Large wind turbine stator automatic lamination machine

Abstract

The application provides a large wind power generator stator automatic lamination machine, relates to the technical field of stator assembly, and comprises a suction cup jaw mechanism, a base and a lifting hydraulic mechanism, the upper side of the suction cup jaw mechanism is fixedly connected with a triangular frame mechanism, and the middle part of the triangular frame mechanism is fixedly installed with a rotating mechanism. The triangular frame mechanism drives the suction cup jaw mechanism to move outward along the normal direction of the triangular frame mechanism, the suction cup jaw mechanism sucks down the sheet material, the suction cup jaw mechanism puts down the sheet material after aligning the sheet material to the positioning column, the sheet material slides downward along the inside of the positioning column and the outer shell, the triangular frame mechanism and the suction cup jaw mechanism move, then one sheet of sheet material is sucked, and the triangular frame mechanism is rotated clockwise and counterclockwise to stack the sheet material, the stacking of one layer of sheet material is completed, the above operation is continued, the assembly of the stator sheet material is completed through multiple cycle operations according to the length of the stator, the lamination operation steps are simplified, the working speed of lamination is improved, and the efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of stator assembly technology, and more particularly to an automatic stator lamination machine for large wind turbine generators. Background Technology

[0002] With the rapid development and maturation of wind power technology, wind power has extended to areas that are difficult for the power grid to reach, bringing them a lot of convenience. At the same time, the proportion of wind power generation in social electricity consumption is also constantly increasing, which has led to a continuous increase in the use of wind turbine generators, especially the increasing demand for large wind turbine generators.

[0003] In existing technologies, such as Chinese patent CN208597006U, an automatic lamination machine for direct-drive wind turbine stator cores is disclosed. This machine includes at least a lower pressure plate, supports, a base, a circular guide rail, a large gear ring, multiple lamination devices, a conductor drag chain, a material box, and a stator core support. The stator core support is placed on the lower pressure plate and fixed to it by multiple supports. The lower end of the supports is located inside the top surface of the base. A circular guide rail and a large gear ring are installed on the outside of the top surface of the base. The centers of the circular guide rail and the large gear ring are concentric with the center of the circle formed by the outer periphery of the stator core support. Multiple lamination devices are evenly distributed on the circular guide rail, and a conductor drag chain is installed at the bottom of each lamination device. The lamination device contains a sheet material sorting device and a lamination thickness measuring device. The lamination machine can store a certain amount of sheet material, rotate along the circular guide rail, continuously grab and place sheet material mechanically, complete the lamination, and then sort and align each layer of sheet material before measuring the thickness of the stacked sheet material.

[0004] However, in the existing technology, the stacking machine mechanically grabs and places the sheet material, and then sorts the sheet material and aligns the layers of sheet material. This series of operations involves many steps, and the time for the machine to complete one assembly is relatively long, resulting in low efficiency of the stacking machine when assembling sheet material and a long cycle required to complete the internal stator assembly of a wind turbine. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that the stacking machine has many steps in the process of mechanically grabbing and placing the sheet material, followed by sheet material sorting and vertical alignment of each layer of sheet material. The time it takes for the machine to complete one assembly is relatively long, resulting in low efficiency of the stacking machine in assembling sheet material and a long cycle required to complete the internal stator assembly of a wind turbine.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a large-scale wind turbine stator automatic stacking machine, comprising a suction cup claw mechanism, a base and a lifting hydraulic mechanism, wherein a triangular frame mechanism is fixedly connected to the upper side of the suction cup claw mechanism, a rotating mechanism is fixedly installed in the middle of the triangular frame mechanism, a positioning column is fixedly connected to the upper side of the base, a sheet material temporary placement mechanism is rotatably connected to the upper side of the base, and an outer shell is fixedly connected to the lower outer side of the positioning column.

[0007] Preferably, a spare sheet material stack is movably engaged on the upper side of the sheet material temporary placement mechanism, and the sheet material temporary placement mechanism is located below the triangular frame mechanism.

