with a driving motor. The output end of the driving motor is fixedly connected with a threaded rod. A sliding sleeve is threadedly connected to the surface of the threaded rod. The top of the sliding sleeve is movably connected with a movable rod. One end of the movable rod is movably connected to one side of the surface of the first hydraulic cylinder. A pulling part is arranged on the top of one side of the right-angle frame;

[0009] A limiting component is provided on one side of the bracket. The limiting component includes a clamping plate which is slidably connected to one side of the top of the bracket. A rotating block is movably connected inside the bracket. An inclined block slides on the top of one side of the rotating block, and a supporting block is slidably connected to the bottom of one side of the rotating block. A cylinder is fixedly connected to the bottom of one side of the right-angle frame, and one end of the cylinder is fixed to one side of the clamping plate.

[0010] The present utility model is further configured such that the pulling member includes a hook ring which is fixedly connected to the top of the main body. A second hydraulic cylinder is movably connected to the top of one side of the right-angle frame, and one end of the second hydraulic cylinder is movably connected to the hook ring through a connecting hook.

[0011] The present utility model is further configured such that a hydraulic pump is fixedly connected to one side of the top of the chassis. One end of the hydraulic pump is communicated with a first infusion pipe, and one end of the first infusion pipe is communicated with one side of the inner cavity of the first hydraulic cylinder. The other end of the hydraulic pump is communicated with a second infusion pipe, and one end of the second infusion pipe is communicated with one side of the surface of the second hydraulic cylinder.

[0012] The present utility model is further configured such that springs are fixedly connected to the front end and the rear end of one side of the bottom of the inclined block, and one end of each spring is fixed to one side of the top of the supporting block. A sliding groove is formed in one side of the inner cavity of the rotating block, and one side of the inclined block and the supporting block are both slidably connected to the inner cavity of the sliding groove.

[0013] The present utility model is further configured such that a connecting groove is formed at the bottom of the main body, and one end of the first hydraulic cylinder is movably connected to the inner cavity of the connecting groove through a connecting shaft.

[0014] The present utility model is further configured such that a placing block is fixedly connected to one side of the top of the bracket, the top of the placing block contacts one side of the bottom of the main body, an extension frame is fixedly connected to one side of the inner cavity of the bracket, a sliding groove is formed in the inner cavity of the extension frame, and the bottom of the clamping plate is slidably connected to the inner cavity of the sliding groove.

[0015] The present utility model is further configured such that a limiting groove is formed at the top of the inner cavity of the chassis, and one end of the movable rod is slidably connected to the inner cavity of the limiting groove.

[0016] The present utility model is further configured such that an extension groove is formed in one side of the inner cavity of the bracket, and one side of the surface of the first hydraulic cylinder is movably connected to the inner cavity of the extension groove.

[0017] The present utility model has the following beneficial effects:

[0018] 1. The utility model can connect the first hydraulic cylinder and the second hydraulic cylinder to the bottom and top of the main body respectively through the connecting groove at the bottom of the main body and the hook ring at the top. By starting the hydraulic pump and the driving motor through an external controller, the hydraulic oil in the second hydraulic cylinder can be transported to the first hydraulic cylinder through the first infusion pipe and the second infusion pipe, so that one end of the second hydraulic cylinder shrinks, one end of the first hydraulic cylinder extends, and the movable rod is driven by the sliding sleeve to push the first hydraulic cylinder to move upward, thereby flipping the main body.

[0019] 2. The utility model can place the main body on the top of the bracket through an external lifting device, support it through the placing block, and push the clamping plate to move through the cylinder, so that the bottom and top of the inclined block and the supporting block squeeze one side of the surface of the main body, thereby limiting one side of the main body, and driving the main body to flip through the driving motor and the air pump, so that the main body rotates around the surface of the rotating block in the inner cavity of the clamping plate as the axis.

[0020] Of course, it is not necessary for any product implementing the utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below.

[0022] Figure 1 It is a three-dimensional structure diagram of a front base turnover machine for a large wind turbine generator;

[0023] Figure 2 It is an exploded view of the chassis, bracket and main body in a front base turnover machine for a large wind turbine generator;

[0024] Figure 3 It is a schematic structural diagram of the top of the bracket in a front base turnover machine for a large wind turbine generator;

[0025] Figure 4 It is a schematic diagram of the internal structure of the clamping plate in a front base turnover machine for a large wind turbine generator;

[0026] Figure 5 It is a cross-sectional view of the chassis in a front base turnover machine for a large wind turbine generator.

