A core pull
Patent Information
- Application Number
- CN202522062932.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-09-25
AI Technical Summary
铁心拉板采用整体钢板切割或焊接工艺制成：成本高、工艺复杂，整体钢板切割会造成大量材料浪费，焊接工艺不仅步骤繁琐、对加工精度要求高，还会增加工时成本，尺寸固定、适配性差，切割或焊接成型的拉板尺寸一旦确定便无法调整，无法适配不同规格、不同装配需求的变压器铁心，企业需为不同型号变压器储备多种尺寸的拉板，既增加库存成本，也降低生产装配的灵活性，同时不方便维修
（1）本实用新型通过拼接式拉板块替代传统整体钢板切割与焊接工艺，拼接式拉板无需整体材料切割，可根据需求组合拼接，减少材料浪费；无需复杂焊接操作，降低加工难度与工时成本；此外，灵活的结构设计减少了针对不同型号变压器的拉板库存储备，进一步降低企业库存成本，使产品在成本与外观上更具市场竞争力。
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Figure CN224907773U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transformer technology, specifically to a core tie plate. Background Technology
[0002] The core tie plate is a core auxiliary component used for the stacking and fixing of the core. It is mainly installed on the outer wall of the transformer core and plays a key role in connecting the core with the upper and lower clamps. At the same time, it works with structures such as pressure nails to build a support frame for the core assembly, providing a foundation for the fixing of the coil. It is an important component to ensure the stable assembly of the internal magnetic circuit and conductive components of the transformer and to ensure the normal realization of the electromagnetic energy conversion function. In the mainstream multi-stage round or rectangular core assembly of the transformer industry, the core tie plate fixes the upper and lower clamps through its own structure, forming a ring-shaped support for the core and maintaining the assembly posture of the core. At the same time, in conjunction with the pressure pin assembly on the upper clamp, the coil can be tightly pressed against the core surface, avoiding operating vibration or magnetic circuit disorder caused by gaps between the coil and the core. Ultimately, the transformer core, coil, and clamps form a relatively stable whole, ensuring the structural stability and functional reliability of the transformer during operation. Core tie plates are made by cutting or welding integral steel plates: the cost is high and the process is complex. Cutting integral steel plates will cause a lot of material waste, and the welding process is not only cumbersome and requires high processing precision, but also increases labor costs. The size is fixed and the adaptability is poor. Once the size of the tie plate is determined, it cannot be adjusted and cannot be adapted to transformer cores of different specifications and assembly requirements. Enterprises need to keep multiple sizes of tie plates for different transformer models, which increases inventory costs, reduces the flexibility of production and assembly, and is also inconvenient for maintenance. Utility Model Content
[0003] The purpose of this utility model is to provide a core drawing plate to solve the problems mentioned in the background art.
[0004] The purpose of this utility model can be achieved through the following technical solution: a core pull plate, including a core, a plurality of evenly distributed pull plates are fixedly connected to the outer wall of the core, an upper clamp is installed on the top of two adjacent pull plates, a lower clamp is installed on the bottom of two adjacent pull plates, and the pull plate is composed of a plurality of spliced pull plates. One side of each of the two adjacent pull plates is fixedly connected to a wedge block and is provided with a fixing component; the other pull plate has a wedge groove and two fixing holes on one side. The fixing assembly includes a bidirectional threaded rod and two fixing rods. The bidirectional threaded rod can drive the fixing rods to rise and fall by rotation, thereby fixing two adjacent pull plates.
[0005] As a preferred embodiment of this utility model: the outer wall of the wedge block is slidably connected to the inside of the wedge groove, and the outer wall of the fixing rod is slidably connected to the inside of the fixing hole.
[0006] As a preferred embodiment of this utility model: fixing bolts are installed on both the upper and lower sides of the fixing component, wherein the outer wall of a portion of the fixing bolts is slidably connected to the interior of the upper clamping member, and the outer wall of the other portion of the fixing bolts is slidably connected to the interior of the lower clamping member.
[0007] As a preferred embodiment of this utility model: the outer wall of the fixing bolt is threaded with a nut, wherein the top of a portion of the nut abuts against the inside of the upper clamping member, and the bottom of another portion of the nut abuts against the inside of the lower clamping member.
[0008] As a preferred embodiment of this utility model: the outer wall of the bidirectional threaded rod is threadedly connected to two movable plates, the bottom of the movable plates is rotatably connected to a rotating plate, the bottom of the rotating plate is rotatably connected to a lifting plate, and the bottom of the lifting plate is fixedly connected to the top of the fixed rod.
[0009] As a preferred embodiment of this utility model: the outer wall of the movable plate is slidably connected to the inside of the pull plate, and the outer wall of the lifting plate is slidably connected to the inside of the pull plate.
[0010] As a preferred embodiment of this utility model: sliders are fixedly connected to both sides of the lifting plate, and the outer wall of the slider is slidably connected to the inside of the lifting plate.
[0011] As a preferred embodiment of this utility model: one end of the bidirectional threaded rod is rotatably connected to a fixed shaft, and the end of the bidirectional threaded rod away from the fixed shaft is fixedly connected to an internal hexagonal turntable.
