Anti-deformation tool suitable for semi-direct-drive iron core

Abstract

The anti-deformation tool suitable for the semi-direct-drive iron core comprises an upper pressing plate, a lower supporting plate and a threaded rod, the upper pressing plate is installed at the upper end of the iron core and used for preventing the iron core from generating axial and radial endplay, and the lower supporting plate is supported at the bottom of the iron core and used for preventing the iron core from generating radial endplay in the transportation process. The upper pressing plate and the lower supporting plate are each of a horizontally-arranged annular structure, the screws are evenly distributed in the peripheral direction of the periphery of the iron core and are vertically arranged, and the upper ends and the lower ends of the screws are in threaded connection with the upper pressing plate and the lower supporting plate respectively and used for fixing the iron core between the upper pressing plate and the lower supporting plate. The problems that deformation of the iron core in the hoisting and transporting process is difficult to correct after deformation, and the recovery rate of an anti-deformation tool is low are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of stator impregnation technology for wind turbines, and particularly relates to a deformation prevention tooling applicable to a semi-direct drive iron core. Background Art

[0002] Some domestic semi-direct drive iron cores are composed of punching sheets, press rings, ventilation channel plates and ventilation channel sheets. Due to the internal rotor structure design of the semi-direct drive generator, a hollow structure design is adopted in the middle of the iron core.

[0003] Currently, many manufacturers use wooden bases to transport iron cores in order to reduce costs. As Figure 1 shown, the common iron core transportation adopts a pallet-type transportation structure. The iron core is placed on a wooden pallet, and 4 wooden limiting toolings (composed of a wooden base and a limiting block on its top surface) are placed around it. During use, the limiting tooling plays a role in limiting the bottom of the iron core through the limiting block, but the overall limiting function is limited, and it is easy to cause the iron core to become elliptical during transportation, resulting in out-of-tolerance of the overall dimensions. A large amount of rework is generated, seriously affecting the progress of the project. The key parameters such as the inner and outer circles and slot shapes of the iron core have an important impact on the subsequent processes, such as affecting wire insertion and machine base fitting, etc. In addition, the existing wooden limiting tooling has poor recyclability, and the wooden base is easily damaged during transportation, increasing the tooling investment cost. Summary of the Invention

[0004] The present invention discloses a deformation prevention tooling applicable to a semi-direct drive iron core, which solves the problems of deformation of the iron core during hoisting and transportation, difficulty in correcting after deformation, and low recovery rate of the deformation prevention tooling.

[0005] The specific solution is as follows:

[0006] A deformation prevention tooling applicable to a semi-direct drive iron core, characterized in that it includes an upper pressing plate, a lower supporting plate and a screw. The upper pressing plate is installed at the upper end of the iron core to prevent axial and radial movement of the iron core. The lower supporting plate supports the bottom of the iron core to prevent radial movement of the iron core during transportation. Both the upper pressing plate and the lower supporting plate are horizontally arranged circular ring structures. The screws are evenly distributed along the circumferential direction of the periphery of the iron core and are vertically arranged, and their upper and lower ends are respectively threadedly connected to the upper pressing plate and the lower supporting plate to fix the iron core between the upper pressing plate and the lower supporting plate.

[0007] Further, limiting stop ports are evenly distributed along the circumferential direction on the inner side of the upper pressing plate.

[0008] Further, an annular supporting stop port is provided at the top of the inner side of the lower supporting plate.

[0009] Further, the lower supporting plate is supported by the transportation equipment, and the support process avoids the screws.

[0010] The beneficial effects of the present invention are as follows:

[0011] 1. The upper and lower pressure plates and the tensioning screws are used to fix and limit the overall iron core, which can effectively prevent it from deforming.

[0012] 2. Compared with the wooden anti-deformation tooling, its recyclability is greatly improved and it can be reused repeatedly.

[0013] 3. In the case of iron core deformation, the upper and lower pressure plates can be tightened through the screws to achieve iron core correction. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the existing wooden limiting tooling.

[0015] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0016] List of Reference Numerals:

[0017] 1 - upper pressure plate, 2 - lower support plate, 3 - screw, 4 - limiting stop, 5 - annular support stop. Detailed Embodiment

[0018] The following further clarifies the present invention in conjunction with the drawings and the detailed embodiment. It should be understood that the following detailed embodiment is only used to illustrate the present invention and not to limit the scope of the present invention.

[0019] As Figure 2 shown, the present application provides an anti-deformation tooling applicable to a semi-direct drive iron core, including an upper pressure plate 1, a lower support plate 2 and a screw 3. The upper pressure plate 1 is installed at the upper end of the iron core to prevent axial and radial movement of the iron core. The lower support plate 2 supports at the bottom of the iron core to prevent radial movement of the iron core during transportation. Both the upper pressure plate 1 and the lower support plate 2 are horizontally arranged circular ring structures. The screws 3 are evenly distributed along the circumferential direction of the periphery of the iron core and are vertically arranged. The upper and lower ends thereof are respectively threadedly connected to the upper pressure plate 1 and the lower support plate 2 to fix the iron core between the upper pressure plate 1 and the lower support plate 2.

[0020] In this embodiment, limiting stops 4 are evenly distributed along the circumferential direction on the inner side of the upper pressure plate 1.

[0021] In this embodiment, an annular support stop 5 is provided at the top of the inner side of the lower support plate 2.

[0022] In this embodiment, the lower support plate 2 is supported by the transportation equipment and avoids the screws 3.

[0023] The technical means disclosed in the solution of the present invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A semi-direct drive iron core anti-deformation tooling, characterized in that It includes an upper pressure plate (1), a lower support plate (2) and a screw rod (3). The upper pressure plate (1) is installed at the upper end of the iron core to prevent axial and radial displacement of the iron core. The lower support plate (2) supports at the bottom of the iron core to prevent radial displacement of the iron core during transportation. Both the upper pressure plate (1) and the lower support plate (2) are horizontally arranged circular ring structures. The screw rod (3) is evenly distributed along the circumferential direction of the periphery of the iron core and is vertically arranged. Its upper and lower ends are respectively threadedly connected to the upper pressure plate (1) and the lower support plate (2) to fix the iron core between the upper pressure plate (1) and the lower support plate (2).

2. The semi-direct drive iron core anti-deformation tooling according to claim 1, characterized in that, Limited position stop ports (4) are evenly distributed along the circumferential direction on the inner side of the upper pressure plate (1).

3. A semi-direct drive iron core anti-deformation tooling according to claim 1, characterized in that, An annular support stop port (5) is provided at the top of the inner side of the lower support plate (2).

4. A semi-direct drive iron core anti-deformation tooling according to claim 1, characterized in that, The lower support plate (2) is supported by the transportation equipment and avoids the screw rod (3).

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