Magnetic steel assembly tool for wind driven generator

Abstract

The utility model discloses a wind driven generator magnetic steel assembling tool which comprises a first press-in tool and a second press-in tool which are used for pressing strong magnetic steel in different sequences into corresponding reserved spaces, the strong magnetic steel is installed by adopting the tool according to the following steps, the difficulty of installation and forming of the strong magnetic steel can be greatly reduced, the production efficiency is improved, and the production cost is reduced. The method comprises the following steps: S1, enabling an annular part to surround a vibrator, and forming an interval space between the annular part and the vibrator; s2, a first press-in tool is matched with the interval space, the first press-in tool and the axial end face of the vibrator are supported through an annular component, and a first press-fitting hole is formed in the first press-in tool; s3, assembling a first layer of magnetic steel on the outer circumferential surface of the vibrator, wherein the first layer of magnetic steel is formed by matching one to n pieces of strong magnetic steel end to end along the circumferential direction of the vibrator; and S4, if multiple layers of magnetic steel need to be assembled on the outer peripheral surface of the vibrator, repeating the steps S2 and S3 in the mounting mode of the other layers of magnetic steel.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine generators, in particular to a magnetic steel assembly tool for wind turbine generators. Background Art

[0002] Wind power generation is a clean energy source. Strong magnetic steel, as the key power generation component in the wind turbine, has strong magnetic properties. As the most important power generation component in wind power projects, strong magnetic steel adopts an innovative "vibration" method. Therefore, new concepts and great tests are adopted in the distribution of magnetic steel, magnetic field force and coils, and changes and innovations are made again and again during the design and assembly process.

[0003] The strong magnetic steel on the vibrator and stator has extremely strong magnetism, which not only has extremely high requirements on the working environment (there must not be any ferromagnetic objects around during the assembly process, otherwise the strong magnetic attraction alone will bring a huge risk of collision), but also the time that people are in direct contact with the strong magnetic steel cannot be too long, which poses huge physical and psychological challenges; therefore, how to improve the convenience and efficiency of strong magnetic steel assembly and ensure the safety of assembly personnel is the current problem. Summary of the invention

[0004] In view of the above problems, the utility model provides a wind turbine generator magnetic steel assembly tool, which greatly reduces the difficulty of installing and forming strong magnetic steel, speeds up production efficiency, and protects product and personal safety.

[0005] The technical solutions to the above technical problems are as follows:

[0006] A wind turbine magnetic steel assembly tool, comprising a first press-in tool for press-fitting odd-numbered strong magnetic steels into corresponding reserved spaces, and a second press-in tool for press-fitting even-numbered strong magnetic steels into corresponding reserved spaces;

[0007] The first press-fitting tool comprises a first positioning block, a first guide block, and a second guide block, wherein the first press-fitting hole is arranged on the first positioning block, one end of the first guide block is fixed to the first positioning block, one end of the second guide block is fixed to the first positioning block, the spacing between the first guide block and the second guide block is equal to the length of the first press-fitting hole, and the height of the first guide block is greater than the height of the second guide block;

[0008] The second press-in tooling includes a second positioning block, a third guide block, and a fourth guide block. The second positioning block is provided with a second press-fitting hole. One end of the third guide block is fixed to the second positioning block. One end of the fourth guide block is fixed to the second positioning block. The distance between the third guide block and the fourth guide block is equal to the length of the second press-fitting hole. The height of the third guide block is equal to that of the fourth guide block.

[0009] Preferably, the first guide block has a first guide surface for guiding one end of any one piece of strong magnetic steel, and the first guide surface is located on the same plane as the first hole wall surface in the first press-fit hole. The second guide block has a second guide surface for guiding the other end of any one piece of strong magnetic steel, and the second guide surface is located on the same plane as the second hole wall surface in the first press-fit hole.

[0010] Preferably, the width of the first positioning block is greater than the width of the first guide block and the second guide block, and a first inner shoulder and a first outer shoulder are respectively formed between the first positioning block and the first guide block and the second guide block, the first inner shoulder cooperates with the axial end face of the vibrator, and the first outer shoulder cooperates with the axial end face of the annular component.

