Generator stator bar end combining block shaping tool

Abstract

The utility model relates to a shaping tool for an end combining block of a generator stator bar. The shaping tool is characterized in that a shaping plate is an L-shaped steel plate, the shaping plate is telescopically and symmetrically mounted on a mounting groove, a kidney-shaped hole is formed in the side edge of the mounting groove, an adjusting bolt penetrates through the kidney-shaped hole to be mounted on the side edge of the shaping plate, and the shaping plate is fixed in the mounting groove; the main force rod is installed at the bottom of the installation groove and serves as a handheld component, and the auxiliary rod is installed on the main force rod and assists the main force rod in force generation. According to the scheme, through comprehensive design of the shaping plate, the mounting groove and the main force rod, rapid and accurate shaping of the head combining block can be achieved, through cooperation of the shaping plate, the mounting groove and the angle adjusting base, the tool has multi-specification and multi-angle applicability, the construction efficiency and quality are remarkably improved, shaping is conducted before the wire rod head combining block is welded, and the welding quality is improved. And tooth staggering between the stator bar head combining blocks is eliminated.

Description

Technical Field

[0001] This application relates to the field of parallel bar shaping technology, and more particularly to a generator stator bar parallel bar shaping tool. Background Technology

[0002] With the rapid development of the pumped storage industry, new requirements have been placed on the installation efficiency and construction quality of pumped storage units. Currently, in pumped storage power stations under construction, the generator stators are mostly two-part structures. After being transported to the site, they undergo assembly, welding, lamination, and stator installation. The installation of the stator bars is a crucial step during stator installation. Each bar needs to be connected after installation using a jointing block. However, the jointing block is machined as a whole with the bar in the factory. Due to various factors such as the machining precision of individual components, transportation, and construction, the jointing block often has some misaligned teeth before silver soldering. Forcibly soldering jointing blocks with misaligned teeth will inevitably create internal stress, posing a potential threat to the stable operation of the subsequent unit and compromising the appearance quality of the construction.

[0003] To adjust the misalignment between the two parallel bars and ensure that the parallel bars are aligned in a free state, a tool for efficiently shaping the parallel bars during on-site assembly of the generator stator needs to be designed. This would reduce the difficulty of shaping the parallel bars, decrease the internal stress after silver soldering, and ensure the appearance quality of the stator after it comes off the production line and the subsequent stable operation of the unit. Utility Model Content

[0004] To solve or partially solve the problems existing in the related technologies, this application provides a generator stator bar parallel block shaping tool, which aims to solve the problem of efficient and rapid shaping of misaligned parallel blocks.

[0005] This application provides a generator stator bar parallel head block shaping tool, including:

[0006] Shaping plate, mounting slot, adjusting bolts, auxiliary rod and main rod;

[0007] The shaping plate is an L-shaped steel plate. The shaping plate can be telescopically and symmetrically installed on the mounting groove. The mounting groove has waist holes on the side. Adjusting bolts are installed on the side of the shaping plate through the waist holes to fix the shaping plate in the mounting groove.

[0008] The main rod is installed at the bottom of the mounting slot as a handheld component, while the auxiliary rod is installed on the main rod to assist in applying force.

[0009] Optionally, in some embodiments, the generator stator bar parallel head block shaping tool further includes:

[0010] Angle adjustment seat;

[0011] Angle adjustment seat is installed at the bottom of the mounting slot, and main rod is installed on the angle adjustment seat. The angle is adjusted by the angle adjustment seat to adapt to the misalignment of the parallel blocks in different positions.

[0012] Optionally, in some implementations, the main strut consists of two or more steel pipes connected by threads.

[0013] Optionally, in some implementations, the auxiliary rod is bolted to the main rod.

[0014] Optionally, in some embodiments, the edges on the inner side of the top of the shaping plate are rounded to facilitate use and the assembly and disassembly of the joint block.

[0015] The technical solution provided in this application may include the following beneficial effects:

[0016] Through the integrated design of the shaping plate, mounting groove, and main support rod, the parallel head block can be quickly and accurately shaped. The combination of the shaping plate, mounting groove, and angle adjustment seat makes the tool applicable to multiple specifications and angles, significantly improving construction efficiency and quality. The shaping is performed before welding the parallel head block of the stator bar to eliminate misalignment between the parallel head blocks, improve the appearance quality of the stator after welding, reduce residual internal stress in the parallel head block caused by welding heat input, and ensure stable operation of the unit after installation.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0019] Figure 1 This is a schematic diagram of the structure of the generator stator bar parallel block shaping tool shown in the embodiments of this application;

[0020] Figure 2 This is another schematic diagram of the generator stator bar parallel block shaping tool shown in the embodiments of this application;

[0021] Attached reference numerals: 1-Shaping plate, 2-Mounting groove, 3-Adjusting bolt, 4-Auxiliary rod, 5-Main rod, 6-Angle adjustment seat. Detailed Implementation

[0022] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, 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.