[0027] In the drawings: 1. Chassis; 2. Right-angle frame; 3. Bracket; 4. Main body; 5. First hydraulic cylinder; 6. Driving motor; 7. Threaded rod; 8. Sliding sleeve; 9. Movable rod; 10. Clamping plate; 11. Rotating block; 12. Inclined block; 13. Supporting block; 14. Cylinder; 15. Hook ring; 16. Second hydraulic cylinder; 17. Hydraulic pump; 18. First infusion pipe; 19. Second infusion pipe; 20. Spring; 21. Extension frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be described. The described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Specific Embodiment 1

[0030] Please refer to Figures 1-5 , the present utility model is a front base turnover machine for a large wind turbine generator, including a chassis 1. A right-angle frame 2 is fixedly connected to one side of the chassis 1. A bracket 3 is fixed on the top of the chassis 1 through a support leg. A main body 4 is arranged on the top of the bracket 3;

[0031] A turnover assembly is arranged on the top of the bracket 3. The turnover assembly includes a first hydraulic cylinder 5. The first hydraulic cylinder 5 is movably connected to one side of the top of the chassis 1. A driving motor 6 is fixedly connected to one side of the inner cavity of the chassis 1. The output end of the driving motor 6 is fixedly connected to a threaded rod 7. A sliding sleeve 8 is threadedly connected to the surface of the threaded rod 7. The top of the sliding sleeve 8 is movably connected to a movable rod 9. One end of the movable rod 9 is movably connected to one side of the surface of the first hydraulic cylinder 5. A pulling member is arranged on the top of one side of the right-angle frame 2;

[0032] A limiting assembly is arranged on one side of the bracket 3. The limiting assembly includes a clamping plate 10. The clamping plate 10 is slidably connected to one side of the top of the bracket 3. A rotating block 11 is movably connected to the inner cavity of the bracket 3. An inclined block 12 slides on the top of one side of the rotating block 11. A supporting block 13 is slidably connected to the bottom of one side of the rotating block 11. A cylinder 14 is fixedly connected to the bottom of one side of the right-angle frame 2. One end of the cylinder 14 is fixedly connected to one side of the clamping plate 10.

[0033] Specifically: One side of the right-angle frame 2 is fixed to one side of the chassis 1, and the top extends to the outside of the chassis 1. Three support legs are fixedly connected to the bottom of the bracket 3, and the bottoms of the support legs are fixed to the top of the chassis 1. When the main body 4 is placed on the top of the bracket 3, one side of the bottom contacts the top of the placing block, and the other side of the surface is located between the inclined block 12 and the supporting block 13. One end of the first hydraulic cylinder 5 is rotatably connected to one side of the top of the chassis 1 through a bearing. One end of the threaded rod 7 is fixedly connected to the output end of the driving motor 6, and the other end is rotatably connected to one side of the inner cavity of the chassis 1 through a bearing. A limiting block is fixedly connected to the bottom of the sliding sleeve 8. A square groove is opened at the bottom of the inner cavity of the chassis 1. The bottom of the limiting block is slidably connected to the inner cavity of the square groove. One end of the movable rod 9 is movably connected to the top of the sliding sleeve 8, and the other end is movably connected to one side of the surface of the non-extended end of the first hydraulic cylinder 5. The rotating block 11 is rotatably connected to the inner cavity of the clamping plate 10 through a bearing. One side of the inclined block 12 and the supporting block 13 is slidably connected to one side of the inner cavity of the rotating block 11, so as to clamp one side of the surface of the main body 4. One end of the cylinder 14 is fixedly connected to the front end or the rear end of one side of the clamping plate 10, and the other end is fixedly connected to the bottom of one side of the right-angle frame 2. Specific Embodiment 2