[0011] Preferably, a first mounting hole is provided on the first positioning block, and a first threaded hole is provided on the axial end face of the annular component or the vibrator. When the first press-in tool is located at the position for pressing the strong magnetic steel, a screw is passed through the first mounting hole and threadedly connected to the first threaded hole to fix the first press-in tool to the annular component or the vibrator.

[0012] Preferably, the third guide block has a third guide surface for guiding one end of any one piece of strong magnetic steel, and the third guide surface is located on the same plane as the first side wall surface in the second press-fitting hole. The fourth guide block has a fourth guide surface for guiding the other end of any one piece of strong magnetic steel, and the fourth guide surface is located on the same plane as the second side wall surface in the second press-fitting hole.

[0013] Preferably, the width of the second positioning block is greater than the width of the third guide block and the fourth guide block, and a second inner shoulder and a second outer shoulder are formed between the second positioning block and the width of the third guide block and the fourth guide block, respectively, the second inner shoulder cooperates with the axial end face of the vibrator, and the second outer shoulder cooperates with the axial end face of the annular component.

[0014] The installation of strong magnetic steel by using the above-mentioned wind turbine magnetic steel assembly tooling includes the following steps:

[0015] S1, making the annular component surround the vibrator, and forming a spacing space between the annular component and the vibrator;

[0016] S2, matching the first press-in tool with the spacing space, and the first press-in tool is supported by the annular component and the axial end surface of the vibrator, and the first press-in tool is provided with a first press-in hole;

[0017] S3, assembling a first layer of magnetic steel on the outer circumferential surface of the vibrator, wherein the first layer of magnetic steel is formed by one to n pieces of strong magnetic steel fitting end to end along the circumferential direction of the vibrator, and the assembly process is: fitting the first piece of strong magnetic steel with the first press-fitting hole, applying pressure to the first piece of strong magnetic steel, so that the first piece of strong magnetic steel passes through the first press-fitting hole and moves to a designated position fitting with the vibrator, fixing the first piece of strong magnetic steel with the vibrator by screws, and installing the remaining strong magnetic steels in the first layer of magnetic steel by repeating steps S2 and S3;

[0018] S4, if multiple layers of magnetic steel need to be assembled on the outer peripheral surface of the vibrator, the installation method of the remaining layers of magnetic steel repeats steps S2 and S3.

[0019] The beneficial effects of the utility model are:

[0020] The utility model uses the first press-in tool and the annular component to press the strong magnetic steel downward from the first press-in hole, and then presses it tightly through the front screw to fix the strong magnetic steel on the vibrator to prevent it from moving; because the strong magnetic steel has strong repulsiveness in contact, the strong magnetic steel is first installed by skipping, and after all the strong magnetic steel is completely fixed, it is precisely positioned by the second press-in tool, and then the second press-in tool is used to install the strong magnetic steel. The use of the utility model can not only improve efficiency and simplify installation steps, but also reduce the product damage rate and the risk rate of installers being squeezed by strong magnets. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the magnetic steel assembly of a wind turbine.

[0022] Figure 2 For Figure 1 A schematic diagram with some parts hidden on the basis of the model.

[0023] Figure 3 It is a three-dimensional diagram of the first press-in tooling.

[0024] Figure 4 It is a three-dimensional view of the first press-in tool in another direction.

[0025] Figure 5 It is a three-dimensional diagram of the second press-in tool.

[0026] Figure 6 It is a three-dimensional view of the second press-fitting tool in another direction.