[0023] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] In pumped-storage power stations currently under construction, generator stators are mostly two-part structures. They are transported to the site for assembly, welding, lamination, and stator installation. The installation of the stator bars is a crucial step during stator installation. Each bar needs to be connected after installation using a jointing block. However, the jointing block is machined as a single unit with the bar in the factory. Due to factors such as the machining precision of individual components, transportation, and construction, the jointing block often has some misaligned teeth before silver soldering. Forcibly soldering these misaligned jointing blocks together will inevitably create internal stress, posing a potential threat to the stable operation of the subsequent unit and compromising the appearance quality of the construction.

[0027] To address the aforementioned issues, this application provides a generator stator bar parallel block shaping tool. Through the integrated design of a shaping plate, mounting groove, and main support rod, the tool achieves rapid and precise shaping of the parallel blocks. The combination of the shaping plate, mounting groove, and angle adjustment seat enables the tool to be applicable to multiple specifications and angles, significantly improving construction efficiency and quality. Shaping the parallel blocks before welding eliminates misalignment between stator bar parallel blocks, improves the appearance quality of the stator after welding, reduces residual internal stress in the parallel blocks due to welding heat input, and ensures stable operation of the installed unit.

[0028] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0029] Figure 1 This is a schematic diagram of the structure of the generator stator bar parallel block shaping tool shown in the embodiments of this application.

[0030] See Figure 1 A generator stator bar parallel head shaping tool, comprising:

[0031] 1. Shaping plate; 2. Mounting slot; 3. Adjusting bolt; 4. Auxiliary rod; 5. Main rod; and 6. Angle adjustment seat.

[0032] The shaping plate 1 is an L-shaped steel plate. The shaping plate 1 is telescopically and symmetrically installed on the mounting groove 2. The mounting groove 2 has waist holes on its side. The adjusting bolts 3 pass through the waist holes and are installed on the side of the shaping plate 1. The position of the shaping plate 1 in the mounting groove 2 is adjusted and fixed by adjusting the adjusting bolts 3, so that the shaping plate 1 can be adapted to the joint blocks of different thicknesses.

[0033] Angle adjustment seat 6 is welded to the bottom of mounting slot 2. The main rod 5 is threaded onto angle adjustment seat 6. The distance between the main rod 5 and mounting slot 2 is adjusted by angle adjustment seat 6 to accommodate the misalignment of the parallel blocks at different positions. The main rod 5 consists of two or more steel pipes connected by threads, serving as a handheld component. The auxiliary rod 4 is bolted onto the main rod 5 to assist the main rod 5 in applying force.

[0034] Usage of this application: Before construction, check that the tool connections are reliable and undamaged. The dimension between the two shaping plates 1 is determined according to the thickness of the parallel block to be shaped. The width between the two shaping plates 1 is slightly larger than the thickness of the parallel block. Tighten the adjusting bolts 3 to fix it. Then, according to the operator's habits, assemble the main rod 5 and install it on the angle adjustment seat 6. Then, install the auxiliary rod 4 on the main rod 5 to complete the assembly of the generator stator bar parallel block shaping tool. During shaping, slowly insert the generator stator bar parallel block shaping tool into the parallel block to be shaped. Hold the main rod and apply force in the opposite direction of the misalignment, observing the change in misalignment while applying force, until there is no obvious misalignment between the parallel blocks, then remove the tool. When shaping the lower bar parallel blocks, be careful to prevent the tool from falling and injuring people. For cases with many misaligned parallel blocks, three to four tools can be used, and multiple people can work simultaneously to improve work efficiency.

[0035] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A generator stator bar parallel head block shaping tool, characterized in that, include: Shaping plate (1), mounting slot (2), adjusting bolt (3), auxiliary rod (4) and main rod (5); The shaping plate (1) is an L-shaped steel plate. The shaping plate (1) is symmetrically and telescopically installed on the mounting groove (2). The mounting groove (2) has a waist hole on its side. The adjusting bolt (3) passes through the waist hole and is installed on the side of the shaping plate (1) to fix the shaping plate (1) in the mounting groove (2). The main rod (5) is installed at the bottom of the mounting slot (2) as a handheld component, and the auxiliary rod (4) is installed on the main rod (5) to assist the main rod (5) in exerting force.

2. The generator stator bar parallel head shaping tool according to claim 1, characterized in that, Also includes: Angle adjustment seat (6); The angle adjustment seat (6) is installed at the bottom of the mounting slot (2), and the main rod (5) is installed on the angle adjustment seat (6). The angle is adjusted by the angle adjustment seat (6) to adapt to the shaping of misaligned teeth in different positions.

3. The generator stator bar parallel head shaping tool according to claim 1, characterized in that: The main rod (5) consists of two or more steel pipes connected by threads.

4. The generator stator bar parallel head shaping tool according to claim 1, characterized in that: The auxiliary rod (4) is bolted to the main rod (5).

5. The generator stator bar parallel head shaping tool according to claim 1, characterized in that: The inner edge of the top of the shaping plate (1) is rounded to facilitate the use and assembly and disassembly of the joint block.

Images