Fabricated frame structure of dry-type transformer

Abstract

The utility model discloses an assembly type frame structure of a dry-type transformer, which comprises a frame bottom plate, the upper surface of the frame bottom plate is fixedly connected with two lower cross frames which are symmetrically arranged along the length direction of the frame bottom plate, and two ends between the two lower cross frames are transversely and fixedly connected with first pulling bolts; the utility model relates to the technical field of dry-type transformer frames. According to the assembly type frame structure of the dry type transformer, the multiple limiting rails and the multiple installation transverse frame structures are arranged, the multiple installation transverse frame structures are installed at the bottom of the frame structure, the device is installed and fixed through the multiple installation transverse frame structures, and the multiple installation transverse frame structures are limited through the limiting rails; even if the device is vibrated for a long time and a bolt for fastening is loosened, the T-shaped limiting structure can also ensure the stability between the mounting cross frame structure and the frame bottom plate, the whole device cannot be easily separated from the mounting position, and the safety performance of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-type transformer frames, and particularly relates to an assembled frame structure of a dry-type transformer. Background Technique

[0002] Dry-type transformers are widely used in places such as local lighting, high-rise buildings, airports, docks, CNC machinery and equipment, etc. Briefly speaking, a dry-type transformer refers to a transformer in which the iron core and windings are not immersed in insulating oil. It is mainly composed of an iron core made of silicon steel sheets and a coil cast with epoxy resin. An insulating cylinder is placed between the high-voltage and low-voltage coils to increase electrical insulation, and the coils are supported and constrained by pads. The fasteners for overlapping of its components all have anti-loosening performance.

[0003] During the operation of a dry-type transformer, the silicon steel plates inside it will expand and contract after being electrified, and vibrations will be generated in this reciprocating process. The frame structure of a dry-type transformer is generally fixed by bolts, especially the base part. Under long-term vibrations, the bolt structure of the base part may become loose, thus bringing certain safety hazards. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an assembled frame structure of a dry-type transformer, which solves the problem that vibrations will be generated during the operation of the dry-type transformer, and under long-term vibrations, the bolt structure of the base part may become loose, thus bringing certain safety hazards.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: an assembled frame structure of a dry-type transformer, including a frame bottom plate, two symmetrically arranged lower cross frames are fixedly connected to the upper surface of the frame bottom plate along its length direction, two first connecting bolts are horizontally fixedly connected to both ends between the two lower cross frames, and a plurality of installation cross frame structures are arranged at the bottom end of the frame bottom plate;

[0006] A plurality of limiting rails with a T-shaped cross-section are horizontally fixedly connected to the bottom end of the frame bottom plate along its length direction, and a plurality of installation cross frame structures are fixedly connected to the bottom ends of the plurality of limiting rails. The structures of the plurality of installation cross frame structures are the same. One of the installation cross frame structures includes a connecting seat, and a plurality of insertion slots respectively adapted to the cross-sectional profiles of the plurality of limiting rails are opened on the upper surface of the connecting seat. A connecting cross plate is horizontally fixedly connected to the bottom end of the connecting seat;

[0007] A plurality of first connection holes respectively corresponding to the plurality of limiting rails are vertically penetrated through the bottom end of the connecting cross plate, and a plurality of second connection holes corresponding to and adapted to the plurality of first connection holes are vertically opened at the bottom ends of the plurality of limiting rails. The installation cross frame structure is detachably installed at the bottom end of the frame bottom plate through the plurality of first connection holes.

[0008] Further, vertical frames are fixedly connected to the outer surfaces of both of the lower cross frames, and upper cross frames are fixedly connected horizontally to the inner surfaces of the tops of both of the vertical frames.

[0009] Further, second connecting bolts are fixedly connected horizontally to both ends between the two upper cross frames.

[0010] Further, extension plates arranged along the length direction thereof are fixedly connected to the outer edges on both sides of the upper surface of the frame bottom plate, and a plurality of pressing structures are arranged on the inner surfaces of both of the extension plates.

[0011] Further, the structures of the plurality of pressing structures are the same. One of the pressing structures includes a transverse column fixedly connected horizontally to one side of the inner surface of one of the extension plates. A threaded hole penetrating through to the outer surface of the extension plate is horizontally opened at the inner end of the transverse column. A threaded rod is horizontally threadedly connected inside the threaded hole, and a pressing disc is fixedly connected to the inner end of the threaded rod.