[0027] Markings in the accompanying drawings: annular component 1, vibrator 2, first threaded hole 2a, second through hole 2b, spacing space 3, first press-fit tooling 4, first press-fit hole 4a, first hole wall 4a1, second hole wall 4a2, first positioning block 4b, first guide block 4c, second guide block 4d, first guide surface 4e, second guide surface 4f, first inner shoulder 4g, first outer shoulder 4h, first mounting hole 4i, second press-fit tooling 5, second press-fit hole 5a, first side wall 5a1, second side wall 5a2, second positioning block 5b, third guide block 5c, fourth guide block 5d, third guide surface 5e, fourth guide surface 5f, second inner shoulder 5g, second outer shoulder 5h, second mounting hole 5i, strong magnetic steel A, reserved space B. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0029] like Figures 1 to 6 As shown, the wind turbine magnetic steel assembly tool of the utility model includes a first pressing tool 4 for pressing odd-numbered strong magnetic steels A into the corresponding reserved spaces B, and a second pressing tool 5 for pressing even-numbered strong magnetic steels A into the corresponding reserved spaces B;

[0030] The first press-fitting tool 4 includes a first positioning block 4b, a first guide block 4c, and a second guide block 4d. The first press-fitting hole 4a is set on the first positioning block 4b, one end of the first guide block 4c is fixed to the first positioning block 4b, and one end of the second guide block 4d is fixed to the first positioning block 4b. The distance between the first guide block 4c and the second guide block 4d is equal to the length of the first press-fitting hole 4a, and the height of the first guide block 4c is greater than the height of the second guide block 4d. When in use, the first guide block 4c and the second guide block 4d are inserted into the spacing space 3, and the first press-fitting hole 4a corresponds to the spacing space 3.

[0031] A first mounting hole 4i is provided on the first positioning block 4b. The first mounting hole 4i is waist-shaped and is a stepped hole. A first threaded hole 2a is provided on the axial end face of the annular component 1 or the vibrator 2. When the first press-in tool 4 is located at the position for pressing the strong magnetic steel A, a screw is used to pass through the first mounting hole 4i and threadedly connect with the first threaded hole 2a to fix the first press-in tool 4 to the annular component 1 or the vibrator 2.

[0032] The first guide block 4c has a first guide surface 4e for guiding one end of any one piece of strong magnetic steel A, and the first guide surface 4e is located on the same plane as the first hole wall surface 4a1 in the first press-fit hole 4a. The second guide block 4d has a second guide surface 4f for guiding the other end of any one piece of strong magnetic steel A, and the second guide surface 4f is located on the same plane as the second hole wall surface 4a2 in the first press-fit hole 4a. When the strong magnetic steel A enters the first press-fitting hole 4a, pressure is applied to the strong magnetic steel A to make the strong magnetic steel A move along the axial direction of the first press-fitting hole 4a. When the strong magnetic steel A is pushed out of the first press-fitting hole 4a, the two ends of the strong magnetic steel A are restricted by the first guide surface 4e and the second guide surface 4f, so that the strong magnetic steel A continues to move in a straight line under the action of pressure without causing the strong magnetic steel A to tilt. Therefore, through the above structure, after the strong magnetic steel A is matched with the vibrator 2, the two ends of the strong magnetic steel A are located at the same height position on the vibrator 2. In this way, all the strong magnetic steels A in each layer of magnetic steel can be caused to be located on the same circumference.

[0033] The width of the first positioning block 4b is greater than that of the first guide block 4c and the second guide block 4d. A first inner shoulder 4g and a first outer shoulder 4h are formed between the first positioning block 4b and the first guide block 4c and the second guide block 4d, respectively. The first inner shoulder 4g matches with the axial end face of the vibrator 2, and the first outer shoulder 4h matches with the axial end face of the annular component 1. This structure enables the first press-fitting tool 4 to obtain support from the annular component 1 and the vibrator 2, and enables the first guide block 4c and the second guide block 4d to be inserted into the spacing space 3, so that the strong magnetic steel A passes through the first press-fitting hole 4a into the spacing space 3 and matches with the vibrator 2.