[0008] Preferably, the sheet material temporary placement mechanism is located outside the outer casing, and the spare sheet material stack is located below the triangular frame mechanism.

[0009] Preferably, a single sheet is movably connected below the suction cup claw mechanism, and the interior of the single sheet is sleeved with the outer surface of the positioning post.

[0010] Preferably, the outer side of the single sheet material is engaged with the inner side of the outer shell, and the sheet material placement mechanism is located below the suction cup claw mechanism.

[0011] Preferably, an adjustable inner locking block is fixedly connected to the lower part of the outer surface of the rotating mechanism, and the outer surface of the adjustable inner locking block overlaps with the inner side of the single sheet material.

[0012] Preferably, a lifting hydraulic mechanism is fixedly connected to the lower side of the base, and the lower side of the rotating mechanism is fixedly connected to the upper side of the base.

[0013] This invention utilizes the retraction of a hydraulic cylinder in a triangular frame mechanism to drive a suction cup claw mechanism to move outward along the normal direction of the triangular frame mechanism. The suction cup claw mechanism picks up the sheet material downward and moves it above the positioning post. After aligning the sheet material with the positioning post, the suction cup claw mechanism lowers it, and the sheet material slides downward along the inner side of the positioning post and the outer shell. The triangular frame mechanism and the suction cup claw mechanism move, then pick up one sheet material and return to the initial position. At this time, the rotating mechanism starts, driving the triangular frame mechanism to rotate counterclockwise by forty degrees, aligning it with the positioning post below that part. Then, the sheet material is lowered, the rotating mechanism rotates, and the triangular frame mechanism returns to its initial position. The triangular frame mechanism and the suction cup claw mechanism... The claw mechanism moves again, picking up another sheet and returning to its initial position. At this time, the rotating mechanism starts, driving the triangular frame mechanism to rotate clockwise by forty degrees, aligning it with the positioning post below this section. Thus, one branch of the triangular frame mechanism completes the stacking of sheets within a 120-degree range. The three branches of the triangular frame mechanism work simultaneously, completing the assembly of sheets within a 360-degree angle range of the circular stator. This completes the stacking of one layer of sheets. The above operation is repeated multiple times according to the length of the stator to complete the assembly of the entire stator sheet. This simplifies the stacking operation steps, increases the stacking speed, and improves production capacity.

[0014] By placing the prepared spare sheet stacks on three sheet placement mechanisms, and rotating the sheet placement mechanism 180 degrees to place another set of spare sheet stacks, the process seamlessly connects the spare sheet stacks after one set is placed during the stacking process. The spare sheet stack is then rotated directly to the working position by rotating the sheet placement mechanism. The machine does not need to stop and wait for the material to be prepared, reducing unnecessary time waste and shortening the work cycle. Attached Figure Description

[0015] Figure 1 A three-dimensional structural schematic diagram of a large-scale wind turbine stator automatic lamination machine is provided for this invention;

[0016] Figure 2 This invention presents a front view of the structure of a large-scale wind turbine stator automatic lamination machine;

[0017] Figure 3 The present invention provides a top view of the structure of an automatic stator lamination machine for large wind turbine generators.

