Scribing device for angle ring of transformer
By using the design of sector brackets, guide rails and slider structures in the transformer angle ring scribing equipment, the problem of poor consistency of existing equipment is solved, and the high-precision marking of angle rings is achieved, and product quality and production efficiency are improved.
Patent Information
- Application Number
- CN202422010742.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-08-19
AI Technical Summary
The existing transformer angle ring scribing equipment has poor consistency, resulting in large differences in the size and shape of the angle ring, affecting the insulation performance and overall transformer performance.
A transformer angle ring marking device is designed, using a sector-shaped bracket, guide rail and slider structure, and the precise movement of the marking ruler is achieved through hinge connection and slider movement, ensuring the smoothness and accuracy of the marking.
It improves the processing accuracy of the angle ring, ensures that the product meets the design requirements, improves the quality stability of the overall product, and greatly shortens the processing time of a single angle ring, improving production efficiency and product quality.
Smart Images
Figure CN222932748U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of scribing of split corner rings of transformers, and particularly relates to a transformer corner ring scribing device. Background Art
[0002] In recent years, with the rapid development of the power industry, the design and technical requirements of transformers have been continuously improved. Especially in large-capacity and high-voltage transformers, in order to ensure their safe and stable operation, it is particularly important to improve the electric field distribution and strengthen the insulation strength of the coils. Inside the transformer, the non-uniformity of the electric field distribution may lead to partial discharge, which not only damages the insulating material but also may cause more serious faults. To prevent this creeping discharge phenomenon along the main insulation edge and between the coil pancakes, engineers have taken various measures, and one of them is to place formed corner rings between the coil ends and the pancakes and at the transformer body.
[0003] As an important insulating component, the design and manufacturing quality of the formed corner ring are directly related to the overall performance of the transformer. With the increase in the capacity of the transformer and the improvement of the voltage level, the market demand for corner rings is also increasing day by day. However, there are some problems with the current corner ring scribing equipment on the market. The consistency of these equipment during scribing is poor, resulting in large differences in the size, shape, etc. of the produced corner rings. This not only affects the insulation performance of the corner ring itself but also may have a negative impact on the performance of the entire transformer.
[0004] Specifically, due to the inconsistency of the scribing equipment, when the produced corner rings are assembled into the transformer, problems such as poor fit, too large or too small gaps may occur. These problems may not only lead to an exacerbation of the non-uniformity of the electric field distribution but also cause faults such as partial discharge. In addition, due to the unstable manufacturing quality of the corner rings, it may also increase the maintenance cost and failure rate of the transformer, thus bringing potential hazards to the safe and stable operation of the power system. And currently, the scribing of each piece in the scribing section takes about 3 minutes, seriously affecting the production efficiency of the corner rings. Summary of the Invention
[0005] The purpose of the utility model is to provide a transformer corner ring scribing device to solve the problem of poor scribing consistency of the existing equipment.
[0006] To achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A transformer corner ring scribing device includes a bracket, a guide rail, and a scribing ruler;
[0008] The guide rail is installed on the bracket, the bracket is a fan-shaped structure, the guide rail includes a fixed guide rail and a rotating guide rail, one ends of the fixed guide rail and the rotating guide rail are connected by a hinge, the rotating guide rail can rotate around the hinge axis, sliders are arranged on both the fixed guide rail and the rotating guide rail, and the scribing ruler is fixed on the slider.
[0009] Furthermore, the bracket is made of carbon steel square tubes by welding.
[0010] Furthermore, a platform is fixedly installed on the bracket by countersunk head screws, and the tabletop of the platform is made of bakelite board or nylon board.
[0011] Furthermore, the guide rail is an SGR type guide rail, the slider is matched with the guide rail, and the slider is an SGB type slider group.
[0012] Furthermore, scale rulers are arranged on both the fixed guide rail and the rotating guide rail.
[0013] Furthermore, two groups of sliders are arranged on both the fixed guide rail and the rotating guide rail, one group of the sliders bears the transformer angle ring, and the other group of the sliders bears the scribing ruler.
[0014] Furthermore, each group of the scribing rulers is respectively fixed on different sliders.
[0015] Furthermore, each group of the scribing rulers includes a fixed ruler body, a movable ruler body and an adjustable ruler body, the fixed ruler body is hinged to the movable ruler body, and the adjustable ruler body is installed at one end of the movable ruler body.
[0016] Furthermore, a fixing unit is arranged on the slider, and the transformer angle ring is fixed on the slider through the fixing unit.
[0017] Furthermore, an angle grating is arranged at the hinge joint of the scribing ruler.