[0034] The second press-in tooling 5 is made of non-magnetic material, and includes a second positioning block 5b, a third guide block 5c, and a fourth guide block 5d. The second positioning block 5b is provided with a second press-fitting hole 5a, one end of the third guide block 5c is fixed to the second positioning block 5b, one end of the fourth guide block 5d is fixed to the second positioning block 5b, the distance between the third guide block 5c and the fourth guide block 5d is equal to the length of the second press-fitting hole 5a, and the height of the third guide block 5c is equal to that of the fourth guide block 5d.

[0035] The third guide block 5c has a third guide surface 5e for guiding one end of any one piece of ferromagnetic steel A, and the third guide surface 5e is located on the same plane as the first side wall surface 5a1 in the second press-fitting hole 5a. The fourth guide block 5d has a fourth guide surface 5f for guiding the other end of any one piece of ferromagnetic steel A, and the fourth guide surface 5f is located on the same plane as the second side wall surface 5a2 in the second press-fitting hole 5a.

[0036] For example, when assembling the second strong magnetic steel A, the other end of the third guide block 5c is supported by the first strong magnetic steel A, and the other end of the fourth guide block 5d is supported by the third strong magnetic steel A, so that the second press-fitting hole 5a corresponds to the reserved space B, and pressure is applied to the second strong magnetic steel A and the second press-fitting hole 5a, and the second strong magnetic steel A moves axially along the second press-fitting hole 5a. After the second strong magnetic steel A is pushed out of the second press-fitting hole 5a, the two ends of the second strong magnetic steel A are guided by the third guide surface 5e and the fourth guide surface 5f, and finally the second strong magnetic steel A enters the reserved space B between the first strong magnetic steel A and the third strong magnetic steel A.

[0037] The width of the second positioning block 5b is greater than the width of the third guide block 5c and the fourth guide block 5d, and a second inner shoulder 5g and a second outer shoulder 5h are formed between the widths of the second positioning block 5b and the third guide block 5c and the fourth guide block 5d, respectively. The second inner shoulder 5g matches the axial end face of the vibrator 2, and the second outer shoulder 5h matches the axial end face of the annular component 1. This structure not only enables the second press-fitting tool 5 to obtain support from the annular component 1 and the vibrator 2, but also enables the third guide block 5c and the fourth guide block 5d to be inserted into the spacing space 3, so that the strong magnetic steel A passes through the second press-fitting hole 5a into the spacing space 3 and matches with the vibrator 2.

[0038] A second mounting hole 5i is provided on the first positioning block 5b, and the second mounting hole 5i is waist-shaped and is a stepped hole. Since a first threaded hole 2a is provided on the axial end surface of the annular component 1 or the vibrator 2, when the second press-in tool 5 is located at the position for press-fitting the strong magnetic steel A, a screw is passed through the second mounting hole 5i and is threadedly connected with the first threaded hole 2a to fix the second press-in tool 5 to the annular component 1 or the vibrator 2. In this way, the second press-in tool 5 can be prevented from being displaced during the press-fitting process to ensure that the second press-fitting hole 5a remains corresponding to the position of the reserved space.

[0039] The method for using the wind turbine magnetic steel assembly tool in this embodiment includes the following steps:

[0040] S1, the annular component 1 is surrounded by the vibrator 2, the annular component 1 is made of non-magnetic material, a spacing space 3 is formed between the annular component 1 and the vibrator 2, and a first threaded hole 2a is provided on the axial end face of the annular component 1 or the vibrator 2. In this embodiment, the first threaded hole 2a is preferably provided on the axial end face of the vibrator 2, the vibrator 2 is annular, and a second through hole 2b is also provided on the circumferential surface of the vibrator 2.

[0041] S2, the first press-in tool 4 is matched with the spacing space 3, and the first press-in tool 4 is supported by the annular component 1 and the axial end surface of the vibrator 2, and a first press-in hole 4a is provided on the first press-in tool 4. The material of the first press-in tool 4 is non-magnetic, and the length of the first press-in hole 4a is slightly greater than the length of the strong magnetic steel A. For example, the difference between the length of the first press-in hole 4a and the strong magnetic steel A is within 0.1mm. When the strong magnetic steel A enters the first press-in hole 4a, the strong magnetic steel A can slide along the first press-in hole 4a.