[0012] Further, twisting blocks are fixedly connected to the outer ends of the plurality of threaded rods.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: For the assembled frame structure of the dry-type transformer, by arranging a plurality of limiting rails and a plurality of installation cross-frame structures, a plurality of installation cross-frame structures are installed at the bottom of the frame structure, and the device is installed and fixed through the plurality of installation cross-frame structures. The plurality of installation cross-frame structures are limited by the limiting rails. Since the limiting rails are T-shaped, even if the device is vibrated for a long time and the bolts for fastening become loose, the T-shaped limiting structure can ensure the stability between the installation cross-frame structure and the frame bottom plate, and the whole device will not easily break away from the installation position, improving the safety performance of the device. Description of the Drawings

[0014] Figure 1 is the overall side view structure schematic diagram of the present utility model;

[0015] Figure 2 is the schematic diagram of the frame bottom plate structure of the present utility model;

[0016] Figure 3 is the schematic diagram of the bottom structure of the frame bottom plate of the present utility model.

[0017] In the figure: 1-frame bottom plate, 2-lower cross frame, 3-first connecting bolt, 4-extension plate, 5-transverse column, 6-threaded rod, 7-pressing disc, 8-twisting block, 9-limiting rail, 10-connecting seat, 11-connecting cross plate, 12-first connecting hole, 13-second connecting hole, 14-vertical frame, 15-upper cross frame, 16-second connecting bolt. Detailed implementation mode

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-3 , the present utility model provides a technical solution: an assembled frame structure of a dry-type transformer, including a frame bottom plate 1. Along the length direction of the upper surface of the frame bottom plate 1, two symmetrically arranged lower cross frames 2 are fixedly connected. At both ends between the two lower cross frames 2, first connecting bolts 3 are horizontally fixedly connected. At the bottom end of the frame bottom plate 1, a plurality of installation cross frame structures are arranged;

[0020] Horizontally fixedly connected along the length direction at the bottom end of the frame bottom plate 1 are a plurality of limiting rails 9 with a T-shaped cross-section. A plurality of installation cross frame structures are fixedly connected to the bottom ends of the plurality of limiting rails 9. The structures of the plurality of installation cross frame structures are the same. One of the installation cross frame structures includes a connecting seat 10. On the upper surface of the connecting seat 10, a plurality of insertion slots respectively adapted to the cross-sectional profiles of the plurality of limiting rails 9 are opened. Horizontally fixedly connected to the bottom end of the connecting seat 10 is a connecting cross plate 11;

[0021] Vertically penetrating through the bottom end of the connecting cross plate 11 are a plurality of first connection holes 12 respectively corresponding to the plurality of limiting rails 9. Vertically opened at the bottom ends of the plurality of limiting rails 9 are second connection holes 13 corresponding to and adapted to the plurality of first connection holes 12. The installation cross frame structure is detachably installed at the bottom end of the frame bottom plate 1 through the plurality of first connection holes 12.

[0022] A plurality of installation cross frame structures are installed at the bottom of the frame structure, and the device is installed and fixed through the plurality of installation cross frame structures. The plurality of installation cross frame structures are all limited by the limiting rails 9. Since the limiting rails 9 are T-shaped, even if the device is vibrated for a long time and the bolts for fastening become loose, the T-shaped limiting structure can ensure the stability between the installation cross frame structure and the frame bottom plate 1, and the whole device will not easily break away from the installation position, improving the safety performance of the device.

[0023] The two lower cross frames 2 can press and fix the silicon steel plates, and the first connecting bolts 3 on both sides can ensure the clamping stability between the two lower cross frames 2, thereby ensuring the overall stability of the device.

[0024] Vertically fixedly connected to the outer surfaces of the two lower cross frames 2 are vertical frames 14. Horizontally fixedly connected to the inner surfaces at the tops of the two vertical frames 14 are upper cross frames 15.

[0025] Both ends between the two upper cross frames 15 are horizontally fixedly connected with second connecting bolts 16.

[0026] The effects of the two upper cross frames 15 are the same as those of the two lower cross frames 2, and multiple second connecting bolts 16 can improve the clamping stability of the two upper cross frames 15.

[0027] Extension plates 4 arranged along the length direction are fixedly connected to the outer edges on both sides of the upper surface of the frame bottom plate 1, and multiple pressing structures are arranged on the inner side surfaces of the two extension plates 4.