[0018] Compared with the prior art, the utility model has the following beneficial effects:
[0019] The utility model provides a transformer angle ring scribing device. By installing a guide rail on a sector-shaped bracket, the fixed guide rail and the rotating guide rail are hinged. The rotating guide rail can rotate around the hinge axis. The transformer angle ring and the scribing ruler are fixed on the fixed guide rail and the rotating guide rail through sliders. The scribing ruler moves on the guide rail through the slider to scribe the transformer angle ring, ensuring the smoothness and accuracy of the scribing ruler during the moving process, effectively avoiding possible errors and inconsistencies. This high-precision scribing ability directly improves the processing precision of the transformer angle ring, enabling the final product to better meet the design requirements and enhancing the quality stability of the overall product. Moreover, it greatly shortens the processing time of a single angle ring and realizes fast and continuous scribing operations. The utility model optimizes the transformer angle ring scribing device, which is convenient to operate, has good scribing consistency, improves the scribing speed, thereby enhancing the production efficiency of the angle ring, increasing the output of the angle ring, and being more adaptable to the market demand of the angle ring. At the same time, it ensures the product quality, reduces the loss of products, and can produce products with excellent quality and good performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.
[0021] Figure 1 It is a schematic structural diagram of the transformer angle ring scribing device of the present utility model.
[0022] Figure 2 It is a schematic structural diagram of the guide rail of the present utility model.
[0023] Figure 3 It is a schematic structural diagram of the guide rail and scribing ruler of the present utility model.
[0024] Wherein: 1 - bracket, 2 - platform, 3 - guide rail, 4 - slider, 5 - scribing ruler, 3-1 - fixed guide rail, 3-2 - rotating guide rail. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Generally, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts fall within the scope of protection of the present utility model.
[0027] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0028] In the description of the embodiments of the present utility model, it should be noted that if terms such as "upper", "lower", "horizontal", "inner", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, it is only for the convenience of describing the present utility model 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 cannot be construed as a limitation of the present utility model. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.
[0029] In addition, if the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but it can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but it can be slightly inclined.
[0030] In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected to" are understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; 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. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0031] The following further describes the present utility model in detail with reference to the drawings:
[0032] See Figure 1 , the present utility model provides a transformer angle ring scribing device, including a bracket 1, a platform 2, a guide rail 3, a slider 4, and a scribing ruler 5.
[0033] The bracket 1 adopts a fan-shaped structure to adapt to the change of the arc central angle. The tabletop is suitable for personnel operation and is made of carbon steel square tubes welded together, which is strong and durable. The platform 2 is fixed on the bracket 1 by countersunk screws and is an operating platform for carrying the components of the line-drawing mechanism and workpieces. The overall flatness of the tabletop does not exceed 3 mm, and the tabletop is made of a whole piece of bakelite board or nylon board.
[0034] The guide rail 3 and the slider 4 are important components in the entire transformer angle ring line-drawing device. The SGR type guide rail and the supporting SGB type slider group are adopted. This type of guide rail slider group has a simple structure, reliable precision, smooth movement, does not require lubrication, and has good adaptability to the working conditions. The guide rail 3 includes a fixed guide rail 3-1 and a rotating guide rail 3-2, which are respectively provided with scale rulers for determining the radius of the angle ring. The two guide rails are hinged at one end, and the rotating guide rail 3-2 can rotate around the hinge axis to adapt to the change of the arc central angle. Two sets of sliders 4 are arranged on both the fixed guide rail 3-1 and the rotating guide rail 3-2. One set of sliders carries the transformer angle ring, and the other set of sliders carries the line-drawing mechanism.
[0035] The line-drawing mechanism includes a line-drawing ruler 5 and a fixing unit. The line-drawing ruler 5 is made of 6061 aluminum alloy, which is light in weight and good in strength. The line-drawing ruler 5 includes two sets, which are respectively fixed on two different sets of sliders 4 and are used for drawing the lines at both ends of the angle ring. Each set of line-drawing rulers 5 includes a fixed ruler body, a movable ruler body and an adjustable ruler body. The fixed ruler body is hinged to the movable ruler body and is used for drawing the line coinciding with the central angle line; the adjustable ruler body is installed at one end of the movable ruler body and is used for drawing the line parallel to the central angle line. The adjustable ruler body is provided with a parallel line-drawing ruler distance adjusting rod, and the adjustable range is 25 - 120 mm. Angle gratings are provided at the hinged part of the two steel ruler bodies of the line-drawing ruler 5, and the angle bent by the guide rail 3 of the line-drawing mechanism is calibrated with a digital display ruler. A fixing unit is arranged on the slider 4, and the fixing unit is a device for fixing the angle ring during line-drawing. The whole fixing unit moves together with the slider 4 carrying the transformer angle ring.