[0018] Legend: 1. Triangular frame mechanism; 2. Suction cup claw mechanism; 3. Spare sheet stack; 4. Sheet temporary placement mechanism; 5. Adjustable inner locking block; 6. Positioning column; 7. Base; 8. Outer shell; 9. Lifting hydraulic mechanism; 10. Individual sheet; 11. Rotation mechanism. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Example 1, such as Figure 1-3 As shown, this invention provides a large-scale automatic stator stacking machine for wind turbines, including a suction cup claw mechanism 2, a base 7, and a lifting hydraulic mechanism 9. A triangular frame mechanism 1 is fixedly connected to the upper side of the suction cup claw mechanism 2, and a rotating mechanism 11 is fixedly installed in the middle of the triangular frame mechanism 1. A positioning column 6 is fixedly connected to the upper side of the base 7, and a sheet material placement mechanism 4 is rotatably connected to the upper interior of the base 7. A housing 8 is fixedly connected to the lower outer side of the positioning column 6. The hydraulic cylinder in the triangular frame mechanism 1 retracts, causing the suction cup claw mechanism 2 to move outward along the normal direction of the triangular frame mechanism 1. The suction cup claw mechanism 2 picks up the sheet material downward and moves it above the positioning column 6. After aligning the sheet material with the positioning column 6, the suction cup claw mechanism 2 lowers it. The sheet material slides downward along the inner side of the positioning column 6 and the housing 8. The triangular frame mechanism 1 and the suction cup claw mechanism 2 move, then pick up one sheet material and return to the initial position. At this time, the rotating mechanism... When mechanism 11 is activated, it drives the triangular frame mechanism 1 to rotate counterclockwise by 40 degrees, aligning it with the positioning post 6 below this section. Then, the sheet material is placed down, the rotating mechanism 11 rotates, and the triangular frame mechanism 1 returns to its initial position. The triangular frame mechanism 1 and the suction cup claw mechanism 2 move again to pick up another sheet material and return to their initial positions. At this time, the rotating mechanism 11 is activated, driving the triangular frame mechanism 1 to rotate clockwise by 40 degrees, aligning it with the positioning post 6 below this section. Thus, one branch of the triangular frame mechanism 1 completes the stacking of sheet materials within a 120-degree range. The three branches of the triangular frame mechanism 1 work simultaneously, that is, complete the assembly of sheet materials within a 360-degree angle range of the circular stator. This completes the stacking of one layer of sheet materials. The above operation is continued, and multiple cycles are performed according to the length of the stator to complete the assembly of the entire stator sheet materials. This simplifies the operation steps during stacking, increases the stacking speed, and improves production capacity.

[0021] like Figure 1 As shown, a spare sheet stack 3 is movably attached to the upper side of the sheet material temporary placement mechanism 4. The sheet material temporary placement mechanism 4 is located below the triangular frame mechanism 1. The prepared spare sheet stack 3 is placed on the three sheet material temporary placement mechanisms 4 respectively. The sheet material temporary placement mechanism 4 is rotated 180 degrees and another set of spare sheet stack 3 is placed. The sheet material temporary placement mechanism 4 is located below the triangular frame mechanism 1 to facilitate subsequent retrieval.

[0022] like Figure 1 As shown, the sheet material temporary placement mechanism 4 is located outside the outer shell 8, and the spare sheet material pile 3 is located below the triangular frame mechanism 1; the spare sheet material pile 3 is located below the triangular frame mechanism 1, which facilitates the transport of the sheet material from the spare sheet material pile 3 taken from the sheet material temporary placement mechanism 4 to the inner side of the outer shell 8.

[0023] like Figure 1As shown, a single sheet material 10 is movably connected to the lower part of the suction cup claw mechanism 2. The interior of the single sheet material 10 is sleeved with the outer surface of the positioning post 6. The suction cup claw mechanism 2 picks up the single sheet material 10 for transfer. The positioning post 6 is used to limit and align the single sheet material 10 without the need for additional sorting operations.

[0024] like Figure 1 As shown, the outer side of the single sheet 10 is engaged with the inner side of the outer shell 8, and the sheet temporary placement mechanism 4 is located below the suction cup claw mechanism 2. The sheet temporary placement mechanism 4 stores a temporary spare sheet pile 3. It is located below the suction cup claw mechanism 2 to facilitate the suction of the suction cup claw mechanism 2. With the cooperation of the positioning post 6 and the outer shell 8, the single sheet 10 slides accurately downward in the outer shell 8.

[0025] like Figure 1 As shown, an adjustable inner locking block 5 is fixedly connected to the lower part of the outer surface of the rotating mechanism 11. The outer surface of the adjustable inner locking block 5 overlaps with the inner side of the single sheet material 10. The function of the adjustable inner locking block 5 is to restrict the single sheet material 10 from the inside and prevent misalignment.