[0035] Please refer to Figures 1-5, on the basis of the first specific embodiment, the pulling member includes a hook ring 15, the hook ring 15 is fixedly connected to the top of the main body 4, the top of one side of the right-angle frame 2 is movably connected to a second hydraulic cylinder 16, one end of the second hydraulic cylinder 16 is movably connected to the hook ring 15 through a connecting hook, one side of the top of the chassis 1 is fixedly connected to a hydraulic pump 17, one end of the hydraulic pump 17 is communicated with a first infusion pipe 18, one end of the first infusion pipe 18 is communicated with one side of the inner cavity of the first hydraulic cylinder 5, the other end of the hydraulic pump 17 is communicated with a second infusion pipe 19, one end of the second infusion pipe 19 is communicated with one side of the surface of the second hydraulic cylinder 16, both the front end and the rear end of one side of the bottom of the inclined block 12 are fixedly connected with springs 20, one end of the spring 20 is fixedly connected with one side of the top of the support block 13, a chute is opened on one side of the inner cavity of the rotating block 11, both the inclined block 12 and the support block 13 are slidably connected to the inner cavity of the chute, a connecting groove is opened at the bottom of the main body 4, one end of the first hydraulic cylinder 5 is movably connected to the inner cavity of the connecting groove through a connecting shaft, one side of the top of the support 3 is fixedly connected with a placing block, the top of the placing block is in contact with one side of the bottom of the main body 4, one side of the inner cavity of the support 3 is fixedly connected with an extension frame 21, a sliding groove is opened in the inner cavity of the extension frame 21, the bottom of the clamping plate 10 is slidably connected to the inner cavity of the sliding groove, a limiting groove is opened at the top of the inner cavity of the chassis 1, one end of the movable rod 9 is slidably connected to the inner cavity of the limiting groove, an extension groove is opened on one side of the inner cavity of the support 3, and one side of the surface of the first hydraulic cylinder 5 is movably connected to the inner cavity of the extension groove.

[0036] Specifically: The hook ring 15 is fixed to the top of the main body 4, the extended end of the second hydraulic cylinder 16 is movably connected with a connecting hook, so that the second hydraulic cylinder 16 can be connected to the top of the main body 4. The hydraulic pump 17 can transport and extract the hydraulic oil inside the first hydraulic cylinder 5 and the second hydraulic cylinder 16 through the first infusion pipe 18 and the second infusion pipe 19, so that when one of them is driven to extend, the other hydraulic cylinder contracts. Both the first infusion pipe 18 and the second infusion pipe 19 are telescopic hoses to facilitate rotation with the two hydraulic cylinders. The two ends of the spring 20 are respectively fixed to the bottom of the inclined block 12 and the top of the support block 13 to limit the main body 4 by the inclined block 12 and the support block 13. The length of the inclined block 12 is slightly longer than that of the support block 13. Both the inclined block 12 and the support block 13 are slidably connected to one side of the inner cavity of the rotating block 11. The connecting groove enables one end of the first hydraulic cylinder 5 to be movably connected to the bottom of the main body 4, achieving the purpose of convenient connection and disconnection. The placing block can support the main body 4 when placed on the top of the support 3. The extension frame 21 enables the clamping plate 10 to slide on one side of the top of the support 3. The limiting groove enables the movable rod 9 to extend out of the inner cavity of the chassis 1 and be connected to the first hydraulic cylinder 5. The extension groove enables the first hydraulic cylinder 5 to extend to the outside of the support 3 and be connected to the bottom of the main body 4.

[0037] The working principle of the present utility model is as follows: When it is necessary to turn over the front base of a large wind turbine generator, first, use an external lifting device to place the front base on the top of the placing block at the top of the bracket 3. Then, start the cylinder 14 through an external controller. The cylinder 14 drives the clamping plate 10 to move, and the clamping plate 10 drives the rotating block 11 to move. The rotation drives the inclined block 12 and the supporting block 13 to squeeze one side of the main body 4. And when squeezing, the elasticity of the spring 20 is used to limit one side of the surface of the main body 4 by the bottom of the inclined block 12 and the top of the supporting block 13, so as to facilitate the main body 4 to rotate around this point as the axis during subsequent turning;

[0038] Then, connect the hook ring 15 at the top of the main body 4 and one end of the second hydraulic cylinder 16 to the connecting hook, and connect one end of the first hydraulic cylinder 5 through the connecting groove at the bottom of the main body 4. Then, start the motor and the air pump simultaneously. The motor drives the threaded rod 7 to rotate, the threaded rod 7 drives the sliding sleeve 8 to move, and the sliding sleeve 8 drives the movable rod 9 to rotate;

[0039] Meanwhile, the air pump works to transport the hydraulic oil inside the second hydraulic cylinder 16 to the first infusion tube 18 through the second infusion tube 19, and pump it into the first hydraulic cylinder 5 through the first infusion tube 18, so that one end of the second hydraulic cylinder 16 contracts. At the same time, one end of the first hydraulic cylinder 5 extends, and then the movable rod 9 moves and supports the surface of the first hydraulic cylinder 5, so that the first hydraulic cylinder 5 and the second hydraulic cylinder 16 drive the main body 4 to rotate around one side of the main body 4 inside the cavity of the inclined block 12 and the supporting block 13. This way of turning has a large turning angle, stable operation, and high safety, and thus the turning work of the front base of the wind turbine generator can be completed.