[0036] In a specific embodiment of the present utility model, the applicable range of this angle ring line-drawing device is angle rings with a flange edge less than or equal to 250 mm, an arc radius of 200 - 1500 mm, a central angle less than 60 degrees, and positive and negative angle rings with a thickness less than or equal to 4 mm. The tabletop height of the bracket 1 is 800 mm, which is suitable for personnel operation.
[0037] The working method of the transformer angle ring line-drawing device of the present utility model includes:
[0038] Place the transformer angle ring on the platform 2, and adjust the included angle between the fixed guide rail 3-1 and the rotating guide rail 3-2 according to the size of the transformer angle ring and the position where the line needs to be drawn to match the arc central angle of the angle ring. This adjustment is achieved through the two guide rails connected by a hinge, and the rotating guide rail 3-2 can rotate around the hinge axis to an appropriate angle.
[0039] Place the transformer angle ring on the slider 4 that bears it and firmly fix it using the fixing unit. The fixing unit moves integrally with the slider 4 that bears the angle ring to ensure the stable position of the angle ring during the scribing process. Another set of sliders 4 bears the scribing mechanism, including the scribing ruler 5 and the necessary fixing devices.
[0040] Adjust each part of the scribing ruler 5 according to the scribing requirements. The fixed ruler body and the movable ruler body are connected by a hinge and can be adjusted to a position coinciding with the central angular line; the adjustable ruler body is installed at one end of the movable ruler body, and by adjusting its position, it can draw a line parallel to the central angular line; use a digital display ruler and an angle grating to calibrate the angle of the scribing ruler to ensure the scribing accuracy.
[0041] After adjusting all components, start the scribing process. By moving the slider 4 that bears the scribing mechanism, guided by the fixed guide rail 3-1 and the rotating guide rail 3-2, the scribing ruler 5 scribes at both ends of the transformer angle ring. The fixed ruler body and the movable ruler body cooperate to draw a line coinciding with the central angular line, while the adjustable ruler body draws a line parallel to the central angular line, completing the precise scribing of the transformer angle ring.
[0042] After scribing, check the scribing quality to ensure that the lines are clear, accurate, and meet the design requirements. Finally, remove the transformer angle ring from the platform for subsequent processing or installation.
[0043] The entire working process of the present utility model focuses on precision and stability. Through reasonable design and adjustment, it realizes the rapid and accurate scribing of the transformer angle ring, improving production efficiency and product quality.
[0044] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, various changes and modifications can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A transformer corner ring marking device, characterized in that: Includes bracket, guide rail and marking ruler; The guide rail is installed on a bracket, and the bracket is a fan-shaped structure. The guide rail includes a fixed guide rail and a rotating guide rail. One end of the fixed guide rail and the rotating guide rail are connected by a hinge, and the rotating guide rail can rotate around the hinge axis. Slide blocks are provided on the fixed guide rail and the rotating guide rail, and the marking ruler is fixed on the slide block.
2. A transformer angle ring marking device according to claim 1, characterized in that: The bracket is made of a carbon steel square tube by welding.
3. A transformer corner ring marking device according to claim 1, characterized in that: A platform is fixedly mounted on the bracket by countersunk screws, and the table top of the platform is a bakelite board or a nylon board.
4. A transformer angle ring marking device according to claim 1, characterized in that: The guide rail is an SGR type guide rail, the slider is matched with the guide rail, and the slider is an SGB type slider group.
5. A transformer angle ring marking device according to claim 1, characterized in that: The fixed guide rail and the rotating guide rail are both provided with scales.
6. A transformer corner ring marking device according to claim 1, characterized in that: Two groups of slide blocks are arranged on the fixed guide rail and the rotating guide rail, one group of slide blocks carries the transformer angle ring, and the other group of slide blocks carries the marking ruler.
7. A transformer angle ring marking device according to claim 1, characterized in that: Each group of the marking rulers is fixed on different sliding blocks respectively.
8. A transformer corner ring marking device according to claim 1, characterized in that: Each set of the marking ruler comprises a fixed ruler body, a movable ruler body and an adjustable ruler body. The fixed ruler body is hinged to the movable ruler body, and the adjustable ruler body is installed at one end of the movable ruler body.
9. A transformer corner ring marking device according to claim 1, characterized in that: The slider is provided with a fixing unit, and the transformer angle ring is fixed on the slider through the fixing unit.
10. The transformer corner ring marking device according to claim 1, characterized in that: An angle grating is arranged at the hinge of the marking ruler.