[0042] S3, assembling a first layer of magnetic steel on the outer circumferential surface of the vibrator 2, wherein the first layer of magnetic steel is formed by one to n pieces of strong magnetic steel A matched end to end along the circumferential direction of the vibrator 2, wherein n is a natural number greater than or equal to 2, and the assembly process is: making the first piece of strong magnetic steel A match with the first press-fitting hole 4a, applying pressure to the first piece of strong magnetic steel A, so that the first piece of strong magnetic steel A passes through the first press-fitting hole 4a and moves to a designated position matched with the vibrator 2, and fixing the first piece of strong magnetic steel A to the vibrator 2 with screws, each piece of strong magnetic steel A is provided with a first through hole (not shown in the figure), the first through hole is a threaded hole, and the screw is passed from the inner circumferential surface of the vibrator 2 through the second through hole 2b and is threadedly connected with the first through hole, so that the strong magnetic steel A and the vibrator 2 are fixed as a whole, and the remaining strong magnetic steels A in the first layer of magnetic steel are installed by repeating steps S2 and S3;

[0043] In step S3, after the first piece of strong magnetic steel A is assembled, since the strong magnetic steel A has strong repulsiveness, the preferred method is to assemble the remaining strong magnetic steels A in the following order according to the sequence of the strong magnetic steels A:

[0044] A reserved space B for the second strong magnetic steel A is reserved between the assembly positions of the first strong magnetic steel A and the third strong magnetic steel A, that is, the third strong magnetic steel A is assembled first, and the odd-numbered strong magnetic steels A are assembled repeatedly in this way. After the assembly of each odd-numbered strong magnetic steel A is completed, a reserved space is formed between any two odd-numbered strong magnetic steels A, and the even-numbered strong magnetic steels A are pressed into each reserved space B using the second pressing tool 5.

[0045] For example, there are 11 strong magnetic steels A in the first layer of magnetic steels. According to the order of the strong magnetic steels A, the strong magnetic steels A ordered as 1, 3, 5, 7, 9, and 11 are assembled first. Since there is a reserved space between any two strong magnetic steels A with odd numbers, the second pressing tool 5 is used to press the strong magnetic steels A with even numbers into each reserved space B. When assembling the strong magnetic steels A with even numbers, they can be assembled according to the order of the strong magnetic steels A, or they can be assembled not according to the order of the strong magnetic steels A, that is, they only need to be pressed into each reserved space B.

[0046] S4, if it is necessary to assemble multiple layers of magnetic steel on the outer peripheral surface of the vibrator 2, the installation method of the remaining layers of magnetic steel repeats steps S2 and S3. In the present invention, if it is necessary to assemble multiple layers of magnetic steel on the outer peripheral surface of the vibrator 2, the odd-numbered strong magnetic steel A in the first layer of magnetic steel is press-fitted using the first press-fit tool 4, the even-numbered strong magnetic steel A in the first layer of magnetic steel is press-fitted using the second press-fit tool 5, and the remaining layers of magnetic steel are all press-fitted using the second press-fit tool 5.

[0047] The present invention is not limited to the above-mentioned methods, for example:

[0048] In step S3, after the first strong magnetic steel A is assembled, the remaining strong magnetic steels A are assembled in the following order according to the order of the strong magnetic steels A: a reserved space B for the second strong magnetic steel A is reserved between the assembly positions of the first strong magnetic steel A and the third strong magnetic steel A, the third strong magnetic steel A is assembled first, and then the second press-in tool 5 is used to press the sorted second strong magnetic steel A into the reserved space B, and the first press-in tool 4 is repeatedly used to first install the odd-numbered strong magnetic steels A, and then the second press-in tool 5 is used to install an even-numbered strong magnetic steel A.

[0049] Finally, it should be noted that the above-described implementation mode is only a preferred embodiment of the utility model to illustrate the technical solution of the utility model, and does not limit it, let alone limit the protection scope of the utility model; although the utility model is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the protection scope of the claims.

