Power generator rotor magnet yoke punching sheet stacking and shaping T tail tool

Abstract

The utility model relates to a T-tail tool for stacking and shaping magnet yoke punching sheets of a generator rotor. The power generator rotor magnet yoke punching sheet stacking and shaping T tail tool comprises a bottom block, a main body block, a screw rod and a pin roller. The bottom block is of a cuboid structure with the length matched with that of a T-shaped groove of a magnet yoke punching sheet, one end of the screw is axially, fixedly and rotatably connected with the bottom block, the main body block is in a trapezoidal long strip shape with the wide inside and the narrow outside, the screw penetrates through the main body block and is in threaded connection with the main body block, and the length of the screw is larger than the depth of the T-shaped groove of the magnet yoke punching sheet. The two sides of the main body block are provided with rollers in a rolling manner, wherein the rollers work in cooperation with the main body block. The long edge size of the trapezoidal surface of the main body block is larger than the notch width of the T-shaped groove of the magnet yoke punching sheet. The bottom block, the main body block and the roller are driven by the screw to synchronously apply pressure to the T-tail groove of the magnetic yoke punching sheet from all directions for shaping and neatening, the stress direction is comprehensive, the stress is uniform, the punching sheet stacking misalignment is reduced, the punching sheet is prevented from being damaged, and the magnetic yoke stacking construction quality is improved.

Description

Technical Field

[0001] This application relates to the technical field of water conservancy and hydropower equipment, and particularly relates to a T-tail tool for stacking, shaping and finishing the magnetic yoke punching sheets of a generator rotor. Background Art

[0002] The magnetic yoke of a hydrogenerator rotor is stacked on site by high-strength steel sheets that have been passivated. It is an important part of the generator rotor. The magnetic yoke laminations are stacked in sections, passing through the lamination pins to ensure that the laminations are tight. When stacking the laminations, the shearing directions of the punching sheets are the same, forming strip-shaped T-shaped grooves for fixing the magnetic poles. The magnetic yoke is mostly formed by stacking numerous punching sheets, and the neatness of the punching sheet stacking directly affects the stacking quality of the magnetic yoke. In the traditional shaping method, only a copper hammer is used to strike the punching sheets for shaping, which is likely to cause damage to the punching sheets. Moreover, when striking, the punching sheets are locally stressed and the stress is uneven, resulting in poor shaping results and misaligned teeth, which affects the stacking quality of the magnetic yoke. Summary of the Utility Model

[0003] To solve or partially solve the problems existing in the related technologies, this application provides a T-tail tool for stacking, shaping and finishing the magnetic yoke punching sheets of a generator rotor, which can avoid damage to the punching sheets and improve the stacking efficiency and quality of the magnetic yoke.

[0004] This application provides a T-tail tool for stacking, shaping and finishing the magnetic yoke punching sheets of a generator rotor, including a bottom block 1, a main body block 2, a screw rod 3, and a roller 4; the bottom block 1 is a cuboid structure with a length matching that of the T-shaped groove of the magnetic yoke punching sheet 6. One end of the screw rod 3 is axially fixedly and rotatably connected to the bottom block 1. The main body block 2 is in the shape of a trapezoidal long strip with a wider inner part and a narrower outer part. The screw rod 3 passes through the main body block 2 and is threadedly connected to the main body block 2. Moreover, the length of the screw rod 3 is greater than the depth of the T-shaped groove of the magnetic yoke punching sheet 6. The two sides of the main body block 2 are provided with rollers 4 that cooperate with the main body block 2, and the long side dimension of the trapezoidal surface of the main body block 2 is greater than the width of the T-shaped groove opening of the magnetic yoke punching sheet 6.

[0005] Optionally, in some solutions, a handle 5 is installed at the other end of the screw rod 3.

[0006] Optionally, in some solutions, there are three screw rods 3, and the three screw rods 3 are evenly and symmetrically arranged along the length direction of the bottom block 1.

[0007] The technical solution provided by this application may include the following beneficial effects:

[0008] During the construction process of this application, when turning the screw rod handle, it drives the bottom block, the main body block, and the roller to simultaneously apply pressure to the T-tail groove of the magnetic yoke punching sheet from all directions for shaping and alignment. The stress direction is comprehensive and the stress is uniform, reducing misaligned teeth in the punching sheet stacking and avoiding damage to the punching sheets, thus improving the construction quality of the magnetic yoke stacking;

[0009] The components of this application are made of common materials, which are convenient to obtain materials, simple in structure, convenient for casting, can shorten the casting cycle and reduce the casting cost; during the working process, the operation is simple, time-saving and labor-saving, and the disassembly and assembly are convenient, which improves the efficiency of yoke stacking and saves the construction cost.

[0010] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this application. Brief Description of the Drawings

[0011] By describing the exemplary embodiments of this application in more detail in conjunction with the drawings, the above and other objects, features and advantages of this application will become more obvious. Among them, in the exemplary embodiments of this application, the same reference numerals generally represent the same components.

[0012] Figure 1 It is a schematic structural diagram of a T-tail tool for stacking and shaping generator rotor yoke punching sheets shown in the embodiments of this application;

[0013] Figure 2 It is a schematic use structural diagram of a T-tail tool for stacking and shaping generator rotor yoke punching sheets shown in the embodiments of this application.