[0040] The standard parts used in the present utility model can all be purchased from the market, and can also be customized according to the descriptions in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. The control method is automatically controlled through a control unit. The control circuit of the control unit can be realized by simple programming by those skilled in the art, which belongs to the common general knowledge in this field. Therefore, the control method and the circuit connection are not explained in detail in the present utility model.

[0041] The above - disclosed preferred embodiments of the present utility model are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model.

Claims

1. A front base tilter for a large wind turbine generator, comprising a chassis (1), characterized in that: One side of the chassis (1) is fixedly connected with a right-angle frame (2). A bracket (3) is fixed on the top of the chassis (1) through support feet, and a main body (4) is arranged on the top of the bracket (3). A flipping assembly is arranged on the top of the bracket (3). The flipping assembly includes a first hydraulic cylinder (5). The first hydraulic cylinder (5) is movably connected to one side of the top of the chassis (1). A driving motor (6) is fixedly connected to one side of the inner cavity of the chassis (1). The output end of the driving motor (6) is fixedly connected with a threaded rod (7). A sliding sleeve (8) is threadedly connected to the surface of the threaded rod (7). A movable rod (9) is movably connected to the top of the sliding sleeve (8). One end of the movable rod (9) is movably connected to one side of the surface of the first hydraulic cylinder (5). A pulling member is arranged on the top of one side of the right-angle frame (2). A limiting assembly is arranged on one side of the bracket (3). The limiting assembly includes a clamping plate (10). The clamping plate (10) is slidably connected to one side of the top of the bracket (3). A rotating block (11) is movably connected to the inner cavity of the bracket (3). An inclined block (12) slides on the top of one side of the rotating block (11). A support block (13) is slidably connected to the bottom of one side of the rotating block (11). A cylinder (14) is fixedly connected to the bottom of one side of the right-angle frame (2). One end of the cylinder (14) is fixed to one side of the clamping plate (10).

2. The front base turnover machine of a large wind turbine according to claim 1, characterized in that: The pulling member includes a hook ring (15). The hook ring (15) is fixedly connected to the top of the main body (4). A second hydraulic cylinder (16) is movably connected to the top of one side of the right-angle frame (2). One end of the second hydraulic cylinder (16) is movably connected to the hook ring (15) through a connecting hook.

3. A front base turnover machine for a large wind turbine generator according to claim 1, characterized in that: A hydraulic pump (17) is fixedly connected to one side of the top of the chassis (1). One end of the hydraulic pump (17) is communicated with a first infusion pipe (18). One end of the first infusion pipe (18) is communicated with one side of the inner cavity of the first hydraulic cylinder (5). The other end of the hydraulic pump (17) is communicated with a second infusion pipe (19). One end of the second infusion pipe (19) is communicated with one side of the surface of the second hydraulic cylinder (16).

4. A front base turnover machine for a large wind turbine generator according to claim 1, characterized in that: Springs (20) are fixedly connected to the front end and the rear end of the bottom of one side of the inclined block (12). One end of the springs (20) is fixed to the top of one side of the support block (13). A sliding groove is formed in one side of the inner cavity of the rotating block (11). One side of the inclined block (12) and the support block (13) are both slidably connected to the inner cavity of the sliding groove.

5. A front base tilter for a large wind turbine generator set according to claim 1, characterized in that: A connecting groove is formed in the bottom of the main body (4). One end of the first hydraulic cylinder (5) is movably connected to the inner cavity of the connecting groove through a connecting shaft.

6. The front base tilter of a large wind turbine generator according to claim 1, characterized in that: A placing block is fixedly connected to one side of the top of the bracket (3). The top of the placing block is in contact with one side of the bottom of the main body (4). An extension frame (21) is fixedly connected to one side of the inner cavity of the bracket (3). A sliding groove is formed in the inner cavity of the extension frame (21). The bottom of the clamping plate (10) is slidably connected to the inner cavity of the sliding groove.

7. A front base turnover machine for a large wind turbine according to claim 1, characterized in that: A limiting groove is formed in the top of the inner cavity of the chassis (1). One end of the movable rod (9) is slidably connected to the inner cavity of the limiting groove.

8. A front base tilter for a large wind turbine generator according to claim 1, characterized in that: An extension groove is formed in one side of the inner cavity of the bracket (3). One side of the surface of the first hydraulic cylinder (5) is movably connected to the inner cavity of the extension groove.

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