Claims

1. Wind turbine magnetic steel assembly tool, characterized in that: It comprises a first pressing tool (4) for pressing odd-numbered strong magnetic steels into corresponding reserved spaces, and a second pressing tool (5) for pressing even-numbered strong magnetic steels into corresponding reserved spaces; The first press-fitting tool (4) comprises a first positioning block (4b), a first guide block (4c), and a second guide block (4d); the first positioning block (4b) is provided with a first press-fitting hole (4a); one end of the first guide block (4c) is fixed to the first positioning block (4b); one end of the second guide block (4d) is fixed to the first positioning block (4b); the spacing between the first guide block (4c) and the second guide block (4d) is equal to the length of the first press-fitting hole (4a); and the height of the first guide block (4c) is greater than the height of the second guide block (4d); The second press-fitting tool (5) comprises a second positioning block (5b), a third guide block (5c), and a fourth guide block (5d); the second positioning block (5b) is provided with a second press-fitting hole (5a); one end of the third guide block (5c) is fixed to the second positioning block (5b); one end of the fourth guide block (5d) is fixed to the second positioning block (5b); the spacing between the third guide block (5c) and the fourth guide block (5d) is equal to the length of the second press-fitting hole (5a); and the heights of the third guide block (5c) and the fourth guide block (5d) are equal.

2. The wind turbine generator magnetic steel assembly tool according to claim 1, characterized in that: The first guide block (4c) has a first guide surface (4e) for guiding one end of any one piece of strong magnetic steel (A), and the first guide surface (4e) and the first hole wall surface (4a1) in the first press-fit hole (4a) are located on the same plane. The second guide block (4d) has a second guide surface (4f) for guiding the other end of any one piece of strong magnetic steel (A), and the second guide surface (4f) and the second hole wall surface (4a2) in the first press-fit hole (4a) are located on the same plane.

3. The wind turbine generator magnetic steel assembly tool according to claim 1, characterized in that: The width of the first positioning block (4b) is greater than the widths of the first guide block (4c) and the second guide block (4d); a first inner shoulder (4g) and a first outer shoulder (4h) are respectively formed between the first positioning block (4b) and the first guide block (4c) and the second guide block (4d); the first inner shoulder (4g) cooperates with the axial end face of the vibrator (2), and the first outer shoulder (4h) cooperates with the axial end face of the annular component (1).

4. The wind turbine generator magnetic steel assembly tool according to claim 1, characterized in that: A first mounting hole (4i) is provided on the first positioning block (4b), and a first threaded hole (2a) is provided on the axial end surface of the annular component (1) or the vibrator (2). When the first press-in tool (4) is located at a position for press-fitting the strong magnetic steel (A), a screw is passed through the first mounting hole (4i) and threadedly connected to the first threaded hole (2a), thereby fixing the first press-in tool (4) to the annular component (1) or the vibrator (2).

5. The wind turbine generator magnetic steel assembly tool according to claim 1, characterized in that: The third guide block (5c) has a third guide surface (5e) for guiding one end of any one piece of strong magnetic steel (A), and the third guide surface (5e) and the first side wall surface (5a1) in the second press-fit hole (5a) are located on the same plane. The fourth guide block (5d) has a fourth guide surface (5f) for guiding the other end of any one piece of strong magnetic steel (A), and the fourth guide surface (5f) and the second side wall surface (5a2) in the second press-fit hole (5a) are located on the same plane.

6. The wind turbine generator magnetic steel assembly tool according to claim 1, characterized in that: The width of the second positioning block (5b) is greater than the widths of the third guide block (5c) and the fourth guide block (5d); a second inner shoulder (5g) and a second outer shoulder (5h) are respectively formed between the second positioning block (5b) and the widths of the third guide block (5c) and the fourth guide block (5d); the second inner shoulder (5g) cooperates with the axial end face of the vibrator (2), and the second outer shoulder (5h) cooperates with the axial end face of the annular component (1).

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