[0012] As a preferred embodiment of this utility model: one side of the fixed shaft is fixedly connected to the inside of the pull plate, and the outer wall of the hexagonal turntable is rotatably connected to the inside of the pull plate.
[0013] The beneficial effects of this utility model are: (1) This utility model replaces the traditional integral steel plate cutting and welding process with spliced pull plates. The spliced pull plates do not require integral material cutting and can be combined and spliced according to needs, reducing material waste; no complicated welding operation is required, reducing processing difficulty and labor cost; in addition, the flexible structural design reduces the inventory of pull plates for different transformer models, further reducing the enterprise's inventory cost, making the product more competitive in terms of cost and appearance.
[0014] (2) In this utility model, two pull plates are initially spliced together by wedge blocks and pull plates. Then, by rotating the internal hexagonal turntable, the bidirectional threaded rod can be rotated to make the two moving plates move towards each other. Then, by rotating the plate, the lifting plate is lowered and the fixing rod is lowered. The bottom end of the fixing rod is inserted into the fixing hole on the top of the other pull plate to complete the fixing, so that the pull plates form a whole, thereby completing the rapid splicing of the pull plates, while ensuring the overall stability of the product. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings.
[0016] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a schematic diagram of the pull plate in this utility model; Figure 3 This is a schematic diagram of the wedge block and wedge groove in this utility model; Figure 4 This is a schematic diagram of the fixing component in this utility model.
[0017] Figure descriptions: 1. Iron core; 3. Fixing component; 4. Fixing hole; 11. Pull plate; 12. Upper clamp; 13. Lower clamp; 14. Fixing bolt; 21. Wedge block; 22. Wedge groove; 31. Bidirectional threaded rod; 32. Moving plate; 33. Rotating plate; 34. Lifting plate; 35. Fixing rod; 36. Slider; 37. Fixing shaft; 38. Internal hexagonal turntable. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figures 1-4As shown, this utility model is a core tie plate, including a core 1. Multiple evenly distributed tie plates 11 are fixedly connected to the outer wall of the core 1. An upper clamp 12 is installed on the top of two adjacent tie plates 11, and a lower clamp 13 is installed on the bottom of two adjacent tie plates 11. The tie plate 11 is composed of multiple spliced tie plates. The core 1, as the core magnetic permeable component of the transformer, is the key carrier for the transformer to realize electromagnetic energy conversion and undertakes the core role of magnetic flux transmission. Its outer wall provides fixed support points for the tie plates 11, binding each structure to itself and forming the basic framework for the assembly of the transformer core, ensuring that subsequent components can be stably assembled around it. The tie plate 11 is the intermediate connecting piece between the core 1 and the upper clamp 12 and the lower clamp 13, transmitting the clamping force of the upper clamp 12 and the lower clamp 13 to the core 1. The upper clamp 12 and the lower clamp 13 cooperate and are connected by the tie plate 11 to form the upper and lower support framework for the assembly of the transformer core. One side of two adjacent pull plates is fixedly connected to a wedge block 21 and is provided with a fixing component 3. The other pull plate has a wedge groove 22 and two fixing holes 4 on one side. The wedge block 21 is used to splice the pull plates into a pull plate 11. The fixing component 3 is used to fix the pull plates. The fixing holes 4 are used to fix the pull plates by cooperating with the fixing component 3, thereby forming a rigid body. The fixing component 3 includes a bidirectional threaded rod 31 and two fixing rods 35. The bidirectional threaded rod 31 can drive the fixing rods 35 to rise and fall by rotating, which can fix two adjacent pull plates.
[0020] The outer wall of the wedge block 21 is slidably connected to the inside of the wedge groove 22, and the outer wall of the fixing rod 35 is slidably connected to the inside of the fixing hole 4.
[0021] Fixing bolts 14 are installed on both the upper and lower sides of the fixing component 3. The outer wall of a portion of the fixing bolts 14 is slidably connected to the inside of the upper clamp 12, and the outer wall of the other portion of the fixing bolts 14 is slidably connected to the inside of the lower clamp 13. Nuts are threadedly connected to the outer wall of the fixing bolts 14. The top of a portion of the nuts abuts against the inside of the upper clamp 12, and the bottom of the other portion of the nuts abuts against the inside of the lower clamp 13. The fixing bolts 14 are used to install the lower clamp 13 and the upper clamp 12 on the upper and lower sides of the pull plate 11.