[0028] The structures of the multiple pressing structures are the same. One of the pressing structures includes a transverse column 5 horizontally fixedly connected to one side of the inner side surface of an extension plate 4. A threaded hole penetrating through to the outer side surface of the extension plate 4 is horizontally opened at the inner end of the transverse column 5. A threaded rod 6 is horizontally threadedly connected inside the threaded hole, and a pressing disc 7 is fixedly connected to the inner end of the threaded rod 6.

[0029] In addition to ensuring the clamping stability between the two lower cross frames 2 through multiple first connecting bolts 3, the same effect can also be achieved through multiple pressing structures. During the process of rotating the threaded rod 6, the threaded rod 6 will move in the direction of the lower cross frame 3 under the action of the threaded hole until the pressing disc 7 at the inner end of the threaded rod 6 closely adheres to the outer side surface of the lower cross frame 3. Under the combined action of the multiple pressing structures, the clamping stability between the two lower cross frames 2 is further improved.

[0030] Torsion blocks 8 are fixedly connected to the outer ends of the multiple threaded rods 6.

[0031] The torsion blocks 8 facilitate people to rotate the threaded rods 6 and are labor-saving structures.

[0032] When the device is working, multiple installation cross frame structures are installed at the bottom of the frame structure, and the device is installed and fixed through the multiple installation cross frame structures. The multiple installation cross frame structures are all limited by the limit rails 9. Since the limit rails 9 are T-shaped, even if the device is vibrated for a long time and the bolts for fastening become loose, the T-shaped limit structure can also ensure the stability between the installation cross frame structures and the frame bottom plate 1, and the whole device will not easily break away from the installation position, improving the safety performance of the device.

[0033] It should be noted that in this text, relational terms 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 actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0034] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, 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. An assembled frame structure for a dry-type transformer, characterized in that: It includes a frame bottom plate (1), and two symmetrically arranged lower cross frames (2) are fixedly connected to the upper surface of the frame bottom plate (1) along its length direction. At both ends between the two lower cross frames (2), first connecting bolts (3) are horizontally fixedly connected. A plurality of mounting cross frame structures are arranged at the bottom end of the frame bottom plate (1); A plurality of T-shaped limiting rails (9) are horizontally fixedly connected to the bottom end of the frame bottom plate (1) along its length direction. A plurality of the mounting cross frame structures are fixedly connected to the bottom ends of the plurality of limiting rails (9). The structures of the plurality of mounting cross frame structures are the same. One of the mounting cross frame structures includes a connecting seat (10). A plurality of plugging grooves adapted to the cross-sectional contours of the plurality of limiting rails (9) are formed on the upper surface of the connecting seat (10). A connecting cross plate (11) is horizontally fixedly connected to the bottom end of the connecting seat (10); A plurality of first connecting holes (12) corresponding to the plurality of limiting rails (9) respectively are vertically formed through the bottom end of the connecting cross plate (11). Second connecting holes (13) corresponding to and adapted to the plurality of first connecting holes (12) are vertically formed at the bottom ends of the plurality of limiting rails (9). The mounting cross frame structure is detachably mounted on the bottom end of the frame bottom plate (1) through the plurality of first connecting holes (12).

2. The assembled frame structure of a dry-type transformer according to claim 1, wherein: Vertical frames (14) are vertically fixedly connected to the outer surfaces of the two lower cross frames (2). Upper cross frames (15) are horizontally fixedly connected to the inner surfaces of the tops of the two vertical frames (14).

3. The assembled frame structure of a dry-type transformer according to claim 2, characterized in that: Second connecting bolts (16) are horizontally fixedly connected to both ends between the two upper cross frames (15).

4. The assembled frame structure of a dry-type transformer according to claim 1, characterized in that: Extension plates (4) arranged along its length direction are fixedly connected to the outer edges on both sides of the upper surface of the frame bottom plate (1). A plurality of pressing structures are arranged on the inner surfaces of the two extension plates (4).

5. The assembled frame structure of a dry-type transformer according to claim 4, characterized in that: The structures of the plurality of pressing structures are the same. One of the pressing structures includes a transverse column (5) horizontally fixedly connected to one side of the inner surface of one extension plate (4). A threaded hole penetrating through the outer surface of the extension plate (4) is horizontally formed at the inner end of the transverse column (5). A threaded rod (6) is horizontally threadedly connected inside the threaded hole. A pressing disc (7) is fixedly connected to the inner end of the threaded rod (6).

6. The assembled frame structure of a dry-type transformer according to claim 5, characterized in that: Twisting blocks (8) are fixedly connected to the outer ends of the plurality of threaded rods (6).

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