[0026] like Figure 1 As shown, a lifting hydraulic mechanism 9 is fixedly connected to the lower side of the base 7, and the lower side of the rotating mechanism 11 is fixedly connected to the upper side of the base 7; the lifting hydraulic mechanism 9 moves up and down, vibrating the sheet material at the upper and lower positions to avoid gaps between the upper and lower sheet materials.

[0027] The operating method and working principle of this device are as follows: Place the prepared spare sheet material piles 3 on the three sheet material temporary placement mechanisms 4 respectively. Rotate the sheet material temporary placement mechanism 4 180 degrees and place another set of spare sheet material piles 3. The hydraulic cylinder in the triangular frame mechanism 1 retracts, driving the suction cup claw mechanism 2 to move outward along the normal direction of the triangular frame mechanism 1. The suction cup claw mechanism 2 picks up the individual sheet material 10 from the spare sheet material pile 3 and moves it above the positioning post 6. After aligning the individual sheet material 10 with the positioning post 6, the suction cup claw mechanism 2 lowers it. The individual sheet material 10 slides down along the inner side of the positioning post 6 and the outer shell 8. The triangular frame mechanism 1 and the suction cup claw mechanism 2 move, then pick up one individual sheet material 10 and return to the initial position. At this time, the rotating mechanism 11 starts, driving the triangular frame mechanism 1 to rotate counterclockwise. Rotate forty degrees, align with the positioning post 6 below this section, then place the single sheet material 10 down. The rotating mechanism 11 rotates, and the triangular frame mechanism 1 returns to its initial position. The triangular frame mechanism 1 and the suction cup claw mechanism 2 move again, picking up another single sheet material 10 and returning to its initial position. At this time, the rotating mechanism 11 starts, driving the triangular frame mechanism 1 to rotate forty degrees clockwise, aligning with the positioning post 6 below this section. Thus, one branch of the triangular frame mechanism 1 completes the stacking of the sheet material within a 120-degree range. The three branches of the triangular frame mechanism 1 work simultaneously, that is, complete the assembly of the sheet material within a 360-degree angle range of the circular stator. Thus, the stacking of one layer of single sheet material 10 is completed. Continue the above operation, and repeat the cycle multiple times according to the length of the stator to complete the assembly of the entire stator sheet material.

Claims

1. A large-scale wind turbine stator automatic lamination machine, comprising a suction cup claw mechanism, a base, and a lifting hydraulic mechanism, characterized in that: A triangular frame mechanism is fixedly connected to the upper side of the suction cup claw mechanism. A rotating mechanism is fixedly installed in the middle of the triangular frame mechanism. A positioning post is fixedly connected to the upper side of the base. A sheet material placement mechanism is rotatably connected to the upper side of the base. A housing is fixedly connected to the lower outer side of the positioning post. A spare sheet material stack is movably engaged on the upper side of the sheet material placement mechanism. The sheet material placement mechanism is located below the triangular frame mechanism. An adjustable inner locking block is fixedly connected to the lower outer surface of the rotating mechanism. The outer surface of the adjustable inner locking block overlaps with the inner side of the single sheet material. A single sheet material is movably connected to the lower side of the suction cup claw mechanism. The interior of the single sheet material is sleeved with the outer surface of the positioning post. The outer side of the single sheet material is engaged with the inner side of the housing. The sheet material placement mechanism is located below the suction cup claw mechanism.

2. The large-scale wind turbine stator automatic lamination machine according to claim 1, characterized in that: The sheet material temporary placement mechanism is located on the outside of the outer casing, and the spare sheet material stack is located below the triangular frame mechanism.

3. The large-scale wind turbine stator automatic lamination machine according to claim 1, characterized in that: A lifting hydraulic mechanism is fixedly connected to the lower side of the base, and the lower side of the rotating mechanism is fixedly connected to the upper side of the base.

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