[0022] The outer wall of the bidirectional threaded rod 31 is threadedly connected to two movable plates 32. The bottom of the movable plate 32 is rotatably connected to a rotating plate 33. The bottom of the rotating plate 33 is rotatably connected to a lifting plate 34. The bottom of the lifting plate 34 is fixedly connected to the top of the fixed rod 35. The outer wall of the movable plate 32 is slidably connected to the inside of the pull plate 11. The outer wall of the lifting plate 34 is slidably connected to the inside of the pull plate 11. Both sides of the lifting plate 34 are fixedly connected to sliders 36. The outer wall of the sliders 36 is slidably connected to the inside of the pull plate 11. One end of the bidirectional threaded rod 31 is rotatably connected to a fixed shaft 37. The end of the bidirectional threaded rod 31 away from the fixed shaft 37 is fixedly connected to an internal hexagonal turntable 38. The bidirectional threaded rod 31 can drive the moving plate 32 to move by rotating. The moving plate 32 can drive the rotating plate 33 to rotate by moving. The rotating plate 33 can drive the lifting plate 34 to rise and fall by rotating. The lifting plate 34 can drive the fixed rod 35 to rise and fall by rising and falling. The fixed rod 35 can fix the two pull plates by descending and cooperating with the fixed hole 4. The slider 36 is used to fix the moving path of the lifting plate 34. The fixed shaft 37 is used to fix the bidirectional threaded rod 31. The internal hexagonal turntable 38 can drive the bidirectional threaded rod 31 to rotate. The interior of the internal hexagonal turntable 38 is a hexagonal groove. The internal hexagonal turntable 38 can be driven to rotate by a hexagonal wrench. At the same time, the outer wall of the internal hexagonal turntable 38 is fixedly connected with an anti-slip pad to facilitate the rotation of the internal hexagonal turntable 38.
[0023] The working principle of this utility model is as follows: Two pull plates are initially spliced together by wedge block 21 and pull plate 11. Then, by rotating the internal hexagonal turntable 38, the bidirectional threaded rod 31 can be rotated. The rotation of the bidirectional threaded rod 31 causes the two moving plates 32 to move towards each other, which in turn causes the rotating plate 33 to rotate, thereby causing the lifting plate 34 to descend. The descent of the lifting plate 34 can cause the fixing rod 35 to descend. The bottom end of the fixing rod 35 is inserted into the fixing hole 4 on the top of another pull plate to complete the fixation, so that the pull plates 11 form a whole. Multiple pull plates 11 are installed on the iron core 1. Then, the lower clamp 13 and the upper clamp 12 are fixed by fixing bolts 14 respectively. The coil is pressed by the pressure nail of the upper clamp 12, so that the product forms a rigid body and ensures the overall stability of the product. The splicing method of the pull plates 11 facilitates partial replacement and maintenance.
[0024] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.
Claims
1. A core plate, comprising a core (1), characterized in that, The outer wall of the core (1) is fixedly connected with a plurality of evenly distributed pull plates (11). An upper clamp (12) is installed on the top of two adjacent pull plates (11), and a lower clamp (13) is installed on the bottom of two adjacent pull plates (11). The pull plate (11) is composed of a plurality of spliced pull plates. One side of each of the two adjacent pull plates is fixedly connected to a wedge block (21) and a fixing component (3) is provided. The other pull plate has a wedge groove (22) and two fixing holes (4) on one side. The fixing component (3) includes a bidirectional threaded rod (31) and two fixing rods (35). The bidirectional threaded rod (31) can drive the fixing rods (35) to rise and fall by rotating, thereby fixing two adjacent pull plates.
2. The core tie plate according to claim 1, characterized in that, The outer wall of the wedge block (21) is slidably connected to the inside of the wedge groove (22), and the outer wall of the fixing rod (35) is slidably connected to the inside of the fixing hole (4).
3. A core tie plate according to claim 1, characterized in that, The fixing component (3) is equipped with fixing bolts (14) on both the upper and lower sides. The outer wall of a portion of the fixing bolts (14) is slidably connected to the inside of the upper clamp (12), and the outer wall of the other portion of the fixing bolts (14) is slidably connected to the inside of the lower clamp (13).
4. A core tie plate according to claim 3, characterized in that, The outer wall of the fixing bolt (14) is threaded with a nut, the top of which abuts against the inside of the upper clamp (12), and the bottom of which abuts against the inside of the lower clamp (13).
5. A core tie plate according to claim 1, characterized in that, The outer wall of the bidirectional threaded rod (31) is threaded with two movable plates (32). The bottom of the movable plate (32) is rotatably connected to a rotating plate (33). The bottom of the rotating plate (33) is rotatably connected to a lifting plate (34). The bottom of the lifting plate (34) is fixedly connected to the top of the fixed rod (35).
6. A core tie plate according to claim 5, characterized in that, The outer wall of the movable plate (32) is slidably connected to the inside of the pull plate (11), and the outer wall of the lifting plate (34) is slidably connected to the inside of the pull plate (11).
7. A core tie plate according to claim 5, characterized in that, Both sides of the lifting plate (34) are fixedly connected to sliders (36), and the outer wall of the sliders (36) is slidably connected to the inside of the pull plate (11).
8. A core tie plate according to claim 1, characterized in that, One end of the bidirectional threaded rod (31) is rotatably connected to a fixed shaft (37), and the other end of the bidirectional threaded rod (31) away from the fixed shaft (37) is fixedly connected to an internal hexagonal turntable (38).
9. A core tie plate according to claim 8, characterized in that, One side of the fixed shaft (37) is fixedly connected to the inside of the pull plate (11), and the outer wall of the internal hexagonal turntable (38) is rotatably connected to the inside of the pull plate (11).