[0014] Reference Numerals:

[0015] 1 - bottom block, 2 - main body block, 3 - screw, 4 - roller, 5 - handle, 6 - yoke punching sheet. Detailed Embodiments

[0016] The embodiments of this application will be described in more detail below with reference to the drawings. Although the embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0017] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality" means two or more unless otherwise specifically defined.

[0018] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0019] Unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0020] In view of the above problems, an embodiment of the present application provides a T-tail tool for stacking and shaping the magnetic yoke punching of a generator rotor, which can avoid punching damage and improve the stacking efficiency and quality of the magnetic yoke.

[0021] The technical solutions of the embodiments of the present application will be described in detail below with reference to the drawings.

[0022] See Figure 1-2 , the T-tail tool for stacking and shaping the magnetic yoke punching of the generator rotor includes a bottom block 1, a main body block 2, a screw 3, and a roller 4; the bottom block 1 is a cuboid structure with a length matching the length of the T-shaped groove of the magnetic yoke punching 6, one end of the screw 3 is axially fixedly and rotatably connected to the bottom block 1, the main body block 2 is in the shape of a trapezoidal long strip with a wider inner part and a narrower outer part, the screw 3 passes through the main body block 2 and is threadedly connected to the main body block 2, and the length of the screw 3 is greater than the depth of the T-shaped groove of the magnetic yoke punching 6. Rollers 4 that cooperate with the main body block 2 are arranged on both sides of the main body block 2 in a rolling manner, and the long side dimension of the trapezoidal surface of the main body block 2 is greater than the width of the notch of the T-shaped groove of the magnetic yoke punching 6.

[0023] During operation, when stacking and shaping the magnetic yoke punching of a hydrogenerator, the bottom block 1 is in the shape of a long strip and is closely attached to the bottom surface of the T-tail groove of the magnetic yoke punching. The main body block 2 is located in the T-shaped groove of the magnetic yoke punching 6, and the rollers 4 are placed between the inclined surface of the main body block 2 and the inner side of the notch of the T-shaped groove of the magnetic yoke punching 6. Rotate the screw 3 to make the main body block 2 move along the screw towards the notch of the T-shaped groove, so as to press the rollers 4 on both sides of it. Drive the bottom block 1, the main body block 2, and the rollers 4 through the screw 3 to apply pressure to the T-tail groove of the magnetic yoke punching 6 from all directions for shaping and aligning until the magnetic yoke shaping requirements are met.

[0024] In some embodiments, a handle 5 is installed at the other end of the screw rod 3.

[0025] During operation, the screw rod 3 is rotated by turning the handle 5, which prevents operation and saves time and effort.

[0026] In some embodiments, three screw rods 3 are provided, and the three screw rods 3 are evenly and symmetrically arranged along the length direction of the bottom block 1.

[0027] During operation, the three screw rods 3 can make the T-tail grooves of the yoke punching sheet 6 more evenly stressed. When adjusting, first rotate the screw rod 3 in the middle position to make the bottom block 1, the main body block 2, and the roller 4 simultaneously apply pressure to the T-tail grooves of the yoke punching sheet 6 from all directions, and then rotate the screw rods 3 on both sides to apply the forces of the three screw rods 3 to the bottom block 1, the main body block 2, and the roller 4, ensuring that the bottom block 1, the main body block 2, and the roller 4 evenly and synchronously apply pressure to the T-tail grooves of the yoke punching sheet 6 from all directions.

[0028] Finally, it should also be noted that in this article, relationships such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms including, containing, or any other variants are intended to cover non-exclusive inclusion, so that a process, method, article, or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article, or device.

[0029] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0030] The embodiments of the present application have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technologies in the market, or to enable other ordinary skill in the art in the technical field to understand the embodiments disclosed herein.

Claims

1. A T-tail tool for stack shaping of generator rotor yoke punching sheets, characterized in that: The described T-tail tool for stacking and shaping the generator rotor yoke punching sheets includes a bottom block (1), a main body block (2), a screw (3), and a roller (4); the bottom block (1) is a cuboid structure with a length matching the length of the T-shaped groove of the yoke punching sheet (6). One end of the screw (3) is axially fixedly and rotatably connected to the bottom block (1). The main body block (2) is in the shape of a trapezoidal long strip with a wider inner part and a narrower outer part. The screw (3) passes through the main body block (2) and is threadedly connected to the main body block (2). Moreover, the length of the screw (3) is greater than the depth of the T-shaped groove of the yoke punching sheet (6). Rollers (4) that cooperate with the main body block (2) are arranged on both sides of the main body block (2) in a rolling manner, and the long side dimension of the trapezoidal surface of the main body block (2) is greater than the width of the notch of the T-shaped groove of the yoke punching sheet (6).

2. The T-tail tool for stacking and shaping the magnetic yoke punching sheets of the generator rotor according to claim 1, wherein: A handle (5) is installed at the other end of the screw (3).

3. The T-tail tool for stacking and shaping the generator rotor spider laminations according to claim 1 or 2, characterized in that: Three screws (3) are provided, and the three screws (3) are evenly and symmetrically arranged along the length direction of the bottom block (1).

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